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Split website out into one file per page. APply new layout and styling

This commit is contained in:
Daniel P. Berrange 2008-04-23 17:08:31 +00:00
parent 95a7adf3e6
commit 9092c3d491
106 changed files with 13380 additions and 8632 deletions
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14
ChangeLog
View File

@ -1,3 +1,17 @@
Wed Apr 23 12:18:11 EST 2008 Daniel P. Berrange <berrange@redhat.com>
* docs/libvir.html, docs/*.html.in: Removed merged HTML docs
and replaced with one file per page
* docs/*.html: Re-generated with new page layout
* docs/page.xsl: New master page template and navigation
* docs/site.xsl, docs/newapi.xsl, docs/ChangeLog.xsl: Updated
to use new page.xsl templates
* libvirt-net-*.{fig,png}: Added diagrams illustrating some
ways of using virtual networking
* docs/*.css: New styles for site
* docs/html/*: Re-generated for new page layout & removed
unused files
2008-04-21 Jim Meyering <meyering@redhat.com>
Enable 'make syntax-check's sc_changelog rule.

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docs/ChangeLog.xsl
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@ -3,83 +3,35 @@
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<!-- Import the rest of the site stylesheets -->
<xsl:import href="site.xsl"/>
<!-- Generate XHTML-1.0 transitional -->
<xsl:output method="xml" encoding="ISO-8859-1" indent="yes"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"/>
<xsl:param name="module">libvirt</xsl:param>
<!-- The table of content for the HTML page -->
<xsl:variable name="menu_name">API Menu</xsl:variable>
<xsl:variable name="develtoc">
<form action="../search.php"
enctype="application/x-www-form-urlencoded" method="get">
<input name="query" type="text" size="20" value=""/>
<input name="submit" type="submit" value="Search ..."/>
</form>
<ul><!-- style="margin-left: -1em" -->
<li><a style="font-weight:bold"
href="{$href_base}index.html">Main Menu</a></li>
<li><a style="font-weight:bold"
href="{$href_base}html/index.html">Modules Index</a></li>
<li><a style="font-weight:bold"
href="index.html">API Menu</a></li>
</ul>
</xsl:variable>
<xsl:template match="bug">
<a href="https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id={@number}">
<xsl:value-of select="@number"/></a>
</xsl:template>
<xsl:template match="item">
<li><xsl:apply-templates/></li>
</xsl:template>
<xsl:template match="entry">
<p>
<b><xsl:value-of select="@who"/></b>
<xsl:text> </xsl:text>
<xsl:value-of select="@date"/>
<xsl:text> </xsl:text>
<xsl:value-of select="@timezone"/>
<span class="author"><xsl:value-of select="@who"/> </span>
<span class="date"><xsl:value-of select="@date"/> </span>
<span class="timezone"><xsl:value-of select="@timezone"/> </span>
</p>
<ul>
<xsl:apply-templates select="item"/>
</ul>
</p>
</xsl:template>
<xsl:template match="log">
<xsl:variable name="title">ChangeLog last entries of <xsl:value-of select="$module"/></xsl:variable>
<html>
<head>
<xsl:call-template name="style"/>
<xsl:element name="title">
<xsl:value-of select="$title"/>
</xsl:element>
</head>
<body>
<div id="container">
<div id="intro">
<div id="adjustments"/>
<div id="pageHeader"/>
<div id="content2">
<xsl:call-template name="titlebox">
<xsl:with-param name="title" select="$title"/>
</xsl:call-template>
<xsl:apply-templates select="entry"/>
</div>
</div>
<xsl:call-template name="linkList2"/>
<xsl:call-template name="bottom"/>
</div>
</body>
</html>
<html>
<body>
<h1>Log of recent changes to libvirt</h1>
<div id="changelog">
<xsl:apply-templates select="entry"/>
</div>
</body>
</html>
</xsl:template>
</xsl:stylesheet>

229
docs/FAQ.html
View File

@ -1,80 +1,205 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>FAQ</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">FAQ</h1><p>Table of Contents:</p><ul><li><a href="FAQ.html#License">License(s)</a></li>
<li><a href="FAQ.html#Installati">Installation</a></li>
<li><a href="FAQ.html#Compilatio">Compilation</a></li>
<li><a href="FAQ.html#Developer">Developer corner</a></li>
</ul><h3><a name="License" id="License">License</a>(s)</h3><ol><li><em>Licensing Terms for libvirt</em>
<p>libvirt is released under the <a href="http://www.opensource.org/licenses/lgpl-license.html">GNU Lesser
<html xmlns="http://www.w3.org/1999/xhtml">
<!--
This file is autogenerated from FAQ.html.in
Do not edit this file. Changes will be lost.
-->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<link rel="stylesheet" type="text/css" href="main.css" />
<link rel="SHORTCUT ICON" href="32favicon.png" />
<title>libvirt: FAQ</title>
<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
<div id="header">
<div id="headerLogo"></div>
<div id="headerSearch">
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</form>
</div>
</div>
<div id="body">
<div id="content">
<h1>FAQ</h1>
<p>Table of Contents:</p>
<ul><li>
<a href="FAQ.html#License">License(s)</a>
</li><li>
<a href="FAQ.html#Installati">Installation</a>
</li><li>
<a href="FAQ.html#Compilatio">Compilation</a>
</li><li>
<a href="FAQ.html#Developer">Developer corner</a>
</li></ul>
<h3><a name="License" id="License">License</a>(s)</h3>
<ol><li>
<em>Licensing Terms for libvirt</em>
<p>libvirt is released under the <a href="http://www.opensource.org/licenses/lgpl-license.html">GNU Lesser
General Public License</a>, see the file COPYING.LIB in the distribution
for the precise wording. The only library that libvirt depends upon is
the Xen store access library which is also licenced under the LGPL.</p>
</li>
<li><em>Can I embed libvirt in a proprietary application ?</em>
<p>Yes. The LGPL allows you to embed libvirt into a proprietary
</li><li>
<em>Can I embed libvirt in a proprietary application ?</em>
<p>Yes. The LGPL allows you to embed libvirt into a proprietary
application. It would be graceful to send-back bug fixes and improvements
as patches for possible incorporation in the main development tree. It
will decrease your maintenance costs anyway if you do so.</p>
</li>
</ol><h3><a name="Installati" id="Installati">Installation</a></h3><ol><li><em>Where can I get libvirt</em> ?
</li></ol>
<h3>
<a name="Installati" id="Installati">Installation</a>
</h3>
<ol><li><em>Where can I get libvirt</em> ?
<p>The original distribution comes from <a href="ftp://libvirt.org/libvirt/">ftp://libvirt.org/libvirt/</a>.</p>
</li>
<li><em>I can't install the libvirt/libvirt-devel RPM packages due to
</li><li>
<em>I can't install the libvirt/libvirt-devel RPM packages due to
failed dependencies</em>
<p>The most generic solution is to re-fetch the latest src.rpm , and
<p>The most generic solution is to re-fetch the latest src.rpm , and
rebuild it locally with</p>
<p><code>rpm --rebuild libvirt-xxx.src.rpm</code>.</p>
<p>If everything goes well it will generate two binary rpm packages (one
<p><code>rpm --rebuild libvirt-xxx.src.rpm</code>.</p>
<p>If everything goes well it will generate two binary rpm packages (one
providing the shared libs and virsh, and the other one, the -devel
package, providing includes, static libraries and scripts needed to build
applications with libvirt that you can install locally.</p>
<p>One can also rebuild the RPMs from a tarball:</p>
<p><code>rpmbuild -ta libdir-xxx.tar.gz</code></p>
<p>Or from a configured tree with:</p>
<p><code>make rpm</code></p>
</li>
<li><em>Failure to use the API for non-root users</em>
<p>Large parts of the API may only be accessible with root privileges,
<p>One can also rebuild the RPMs from a tarball:</p>
<p>
<code>rpmbuild -ta libdir-xxx.tar.gz</code>
</p>
<p>Or from a configured tree with:</p>
<p>
<code>make rpm</code>
</p>
</li><li>
<em>Failure to use the API for non-root users</em>
<p>Large parts of the API may only be accessible with root privileges,
however the read only access to the xenstore data doesnot have to be
forbidden to user, at least for monitoring purposes. If "virsh dominfo"
fails to run as an user, change the mode of the xenstore read-only socket
with:</p>
<p><code>chmod 666 /var/run/xenstored/socket_ro</code></p>
<p>and also make sure that the Xen Daemon is running correctly with local
<p>
<code>chmod 666 /var/run/xenstored/socket_ro</code>
</p>
<p>and also make sure that the Xen Daemon is running correctly with local
HTTP server enabled, this is defined in
<code>/etc/xen/xend-config.sxp</code> which need the following line to be
enabled:</p>
<p><code>(xend-http-server yes)</code></p>
<p>If needed restart the xend daemon after making the change with the
<p>
<code>(xend-http-server yes)</code>
</p>
<p>If needed restart the xend daemon after making the change with the
following command run as root:</p>
<p><code>service xend restart</code></p>
</li>
</ol><h3><a name="Compilatio" id="Compilatio">Compilation</a></h3><ol><li><em>What is the process to compile libvirt ?</em>
<p>As most UNIX libraries libvirt follows the "standard":</p>
<p><code>gunzip -c libvirt-xxx.tar.gz | tar xvf -</code></p>
<p><code>cd libvirt-xxxx</code></p>
<p><code>./configure --help</code></p>
<p>to see the options, then the compilation/installation proper</p>
<p><code>./configure [possible options]</code></p>
<p><code>make</code></p>
<p><code>make install</code></p>
<p>At that point you may have to rerun ldconfig or a similar utility to
<p>
<code>service xend restart</code>
</p>
</li></ol>
<h3>
<a name="Compilatio" id="Compilatio">Compilation</a>
</h3>
<ol><li>
<em>What is the process to compile libvirt ?</em>
<p>As most UNIX libraries libvirt follows the "standard":</p>
<p>
<code>gunzip -c libvirt-xxx.tar.gz | tar xvf -</code>
</p>
<p>
<code>cd libvirt-xxxx</code>
</p>
<p>
<code>./configure --help</code>
</p>
<p>to see the options, then the compilation/installation proper</p>
<p>
<code>./configure [possible options]</code>
</p>
<p>
<code>make</code>
</p>
<p>
<code>make install</code>
</p>
<p>At that point you may have to rerun ldconfig or a similar utility to
update your list of installed shared libs.</p>
</li>
<li><em>What other libraries are needed to compile/install libvirt ?</em>
<p>Libvirt requires libxenstore, which is usually provided by the xen
</li><li>
<em>What other libraries are needed to compile/install libvirt ?</em>
<p>Libvirt requires libxenstore, which is usually provided by the xen
packages as well as the public headers to compile against libxenstore.</p>
</li>
<li><em>I use the CVS version and there is no configure script</em>
<p>The configure script (and other Makefiles) are generated. Use the
</li><li>
<em>I use the CVS version and there is no configure script</em>
<p>The configure script (and other Makefiles) are generated. Use the
autogen.sh script to regenerate the configure script and Makefiles,
like:</p>
<p><code>./autogen.sh --prefix=/usr --disable-shared</code></p>
</li>
</ol><h3><a name="Developer" id="Developer">Developer</a> corner</h3><ol><li><em>Troubles compiling or linking programs using libvirt</em>
<p>To simplify the process of reusing the library, libvirt comes with
<p>
<code>./autogen.sh --prefix=/usr --disable-shared</code>
</p>
</li></ol>
<h3><a name="Developer" id="Developer">Developer</a> corner</h3>
<ol><li>
<em>Troubles compiling or linking programs using libvirt</em>
<p>To simplify the process of reusing the library, libvirt comes with
pkgconfig support, which can be used directly from autoconf support or
via the pkg-config command line tool, like:</p>
<p><code>pkg-config libvirt --libs</code></p>
</li>
</ol></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
<p>
<code>pkg-config libvirt --libs</code>
</p>
</li></ol>
</div>
<div id="menu">
<ul class="l0"><li>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</li><li>
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
</li><li>
<a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="downloads.html">Downloads</a>
</li><li>
<a title="Information for users, administrators and developers" class="inactive" href="docs.html">Documentation</a>
</li><li>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</li><li>
<span class="active">FAQ</span>
</li><li>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</li><li>
<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
</li><li>
<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
</li><li>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</li></ul>
</div>
</div>
<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
</body>
</html>

144
docs/FAQ.html.in Normal file
View File

@ -0,0 +1,144 @@
<?xml version="1.0"?>
<html>
<body>
<h1 >FAQ</h1>
<p>Table of Contents:</p>
<ul>
<li>
<a href="FAQ.html#License">License(s)</a>
</li>
<li>
<a href="FAQ.html#Installati">Installation</a>
</li>
<li>
<a href="FAQ.html#Compilatio">Compilation</a>
</li>
<li>
<a href="FAQ.html#Developer">Developer corner</a>
</li>
</ul>
<h3><a name="License" id="License">License</a>(s)</h3>
<ol>
<li>
<em>Licensing Terms for libvirt</em>
<p>libvirt is released under the <a href="http://www.opensource.org/licenses/lgpl-license.html">GNU Lesser
General Public License</a>, see the file COPYING.LIB in the distribution
for the precise wording. The only library that libvirt depends upon is
the Xen store access library which is also licenced under the LGPL.</p>
</li>
<li>
<em>Can I embed libvirt in a proprietary application ?</em>
<p>Yes. The LGPL allows you to embed libvirt into a proprietary
application. It would be graceful to send-back bug fixes and improvements
as patches for possible incorporation in the main development tree. It
will decrease your maintenance costs anyway if you do so.</p>
</li>
</ol>
<h3>
<a name="Installati" id="Installati">Installation</a>
</h3>
<ol>
<li><em>Where can I get libvirt</em> ?
<p>The original distribution comes from <a href="ftp://libvirt.org/libvirt/">ftp://libvirt.org/libvirt/</a>.</p>
</li>
<li>
<em>I can't install the libvirt/libvirt-devel RPM packages due to
failed dependencies</em>
<p>The most generic solution is to re-fetch the latest src.rpm , and
rebuild it locally with</p>
<p><code>rpm --rebuild libvirt-xxx.src.rpm</code>.</p>
<p>If everything goes well it will generate two binary rpm packages (one
providing the shared libs and virsh, and the other one, the -devel
package, providing includes, static libraries and scripts needed to build
applications with libvirt that you can install locally.</p>
<p>One can also rebuild the RPMs from a tarball:</p>
<p>
<code>rpmbuild -ta libdir-xxx.tar.gz</code>
</p>
<p>Or from a configured tree with:</p>
<p>
<code>make rpm</code>
</p>
</li>
<li>
<em>Failure to use the API for non-root users</em>
<p>Large parts of the API may only be accessible with root privileges,
however the read only access to the xenstore data doesnot have to be
forbidden to user, at least for monitoring purposes. If "virsh dominfo"
fails to run as an user, change the mode of the xenstore read-only socket
with:</p>
<p>
<code>chmod 666 /var/run/xenstored/socket_ro</code>
</p>
<p>and also make sure that the Xen Daemon is running correctly with local
HTTP server enabled, this is defined in
<code>/etc/xen/xend-config.sxp</code> which need the following line to be
enabled:</p>
<p>
<code>(xend-http-server yes)</code>
</p>
<p>If needed restart the xend daemon after making the change with the
following command run as root:</p>
<p>
<code>service xend restart</code>
</p>
</li>
</ol>
<h3>
<a name="Compilatio" id="Compilatio">Compilation</a>
</h3>
<ol>
<li>
<em>What is the process to compile libvirt ?</em>
<p>As most UNIX libraries libvirt follows the "standard":</p>
<p>
<code>gunzip -c libvirt-xxx.tar.gz | tar xvf -</code>
</p>
<p>
<code>cd libvirt-xxxx</code>
</p>
<p>
<code>./configure --help</code>
</p>
<p>to see the options, then the compilation/installation proper</p>
<p>
<code>./configure [possible options]</code>
</p>
<p>
<code>make</code>
</p>
<p>
<code>make install</code>
</p>
<p>At that point you may have to rerun ldconfig or a similar utility to
update your list of installed shared libs.</p>
</li>
<li>
<em>What other libraries are needed to compile/install libvirt ?</em>
<p>Libvirt requires libxenstore, which is usually provided by the xen
packages as well as the public headers to compile against libxenstore.</p>
</li>
<li>
<em>I use the CVS version and there is no configure script</em>
<p>The configure script (and other Makefiles) are generated. Use the
autogen.sh script to regenerate the configure script and Makefiles,
like:</p>
<p>
<code>./autogen.sh --prefix=/usr --disable-shared</code>
</p>
</li>
</ol>
<h3><a name="Developer" id="Developer">Developer</a> corner</h3>
<ol>
<li>
<em>Troubles compiling or linking programs using libvirt</em>
<p>To simplify the process of reusing the library, libvirt comes with
pkgconfig support, which can be used directly from autoconf support or
via the pkg-config command line tool, like:</p>
<p>
<code>pkg-config libvirt --libs</code>
</p>
</li>
</ol>
</body>
</html>

94
docs/Makefile.am
View File

@ -4,45 +4,45 @@ SUBDIRS= . examples devhelp
# The directory containing the source code (if it contains documentation).
DOC_SOURCE_DIR=../src
PAGES= index.html bugs.html FAQ.html remote.html
man_MANS=
html = \
book1.html \
apihtml = \
index.html \
libvirt-conf.html \
libvirt-lib.html \
libvirt-libvirt.html \
libvirt-virterror.html
png = \
apipng = \
left.png \
up.png \
home.png \
right.png
png = \
16favicon.png \
32favicon.png \
et_logo.png \
footer_corner.png \
footer_pattern.png \
libvirHeader.png \
libvirLogo.png \
libvirt-header-bg.png \
libvirt-header-logo.png \
libvirtLogo.png \
libvirt-net-logical.png \
libvirt-net-physical.png \
madeWith.png \
windows-cygwin-1.png \
windows-cygwin-2.png \
windows-cygwin-3.png
gif = \
Libxml2-Logo-90x34.gif \
architecture.gif \
node.gif \
redhat.gif
dot_html = \
FAQ.html \
architecture.html \
bugs.html \
downloads.html \
errors.html \
format.html \
hvsupport.html \
index.html \
intro.html \
libvir.html \
news.html \
python.html \
remote.html \
uri.html
dot_html_in = $(wildcard *.html.in)
dot_html = $(dot_html_in:%.html.in=%.html)
xml = \
libvirt-api.xml \
@ -57,12 +57,16 @@ rng = \
libvirt.rng \
network.rng
fig = \
libvirt-net-logical.fig \
libvirt-net-physical.fig
EXTRA_DIST= \
libvirt-api.xml libvirt-refs.xml apibuild.py \
site.xsl newapi.xsl news.xsl \
$(dot_html) $(gif) html \
$(xml) $(rng) \
virsh.pod
site.xsl newapi.xsl news.xsl page.xsl ChangeLog.xsl \
$(dot_html) $(dot_html_in) $(gif) html/*.html html/*.png \
$(xml) $(rng) $(fig) $(png) \
virsh.pod ChangeLog.awk
all: web $(top_builddir)/NEWS $(man_MANS)
@ -73,18 +77,30 @@ virsh.1: virsh.pod
api: libvirt-api.xml libvirt-refs.xml $(srcdir)/html/index.html
web: $(PAGES)
web: $(dot_html)
$(PAGES): libvir.html site.xsl
-@(if [ -x $(XSLTPROC) ] ; then \
echo "Rebuilding the HTML Web pages from libvir.html" ; \
$(XSLTPROC) --nonet --html $(top_srcdir)/docs/site.xsl $(top_srcdir)/docs/libvir.html > index.html ; fi );
-@(if [ -x $(XMLLINT) ] ; then \
echo "Validating the HTML Web pages" ; \
$(XMLLINT) --nonet --valid --noout $(PAGES) ; fi );
ChangeLog.xml: ../ChangeLog ChangeLog.awk
awk -f ChangeLog.awk < $< > $@
ChangeLog.html.in: ChangeLog.xml ChangeLog.xsl
@(if [ -x $(XSLTPROC) ] ; then \
echo "Generating $@"; \
name=`echo $@ | sed -e 's/.tmp//'`; \
$(XSLTPROC) --nonet $(top_srcdir)/docs/ChangeLog.xsl $< > $@ || (rm $@ && exit 1) ; fi )
%.html.tmp: %.html.in site.xsl page.xsl sitemap.html.in
@(if [ -x $(XSLTPROC) ] ; then \
echo "Generating $@"; \
name=`echo $@ | sed -e 's/.tmp//'`; \
$(XSLTPROC) --stringparam pagename $$name --nonet --html $(top_srcdir)/docs/site.xsl $< > $@ || (rm $@ && exit 1) ; fi )
%.html: %.html.tmp
@(if [ -x $(XMLLINT) ] ; then \
echo "Validating $@" ; \
$(XMLLINT) --nonet --format --valid $< > $@ || : ; fi );
$(srcdir)/html/index.html: libvirt-api.xml $(srcdir)/newapi.xsl
$(srcdir)/html/index.html: libvirt-api.xml newapi.xsl page.xsl sitemap.html.in
-@(if [ -x $(XSLTPROC) ] ; then \
echo "Rebuilding the HTML pages from the XML API" ; \
$(XSLTPROC) --nonet $(srcdir)/newapi.xsl libvirt-api.xml ; fi )
@ -115,11 +131,11 @@ install-data-local:
$(srcdir)/redhat.gif $(srcdir)/Libxml2-Logo-90x34.gif \
$(DESTDIR)$(HTML_DIR)
$(mkinstalldirs) $(DESTDIR)$(HTML_DIR)/html
for h in $(html); do \
for h in $(apihtml); do \
$(INSTALL) -m 0644 $(srcdir)/html/$$h $(DESTDIR)$(HTML_DIR)/html; done
for p in $(png); do \
for p in $(apipng); do \
$(INSTALL) -m 0644 $(srcdir)/html/$$p $(DESTDIR)$(HTML_DIR)/html; done
uninstall-local:
for h in $(html); do rm $(DESTDIR)$(HTML_DIR)/html/$$h; done
for p in $(png); do rm $(DESTDIR)$(HTML_DIR)/html/$$p; done
for h in $(apihtml); do rm $(DESTDIR)$(HTML_DIR)/html/$$h; done
for p in $(apipng); do rm $(DESTDIR)$(HTML_DIR)/html/$$p; done

154
docs/apps.html Normal file
View File

@ -0,0 +1,154 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<!--
This file is autogenerated from apps.html.in
Do not edit this file. Changes will be lost.
-->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<link rel="stylesheet" type="text/css" href="main.css" />
<link rel="SHORTCUT ICON" href="32favicon.png" />
<title>libvirt: Applications using libvirt</title>
<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
<div id="header">
<div id="headerLogo"></div>
<div id="headerSearch">
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</form>
</div>
</div>
<div id="body">
<div id="content">
<h1>Applications using <strong>libvirt</strong></h1>
<p>
This page provides an illustration of the wide variety of
applications using the libvirt management API. If you know
of interesting applications not listed on this page, send
a message to the <a href="contact.html">mailing list</a>
to request that it be added here. If your application uses
libvirt as its API, the following graphic is available for
your website to advertise support for libvirt:
</p>
<p class="image">
<img src="madeWith.png" alt="Made with libvirt" /></p>
<h2>Command line tools</h2>
<dl><dt>virsh</dt><dd>
An interactive shell, and batch scriptable tool for performing
management tasks on all libvirt managed domains, networks and
storage. This is part of the libvirt core distribution.
</dd><dt><a href="http://virt-manager.org/">virt-install</a></dt><dd>
Provides a way to provision new virtual machines from a
OS distribution install tree. It supports provisioning from
local CD images, and the network over NFS, HTTP and FTP.
</dd><dt><a href="http://virt-manager.org/">virt-clone</a></dt><dd>
Allows the disk image(s) and configuration for an existing
virtual machine to be cloned to form a new virtual machine.
It automates copying of data across to new disk images, and
updates the UUID, Mac address and name in the configuration
</dd><dt><a href="http://virt-manager.org/">virt-image</a></dt><dd>
Provides a way to deploy virtual appliances. It defines a
simplified portable XML format describing the pre-requisites
of a virtual machine. At time of deployment this is translated
into the domain XML format for execution under any libvirt
hypervisor meeting the pre-requisites.
</dd><dt><a href="http://et.redhat.com/~rjones/virt-df/">virt-df</a></dt><dd>
Examine the utilization of each filesystem in a virtual machine
from the comfort of the host machine. This tool peeks into the
guest disks and determines how much space is used. It can cope
with common Linux filesystems and LVM volumes.
</dd><dt><a href="http://et.redhat.com/~rjones/virt-top/">virt-top</a></dt><dd>
Watch the CPU, memory, network and disk utilization of all
virtual machines running on a host.
</dd></dl>
<h2>Desktop applications</h2>
<dl><dt><a href="http://virt-manager.org/">virt-manager</a></dt><dd>
A general purpose desktop management tool, able to manage
virtual machines across both local and remotely accessed
hypervisors. It is targetted at home and small office usage
upto managing 10-20 hosts and their VMs.
</dd><dt><a href="http://virt-manager.org/">virt-viewer</a></dt><dd>
A lightweight tool for accessing the graphical console
associated with a virtual machine. It can securely connect
to remote consoles supporting the VNC protocol. Also provides
an optional mozilla browser plugin.
</dd></dl>
<h2>Web applications</h2>
<dl><dt><a href="http://ovirt.org/">oVirt</a></dt><dd>
oVirt provides the ability to manage large numbers of virtual
machines across an entire data center of hosts. It integrates
with FreeIPA for Kerberos authentication, and in the future,
certificate management.
</dd></dl>
<h2>LiveCD / Appliances</h2>
<dl><dt><a href="http://et.redhat.com/~rjones/virt-p2v/">virt-p2v</a></dt><dd>
A tool for converting a physical machine into a virtual machine. It
is a LiveCD which is booted on the machine to be converted. It collects
a little information from the user and then copies the disks over to
a remote machine and defines the XML for a domain to run the guest.
</dd></dl>
</div>
<div id="menu">
<ul class="l0"><li>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</li><li>
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
</li><li>
<a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="downloads.html">Downloads</a>
</li><li>
<a title="Information for users, administrators and developers" class="inactive" href="docs.html">Documentation</a>
</li><li>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</li><li>
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
</li><li>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</li><li>
<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
</li><li>
<a title="Miscellaneous links of interest related to libvirt" class="active" href="relatedlinks.html">Related Links</a>
<ul class="l1"><li>
<span class="active">Applications</span>
</li></ul>
</li><li>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</li></ul>
</div>
</div>
<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
</body>
</html>

108
docs/apps.html.in Normal file
View File

@ -0,0 +1,108 @@
<html>
<body>
<h1>Applications using <strong>libvirt</strong></h1>
<p>
This page provides an illustration of the wide variety of
applications using the libvirt management API. If you know
of interesting applications not listed on this page, send
a message to the <a href="contact.html">mailing list</a>
to request that it be added here. If your application uses
libvirt as its API, the following graphic is available for
your website to advertise support for libvirt:
</p>
<p class="image">
<img src="madeWith.png" alt="Made with libvirt"/>
</p>
<h2>Command line tools</h2>
<dl>
<dt>virsh</dt>
<dd>
An interactive shell, and batch scriptable tool for performing
management tasks on all libvirt managed domains, networks and
storage. This is part of the libvirt core distribution.
</dd>
<dt><a href="http://virt-manager.org/">virt-install</a></dt>
<dd>
Provides a way to provision new virtual machines from a
OS distribution install tree. It supports provisioning from
local CD images, and the network over NFS, HTTP and FTP.
</dd>
<dt><a href="http://virt-manager.org/">virt-clone</a></dt>
<dd>
Allows the disk image(s) and configuration for an existing
virtual machine to be cloned to form a new virtual machine.
It automates copying of data across to new disk images, and
updates the UUID, Mac address and name in the configuration
</dd>
<dt><a href="http://virt-manager.org/">virt-image</a></dt>
<dd>
Provides a way to deploy virtual appliances. It defines a
simplified portable XML format describing the pre-requisites
of a virtual machine. At time of deployment this is translated
into the domain XML format for execution under any libvirt
hypervisor meeting the pre-requisites.
</dd>
<dt><a href="http://et.redhat.com/~rjones/virt-df/">virt-df</a></dt>
<dd>
Examine the utilization of each filesystem in a virtual machine
from the comfort of the host machine. This tool peeks into the
guest disks and determines how much space is used. It can cope
with common Linux filesystems and LVM volumes.
</dd>
<dt><a href="http://et.redhat.com/~rjones/virt-top/">virt-top</a></dt>
<dd>
Watch the CPU, memory, network and disk utilization of all
virtual machines running on a host.
</dd>
</dl>
<h2>Desktop applications</h2>
<dl>
<dt><a href="http://virt-manager.org/">virt-manager</a></dt>
<dd>
A general purpose desktop management tool, able to manage
virtual machines across both local and remotely accessed
hypervisors. It is targetted at home and small office usage
upto managing 10-20 hosts and their VMs.
</dd>
<dt><a href="http://virt-manager.org/">virt-viewer</a></dt>
<dd>
A lightweight tool for accessing the graphical console
associated with a virtual machine. It can securely connect
to remote consoles supporting the VNC protocol. Also provides
an optional mozilla browser plugin.
</dd>
</dl>
<h2>Web applications</h2>
<dl>
<dt><a href="http://ovirt.org/">oVirt</a></dt>
<dd>
oVirt provides the ability to manage large numbers of virtual
machines across an entire data center of hosts. It integrates
with FreeIPA for Kerberos authentication, and in the future,
certificate management.
</dd>
</dl>
<h2>LiveCD / Appliances</h2>
<dl>
<dt><a href="http://et.redhat.com/~rjones/virt-p2v/">virt-p2v</a></dt>
<dd>
A tool for converting a physical machine into a virtual machine. It
is a LiveCD which is booted on the machine to be converted. It collects
a little information from the user and then copies the disks over to
a remote machine and defines the XML for a domain to run the guest.
</dd>
</dl>
</body>
</html>

107
docs/archdomain.html Normal file
View File

@ -0,0 +1,107 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<!--
This file is autogenerated from archdomain.html.in
Do not edit this file. Changes will be lost.
-->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<link rel="stylesheet" type="text/css" href="main.css" />
<link rel="SHORTCUT ICON" href="32favicon.png" />
<title>libvirt: Domain management architecture</title>
<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
<div id="header">
<div id="headerLogo"></div>
<div id="headerSearch">
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</form>
</div>
</div>
<div id="body">
<div id="content">
<h1>Domain management architecture</h1>
</div>
<div id="menu">
<ul class="l0"><li>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</li><li>
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
</li><li>
<a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="downloads.html">Downloads</a>
</li><li>
<a title="Information for users, administrators and developers" class="active" href="docs.html">Documentation</a>
<ul class="l1"><li>
<a title="Information about deploying and using libvirt" class="inactive" href="deployment.html">Deployment</a>
</li><li>
<a title="Overview of the logical subsystems in the libvirt API" class="active" href="intro.html">Architecture</a>
<ul class="l2"><li>
<span class="active">Domains</span>
</li><li>
<a title="Providing isolated networks and NAT based network connectivity" class="inactive" href="archnetwork.html">Network</a>
</li><li>
<a title="Managing storage pools and volumes" class="inactive" href="archstorage.html">Storage</a>
</li><li>
<a title="Enumerating host node devices" class="inactive" href="archnode.html">Node Devices</a>
</li></ul>
</li><li>
<a title="Description of the XML formats used in libvirt" class="inactive" href="format.html">XML format</a>
</li><li>
<a title="Hypervisor specific driver information" class="inactive" href="drivers.html">Drivers</a>
</li><li>
<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
</li><li>
<a title="Bindings of the libvirt API for other languages" class="inactive" href="bindings.html">Language bindings</a>
</li></ul>
</li><li>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</li><li>
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
</li><li>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</li><li>
<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
</li><li>
<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
</li><li>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</li></ul>
</div>
</div>
<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
</body>
</html>

5
docs/archdomain.html.in Normal file
View File

@ -0,0 +1,5 @@
<html>
<body>
<h1>Domain management architecture</h1>
</body>
</html>

161
docs/architecture.html
View File

@ -1,11 +1,44 @@
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>libvirt architecture</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">libvirt architecture</h1><p>Currently libvirt supports 2 kind of virtualization, and its
<html xmlns="http://www.w3.org/1999/xhtml">
<!--
This file is autogenerated from architecture.html.in
Do not edit this file. Changes will be lost.
-->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<link rel="stylesheet" type="text/css" href="main.css" />
<link rel="SHORTCUT ICON" href="32favicon.png" />
<title>libvirt: libvirt architecture</title>
<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
<div id="header">
<div id="headerLogo"></div>
<div id="headerSearch">
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</form>
</div>
</div>
<div id="body">
<div id="content">
<h1>libvirt architecture</h1>
<p>Currently libvirt supports 2 kind of virtualization, and its
internal structure is based on a driver model which simplifies adding new
engines:</p><ul><li><a href="#Xen">Xen hypervisor</a></li>
<li><a href="#QEmu">QEmu and KVM based virtualization</a></li>
<li><a href="#drivers">the driver architecture</a></li>
</ul><h3><a name="Xen" id="Xen">Libvirt Xen support</a></h3><p>When running in a Xen environment, programs using libvirt have to execute
engines:</p>
<ul><li>
<a href="#Xen">Xen hypervisor</a>
</li><li>
<a href="#QEmu">QEmu and KVM based virtualization</a>
</li><li>
<a href="#drivers">the driver architecture</a>
</li></ul>
<h3>
<a name="Xen" id="Xen">Libvirt Xen support</a>
</h3>
<p>When running in a Xen environment, programs using libvirt have to execute
in "Domain 0", which is the primary Linux OS loaded on the machine. That OS
kernel provides most if not all of the actual drivers used by the set of
domains. It also runs the Xen Store, a database of information shared by the
@ -13,22 +46,27 @@ hypervisor, the kernels, the drivers and the xen daemon. Xend. The xen daemon
supervise the control and execution of the sets of domains. The hypervisor,
drivers, kernels and daemons communicate though a shared system bus
implemented in the hypervisor. The figure below tries to provide a view of
this environment:</p><img src="architecture.gif" alt="The Xen architecture" /><p>The library can be initialized in 2 ways depending on the level of
this environment:</p>
<img src="architecture.gif" alt="The Xen architecture" />
<p>The library can be initialized in 2 ways depending on the level of
privilege of the embedding program. If it runs with root access,
virConnectOpen() can be used, it will use three different ways to connect to
the Xen infrastructure:</p><ul><li>a connection to the Xen Daemon though an HTTP RPC layer</li>
<li>a read/write connection to the Xen Store</li>
<li>use Xen Hypervisor calls</li>
<li>when used as non-root libvirt connect to a proxy daemon running
as root and providing read-only support</li>
</ul><p>The library will usually interact with the Xen daemon for any operation
the Xen infrastructure:</p>
<ul><li>a connection to the Xen Daemon though an HTTP RPC layer</li><li>a read/write connection to the Xen Store</li><li>use Xen Hypervisor calls</li><li>when used as non-root libvirt connect to a proxy daemon running
as root and providing read-only support</li></ul>
<p>The library will usually interact with the Xen daemon for any operation
changing the state of the system, but for performance and accuracy reasons
may talk directly to the hypervisor when gathering state information at
least when possible (i.e. when the running program using libvirt has root
privilege access).</p><p>If it runs without root access virConnectOpenReadOnly() should be used to
privilege access).</p>
<p>If it runs without root access virConnectOpenReadOnly() should be used to
connect to initialize the library. It will then fork a libvirt_proxy
program running as root and providing read_only access to the API, this is
then only useful for reporting and monitoring.</p><h3><a name="QEmu" id="QEmu">Libvirt QEmu and KVM support</a></h3><p>The model for QEmu and KVM is completely similar, basically KVM is based
then only useful for reporting and monitoring.</p>
<h3>
<a name="QEmu" id="QEmu">Libvirt QEmu and KVM support</a>
</h3>
<p>The model for QEmu and KVM is completely similar, basically KVM is based
on QEmu for the process controlling a new domain, only small details differs
between the two. In both case the libvirt API is provided by a controlling
process forked by libvirt in the background and which launch and control the
@ -36,8 +74,13 @@ QEmu or KVM process. That program called libvirt_qemud talks though a specific
protocol to the library, and connects to the console of the QEmu process in
order to control and report on its status. Libvirt tries to expose all the
emulations models of QEmu, the selection is done when creating the new
domain, by specifying the architecture and machine type targeted.</p><p>The code controlling the QEmu process is available in the
<code>qemud/</code> directory.</p><h3><a name="drivers" id="drivers">the driver based architecture</a></h3><p>As the previous section explains, libvirt can communicate using different
domain, by specifying the architecture and machine type targeted.</p>
<p>The code controlling the QEmu process is available in the
<code>qemud/</code> directory.</p>
<h3>
<a name="drivers" id="drivers">the driver based architecture</a>
</h3>
<p>As the previous section explains, libvirt can communicate using different
channels with the current hypervisor, and should also be able to use
different kind of hypervisor. To simplify the internal design, code, ease
maintenance and simplify the support of other virtualization engine the
@ -46,22 +89,76 @@ acting as a front-end for the library API and a set of hypervisor drivers
defining a common set of routines. That way the Xen Daemon access, the Xen
Store one, the Hypervisor hypercall are all isolated in separate C modules
implementing at least a subset of the common operations defined by the
drivers present in driver.h:</p><ul><li>xend_internal: implements the driver functions though the Xen
Daemon</li>
<li>xs_internal: implements the subset of the driver available though the
Xen Store</li>
<li>xen_internal: provide the implementation of the functions possible via
direct hypervisor access</li>
<li>proxy_internal: provide read-only Xen access via a proxy, the proxy code
is in the <code>proxy/</code>directory.</li>
<li>xm_internal: provide support for Xen defined but not running
domains.</li>
<li>qemu_internal: implement the driver functions for QEmu and
drivers present in driver.h:</p>
<ul><li>xend_internal: implements the driver functions though the Xen
Daemon</li><li>xs_internal: implements the subset of the driver available though the
Xen Store</li><li>xen_internal: provide the implementation of the functions possible via
direct hypervisor access</li><li>proxy_internal: provide read-only Xen access via a proxy, the proxy code
is in the <code>proxy/</code>directory.</li><li>xm_internal: provide support for Xen defined but not running
domains.</li><li>qemu_internal: implement the driver functions for QEmu and
KVM virtualization engines. It also uses a qemud/ specific daemon
which interacts with the QEmu process to implement libvirt API.</li>
<li>test: this is a test driver useful for regression tests of the
front-end part of libvirt.</li>
</ul><p>Note that a given driver may only implement a subset of those functions,
which interacts with the QEmu process to implement libvirt API.</li><li>test: this is a test driver useful for regression tests of the
front-end part of libvirt.</li></ul>
<p>Note that a given driver may only implement a subset of those functions,
(for example saving a Xen domain state to disk and restoring it is only
possible though the Xen Daemon), in that case the driver entry points for
unsupported functions are initialized to NULL.</p><p></p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
unsupported functions are initialized to NULL.</p>
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<body>
<h1 >libvirt architecture</h1>
<p>Currently libvirt supports 2 kind of virtualization, and its
internal structure is based on a driver model which simplifies adding new
engines:</p>
<ul>
<li>
<a href="#Xen">Xen hypervisor</a>
</li>
<li>
<a href="#QEmu">QEmu and KVM based virtualization</a>
</li>
<li>
<a href="#drivers">the driver architecture</a>
</li>
</ul>
<h3>
<a name="Xen" id="Xen">Libvirt Xen support</a>
</h3>
<p>When running in a Xen environment, programs using libvirt have to execute
in "Domain 0", which is the primary Linux OS loaded on the machine. That OS
kernel provides most if not all of the actual drivers used by the set of
domains. It also runs the Xen Store, a database of information shared by the
hypervisor, the kernels, the drivers and the xen daemon. Xend. The xen daemon
supervise the control and execution of the sets of domains. The hypervisor,
drivers, kernels and daemons communicate though a shared system bus
implemented in the hypervisor. The figure below tries to provide a view of
this environment:</p>
<img src="architecture.gif" alt="The Xen architecture" />
<p>The library can be initialized in 2 ways depending on the level of
privilege of the embedding program. If it runs with root access,
virConnectOpen() can be used, it will use three different ways to connect to
the Xen infrastructure:</p>
<ul>
<li>a connection to the Xen Daemon though an HTTP RPC layer</li>
<li>a read/write connection to the Xen Store</li>
<li>use Xen Hypervisor calls</li>
<li>when used as non-root libvirt connect to a proxy daemon running
as root and providing read-only support</li>
</ul>
<p>The library will usually interact with the Xen daemon for any operation
changing the state of the system, but for performance and accuracy reasons
may talk directly to the hypervisor when gathering state information at
least when possible (i.e. when the running program using libvirt has root
privilege access).</p>
<p>If it runs without root access virConnectOpenReadOnly() should be used to
connect to initialize the library. It will then fork a libvirt_proxy
program running as root and providing read_only access to the API, this is
then only useful for reporting and monitoring.</p>
<h3>
<a name="QEmu" id="QEmu">Libvirt QEmu and KVM support</a>
</h3>
<p>The model for QEmu and KVM is completely similar, basically KVM is based
on QEmu for the process controlling a new domain, only small details differs
between the two. In both case the libvirt API is provided by a controlling
process forked by libvirt in the background and which launch and control the
QEmu or KVM process. That program called libvirt_qemud talks though a specific
protocol to the library, and connects to the console of the QEmu process in
order to control and report on its status. Libvirt tries to expose all the
emulations models of QEmu, the selection is done when creating the new
domain, by specifying the architecture and machine type targeted.</p>
<p>The code controlling the QEmu process is available in the
<code>qemud/</code> directory.</p>
<h3>
<a name="drivers" id="drivers">the driver based architecture</a>
</h3>
<p>As the previous section explains, libvirt can communicate using different
channels with the current hypervisor, and should also be able to use
different kind of hypervisor. To simplify the internal design, code, ease
maintenance and simplify the support of other virtualization engine the
internals have been structured as one core component, the libvirt.c module
acting as a front-end for the library API and a set of hypervisor drivers
defining a common set of routines. That way the Xen Daemon access, the Xen
Store one, the Hypervisor hypercall are all isolated in separate C modules
implementing at least a subset of the common operations defined by the
drivers present in driver.h:</p>
<ul>
<li>xend_internal: implements the driver functions though the Xen
Daemon</li>
<li>xs_internal: implements the subset of the driver available though the
Xen Store</li>
<li>xen_internal: provide the implementation of the functions possible via
direct hypervisor access</li>
<li>proxy_internal: provide read-only Xen access via a proxy, the proxy code
is in the <code>proxy/</code>directory.</li>
<li>xm_internal: provide support for Xen defined but not running
domains.</li>
<li>qemu_internal: implement the driver functions for QEmu and
KVM virtualization engines. It also uses a qemud/ specific daemon
which interacts with the QEmu process to implement libvirt API.</li>
<li>test: this is a test driver useful for regression tests of the
front-end part of libvirt.</li>
</ul>
<p>Note that a given driver may only implement a subset of those functions,
(for example saving a Xen domain state to disk and restoring it is only
possible though the Xen Daemon), in that case the driver entry points for
unsupported functions are initialized to NULL.</p>
<p></p>
</body>
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<h1>Network management architecture</h1>
<h2>Architecture illustration</h2>
<p>
The diagrams below illustrate some of the network configurations
enabled by the libvirt networking APIs
</p>
<ul><li><strong>VLAN 1</strong>. This virtual network has connectivity
to <code>LAN 2</code> with traffic forwarded and NATed.
</li><li><strong>VLAN 2</strong>. This virtual network is completely
isolated from any physical LAN.
</li><li><strong>Guest A</strong>. The first network interface is bridged
to the physical <code>LAN 1</code>. The second interface is connected
to a virtual network <code>VLAN 1</code>.
</li><li><strong>Guest B</strong>. The first network interface is connected
to a virtual network <code>VLAN 1</code>, giving it limited NAT
based connectivity to LAN2. It has a second network interface
connected to <code>VLAN 2</code>. It acts a router allowing limited
traffic between the two VLANs, thus giving <code>Guest C</code>
connectivity to the physical <code>LAN 2</code>.
</li><li><strong>Guest C</strong>. The only network interface is connected
to a virtual network <code>VLAN 2</code>. It has no direct connectivity
to a physical LAN, relying on <code>Guest B</code> to route traffic
on its behalf.
</li></ul>
<h3>Logical diagram</h3>
<p class="image">
<img src="libvirt-net-logical.png" alt="Logical network architecture" /></p>
<h3>Physical diagram</h3>
<p class="image">
<img src="libvirt-net-physical.png" alt="Physical network architecture" /></p>
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<body>
<h1>Network management architecture</h1>
<h2>Architecture illustration</h2>
<p>
The diagrams below illustrate some of the network configurations
enabled by the libvirt networking APIs
</p>
<ul>
<li><strong>VLAN 1</strong>. This virtual network has connectivity
to <code>LAN 2</code> with traffic forwarded and NATed.
</li>
<li><strong>VLAN 2</strong>. This virtual network is completely
isolated from any physical LAN.
</li>
<li><strong>Guest A</strong>. The first network interface is bridged
to the physical <code>LAN 1</code>. The second interface is connected
to a virtual network <code>VLAN 1</code>.
</li>
<li><strong>Guest B</strong>. The first network interface is connected
to a virtual network <code>VLAN 1</code>, giving it limited NAT
based connectivity to LAN2. It has a second network interface
connected to <code>VLAN 2</code>. It acts a router allowing limited
traffic between the two VLANs, thus giving <code>Guest C</code>
connectivity to the physical <code>LAN 2</code>.
</li>
<li><strong>Guest C</strong>. The only network interface is connected
to a virtual network <code>VLAN 2</code>. It has no direct connectivity
to a physical LAN, relying on <code>Guest B</codE> to route traffic
on its behalf.
</li>
</ul>
<h3>Logical diagram</h3>
<p class="image">
<img src="libvirt-net-logical.png" alt="Logical network architecture"/>
</p>
<h3>Physical diagram</h3>
<p class="image">
<img src="libvirt-net-physical.png" alt="Physical network architecture"/>
</p>
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<h1>Storage management architecture</h1>
<p>
The storage management APIs are based around 2 core concepts
</p>
<ol><li>
<strong>Volume</strong> - a single storage volume which can
be assigned to a guest, or used for creating further pools. A
volume is either a block device, a raw file, or a special format
file.
</li><li>
<strong>Pool</strong> - provides a means for taking a chunk
of storage and carving it up into volumes. A pool can be used to
manage things such as a physical disk, a NFS server, a iSCSI target,
a host adapter, an LVM group.
</li></ol>
<p>
These two concepts are mapped through to two libvirt objects, a
<code>virStorageVolPtr</code> and a <code>virStoragePoolPtr</code>,
each with a collection of APIs for their management.
</p>
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<body>
<h1>Storage management architecture</h1>
<p>
The storage management APIs are based around 2 core concepts
</p>
<ol>
<li>
<strong>Volume</strong> - a single storage volume which can
be assigned to a guest, or used for creating further pools. A
volume is either a block device, a raw file, or a special format
file.
</li>
<li>
<strong>Pool</strong> - provides a means for taking a chunk
of storage and carving it up into volumes. A pool can be used to
manage things such as a physical disk, a NFS server, a iSCSI target,
a host adapter, an LVM group.
</li>
</ol>
<p>
These two concepts are mapped through to two libvirt objects, a
<code>virStorageVolPtr</code> and a <code>virStoragePoolPtr</code>,
each with a collection of APIs for their management.
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<h1>Access control</h1>
<p>
When connecting to libvirt, some connections may require client
authentication before allowing use of the APIs. The set of possible
authentication mechanisms is administrator controlled, independent
of applications using libvirt.
</p><ul><li><a href="#ACL_server_config">Server configuration</a></li>
<li><a href="#ACL_server_unix_perms">UNIX socket permissions/group</a></li>
<li><a href="#ACL_server_polkit">UNIX socket PolicyKit auth</a></li>
<li><a href="#ACL_server_username">Username/password auth</a></li>
<li><a href="#ACL_server_kerberos">Kerberos auth</a></li>
</ul><h3 name="ACL_server_config">Server configuration</h3><p>
</p>
<ul><li>
<a href="#ACL_server_config">Server configuration</a>
</li><li>
<a href="#ACL_server_unix_perms">UNIX socket permissions/group</a>
</li><li>
<a href="#ACL_server_polkit">UNIX socket PolicyKit auth</a>
</li><li>
<a href="#ACL_server_username">Username/password auth</a>
</li><li>
<a href="#ACL_server_kerberos">Kerberos auth</a>
</li></ul>
<h3>
<a name="ACL_server_config" id="ACL_server_config">Server configuration</a>
</h3>
<p>
The libvirt daemon allows the administrator to choose the authentication
mechanisms used for client connections on each network socket independently.
This is primarily controlled via the libvirt daemon master config file in
@ -19,21 +54,30 @@ have its authentication mechanism configured independently. There is
currently a choice of <code>none</code>, <code>polkit</code>, and <code>sasl</code>.
The SASL scheme can be further configured to choose between a large
number of different mechanisms.
</p><h3 name="ACL_server_unix_perms">UNIX socket permissions/group</h3><p>
</p>
<h3>
<a name="ACL_server_unix_perms" id="ACL_server_unix_perms">UNIX socket permissions/group</a>
</h3>
<p>
If libvirt does not contain support for PolicyKit, then access control for
the UNIX domain socket is done using traditional file user/group ownership
and permissions. There are 2 sockets, one for full read-write access, the
other for read-only access. The RW socket will be restricted (mode 0700) to
only allow the <code>root</code> user to connect. The read-only socket will
be open access (mode 0777) to allow any user to connect.
</p><p>
</p>
<p>
To allow non-root users greater access, the <code>libvirtd.conf</code> file
can be edited to change the permissions via the <code>unix_sock_rw_perms</code>,
config parameter and to set a user group via the <code>unix_sock_group</code>
parameter. For example, setting the former to mode <code>0770</code> and the
latter <code>wheel</code> would let any user in the wheel group connect to
the libvirt daemon.
</p><h3 name="ACL_server_polkit">UNIX socket PolicyKit auth</h3><p>
</p>
<h3>
<a name="ACL_server_polkit" id="ACL_server_polkit">UNIX socket PolicyKit auth</a>
</h3>
<p>
If libvirt contains support for PolicyKit, then access control options are
more advanced. The <code>unix_sock_auth</code> parameter will default to
<code>polkit</code>, and the file permissions will default to <code>0777</code>
@ -43,24 +87,31 @@ RW daemon socket will require any application running in the current desktop
session to authenticate using the user's password. This is akin to <code>sudo</code>
auth, but does not require that the client application ultimately run as root.
Default policy will still allow any application to connect to the RO socket.
</p><p>
</p>
<p>
The default policy can be overridden by the administrator using the PolicyKit
master configuration file in <code>/etc/PolicyKit/PolicyKit.conf</code>. The
<code>PolicyKit.conf(5)</code> manual page provides details on the syntax
available. The two libvirt daemon actions available are named <code>org.libvirt.unix.monitor</code>
for the RO socket, and <code>org.libvirt.unix.manage</code> for the RW socket.
</p><p>
</p>
<p>
As an example, to allow a user <code>fred</code>full access to the RW socket,
while requiring <code>joe</code> to authenticate with the admin password,
would require adding the following snippet to <code>PolicyKit.conf</code>.
</p><pre>
</p>
<pre>
&lt;match action="org.libvirt.unix.manage" user="fred"&gt;
&lt;return result="yes"/&gt;
&lt;/match&gt;
&lt;match action="org.libvirt.unix.manage" user="joe"&gt;
&lt;return result="auth_admin"/&gt;
&lt;/match&gt;
</pre><h3 name="ACL_server_username">Username/password auth</h3><p>
</pre>
<h3>
<a name="ACL_server_username" id="ACL_server_username">Username/password auth</a>
</h3>
<p>
The plain TCP socket of the libvirt daemon defaults to using SASL for authentication.
The SASL mechanism configured by default is DIGEST-MD5, which provides a basic
username+password style authentication. It also provides for encryption of the data
@ -68,28 +119,38 @@ stream, so the security of the plain TCP socket is on a par with that of the TLS
socket. If desired the UNIX socket and TLS socket can also have SASL enabled by
setting the <code>auth_unix_ro</code>, <code>auth_unix_rw</code>, <code>auth_tls</code>
config params in <code>libvirt.conf</code>.
</p><p>
</p>
<p>
Out of the box, no user accounts are defined, so no clients will be able to authenticate
on the TCP socket. Adding users and setting their passwords is done with the <code>saslpasswd2</code>
command. When running this command it is important to tell it that the appname is <code>libvirt</code>.
As an example, to add a user <code>fred</code>, run
</p><pre>
</p>
<pre>
# saslpasswd2 -a libvirt fred
Password: xxxxxx
Again (for verification): xxxxxx
</pre><p>
</pre>
<p>
To see a list of all accounts the <code>sasldblistusers2</code> command can be used.
This command expects to be given the path to the libvirt user database, which is kept
in <code>/etc/libvirt/passwd.db</code>
</p><pre>
</p>
<pre>
# sasldblistusers2 -f /etc/libvirt/passwd.db
fred@t60wlan.home.berrange.com: userPassword
</pre><p>
</pre>
<p>
Finally, to disable a user's access, the <code>saslpasswd2</code> command can be used
again:
</p><pre>
</p>
<pre>
# saslpasswd2 -a libvirt -d fred
</pre><h3 name="ACL_server_kerberos">Kerberos auth</h3><p>
</pre>
<h3>
<a name="ACL_server_kerberos" id="ACL_server_kerberos">Kerberos auth</a>
</h3>
<p>
The plain TCP socket of the libvirt daemon defaults to using SASL for authentication.
The SASL mechanism configured by default is DIGEST-MD5, which provides a basic
username+password style authentication. To enable Kerberos single-sign-on instead,
@ -98,19 +159,22 @@ The <code>mech_list</code> parameter must first be changed to <code>gssapi</code
instead of the default <code>digest-md5</code>. If SASL is enabled on the UNIX
and/or TLS sockets, Kerberos will also be used for them. Like DIGEST-MD5, the Kerberos
mechanism provides data encryption of the session.
</p><p>
</p>
<p>
Some operating systems do not install the SASL kerberos plugin by default. It
may be necessary to install a sub-package such as <code>cyrus-sasl-gssapi</code>.
To check whether the Kerberos plugin is installed run the <code>pluginviewer</code>
program and verify that <code>gssapi</code> is listed,eg:
</p><pre>
</p>
<pre>
# pluginviewer
...snip...
Plugin "gssapiv2" [loaded], API version: 4
SASL mechanism: GSSAPI, best SSF: 56
security flags: NO_ANONYMOUS|NO_PLAINTEXT|NO_ACTIVE|PASS_CREDENTIALS|MUTUAL_AUTH
features: WANT_CLIENT_FIRST|PROXY_AUTHENTICATION|NEED_SERVER_FQDN
</pre><p>
</pre>
<p>
Next is is necessary for the administrator of the Kerberos realm to issue a principle
for the libvirt server. There needs to be one principle per host running the libvirt
daemon. The principle should be named <code>libvirt/full.hostname@KERBEROS.REALM</code>.
@ -118,7 +182,8 @@ This is typically done by running the <code>kadmin.local</code> command on the K
server, though some Kerberos servers have alternate ways of setting up service principles.
Once created, the principle should be exported to a keytab, copied to the host running
the libvirt daemon and placed in <code>/etc/libvirt/krb5.tab</code>
</p><pre>
</p>
<pre>
# kadmin.local
kadmin.local: add_principal libvirt/foo.example.com
Enter password for principal "libvirt/foo.example.com@EXAMPLE.COM":
@ -135,9 +200,90 @@ kadmin.local: quit
# scp /root/libvirt-foo-example.tab root@foo.example.com:/etc/libvirt/krb5.tab
# rm /root/libvirt-foo-example.tab
</pre><p>
</pre>
<p>
Any client application wishing to connect to a Kerberos enabled libvirt server
merely needs to run <code>kinit</code> to gain a user principle. This may well
be done automatically when a user logs into a desktop session, if PAM is setup
to authenticate against Kerberos.
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<body>
<h1 >Access control</h1>
<p>
When connecting to libvirt, some connections may require client
authentication before allowing use of the APIs. The set of possible
authentication mechanisms is administrator controlled, independent
of applications using libvirt.
</p>
<ul>
<li>
<a href="#ACL_server_config">Server configuration</a>
</li>
<li>
<a href="#ACL_server_unix_perms">UNIX socket permissions/group</a>
</li>
<li>
<a href="#ACL_server_polkit">UNIX socket PolicyKit auth</a>
</li>
<li>
<a href="#ACL_server_username">Username/password auth</a>
</li>
<li>
<a href="#ACL_server_kerberos">Kerberos auth</a>
</li>
</ul>
<h3><a name="ACL_server_config">Server configuration</a></h3>
<p>
The libvirt daemon allows the administrator to choose the authentication
mechanisms used for client connections on each network socket independently.
This is primarily controlled via the libvirt daemon master config file in
<code>/etc/libvirt/libvirtd.conf</code>. Each of the libvirt sockets can
have its authentication mechanism configured independently. There is
currently a choice of <code>none</code>, <code>polkit</code>, and <code>sasl</code>.
The SASL scheme can be further configured to choose between a large
number of different mechanisms.
</p>
<h3><a name="ACL_server_unix_perms">UNIX socket permissions/group</a></h3>
<p>
If libvirt does not contain support for PolicyKit, then access control for
the UNIX domain socket is done using traditional file user/group ownership
and permissions. There are 2 sockets, one for full read-write access, the
other for read-only access. The RW socket will be restricted (mode 0700) to
only allow the <code>root</code> user to connect. The read-only socket will
be open access (mode 0777) to allow any user to connect.
</p>
<p>
To allow non-root users greater access, the <code>libvirtd.conf</code> file
can be edited to change the permissions via the <code>unix_sock_rw_perms</code>,
config parameter and to set a user group via the <code>unix_sock_group</code>
parameter. For example, setting the former to mode <code>0770</code> and the
latter <code>wheel</code> would let any user in the wheel group connect to
the libvirt daemon.
</p>
<h3><a name="ACL_server_polkit">UNIX socket PolicyKit auth</a></h3>
<p>
If libvirt contains support for PolicyKit, then access control options are
more advanced. The <code>unix_sock_auth</code> parameter will default to
<code>polkit</code>, and the file permissions will default to <code>0777</code>
even on the RW socket. Upon connecting to the socket, the client application
will be required to identify itself with PolicyKit. The default policy for the
RW daemon socket will require any application running in the current desktop
session to authenticate using the user's password. This is akin to <code>sudo</code>
auth, but does not require that the client application ultimately run as root.
Default policy will still allow any application to connect to the RO socket.
</p>
<p>
The default policy can be overridden by the administrator using the PolicyKit
master configuration file in <code>/etc/PolicyKit/PolicyKit.conf</code>. The
<code>PolicyKit.conf(5)</code> manual page provides details on the syntax
available. The two libvirt daemon actions available are named <code>org.libvirt.unix.monitor</code>
for the RO socket, and <code>org.libvirt.unix.manage</code> for the RW socket.
</p>
<p>
As an example, to allow a user <code>fred</code>full access to the RW socket,
while requiring <code>joe</code> to authenticate with the admin password,
would require adding the following snippet to <code>PolicyKit.conf</code>.
</p>
<pre>
&lt;match action="org.libvirt.unix.manage" user="fred"&gt;
&lt;return result="yes"/&gt;
&lt;/match&gt;
&lt;match action="org.libvirt.unix.manage" user="joe"&gt;
&lt;return result="auth_admin"/&gt;
&lt;/match&gt;
</pre>
<h3><a name="ACL_server_username">Username/password auth</a></h3>
<p>
The plain TCP socket of the libvirt daemon defaults to using SASL for authentication.
The SASL mechanism configured by default is DIGEST-MD5, which provides a basic
username+password style authentication. It also provides for encryption of the data
stream, so the security of the plain TCP socket is on a par with that of the TLS
socket. If desired the UNIX socket and TLS socket can also have SASL enabled by
setting the <code>auth_unix_ro</code>, <code>auth_unix_rw</code>, <code>auth_tls</code>
config params in <code>libvirt.conf</code>.
</p>
<p>
Out of the box, no user accounts are defined, so no clients will be able to authenticate
on the TCP socket. Adding users and setting their passwords is done with the <code>saslpasswd2</code>
command. When running this command it is important to tell it that the appname is <code>libvirt</code>.
As an example, to add a user <code>fred</code>, run
</p>
<pre>
# saslpasswd2 -a libvirt fred
Password: xxxxxx
Again (for verification): xxxxxx
</pre>
<p>
To see a list of all accounts the <code>sasldblistusers2</code> command can be used.
This command expects to be given the path to the libvirt user database, which is kept
in <code>/etc/libvirt/passwd.db</code>
</p>
<pre>
# sasldblistusers2 -f /etc/libvirt/passwd.db
fred@t60wlan.home.berrange.com: userPassword
</pre>
<p>
Finally, to disable a user's access, the <code>saslpasswd2</code> command can be used
again:
</p>
<pre>
# saslpasswd2 -a libvirt -d fred
</pre>
<h3><a name="ACL_server_kerberos">Kerberos auth</a></h3>
<p>
The plain TCP socket of the libvirt daemon defaults to using SASL for authentication.
The SASL mechanism configured by default is DIGEST-MD5, which provides a basic
username+password style authentication. To enable Kerberos single-sign-on instead,
the libvirt SASL configuration file must be changed. This is <code>/etc/sasl2/libvirt.conf</code>.
The <code>mech_list</code> parameter must first be changed to <code>gssapi</code>
instead of the default <code>digest-md5</code>. If SASL is enabled on the UNIX
and/or TLS sockets, Kerberos will also be used for them. Like DIGEST-MD5, the Kerberos
mechanism provides data encryption of the session.
</p>
<p>
Some operating systems do not install the SASL kerberos plugin by default. It
may be necessary to install a sub-package such as <code>cyrus-sasl-gssapi</code>.
To check whether the Kerberos plugin is installed run the <code>pluginviewer</code>
program and verify that <code>gssapi</code> is listed,eg:
</p>
<pre>
# pluginviewer
...snip...
Plugin "gssapiv2" [loaded], API version: 4
SASL mechanism: GSSAPI, best SSF: 56
security flags: NO_ANONYMOUS|NO_PLAINTEXT|NO_ACTIVE|PASS_CREDENTIALS|MUTUAL_AUTH
features: WANT_CLIENT_FIRST|PROXY_AUTHENTICATION|NEED_SERVER_FQDN
</pre>
<p>
Next is is necessary for the administrator of the Kerberos realm to issue a principle
for the libvirt server. There needs to be one principle per host running the libvirt
daemon. The principle should be named <code>libvirt/full.hostname@KERBEROS.REALM</code>.
This is typically done by running the <code>kadmin.local</code> command on the Kerberos
server, though some Kerberos servers have alternate ways of setting up service principles.
Once created, the principle should be exported to a keytab, copied to the host running
the libvirt daemon and placed in <code>/etc/libvirt/krb5.tab</code>
</p>
<pre>
# kadmin.local
kadmin.local: add_principal libvirt/foo.example.com
Enter password for principal "libvirt/foo.example.com@EXAMPLE.COM":
Re-enter password for principal "libvirt/foo.example.com@EXAMPLE.COM":
Principal "libvirt/foo.example.com@EXAMPLE.COM" created.
kadmin.local: ktadd -k /root/libvirt-foo-example.tab libvirt/foo.example.com@EXAMPLE.COM
Entry for principal libvirt/foo.example.com@EXAMPLE.COM with kvno 4, encryption type Triple DES cbc mode with HMAC/sha1 added to keytab WRFILE:/root/libvirt-foo-example.tab.
Entry for principal libvirt/foo.example.com@EXAMPLE.COM with kvno 4, encryption type ArcFour with HMAC/md5 added to keytab WRFILE:/root/libvirt-foo-example.tab.
Entry for principal libvirt/foo.example.com@EXAMPLE.COM with kvno 4, encryption type DES with HMAC/sha1 added to keytab WRFILE:/root/libvirt-foo-example.tab.
Entry for principal libvirt/foo.example.com@EXAMPLE.COM with kvno 4, encryption type DES cbc mode with RSA-MD5 added to keytab WRFILE:/root/libvirt-foo-example.tab.
kadmin.local: quit
# scp /root/libvirt-foo-example.tab root@foo.example.com:/etc/libvirt/krb5.tab
# rm /root/libvirt-foo-example.tab
</pre>
<p>
Any client application wishing to connect to a Kerberos enabled libvirt server
merely needs to run <code>kinit</code> to gain a user principle. This may well
be done automatically when a user logs into a desktop session, if PAM is setup
to authenticate against Kerberos.
</p>
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<h1>Bindings for other languages</h1>
<p>Libvirt comes with bindings to support other languages than
pure C. First the headers embeds the necessary declarations to
allow direct acces from C++ code, but also we have bindings for
higher level kind of languages:</p>
<ul><li>Python: Libvirt comes with direct support for the Python language
(just make sure you installed the libvirt-python package if not
compiling from sources). See below for more information about
using libvirt with python</li><li>Perl: Daniel Berrange provides <a href="http://search.cpan.org/dist/Sys-Virt/">bindings for
Perl</a>.</li><li>OCaml: Richard Jones supplies <a href="http://libvirt.org/ocaml/">bindings for OCaml</a>.</li><li>Ruby: David Lutterkort provides <a href="http://libvirt.org/ruby/">bindings for Ruby</a>.</li></ul>
<p>Support, requests or help for libvirt bindings are welcome on
the <a href="https://www.redhat.com/mailman/listinfo/libvir-list/">mailing
list</a>, as usual try to provide enough background information
and make sure you use recent version, see the <a href="bugs.html">help
page</a>.</p>
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<h1 >Bindings for other languages</h1>
<p>Libvirt comes with bindings to support other languages than
pure C. First the headers embeds the necessary declarations to
allow direct acces from C++ code, but also we have bindings for
higher level kind of languages:</p>
<ul>
<li>Python: Libvirt comes with direct support for the Python language
(just make sure you installed the libvirt-python package if not
compiling from sources). See below for more information about
using libvirt with python</li>
<li>Perl: Daniel Berrange provides <a href="http://search.cpan.org/dist/Sys-Virt/">bindings for
Perl</a>.</li>
<li>OCaml: Richard Jones supplies <a href="http://libvirt.org/ocaml/">bindings for OCaml</a>.</li>
<li>Ruby: David Lutterkort provides <a href="http://libvirt.org/ruby/">bindings for Ruby</a>.</li>
</ul>
<p>Support, requests or help for libvirt bindings are welcome on
the <a href="https://www.redhat.com/mailman/listinfo/libvir-list/">mailing
list</a>, as usual try to provide enough background information
and make sure you use recent version, see the <a href="bugs.html">help
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with an <a href="https://www.redhat.com/archives/libvir-list/">on-line
archive</a>. Please subscribe to this list before posting by visiting the <a href="https://www.redhat.com/mailman/listinfo/libvir-list">associated Web</a>
page and follow the instructions. Patches with explanations and provided as
attachments are really appreciated and will be discussed on the mailing list.
If possible generate the patches by using cvs diff -u in a CVS checkout.</p><p>We use Red Hat Bugzilla to track bugs and new feature requests to libvirt.
If you want to report a bug or ask for a feature, please check <a href="http://bugzilla.redhat.com/bugzilla/buglist.cgi?component=libvirt&amp;component=libvirt-devel&amp;component=libvirt-python&amp;bug_status=ASSIGNED&amp;bug_status=INVESTIGATE&amp;bug_status=NEW&amp;bug_status=REOPENED&amp;bug_status=VERIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr&amp;long_desc=&amp;Search=Search">the existing open bugs</a>, then if yours isn't a duplicate of
an existing bug:</p><ul><li>If you are using official binaries from Fedora: <a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=libvirt">log a new bug for Fedora</a></li>
<li>If you are using official binaries from Red Hat Enterprise Linux 5: <a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=Red%20Hat%20Enterprise%20Linux%205">log a new bug for RHEL</a></li>
<li>Otherwise: <a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=Virtualization%20Tools">log a new bug here</a></li>
</ul><p> Don't forget to attach any patch or extra data that you may have available. It is always a good idea to also
to post to the <a href="mailto:libvir-list@redhat.com">mailing-list</a>
too, so that everybody working on the project can see it, thanks !</p><p>Some of the libvirt developers may be found on IRC on the OFTC
network. Use the settings:</p><ul><li>server: irc.oftc.net</li>
<li>port: 6667 (the usual IRC port)</li>
<li>channel: #virt</li>
</ul><p> But there is no guarantee that someone will be watching or able to reply,
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<h1>Bug reporting</h1>
<p>
The <a href="http://bugzilla.redhat.com">Red Hat Bugzilla Server</a>
should be used to report bugs and request features against libvirt.
Before submitting a ticket, check the existing tickets to see if
the bug/feature is already tracked.
</p>
<h2>General libvirt bug reports</h2>
<p>
If you are using official libvirt binaries from a Linux distribution
check below for distribution specific bug reporting policies first.
For general libvirt bug reports, from self-built releases, CVS snapshots
and any other non-distribution supported builds, enter tickets under
the <code>Virtualization Tools</code> product and the <code>libvirt</code>
component.
</p>
<ul><li><a href="">View libvirt tickets</a></li><li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Virtualization%20Tools&amp;component=libvirt">New libvirt ticket</a></li></ul>
<h2>Linux Distribution specific bug reports</h2>
<ul><li>
If you are using official binaries from a <strong>Fedora distribution</strong>, enter
tickets against the <code>Fedora</code> product and the <code>libvirt</code>
component.
<ul><li><a href="">View Fedora libvirt tickets</a></li><li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=libvirt">New Fedora libvirt ticket</a></li></ul></li><li>
If you are using official binaries from <strong>Red Hat Enterprise Linux distribution</strong>,
tickets against the <code>Red Hat Enterprise Linux 5</code> product and
the <code>libvirt</code> component.
<ul><li><a href="">View Red Hat Enterprise Linux libvirt tickets</a></li><li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%205&amp;component=libvirt">New Red Hat Enterprise Linux libvirt ticket</a></li></ul></li><li>
If you are using official binaries from another Linux distribution first
follow their own bug reporting guidelines.
</li></ul>
<h2>How to file high quality bug reports</h2>
<p>
To increase the likelihood of your bug report being addressed it is
important to provide as much information as possible. When filing
libvirt bugs use this checklist to see if you are providing enough
information:
</p>
<ul><li>The version number of the libvirt build, or date of the CVS
checkout</li><li>The hardware architecture being used</li><li>The name of the hypervisor (Xen, QEMU, KVM)</li><li>The XML config of the guest domain if relevant</li><li>For Xen hypervisor, the XenD logfile from /var/log/xen</li><li>For QEMU/KVM, the domain logfile from /var/log/libvirt/qemu</li></ul>
<p>
If requesting a new feature attach any available patch to the ticket
and also email the patch to the libvirt mailing list for discussion
</p>
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<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
</body>
</html>

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<?xml version="1.0"?>
<html>
<body>
<h1>Bug reporting</h1>
<p>
The <a href="http://bugzilla.redhat.com">Red Hat Bugzilla Server</a>
should be used to report bugs and request features against libvirt.
Before submitting a ticket, check the existing tickets to see if
the bug/feature is already tracked.
</p>
<h2>General libvirt bug reports</h2>
<p>
If you are using official libvirt binaries from a Linux distribution
check below for distribution specific bug reporting policies first.
For general libvirt bug reports, from self-built releases, CVS snapshots
and any other non-distribution supported builds, enter tickets under
the <code>Virtualization Tools</code> product and the <code>libvirt</code>
component.
</p>
<ul>
<li><a href="">View libvirt tickets</a></li>
<li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Virtualization%20Tools&amp;component=libvirt">New libvirt ticket</a></li>
</ul>
<h2>Linux Distribution specific bug reports</h2>
<ul>
<li>
If you are using official binaries from a <strong>Fedora distribution</strong>, enter
tickets against the <code>Fedora</code> product and the <code>libvirt</code>
component.
<ul>
<li><a href="">View Fedora libvirt tickets</a></li>
<li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Fedora&amp;component=libvirt">New Fedora libvirt ticket</a></li>
</ul>
</li>
<li>
If you are using official binaries from <strong>Red Hat Enterprise Linux distribution</strong>,
tickets against the <code>Red Hat Enterprise Linux 5</code> product and
the <code>libvirt</code> component.
<ul>
<li><a href="">View Red Hat Enterprise Linux libvirt tickets</a></li>
<li><a href="http://bugzilla.redhat.com/bugzilla/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%205&amp;component=libvirt">New Red Hat Enterprise Linux libvirt ticket</a></li>
</ul>
</li>
<li>
If you are using official binaries from another Linux distribution first
follow their own bug reporting guidelines.
</li>
</ul>
<h2>How to file high quality bug reports</h2>
<p>
To increase the likelihood of your bug report being addressed it is
important to provide as much information as possible. When filing
libvirt bugs use this checklist to see if you are providing enough
information:
</p>
<ul>
<li>The version number of the libvirt build, or date of the CVS
checkout</li>
<li>The hardware architecture being used</li>
<li>The name of the hypervisor (Xen, QEMU, KVM)</li>
<li>The XML config of the guest domain if relevant</li>
<li>For Xen hypervisor, the XenD logfile from /var/log/xen</li>
<li>For QEMU/KVM, the domain logfile from /var/log/libvirt/qemu</li>
</ul>
<p>
If requesting a new feature attach any available patch to the ticket
and also email the patch to the libvirt mailing list for discussion
</p>
</body>
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<html xmlns="http://www.w3.org/1999/xhtml">
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<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
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<div id="headerLogo"></div>
<div id="headerSearch">
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
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<input id="submit" name="submit" type="submit" value="Search" />
</form>
</div>
</div>
<div id="body">
<div id="content">
<h1>Contacting the development team</h1>
<h2>Mailing list</h2>
<p>
There is a mailing-list <a href="mailto:libvir-list@redhat.com">libvir-list@redhat.com</a> for libvirt,
with an <a href="https://www.redhat.com/archives/libvir-list/">on-line archive</a>.
Please subscribe to this list before posting by visiting the
<a href="https://www.redhat.com/mailman/listinfo/libvir-list">associated Web</a>
page and follow the instructions. Patches with explanations and provided as
attachments are really appreciated and will be discussed on the mailing list.
If possible generate the patches by using <code>cvs diff -up</code> in a CVS
checkout.
</p>
<h2>IRC discussion</h2>
<p>
Some of the libvirt developers may be found on IRC on the <a href="http://oftc.net">OFTC IRC</a>
network. Use the settings:
</p>
<ul><li>server: irc.oftc.net</li><li>port: 6667 (the usual IRC port)</li><li>channel: #virt</li></ul>
<p>
NB There is no guarantee that someone will be watching or able to reply
promptly, so use the mailing-list if you don't get an answer on the IRC
channel.
</p>
</div>
<div id="menu">
<ul class="l0"><li>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</li><li>
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</li><li>
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</li><li>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</li></ul>
</div>
</div>
<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
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<?xml version="1.0"?>
<html>
<body>
<h1>Contacting the development team</h1>
<h2>Mailing list</h2>
<p>
There is a mailing-list <a href="mailto:libvir-list@redhat.com">libvir-list@redhat.com</a> for libvirt,
with an <a href="https://www.redhat.com/archives/libvir-list/">on-line archive</a>.
Please subscribe to this list before posting by visiting the
<a href="https://www.redhat.com/mailman/listinfo/libvir-list">associated Web</a>
page and follow the instructions. Patches with explanations and provided as
attachments are really appreciated and will be discussed on the mailing list.
If possible generate the patches by using <code>cvs diff -up</code> in a CVS
checkout.
</p>
<h2>IRC discussion</h2>
<p>
Some of the libvirt developers may be found on IRC on the <a href="http://oftc.net">OFTC IRC</a>
network. Use the settings:
</p>
<ul>
<li>server: irc.oftc.net</li>
<li>port: 6667 (the usual IRC port)</li>
<li>channel: #virt</li>
</ul>
<p>
NB There is no guarantee that someone will be watching or able to reply
promptly, so use the mailing-list if you don't get an answer on the IRC
channel.
</p>
</body>
</html>

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<?xml version="1.0" encoding="ISO-8859-1"?>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
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<link rel="SHORTCUT ICON" href="32favicon.png" />
<title>libvirt: Deployment</title>
<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
<div id="header">
<div id="headerLogo"></div>
<div id="headerSearch">
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</form>
</div>
</div>
<div id="body">
<div id="content">
<h1>Deployment</h1>
<h2>Pre-packaged releases</h2>
<p>
The libvirt API is now available in all major Linux distributions
so the simplest deployment approach is to use your distributions'
package management software to install the <code>libvirt</code>
module.
</p>
<h2>Self-built releases</h2>
<p>
libvirt uses GNU autotools for its build system, so deployment
follows the usual process of <code>configure; make ; make install</code>
</p>
<pre>
# ./configure --prefix=$HOME/usr
# make
# make install
</pre>
<h2>Built from CVS / GIT</h2>
<p>
When building from CVS it is neccessary to generate the autotools
support files. This requires having <code>autoconf</code>,
<code>automake</code>, <code>libtool</code> and <code>intltool</code>
installed. The process can be automated with the <code>autogen.sh</code>
script.
</p>
<pre>
# ./autogen.sh --prefix=$HOME/usr
# make
# make install
</pre>
</div>
<div id="menu">
<ul class="l0"><li>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</li><li>
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
</li><li>
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</li><li>
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<ul class="l1"><li>
<span class="active">Deployment</span>
<ul class="l2"><li>
<a title="The URI formats used for connecting to libvirt" class="inactive" href="uri.html">URI format</a>
</li><li>
<a title="Enable remote access over TCP" class="inactive" href="remote.html">Remote access</a>
</li><li>
<a title="Configure authentication for the libvirt daemon" class="inactive" href="auth.html">Authentication</a>
</li><li>
<a title="Access the libvirt daemon from a native Windows client" class="inactive" href="windows.html">Windows port</a>
</li></ul>
</li><li>
<a title="Overview of the logical subsystems in the libvirt API" class="inactive" href="intro.html">Architecture</a>
</li><li>
<a title="Description of the XML formats used in libvirt" class="inactive" href="format.html">XML format</a>
</li><li>
<a title="Hypervisor specific driver information" class="inactive" href="drivers.html">Drivers</a>
</li><li>
<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
</li><li>
<a title="Bindings of the libvirt API for other languages" class="inactive" href="bindings.html">Language bindings</a>
</li></ul>
</li><li>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</li><li>
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
</li><li>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</li><li>
<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
</li><li>
<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
</li><li>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</li></ul>
</div>
</div>
<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
</body>
</html>

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<html>
<body>
<h1>Deployment</h1>
<h2>Pre-packaged releases</h2>
<p>
The libvirt API is now available in all major Linux distributions
so the simplest deployment approach is to use your distributions'
package management software to install the <code>libvirt</code>
module.
</p>
<h2>Self-built releases</h2>
<p>
libvirt uses GNU autotools for its build system, so deployment
follows the usual process of <code>configure; make ; make install</code>
</p>
<pre>
# ./configure --prefix=$HOME/usr
# make
# make install
</pre>
<h2>Built from CVS / GIT</h2>
<p>
When building from CVS it is neccessary to generate the autotools
support files. This requires having <code>autoconf</code>,
<code>automake</code>, <code>libtool</code> and <code>intltool</code>
installed. The process can be automated with the <code>autogen.sh</code>
script.
</p>
<pre>
# ./autogen.sh --prefix=$HOME/usr
# make
# make install
</pre>
</body>
</html>

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<div id="content">
<h1>Documentation</h1>
</div>
<div id="menu">
<ul class="l0"><li>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</li><li>
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
</li><li>
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</li><li>
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</li><li>
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</li></ul>
</li><li>
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</li><li>
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</li><li>
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</li><li>
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</li><li>
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</li><li>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</li></ul>
</div>
</div>
<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
</body>
</html>

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<body>
<h1>Documentation</h1>
</body>
</html>

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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Downloads</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Downloads</h1><p>The latest versions of libvirt can be found on the <a href="ftp://libvirt.org/libvirt/">libvirt.org</a> server ( <a href="http://libvirt.org/sources/">HTTP</a>, <a href="ftp://libvirt.org/libvirt/">FTP</a>). You will find there the released
versions as well as <a href="http://libvirt.org/sources/libvirt-cvs-snapshot.tar.gz">snapshot
tarballs</a> updated from CVS head every hour</p><p>Anonymous <a href="http://ximbiot.com/cvs/cvshome/docs/">CVS</a> is also
available, first register onto the server:</p><p><code>cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs login</code></p><p>it will request a password, enter <strong>anoncvs</strong>. Then you can
checkout the development tree with:</p><p><code>cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs co
libvirt</code></p><p>Use ./autogen.sh to configure the local checkout, then <code>make</code>
and <code>make install</code>, as usual. All normal cvs commands are now
available except commiting to the base.</p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
<html xmlns="http://www.w3.org/1999/xhtml">
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<h1>Downloads</h1>
<h2>Official Releases</h2>
<p>
The latest versions of the libvirt C library can be downloaded from:
</p>
<ul><li><a href="ftp://libvirt.org/libvirt/">libvirt.org FTP server</a></li><li><a href="http://libvirt.org/sources/">libvirt.org HTTP server</a></li></ul>
<h2>Hourly development snapshots</h2>
<p>
Once an hour, an automated snapshot is made from the latest CVS server
source tree. These snapshots should be usable, but we make no guarentees
about their stability:
</p>
<ul><li><a href="ftp://libvirt.org/libvirt/libvirt-cvs-snapshot.tar.gz">libvirt.org FTP server</a></li><li><a href="http://libvirt.org/sources/libvirt-cvs-snapshot.tar.gz">libvirt.org HTTP server</a></li></ul>
<h2>CVS repository access</h2>
<p>
The master source repository uses <a href="http://ximbiot.com/cvs/cvshome/docs/">CVS</a>
and anonymous access is provided. Prior to accessing the server is it neccessary
to authenticate using the password <code>anoncvs</code>. This can be accomplished with the
<code>cvs login</code> command:
</p>
<pre>
# cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs login
</pre>
<p>
Once authenticated, a checkout can be obtained using
</p>
<pre>
# cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs co libvirt
</pre>
<p>
The libvirt build process uses GNU autotools, so after obtaining a checkout
it is neccessary to generate the configure script and Makefile.in templates
using the <code>autogen.sh</code> command. As an example, to do a complete
build and install it into your home directory run:
</p>
<pre>
./autogen.sh --prefix=$HOME/usr
make
make install
</pre>
<h2>GIT repository mirror</h2>
<p>
The CVS source repository is also mirrored using GIT, and is available
for anonymous access via:
</p>
<pre>
git clone git://git.et.redhat.com/libvirt.git
</pre>
<p>
It can also be browsed at
</p>
<pre>
<a href="http://git.et.redhat.com/?p=libvirt.git;a=summary">http://git.et.redhat.com/?p=libvirt.git;a=summary</a>
</pre>
</div>
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</dt><dd>
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<?xml version="1.0"?>
<html>
<body>
<h1 >Downloads</h1>
<h2>Official Releases</h2>
<p>
The latest versions of the libvirt C library can be downloaded from:
</p>
<ul>
<li><a href="ftp://libvirt.org/libvirt/">libvirt.org FTP server</a></li>
<li><a href="http://libvirt.org/sources/">libvirt.org HTTP server</a></li>
</ul>
<h2>Hourly development snapshots</h2>
<p>
Once an hour, an automated snapshot is made from the latest CVS server
source tree. These snapshots should be usable, but we make no guarentees
about their stability:
</p>
<ul>
<li><a href="ftp://libvirt.org/libvirt/libvirt-cvs-snapshot.tar.gz">libvirt.org FTP server</a></li>
<li><a href="http://libvirt.org/sources/libvirt-cvs-snapshot.tar.gz">libvirt.org HTTP server</a></li>
</ul>
<h2>CVS repository access</h2>
<p>
The master source repository uses <a href="http://ximbiot.com/cvs/cvshome/docs/">CVS</a>
and anonymous access is provided. Prior to accessing the server is it neccessary
to authenticate using the password <code>anoncvs</code>. This can be accomplished with the
<code>cvs login</code> command:
</p>
<pre>
# cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs login
</pre>
<p>
Once authenticated, a checkout can be obtained using
</p>
<pre>
# cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs co libvirt
</pre>
<p>
The libvirt build process uses GNU autotools, so after obtaining a checkout
it is neccessary to generate the configure script and Makefile.in templates
using the <code>autogen.sh</code> command. As an example, to do a complete
build and install it into your home directory run:
</p>
<pre>
./autogen.sh --prefix=$HOME/usr
make
make install
</pre>
<h2>GIT repository mirror</h2>
<p>
The CVS source repository is also mirrored using GIT, and is available
for anonymous access via:
</p>
<pre>
git clone git://git.et.redhat.com/libvirt.git
</pre>
<p>
It can also be browsed at
</p>
<pre>
<a href="http://git.et.redhat.com/?p=libvirt.git;a=summary">http://git.et.redhat.com/?p=libvirt.git;a=summary</a>
</pre>
</body>
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<h1>Internal drivers</h1>
<p>
The libvirt public API delegates its implementation to one or
more internal drivers, depending on the <a href="uri.html">connection URI</a>
passed when initializing the library. There is always a hypervisor driver
active, and if the libvirt daemon is available there will usually be a
network and storage driver active.
</p>
<h2>Hypervisor drivers</h2>
<p>
The hypervisor drivers currently supported by livirt are:
</p>
<ul><li><strong><a href="drvxen.html">Xen</a></strong></li><li><strong><a href="drvqemu.html">QEMU</a></strong></li><li><strong><a href="drvlxc.html">LXC</a></strong></li><li><strong><a href="drvtest.html">Test</a></strong></li><li><strong><a href="drvopenvz.html">OpenVZ</a></strong></li></ul>
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<ul class="l2"><li>
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</li><li>
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</li><li>
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</li><li>
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</li><li>
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</li><li>
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</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
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<html>
<body>
<h1>Internal drivers</h1>
<p>
The libvirt public API delegates its implementation to one or
more internal drivers, depending on the <a href="uri.html">connection URI</a>
passed when initializing the library. There is always a hypervisor driver
active, and if the libvirt daemon is available there will usually be a
network and storage driver active.
</p>
<h2>Hypervisor drivers</h2>
<p>
The hypervisor drivers currently supported by livirt are:
</p>
<ul>
<li><strong><a href="drvxen.html">Xen</a></strong></li>
<li><strong><a href="drvqemu.html">QEMU</a></strong></li>
<li><strong><a href="drvlxc.html">LXC</a></strong></li>
<li><strong><a href="drvtest.html">Test</a></strong></li>
<li><strong><a href="drvopenvz.html">OpenVZ</a></strong></li>
</ul>
</body>
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<h1>LXC container driver</h1>
</div>
<div id="menu">
<ul class="l0"><li>
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</li><li>
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</li><li>
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</li><li>
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</li><li>
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<ul class="l2"><li>
<a title="Driver the Xen hypervisor" class="inactive" href="drvxen.html">Xen</a>
</li><li>
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</li><li>
<span class="active">Linux Container</span>
</li><li>
<a title="Psuedo-driver simulating APIs in memory for test suites" class="inactive" href="drvtest.html">Test</a>
</li><li>
<a title="Driver providing secure remote to the libvirt APIs" class="inactive" href="drvremote.html">Remote</a>
</li><li>
<a title="Driver for the OpenVZ container technology" class="inactive" href="drvopenvz.html">OpenVZ</a>
</li><li>
<a title="Driver for the storage management APIs" class="inactive" href="storage.html">Storage</a>
</li></ul>
</li><li>
<a title="Reference manual for the C public API" class="inactive" href="html/index.html">API reference</a>
</li><li>
<a title="Bindings of the libvirt API for other languages" class="inactive" href="bindings.html">Language bindings</a>
</li></ul>
</li><li>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</li><li>
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
</li><li>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</li><li>
<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
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</li><li>
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</li></ul>
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</div>
<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
</body>
</html>

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<body>
<h1>LXC container driver</h1>
</body>
</html>

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<h1>QEMU/KVM hypervisor driver</h1>
<p>
The libvirt QEMU driver can manage any QEMU emulator from version 0.8.1
or later. It can also manage anything that provides the same QEMU command
line syntax and monitor interaction. This includes KVM, and Xenner.
</p>
<h2>Deployment pre-requisites</h2>
<ul><li>
<strong>QEMU emulators</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>qemu</code>, <code>qemu-system-x86_64</code>,
<code>qemu-system-mips</code>,<code>qemu-system-mipsel</code>,
<code>qemu-system-sparc</code>,<code>qemu-system-ppc</code>. The results
of this can be seen from the capabilities XML output.
</li><li>
<strong>KVM hypervisor</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>qemu-kvm</code> and <code>/dev/kvm</code> device
node. If both are found, then KVM fullyvirtualized, hardware accelerated
guests will be available.
</li><li>
<strong>Xenner hypervisor</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>xenner</code> and <code>/dev/kvm</code> device
node. If both are found, then Xen paravirtualized guests can be run using
the KVM hardware acceleration.
</li></ul>
<h2>
<a name="xmlconfig" id="xmlconfig">Example domain XML config</a>
</h2>
<h3>QEMU emulated guest on x86_64</h3>
<pre>&lt;domain type='qemu'&gt;
&lt;name&gt;QEmu-fedora-i686&lt;/name&gt;
&lt;uuid&gt;c7a5fdbd-cdaf-9455-926a-d65c16db1809&lt;/uuid&gt;
&lt;memory&gt;219200&lt;/memory&gt;
&lt;currentMemory&gt;219200&lt;/currentMemory&gt;
&lt;vcpu&gt;2&lt;/vcpu&gt;
&lt;os&gt;
&lt;type arch='i686' machine='pc'&gt;hvm&lt;/type&gt;
&lt;boot dev='cdrom'/&gt;
&lt;/os&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/bin/qemu-system-x86_64&lt;/emulator&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/home/user/boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/home/user/fedora.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source name='default'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>KVM hardware accelerated guest on i686</h3>
<pre>&lt;domain type='kvm'&gt;
&lt;name&gt;demo2&lt;/name&gt;
&lt;uuid&gt;4dea24b3-1d52-d8f3-2516-782e98a23fa0&lt;/uuid&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;os&gt;
&lt;type arch="i686"&gt;hvm&lt;/type&gt;
&lt;/os&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/bin/qemu-kvm&lt;/emulator&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/var/lib/libvirt/images/demo2.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;mac address='24:42:53:21:52:45'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Xen paravirtualized guests with hardware acceleration</h3>
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<h1>QEMU/KVM hypervisor driver</h1>
<p>
The libvirt QEMU driver can manage any QEMU emulator from version 0.8.1
or later. It can also manage anything that provides the same QEMU command
line syntax and monitor interaction. This includes KVM, and Xenner.
</p>
<h2>Deployment pre-requisites</h2>
<ul>
<li>
<strong>QEMU emulators</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>qemu</code>, <code>qemu-system-x86_64</code>,
<code>qemu-system-mips</code>,<code>qemu-system-mipsel</code>,
<code>qemu-system-sparc</code>,<code>qemu-system-ppc</code>. The results
of this can be seen from the capabilities XML output.
</li>
<li>
<strong>KVM hypervisor</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>qemu-kvm</code> and <code>/dev/kvm</code> device
node. If both are found, then KVM fullyvirtualized, hardware accelerated
guests will be available.
</li>
<li>
<strong>Xenner hypervisor</strong>: The driver will probe <code>/usr/bin</code>
for the presence of <code>xenner</code> and <code>/dev/kvm</code> device
node. If both are found, then Xen paravirtualized guests can be run using
the KVM hardware acceleration.
</li>
</ul>
<h2><a name="xmlconfig">Example domain XML config</a></h2>
<h3>QEMU emulated guest on x86_64</h3>
<pre>&lt;domain type='qemu'&gt;
&lt;name&gt;QEmu-fedora-i686&lt;/name&gt;
&lt;uuid&gt;c7a5fdbd-cdaf-9455-926a-d65c16db1809&lt;/uuid&gt;
&lt;memory&gt;219200&lt;/memory&gt;
&lt;currentMemory&gt;219200&lt;/currentMemory&gt;
&lt;vcpu&gt;2&lt;/vcpu&gt;
&lt;os&gt;
&lt;type arch='i686' machine='pc'&gt;hvm&lt;/type&gt;
&lt;boot dev='cdrom'/&gt;
&lt;/os&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/bin/qemu-system-x86_64&lt;/emulator&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/home/user/boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/home/user/fedora.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source name='default'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>KVM hardware accelerated guest on i686</h3>
<pre>&lt;domain type='kvm'&gt;
&lt;name&gt;demo2&lt;/name&gt;
&lt;uuid&gt;4dea24b3-1d52-d8f3-2516-782e98a23fa0&lt;/uuid&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;os&gt;
&lt;type arch="i686"&gt;hvm&lt;/type&gt;
&lt;/os&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/bin/qemu-kvm&lt;/emulator&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/var/lib/libvirt/images/demo2.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;mac address='24:42:53:21:52:45'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Xen paravirtualized guests with hardware acceleration</h3>
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<h1>Xen hypervisor driver</h1>
<p>
The libvirt Xen driver provides the ability to manage virtual machines
on any Xen release from 3.0.1 onwards.
</p>
<h2>Deployment pre-requisites</h2>
<p>
The libvirt Xen driver uses a combination of channels to manage Xen
virtual machines.
</p>
<ul><li>
<strong>XenD</strong>: Access to the Xen daemon is a mandatory
requirement for the libvirt Xen driver. It requires that the UNIX
socket interface be enabled in the <code>/etc/xen/xend-config.sxp</code>
configuration file. Specifically the config settings
<code>(xend-unix-server yes)</code>. This path is usually restricted
to only allow the <code>root</code> user access. As an alternative,
the HTTP interface can be used, however, this has significant security
implications.
</li><li>
<strong>XenStoreD</strong>: Access to the Xenstore daemon enables
more efficient codepaths for looking up domain information which
lowers the CPU overhead of management.
</li><li>
<strong>Hypercalls</strong>: The ability to make direct hypercalls
allows the most efficient codepaths in the driver to be used for
monitoring domain status.
</li><li>
<strong>XM config</strong>: When using Xen releases prior to 3.0.4,
there is no inactive domain management in XenD. For such releases,
libvirt will automatically process XM configuration files kept in
the <code>/etc/xen</code> directory. It is important not to place
any other non-config files in this directory.
</li></ul>
<h2>
<a name="xmlconfig" id="xmlconfig">Example domain XML config</a>
</h2>
<p>
Below are some example XML configurations for Xen guest domains.
For full details of the available options, consult the <a href="formatdomain.html">domain XML format</a>
guide.
</p>
<h3>Paravirtualized guest bootloader</h3>
<p>
Using a bootloader allows a paravirtualized guest to be booted using
a kernel stored inside its virtual disk image
</p>
<pre>&lt;domain type='xen' &gt;
&lt;name&gt;fc8&lt;/name&gt;
&lt;bootloader&gt;/usr/bin/pygrub&lt;/bootloader&gt;
&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;/os&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;
&lt;console tty='/dev/pts/5'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Paravirtualized guest direct kernel boot</h3>
<p>
For installation of paravirtualized guests it is typical to boot the
domain using a kernel and initrd stored in the host OS
</p>
<pre>&lt;domain type='xen' &gt;
&lt;name&gt;fc8&lt;/name&gt;
&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;kernel&gt;/var/lib/xen/install/vmlinuz-fedora8-x86_64&lt;/kernel&gt;
&lt;initrd&gt;/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64&lt;/initrd&gt;
&lt;cmdline&gt; kickstart=http://example.com/myguest.ks &lt;/cmdline&gt;
&lt;/os&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;console tty='/dev/pts/5'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Fullyvirtualized guest BIOS boot</h3>
<p>
Fullyvirtualized guests use the emulated BIOS to boot off the primary
harddisk, CDROM or Network PXE ROM.
</p>
<pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;boot dev='hd'/&gt;
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='floppy'&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target dev='fda'/&gt;
&lt;/disk&gt;
&lt;graphics type='vnc' port='5904'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Fullyvirtualized guest direct kernel boot</h3>
<p>
With Xen 3.2.0 or later it is possible to bypass the BIOS and directly
boot a Linux kernel and initrd as a fullyvirtualized domain. This allows
for complete automation of OS installation, for example using the Anaconda
kickstart support.
</p>
<pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;kernel&gt;/var/lib/xen/install/vmlinuz-fedora8-x86_64&lt;/kernel&gt;
&lt;initrd&gt;/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64&lt;/initrd&gt;
&lt;cmdline&gt; kickstart=http://example.com/myguest.ks &lt;/cmdline&gt;
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='floppy'&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target dev='fda'/&gt;
&lt;/disk&gt;
&lt;graphics type='vnc' port='5904'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
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<body>
<h1>Xen hypervisor driver</h1>
<p>
The libvirt Xen driver provides the ability to manage virtual machines
on any Xen release from 3.0.1 onwards.
</p>
<h2>Deployment pre-requisites</h2>
<p>
The libvirt Xen driver uses a combination of channels to manage Xen
virtual machines.
</p>
<ul>
<li>
<strong>XenD</strong>: Access to the Xen daemon is a mandatory
requirement for the libvirt Xen driver. It requires that the UNIX
socket interface be enabled in the <code>/etc/xen/xend-config.sxp</code>
configuration file. Specifically the config settings
<code>(xend-unix-server yes)</code>. This path is usually restricted
to only allow the <code>root</code> user access. As an alternative,
the HTTP interface can be used, however, this has significant security
implications.
</li>
<li>
<strong>XenStoreD</strong>: Access to the Xenstore daemon enables
more efficient codepaths for looking up domain information which
lowers the CPU overhead of management.
</li>
<li>
<strong>Hypercalls</strong>: The ability to make direct hypercalls
allows the most efficient codepaths in the driver to be used for
monitoring domain status.
</li>
<li>
<strong>XM config</strong>: When using Xen releases prior to 3.0.4,
there is no inactive domain management in XenD. For such releases,
libvirt will automatically process XM configuration files kept in
the <code>/etc/xen</code> directory. It is important not to place
any other non-config files in this directory.
</li>
</ul>
<h2><a name="xmlconfig">Example domain XML config</a></h2>
<p>
Below are some example XML configurations for Xen guest domains.
For full details of the available options, consult the <a href="formatdomain.html">domain XML format</a>
guide.
</p>
<h3>Paravirtualized guest bootloader</h3>
<p>
Using a bootloader allows a paravirtualized guest to be booted using
a kernel stored inside its virtual disk image
</p>
<pre>&lt;domain type='xen' &gt;
&lt;name&gt;fc8&lt;/name&gt;
&lt;bootloader&gt;/usr/bin/pygrub&lt;/bootloader&gt;
&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;/os&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;
&lt;console tty='/dev/pts/5'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Paravirtualized guest direct kernel boot</h3>
<p>
For installation of paravirtualized guests it is typical to boot the
domain using a kernel and initrd stored in the host OS
</p>
<pre>&lt;domain type='xen' &gt;
&lt;name&gt;fc8&lt;/name&gt;
&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;kernel&gt;/var/lib/xen/install/vmlinuz-fedora8-x86_64&lt;/kernel&gt;
&lt;initrd&gt;/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64&lt;/initrd&gt;
&lt;cmdline&gt; kickstart=http://example.com/myguest.ks &lt;/cmdline&gt;
&lt;/os&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;console tty='/dev/pts/5'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Fullyvirtualized guest BIOS boot</h3>
<p>
Fullyvirtualized guests use the emulated BIOS to boot off the primary
harddisk, CDROM or Network PXE ROM.
</p>
<pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;boot dev='hd'/&gt;
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='floppy'&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target dev='fda'/&gt;
&lt;/disk&gt;
&lt;graphics type='vnc' port='5904'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
<h3>Fullyvirtualized guest direct kernel boot</h3>
<p>
With Xen 3.2.0 or later it is possible to bypass the BIOS and directly
boot a Linux kernel and initrd as a fullyvirtualized domain. This allows
for complete automation of OS installation, for example using the Anaconda
kickstart support.
</p>
<pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;kernel&gt;/var/lib/xen/install/vmlinuz-fedora8-x86_64&lt;/kernel&gt;
&lt;initrd&gt;/var/lib/xen/install/initrd-vmlinuz-fedora8-x86_64&lt;/initrd&gt;
&lt;cmdline&gt; kickstart=http://example.com/myguest.ks &lt;/cmdline&gt;
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;
&lt;/features&gt;
&lt;clock sync="localtime"/&gt;
&lt;devices&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/var/lib/xen/images/fv0'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/var/lib/xen/images/fc5-x86_64-boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='floppy'&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target dev='fda'/&gt;
&lt;/disk&gt;
&lt;graphics type='vnc' port='5904'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Handling of errors</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Handling of errors</h1><p>The main goals of libvirt when it comes to error handling are:</p><ul><li>provide as much detail as possible</li>
<li>provide the information as soon as possible</li>
<li>dont force the library user into one style of error handling</li>
</ul><p>As result the library provide both synchronous, callback based and
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<h1>Handling of errors</h1>
<p>The main goals of libvirt when it comes to error handling are:</p>
<ul><li>provide as much detail as possible</li><li>provide the information as soon as possible</li><li>dont force the library user into one style of error handling</li></ul>
<p>As result the library provide both synchronous, callback based and
asynchronous error reporting. When an error happens in the library code the
error is logged, allowing to retrieve it later and if the user registered an
error callback it will be called synchronously. Once the call to libvirt ends
the error can be detected by the return value and the full information for
the last logged error can be retrieved.</p><p>To avoid as much as possible troubles with a global variable in a
the last logged error can be retrieved.</p>
<p>To avoid as much as possible troubles with a global variable in a
multithreaded environment, libvirt will associate when possible the errors to
the current connection they are related to, that way the error is stored in a
dynamic structure which can be made thread specific. Error callback can be
set specifically to a connection with</p><p>So error handling in the code is the following:</p><ol><li>if the error can be associated to a connection for example when failing
set specifically to a connection with</p>
<p>So error handling in the code is the following:</p>
<ol><li>if the error can be associated to a connection for example when failing
to look up a domain
<ol><li>if there is a callback associated to the connection set with <a href="html/libvirt-virterror.html#virConnSetErrorFunc">virConnSetErrorFunc</a>,
call it with the error information</li>
<li>otherwise if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li>
<li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
call it with the error information</li><li>otherwise if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li><li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
which is the default error function of the library issuing the error
on stderr</li>
<li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virConnGetLastError">virConnGetLastError</a></li>
</ol></li>
<li>otherwise like when failing to create an hypervisor connection:
on stderr</li><li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virConnGetLastError">virConnGetLastError</a></li></ol></li><li>otherwise like when failing to create an hypervisor connection:
<ol><li>if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li>
<li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
call it with the error information</li><li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
which is the default error function of the library issuing the error
on stderr</li>
<li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virGetLastError">virGetLastError</a></li>
</ol></li>
</ol><p>In all cases the error information is provided as a <a href="html/libvirt-virterror.html#virErrorPtr">virErrorPtr</a> pointer to
on stderr</li><li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virGetLastError">virGetLastError</a></li></ol></li></ol>
<p>In all cases the error information is provided as a <a href="html/libvirt-virterror.html#virErrorPtr">virErrorPtr</a> pointer to
read-only structure <a href="html/libvirt-virterror.html#virError">virError</a> containing the
following fields:</p><ul><li>code: an error number from the <a href="html/libvirt-virterror.html#virErrorNumber">virErrorNumber</a>
enum</li>
<li>domain: an enum indicating which part of libvirt raised the error see
<a href="html/libvirt-virterror.html#virErrorDomain">virErrorDomain</a></li>
<li>level: the error level, usually VIR_ERR_ERROR, though there is room for
warnings like VIR_ERR_WARNING</li>
<li>message: the full human-readable formatted string of the error</li>
<li>conn: if available a pointer to the <a href="html/libvirt-libvirt.html#virConnectPtr">virConnectPtr</a>
connection to the hypervisor where this happened</li>
<li>dom: if available a pointer to the <a href="html/libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain
targeted in the operation</li>
</ul><p>and then extra raw information about the error which may be initialized
to 0 or NULL if unused</p><ul><li>str1, str2, str3: string information, usually str1 is the error
message format</li>
<li>int1, int2: integer information</li>
</ul><p>So usually, setting up specific error handling with libvirt consist of
following fields:</p>
<ul><li>code: an error number from the <a href="html/libvirt-virterror.html#virErrorNumber">virErrorNumber</a>
enum</li><li>domain: an enum indicating which part of libvirt raised the error see
<a href="html/libvirt-virterror.html#virErrorDomain">virErrorDomain</a></li><li>level: the error level, usually VIR_ERR_ERROR, though there is room for
warnings like VIR_ERR_WARNING</li><li>message: the full human-readable formatted string of the error</li><li>conn: if available a pointer to the <a href="html/libvirt-libvirt.html#virConnectPtr">virConnectPtr</a>
connection to the hypervisor where this happened</li><li>dom: if available a pointer to the <a href="html/libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain
targeted in the operation</li></ul>
<p>and then extra raw information about the error which may be initialized
to 0 or NULL if unused</p>
<ul><li>str1, str2, str3: string information, usually str1 is the error
message format</li><li>int1, int2: integer information</li></ul>
<p>So usually, setting up specific error handling with libvirt consist of
registering an handler with with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a> or
with <a href="html/libvirt-virterror.html#virConnSetErrorFunc">virConnSetErrorFunc</a>,
check the value of the code value, take appropriate action, if needed let
@ -57,13 +72,74 @@ For asynchronous error handing, set such a function doing nothing to avoid
the error being reported on stderr, and call virConnGetLastError or
virGetLastError when an API call returned an error value. It can be a good
idea to use <a href="html/libvirt-virterror.html#virResetLastError">virResetError</a> or <a href="html/libvirt-virterror.html#virConnResetLastError">virConnResetLastError</a>
once an error has been processed fully.</p><p>At the python level, there only a global reporting callback function at
this point, see the error.py example about it:</p><pre>def handler(ctxt, err):
once an error has been processed fully.</p>
<p>At the python level, there only a global reporting callback function at
this point, see the error.py example about it:</p>
<pre>def handler(ctxt, err):
global errno
#print "handler(%s, %s)" % (ctxt, err)
errno = err
libvirt.registerErrorHandler(handler, 'context') </pre><p>the second argument to the registerErrorHandler function is passed as the
libvirt.registerErrorHandler(handler, 'context') </pre>
<p>the second argument to the registerErrorHandler function is passed as the
first argument of the callback like in the C version. The error is a tuple
containing the same field as a virError in C, but cast to Python.</p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
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<body>
<h1 >Handling of errors</h1>
<p>The main goals of libvirt when it comes to error handling are:</p>
<ul>
<li>provide as much detail as possible</li>
<li>provide the information as soon as possible</li>
<li>dont force the library user into one style of error handling</li>
</ul>
<p>As result the library provide both synchronous, callback based and
asynchronous error reporting. When an error happens in the library code the
error is logged, allowing to retrieve it later and if the user registered an
error callback it will be called synchronously. Once the call to libvirt ends
the error can be detected by the return value and the full information for
the last logged error can be retrieved.</p>
<p>To avoid as much as possible troubles with a global variable in a
multithreaded environment, libvirt will associate when possible the errors to
the current connection they are related to, that way the error is stored in a
dynamic structure which can be made thread specific. Error callback can be
set specifically to a connection with</p>
<p>So error handling in the code is the following:</p>
<ol>
<li>if the error can be associated to a connection for example when failing
to look up a domain
<ol><li>if there is a callback associated to the connection set with <a href="html/libvirt-virterror.html#virConnSetErrorFunc">virConnSetErrorFunc</a>,
call it with the error information</li><li>otherwise if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li><li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
which is the default error function of the library issuing the error
on stderr</li><li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virConnGetLastError">virConnGetLastError</a></li></ol></li>
<li>otherwise like when failing to create an hypervisor connection:
<ol><li>if there is a global callback set with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a>,
call it with the error information</li><li>otherwise call <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>
which is the default error function of the library issuing the error
on stderr</li><li>save the error in the connection for later retrieval with <a href="html/libvirt-virterror.html#virGetLastError">virGetLastError</a></li></ol></li>
</ol>
<p>In all cases the error information is provided as a <a href="html/libvirt-virterror.html#virErrorPtr">virErrorPtr</a> pointer to
read-only structure <a href="html/libvirt-virterror.html#virError">virError</a> containing the
following fields:</p>
<ul>
<li>code: an error number from the <a href="html/libvirt-virterror.html#virErrorNumber">virErrorNumber</a>
enum</li>
<li>domain: an enum indicating which part of libvirt raised the error see
<a href="html/libvirt-virterror.html#virErrorDomain">virErrorDomain</a></li>
<li>level: the error level, usually VIR_ERR_ERROR, though there is room for
warnings like VIR_ERR_WARNING</li>
<li>message: the full human-readable formatted string of the error</li>
<li>conn: if available a pointer to the <a href="html/libvirt-libvirt.html#virConnectPtr">virConnectPtr</a>
connection to the hypervisor where this happened</li>
<li>dom: if available a pointer to the <a href="html/libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain
targeted in the operation</li>
</ul>
<p>and then extra raw information about the error which may be initialized
to 0 or NULL if unused</p>
<ul>
<li>str1, str2, str3: string information, usually str1 is the error
message format</li>
<li>int1, int2: integer information</li>
</ul>
<p>So usually, setting up specific error handling with libvirt consist of
registering an handler with with <a href="html/libvirt-virterror.html#virSetErrorFunc">virSetErrorFunc</a> or
with <a href="html/libvirt-virterror.html#virConnSetErrorFunc">virConnSetErrorFunc</a>,
check the value of the code value, take appropriate action, if needed let
libvirt print the error on stderr by calling <a href="html/libvirt-virterror.html#virDefaultErrorFunc">virDefaultErrorFunc</a>.
For asynchronous error handing, set such a function doing nothing to avoid
the error being reported on stderr, and call virConnGetLastError or
virGetLastError when an API call returned an error value. It can be a good
idea to use <a href="html/libvirt-virterror.html#virResetLastError">virResetError</a> or <a href="html/libvirt-virterror.html#virConnResetLastError">virConnResetLastError</a>
once an error has been processed fully.</p>
<p>At the python level, there only a global reporting callback function at
this point, see the error.py example about it:</p>
<pre>def handler(ctxt, err):
global errno
#print "handler(%s, %s)" % (ctxt, err)
errno = err
libvirt.registerErrorHandler(handler, 'context') </pre>
<p>the second argument to the registerErrorHandler function is passed as the
first argument of the callback like in the C version. The error is a tuple
containing the same field as a virError in C, but cast to Python.</p>
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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>XML Format</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">XML Format</h1><p>This section describes the XML format used to represent domains, there are
variations on the format based on the kind of domains run and the options
used to launch them:</p><ul><li><a href="#Normal1">Normal paravirtualized Xen domains</a></li>
<li><a href="#Fully1">Fully virtualized Xen domains</a></li>
<li><a href="#KVM1">KVM domains</a></li>
<li><a href="#Net1">Networking options for QEmu and KVM</a></li>
<li><a href="#QEmu1">QEmu domains</a></li>
<li><a href="#Capa1">Discovering virtualization capabilities</a></li>
</ul><p>The formats try as much as possible to follow the same structure and reuse
elements and attributes where it makes sense.</p><h3 id="Normal"><a name="Normal1" id="Normal1">Normal paravirtualized Xen
guests</a>:</h3><p>The library use an XML format to describe domains, as input to <a href="html/libvirt-libvirt.html#virDomainCreateLinux">virDomainCreateLinux()</a>
and as the output of <a href="html/libvirt-libvirt.html#virDomainGetXMLDesc">virDomainGetXMLDesc()</a>,
the following is an example of the format as returned by the shell command
<code>virsh xmldump fc4</code> , where fc4 was one of the running domains:</p><pre>&lt;domain type='xen' <span style="color: #0071FF; background-color: #FFFFFF">id='18'</span>&gt;
&lt;name&gt;fc4&lt;/name&gt;
<span style="color: #00B200; background-color: #FFFFFF">&lt;os&gt;
&lt;type&gt;linux&lt;/type&gt;
&lt;kernel&gt;/boot/vmlinuz-2.6.15-1.43_FC5guest&lt;/kernel&gt;
&lt;initrd&gt;/boot/initrd-2.6.15-1.43_FC5guest.img&lt;/initrd&gt;
&lt;root&gt;/dev/sda1&lt;/root&gt;
&lt;cmdline&gt; ro selinux=0 3&lt;/cmdline&gt;
&lt;/os&gt;</span>
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;devices&gt;
<span style="color: #FF0080; background-color: #FFFFFF">&lt;disk type='file'&gt;
&lt;source file='/u/fc4.img'/&gt;
&lt;target dev='sda1'/&gt;
&lt;/disk&gt;</span>
<span style="color: #0000FF; background-color: #FFFFFF">&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='</span><span style="color: #0000FF; background-color: #FFFFFF"></span><span style="color: #0000FF; background-color: #FFFFFF">aa:00:00:00:00:11'/&gt;
&lt;script path='/etc/xen/scripts/vif-bridge'/&gt;
&lt;/interface&gt;</span>
<span style="color: #FF8000; background-color: #FFFFFF">&lt;console tty='/dev/pts/5'/&gt;</span>
&lt;/devices&gt;
&lt;/domain&gt;</pre><p>The root element must be called <code>domain</code> with no namespace, the
<code>type</code> attribute indicates the kind of hypervisor used, 'xen' is
the default value. The <code>id</code> attribute gives the domain id at
runtime (not however that this may change, for example if the domain is saved
to disk and restored). The domain has a few children whose order is not
significant:</p><ul><li>name: the domain name, preferably ASCII based</li>
<li>memory: the maximum memory allocated to the domain in kilobytes</li>
<li>vcpu: the number of virtual cpu configured for the domain</li>
<li>os: a block describing the Operating System, its content will be
dependent on the OS type
<ul><li>type: indicate the OS type, always linux at this point</li>
<li>kernel: path to the kernel on the Domain 0 filesystem</li>
<li>initrd: an optional path for the init ramdisk on the Domain 0
filesystem</li>
<li>cmdline: optional command line to the kernel</li>
<li>root: the root filesystem from the guest viewpoint, it may be
passed as part of the cmdline content too</li>
</ul></li>
<li>devices: a list of <code>disk</code>, <code>interface</code> and
<code>console</code> descriptions in no special order</li>
</ul><p>The format of the devices and their type may grow over time, but the
following should be sufficient for basic use:</p><p>A <code>disk</code> device indicates a block device, it can have two
values for the type attribute either 'file' or 'block' corresponding to the 2
options available at the Xen layer. It has two mandatory children, and one
optional one in no specific order:</p><ul><li>source with a file attribute containing the path in Domain 0 to the
file or a dev attribute if using a block device, containing the device
name ('hda5' or '/dev/hda5')</li>
<li>target indicates in a dev attribute the device where it is mapped in
the guest</li>
<li>readonly an optional empty element indicating the device is
read-only</li>
<li>shareable an optional empty element indicating the device
can be used read/write with other domains</li>
</ul><p>An <code>interface</code> element describes a network device mapped on the
guest, it also has a type whose value is currently 'bridge', it also have a
number of children in no specific order:</p><ul><li>source: indicating the bridge name</li>
<li>mac: the optional mac address provided in the address attribute</li>
<li>ip: the optional IP address provided in the address attribute</li>
<li>script: the script used to bridge the interface in the Domain 0</li>
<li>target: and optional target indicating the device name.</li>
</ul><p>A <code>console</code> element describes a serial console connection to
the guest. It has no children, and a single attribute <code>tty</code> which
provides the path to the Pseudo TTY on which the guest console can be
accessed</p><p>Life cycle actions for the domain can also be expressed in the XML format,
they drive what should be happening if the domain crashes, is rebooted or is
poweroff. There is various actions possible when this happen:</p><ul><li>destroy: The domain is cleaned up (that's the default normal processing
in Xen)</li>
<li>restart: A new domain is started in place of the old one with the same
configuration parameters</li>
<li>preserve: The domain will remain in memory until it is destroyed
manually, it won't be running but allows for post-mortem debugging</li>
<li>rename-restart: a variant of the previous one but where the old domain
is renamed before being saved to allow a restart</li>
</ul><p>The following could be used for a Xen production system:</p><pre>&lt;domain&gt;
...
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_crash&gt;rename-restart&lt;/on_crash&gt;
...
&lt;/domain&gt;</pre><p>While the format may be extended in various ways as support for more
hypervisor types and features are added, it is expected that this core subset
will remain functional in spite of the evolution of the library.</p><h3 id="Fully"><a name="Fully1" id="Fully1">Fully virtualized guests</a>
(added in 0.1.3):</h3><p>Here is an example of a domain description used to start a fully
virtualized (a.k.a. HVM) Xen domain. This requires hardware virtualization
support at the processor level but allows to run unmodified operating
systems:</p><pre>&lt;domain type='xen' id='3'&gt;
&lt;name&gt;fv0&lt;/name&gt;
&lt;uuid&gt;4dea22b31d52d8f32516782e98ab3fa0&lt;/uuid&gt;
&lt;os&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;type&gt;hvm&lt;/type&gt;</span>
<span style="color: #0000E5; background-color: #FFFFFF">&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;</span>
<span style="color: #0000E5; background-color: #FFFFFF">&lt;boot dev='hd'/&gt;</span>
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
<span style="color: #E50000; background-color: #FFFFFF">&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;</span>
&lt;/features&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;clock sync="localtime"/&gt;</span>
&lt;devices&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;</span>
&lt;interface type='bridge'&gt;
&lt;source bridge='xenbr0'/&gt;
&lt;mac address='00:16:3e:5d:c7:9e'/&gt;
&lt;script path='vif-bridge'/&gt;
&lt;/interface&gt;
&lt;disk type='file'&gt;
&lt;source file='/root/fv0'/&gt;
&lt;target <span style="color: #0000E5; background-color: #FFFFFF">dev='hda'</span>/&gt;
&lt;/disk&gt;
&lt;disk type='file' <span style="color: #0000E5; background-color: #FFFFFF">device='cdrom'</span>&gt;
&lt;source file='/root/fc5-x86_64-boot.iso'/&gt;
&lt;target <span style="color: #0000E5; background-color: #FFFFFF">dev='hdc'</span>/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' <span style="color: #0000E5; background-color: #FFFFFF">device='floppy'</span>&gt;
&lt;source file='/root/fd.img'/&gt;
&lt;target <span style="color: #0000E5; background-color: #FFFFFF">dev='fda'</span>/&gt;
&lt;/disk&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;graphics type='vnc' port='5904'/&gt;</span>
&lt;/devices&gt;
&lt;/domain&gt;</pre><p>There is a few things to notice specifically for HVM domains:</p><ul><li>the optional <code>&lt;features&gt;</code> block is used to enable
certain guest CPU / system features. For HVM guests the following
features are defined:
<ul><li><code>pae</code> - enable PAE memory addressing</li>
<li><code>apic</code> - enable IO APIC</li>
<li><code>acpi</code> - enable ACPI bios</li>
</ul></li>
<li>the optional <code>&lt;clock&gt;</code> element is used to specify
whether the emulated BIOS clock in the guest is synced to either
<code>localtime</code> or <code>utc</code>. In general Windows will
want <code>localtime</code> while all other operating systems will
want <code>utc</code>. The default is thus <code>utc</code></li>
<li>the <code>&lt;os&gt;</code> block description is very different, first
it indicates that the type is 'hvm' for hardware virtualization, then
instead of a kernel, boot and command line arguments, it points to an os
boot loader which will extract the boot information from the boot device
specified in a separate boot element. The <code>dev</code> attribute on
the <code>boot</code> tag can be one of:
<ul><li><code>fd</code> - boot from first floppy device</li>
<li><code>hd</code> - boot from first harddisk device</li>
<li><code>cdrom</code> - boot from first cdrom device</li>
</ul></li>
<li>the <code>&lt;devices&gt;</code> section includes an emulator entry
pointing to an additional program in charge of emulating the devices</li>
<li>the disk entry indicates in the dev target section that the emulation
for the drive is the first IDE disk device hda. The list of device names
supported is dependent on the Hypervisor, but for Xen it can be any IDE
device <code>hda</code>-<code>hdd</code>, or a floppy device
<code>fda</code>, <code>fdb</code>. The <code>&lt;disk&gt;</code> element
also supports a 'device' attribute to indicate what kinda of hardware to
emulate. The following values are supported:
<ul><li><code>floppy</code> - a floppy disk controller</li>
<li><code>disk</code> - a generic hard drive (the default it
omitted)</li>
<li><code>cdrom</code> - a CDROM device</li>
</ul>
For Xen 3.0.2 and earlier a CDROM device can only be emulated on the
<code>hdc</code> channel, while for 3.0.3 and later, it can be emulated
on any IDE channel.</li>
<li>the <code>&lt;devices&gt;</code> section also include at least one
entry for the graphic device used to render the os. Currently there is
just 2 types possible 'vnc' or 'sdl'. If the type is 'vnc', then an
additional <code>port</code> attribute will be present indicating the TCP
port on which the VNC server is accepting client connections.</li>
</ul><p>It is likely that the HVM description gets additional optional elements
and attributes as the support for fully virtualized domain expands,
especially for the variety of devices emulated and the graphic support
options offered.</p><h3><a name="KVM1" id="KVM1">KVM domain (added in 0.2.0)</a></h3><p>Support for the <a href="http://kvm.qumranet.com/">KVM virtualization</a>
is provided in recent Linux kernels (2.6.20 and onward). This requires
specific hardware with acceleration support and the availability of the
special version of the <a href="http://fabrice.bellard.free.fr/qemu/">QEmu</a> binary. Since this
relies on QEmu for the machine emulation like fully virtualized guests the
XML description is quite similar, here is a simple example:</p><pre>&lt;domain <span style="color: #FF0000; background-color: #FFFFFF">type='kvm'</span>&gt;
&lt;name&gt;demo2&lt;/name&gt;
&lt;uuid&gt;4dea24b3-1d52-d8f3-2516-782e98a23fa0&lt;/uuid&gt;
&lt;memory&gt;131072&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;os&gt;
&lt;type&gt;hvm&lt;/type&gt;
&lt;/os&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;clock sync="localtime"/&gt;</span>
&lt;devices&gt;
<span style="color: #FF0000; background-color: #FFFFFF">&lt;emulator&gt;/home/user/usr/kvm-devel/bin/qemu-system-x86_64&lt;/emulator&gt;</span>
&lt;disk type='file' device='disk'&gt;
&lt;source file='/home/user/fedora/diskboot.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface <span style="color: #FF0000; background-color: #FFFFFF">type='user'</span>&gt;
&lt;mac address='24:42:53:21:52:45'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre><p>The specific points to note if using KVM are:</p><ul><li>the top level domain element carries a type of 'kvm'</li>
<li>the &lt;clock&gt; optional is supported as with Xen HVM</li>
<li>the &lt;devices&gt; emulator points to the special qemu binary required
for KVM</li>
<li>networking interface definitions definitions are somewhat different due
to a different model from Xen see below</li>
</ul><p>except those points the options should be quite similar to Xen HVM
ones.</p><h3><a name="Net1" id="Net1">Networking options for QEmu and KVM (added in 0.2.0)</a></h3><p>The networking support in the QEmu and KVM case is more flexible, and
support a variety of options:</p><ol><li>Userspace SLIRP stack
<p>Provides a virtual LAN with NAT to the outside world. The virtual
network has DHCP &amp; DNS services and will give the guest VM addresses
starting from <code>10.0.2.15</code>. The default router will be
<code>10.0.2.2</code> and the DNS server will be <code>10.0.2.3</code>.
This networking is the only option for unprivileged users who need their
VMs to have outgoing access. Example configs are:</p>
<pre>&lt;interface type='user'/&gt;</pre>
<pre>
&lt;interface type='user'&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
</pre>
</li>
<li>Virtual network
<p>Provides a virtual network using a bridge device in the host.
Depending on the virtual network configuration, the network may be
totally isolated, NAT'ing to an explicit network device, or NAT'ing to
the default route. DHCP and DNS are provided on the virtual network in
all cases and the IP range can be determined by examining the virtual
network config with '<code>virsh net-dumpxml &lt;network
name&gt;</code>'. There is one virtual network called 'default' setup out
of the box which does NAT'ing to the default route and has an IP range of
<code>192.168.22.0/255.255.255.0</code>. Each guest will have an
associated tun device created with a name of vnetN, which can also be
overridden with the &lt;target&gt; element. Example configs are:</p>
<pre>&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;/interface&gt;
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
</pre>
</li>
<li>Bridge to to LAN
<p>Provides a bridge from the VM directly onto the LAN. This assumes
there is a bridge device on the host which has one or more of the hosts
physical NICs enslaved. The guest VM will have an associated tun device
created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. The tun device will be enslaved to the bridge.
The IP range / network configuration is whatever is used on the LAN. This
provides the guest VM full incoming &amp; outgoing net access just like a
physical machine. Examples include:</p>
<pre>&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;/interface&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;</pre>
</li>
<li>Generic connection to LAN
<p>Provides a means for the administrator to execute an arbitrary script
to connect the guest's network to the LAN. The guest will have a tun
device created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. After creating the tun device a shell script will
be run which is expected to do whatever host network integration is
required. By default this script is called /etc/qemu-ifup but can be
overridden.</p>
<pre>&lt;interface type='ethernet'/&gt;
&lt;interface type='ethernet'&gt;
&lt;target dev='vnet7'/&gt;
&lt;script path='/etc/qemu-ifup-mynet'/&gt;
&lt;/interface&gt;</pre>
</li>
<li>Multicast tunnel
<p>A multicast group is setup to represent a virtual network. Any VMs
whose network devices are in the same multicast group can talk to each
other even across hosts. This mode is also available to unprivileged
users. There is no default DNS or DHCP support and no outgoing network
access. To provide outgoing network access, one of the VMs should have a
2nd NIC which is connected to one of the first 4 network types and do the
appropriate routing. The multicast protocol is compatible with that used
by user mode linux guests too. The source address used must be from the
multicast address block.</p>
<pre>&lt;interface type='mcast'&gt;
&lt;source address='230.0.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
</li>
<li>TCP tunnel
<p>A TCP client/server architecture provides a virtual network. One VM
provides the server end of the network, all other VMS are configured as
clients. All network traffic is routed between the VMs via the server.
This mode is also available to unprivileged users. There is no default
DNS or DHCP support and no outgoing network access. To provide outgoing
network access, one of the VMs should have a 2nd NIC which is connected
to one of the first 4 network types and do the appropriate routing.</p>
<p>Example server config:</p>
<pre>&lt;interface type='server'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
<p>Example client config:</p>
<pre>&lt;interface type='client'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
</li>
</ol><p>To be noted, options 2, 3, 4 are also supported by Xen VMs, so it is
possible to use these configs to have networking with both Xen &amp;
QEMU/KVMs connected to each other.</p><h3>Q<a name="QEmu1" id="QEmu1">Emu domain (added in 0.2.0)</a></h3><p>Libvirt support for KVM and QEmu is the same code base with only minor
changes. The configuration is as a result nearly identical, the only changes
are related to QEmu ability to emulate <a href="http://www.qemu.org/status.html">various CPU type and hardware
platforms</a>, and kqemu support (QEmu own kernel accelerator when the
emulated CPU is i686 as well as the target machine):</p><pre>&lt;domain <span style="color: #FF0000; background-color: #FFFFFF">type='qemu'</span>&gt;
&lt;name&gt;QEmu-fedora-i686&lt;/name&gt;
&lt;uuid&gt;c7a5fdbd-cdaf-9455-926a-d65c16db1809&lt;/uuid&gt;
&lt;memory&gt;219200&lt;/memory&gt;
&lt;currentMemory&gt;219200&lt;/currentMemory&gt;
&lt;vcpu&gt;2&lt;/vcpu&gt;
&lt;os&gt;
<span style="color: #FF0000; background-color: #FFFFFF">&lt;type arch='i686' machine='pc'&gt;hvm&lt;/type&gt;</span>
&lt;boot dev='cdrom'/&gt;
&lt;/os&gt;
&lt;devices&gt;
<span style="color: #FF0000; background-color: #FFFFFF">&lt;emulator&gt;/usr/bin/qemu&lt;/emulator&gt;</span>
&lt;disk type='file' device='cdrom'&gt;
&lt;source file='/home/user/boot.iso'/&gt;
&lt;target dev='hdc'/&gt;
&lt;readonly/&gt;
&lt;/disk&gt;
&lt;disk type='file' device='disk'&gt;
&lt;source file='/home/user/fedora.img'/&gt;
&lt;target dev='hda'/&gt;
&lt;/disk&gt;
&lt;interface type='network'&gt;
&lt;source name='default'/&gt;
&lt;/interface&gt;
&lt;graphics type='vnc' port='-1'/&gt;
&lt;/devices&gt;
&lt;/domain&gt;</pre><p>The difference here are:</p><ul><li>the value of type on top-level domain, it's 'qemu' or kqemu if asking
for <a href="http://www.qemu.org/kqemu-tech.html">kernel assisted
acceleration</a></li>
<li>the os type block defines the architecture to be emulated, and
optionally the machine type, see the discovery API below</li>
<li>the emulator string must point to the right emulator for that
architecture</li>
</ul><h3><a name="Capa1" id="Capa1">Discovering virtualization capabilities (Added in 0.2.1)</a></h3><p>As new virtualization engine support gets added to libvirt, and to handle
cases like QEmu supporting a variety of emulations, a query interface has
been added in 0.2.1 allowing to list the set of supported virtualization
capabilities on the host:</p><pre> char * virConnectGetCapabilities (virConnectPtr conn);</pre><p>The value returned is an XML document listing the virtualization
capabilities of the host and virtualization engine to which
<code>@conn</code> is connected. One can test it using <code>virsh</code>
command line tool command '<code>capabilities</code>', it dumps the XML
associated to the current connection. For example in the case of a 64 bits
machine with hardware virtualization capabilities enabled in the chip and
BIOS you will see</p><pre>&lt;capabilities&gt;
<span style="color: #E50000; background-color: #FFFFFF">&lt;host&gt;
&lt;cpu&gt;
&lt;arch&gt;x86_64&lt;/arch&gt;
&lt;features&gt;
&lt;vmx/&gt;
&lt;/features&gt;
&lt;/cpu&gt;
&lt;/host&gt;</span>
&lt;!-- xen-3.0-x86_64 --&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;guest&gt;
&lt;os_type&gt;xen&lt;/os_type&gt;
&lt;arch name="x86_64"&gt;
&lt;wordsize&gt;64&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib64/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
&lt;!-- hvm-3.0-x86_32 --&gt;
<span style="color: #00B200; background-color: #FFFFFF">&lt;guest&gt;
&lt;os_type&gt;hvm&lt;/os_type&gt;
&lt;arch name="i686"&gt;
&lt;wordsize&gt;32&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;machine&gt;pc&lt;/machine&gt;
&lt;machine&gt;isapc&lt;/machine&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
...
&lt;/capabilities&gt;</pre><p>The first block (in red) indicates the host hardware capabilities, currently
it is limited to the CPU properties but other information may be available,
it shows the CPU architecture, and the features of the chip (the feature
block is similar to what you will find in a Xen fully virtualized domain
description).</p><p>The second block (in blue) indicates the paravirtualization support of the
Xen support, you will see the os_type of xen to indicate a paravirtual
kernel, then architecture information and potential features.</p><p>The third block (in green) gives similar information but when running a
32 bit OS fully virtualized with Xen using the hvm support.</p><p>This section is likely to be updated and augmented in the future, see <a href="https://www.redhat.com/archives/libvir-list/2007-March/msg00215.html">the
discussion</a> which led to the capabilities format in the mailing-list
archives.</p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
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<h1>Driver capabilities XML format</h1>
<p>As new virtualization engine support gets added to libvirt, and to handle
cases like QEmu supporting a variety of emulations, a query interface has
been added in 0.2.1 allowing to list the set of supported virtualization
capabilities on the host:</p>
<pre> char * virConnectGetCapabilities (virConnectPtr conn);</pre>
<p>The value returned is an XML document listing the virtualization
capabilities of the host and virtualization engine to which
<code>@conn</code> is connected. One can test it using <code>virsh</code>
command line tool command '<code>capabilities</code>', it dumps the XML
associated to the current connection. For example in the case of a 64 bits
machine with hardware virtualization capabilities enabled in the chip and
BIOS you will see</p>
<pre>&lt;capabilities&gt;
<span style="color: #E50000">&lt;host&gt;
&lt;cpu&gt;
&lt;arch&gt;x86_64&lt;/arch&gt;
&lt;features&gt;
&lt;vmx/&gt;
&lt;/features&gt;
&lt;/cpu&gt;
&lt;/host&gt;</span>
&lt;!-- xen-3.0-x86_64 --&gt;
<span style="color: #0000E5">&lt;guest&gt;
&lt;os_type&gt;xen&lt;/os_type&gt;
&lt;arch name="x86_64"&gt;
&lt;wordsize&gt;64&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib64/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
&lt;!-- hvm-3.0-x86_32 --&gt;
<span style="color: #00B200">&lt;guest&gt;
&lt;os_type&gt;hvm&lt;/os_type&gt;
&lt;arch name="i686"&gt;
&lt;wordsize&gt;32&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;machine&gt;pc&lt;/machine&gt;
&lt;machine&gt;isapc&lt;/machine&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
...
&lt;/capabilities&gt;</pre>
<p>The first block (in red) indicates the host hardware capabilities, currently
it is limited to the CPU properties but other information may be available,
it shows the CPU architecture, and the features of the chip (the feature
block is similar to what you will find in a Xen fully virtualized domain
description).</p>
<p>The second block (in blue) indicates the paravirtualization support of the
Xen support, you will see the os_type of xen to indicate a paravirtual
kernel, then architecture information and potential features.</p>
<p>The third block (in green) gives similar information but when running a
32 bit OS fully virtualized with Xen using the hvm support.</p>
<p>This section is likely to be updated and augmented in the future, see <a href="https://www.redhat.com/archives/libvir-list/2007-March/msg00215.html">the
discussion</a> which led to the capabilities format in the mailing-list
archives.</p>
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<h1>Driver capabilities XML format</h1>
<p>As new virtualization engine support gets added to libvirt, and to handle
cases like QEmu supporting a variety of emulations, a query interface has
been added in 0.2.1 allowing to list the set of supported virtualization
capabilities on the host:</p>
<pre> char * virConnectGetCapabilities (virConnectPtr conn);</pre>
<p>The value returned is an XML document listing the virtualization
capabilities of the host and virtualization engine to which
<code>@conn</code> is connected. One can test it using <code>virsh</code>
command line tool command '<code>capabilities</code>', it dumps the XML
associated to the current connection. For example in the case of a 64 bits
machine with hardware virtualization capabilities enabled in the chip and
BIOS you will see</p>
<pre>&lt;capabilities&gt;
<span style="color: #E50000">&lt;host&gt;
&lt;cpu&gt;
&lt;arch&gt;x86_64&lt;/arch&gt;
&lt;features&gt;
&lt;vmx/&gt;
&lt;/features&gt;
&lt;/cpu&gt;
&lt;/host&gt;</span>
&lt;!-- xen-3.0-x86_64 --&gt;
<span style="color: #0000E5">&lt;guest&gt;
&lt;os_type&gt;xen&lt;/os_type&gt;
&lt;arch name="x86_64"&gt;
&lt;wordsize&gt;64&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib64/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
&lt;!-- hvm-3.0-x86_32 --&gt;
<span style="color: #00B200">&lt;guest&gt;
&lt;os_type&gt;hvm&lt;/os_type&gt;
&lt;arch name="i686"&gt;
&lt;wordsize&gt;32&lt;/wordsize&gt;
&lt;domain type="xen"&gt;&lt;/domain&gt;
&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;
&lt;machine&gt;pc&lt;/machine&gt;
&lt;machine&gt;isapc&lt;/machine&gt;
&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;
&lt;/arch&gt;
&lt;features&gt;
&lt;/features&gt;
&lt;/guest&gt;</span>
...
&lt;/capabilities&gt;</pre>
<p>The first block (in red) indicates the host hardware capabilities, currently
it is limited to the CPU properties but other information may be available,
it shows the CPU architecture, and the features of the chip (the feature
block is similar to what you will find in a Xen fully virtualized domain
description).</p>
<p>The second block (in blue) indicates the paravirtualization support of the
Xen support, you will see the os_type of xen to indicate a paravirtual
kernel, then architecture information and potential features.</p>
<p>The third block (in green) gives similar information but when running a
32 bit OS fully virtualized with Xen using the hvm support.</p>
<p>This section is likely to be updated and augmented in the future, see <a href="https://www.redhat.com/archives/libvir-list/2007-March/msg00215.html">the
discussion</a> which led to the capabilities format in the mailing-list
archives.</p>
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<h1>Domain XML format</h1>
<p>This section describes the XML format used to represent domains, there are
variations on the format based on the kind of domains run and the options
used to launch them:</p>
<h3 id="Normal"><a name="Normal1" id="Normal1">Normal paravirtualized Xen
guests</a>:</h3>
<p>The root element must be called <code>domain</code> with no namespace, the
<code>type</code> attribute indicates the kind of hypervisor used, 'xen' is
the default value. The <code>id</code> attribute gives the domain id at
runtime (not however that this may change, for example if the domain is saved
to disk and restored). The domain has a few children whose order is not
significant:</p>
<ul><li>name: the domain name, preferably ASCII based</li><li>memory: the maximum memory allocated to the domain in kilobytes</li><li>vcpu: the number of virtual cpu configured for the domain</li><li>os: a block describing the Operating System, its content will be
dependent on the OS type
<ul><li>type: indicate the OS type, always linux at this point</li><li>kernel: path to the kernel on the Domain 0 filesystem</li><li>initrd: an optional path for the init ramdisk on the Domain 0
filesystem</li><li>cmdline: optional command line to the kernel</li><li>root: the root filesystem from the guest viewpoint, it may be
passed as part of the cmdline content too</li></ul></li><li>devices: a list of <code>disk</code>, <code>interface</code> and
<code>console</code> descriptions in no special order</li></ul>
<p>The format of the devices and their type may grow over time, but the
following should be sufficient for basic use:</p>
<p>A <code>disk</code> device indicates a block device, it can have two
values for the type attribute either 'file' or 'block' corresponding to the 2
options available at the Xen layer. It has two mandatory children, and one
optional one in no specific order:</p>
<ul><li>source with a file attribute containing the path in Domain 0 to the
file or a dev attribute if using a block device, containing the device
name ('hda5' or '/dev/hda5')</li><li>target indicates in a dev attribute the device where it is mapped in
the guest</li><li>readonly an optional empty element indicating the device is
read-only</li><li>shareable an optional empty element indicating the device
can be used read/write with other domains</li></ul>
<p>An <code>interface</code> element describes a network device mapped on the
guest, it also has a type whose value is currently 'bridge', it also have a
number of children in no specific order:</p>
<ul><li>source: indicating the bridge name</li><li>mac: the optional mac address provided in the address attribute</li><li>ip: the optional IP address provided in the address attribute</li><li>script: the script used to bridge the interface in the Domain 0</li><li>target: and optional target indicating the device name.</li></ul>
<p>A <code>console</code> element describes a serial console connection to
the guest. It has no children, and a single attribute <code>tty</code> which
provides the path to the Pseudo TTY on which the guest console can be
accessed</p>
<p>Life cycle actions for the domain can also be expressed in the XML format,
they drive what should be happening if the domain crashes, is rebooted or is
poweroff. There is various actions possible when this happen:</p>
<ul><li>destroy: The domain is cleaned up (that's the default normal processing
in Xen)</li><li>restart: A new domain is started in place of the old one with the same
configuration parameters</li><li>preserve: The domain will remain in memory until it is destroyed
manually, it won't be running but allows for post-mortem debugging</li><li>rename-restart: a variant of the previous one but where the old domain
is renamed before being saved to allow a restart</li></ul>
<p>The following could be used for a Xen production system:</p>
<pre>&lt;domain&gt;
...
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_crash&gt;rename-restart&lt;/on_crash&gt;
...
&lt;/domain&gt;</pre>
<p>While the format may be extended in various ways as support for more
hypervisor types and features are added, it is expected that this core subset
will remain functional in spite of the evolution of the library.</p>
<h3 id="Fully">
<a name="Fully1" id="Fully1">Fully virtualized guests</a>
</h3>
<p>There is a few things to notice specifically for HVM domains:</p>
<ul><li>the optional <code>&lt;features&gt;</code> block is used to enable
certain guest CPU / system features. For HVM guests the following
features are defined:
<ul><li><code>pae</code> - enable PAE memory addressing</li><li><code>apic</code> - enable IO APIC</li><li><code>acpi</code> - enable ACPI bios</li></ul></li><li>the optional <code>&lt;clock&gt;</code> element is used to specify
whether the emulated BIOS clock in the guest is synced to either
<code>localtime</code> or <code>utc</code>. In general Windows will
want <code>localtime</code> while all other operating systems will
want <code>utc</code>. The default is thus <code>utc</code></li><li>the <code>&lt;os&gt;</code> block description is very different, first
it indicates that the type is 'hvm' for hardware virtualization, then
instead of a kernel, boot and command line arguments, it points to an os
boot loader which will extract the boot information from the boot device
specified in a separate boot element. The <code>dev</code> attribute on
the <code>boot</code> tag can be one of:
<ul><li><code>fd</code> - boot from first floppy device</li><li><code>hd</code> - boot from first harddisk device</li><li><code>cdrom</code> - boot from first cdrom device</li></ul></li><li>the <code>&lt;devices&gt;</code> section includes an emulator entry
pointing to an additional program in charge of emulating the devices</li><li>the disk entry indicates in the dev target section that the emulation
for the drive is the first IDE disk device hda. The list of device names
supported is dependent on the Hypervisor, but for Xen it can be any IDE
device <code>hda</code>-<code>hdd</code>, or a floppy device
<code>fda</code>, <code>fdb</code>. The <code>&lt;disk&gt;</code> element
also supports a 'device' attribute to indicate what kinda of hardware to
emulate. The following values are supported:
<ul><li><code>floppy</code> - a floppy disk controller</li><li><code>disk</code> - a generic hard drive (the default it
omitted)</li><li><code>cdrom</code> - a CDROM device</li></ul>
For Xen 3.0.2 and earlier a CDROM device can only be emulated on the
<code>hdc</code> channel, while for 3.0.3 and later, it can be emulated
on any IDE channel.</li><li>the <code>&lt;devices&gt;</code> section also include at least one
entry for the graphic device used to render the os. Currently there is
just 2 types possible 'vnc' or 'sdl'. If the type is 'vnc', then an
additional <code>port</code> attribute will be present indicating the TCP
port on which the VNC server is accepting client connections.</li></ul>
<p>It is likely that the HVM description gets additional optional elements
and attributes as the support for fully virtualized domain expands,
especially for the variety of devices emulated and the graphic support
options offered.</p>
<h3>
<a name="Net1" id="Net1">Networking interface options</a>
</h3>
<p>The networking support in the QEmu and KVM case is more flexible, and
support a variety of options:</p>
<ol><li>Userspace SLIRP stack
<p>Provides a virtual LAN with NAT to the outside world. The virtual
network has DHCP &amp; DNS services and will give the guest VM addresses
starting from <code>10.0.2.15</code>. The default router will be
<code>10.0.2.2</code> and the DNS server will be <code>10.0.2.3</code>.
This networking is the only option for unprivileged users who need their
VMs to have outgoing access. Example configs are:</p>
<pre>&lt;interface type='user'/&gt;</pre>
<pre>
&lt;interface type='user'&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
</pre>
</li><li>Virtual network
<p>Provides a virtual network using a bridge device in the host.
Depending on the virtual network configuration, the network may be
totally isolated, NAT'ing to an explicit network device, or NAT'ing to
the default route. DHCP and DNS are provided on the virtual network in
all cases and the IP range can be determined by examining the virtual
network config with '<code>virsh net-dumpxml &lt;network
name&gt;</code>'. There is one virtual network called 'default' setup out
of the box which does NAT'ing to the default route and has an IP range of
<code>192.168.22.0/255.255.255.0</code>. Each guest will have an
associated tun device created with a name of vnetN, which can also be
overridden with the &lt;target&gt; element. Example configs are:</p>
<pre>&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;/interface&gt;
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
</pre>
</li><li>Bridge to to LAN
<p>Provides a bridge from the VM directly onto the LAN. This assumes
there is a bridge device on the host which has one or more of the hosts
physical NICs enslaved. The guest VM will have an associated tun device
created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. The tun device will be enslaved to the bridge.
The IP range / network configuration is whatever is used on the LAN. This
provides the guest VM full incoming &amp; outgoing net access just like a
physical machine. Examples include:</p>
<pre>&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;/interface&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;</pre>
</li><li>Generic connection to LAN
<p>Provides a means for the administrator to execute an arbitrary script
to connect the guest's network to the LAN. The guest will have a tun
device created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. After creating the tun device a shell script will
be run which is expected to do whatever host network integration is
required. By default this script is called /etc/qemu-ifup but can be
overridden.</p>
<pre>&lt;interface type='ethernet'/&gt;
&lt;interface type='ethernet'&gt;
&lt;target dev='vnet7'/&gt;
&lt;script path='/etc/qemu-ifup-mynet'/&gt;
&lt;/interface&gt;</pre>
</li><li>Multicast tunnel
<p>A multicast group is setup to represent a virtual network. Any VMs
whose network devices are in the same multicast group can talk to each
other even across hosts. This mode is also available to unprivileged
users. There is no default DNS or DHCP support and no outgoing network
access. To provide outgoing network access, one of the VMs should have a
2nd NIC which is connected to one of the first 4 network types and do the
appropriate routing. The multicast protocol is compatible with that used
by user mode linux guests too. The source address used must be from the
multicast address block.</p>
<pre>&lt;interface type='mcast'&gt;
&lt;source address='230.0.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
</li><li>TCP tunnel
<p>A TCP client/server architecture provides a virtual network. One VM
provides the server end of the network, all other VMS are configured as
clients. All network traffic is routed between the VMs via the server.
This mode is also available to unprivileged users. There is no default
DNS or DHCP support and no outgoing network access. To provide outgoing
network access, one of the VMs should have a 2nd NIC which is connected
to one of the first 4 network types and do the appropriate routing.</p>
<p>Example server config:</p>
<pre>&lt;interface type='server'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
<p>Example client config:</p>
<pre>&lt;interface type='client'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
</li></ol>
<p>To be noted, options 2, 3, 4 are also supported by Xen VMs, so it is
possible to use these configs to have networking with both Xen &amp;
QEMU/KVMs connected to each other.</p>
<h2>Example configs</h2>
<p>
Example configurations for each driver are provide on the
driver specific pages listed below
</p>
<ul><li><a href="drvxen.html#xmlconfig">Xen examples</a></li><li><a href="drvqemu.html#xmlconfig">QEMU/KVM examples</a></li></ul>
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<h1>Domain XML format</h1>
<p>This section describes the XML format used to represent domains, there are
variations on the format based on the kind of domains run and the options
used to launch them:</p>
<h3 id="Normal"><a name="Normal1" id="Normal1">Normal paravirtualized Xen
guests</a>:</h3>
<p>The root element must be called <code>domain</code> with no namespace, the
<code>type</code> attribute indicates the kind of hypervisor used, 'xen' is
the default value. The <code>id</code> attribute gives the domain id at
runtime (not however that this may change, for example if the domain is saved
to disk and restored). The domain has a few children whose order is not
significant:</p>
<ul>
<li>name: the domain name, preferably ASCII based</li>
<li>memory: the maximum memory allocated to the domain in kilobytes</li>
<li>vcpu: the number of virtual cpu configured for the domain</li>
<li>os: a block describing the Operating System, its content will be
dependent on the OS type
<ul><li>type: indicate the OS type, always linux at this point</li><li>kernel: path to the kernel on the Domain 0 filesystem</li><li>initrd: an optional path for the init ramdisk on the Domain 0
filesystem</li><li>cmdline: optional command line to the kernel</li><li>root: the root filesystem from the guest viewpoint, it may be
passed as part of the cmdline content too</li></ul></li>
<li>devices: a list of <code>disk</code>, <code>interface</code> and
<code>console</code> descriptions in no special order</li>
</ul>
<p>The format of the devices and their type may grow over time, but the
following should be sufficient for basic use:</p>
<p>A <code>disk</code> device indicates a block device, it can have two
values for the type attribute either 'file' or 'block' corresponding to the 2
options available at the Xen layer. It has two mandatory children, and one
optional one in no specific order:</p>
<ul>
<li>source with a file attribute containing the path in Domain 0 to the
file or a dev attribute if using a block device, containing the device
name ('hda5' or '/dev/hda5')</li>
<li>target indicates in a dev attribute the device where it is mapped in
the guest</li>
<li>readonly an optional empty element indicating the device is
read-only</li>
<li>shareable an optional empty element indicating the device
can be used read/write with other domains</li>
</ul>
<p>An <code>interface</code> element describes a network device mapped on the
guest, it also has a type whose value is currently 'bridge', it also have a
number of children in no specific order:</p>
<ul>
<li>source: indicating the bridge name</li>
<li>mac: the optional mac address provided in the address attribute</li>
<li>ip: the optional IP address provided in the address attribute</li>
<li>script: the script used to bridge the interface in the Domain 0</li>
<li>target: and optional target indicating the device name.</li>
</ul>
<p>A <code>console</code> element describes a serial console connection to
the guest. It has no children, and a single attribute <code>tty</code> which
provides the path to the Pseudo TTY on which the guest console can be
accessed</p>
<p>Life cycle actions for the domain can also be expressed in the XML format,
they drive what should be happening if the domain crashes, is rebooted or is
poweroff. There is various actions possible when this happen:</p>
<ul>
<li>destroy: The domain is cleaned up (that's the default normal processing
in Xen)</li>
<li>restart: A new domain is started in place of the old one with the same
configuration parameters</li>
<li>preserve: The domain will remain in memory until it is destroyed
manually, it won't be running but allows for post-mortem debugging</li>
<li>rename-restart: a variant of the previous one but where the old domain
is renamed before being saved to allow a restart</li>
</ul>
<p>The following could be used for a Xen production system:</p>
<pre>&lt;domain&gt;
...
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_crash&gt;rename-restart&lt;/on_crash&gt;
...
&lt;/domain&gt;</pre>
<p>While the format may be extended in various ways as support for more
hypervisor types and features are added, it is expected that this core subset
will remain functional in spite of the evolution of the library.</p>
<h3 id="Fully"><a name="Fully1" id="Fully1">Fully virtualized guests</a></h3>
<p>There is a few things to notice specifically for HVM domains:</p>
<ul>
<li>the optional <code>&lt;features&gt;</code> block is used to enable
certain guest CPU / system features. For HVM guests the following
features are defined:
<ul><li><code>pae</code> - enable PAE memory addressing</li><li><code>apic</code> - enable IO APIC</li><li><code>acpi</code> - enable ACPI bios</li></ul></li>
<li>the optional <code>&lt;clock&gt;</code> element is used to specify
whether the emulated BIOS clock in the guest is synced to either
<code>localtime</code> or <code>utc</code>. In general Windows will
want <code>localtime</code> while all other operating systems will
want <code>utc</code>. The default is thus <code>utc</code></li>
<li>the <code>&lt;os&gt;</code> block description is very different, first
it indicates that the type is 'hvm' for hardware virtualization, then
instead of a kernel, boot and command line arguments, it points to an os
boot loader which will extract the boot information from the boot device
specified in a separate boot element. The <code>dev</code> attribute on
the <code>boot</code> tag can be one of:
<ul><li><code>fd</code> - boot from first floppy device</li><li><code>hd</code> - boot from first harddisk device</li><li><code>cdrom</code> - boot from first cdrom device</li></ul></li>
<li>the <code>&lt;devices&gt;</code> section includes an emulator entry
pointing to an additional program in charge of emulating the devices</li>
<li>the disk entry indicates in the dev target section that the emulation
for the drive is the first IDE disk device hda. The list of device names
supported is dependent on the Hypervisor, but for Xen it can be any IDE
device <code>hda</code>-<code>hdd</code>, or a floppy device
<code>fda</code>, <code>fdb</code>. The <code>&lt;disk&gt;</code> element
also supports a 'device' attribute to indicate what kinda of hardware to
emulate. The following values are supported:
<ul><li><code>floppy</code> - a floppy disk controller</li><li><code>disk</code> - a generic hard drive (the default it
omitted)</li><li><code>cdrom</code> - a CDROM device</li></ul>
For Xen 3.0.2 and earlier a CDROM device can only be emulated on the
<code>hdc</code> channel, while for 3.0.3 and later, it can be emulated
on any IDE channel.</li>
<li>the <code>&lt;devices&gt;</code> section also include at least one
entry for the graphic device used to render the os. Currently there is
just 2 types possible 'vnc' or 'sdl'. If the type is 'vnc', then an
additional <code>port</code> attribute will be present indicating the TCP
port on which the VNC server is accepting client connections.</li>
</ul>
<p>It is likely that the HVM description gets additional optional elements
and attributes as the support for fully virtualized domain expands,
especially for the variety of devices emulated and the graphic support
options offered.</p>
<h3>
<a name="Net1" id="Net1">Networking interface options</a>
</h3>
<p>The networking support in the QEmu and KVM case is more flexible, and
support a variety of options:</p>
<ol>
<li>Userspace SLIRP stack
<p>Provides a virtual LAN with NAT to the outside world. The virtual
network has DHCP &amp; DNS services and will give the guest VM addresses
starting from <code>10.0.2.15</code>. The default router will be
<code>10.0.2.2</code> and the DNS server will be <code>10.0.2.3</code>.
This networking is the only option for unprivileged users who need their
VMs to have outgoing access. Example configs are:</p>
<pre>&lt;interface type='user'/&gt;</pre>
<pre>
&lt;interface type='user'&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
</pre>
</li>
<li>Virtual network
<p>Provides a virtual network using a bridge device in the host.
Depending on the virtual network configuration, the network may be
totally isolated, NAT'ing to an explicit network device, or NAT'ing to
the default route. DHCP and DNS are provided on the virtual network in
all cases and the IP range can be determined by examining the virtual
network config with '<code>virsh net-dumpxml &lt;network
name&gt;</code>'. There is one virtual network called 'default' setup out
of the box which does NAT'ing to the default route and has an IP range of
<code>192.168.22.0/255.255.255.0</code>. Each guest will have an
associated tun device created with a name of vnetN, which can also be
overridden with the &lt;target&gt; element. Example configs are:</p>
<pre>&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;/interface&gt;
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;
</pre>
</li>
<li>Bridge to to LAN
<p>Provides a bridge from the VM directly onto the LAN. This assumes
there is a bridge device on the host which has one or more of the hosts
physical NICs enslaved. The guest VM will have an associated tun device
created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. The tun device will be enslaved to the bridge.
The IP range / network configuration is whatever is used on the LAN. This
provides the guest VM full incoming &amp; outgoing net access just like a
physical machine. Examples include:</p>
<pre>&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;/interface&gt;
&lt;interface type='bridge'&gt;
&lt;source bridge='br0'/&gt;
&lt;target dev='vnet7'/&gt;
&lt;mac address="11:22:33:44:55:66"/&gt;
&lt;/interface&gt;</pre>
</li>
<li>Generic connection to LAN
<p>Provides a means for the administrator to execute an arbitrary script
to connect the guest's network to the LAN. The guest will have a tun
device created with a name of vnetN, which can also be overridden with the
&lt;target&gt; element. After creating the tun device a shell script will
be run which is expected to do whatever host network integration is
required. By default this script is called /etc/qemu-ifup but can be
overridden.</p>
<pre>&lt;interface type='ethernet'/&gt;
&lt;interface type='ethernet'&gt;
&lt;target dev='vnet7'/&gt;
&lt;script path='/etc/qemu-ifup-mynet'/&gt;
&lt;/interface&gt;</pre>
</li>
<li>Multicast tunnel
<p>A multicast group is setup to represent a virtual network. Any VMs
whose network devices are in the same multicast group can talk to each
other even across hosts. This mode is also available to unprivileged
users. There is no default DNS or DHCP support and no outgoing network
access. To provide outgoing network access, one of the VMs should have a
2nd NIC which is connected to one of the first 4 network types and do the
appropriate routing. The multicast protocol is compatible with that used
by user mode linux guests too. The source address used must be from the
multicast address block.</p>
<pre>&lt;interface type='mcast'&gt;
&lt;source address='230.0.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
</li>
<li>TCP tunnel
<p>A TCP client/server architecture provides a virtual network. One VM
provides the server end of the network, all other VMS are configured as
clients. All network traffic is routed between the VMs via the server.
This mode is also available to unprivileged users. There is no default
DNS or DHCP support and no outgoing network access. To provide outgoing
network access, one of the VMs should have a 2nd NIC which is connected
to one of the first 4 network types and do the appropriate routing.</p>
<p>Example server config:</p>
<pre>&lt;interface type='server'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
<p>Example client config:</p>
<pre>&lt;interface type='client'&gt;
&lt;source address='192.168.0.1' port='5558'/&gt;
&lt;/interface&gt;</pre>
</li>
</ol>
<p>To be noted, options 2, 3, 4 are also supported by Xen VMs, so it is
possible to use these configs to have networking with both Xen &amp;
QEMU/KVMs connected to each other.</p>
<h2>Example configs</h2>
<p>
Example configurations for each driver are provide on the
driver specific pages listed below
</p>
<ul>
<li><a href="drvxen.html#xmlconfig">Xen examples</a></li>
<li><a href="drvqemu.html#xmlconfig">QEMU/KVM examples</a></li>
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<h1>Network XML format</h1>
<h2>Example configuration</h2>
<h3>NAT based network</h3>
<pre>
&lt;network&gt;
&lt;name&gt;default&lt;/name&gt;
&lt;bridge name="virbr0" /&gt;
&lt;forward type="nat"/&gt;
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<h3>Routed network config</h3>
<pre>
&lt;network&gt;
&lt;name&gt;local&lt;/name&gt;
&lt;bridge name="virbr1" /&gt;
&lt;forward type="route" dev="eth1"/&gt;
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<h3>Isolated network config</h3>
<pre>
&lt;network&gt;
&lt;name&gt;private&lt;/name&gt;
&lt;bridge name="virbr2" /&gt;
&lt;ip address="192.168.152.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.152.2" end="192.168.152.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
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<h1>Network XML format</h1>
<h2>Example configuration</h2>
<h3>NAT based network</h3>
<pre>
&lt;network&gt;
&lt;name&gt;default&lt;/name&gt;
&lt;bridge name="virbr0" /&gt;
&lt;forward type="nat"/&gt;
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<h3>Routed network config</h3>
<pre>
&lt;network&gt;
&lt;name&gt;local&lt;/name&gt;
&lt;bridge name="virbr1" /&gt;
&lt;forward type="route" dev="eth1"/&gt;
&lt;ip address="192.168.122.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.122.2" end="192.168.122.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
<h3>Isolated network config</h3>
<pre>
&lt;network&gt;
&lt;name&gt;private&lt;/name&gt;
&lt;bridge name="virbr2" /&gt;
&lt;ip address="192.168.152.1" netmask="255.255.255.0"&gt;
&lt;dhcp&gt;
&lt;range start="192.168.152.2" end="192.168.152.254" /&gt;
&lt;/dhcp&gt;
&lt;/ip&gt;
&lt;/network&gt;</pre>
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<h1>Storage pool and volume XML format</h1>
<ul><li>
<a href="#StoragePool">Storage pool XML</a>
<ul><li>
<a href="#StoragePoolFirst">First level elements</a>
</li><li>
<a href="#StoragePoolSource">Source elements</a>
</li><li>
<a href="#StoragePoolTarget">Target elements</a>
</li><li>
<a href="#StoragePoolExtents">Device extents</a>
</li></ul></li><li>
<a href="#StorageVol">Storage volume XML</a>
<ul><li>
<a href="#StorageVolFirst">First level elements</a>
</li><li>
<a href="#StorageVolSource">Source elements</a>
</li><li>
<a href="#StorageVolTarget">Target elements</a>
</li></ul></li></ul>
<h3>
<a name="StoragePool" id="StoragePool">Storage pool XML</a>
</h3>
<p>
Although all storage pool backends share the same public APIs and
XML format, they have varying levels of capabilities. Some may
allow creation of volumes, others may only allow use of pre-existing
volumes. Some may have constraints on volume size, or placement.
</p>
<p>The is the top level tag for a storage pool document is 'pool'. It has
a single attribute <code>type</code>, which is one of <code>dir</code>,
<code>fs</code>,<code>netfs</code>,<code>disk</code>,<code>iscsi</code>,
<code>logical</code>. This corresponds to the storage backend drivers
listed further along in this document.
</p>
<h4>
<a name="StoragePoolFirst" id="StoragePoolFirst">First level elements</a>
</h4>
<dl><dt>name</dt><dd>Providing a name for the pool which is unique to the host.
This is mandatory when defining a pool</dd><dt>uuid</dt><dd>Providing an identifier for the pool which is globally unique.
This is optional when defining a pool, a UUID will be generated if
omitted</dd><dt>allocation</dt><dd>Providing the total storage allocation for the pool. This may
be larger than the sum of the allocation of all volumes due to
metadata overhead. This value is in bytes. This is not applicable
when creating a pool.</dd><dt>capacity</dt><dd>Providing the total storage capacity for the pool. Due to
underlying device constraints it may not be possible to use the
full capacity for storage volumes. This value is in bytes. This
is not applicable when creating a pool.</dd><dt>available</dt><dd>Providing the free space available for allocating new volumes
in the pool. Due to underlying device constraints it may not be
possible to allocate the entire free space to a single volume.
This value is in bytes. This is not applicable when creating a
pool.</dd><dt>source</dt><dd>Provides information about the source of the pool, such as
the underlying host devices, or remote server</dd><dt>target</dt><dd>Provides information about the representation of the pool
on the local host.</dd></dl>
<h4>
<a name="StoragePoolSource" id="StoragePoolSource">Source elements</a>
</h4>
<dl><dt>device</dt><dd>Provides the source for pools backed by physical devices.
May be repeated multiple times depending on backend driver. Contains
a single attribute <code>path</code> which is the fully qualified
path to the block device node.</dd><dt>directory</dt><dd>Provides the source for pools backed by directories. May
only occur once. Contains a single attribute <code>path</code>
which is the fully qualified path to the block device node.</dd><dt>host</dt><dd>Provides the source for pools backed by storage from a
remote server. Will be used in combination with a <code>directory</code>
or <code>device</code> element. Contains an attribute <code>name<code>
which is the hostname or IP address of the server. May optionally
contain a <code>port</code> attribute for the protocol specific
port number.</code></code></dd><dt>format</dt><dd>Provides information about the format of the pool. This
contains a single attribute <code>type</code> whose value is
backend specific. This is typically used to indicate filesystem
type, or network filesystem type, or partition table type, or
LVM metadata type. All drivers are required to have a default
value for this, so it is optional.</dd></dl>
<h4>
<a name="StoragePoolTarget" id="StoragePoolTarget">Target elements</a>
</h4>
<dl><dt>path</dt><dd>Provides the location at which the pool will be mapped into
the local filesystem namespace. For a filesystem/directory based
pool it will be the name of the directory in which volumes will
be created. For device based pools it will be the name of the directory in which
devices nodes exist. For the latter <code>/dev/</code> may seem
like the logical choice, however, devices nodes there are not
guaranteed stable across reboots, since they are allocated on
demand. It is preferable to use a stable location such as one
of the <code>/dev/disk/by-{path,id,uuid,label</code> locations.
</dd><dt>permissions</dt><dd>Provides information about the default permissions to use
when creating volumes. This is currently only useful for directory
or filesystem based pools, where the volumes allocated are simple
files. For pools where the volumes are device nodes, the hotplug
scripts determine permissions. It contains 4 child elements. The
<code>mode</code> element contains the octal permission set. The
<code>owner</code> element contains the numeric user ID. The <code>group</code>
element contains the numeric group ID. The <code>label</code> element
contains the MAC (eg SELinux) label string.
</dd></dl>
<h4>
<a name="StoragePoolExtents" id="StoragePoolExtents">Device extents</a>
</h4>
<p>
If a storage pool exposes information about its underlying
placement / allocation scheme, the <code>device</code> element
within the <code>source</code> element may contain information
about its available extents. Some pools have a constraint that
a volume must be allocated entirely within a single constraint
(eg disk partition pools). Thus the extent information allows an
application to determine the maximum possible size for a new
volume
</p>
<p>
For storage pools supporting extent information, within each
<code>device</code> element there will be zero or more <code>freeExtent</code>
elements. Each of these elements contains two attributes, <code>start</code>
and <code>end</code> which provide the boundaries of the extent on the
device, measured in bytes.
</p>
<h3>
<a name="StorageVol" id="StorageVol">Storage volume XML</a>
</h3>
<p>
A storage volume will be either a file or a device node.
</p>
<h4>
<a name="StorageVolFirst" id="StorageVolFirst">First level elements</a>
</h4>
<dl><dt>name</dt><dd>Providing a name for the pool which is unique to the host.
This is mandatory when defining a pool</dd><dt>uuid</dt><dd>Providing an identifier for the pool which is globally unique.
This is optional when defining a pool, a UUID will be generated if
omitted</dd><dt>allocation</dt><dd>Providing the total storage allocation for the volume. This
may be smaller than the logical capacity if the volume is sparsely
allocated. It may also be larger than the logical capacity if the
volume has substantial metadata overhead. This value is in bytes.
If omitted when creating a volume, the volume will be fully
allocated at time of creation. If set to a value smaller than the
capacity, the pool has the <strong>option</strong> of deciding
to sparsely allocate a volume. It does not have to honour requests
for sparse allocation though.</dd><dt>capacity</dt><dd>Providing the logical capacity for the volume. This value is
in bytes. This is compulsory when creating a volume</dd><dt>source</dt><dd>Provides information about the underlying storage allocation
of the volume. This may not be available for some pool types.</dd><dt>target</dt><dd>Provides information about the representation of the volume
on the local host.</dd></dl>
<h4>
<a name="StorageVolTarget" id="StorageVolTarget">Target elements</a>
</h4>
<dl><dt>path</dt><dd>Provides the location at which the pool will be mapped into
the local filesystem namespace. For a filesystem/directory based
pool it will be the name of the directory in which volumes will
be created. For device based pools it will be the name of the directory in which
devices nodes exist. For the latter <code>/dev/</code> may seem
like the logical choice, however, devices nodes there are not
guaranteed stable across reboots, since they are allocated on
demand. It is preferrable to use a stable location such as one
of the <code>/dev/disk/by-{path,id,uuid,label</code> locations.
</dd><dt>format</dt><dd>Provides information about the pool specific volume format.
For disk pools it will provide the partition type. For filesystem
or directory pools it will provide the file format type, eg cow,
qcow, vmdk, raw. If omitted when creating a volume, the pool's
default format will be used. The actual format is specified via
the <code>type</code>. Consult the pool-specific docs for the
list of valid values.</dd><dt>permissions</dt><dd>Provides information about the default permissions to use
when creating volumes. This is currently only useful for directory
or filesystem based pools, where the volumes allocated are simple
files. For pools where the volumes are device nodes, the hotplug
scripts determine permissions. It contains 4 child elements. The
<code>mode</code> element contains the octal permission set. The
<code>owner</code> element contains the numeric user ID. The <code>group</code>
element contains the numeric group ID. The <code>label</code> element
contains the MAC (eg SELinux) label string.
</dd></dl>
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<html>
<body>
<h1>Storage pool and volume XML format</h1>
<ul>
<li>
<a href="#StoragePool">Storage pool XML</a>
<ul>
<li>
<a href="#StoragePoolFirst">First level elements</a>
</li>
<li>
<a href="#StoragePoolSource">Source elements</a>
</li>
<li>
<a href="#StoragePoolTarget">Target elements</a>
</li>
<li>
<a href="#StoragePoolExtents">Device extents</a>
</li>
</ul>
</li>
<li>
<a href="#StorageVol">Storage volume XML</a>
<ul>
<li>
<a href="#StorageVolFirst">First level elements</a>
</li>
<li>
<a href="#StorageVolSource">Source elements</a>
</li>
<li>
<a href="#StorageVolTarget">Target elements</a>
</li>
</ul>
</li>
</ul>
<h3>
<a name="StoragePool" id="StoragePool">Storage pool XML</a>
</h3>
<p>
Although all storage pool backends share the same public APIs and
XML format, they have varying levels of capabilities. Some may
allow creation of volumes, others may only allow use of pre-existing
volumes. Some may have constraints on volume size, or placement.
</p>
<p>The is the top level tag for a storage pool document is 'pool'. It has
a single attribute <code>type</code>, which is one of <code>dir</code>,
<code>fs</code>,<code>netfs</code>,<code>disk</code>,<code>iscsi</code>,
<code>logical</code>. This corresponds to the storage backend drivers
listed further along in this document.
</p>
<h4>
<a name="StoragePoolFirst" id="StoragePoolFirst">First level elements</a>
</h4>
<dl>
<dt>name</dt>
<dd>Providing a name for the pool which is unique to the host.
This is mandatory when defining a pool</dd>
<dt>uuid</dt>
<dd>Providing an identifier for the pool which is globally unique.
This is optional when defining a pool, a UUID will be generated if
omitted</dd>
<dt>allocation</dt>
<dd>Providing the total storage allocation for the pool. This may
be larger than the sum of the allocation of all volumes due to
metadata overhead. This value is in bytes. This is not applicable
when creating a pool.</dd>
<dt>capacity</dt>
<dd>Providing the total storage capacity for the pool. Due to
underlying device constraints it may not be possible to use the
full capacity for storage volumes. This value is in bytes. This
is not applicable when creating a pool.</dd>
<dt>available</dt>
<dd>Providing the free space available for allocating new volumes
in the pool. Due to underlying device constraints it may not be
possible to allocate the entire free space to a single volume.
This value is in bytes. This is not applicable when creating a
pool.</dd>
<dt>source</dt>
<dd>Provides information about the source of the pool, such as
the underlying host devices, or remote server</dd>
<dt>target</dt>
<dd>Provides information about the representation of the pool
on the local host.</dd>
</dl>
<h4>
<a name="StoragePoolSource" id="StoragePoolSource">Source elements</a>
</h4>
<dl>
<dt>device</dt>
<dd>Provides the source for pools backed by physical devices.
May be repeated multiple times depending on backend driver. Contains
a single attribute <code>path</code> which is the fully qualified
path to the block device node.</dd>
<dt>directory</dt>
<dd>Provides the source for pools backed by directories. May
only occur once. Contains a single attribute <code>path</code>
which is the fully qualified path to the block device node.</dd>
<dt>host</dt>
<dd>Provides the source for pools backed by storage from a
remote server. Will be used in combination with a <code>directory</code>
or <code>device</code> element. Contains an attribute <code>name<code>
which is the hostname or IP address of the server. May optionally
contain a <code>port</code> attribute for the protocol specific
port number.</code></code></dd>
<dt>format</dt>
<dd>Provides information about the format of the pool. This
contains a single attribute <code>type</code> whose value is
backend specific. This is typically used to indicate filesystem
type, or network filesystem type, or partition table type, or
LVM metadata type. All drivers are required to have a default
value for this, so it is optional.</dd>
</dl>
<h4>
<a name="StoragePoolTarget" id="StoragePoolTarget">Target elements</a>
</h4>
<dl>
<dt>path</dt>
<dd>Provides the location at which the pool will be mapped into
the local filesystem namespace. For a filesystem/directory based
pool it will be the name of the directory in which volumes will
be created. For device based pools it will be the name of the directory in which
devices nodes exist. For the latter <code>/dev/</code> may seem
like the logical choice, however, devices nodes there are not
guaranteed stable across reboots, since they are allocated on
demand. It is preferable to use a stable location such as one
of the <code>/dev/disk/by-{path,id,uuid,label</code> locations.
</dd>
<dt>permissions</dt>
<dd>Provides information about the default permissions to use
when creating volumes. This is currently only useful for directory
or filesystem based pools, where the volumes allocated are simple
files. For pools where the volumes are device nodes, the hotplug
scripts determine permissions. It contains 4 child elements. The
<code>mode</code> element contains the octal permission set. The
<code>owner</code> element contains the numeric user ID. The <code>group</code>
element contains the numeric group ID. The <code>label</code> element
contains the MAC (eg SELinux) label string.
</dd>
</dl>
<h4>
<a name="StoragePoolExtents" id="StoragePoolExtents">Device extents</a>
</h4>
<p>
If a storage pool exposes information about its underlying
placement / allocation scheme, the <code>device</code> element
within the <code>source</code> element may contain information
about its available extents. Some pools have a constraint that
a volume must be allocated entirely within a single constraint
(eg disk partition pools). Thus the extent information allows an
application to determine the maximum possible size for a new
volume
</p>
<p>
For storage pools supporting extent information, within each
<code>device</code> element there will be zero or more <code>freeExtent</code>
elements. Each of these elements contains two attributes, <code>start</code>
and <code>end</code> which provide the boundaries of the extent on the
device, measured in bytes.
</p>
<h3>
<a name="StorageVol" id="StorageVol">Storage volume XML</a>
</h3>
<p>
A storage volume will be either a file or a device node.
</p>
<h4>
<a name="StorageVolFirst" id="StorageVolFirst">First level elements</a>
</h4>
<dl>
<dt>name</dt>
<dd>Providing a name for the pool which is unique to the host.
This is mandatory when defining a pool</dd>
<dt>uuid</dt>
<dd>Providing an identifier for the pool which is globally unique.
This is optional when defining a pool, a UUID will be generated if
omitted</dd>
<dt>allocation</dt>
<dd>Providing the total storage allocation for the volume. This
may be smaller than the logical capacity if the volume is sparsely
allocated. It may also be larger than the logical capacity if the
volume has substantial metadata overhead. This value is in bytes.
If omitted when creating a volume, the volume will be fully
allocated at time of creation. If set to a value smaller than the
capacity, the pool has the <strong>option</strong> of deciding
to sparsely allocate a volume. It does not have to honour requests
for sparse allocation though.</dd>
<dt>capacity</dt>
<dd>Providing the logical capacity for the volume. This value is
in bytes. This is compulsory when creating a volume</dd>
<dt>source</dt>
<dd>Provides information about the underlying storage allocation
of the volume. This may not be available for some pool types.</dd>
<dt>target</dt>
<dd>Provides information about the representation of the volume
on the local host.</dd>
</dl>
<h4>
<a name="StorageVolTarget" id="StorageVolTarget">Target elements</a>
</h4>
<dl>
<dt>path</dt>
<dd>Provides the location at which the pool will be mapped into
the local filesystem namespace. For a filesystem/directory based
pool it will be the name of the directory in which volumes will
be created. For device based pools it will be the name of the directory in which
devices nodes exist. For the latter <code>/dev/</code> may seem
like the logical choice, however, devices nodes there are not
guaranteed stable across reboots, since they are allocated on
demand. It is preferrable to use a stable location such as one
of the <code>/dev/disk/by-{path,id,uuid,label</code> locations.
</dd>
<dt>format</dt>
<dd>Provides information about the pool specific volume format.
For disk pools it will provide the partition type. For filesystem
or directory pools it will provide the file format type, eg cow,
qcow, vmdk, raw. If omitted when creating a volume, the pool's
default format will be used. The actual format is specified via
the <code>type</code>. Consult the pool-specific docs for the
list of valid values.</dd>
<dt>permissions</dt>
<dd>Provides information about the default permissions to use
when creating volumes. This is currently only useful for directory
or filesystem based pools, where the volumes allocated are simple
files. For pools where the volumes are device nodes, the hotplug
scripts determine permissions. It contains 4 child elements. The
<code>mode</code> element contains the octal permission set. The
<code>owner</code> element contains the numeric user ID. The <code>group</code>
element contains the numeric group ID. The <code>label</code> element
contains the MAC (eg SELinux) label string.
</dd>
</dl>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="../libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Module conf from libvirt</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Module conf from libvirt</h1><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="libvirt-virterror.html"><img src="left.png" width="24" height="24" border="0" alt="Prev" /></a></td><th align="left"><a href="libvirt-virterror.html">virterror</a></th><td><a accesskey="u" href="index.html"><img src="up.png" width="24" height="24" border="0" alt="Up" /></a></td><th align="left"><a href="index.html">API documentation</a></th><td><a accesskey="h" href="../index.html"><img src="home.png" width="24" height="24" border="0" alt="Home" /></a></td><th align="center"><a href="../index.html">The virtualization API</a></th></tr></table><h2>Table of Contents</h2><pre class="programlisting">Structure <a href="#virConf">virConf</a><br />struct _virConf
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libvirt-conf.html#virConf">virConf</a> * <a name="virConfPtr" id="virConfPtr">virConfPtr</a>
</pre><pre class="programlisting">Enum <a href="#virConfType">virConfType</a>
</pre><pre class="programlisting">Structure <a href="#virConfValue">virConfValue</a><br />struct _virConfValue
</pre><pre class="programlisting">Typedef <a href="libvirt-conf.html#virConfValue">virConfValue</a> * <a name="virConfValuePtr" id="virConfValuePtr">virConfValuePtr</a>
</pre><pre class="programlisting">int <a href="#virConfFree">virConfFree</a> (<a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)</pre>
<pre class="programlisting"><a href="libvirt-conf.html#virConfValuePtr">virConfValuePtr</a> <a href="#virConfGetValue">virConfGetValue</a> (<a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf, <br /> const char * setting)</pre>
<pre class="programlisting"><a href="libvirt-conf.html#virConfPtr">virConfPtr</a> <a href="#virConfReadFile">virConfReadFile</a> (const char * filename)</pre>
<pre class="programlisting"><a href="libvirt-conf.html#virConfPtr">virConfPtr</a> <a href="#virConfReadMem">virConfReadMem</a> (const char * memory, <br /> int len)</pre>
<pre class="programlisting">int <a href="#virConfWriteFile">virConfWriteFile</a> (const char * filename, <br /> <a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)</pre>
<pre class="programlisting">int <a href="#virConfWriteMem">virConfWriteMem</a> (char * memory, <br /> int * len, <br /> <a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)</pre>
<h2>Description</h2>
<h3><a name="virConf" id="virConf">Structure virConf</a></h3><pre class="programlisting">Structure virConf<br />struct _virConf {
The content of this structure is not made public by the API.
}</pre>
a pointer to a parsed configuration file
<h3>Enum <a name="virConfType" id="virConfType">virConfType</a></h3><pre class="programlisting">Enum virConfType {
<a name="VIR_CONF_NONE" id="VIR_CONF_NONE">VIR_CONF_NONE</a> = 0 : undefined
<a name="VIR_CONF_LONG" id="VIR_CONF_LONG">VIR_CONF_LONG</a> = 1 : a long int
<a name="VIR_CONF_STRING" id="VIR_CONF_STRING">VIR_CONF_STRING</a> = 2 : a string
<a name="VIR_CONF_LIST" id="VIR_CONF_LIST">VIR_CONF_LIST</a> = 3 : a list
}
</pre><h3><a name="virConfValue" id="virConfValue">Structure virConfValue</a></h3><pre class="programlisting">Structure virConfValue<br />struct _virConfValue {
<a href="libvirt-conf.html#virConfType">virConfType</a> type : the <a href="libvirt-conf.html#virConfType">virConfType</a>
<a href="libvirt-conf.html#virConfValuePtr">virConfValuePtr</a> next : next element if in a list
long l : long integer
char * str : pointer to 0 terminated string
<a href="libvirt-conf.html#virConfValuePtr">virConfValuePtr</a> list : list of a list
}</pre><h3><a name="virConfFree" id="virConfFree"></a>Function: virConfFree</h3><pre class="programlisting">int virConfFree (<a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)<br />
</pre><p>Frees all data associated to the handle</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conf</tt></i>:</span></td><td>a configuration file handle</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConfGetValue" id="virConfGetValue"></a>Function: virConfGetValue</h3><pre class="programlisting"><a href="libvirt-conf.html#virConfValuePtr">virConfValuePtr</a> virConfGetValue (<a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf, <br /> const char * setting)<br />
</pre><p>Lookup the value associated to this entry in the configuration file</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conf</tt></i>:</span></td><td>a configuration file handle</td></tr><tr><td><span class="term"><i><tt>setting</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the value or NULL if the lookup failed, the data associated will be freed when virConfFree() is called</td></tr></tbody></table></div><h3><a name="virConfReadFile" id="virConfReadFile"></a>Function: virConfReadFile</h3><pre class="programlisting"><a href="libvirt-conf.html#virConfPtr">virConfPtr</a> virConfReadFile (const char * filename)<br />
</pre><p>Reads a configuration file.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>filename</tt></i>:</span></td><td>the path to the configuration file.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>an handle to lookup settings or NULL if it failed to read or parse the file, use virConfFree() to free the data.</td></tr></tbody></table></div><h3><a name="virConfReadMem" id="virConfReadMem"></a>Function: virConfReadMem</h3><pre class="programlisting"><a href="libvirt-conf.html#virConfPtr">virConfPtr</a> virConfReadMem (const char * memory, <br /> int len)<br />
</pre><p>Reads a configuration file loaded in memory. The string can be zero terminated in which case @len can be 0</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>pointer to the content of the configuration file</td></tr><tr><td><span class="term"><i><tt>len</tt></i>:</span></td><td>length in byte</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>an handle to lookup settings or NULL if it failed to parse the content, use virConfFree() to free the data.</td></tr></tbody></table></div><h3><a name="virConfWriteFile" id="virConfWriteFile"></a>Function: virConfWriteFile</h3><pre class="programlisting">int virConfWriteFile (const char * filename, <br /> <a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)<br />
</pre><p>Writes a configuration file back to a file.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>filename</tt></i>:</span></td><td>the path to the configuration file.</td></tr><tr><td><span class="term"><i><tt>conf</tt></i>:</span></td><td>the conf</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of bytes written or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConfWriteMem" id="virConfWriteMem"></a>Function: virConfWriteMem</h3><pre class="programlisting">int virConfWriteMem (char * memory, <br /> int * len, <br /> <a href="libvirt-conf.html#virConfPtr">virConfPtr</a> conf)<br />
</pre><p>Writes a configuration file back to a memory area. @len is an IN/OUT parameter, it indicates the size available in bytes, and on output the size required for the configuration file (even if the call fails due to insufficient space).</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>pointer to the memory to store the config file</td></tr><tr><td><span class="term"><i><tt>len</tt></i>:</span></td><td>pointer to the length in byte of the store, on output the size</td></tr><tr><td><span class="term"><i><tt>conf</tt></i>:</span></td><td>the conf</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of bytes written or -1 in case of error.</td></tr></tbody></table></div></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="../index.html">Home</a></li><li><a href="../html/index.html">API Menu</a></li><li><a href="../examples/index.html">C code examples</a></li><li><a href="../ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="../Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>

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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="../libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Reference Manual for libvirt</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Reference Manual for libvirt</h1><h2>Table of Contents</h2><ul><li><a href="libvirt-libvirt.html">libvirt</a>: core interfaces for the libvirt library</li><li><a href="libvirt-virterror.html">virterror</a>: error handling interfaces for the libvirt library</li></ul></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="../index.html">Home</a></li><li><a href="../html/index.html">API Menu</a></li><li><a href="../examples/index.html">C code examples</a></li><li><a href="../ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="../Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>

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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="../libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Module libvirt from libvirt</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Module libvirt from libvirt</h1><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="u" href="index.html"><img src="up.png" width="24" height="24" border="0" alt="Up" /></a></td><th align="left"><a href="index.html">API documentation</a></th><td><a accesskey="h" href="../index.html"><img src="home.png" width="24" height="24" border="0" alt="Home" /></a></td><th align="center"><a href="../index.html">The virtualization API</a></th><th align="right"><a href="libvirt-virterror.html">virterror</a></th><td><a accesskey="n" href="libvirt-virterror.html"><img src="right.png" width="24" height="24" border="0" alt="Next" /></a></td></tr></table><p>Provides the interfaces of the libvirt library to handle Xen domains from a process running in domain 0 </p><h2>Table of Contents</h2><pre class="programlisting">#define <a href="#LIBVIR_VERSION_NUMBER">LIBVIR_VERSION_NUMBER</a></pre><pre class="programlisting">#define <a href="#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a></pre><pre class="programlisting">#define <a href="#VIR_CPU_MAPLEN">VIR_CPU_MAPLEN</a></pre><pre class="programlisting">#define <a href="#VIR_CPU_USABLE">VIR_CPU_USABLE</a></pre><pre class="programlisting">#define <a href="#VIR_DOMAIN_SCHED_FIELD_LENGTH">VIR_DOMAIN_SCHED_FIELD_LENGTH</a></pre><pre class="programlisting">#define <a href="#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a></pre><pre class="programlisting">#define <a href="#VIR_NODEINFO_MAXCPUS">VIR_NODEINFO_MAXCPUS</a></pre><pre class="programlisting">#define <a href="#VIR_UNUSE_CPU">VIR_UNUSE_CPU</a></pre><pre class="programlisting">#define <a href="#VIR_USE_CPU">VIR_USE_CPU</a></pre><pre class="programlisting">#define <a href="#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a></pre><pre class="programlisting">#define <a href="#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a></pre><pre class="programlisting">Structure <a href="#virConnect">virConnect</a><br />struct _virConnect
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Structure <a href="#virConnectAuth">virConnectAuth</a><br />struct _virConnectAuth
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virConnectAuth">virConnectAuth</a> * <a name="virConnectAuthPtr" id="virConnectAuthPtr">virConnectAuthPtr</a>
</pre><pre class="programlisting">Structure <a href="#virConnectCredential">virConnectCredential</a><br />struct _virConnectCredential
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virConnectCredential">virConnectCredential</a> * <a name="virConnectCredentialPtr" id="virConnectCredentialPtr">virConnectCredentialPtr</a>
</pre><pre class="programlisting">Enum <a href="#virConnectCredentialType">virConnectCredentialType</a>
</pre><pre class="programlisting">Enum <a href="#virConnectFlags">virConnectFlags</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virConnect">virConnect</a> * <a name="virConnectPtr" id="virConnectPtr">virConnectPtr</a>
</pre><pre class="programlisting">Structure <a href="#virDomain">virDomain</a><br />struct _virDomain
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a> * <a name="virDomainBlockStatsPtr" id="virDomainBlockStatsPtr">virDomainBlockStatsPtr</a>
</pre><pre class="programlisting">Structure <a href="#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a><br />struct _virDomainBlockStats
</pre><pre class="programlisting">Enum <a href="#virDomainCreateFlags">virDomainCreateFlags</a>
</pre><pre class="programlisting">Structure <a href="#virDomainInfo">virDomainInfo</a><br />struct _virDomainInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> * <a name="virDomainInfoPtr" id="virDomainInfoPtr">virDomainInfoPtr</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a> * <a name="virDomainInterfaceStatsPtr" id="virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a>
</pre><pre class="programlisting">Structure <a href="#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a><br />struct _virDomainInterfaceStats
</pre><pre class="programlisting">Enum <a href="#virDomainMigrateFlags">virDomainMigrateFlags</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virDomain">virDomain</a> * <a name="virDomainPtr" id="virDomainPtr">virDomainPtr</a>
</pre><pre class="programlisting">Enum <a href="#virDomainState">virDomainState</a>
</pre><pre class="programlisting">Enum <a href="#virDomainXMLFlags">virDomainXMLFlags</a>
</pre><pre class="programlisting">Structure <a href="#virNetwork">virNetwork</a><br />struct _virNetwork
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virNetwork">virNetwork</a> * <a name="virNetworkPtr" id="virNetworkPtr">virNetworkPtr</a>
</pre><pre class="programlisting">Structure <a href="#virNodeInfo">virNodeInfo</a><br />struct _virNodeInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> * <a name="virNodeInfoPtr" id="virNodeInfoPtr">virNodeInfoPtr</a>
</pre><pre class="programlisting">Structure <a href="#virSchedParameter">virSchedParameter</a><br />struct _virSchedParameter
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a> * <a name="virSchedParameterPtr" id="virSchedParameterPtr">virSchedParameterPtr</a>
</pre><pre class="programlisting">Enum <a href="#virSchedParameterType">virSchedParameterType</a>
</pre><pre class="programlisting">Structure <a href="#virStoragePool">virStoragePool</a><br />struct _virStoragePool
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Enum <a href="#virStoragePoolBuildFlags">virStoragePoolBuildFlags</a>
</pre><pre class="programlisting">Enum <a href="#virStoragePoolDeleteFlags">virStoragePoolDeleteFlags</a>
</pre><pre class="programlisting">Structure <a href="#virStoragePoolInfo">virStoragePoolInfo</a><br />struct _virStoragePoolInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virStoragePoolInfo">virStoragePoolInfo</a> * <a name="virStoragePoolInfoPtr" id="virStoragePoolInfoPtr">virStoragePoolInfoPtr</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virStoragePool">virStoragePool</a> * <a name="virStoragePoolPtr" id="virStoragePoolPtr">virStoragePoolPtr</a>
</pre><pre class="programlisting">Enum <a href="#virStoragePoolState">virStoragePoolState</a>
</pre><pre class="programlisting">Structure <a href="#virStorageVol">virStorageVol</a><br />struct _virStorageVol
The content of this structure is not made public by the API.
</pre><pre class="programlisting">Enum <a href="#virStorageVolDeleteFlags">virStorageVolDeleteFlags</a>
</pre><pre class="programlisting">Structure <a href="#virStorageVolInfo">virStorageVolInfo</a><br />struct _virStorageVolInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virStorageVolInfo">virStorageVolInfo</a> * <a name="virStorageVolInfoPtr" id="virStorageVolInfoPtr">virStorageVolInfoPtr</a>
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virStorageVol">virStorageVol</a> * <a name="virStorageVolPtr" id="virStorageVolPtr">virStorageVolPtr</a>
</pre><pre class="programlisting">Enum <a href="#virStorageVolType">virStorageVolType</a>
</pre><pre class="programlisting">Structure <a href="#virVcpuInfo">virVcpuInfo</a><br />struct _virVcpuInfo
</pre><pre class="programlisting">Typedef <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> * <a name="virVcpuInfoPtr" id="virVcpuInfoPtr">virVcpuInfoPtr</a>
</pre><pre class="programlisting">Enum <a href="#virVcpuState">virVcpuState</a>
</pre><pre class="programlisting">Function type: <a href="#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a>
<html xmlns="http://www.w3.org/1999/xhtml"><!--
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Do not edit this file. Changes will be lost.
--><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="../main.css" /><link rel="SHORTCUT ICON" href="../32favicon.png" /><title>libvirt: Module libvirt from libvirt</title><meta name="description" content="libvirt, virtualization, virtualization API" /></head><body><div id="header"><div id="headerLogo"></div><div id="headerSearch"><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input id="query" name="query" type="text" size="12" value="" /><input id="submit" name="submit" type="submit" value="Search" /></form></div></div><div id="body"><div id="content"><h1>Module libvirt from libvirt</h1><p>Provides the interfaces of the libvirt library to handle Xen domains from a process running in domain 0 </p><h2>Table of Contents</h2><h3><a href="#macros">Macros</a></h3><pre>#define <a href="#LIBVIR_VERSION_NUMBER">LIBVIR_VERSION_NUMBER</a>
#define <a href="#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a>
#define <a href="#VIR_CPU_MAPLEN">VIR_CPU_MAPLEN</a>
#define <a href="#VIR_CPU_USABLE">VIR_CPU_USABLE</a>
#define <a href="#VIR_DOMAIN_SCHED_FIELD_LENGTH">VIR_DOMAIN_SCHED_FIELD_LENGTH</a>
#define <a href="#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a>
#define <a href="#VIR_NODEINFO_MAXCPUS">VIR_NODEINFO_MAXCPUS</a>
#define <a href="#VIR_UNUSE_CPU">VIR_UNUSE_CPU</a>
#define <a href="#VIR_USE_CPU">VIR_USE_CPU</a>
#define <a href="#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a>
#define <a href="#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a>
</pre><h3><a href="#types">Types</a></h3><pre>typedef struct _virConnect <a href="#virConnect">virConnect</a>
typedef struct _virConnectAuth <a href="#virConnectAuth">virConnectAuth</a>
typedef <a href="libvirt-libvirt.html#virConnectAuth">virConnectAuth</a> * <a name="virConnectAuthPtr" id="virConnectAuthPtr">virConnectAuthPtr</a>
typedef struct _virConnectCredential <a href="#virConnectCredential">virConnectCredential</a>
typedef <a href="libvirt-libvirt.html#virConnectCredential">virConnectCredential</a> * <a name="virConnectCredentialPtr" id="virConnectCredentialPtr">virConnectCredentialPtr</a>
typedef enum <a href="#virConnectCredentialType">virConnectCredentialType</a>
typedef enum <a href="#virConnectFlags">virConnectFlags</a>
typedef <a href="libvirt-libvirt.html#virConnect">virConnect</a> * <a name="virConnectPtr" id="virConnectPtr">virConnectPtr</a>
typedef struct _virDomain <a href="#virDomain">virDomain</a>
typedef <a href="libvirt-libvirt.html#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a> * <a name="virDomainBlockStatsPtr" id="virDomainBlockStatsPtr">virDomainBlockStatsPtr</a>
typedef struct _virDomainBlockStats <a href="#virDomainBlockStatsStruct">virDomainBlockStatsStruct</a>
typedef enum <a href="#virDomainCreateFlags">virDomainCreateFlags</a>
typedef struct _virDomainInfo <a href="#virDomainInfo">virDomainInfo</a>
typedef <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> * <a name="virDomainInfoPtr" id="virDomainInfoPtr">virDomainInfoPtr</a>
typedef <a href="libvirt-libvirt.html#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a> * <a name="virDomainInterfaceStatsPtr" id="virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a>
typedef struct _virDomainInterfaceStats <a href="#virDomainInterfaceStatsStruct">virDomainInterfaceStatsStruct</a>
typedef enum <a href="#virDomainMigrateFlags">virDomainMigrateFlags</a>
typedef <a href="libvirt-libvirt.html#virDomain">virDomain</a> * <a name="virDomainPtr" id="virDomainPtr">virDomainPtr</a>
typedef enum <a href="#virDomainState">virDomainState</a>
typedef enum <a href="#virDomainXMLFlags">virDomainXMLFlags</a>
typedef struct _virNetwork <a href="#virNetwork">virNetwork</a>
typedef <a href="libvirt-libvirt.html#virNetwork">virNetwork</a> * <a name="virNetworkPtr" id="virNetworkPtr">virNetworkPtr</a>
typedef struct _virNodeInfo <a href="#virNodeInfo">virNodeInfo</a>
typedef <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> * <a name="virNodeInfoPtr" id="virNodeInfoPtr">virNodeInfoPtr</a>
typedef struct _virSchedParameter <a href="#virSchedParameter">virSchedParameter</a>
typedef <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a> * <a name="virSchedParameterPtr" id="virSchedParameterPtr">virSchedParameterPtr</a>
typedef enum <a href="#virSchedParameterType">virSchedParameterType</a>
typedef struct _virStoragePool <a href="#virStoragePool">virStoragePool</a>
typedef enum <a href="#virStoragePoolBuildFlags">virStoragePoolBuildFlags</a>
typedef enum <a href="#virStoragePoolDeleteFlags">virStoragePoolDeleteFlags</a>
typedef struct _virStoragePoolInfo <a href="#virStoragePoolInfo">virStoragePoolInfo</a>
typedef <a href="libvirt-libvirt.html#virStoragePoolInfo">virStoragePoolInfo</a> * <a name="virStoragePoolInfoPtr" id="virStoragePoolInfoPtr">virStoragePoolInfoPtr</a>
typedef <a href="libvirt-libvirt.html#virStoragePool">virStoragePool</a> * <a name="virStoragePoolPtr" id="virStoragePoolPtr">virStoragePoolPtr</a>
typedef enum <a href="#virStoragePoolState">virStoragePoolState</a>
typedef struct _virStorageVol <a href="#virStorageVol">virStorageVol</a>
typedef enum <a href="#virStorageVolDeleteFlags">virStorageVolDeleteFlags</a>
typedef struct _virStorageVolInfo <a href="#virStorageVolInfo">virStorageVolInfo</a>
typedef <a href="libvirt-libvirt.html#virStorageVolInfo">virStorageVolInfo</a> * <a name="virStorageVolInfoPtr" id="virStorageVolInfoPtr">virStorageVolInfoPtr</a>
typedef <a href="libvirt-libvirt.html#virStorageVol">virStorageVol</a> * <a name="virStorageVolPtr" id="virStorageVolPtr">virStorageVolPtr</a>
typedef enum <a href="#virStorageVolType">virStorageVolType</a>
typedef struct _virVcpuInfo <a href="#virVcpuInfo">virVcpuInfo</a>
typedef <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> * <a name="virVcpuInfoPtr" id="virVcpuInfoPtr">virVcpuInfoPtr</a>
typedef enum <a href="#virVcpuState">virVcpuState</a>
</pre><h3><a href="#functions">Functions</a></h3><pre>typedef <a href="#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a>
int <a href="#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a> (<a href="libvirt-libvirt.html#virConnectCredentialPtr">virConnectCredentialPtr</a> cred, <br /> unsigned int ncred, <br /> void * cbdata)
</pre>
<pre class="programlisting">int <a href="#virConnectClose">virConnectClose</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">char * <a href="#virConnectGetCapabilities">virConnectGetCapabilities</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">char * <a href="#virConnectGetHostname">virConnectGetHostname</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectGetMaxVcpus">virConnectGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)</pre>
<pre class="programlisting">const char * <a href="#virConnectGetType">virConnectGetType</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">char * <a href="#virConnectGetURI">virConnectGetURI</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectGetVersion">virConnectGetVersion</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer)</pre>
<pre class="programlisting">int <a href="#virConnectListDefinedDomains">virConnectListDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectListDefinedNetworks">virConnectListDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectListDefinedStoragePools">virConnectListDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectListDomains">virConnectListDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids)</pre>
<pre class="programlisting">int <a href="#virConnectListNetworks">virConnectListNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectListStoragePools">virConnectListStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfDefinedDomains">virConnectNumOfDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfDefinedNetworks">virConnectNumOfDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfDefinedStoragePools">virConnectNumOfDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfDomains">virConnectNumOfDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfNetworks">virConnectNumOfNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virConnectNumOfStoragePools">virConnectNumOfStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpen">virConnectOpen</a> (const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenAuth">virConnectOpenAuth</a> (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenReadOnly">virConnectOpenReadOnly</a> (const char * name)</pre>
<pre class="programlisting">int <a href="#virDomainAttachDevice">virDomainAttachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)</pre>
<pre class="programlisting">int <a href="#virDomainBlockStats">virDomainBlockStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size)</pre>
<pre class="programlisting">int <a href="#virDomainCoreDump">virDomainCoreDump</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags)</pre>
<pre class="programlisting">int <a href="#virDomainCreate">virDomainCreate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainCreateLinux">virDomainCreateLinux</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainDefineXML">virDomainDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)</pre>
<pre class="programlisting">int <a href="#virDomainDestroy">virDomainDestroy</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainDetachDevice">virDomainDetachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)</pre>
<pre class="programlisting">int <a href="#virDomainFree">virDomainFree</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainGetAutostart">virDomainGetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virDomainGetConnect">virDomainGetConnect</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom)</pre>
<pre class="programlisting">unsigned int <a href="#virDomainGetID">virDomainGetID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainGetInfo">virDomainGetInfo</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info)</pre>
<pre class="programlisting">unsigned long <a href="#virDomainGetMaxMemory">virDomainGetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainGetMaxVcpus">virDomainGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">const char * <a href="#virDomainGetName">virDomainGetName</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">char * <a href="#virDomainGetOSType">virDomainGetOSType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainGetSchedulerParameters">virDomainGetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams)</pre>
<pre class="programlisting">char * <a href="#virDomainGetSchedulerType">virDomainGetSchedulerType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams)</pre>
<pre class="programlisting">int <a href="#virDomainGetUUID">virDomainGetUUID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid)</pre>
<pre class="programlisting">int <a href="#virDomainGetUUIDString">virDomainGetUUIDString</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf)</pre>
<pre class="programlisting">int <a href="#virDomainGetVcpus">virDomainGetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen)</pre>
<pre class="programlisting">char * <a href="#virDomainGetXMLDesc">virDomainGetXMLDesc</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags)</pre>
<pre class="programlisting">int <a href="#virDomainInterfaceStats">virDomainInterfaceStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByID">virDomainLookupByID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByName">virDomainLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUID">virDomainLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUIDString">virDomainLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainMigrate">virDomainMigrate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth)</pre>
<pre class="programlisting">int <a href="#virDomainPinVcpu">virDomainPinVcpu</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen)</pre>
<pre class="programlisting">int <a href="#virDomainReboot">virDomainReboot</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virDomainRestore">virDomainRestore</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from)</pre>
<pre class="programlisting">int <a href="#virDomainResume">virDomainResume</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainSave">virDomainSave</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to)</pre>
<pre class="programlisting">int <a href="#virDomainSetAutostart">virDomainSetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart)</pre>
<pre class="programlisting">int <a href="#virDomainSetMaxMemory">virDomainSetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)</pre>
<pre class="programlisting">int <a href="#virDomainSetMemory">virDomainSetMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)</pre>
<pre class="programlisting">int <a href="#virDomainSetSchedulerParameters">virDomainSetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams)</pre>
<pre class="programlisting">int <a href="#virDomainSetVcpus">virDomainSetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus)</pre>
<pre class="programlisting">int <a href="#virDomainShutdown">virDomainShutdown</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainSuspend">virDomainSuspend</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virDomainUndefine">virDomainUndefine</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)</pre>
<pre class="programlisting">int <a href="#virGetVersion">virGetVersion</a> (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer)</pre>
<pre class="programlisting">int <a href="#virInitialize">virInitialize</a> (void)</pre>
<pre class="programlisting">int <a href="#virNetworkCreate">virNetworkCreate</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkCreateXML">virNetworkCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkDefineXML">virNetworkDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)</pre>
<pre class="programlisting">int <a href="#virNetworkDestroy">virNetworkDestroy</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting">int <a href="#virNetworkFree">virNetworkFree</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting">int <a href="#virNetworkGetAutostart">virNetworkGetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart)</pre>
<pre class="programlisting">char * <a href="#virNetworkGetBridgeName">virNetworkGetBridgeName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virNetworkGetConnect">virNetworkGetConnect</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net)</pre>
<pre class="programlisting">const char * <a href="#virNetworkGetName">virNetworkGetName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting">int <a href="#virNetworkGetUUID">virNetworkGetUUID</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid)</pre>
<pre class="programlisting">int <a href="#virNetworkGetUUIDString">virNetworkGetUUIDString</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf)</pre>
<pre class="programlisting">char * <a href="#virNetworkGetXMLDesc">virNetworkGetXMLDesc</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByName">virNetworkLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUID">virNetworkLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUIDString">virNetworkLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)</pre>
<pre class="programlisting">int <a href="#virNetworkSetAutostart">virNetworkSetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart)</pre>
<pre class="programlisting">int <a href="#virNetworkUndefine">virNetworkUndefine</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)</pre>
<pre class="programlisting">int <a href="#virNodeGetCellsFreeMemory">virNodeGetCellsFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells)</pre>
<pre class="programlisting">unsigned long long <a href="#virNodeGetFreeMemory">virNodeGetFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)</pre>
<pre class="programlisting">int <a href="#virNodeGetInfo">virNodeGetInfo</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info)</pre>
<pre class="programlisting">int <a href="#virStoragePoolBuild">virStoragePoolBuild</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolCreate">virStoragePoolCreate</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolCreateXML">virStoragePoolCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolDefineXML">virStoragePoolDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolDelete">virStoragePoolDelete</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolDestroy">virStoragePoolDestroy</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolFree">virStoragePoolFree</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolGetAutostart">virStoragePoolGetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStoragePoolGetConnect">virStoragePoolGetConnect</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolGetInfo">virStoragePoolGetInfo</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info)</pre>
<pre class="programlisting">const char * <a href="#virStoragePoolGetName">virStoragePoolGetName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolGetUUID">virStoragePoolGetUUID</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid)</pre>
<pre class="programlisting">int <a href="#virStoragePoolGetUUIDString">virStoragePoolGetUUIDString</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf)</pre>
<pre class="programlisting">char * <a href="#virStoragePoolGetXMLDesc">virStoragePoolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolListVolumes">virStoragePoolListVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByName">virStoragePoolLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUID">virStoragePoolLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUIDString">virStoragePoolLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByVolume">virStoragePoolLookupByVolume</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">int <a href="#virStoragePoolNumOfVolumes">virStoragePoolNumOfVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting">int <a href="#virStoragePoolRefresh">virStoragePoolRefresh</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStoragePoolSetAutostart">virStoragePoolSetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart)</pre>
<pre class="programlisting">int <a href="#virStoragePoolUndefine">virStoragePoolUndefine</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolCreateXML">virStorageVolCreateXML</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStorageVolDelete">virStorageVolDelete</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)</pre>
<pre class="programlisting">int <a href="#virStorageVolFree">virStorageVolFree</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStorageVolGetConnect">virStorageVolGetConnect</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">int <a href="#virStorageVolGetInfo">virStorageVolGetInfo</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info)</pre>
<pre class="programlisting">const char * <a href="#virStorageVolGetKey">virStorageVolGetKey</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">const char * <a href="#virStorageVolGetName">virStorageVolGetName</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">char * <a href="#virStorageVolGetPath">virStorageVolGetPath</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)</pre>
<pre class="programlisting">char * <a href="#virStorageVolGetXMLDesc">virStorageVolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByKey">virStorageVolLookupByKey</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByName">virStorageVolLookupByName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)</pre>
<pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByPath">virStorageVolLookupByPath</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)</pre>
<h2>Description</h2>
<h3><a name="LIBVIR_VERSION_NUMBER" id="LIBVIR_VERSION_NUMBER"></a>Macro: LIBVIR_VERSION_NUMBER</h3><pre>#define LIBVIR_VERSION_NUMBER</pre><p>Macro providing the version of the library as version * 1,000,000 + minor * 1000 + micro</p>
<h3><a name="VIR_COPY_CPUMAP" id="VIR_COPY_CPUMAP"></a>Macro: VIR_COPY_CPUMAP</h3><pre>#define VIR_COPY_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a> macro extract the cpumap of the specified vcpu from cpumaps array and copy it into cpumap to be used later by virDomainPinVcpu() API.</p>
<h3><a name="VIR_CPU_MAPLEN" id="VIR_CPU_MAPLEN"></a>Macro: VIR_CPU_MAPLEN</h3><pre>#define VIR_CPU_MAPLEN</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. It returns the length (in bytes) required to store the complete CPU map between a single virtual &amp; all physical CPUs of a domain.</p>
<h3><a name="VIR_CPU_USABLE" id="VIR_CPU_USABLE"></a>Macro: VIR_CPU_USABLE</h3><pre>#define VIR_CPU_USABLE</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() API. <a href="libvirt-libvirt.html#VIR_CPU_USABLE">VIR_CPU_USABLE</a> macro returns a non zero value (true) if the cpu is usable by the vcpu, and 0 otherwise.</p>
<h3><a name="VIR_DOMAIN_SCHED_FIELD_LENGTH" id="VIR_DOMAIN_SCHED_FIELD_LENGTH"></a>Macro: VIR_DOMAIN_SCHED_FIELD_LENGTH</h3><pre>#define VIR_DOMAIN_SCHED_FIELD_LENGTH</pre><p>Macro providing the field length of <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a></p>
<h3><a name="VIR_GET_CPUMAP" id="VIR_GET_CPUMAP"></a>Macro: VIR_GET_CPUMAP</h3><pre>#define VIR_GET_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a> macro returns a pointer to the cpumap of the specified vcpu from cpumaps array.</p>
<h3><a name="VIR_NODEINFO_MAXCPUS" id="VIR_NODEINFO_MAXCPUS"></a>Macro: VIR_NODEINFO_MAXCPUS</h3><pre>#define VIR_NODEINFO_MAXCPUS</pre><p>This macro is to calculate the total number of CPUs supported but not necessary active in the host.</p>
<h3><a name="VIR_UNUSE_CPU" id="VIR_UNUSE_CPU"></a>Macro: VIR_UNUSE_CPU</h3><pre>#define VIR_UNUSE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro reset the bit (CPU not usable) of the related cpu in cpumap.</p>
<h3><a name="VIR_USE_CPU" id="VIR_USE_CPU"></a>Macro: VIR_USE_CPU</h3><pre>#define VIR_USE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro set the bit (CPU usable) of the related cpu in cpumap.</p>
<h3><a name="VIR_UUID_BUFLEN" id="VIR_UUID_BUFLEN"></a>Macro: VIR_UUID_BUFLEN</h3><pre>#define VIR_UUID_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUID()</p>
<h3><a name="VIR_UUID_STRING_BUFLEN" id="VIR_UUID_STRING_BUFLEN"></a>Macro: VIR_UUID_STRING_BUFLEN</h3><pre>#define VIR_UUID_STRING_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUIDString()</p>
<h3><a name="virConnect" id="virConnect">Structure virConnect</a></h3><pre class="programlisting">Structure virConnect<br />struct _virConnect {
The content of this structure is not made public by the API.
}</pre><h3><a name="virConnectAuth" id="virConnectAuth">Structure virConnectAuth</a></h3><pre class="programlisting">Structure virConnectAuth<br />struct _virConnectAuth {
int * credtype : List of supported virConnectCredentialT
unsigned int ncredtype
<a href="libvirt-libvirt.html#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a> cb : Callback used to collect credentials
void * cbdata
}</pre><h3><a name="virConnectCredential" id="virConnectCredential">Structure virConnectCredential</a></h3><pre class="programlisting">Structure virConnectCredential<br />struct _virConnectCredential {
int type : One of <a href="libvirt-libvirt.html#virConnectCredentialType">virConnectCredentialType</a> constan
const char * prompt : Prompt to show to user
const char * challenge : Additional challenge to show
const char * defresult : Optional default result
char * result : Result to be filled with user response
unsigned int resultlen : Length of the result
}</pre><h3>Enum <a name="virConnectCredentialType" id="virConnectCredentialType">virConnectCredentialType</a></h3><pre class="programlisting">Enum virConnectCredentialType {
<a name="VIR_CRED_USERNAME" id="VIR_CRED_USERNAME">VIR_CRED_USERNAME</a> = 1 : Identity to act as
<a name="VIR_CRED_AUTHNAME" id="VIR_CRED_AUTHNAME">VIR_CRED_AUTHNAME</a> = 2 : Identify to authorize as
<a name="VIR_CRED_LANGUAGE" id="VIR_CRED_LANGUAGE">VIR_CRED_LANGUAGE</a> = 3 : RFC 1766 languages, comma separated
<a name="VIR_CRED_CNONCE" id="VIR_CRED_CNONCE">VIR_CRED_CNONCE</a> = 4 : client supplies a nonce
<a name="VIR_CRED_PASSPHRASE" id="VIR_CRED_PASSPHRASE">VIR_CRED_PASSPHRASE</a> = 5 : Passphrase secret
<a name="VIR_CRED_ECHOPROMPT" id="VIR_CRED_ECHOPROMPT">VIR_CRED_ECHOPROMPT</a> = 6 : Challenge response
<a name="VIR_CRED_NOECHOPROMPT" id="VIR_CRED_NOECHOPROMPT">VIR_CRED_NOECHOPROMPT</a> = 7 : Challenge response
<a name="VIR_CRED_REALM" id="VIR_CRED_REALM">VIR_CRED_REALM</a> = 8 : Authentication realm
<a name="VIR_CRED_EXTERNAL" id="VIR_CRED_EXTERNAL">VIR_CRED_EXTERNAL</a> = 9 : Externally managed credential More may be added - expect the unexpected
int <a href="#virConnectClose">virConnectClose</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
char * <a href="#virConnectGetCapabilities">virConnectGetCapabilities</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
char * <a href="#virConnectGetHostname">virConnectGetHostname</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectGetMaxVcpus">virConnectGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)
const char * <a href="#virConnectGetType">virConnectGetType</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
char * <a href="#virConnectGetURI">virConnectGetURI</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectGetVersion">virConnectGetVersion</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer)
int <a href="#virConnectListDefinedDomains">virConnectListDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectListDefinedNetworks">virConnectListDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectListDefinedStoragePools">virConnectListDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectListDomains">virConnectListDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids)
int <a href="#virConnectListNetworks">virConnectListNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectListStoragePools">virConnectListStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)
int <a href="#virConnectNumOfDefinedDomains">virConnectNumOfDefinedDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfDefinedNetworks">virConnectNumOfDefinedNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfDefinedStoragePools">virConnectNumOfDefinedStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfDomains">virConnectNumOfDomains</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfNetworks">virConnectNumOfNetworks</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virConnectNumOfStoragePools">virConnectNumOfStoragePools</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpen">virConnectOpen</a> (const char * name)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenAuth">virConnectOpenAuth</a> (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virConnectOpenReadOnly">virConnectOpenReadOnly</a> (const char * name)
int <a href="#virDomainAttachDevice">virDomainAttachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)
int <a href="#virDomainBlockStats">virDomainBlockStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size)
int <a href="#virDomainCoreDump">virDomainCoreDump</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags)
int <a href="#virDomainCreate">virDomainCreate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainCreateLinux">virDomainCreateLinux</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainDefineXML">virDomainDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)
int <a href="#virDomainDestroy">virDomainDestroy</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainDetachDevice">virDomainDetachDevice</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)
int <a href="#virDomainFree">virDomainFree</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainGetAutostart">virDomainGetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virDomainGetConnect">virDomainGetConnect</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom)
unsigned int <a href="#virDomainGetID">virDomainGetID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainGetInfo">virDomainGetInfo</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info)
unsigned long <a href="#virDomainGetMaxMemory">virDomainGetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainGetMaxVcpus">virDomainGetMaxVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
const char * <a href="#virDomainGetName">virDomainGetName</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
char * <a href="#virDomainGetOSType">virDomainGetOSType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainGetSchedulerParameters">virDomainGetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams)
char * <a href="#virDomainGetSchedulerType">virDomainGetSchedulerType</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams)
int <a href="#virDomainGetUUID">virDomainGetUUID</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid)
int <a href="#virDomainGetUUIDString">virDomainGetUUIDString</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf)
int <a href="#virDomainGetVcpus">virDomainGetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen)
char * <a href="#virDomainGetXMLDesc">virDomainGetXMLDesc</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags)
int <a href="#virDomainInterfaceStats">virDomainInterfaceStats</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByID">virDomainLookupByID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByName">virDomainLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUID">virDomainLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainLookupByUUIDString">virDomainLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)
<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> <a href="#virDomainMigrate">virDomainMigrate</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth)
int <a href="#virDomainPinVcpu">virDomainPinVcpu</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen)
int <a href="#virDomainReboot">virDomainReboot</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags)
int <a href="#virDomainRestore">virDomainRestore</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from)
int <a href="#virDomainResume">virDomainResume</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainSave">virDomainSave</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to)
int <a href="#virDomainSetAutostart">virDomainSetAutostart</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart)
int <a href="#virDomainSetMaxMemory">virDomainSetMaxMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)
int <a href="#virDomainSetMemory">virDomainSetMemory</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)
int <a href="#virDomainSetSchedulerParameters">virDomainSetSchedulerParameters</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams)
int <a href="#virDomainSetVcpus">virDomainSetVcpus</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus)
int <a href="#virDomainShutdown">virDomainShutdown</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainSuspend">virDomainSuspend</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virDomainUndefine">virDomainUndefine</a> (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)
int <a href="#virGetVersion">virGetVersion</a> (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer)
int <a href="#virInitialize">virInitialize</a> (void)
int <a href="#virNetworkCreate">virNetworkCreate</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkCreateXML">virNetworkCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkDefineXML">virNetworkDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)
int <a href="#virNetworkDestroy">virNetworkDestroy</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
int <a href="#virNetworkFree">virNetworkFree</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
int <a href="#virNetworkGetAutostart">virNetworkGetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart)
char * <a href="#virNetworkGetBridgeName">virNetworkGetBridgeName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virNetworkGetConnect">virNetworkGetConnect</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net)
const char * <a href="#virNetworkGetName">virNetworkGetName</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
int <a href="#virNetworkGetUUID">virNetworkGetUUID</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid)
int <a href="#virNetworkGetUUIDString">virNetworkGetUUIDString</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf)
char * <a href="#virNetworkGetXMLDesc">virNetworkGetXMLDesc</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByName">virNetworkLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUID">virNetworkLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)
<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> <a href="#virNetworkLookupByUUIDString">virNetworkLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)
int <a href="#virNetworkSetAutostart">virNetworkSetAutostart</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart)
int <a href="#virNetworkUndefine">virNetworkUndefine</a> (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)
int <a href="#virNodeGetCellsFreeMemory">virNodeGetCellsFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells)
unsigned long long <a href="#virNodeGetFreeMemory">virNodeGetFreeMemory</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)
int <a href="#virNodeGetInfo">virNodeGetInfo</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info)
int <a href="#virStoragePoolBuild">virStoragePoolBuild</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
int <a href="#virStoragePoolCreate">virStoragePoolCreate</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolCreateXML">virStoragePoolCreateXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolDefineXML">virStoragePoolDefineXML</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags)
int <a href="#virStoragePoolDelete">virStoragePoolDelete</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
int <a href="#virStoragePoolDestroy">virStoragePoolDestroy</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolFree">virStoragePoolFree</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolGetAutostart">virStoragePoolGetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStoragePoolGetConnect">virStoragePoolGetConnect</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolGetInfo">virStoragePoolGetInfo</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info)
const char * <a href="#virStoragePoolGetName">virStoragePoolGetName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolGetUUID">virStoragePoolGetUUID</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid)
int <a href="#virStoragePoolGetUUIDString">virStoragePoolGetUUIDString</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf)
char * <a href="#virStoragePoolGetXMLDesc">virStoragePoolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
int <a href="#virStoragePoolListVolumes">virStoragePoolListVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByName">virStoragePoolLookupByName</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUID">virStoragePoolLookupByUUID</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByUUIDString">virStoragePoolLookupByUUIDString</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)
<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> <a href="#virStoragePoolLookupByVolume">virStoragePoolLookupByVolume</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
int <a href="#virStoragePoolNumOfVolumes">virStoragePoolNumOfVolumes</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
int <a href="#virStoragePoolRefresh">virStoragePoolRefresh</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)
int <a href="#virStoragePoolSetAutostart">virStoragePoolSetAutostart</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart)
int <a href="#virStoragePoolUndefine">virStoragePoolUndefine</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)
<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolCreateXML">virStorageVolCreateXML</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags)
int <a href="#virStorageVolDelete">virStorageVolDelete</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)
int <a href="#virStorageVolFree">virStorageVolFree</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> <a href="#virStorageVolGetConnect">virStorageVolGetConnect</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
int <a href="#virStorageVolGetInfo">virStorageVolGetInfo</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info)
const char * <a href="#virStorageVolGetKey">virStorageVolGetKey</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
const char * <a href="#virStorageVolGetName">virStorageVolGetName</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
char * <a href="#virStorageVolGetPath">virStorageVolGetPath</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)
char * <a href="#virStorageVolGetXMLDesc">virStorageVolGetXMLDesc</a> (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)
<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByKey">virStorageVolLookupByKey</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key)
<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByName">virStorageVolLookupByName</a> (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)
<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> <a href="#virStorageVolLookupByPath">virStorageVolLookupByPath</a> (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)
</pre><h2>Description</h2><h3><a name="macros" id="macros">Macros</a></h3><h3><a name="LIBVIR_VERSION_NUMBER" id="LIBVIR_VERSION_NUMBER"><code>LIBVIR_VERSION_NUMBER</code></a></h3><pre>#define LIBVIR_VERSION_NUMBER</pre><p>Macro providing the version of the library as version * 1,000,000 + minor * 1000 + micro</p><h3><a name="VIR_COPY_CPUMAP" id="VIR_COPY_CPUMAP"><code>VIR_COPY_CPUMAP</code></a></h3><pre>#define VIR_COPY_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_COPY_CPUMAP">VIR_COPY_CPUMAP</a> macro extract the cpumap of the specified vcpu from cpumaps array and copy it into cpumap to be used later by virDomainPinVcpu() API.</p><h3><a name="VIR_CPU_MAPLEN" id="VIR_CPU_MAPLEN"><code>VIR_CPU_MAPLEN</code></a></h3><pre>#define VIR_CPU_MAPLEN</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. It returns the length (in bytes) required to store the complete CPU map between a single virtual &amp; all physical CPUs of a domain.</p><h3><a name="VIR_CPU_USABLE" id="VIR_CPU_USABLE"><code>VIR_CPU_USABLE</code></a></h3><pre>#define VIR_CPU_USABLE</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() API. <a href="libvirt-libvirt.html#VIR_CPU_USABLE">VIR_CPU_USABLE</a> macro returns a non zero value (true) if the cpu is usable by the vcpu, and 0 otherwise.</p><h3><a name="VIR_DOMAIN_SCHED_FIELD_LENGTH" id="VIR_DOMAIN_SCHED_FIELD_LENGTH"><code>VIR_DOMAIN_SCHED_FIELD_LENGTH</code></a></h3><pre>#define VIR_DOMAIN_SCHED_FIELD_LENGTH</pre><p>Macro providing the field length of <a href="libvirt-libvirt.html#virSchedParameter">virSchedParameter</a></p><h3><a name="VIR_GET_CPUMAP" id="VIR_GET_CPUMAP"><code>VIR_GET_CPUMAP</code></a></h3><pre>#define VIR_GET_CPUMAP</pre><p>This macro is to be used in conjunction with virDomainGetVcpus() and virDomainPinVcpu() APIs. <a href="libvirt-libvirt.html#VIR_GET_CPUMAP">VIR_GET_CPUMAP</a> macro returns a pointer to the cpumap of the specified vcpu from cpumaps array.</p><h3><a name="VIR_NODEINFO_MAXCPUS" id="VIR_NODEINFO_MAXCPUS"><code>VIR_NODEINFO_MAXCPUS</code></a></h3><pre>#define VIR_NODEINFO_MAXCPUS</pre><p>This macro is to calculate the total number of CPUs supported but not necessary active in the host.</p><h3><a name="VIR_UNUSE_CPU" id="VIR_UNUSE_CPU"><code>VIR_UNUSE_CPU</code></a></h3><pre>#define VIR_UNUSE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro reset the bit (CPU not usable) of the related cpu in cpumap.</p><h3><a name="VIR_USE_CPU" id="VIR_USE_CPU"><code>VIR_USE_CPU</code></a></h3><pre>#define VIR_USE_CPU</pre><p>This macro is to be used in conjunction with virDomainPinVcpu() API. USE_CPU macro set the bit (CPU usable) of the related cpu in cpumap.</p><h3><a name="VIR_UUID_BUFLEN" id="VIR_UUID_BUFLEN"><code>VIR_UUID_BUFLEN</code></a></h3><pre>#define VIR_UUID_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUID()</p><h3><a name="VIR_UUID_STRING_BUFLEN" id="VIR_UUID_STRING_BUFLEN"><code>VIR_UUID_STRING_BUFLEN</code></a></h3><pre>#define VIR_UUID_STRING_BUFLEN</pre><p>This macro provides the length of the buffer required for virDomainGetUUIDString()</p><h3><a name="types" id="types">Types</a></h3><h3><a name="virConnect" id="virConnect"><code>virConnect</code></a></h3><div class="api"><pre>struct virConnect{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre><h3>Enum <a name="virConnectFlags" id="virConnectFlags">virConnectFlags</a></h3><pre class="programlisting">Enum virConnectFlags {
<a name="VIR_CONNECT_RO" id="VIR_CONNECT_RO">VIR_CONNECT_RO</a> = 1 : A readonly connection
</pre></div><h3><a name="virConnectAuth" id="virConnectAuth"><code>virConnectAuth</code></a></h3><div class="api"><pre>struct virConnectAuth{
</pre><table><tr><td>int *</td><td>credtype</td><td> : List of supported <a href="libvirt-libvirt.html#virConnectCredentialType">virConnectCredentialType</a> values</td></tr><tr><td>unsigned int</td><td>ncredtype</td></tr><tr><td><a href="libvirt-libvirt.html#virConnectAuthCallbackPtr">virConnectAuthCallbackPtr</a></td><td>cb</td><td> : Callback used to collect credentials</td></tr><tr><td>void *</td><td>cbdata</td></tr></table><pre>
}
</pre>
a virConnectPtr is pointer to a virConnect private structure, this is the type used to reference a connection to the Xen Hypervisor in the API.
<h3><a name="virDomain" id="virDomain">Structure virDomain</a></h3><pre class="programlisting">Structure virDomain<br />struct _virDomain {
The content of this structure is not made public by the API.
}</pre>
A pointer to a virDomainBlockStats structure
<h3><a name="virDomainBlockStatsStruct" id="virDomainBlockStatsStruct">Structure virDomainBlockStatsStruct</a></h3><pre class="programlisting">Structure virDomainBlockStatsStruct<br />struct _virDomainBlockStats {
long long rd_req : number of read requests
long long rd_bytes : number of read bytes
long long wr_req : number of write requests
long long wr_bytes : number of written bytes
long long errs : In Xen this returns the mysterious 'oo_
}</pre><h3>Enum <a name="virDomainCreateFlags" id="virDomainCreateFlags">virDomainCreateFlags</a></h3><pre class="programlisting">Enum virDomainCreateFlags {
<a name="VIR_DOMAIN_NONE" id="VIR_DOMAIN_NONE">VIR_DOMAIN_NONE</a> = 0
</pre></div><h3><a name="virConnectCredential" id="virConnectCredential"><code>virConnectCredential</code></a></h3><div class="api"><pre>struct virConnectCredential{
</pre><table><tr><td>int</td><td>type</td><td> : One of <a href="libvirt-libvirt.html#virConnectCredentialType">virConnectCredentialType</a> constants</td></tr><tr><td>const char *</td><td>prompt</td><td> : Prompt to show to user</td></tr><tr><td>const char *</td><td>challenge</td><td> : Additional challenge to show</td></tr><tr><td>const char *</td><td>defresult</td><td> : Optional default result</td></tr><tr><td>char *</td><td>result</td><td> : Result to be filled with user response (or defresult)</td></tr><tr><td>unsigned int</td><td>resultlen</td><td> : Length of the result</td></tr></table><pre>
}
</pre><h3><a name="virDomainInfo" id="virDomainInfo">Structure virDomainInfo</a></h3><pre class="programlisting">Structure virDomainInfo<br />struct _virDomainInfo {
unsigned char state : the running state, one of virDomainFlag
unsigned long maxMem : the maximum memory in KBytes allowed
unsigned long memory : the memory in KBytes used by the domain
unsigned short nrVirtCpu : the number of virtual CPUs for the doma
unsigned long long cpuTime : the CPU time used in nanoseconds
}</pre>
a virDomainInfoPtr is a pointer to a virDomainInfo structure.
A pointer to a virDomainInterfaceStats structure
<h3><a name="virDomainInterfaceStatsStruct" id="virDomainInterfaceStatsStruct">Structure virDomainInterfaceStatsStruct</a></h3><pre class="programlisting">Structure virDomainInterfaceStatsStruct<br />struct _virDomainInterfaceStats {
long long rx_bytes
long long rx_packets
long long rx_errs
long long rx_drop
long long tx_bytes
long long tx_packets
long long tx_errs
long long tx_drop
}</pre><h3>Enum <a name="virDomainMigrateFlags" id="virDomainMigrateFlags">virDomainMigrateFlags</a></h3><pre class="programlisting">Enum virDomainMigrateFlags {
<a name="VIR_MIGRATE_LIVE" id="VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a> = 1 : live migration
</pre></div><h3><a name="virConnectCredentialType" id="virConnectCredentialType"><code>virConnectCredentialType</code></a></h3><div class="api"><pre>enum virConnectCredentialType {
</pre><table><tr><td><a name="VIR_CRED_USERNAME" id="VIR_CRED_USERNAME">VIR_CRED_USERNAME</a></td><td> = </td><td>1</td><td> : Identity to act as</td></tr><tr><td><a name="VIR_CRED_AUTHNAME" id="VIR_CRED_AUTHNAME">VIR_CRED_AUTHNAME</a></td><td> = </td><td>2</td><td> : Identify to authorize as</td></tr><tr><td><a name="VIR_CRED_LANGUAGE" id="VIR_CRED_LANGUAGE">VIR_CRED_LANGUAGE</a></td><td> = </td><td>3</td><td> : RFC 1766 languages, comma separated</td></tr><tr><td><a name="VIR_CRED_CNONCE" id="VIR_CRED_CNONCE">VIR_CRED_CNONCE</a></td><td> = </td><td>4</td><td> : client supplies a nonce</td></tr><tr><td><a name="VIR_CRED_PASSPHRASE" id="VIR_CRED_PASSPHRASE">VIR_CRED_PASSPHRASE</a></td><td> = </td><td>5</td><td> : Passphrase secret</td></tr><tr><td><a name="VIR_CRED_ECHOPROMPT" id="VIR_CRED_ECHOPROMPT">VIR_CRED_ECHOPROMPT</a></td><td> = </td><td>6</td><td> : Challenge response</td></tr><tr><td><a name="VIR_CRED_NOECHOPROMPT" id="VIR_CRED_NOECHOPROMPT">VIR_CRED_NOECHOPROMPT</a></td><td> = </td><td>7</td><td> : Challenge response</td></tr><tr><td><a name="VIR_CRED_REALM" id="VIR_CRED_REALM">VIR_CRED_REALM</a></td><td> = </td><td>8</td><td> : Authentication realm</td></tr><tr><td><a name="VIR_CRED_EXTERNAL" id="VIR_CRED_EXTERNAL">VIR_CRED_EXTERNAL</a></td><td> = </td><td>9</td><td> : Externally managed credential More may be added - expect the unexpected</td></tr></table><pre>}
</pre></div><h3><a name="virConnectFlags" id="virConnectFlags"><code>virConnectFlags</code></a></h3><div class="api"><pre>enum virConnectFlags {
</pre><table><tr><td><a name="VIR_CONNECT_RO" id="VIR_CONNECT_RO">VIR_CONNECT_RO</a></td><td> = </td><td>1</td><td> : A readonly connection</td></tr></table><pre>}
</pre></div><h3><a name="virDomain" id="virDomain"><code>virDomain</code></a></h3><div class="api"><pre>struct virDomain{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre>
a virDomainPtr is pointer to a virDomain private structure, this is the type used to reference a Xen domain in the API.
<h3>Enum <a name="virDomainState" id="virDomainState">virDomainState</a></h3><pre class="programlisting">Enum virDomainState {
<a name="VIR_DOMAIN_NOSTATE" id="VIR_DOMAIN_NOSTATE">VIR_DOMAIN_NOSTATE</a> = 0 : no state
<a name="VIR_DOMAIN_RUNNING" id="VIR_DOMAIN_RUNNING">VIR_DOMAIN_RUNNING</a> = 1 : the domain is running
<a name="VIR_DOMAIN_BLOCKED" id="VIR_DOMAIN_BLOCKED">VIR_DOMAIN_BLOCKED</a> = 2 : the domain is blocked on resource
<a name="VIR_DOMAIN_PAUSED" id="VIR_DOMAIN_PAUSED">VIR_DOMAIN_PAUSED</a> = 3 : the domain is paused by user
<a name="VIR_DOMAIN_SHUTDOWN" id="VIR_DOMAIN_SHUTDOWN">VIR_DOMAIN_SHUTDOWN</a> = 4 : the domain is being shut down
<a name="VIR_DOMAIN_SHUTOFF" id="VIR_DOMAIN_SHUTOFF">VIR_DOMAIN_SHUTOFF</a> = 5 : the domain is shut off
<a name="VIR_DOMAIN_CRASHED" id="VIR_DOMAIN_CRASHED">VIR_DOMAIN_CRASHED</a> = 6 : the domain is crashed
</pre></div><h3><a name="virDomainBlockStatsStruct" id="virDomainBlockStatsStruct"><code>virDomainBlockStatsStruct</code></a></h3><div class="api"><pre>struct virDomainBlockStatsStruct{
</pre><table><tr><td>long long</td><td>rd_req</td><td> : number of read requests</td></tr><tr><td>long long</td><td>rd_bytes</td><td> : number of read bytes</td></tr><tr><td>long long</td><td>wr_req</td><td> : number of write requests</td></tr><tr><td>long long</td><td>wr_bytes</td><td> : number of written bytes</td></tr><tr><td>long long</td><td>errs</td><td> : In Xen this returns the mysterious 'oo_req'.</td></tr></table><pre>
}
</pre><h3>Enum <a name="virDomainXMLFlags" id="virDomainXMLFlags">virDomainXMLFlags</a></h3><pre class="programlisting">Enum virDomainXMLFlags {
<a name="VIR_DOMAIN_XML_SECURE" id="VIR_DOMAIN_XML_SECURE">VIR_DOMAIN_XML_SECURE</a> = 1 : dump security sensitive information too
<a name="VIR_DOMAIN_XML_INACTIVE" id="VIR_DOMAIN_XML_INACTIVE">VIR_DOMAIN_XML_INACTIVE</a> = 2 : dump inactive domain information
</pre></div><h3><a name="virDomainCreateFlags" id="virDomainCreateFlags"><code>virDomainCreateFlags</code></a></h3><div class="api"><pre>enum virDomainCreateFlags {
</pre><table><tr><td><a name="VIR_DOMAIN_NONE" id="VIR_DOMAIN_NONE">VIR_DOMAIN_NONE</a></td><td> = </td><td>0</td></tr></table><pre>}
</pre></div><h3><a name="virDomainInfo" id="virDomainInfo"><code>virDomainInfo</code></a></h3><div class="api"><pre>struct virDomainInfo{
</pre><table><tr><td>unsigned char</td><td>state</td><td> : the running state, one of virDomainFlags</td></tr><tr><td>unsigned long</td><td>maxMem</td><td> : the maximum memory in KBytes allowed</td></tr><tr><td>unsigned long</td><td>memory</td><td> : the memory in KBytes used by the domain</td></tr><tr><td>unsigned short</td><td>nrVirtCpu</td><td> : the number of virtual CPUs for the domain</td></tr><tr><td>unsigned long long</td><td>cpuTime</td><td> : the CPU time used in nanoseconds</td></tr></table><pre>
}
</pre><h3><a name="virNetwork" id="virNetwork">Structure virNetwork</a></h3><pre class="programlisting">Structure virNetwork<br />struct _virNetwork {
The content of this structure is not made public by the API.
}</pre>
a virNetworkPtr is pointer to a virNetwork private structure, this is the type used to reference a virtual network in the API.
<h3><a name="virNodeInfo" id="virNodeInfo">Structure virNodeInfo</a></h3><pre class="programlisting">Structure virNodeInfo<br />struct _virNodeInfo {
charmodel[32] model : string indicating the CPU model
unsigned long memory : memory size in kilobytes
unsigned int cpus : the number of active CPUs
unsigned int mhz : expected CPU frequency
unsigned int nodes : the number of NUMA cell, 1 for uniform
unsigned int sockets : number of CPU socket per node
unsigned int cores : number of core per socket
unsigned int threads : number of threads per core
}</pre>
a virNodeInfoPtr is a pointer to a virNodeInfo structure.
<h3><a name="virSchedParameter" id="virSchedParameter">Structure virSchedParameter</a></h3><pre class="programlisting">Structure virSchedParameter<br />struct _virSchedParameter {
charfield[VIR_DOMAIN_SCHED_FIELD_LENGTH] field : parameter name
int type : parameter type
}</pre>
a virSchedParameterPtr is a pointer to a virSchedParameter structure.
<h3>Enum <a name="virSchedParameterType" id="virSchedParameterType">virSchedParameterType</a></h3><pre class="programlisting">Enum virSchedParameterType {
<a name="VIR_DOMAIN_SCHED_FIELD_INT" id="VIR_DOMAIN_SCHED_FIELD_INT">VIR_DOMAIN_SCHED_FIELD_INT</a> = 1 : integer case
<a name="VIR_DOMAIN_SCHED_FIELD_UINT" id="VIR_DOMAIN_SCHED_FIELD_UINT">VIR_DOMAIN_SCHED_FIELD_UINT</a> = 2 : unsigned integer case
<a name="VIR_DOMAIN_SCHED_FIELD_LLONG" id="VIR_DOMAIN_SCHED_FIELD_LLONG">VIR_DOMAIN_SCHED_FIELD_LLONG</a> = 3 : long long case
<a name="VIR_DOMAIN_SCHED_FIELD_ULLONG" id="VIR_DOMAIN_SCHED_FIELD_ULLONG">VIR_DOMAIN_SCHED_FIELD_ULLONG</a> = 4 : unsigned long long case
<a name="VIR_DOMAIN_SCHED_FIELD_DOUBLE" id="VIR_DOMAIN_SCHED_FIELD_DOUBLE">VIR_DOMAIN_SCHED_FIELD_DOUBLE</a> = 5 : double case
<a name="VIR_DOMAIN_SCHED_FIELD_BOOLEAN" id="VIR_DOMAIN_SCHED_FIELD_BOOLEAN">VIR_DOMAIN_SCHED_FIELD_BOOLEAN</a> = 6 : boolean(character) case
</pre></div><h3><a name="virDomainInterfaceStatsStruct" id="virDomainInterfaceStatsStruct"><code>virDomainInterfaceStatsStruct</code></a></h3><div class="api"><pre>struct virDomainInterfaceStatsStruct{
</pre><table><tr><td>long long</td><td>rx_bytes</td></tr><tr><td>long long</td><td>rx_packets</td></tr><tr><td>long long</td><td>rx_errs</td></tr><tr><td>long long</td><td>rx_drop</td></tr><tr><td>long long</td><td>tx_bytes</td></tr><tr><td>long long</td><td>tx_packets</td></tr><tr><td>long long</td><td>tx_errs</td></tr><tr><td>long long</td><td>tx_drop</td></tr></table><pre>
}
</pre><h3><a name="virStoragePool" id="virStoragePool">Structure virStoragePool</a></h3><pre class="programlisting">Structure virStoragePool<br />struct _virStoragePool {
The content of this structure is not made public by the API.
}</pre><h3>Enum <a name="virStoragePoolBuildFlags" id="virStoragePoolBuildFlags">virStoragePoolBuildFlags</a></h3><pre class="programlisting">Enum virStoragePoolBuildFlags {
<a name="VIR_STORAGE_POOL_BUILD_NEW" id="VIR_STORAGE_POOL_BUILD_NEW">VIR_STORAGE_POOL_BUILD_NEW</a> = 0 : Regular build from scratch
<a name="VIR_STORAGE_POOL_BUILD_REPAIR" id="VIR_STORAGE_POOL_BUILD_REPAIR">VIR_STORAGE_POOL_BUILD_REPAIR</a> = 1 : Repair / reinitialize
<a name="VIR_STORAGE_POOL_BUILD_RESIZE" id="VIR_STORAGE_POOL_BUILD_RESIZE">VIR_STORAGE_POOL_BUILD_RESIZE</a> = 2 : Extend existing pool
</pre></div><h3><a name="virDomainMigrateFlags" id="virDomainMigrateFlags"><code>virDomainMigrateFlags</code></a></h3><div class="api"><pre>enum virDomainMigrateFlags {
</pre><table><tr><td><a name="VIR_MIGRATE_LIVE" id="VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a></td><td> = </td><td>1</td><td> : live migration</td></tr></table><pre>}
</pre></div><h3><a name="virDomainState" id="virDomainState"><code>virDomainState</code></a></h3><div class="api"><pre>enum virDomainState {
</pre><table><tr><td><a name="VIR_DOMAIN_NOSTATE" id="VIR_DOMAIN_NOSTATE">VIR_DOMAIN_NOSTATE</a></td><td> = </td><td>0</td><td> : no state</td></tr><tr><td><a name="VIR_DOMAIN_RUNNING" id="VIR_DOMAIN_RUNNING">VIR_DOMAIN_RUNNING</a></td><td> = </td><td>1</td><td> : the domain is running</td></tr><tr><td><a name="VIR_DOMAIN_BLOCKED" id="VIR_DOMAIN_BLOCKED">VIR_DOMAIN_BLOCKED</a></td><td> = </td><td>2</td><td> : the domain is blocked on resource</td></tr><tr><td><a name="VIR_DOMAIN_PAUSED" id="VIR_DOMAIN_PAUSED">VIR_DOMAIN_PAUSED</a></td><td> = </td><td>3</td><td> : the domain is paused by user</td></tr><tr><td><a name="VIR_DOMAIN_SHUTDOWN" id="VIR_DOMAIN_SHUTDOWN">VIR_DOMAIN_SHUTDOWN</a></td><td> = </td><td>4</td><td> : the domain is being shut down</td></tr><tr><td><a name="VIR_DOMAIN_SHUTOFF" id="VIR_DOMAIN_SHUTOFF">VIR_DOMAIN_SHUTOFF</a></td><td> = </td><td>5</td><td> : the domain is shut off</td></tr><tr><td><a name="VIR_DOMAIN_CRASHED" id="VIR_DOMAIN_CRASHED">VIR_DOMAIN_CRASHED</a></td><td> = </td><td>6</td><td> : the domain is crashed</td></tr></table><pre>}
</pre></div><h3><a name="virDomainXMLFlags" id="virDomainXMLFlags"><code>virDomainXMLFlags</code></a></h3><div class="api"><pre>enum virDomainXMLFlags {
</pre><table><tr><td><a name="VIR_DOMAIN_XML_SECURE" id="VIR_DOMAIN_XML_SECURE">VIR_DOMAIN_XML_SECURE</a></td><td> = </td><td>1</td><td> : dump security sensitive information too</td></tr><tr><td><a name="VIR_DOMAIN_XML_INACTIVE" id="VIR_DOMAIN_XML_INACTIVE">VIR_DOMAIN_XML_INACTIVE</a></td><td> = </td><td>2</td><td> : dump inactive domain information</td></tr></table><pre>}
</pre></div><h3><a name="virNetwork" id="virNetwork"><code>virNetwork</code></a></h3><div class="api"><pre>struct virNetwork{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre><h3>Enum <a name="virStoragePoolDeleteFlags" id="virStoragePoolDeleteFlags">virStoragePoolDeleteFlags</a></h3><pre class="programlisting">Enum virStoragePoolDeleteFlags {
<a name="VIR_STORAGE_POOL_DELETE_NORMAL" id="VIR_STORAGE_POOL_DELETE_NORMAL">VIR_STORAGE_POOL_DELETE_NORMAL</a> = 0 : Delete metadata only (fast)
<a name="VIR_STORAGE_POOL_DELETE_ZEROED" id="VIR_STORAGE_POOL_DELETE_ZEROED">VIR_STORAGE_POOL_DELETE_ZEROED</a> = 1 : Clear all data to zeros (slow)
</pre></div><h3><a name="virNodeInfo" id="virNodeInfo"><code>virNodeInfo</code></a></h3><div class="api"><pre>struct virNodeInfo{
</pre><table><tr><td>charmodel[32]</td><td>model</td><td> : string indicating the CPU model</td></tr><tr><td>unsigned long</td><td>memory</td><td> : memory size in kilobytes</td></tr><tr><td>unsigned int</td><td>cpus</td><td> : the number of active CPUs</td></tr><tr><td>unsigned int</td><td>mhz</td><td> : expected CPU frequency</td></tr><tr><td>unsigned int</td><td>nodes</td><td> : the number of NUMA cell, 1 for uniform mem access</td></tr><tr><td>unsigned int</td><td>sockets</td><td> : number of CPU socket per node</td></tr><tr><td>unsigned int</td><td>cores</td><td> : number of core per socket</td></tr><tr><td>unsigned int</td><td>threads</td><td> : number of threads per core</td></tr></table><pre>
}
</pre><h3><a name="virStoragePoolInfo" id="virStoragePoolInfo">Structure virStoragePoolInfo</a></h3><pre class="programlisting">Structure virStoragePoolInfo<br />struct _virStoragePoolInfo {
int state : <a href="libvirt-libvirt.html#virStoragePoolState">virStoragePoolState</a> flags
unsigned long long capacity : Logical size bytes
unsigned long long allocation : Current allocation bytes
unsigned long long available : Remaining free space bytes
}</pre>
a virStoragePoolPtr is pointer to a virStoragePool private structure, this is the type used to reference a storage pool in the API.
<h3>Enum <a name="virStoragePoolState" id="virStoragePoolState">virStoragePoolState</a></h3><pre class="programlisting">Enum virStoragePoolState {
<a name="VIR_STORAGE_POOL_INACTIVE" id="VIR_STORAGE_POOL_INACTIVE">VIR_STORAGE_POOL_INACTIVE</a> = 0 : Not running
<a name="VIR_STORAGE_POOL_BUILDING" id="VIR_STORAGE_POOL_BUILDING">VIR_STORAGE_POOL_BUILDING</a> = 1 : Initializing pool, not available
<a name="VIR_STORAGE_POOL_RUNNING" id="VIR_STORAGE_POOL_RUNNING">VIR_STORAGE_POOL_RUNNING</a> = 2 : Running normally
<a name="VIR_STORAGE_POOL_DEGRADED" id="VIR_STORAGE_POOL_DEGRADED">VIR_STORAGE_POOL_DEGRADED</a> = 3 : Running degraded
</pre></div><h3><a name="virSchedParameter" id="virSchedParameter"><code>virSchedParameter</code></a></h3><div class="api"><pre>struct virSchedParameter{
</pre><table><tr><td>charfield[VIR_DOMAIN_SCHED_FIELD_LENGTH]</td><td>field</td><td> : parameter name</td></tr><tr><td>int</td><td>type</td><td> : parameter type</td></tr></table><pre>
}
</pre><h3><a name="virStorageVol" id="virStorageVol">Structure virStorageVol</a></h3><pre class="programlisting">Structure virStorageVol<br />struct _virStorageVol {
The content of this structure is not made public by the API.
}</pre><h3>Enum <a name="virStorageVolDeleteFlags" id="virStorageVolDeleteFlags">virStorageVolDeleteFlags</a></h3><pre class="programlisting">Enum virStorageVolDeleteFlags {
<a name="VIR_STORAGE_VOL_DELETE_NORMAL" id="VIR_STORAGE_VOL_DELETE_NORMAL">VIR_STORAGE_VOL_DELETE_NORMAL</a> = 0 : Delete metadata only (fast)
<a name="VIR_STORAGE_VOL_DELETE_ZEROED" id="VIR_STORAGE_VOL_DELETE_ZEROED">VIR_STORAGE_VOL_DELETE_ZEROED</a> = 1 : Clear all data to zeros (slow)
</pre></div><h3><a name="virSchedParameterType" id="virSchedParameterType"><code>virSchedParameterType</code></a></h3><div class="api"><pre>enum virSchedParameterType {
</pre><table><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_INT" id="VIR_DOMAIN_SCHED_FIELD_INT">VIR_DOMAIN_SCHED_FIELD_INT</a></td><td> = </td><td>1</td><td> : integer case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_UINT" id="VIR_DOMAIN_SCHED_FIELD_UINT">VIR_DOMAIN_SCHED_FIELD_UINT</a></td><td> = </td><td>2</td><td> : unsigned integer case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_LLONG" id="VIR_DOMAIN_SCHED_FIELD_LLONG">VIR_DOMAIN_SCHED_FIELD_LLONG</a></td><td> = </td><td>3</td><td> : long long case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_ULLONG" id="VIR_DOMAIN_SCHED_FIELD_ULLONG">VIR_DOMAIN_SCHED_FIELD_ULLONG</a></td><td> = </td><td>4</td><td> : unsigned long long case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_DOUBLE" id="VIR_DOMAIN_SCHED_FIELD_DOUBLE">VIR_DOMAIN_SCHED_FIELD_DOUBLE</a></td><td> = </td><td>5</td><td> : double case</td></tr><tr><td><a name="VIR_DOMAIN_SCHED_FIELD_BOOLEAN" id="VIR_DOMAIN_SCHED_FIELD_BOOLEAN">VIR_DOMAIN_SCHED_FIELD_BOOLEAN</a></td><td> = </td><td>6</td><td> : boolean(character) case</td></tr></table><pre>}
</pre></div><h3><a name="virStoragePool" id="virStoragePool"><code>virStoragePool</code></a></h3><div class="api"><pre>struct virStoragePool{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre><h3><a name="virStorageVolInfo" id="virStorageVolInfo">Structure virStorageVolInfo</a></h3><pre class="programlisting">Structure virStorageVolInfo<br />struct _virStorageVolInfo {
int type : <a href="libvirt-libvirt.html#virStorageVolType">virStorageVolType</a> flags
unsigned long long capacity : Logical size bytes
unsigned long long allocation : Current allocation bytes
}</pre>
a virStorageVolPtr is pointer to a virStorageVol private structure, this is the type used to reference a storage volume in the API.
<h3>Enum <a name="virStorageVolType" id="virStorageVolType">virStorageVolType</a></h3><pre class="programlisting">Enum virStorageVolType {
<a name="VIR_STORAGE_VOL_FILE" id="VIR_STORAGE_VOL_FILE">VIR_STORAGE_VOL_FILE</a> = 0 : Regular file based volumes
<a name="VIR_STORAGE_VOL_BLOCK" id="VIR_STORAGE_VOL_BLOCK">VIR_STORAGE_VOL_BLOCK</a> = 1 : Block based volumes
</pre></div><h3><a name="virStoragePoolBuildFlags" id="virStoragePoolBuildFlags"><code>virStoragePoolBuildFlags</code></a></h3><div class="api"><pre>enum virStoragePoolBuildFlags {
</pre><table><tr><td><a name="VIR_STORAGE_POOL_BUILD_NEW" id="VIR_STORAGE_POOL_BUILD_NEW">VIR_STORAGE_POOL_BUILD_NEW</a></td><td> = </td><td>0</td><td> : Regular build from scratch</td></tr><tr><td><a name="VIR_STORAGE_POOL_BUILD_REPAIR" id="VIR_STORAGE_POOL_BUILD_REPAIR">VIR_STORAGE_POOL_BUILD_REPAIR</a></td><td> = </td><td>1</td><td> : Repair / reinitialize</td></tr><tr><td><a name="VIR_STORAGE_POOL_BUILD_RESIZE" id="VIR_STORAGE_POOL_BUILD_RESIZE">VIR_STORAGE_POOL_BUILD_RESIZE</a></td><td> = </td><td>2</td><td> : Extend existing pool</td></tr></table><pre>}
</pre></div><h3><a name="virStoragePoolDeleteFlags" id="virStoragePoolDeleteFlags"><code>virStoragePoolDeleteFlags</code></a></h3><div class="api"><pre>enum virStoragePoolDeleteFlags {
</pre><table><tr><td><a name="VIR_STORAGE_POOL_DELETE_NORMAL" id="VIR_STORAGE_POOL_DELETE_NORMAL">VIR_STORAGE_POOL_DELETE_NORMAL</a></td><td> = </td><td>0</td><td> : Delete metadata only (fast)</td></tr><tr><td><a name="VIR_STORAGE_POOL_DELETE_ZEROED" id="VIR_STORAGE_POOL_DELETE_ZEROED">VIR_STORAGE_POOL_DELETE_ZEROED</a></td><td> = </td><td>1</td><td> : Clear all data to zeros (slow)</td></tr></table><pre>}
</pre></div><h3><a name="virStoragePoolInfo" id="virStoragePoolInfo"><code>virStoragePoolInfo</code></a></h3><div class="api"><pre>struct virStoragePoolInfo{
</pre><table><tr><td>int</td><td>state</td><td> : <a href="libvirt-libvirt.html#virStoragePoolState">virStoragePoolState</a> flags</td></tr><tr><td>unsigned long long</td><td>capacity</td><td> : Logical size bytes</td></tr><tr><td>unsigned long long</td><td>allocation</td><td> : Current allocation bytes</td></tr><tr><td>unsigned long long</td><td>available</td><td> : Remaining free space bytes</td></tr></table><pre>
}
</pre><h3><a name="virVcpuInfo" id="virVcpuInfo">Structure virVcpuInfo</a></h3><pre class="programlisting">Structure virVcpuInfo<br />struct _virVcpuInfo {
unsigned int number : virtual CPU number
int state : value from <a href="libvirt-libvirt.html#virVcpuState">virVcpuState</a>
unsigned long long cpuTime : CPU time used, in nanoseconds
int cpu : real CPU number, or -1 if offline
}</pre><h3>Enum <a name="virVcpuState" id="virVcpuState">virVcpuState</a></h3><pre class="programlisting">Enum virVcpuState {
<a name="VIR_VCPU_OFFLINE" id="VIR_VCPU_OFFLINE">VIR_VCPU_OFFLINE</a> = 0 : the virtual CPU is offline
<a name="VIR_VCPU_RUNNING" id="VIR_VCPU_RUNNING">VIR_VCPU_RUNNING</a> = 1 : the virtual CPU is running
<a name="VIR_VCPU_BLOCKED" id="VIR_VCPU_BLOCKED">VIR_VCPU_BLOCKED</a> = 2 : the virtual CPU is blocked on resource
</pre></div><h3><a name="virStoragePoolState" id="virStoragePoolState"><code>virStoragePoolState</code></a></h3><div class="api"><pre>enum virStoragePoolState {
</pre><table><tr><td><a name="VIR_STORAGE_POOL_INACTIVE" id="VIR_STORAGE_POOL_INACTIVE">VIR_STORAGE_POOL_INACTIVE</a></td><td> = </td><td>0</td><td> : Not running</td></tr><tr><td><a name="VIR_STORAGE_POOL_BUILDING" id="VIR_STORAGE_POOL_BUILDING">VIR_STORAGE_POOL_BUILDING</a></td><td> = </td><td>1</td><td> : Initializing pool, not available</td></tr><tr><td><a name="VIR_STORAGE_POOL_RUNNING" id="VIR_STORAGE_POOL_RUNNING">VIR_STORAGE_POOL_RUNNING</a></td><td> = </td><td>2</td><td> : Running normally</td></tr><tr><td><a name="VIR_STORAGE_POOL_DEGRADED" id="VIR_STORAGE_POOL_DEGRADED">VIR_STORAGE_POOL_DEGRADED</a></td><td> = </td><td>3</td><td> : Running degraded</td></tr></table><pre>}
</pre></div><h3><a name="virStorageVol" id="virStorageVol"><code>virStorageVol</code></a></h3><div class="api"><pre>struct virStorageVol{
</pre><table><tr><td colspan="3">The content of this structure is not made public by the API</td></tr></table><pre>
}
</pre><h3><a name="virConnectAuthCallbackPtr" id="virConnectAuthCallbackPtr"></a>Function type: virConnectAuthCallbackPtr</h3><pre class="programlisting">Function type: virConnectAuthCallbackPtr
int virConnectAuthCallbackPtr (<a href="libvirt-libvirt.html#virConnectCredentialPtr">virConnectCredentialPtr</a> cred, <br /> unsigned int ncred, <br /> void * cbdata)
</pre><p></p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>cred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>ncred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>cbdata</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><br />
<h3><a name="virConnectClose" id="virConnectClose"></a>Function: virConnectClose</h3><pre class="programlisting">int virConnectClose (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This function closes the connection to the Hypervisor. This should not be called if further interaction with the Hypervisor are needed especially if there is running domain which need further monitoring by the application.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectGetCapabilities" id="virConnectGetCapabilities"></a>Function: virConnectGetCapabilities</h3><pre class="programlisting">char * virConnectGetCapabilities (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides capabilities of the hypervisor / driver.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, or an XML string defining the capabilities. The client must free the returned string after use.</td></tr></tbody></table></div><h3><a name="virConnectGetHostname" id="virConnectGetHostname"></a>Function: virConnectGetHostname</h3><pre class="programlisting">char * virConnectGetHostname (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This returns the system hostname on which the hypervisor is running (the result of the gethostname(2) system call). If we are connected to a remote system, then this returns the hostname of the remote system.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the hostname which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetMaxVcpus" id="virConnectGetMaxVcpus"></a>Function: virConnectGetMaxVcpus</h3><pre class="programlisting">int virConnectGetMaxVcpus (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)<br />
</pre><p>Provides the maximum number of virtual CPUs supported for a guest VM of a specific type. The 'type' parameter here corresponds to the 'type' attribute in the &lt;domain&gt; element of the XML.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>value of the 'type' attribute in the &lt;domain&gt; element</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectGetType" id="virConnectGetType"></a>Function: virConnectGetType</h3><pre class="programlisting">const char * virConnectGetType (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Get the name of the Hypervisor software used.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a static zero terminated string otherwise. See also: http://www.redhat.com/archives/libvir-list/2007-February/msg00096.html</td></tr></tbody></table></div><h3><a name="virConnectGetURI" id="virConnectGetURI"></a>Function: virConnectGetURI</h3><pre class="programlisting">char * virConnectGetURI (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This returns the URI (name) of the hypervisor connection. Normally this is the same as or similar to the string passed to the virConnectOpen/virConnectOpenReadOnly call, but the driver may make the URI canonical. If name == NULL was passed to virConnectOpen, then the driver will return a non-NULL URI which can be used to connect to the same hypervisor later.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the URI string which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetVersion" id="virConnectGetVersion"></a>Function: virConnectGetVersion</h3><pre class="programlisting">int virConnectGetVersion (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer)<br />
</pre><p>Get the version level of the Hypervisor running. This may work only with hypervisor call, i.e. with privileged access to the hypervisor, not with a Read-Only connection.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>hvVer</tt></i>:</span></td><td>return value for the version of the running hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 otherwise. if the version can't be extracted by lack of capacities returns 0 and @hvVer is 0, otherwise @hvVer value is major * 1,000,000 + minor * 1,000 + release</td></tr></tbody></table></div><h3><a name="virConnectListDefinedDomains" id="virConnectListDefinedDomains"></a>Function: virConnectListDefinedDomains</h3><pre class="programlisting">int virConnectListDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>list the defined but inactive domains, stores the pointers to the names in @names</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedNetworks" id="virConnectListDefinedNetworks"></a>Function: virConnectListDefinedNetworks</h3><pre class="programlisting">int virConnectListDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>list the inactive networks, stores the pointers to the names in @names</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedStoragePools" id="virConnectListDefinedStoragePools"></a>Function: virConnectListDefinedStoragePools</h3><pre class="programlisting">int virConnectListDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Provides the list of names of inactive storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectListDomains" id="virConnectListDomains"></a>Function: virConnectListDomains</h3><pre class="programlisting">int virConnectListDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids)<br />
</pre><p>Collect the list of active domains, and store their ID in @maxids</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>ids</tt></i>:</span></td><td>array to collect the list of IDs of active domains</td></tr><tr><td><span class="term"><i><tt>maxids</tt></i>:</span></td><td>size of @ids</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListNetworks" id="virConnectListNetworks"></a>Function: virConnectListNetworks</h3><pre class="programlisting">int virConnectListNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Collect the list of active networks, and store their names in @names</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array to collect the list of names of active networks</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of @names</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListStoragePools" id="virConnectListStoragePools"></a>Function: virConnectListStoragePools</h3><pre class="programlisting">int virConnectListStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Provides the list of names of active storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedDomains" id="virConnectNumOfDefinedDomains"></a>Function: virConnectNumOfDefinedDomains</h3><pre class="programlisting">int virConnectNumOfDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of defined but inactive domains.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedNetworks" id="virConnectNumOfDefinedNetworks"></a>Function: virConnectNumOfDefinedNetworks</h3><pre class="programlisting">int virConnectNumOfDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of inactive networks.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedStoragePools" id="virConnectNumOfDefinedStoragePools"></a>Function: virConnectNumOfDefinedStoragePools</h3><pre class="programlisting">int virConnectNumOfDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of inactive storage pools</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDomains" id="virConnectNumOfDomains"></a>Function: virConnectNumOfDomains</h3><pre class="programlisting">int virConnectNumOfDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active domains.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfNetworks" id="virConnectNumOfNetworks"></a>Function: virConnectNumOfNetworks</h3><pre class="programlisting">int virConnectNumOfNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active networks.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of network found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfStoragePools" id="virConnectNumOfStoragePools"></a>Function: virConnectNumOfStoragePools</h3><pre class="programlisting">int virConnectNumOfStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active storage pools</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectOpen" id="virConnectOpen"></a>Function: virConnectOpen</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpen (const char * name)<br />
</pre><p>This function should be called first to get a connection to the Hypervisor and xen store</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenAuth" id="virConnectOpenAuth"></a>Function: virConnectOpenAuth</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenAuth (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags)<br />
</pre><p>This function should be called first to get a connection to the Hypervisor. If necessary, authentication will be performed fetching credentials via the callback</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>auth</tt></i>:</span></td><td>Authenticate callback parameters</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>Open flags</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenReadOnly" id="virConnectOpenReadOnly"></a>Function: virConnectOpenReadOnly</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenReadOnly (const char * name)<br />
</pre><p>This function should be called first to get a restricted connection to the library functionalities. The set of APIs usable are then restricted on the available methods to control the domains.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virDomainAttachDevice" id="virDomainAttachDevice"></a>Function: virDomainAttachDevice</h3><pre class="programlisting">int virDomainAttachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br />
</pre><p>Create a virtual device attachment to backend.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainBlockStats" id="virDomainBlockStats"></a>Function: virDomainBlockStats</h3><pre class="programlisting">int virDomainBlockStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size)<br />
</pre><p>This function returns block device (disk) stats for block devices attached to the domain. The path parameter is the name of the block device. Get this by calling <a href="libvirt-libvirt.html#virDomainGetXMLDesc">virDomainGetXMLDesc</a> and finding the &lt;target dev='...'&gt; attribute within //domain/devices/disk. (For example, "xvda"). Domains may have more than one block device. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the block device</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>block device stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCoreDump" id="virDomainCoreDump"></a>Function: virDomainCoreDump</h3><pre class="programlisting">int virDomainCoreDump (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags)<br />
</pre><p>This method will dump the core of a domain on a given file for analysis. Note that for remote Xen Daemon the file path will be interpreted in the remote host.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the core file</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags, currently unused</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCreate" id="virDomainCreate"></a>Function: virDomainCreate</h3><pre class="programlisting">int virDomainCreate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>launch a defined domain. If the call succeed the domain moves from the defined to the running domains pools.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainCreateLinux" id="virDomainCreateLinux"></a>Function: virDomainCreateLinux</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainCreateLinux (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br />
</pre><p>Launch a new Linux guest domain, based on an XML description similar to the one returned by virDomainGetXMLDesc() This function may requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>string containing an XML description of the domain</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>an optional set of virDomainFlags</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virDomainDefineXML" id="virDomainDefineXML"></a>Function: virDomainDefineXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br />
</pre><p>define a domain, but does not start it</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the domain, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the domain otherwise</td></tr></tbody></table></div><h3><a name="virDomainDestroy" id="virDomainDestroy"></a>Function: virDomainDestroy</h3><pre class="programlisting">int virDomainDestroy (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Destroy the domain object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. The data structure is freed and should not be used thereafter if the call does not return an error. This function may requires privileged access</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainDetachDevice" id="virDomainDetachDevice"></a>Function: virDomainDetachDevice</h3><pre class="programlisting">int virDomainDetachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br />
</pre><p>Destroy a virtual device attachment to backend.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainFree" id="virDomainFree"></a>Function: virDomainFree</h3><pre class="programlisting">int virDomainFree (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Free the domain object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetAutostart" id="virDomainGetAutostart"></a>Function: virDomainGetAutostart</h3><pre class="programlisting">int virDomainGetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart)<br />
</pre><p>Provides a boolean value indicating whether the domain configured to be automatically started when the host machine boots.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetConnect" id="virDomainGetConnect"></a>Function: virDomainGetConnect</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virDomainGetConnect (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom)<br />
</pre><p>Provides the connection pointer associated with a domain. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the domain object together.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to a domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetID" id="virDomainGetID"></a>Function: virDomainGetID</h3><pre class="programlisting">unsigned int virDomainGetID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the hypervisor ID number for the domain</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the domain ID number or (unsigned int) -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainGetInfo" id="virDomainGetInfo"></a>Function: virDomainGetInfo</h3><pre class="programlisting">int virDomainGetInfo (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info)<br />
</pre><p>Extract information about a domain. Note that if the connection used to get the domain is limited only a partial set of the information can be extracted.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxMemory" id="virDomainGetMaxMemory"></a>Function: virDomainGetMaxMemory</h3><pre class="programlisting">unsigned long virDomainGetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Retrieve the maximum amount of physical memory allocated to a domain. If domain is NULL, then this get the amount of memory reserved to Domain0 i.e. the domain where the application runs.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the memory size in kilobytes or 0 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxVcpus" id="virDomainGetMaxVcpus"></a>Function: virDomainGetMaxVcpus</h3><pre class="programlisting">int virDomainGetMaxVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Provides the maximum number of virtual CPUs supported for the guest VM. If the guest is inactive, this is basically the same as virConnectGetMaxVcpus. If the guest is running this will reflect the maximum number of virtual CPUs the guest was booted with.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetName" id="virDomainGetName"></a>Function: virDomainGetName</h3><pre class="programlisting">const char * virDomainGetName (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the public name for that domain</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the domain object.</td></tr></tbody></table></div><h3><a name="virDomainGetOSType" id="virDomainGetOSType"></a>Function: virDomainGetOSType</h3><pre class="programlisting">char * virDomainGetOSType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the type of domain operation system.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new string or NULL in case of error, the string must be freed by the caller.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerParameters" id="virDomainGetSchedulerParameters"></a>Function: virDomainGetSchedulerParameters</h3><pre class="programlisting">int virDomainGetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams)<br />
</pre><p>Get the scheduler parameters, the @params array will be filled with the values.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter object (return value)</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>pointer to number of scheduler parameter (this value should be same than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerType" id="virDomainGetSchedulerType"></a>Function: virDomainGetSchedulerType</h3><pre class="programlisting">char * virDomainGetSchedulerType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams)<br />
</pre><p>Get the scheduler type.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameters(return value)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error. The caller must free the returned string.</td></tr></tbody></table></div><h3><a name="virDomainGetUUID" id="virDomainGetUUID"></a>Function: virDomainGetUUID</h3><pre class="programlisting">int virDomainGetUUID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid)<br />
</pre><p>Get the UUID for a domain</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetUUIDString" id="virDomainGetUUIDString"></a>Function: virDomainGetUUIDString</h3><pre class="programlisting">int virDomainGetUUIDString (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf)<br />
</pre><p>Get the UUID for a domain as string. For more information about UUID see RFC4122.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetVcpus" id="virDomainGetVcpus"></a>Function: virDomainGetVcpus</h3><pre class="programlisting">int virDomainGetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen)<br />
</pre><p>Extract information about virtual CPUs of domain, store it in info array and also in cpumaps if this pointer isn't NULL.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to an array of <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> structures (OUT)</td></tr><tr><td><span class="term"><i><tt>maxinfo</tt></i>:</span></td><td>number of structures in info array</td></tr><tr><td><span class="term"><i><tt>cpumaps</tt></i>:</span></td><td>pointer to an bit map of real CPUs for all vcpus of this domain (in 8-bit bytes) (OUT) If cpumaps is NULL, then no cpumap information is returned by the API. It's assumed there is &lt;maxinfo&gt; cpumap in cpumaps array. The memory allocated to cpumaps must be (maxinfo * maplen) bytes (ie: calloc(maxinfo, maplen)). One cpumap inside cpumaps has the format described in virDomainPinVcpu() API.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in one cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...).</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of info filled in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetXMLDesc" id="virDomainGetXMLDesc"></a>Function: virDomainGetXMLDesc</h3><pre class="programlisting">char * virDomainGetXMLDesc (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags)<br />
</pre><p>Provide an XML description of the domain. The description may be reused later to relaunch the domain with virDomainCreateLinux().</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>an OR'ed set of <a href="libvirt-libvirt.html#virDomainXMLFlags">virDomainXMLFlags</a></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virDomainInterfaceStats" id="virDomainInterfaceStats"></a>Function: virDomainInterfaceStats</h3><pre class="programlisting">int virDomainInterfaceStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size)<br />
</pre><p>This function returns network interface stats for interfaces attached to the domain. The path parameter is the name of the network interface. Domains may have more than network interface. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the interface</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>network interface stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainLookupByID" id="virDomainLookupByID"></a>Function: virDomainLookupByID</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id)<br />
</pre><p>Try to find a domain based on the hypervisor ID number</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>id</tt></i>:</span></td><td>the domain ID number</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByName" id="virDomainLookupByName"></a>Function: virDomainLookupByName</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its name.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUID" id="virDomainLookupByUUID"></a>Function: virDomainLookupByUUID</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUIDString" id="virDomainLookupByUUIDString"></a>Function: virDomainLookupByUUIDString</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainMigrate" id="virDomainMigrate"></a>Function: virDomainMigrate</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainMigrate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth)<br />
</pre><p>Migrate the domain object from its current host to the destination host given by dconn (a connection to the destination host). Flags may be one of more of the following: <a href="libvirt-libvirt.html#VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a> Attempt a live migration. If a hypervisor supports renaming domains during migration, then you may set the dname parameter to the new name (otherwise it keeps the same name). If this is not supported by the hypervisor, dname must be NULL or else you will get an error. Since typically the two hypervisors connect directly to each other in order to perform the migration, you may need to specify a path from the source to the destination. This is the purpose of the uri parameter. If uri is NULL, then libvirt will try to find the best method. Uri may specify the hostname or IP address of the destination host as seen from the source. Or uri may be a URI giving transport, hostname, user, port, etc. in the usual form. Refer to driver documentation for the particular URIs supported. The maximum bandwidth (in Mbps) that will be used to do migration can be specified with the bandwidth parameter. If set to 0, libvirt will choose a suitable default. Some hypervisors do not support this feature and will return an error if bandwidth is not 0. To see which features are supported by the current hypervisor, see virConnectGetCapabilities, /capabilities/host/migration_features. There are many limitations on migration imposed by the underlying technology - for example it may not be possible to migrate between different processors even with the same architecture, or between different types of hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>dconn</tt></i>:</span></td><td>destination host (a connection object)</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags</td></tr><tr><td><span class="term"><i><tt>dname</tt></i>:</span></td><td>(optional) rename domain to this at destination</td></tr><tr><td><span class="term"><i><tt>uri</tt></i>:</span></td><td>(optional) dest hostname/URI as seen from the source host</td></tr><tr><td><span class="term"><i><tt>bandwidth</tt></i>:</span></td><td>(optional) specify migration bandwidth limit in Mbps</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new domain object if the migration was successful, or NULL in case of error. Note that the new domain object exists in the scope of the destination connection (dconn).</td></tr></tbody></table></div><h3><a name="virDomainPinVcpu" id="virDomainPinVcpu"></a>Function: virDomainPinVcpu</h3><pre class="programlisting">int virDomainPinVcpu (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen)<br />
</pre><p>Dynamically change the real CPUs which can be allocated to a virtual CPU. This function requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>vcpu</tt></i>:</span></td><td>virtual CPU number</td></tr><tr><td><span class="term"><i><tt>cpumap</tt></i>:</span></td><td>pointer to a bit map of real CPUs (in 8-bit bytes) (IN) Each bit set to 1 means that corresponding CPU is usable. Bytes are stored in little-endian order: CPU0-7, 8-15... In each byte, lowest CPU number is least significant bit.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...). If maplen &lt; size, missing bytes are set to zero. If maplen &gt; size, failure code is returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainReboot" id="virDomainReboot"></a>Function: virDomainReboot</h3><pre class="programlisting">int virDomainReboot (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags)<br />
</pre><p>Reboot a domain, the domain object is still usable there after but the domain OS is being stopped for a restart. Note that the guest OS may ignore the request.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags for the reboot operation, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainRestore" id="virDomainRestore"></a>Function: virDomainRestore</h3><pre class="programlisting">int virDomainRestore (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from)<br />
</pre><p>This method will restore a domain saved to disk by virDomainSave().</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>from</tt></i>:</span></td><td>path to the</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainResume" id="virDomainResume"></a>Function: virDomainResume</h3><pre class="programlisting">int virDomainResume (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Resume an suspended domain, the process is restarted from the state where it was frozen by calling virSuspendDomain(). This function may requires privileged access</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSave" id="virDomainSave"></a>Function: virDomainSave</h3><pre class="programlisting">int virDomainSave (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to)<br />
</pre><p>This method will suspend a domain and save its memory contents to a file on disk. After the call, if successful, the domain is not listed as running anymore (this may be a problem). Use virDomainRestore() to restore a domain after saving.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the output file</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetAutostart" id="virDomainSetAutostart"></a>Function: virDomainSetAutostart</h3><pre class="programlisting">int virDomainSetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart)<br />
</pre><p>Configure the domain to be automatically started when the host machine boots.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the domain should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainSetMaxMemory" id="virDomainSetMaxMemory"></a>Function: virDomainSetMaxMemory</h3><pre class="programlisting">int virDomainSetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br />
</pre><p>Dynamically change the maximum amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetMemory" id="virDomainSetMemory"></a>Function: virDomainSetMemory</h3><pre class="programlisting">int virDomainSetMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br />
</pre><p>Dynamically change the target amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function may requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetSchedulerParameters" id="virDomainSetSchedulerParameters"></a>Function: virDomainSetSchedulerParameters</h3><pre class="programlisting">int virDomainSetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams)<br />
</pre><p>Change the scheduler parameters</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter objects</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameter (this value should be same or less than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainSetVcpus" id="virDomainSetVcpus"></a>Function: virDomainSetVcpus</h3><pre class="programlisting">int virDomainSetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus)<br />
</pre><p>Dynamically change the number of virtual CPUs used by the domain. Note that this call may fail if the underlying virtualization hypervisor does not support it or if growing the number is arbitrary limited. This function requires privileged access to the hypervisor.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>nvcpus</tt></i>:</span></td><td>the new number of virtual CPUs for this domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainShutdown" id="virDomainShutdown"></a>Function: virDomainShutdown</h3><pre class="programlisting">int virDomainShutdown (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Shutdown a domain, the domain object is still usable there after but the domain OS is being stopped. Note that the guest OS may ignore the request. TODO: should we add an option for reboot, knowing it may not be doable in the general case ?</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSuspend" id="virDomainSuspend"></a>Function: virDomainSuspend</h3><pre class="programlisting">int virDomainSuspend (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Suspends an active domain, the process is frozen without further access to CPU resources and I/O but the memory used by the domain at the hypervisor level will stay allocated. Use virDomainResume() to reactivate the domain. This function may requires privileged access.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainUndefine" id="virDomainUndefine"></a>Function: virDomainUndefine</h3><pre class="programlisting">int virDomainUndefine (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>undefine a domain but does not stop it if it is running</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virGetVersion" id="virGetVersion"></a>Function: virGetVersion</h3><pre class="programlisting">int virGetVersion (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer)<br />
</pre><p>Provides two information back, @libVer is the version of the library while @typeVer will be the version of the hypervisor type @type against which the library was compiled. If @type is NULL, "Xen" is assumed, if @type is unknown or not available, an error code will be returned and @typeVer will be 0.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>libVer</tt></i>:</span></td><td>return value for the library version (OUT)</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the type of connection/driver looked at</td></tr><tr><td><span class="term"><i><tt>typeVer</tt></i>:</span></td><td>return value for the version of the hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of failure, 0 otherwise, and values for @libVer and @typeVer have the format major * 1,000,000 + minor * 1,000 + release.</td></tr></tbody></table></div><h3><a name="virInitialize" id="virInitialize"></a>Function: virInitialize</h3><pre class="programlisting">int virInitialize (void)<br />
</pre><p>Initialize the library. It's better to call this routine at startup in multithreaded applications to avoid potential race when initializing the library.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreate" id="virNetworkCreate"></a>Function: virNetworkCreate</h3><pre class="programlisting">int virNetworkCreate (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Create and start a defined network. If the call succeed the network moves from the defined to the running networks pools.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreateXML" id="virNetworkCreateXML"></a>Function: virNetworkCreateXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc)<br />
</pre><p>Create and start a new virtual network, based on an XML description similar to the one returned by virNetworkGetXMLDesc()</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>an XML description of the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virNetworkDefineXML" id="virNetworkDefineXML"></a>Function: virNetworkDefineXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br />
</pre><p>Define a network, but does not create it</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the network, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the network otherwise</td></tr></tbody></table></div><h3><a name="virNetworkDestroy" id="virNetworkDestroy"></a>Function: virNetworkDestroy</h3><pre class="programlisting">int virNetworkDestroy (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Destroy the network object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. The data structure is freed and should not be used thereafter if the call does not return an error. This function may requires privileged access</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkFree" id="virNetworkFree"></a>Function: virNetworkFree</h3><pre class="programlisting">int virNetworkFree (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Free the network object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetAutostart" id="virNetworkGetAutostart"></a>Function: virNetworkGetAutostart</h3><pre class="programlisting">int virNetworkGetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart)<br />
</pre><p>Provides a boolean value indicating whether the network configured to be automatically started when the host machine boots.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetBridgeName" id="virNetworkGetBridgeName"></a>Function: virNetworkGetBridgeName</h3><pre class="programlisting">char * virNetworkGetBridgeName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Provides a bridge interface name to which a domain may connect a network interface in order to join the network.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated interface name, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkGetConnect" id="virNetworkGetConnect"></a>Function: virNetworkGetConnect</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virNetworkGetConnect (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net)<br />
</pre><p>Provides the connection pointer associated with a network. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the network object together.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>net</tt></i>:</span></td><td>pointer to a network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetName" id="virNetworkGetName"></a>Function: virNetworkGetName</h3><pre class="programlisting">const char * virNetworkGetName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Get the public name for that network</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the network object.</td></tr></tbody></table></div><h3><a name="virNetworkGetUUID" id="virNetworkGetUUID"></a>Function: virNetworkGetUUID</h3><pre class="programlisting">int virNetworkGetUUID (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid)<br />
</pre><p>Get the UUID for a network</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetUUIDString" id="virNetworkGetUUIDString"></a>Function: virNetworkGetUUIDString</h3><pre class="programlisting">int virNetworkGetUUIDString (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf)<br />
</pre><p>Get the UUID for a network as string. For more information about UUID see RFC4122.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetXMLDesc" id="virNetworkGetXMLDesc"></a>Function: virNetworkGetXMLDesc</h3><pre class="programlisting">char * virNetworkGetXMLDesc (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags)<br />
</pre><p>Provide an XML description of the network. The description may be reused later to relaunch the network with virNetworkCreateXML().</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>and OR'ed set of extraction flags, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByName" id="virNetworkLookupByName"></a>Function: virNetworkLookupByName</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its name.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUID" id="virNetworkLookupByUUID"></a>Function: virNetworkLookupByUUID</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUIDString" id="virNetworkLookupByUUIDString"></a>Function: virNetworkLookupByUUIDString</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkSetAutostart" id="virNetworkSetAutostart"></a>Function: virNetworkSetAutostart</h3><pre class="programlisting">int virNetworkSetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart)<br />
</pre><p>Configure the network to be automatically started when the host machine boots.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the network should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkUndefine" id="virNetworkUndefine"></a>Function: virNetworkUndefine</h3><pre class="programlisting">int virNetworkUndefine (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Undefine a network but does not stop it if it is running</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNodeGetCellsFreeMemory" id="virNodeGetCellsFreeMemory"></a>Function: virNodeGetCellsFreeMemory</h3><pre class="programlisting">int virNodeGetCellsFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells)<br />
</pre><p>This call returns the amount of free memory in one or more NUMA cells. The @freeMems array must be allocated by the caller and will be filled with the amount of free memory in kilobytes for each cell requested, starting with startCell (in freeMems[0]), up to either (startCell + maxCells), or the number of additional cells in the node, whichever is smaller.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>freeMems</tt></i>:</span></td><td>pointer to the array of unsigned long long</td></tr><tr><td><span class="term"><i><tt>startCell</tt></i>:</span></td><td>index of first cell to return freeMems info on.</td></tr><tr><td><span class="term"><i><tt>maxCells</tt></i>:</span></td><td>Maximum number of cells for which freeMems information can be returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of entries filled in freeMems, or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virNodeGetFreeMemory" id="virNodeGetFreeMemory"></a>Function: virNodeGetFreeMemory</h3><pre class="programlisting">unsigned long long virNodeGetFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>provides the free memory available on the Node</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the available free memory in kilobytes or 0 in case of error</td></tr></tbody></table></div><h3><a name="virNodeGetInfo" id="virNodeGetInfo"></a>Function: virNodeGetInfo</h3><pre class="programlisting">int virNodeGetInfo (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info)<br />
</pre><p>Extract hardware information about the node.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolBuild" id="virStoragePoolBuild"></a>Function: virStoragePoolBuild</h3><pre class="programlisting">int virStoragePoolBuild (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Build the underlying storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 upon failure</td></tr></tbody></table></div><h3><a name="virStoragePoolCreate" id="virStoragePoolCreate"></a>Function: virStoragePoolCreate</h3><pre class="programlisting">int virStoragePoolCreate (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Starts an inactive storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be started</td></tr></tbody></table></div><h3><a name="virStoragePoolCreateXML" id="virStoragePoolCreateXML"></a>Function: virStoragePoolCreateXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br />
</pre><p>Create a new storage based on its XML description. The pool is not persistent, so its definition will disappear when it is destroyed, or if the host is restarted</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDefineXML" id="virStoragePoolDefineXML"></a>Function: virStoragePoolDefineXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags)<br />
</pre><p>Define a new inactive storage pool based on its XML description. The pool is persistent, until explicitly undefined.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDelete" id="virStoragePoolDelete"></a>Function: virStoragePoolDelete</h3><pre class="programlisting">int virStoragePoolDelete (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Delete the underlying pool resources. This is a non-recoverable operation. The <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object itself is not free'd.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for obliteration process</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be obliterate</td></tr></tbody></table></div><h3><a name="virStoragePoolDestroy" id="virStoragePoolDestroy"></a>Function: virStoragePoolDestroy</h3><pre class="programlisting">int virStoragePoolDestroy (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Destroy an active storage pool. This will deactivate the pool on the host, but keep any persistent config associated with it. If it has a persistent config it can later be restarted with virStoragePoolCreate(). This does not free the associated <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be destroyed</td></tr></tbody></table></div><h3><a name="virStoragePoolFree" id="virStoragePoolFree"></a>Function: virStoragePoolFree</h3><pre class="programlisting">int virStoragePoolFree (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Free a storage pool object, releasing all memory associated with it. Does not change the state of the pool on the host.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be free'd.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetAutostart" id="virStoragePoolGetAutostart"></a>Function: virStoragePoolGetAutostart</h3><pre class="programlisting">int virStoragePoolGetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart)<br />
</pre><p>Fetches the value of the autostart flag, which determines whether the pool is automatically started at boot time</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>location in which to store autostart flag</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolGetConnect" id="virStoragePoolGetConnect"></a>Function: virStoragePoolGetConnect</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStoragePoolGetConnect (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Provides the connection pointer associated with a storage pool. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the pool object together.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetInfo" id="virStoragePoolGetInfo"></a>Function: virStoragePoolGetInfo</h3><pre class="programlisting">int virStoragePoolGetInfo (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info)<br />
</pre><p>Get volatile information about the storage pool such as free space / usage summary</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetName" id="virStoragePoolGetName"></a>Function: virStoragePoolGetName</h3><pre class="programlisting">const char * virStoragePoolGetName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Fetch the locally unique name of the storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the name of the pool, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUID" id="virStoragePoolGetUUID"></a>Function: virStoragePoolGetUUID</h3><pre class="programlisting">int virStoragePoolGetUUID (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid)<br />
</pre><p>Fetch the globally unique ID of the storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUIDString" id="virStoragePoolGetUUIDString"></a>Function: virStoragePoolGetUUIDString</h3><pre class="programlisting">int virStoragePoolGetUUIDString (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf)<br />
</pre><p>Fetch the globally unique ID of the storage pool as a string</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetXMLDesc" id="virStoragePoolGetXMLDesc"></a>Function: virStoragePoolGetXMLDesc</h3><pre class="programlisting">char * virStoragePoolGetXMLDesc (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Fetch an XML document describing all aspects of the storage pool. This is suitable for later feeding back into the <a href="libvirt-libvirt.html#virStoragePoolCreateXML">virStoragePoolCreateXML</a> method.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML format options (set of virDomainXMLFlags)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolListVolumes" id="virStoragePoolListVolumes"></a>Function: virStoragePoolListVolumes</h3><pre class="programlisting">int virStoragePoolListVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Fetch list of storage volume names, limiting to at most maxnames.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array in which to storage volume names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names fetched, or -1 on error</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByName" id="virStoragePoolLookupByName"></a>Function: virStoragePoolLookupByName</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Fetch a storage pool based on its unique name</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUID" id="virStoragePoolLookupByUUID"></a>Function: virStoragePoolLookupByUUID</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Fetch a storage pool based on its globally unique id</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUIDString" id="virStoragePoolLookupByUUIDString"></a>Function: virStoragePoolLookupByUUIDString</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Fetch a storage pool based on its globally unique id</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByVolume" id="virStoragePoolLookupByVolume"></a>Function: virStoragePoolLookupByVolume</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByVolume (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch a storage pool which contains a particular volume</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolNumOfVolumes" id="virStoragePoolNumOfVolumes"></a>Function: virStoragePoolNumOfVolumes</h3><pre class="programlisting">int virStoragePoolNumOfVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Fetch the number of storage volumes within a pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of storage pools, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolRefresh" id="virStoragePoolRefresh"></a>Function: virStoragePoolRefresh</h3><pre class="programlisting">int virStoragePoolRefresh (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Request that the pool refresh its list of volumes. This may involve communicating with a remote server, and/or initializing new devices at the OS layer</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags to control refresh behaviour (currently unused, use 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the volume list was refreshed, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolSetAutostart" id="virStoragePoolSetAutostart"></a>Function: virStoragePoolSetAutostart</h3><pre class="programlisting">int virStoragePoolSetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart)<br />
</pre><p>Sets the autostart flag</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>new flag setting</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolUndefine" id="virStoragePoolUndefine"></a>Function: virStoragePoolUndefine</h3><pre class="programlisting">int virStoragePoolUndefine (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Undefine an inactive storage pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStorageVolCreateXML" id="virStorageVolCreateXML"></a>Function: virStorageVolCreateXML</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolCreateXML (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags)<br />
</pre><p>Create a storage volume within a pool based on an XML description. Not all pools support creation of volumes</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>xmldesc</tt></i>:</span></td><td>description of volume to create</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for creation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolDelete" id="virStorageVolDelete"></a>Function: virStorageVolDelete</h3><pre class="programlisting">int virStorageVolDelete (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br />
</pre><p>Delete the storage volume from the pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolFree" id="virStorageVolFree"></a>Function: virStorageVolFree</h3><pre class="programlisting">int virStorageVolFree (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Release the storage volume handle. The underlying storage volume contains to exist</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetConnect" id="virStorageVolGetConnect"></a>Function: virStorageVolGetConnect</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStorageVolGetConnect (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Provides the connection pointer associated with a storage volume. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the volume object together.</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStorageVolGetInfo" id="virStorageVolGetInfo"></a>Function: virStorageVolGetInfo</h3><pre class="programlisting">int virStorageVolGetInfo (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info)<br />
</pre><p>Fetches volatile information about the storage volume such as its current allocation</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStorageVolGetKey" id="virStorageVolGetKey"></a>Function: virStorageVolGetKey</h3><pre class="programlisting">const char * virStorageVolGetKey (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume key. This is globally unique, so the same volume will have the same key no matter what host it is accessed from</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume key, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetName" id="virStorageVolGetName"></a>Function: virStorageVolGetName</h3><pre class="programlisting">const char * virStorageVolGetName (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume name. This is unique within the scope of a pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume name, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetPath" id="virStorageVolGetPath"></a>Function: virStorageVolGetPath</h3><pre class="programlisting">char * virStorageVolGetPath (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume path. Depending on the pool configuration this is either persistent across hosts, or dynamically assigned at pool startup. Consult pool documentation for information on getting the persistent naming</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume path, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetXMLDesc" id="virStorageVolGetXMLDesc"></a>Function: virStorageVolGetXMLDesc</h3><pre class="programlisting">char * virStorageVolGetXMLDesc (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br />
</pre><p>Fetch an XML document describing all aspects of the storage volume</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML generation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByKey" id="virStorageVolLookupByKey"></a>Function: virStorageVolLookupByKey</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByKey (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key)<br />
</pre><p>Fetch a pointer to a storage volume based on its globally unique key</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>key</tt></i>:</span></td><td>globally unique key</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByName" id="virStorageVolLookupByName"></a>Function: virStorageVolLookupByName</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)<br />
</pre><p>Fetch a pointer to a storage volume based on its name within a pool</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByPath" id="virStorageVolLookupByPath"></a>Function: virStorageVolLookupByPath</h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByPath (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)<br />
</pre><p>Fetch a pointer to a storage volume based on its locally (host) unique path</p>
<div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>locally unique path</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="../index.html">Home</a></li><li><a href="../html/index.html">API Menu</a></li><li><a href="../examples/index.html">C code examples</a></li><li><a href="../ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="../Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
</pre></div><h3><a name="virStorageVolDeleteFlags" id="virStorageVolDeleteFlags"><code>virStorageVolDeleteFlags</code></a></h3><div class="api"><pre>enum virStorageVolDeleteFlags {
</pre><table><tr><td><a name="VIR_STORAGE_VOL_DELETE_NORMAL" id="VIR_STORAGE_VOL_DELETE_NORMAL">VIR_STORAGE_VOL_DELETE_NORMAL</a></td><td> = </td><td>0</td><td> : Delete metadata only (fast)</td></tr><tr><td><a name="VIR_STORAGE_VOL_DELETE_ZEROED" id="VIR_STORAGE_VOL_DELETE_ZEROED">VIR_STORAGE_VOL_DELETE_ZEROED</a></td><td> = </td><td>1</td><td> : Clear all data to zeros (slow)</td></tr></table><pre>}
</pre></div><h3><a name="virStorageVolInfo" id="virStorageVolInfo"><code>virStorageVolInfo</code></a></h3><div class="api"><pre>struct virStorageVolInfo{
</pre><table><tr><td>int</td><td>type</td><td> : <a href="libvirt-libvirt.html#virStorageVolType">virStorageVolType</a> flags</td></tr><tr><td>unsigned long long</td><td>capacity</td><td> : Logical size bytes</td></tr><tr><td>unsigned long long</td><td>allocation</td><td> : Current allocation bytes</td></tr></table><pre>
}
</pre></div><h3><a name="virStorageVolType" id="virStorageVolType"><code>virStorageVolType</code></a></h3><div class="api"><pre>enum virStorageVolType {
</pre><table><tr><td><a name="VIR_STORAGE_VOL_FILE" id="VIR_STORAGE_VOL_FILE">VIR_STORAGE_VOL_FILE</a></td><td> = </td><td>0</td><td> : Regular file based volumes</td></tr><tr><td><a name="VIR_STORAGE_VOL_BLOCK" id="VIR_STORAGE_VOL_BLOCK">VIR_STORAGE_VOL_BLOCK</a></td><td> = </td><td>1</td><td> : Block based volumes</td></tr></table><pre>}
</pre></div><h3><a name="virVcpuInfo" id="virVcpuInfo"><code>virVcpuInfo</code></a></h3><div class="api"><pre>struct virVcpuInfo{
</pre><table><tr><td>unsigned int</td><td>number</td><td> : virtual CPU number</td></tr><tr><td>int</td><td>state</td><td> : value from <a href="libvirt-libvirt.html#virVcpuState">virVcpuState</a></td></tr><tr><td>unsigned long long</td><td>cpuTime</td><td> : CPU time used, in nanoseconds</td></tr><tr><td>int</td><td>cpu</td><td> : real CPU number, or -1 if offline</td></tr></table><pre>
}
</pre></div><h3><a name="virVcpuState" id="virVcpuState"><code>virVcpuState</code></a></h3><div class="api"><pre>enum virVcpuState {
</pre><table><tr><td><a name="VIR_VCPU_OFFLINE" id="VIR_VCPU_OFFLINE">VIR_VCPU_OFFLINE</a></td><td> = </td><td>0</td><td> : the virtual CPU is offline</td></tr><tr><td><a name="VIR_VCPU_RUNNING" id="VIR_VCPU_RUNNING">VIR_VCPU_RUNNING</a></td><td> = </td><td>1</td><td> : the virtual CPU is running</td></tr><tr><td><a name="VIR_VCPU_BLOCKED" id="VIR_VCPU_BLOCKED">VIR_VCPU_BLOCKED</a></td><td> = </td><td>2</td><td> : the virtual CPU is blocked on resource</td></tr></table><pre>}
</pre></div><h3><a name="functions" id="functions">Functions</a></h3><h3><a name="virConnectAuthCallbackPtr" id="virConnectAuthCallbackPtr"><code>virConnectAuthCallbackPtr</code></a></h3><pre class="programlisting">typedef int (*virConnectAuthCallbackPtr) (<a href="libvirt-libvirt.html#virConnectCredentialPtr">virConnectCredentialPtr</a> cred, <br /> unsigned int ncred, <br /> void * cbdata)
</pre><p></p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>cred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>ncred</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>cbdata</tt></i>:</span></td><td></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td></td></tr></tbody></table></div><br /><h3><a name="virConnectClose" id="virConnectClose"><code>virConnectClose</code></a></h3><pre class="programlisting">int virConnectClose (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This function closes the connection to the Hypervisor. This should not be called if further interaction with the Hypervisor are needed especially if there is running domain which need further monitoring by the application.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectGetCapabilities" id="virConnectGetCapabilities"><code>virConnectGetCapabilities</code></a></h3><pre class="programlisting">char * virConnectGetCapabilities (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides capabilities of the hypervisor / driver.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, or an XML string defining the capabilities. The client must free the returned string after use.</td></tr></tbody></table></div><h3><a name="virConnectGetHostname" id="virConnectGetHostname"><code>virConnectGetHostname</code></a></h3><pre class="programlisting">char * virConnectGetHostname (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This returns the system hostname on which the hypervisor is running (the result of the gethostname(2) system call). If we are connected to a remote system, then this returns the hostname of the remote system.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the hostname which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetMaxVcpus" id="virConnectGetMaxVcpus"><code>virConnectGetMaxVcpus</code></a></h3><pre class="programlisting">int virConnectGetMaxVcpus (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * type)<br />
</pre><p>Provides the maximum number of virtual CPUs supported for a guest VM of a specific type. The 'type' parameter here corresponds to the 'type' attribute in the &lt;domain&gt; element of the XML.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>value of the 'type' attribute in the &lt;domain&gt; element</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virConnectGetType" id="virConnectGetType"><code>virConnectGetType</code></a></h3><pre class="programlisting">const char * virConnectGetType (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Get the name of the Hypervisor software used.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a static zero terminated string otherwise. See also: http://www.redhat.com/archives/libvir-list/2007-February/msg00096.html</td></tr></tbody></table></div><h3><a name="virConnectGetURI" id="virConnectGetURI"><code>virConnectGetURI</code></a></h3><pre class="programlisting">char * virConnectGetURI (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>This returns the URI (name) of the hypervisor connection. Normally this is the same as or similar to the string passed to the virConnectOpen/virConnectOpenReadOnly call, but the driver may make the URI canonical. If name == NULL was passed to virConnectOpen, then the driver will return a non-NULL URI which can be used to connect to the same hypervisor later.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to a hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the URI string which must be freed by the caller, or NULL if there was an error.</td></tr></tbody></table></div><h3><a name="virConnectGetVersion" id="virConnectGetVersion"><code>virConnectGetVersion</code></a></h3><pre class="programlisting">int virConnectGetVersion (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long * hvVer)<br />
</pre><p>Get the version level of the Hypervisor running. This may work only with hypervisor call, i.e. with privileged access to the hypervisor, not with a Read-Only connection.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>hvVer</tt></i>:</span></td><td>return value for the version of the running hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 otherwise. if the version can't be extracted by lack of capacities returns 0 and @hvVer is 0, otherwise @hvVer value is major * 1,000,000 + minor * 1,000 + release</td></tr></tbody></table></div><h3><a name="virConnectListDefinedDomains" id="virConnectListDefinedDomains"><code>virConnectListDefinedDomains</code></a></h3><pre class="programlisting">int virConnectListDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>list the defined but inactive domains, stores the pointers to the names in @names</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedNetworks" id="virConnectListDefinedNetworks"><code>virConnectListDefinedNetworks</code></a></h3><pre class="programlisting">int virConnectListDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>list the inactive networks, stores the pointers to the names in @names</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>pointer to an array to store the names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names provided in the array or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListDefinedStoragePools" id="virConnectListDefinedStoragePools"><code>virConnectListDefinedStoragePools</code></a></h3><pre class="programlisting">int virConnectListDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Provides the list of names of inactive storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectListDomains" id="virConnectListDomains"><code>virConnectListDomains</code></a></h3><pre class="programlisting">int virConnectListDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int * ids, <br /> int maxids)<br />
</pre><p>Collect the list of active domains, and store their ID in @maxids</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>ids</tt></i>:</span></td><td>array to collect the list of IDs of active domains</td></tr><tr><td><span class="term"><i><tt>maxids</tt></i>:</span></td><td>size of @ids</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListNetworks" id="virConnectListNetworks"><code>virConnectListNetworks</code></a></h3><pre class="programlisting">int virConnectListNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Collect the list of active networks, and store their names in @names</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array to collect the list of names of active networks</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of @names</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectListStoragePools" id="virConnectListStoragePools"><code>virConnectListStoragePools</code></a></h3><pre class="programlisting">int virConnectListStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Provides the list of names of active storage pools upto maxnames. If there are more than maxnames, the remaining names will be silently ignored.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array of char * to fill with pool names (allocated by caller)</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of the names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedDomains" id="virConnectNumOfDefinedDomains"><code>virConnectNumOfDefinedDomains</code></a></h3><pre class="programlisting">int virConnectNumOfDefinedDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of defined but inactive domains.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedNetworks" id="virConnectNumOfDefinedNetworks"><code>virConnectNumOfDefinedNetworks</code></a></h3><pre class="programlisting">int virConnectNumOfDefinedNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of inactive networks.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of networks found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDefinedStoragePools" id="virConnectNumOfDefinedStoragePools"><code>virConnectNumOfDefinedStoragePools</code></a></h3><pre class="programlisting">int virConnectNumOfDefinedStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of inactive storage pools</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectNumOfDomains" id="virConnectNumOfDomains"><code>virConnectNumOfDomains</code></a></h3><pre class="programlisting">int virConnectNumOfDomains (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active domains.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of domain found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfNetworks" id="virConnectNumOfNetworks"><code>virConnectNumOfNetworks</code></a></h3><pre class="programlisting">int virConnectNumOfNetworks (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active networks.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of network found or -1 in case of error</td></tr></tbody></table></div><h3><a name="virConnectNumOfStoragePools" id="virConnectNumOfStoragePools"><code>virConnectNumOfStoragePools</code></a></h3><pre class="programlisting">int virConnectNumOfStoragePools (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>Provides the number of active storage pools</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of pools found, or -1 on error</td></tr></tbody></table></div><h3><a name="virConnectOpen" id="virConnectOpen"><code>virConnectOpen</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpen (const char * name)<br />
</pre><p>This function should be called first to get a connection to the Hypervisor and xen store</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenAuth" id="virConnectOpenAuth"><code>virConnectOpenAuth</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenAuth (const char * name, <br /> <a href="libvirt-libvirt.html#virConnectAuthPtr">virConnectAuthPtr</a> auth, <br /> int flags)<br />
</pre><p>This function should be called first to get a connection to the Hypervisor. If necessary, authentication will be performed fetching credentials via the callback</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>auth</tt></i>:</span></td><td>Authenticate callback parameters</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>Open flags</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virConnectOpenReadOnly" id="virConnectOpenReadOnly"><code>virConnectOpenReadOnly</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virConnectOpenReadOnly (const char * name)<br />
</pre><p>This function should be called first to get a restricted connection to the library functionalities. The set of APIs usable are then restricted on the available methods to control the domains.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>URI of the hypervisor</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the hypervisor connection or NULL in case of error URIs are documented at http://libvirt.org/uri.html</td></tr></tbody></table></div><h3><a name="virDomainAttachDevice" id="virDomainAttachDevice"><code>virDomainAttachDevice</code></a></h3><pre class="programlisting">int virDomainAttachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br />
</pre><p>Create a virtual device attachment to backend.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainBlockStats" id="virDomainBlockStats"><code>virDomainBlockStats</code></a></h3><pre class="programlisting">int virDomainBlockStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainBlockStatsPtr">virDomainBlockStatsPtr</a> stats, <br /> size_t size)<br />
</pre><p>This function returns block device (disk) stats for block devices attached to the domain. The path parameter is the name of the block device. Get this by calling <a href="libvirt-libvirt.html#virDomainGetXMLDesc">virDomainGetXMLDesc</a> and finding the &lt;target dev='...'&gt; attribute within //domain/devices/disk. (For example, "xvda"). Domains may have more than one block device. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the block device</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>block device stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCoreDump" id="virDomainCoreDump"><code>virDomainCoreDump</code></a></h3><pre class="programlisting">int virDomainCoreDump (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to, <br /> int flags)<br />
</pre><p>This method will dump the core of a domain on a given file for analysis. Note that for remote Xen Daemon the file path will be interpreted in the remote host.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the core file</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags, currently unused</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainCreate" id="virDomainCreate"><code>virDomainCreate</code></a></h3><pre class="programlisting">int virDomainCreate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>launch a defined domain. If the call succeed the domain moves from the defined to the running domains pools.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainCreateLinux" id="virDomainCreateLinux"><code>virDomainCreateLinux</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainCreateLinux (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br />
</pre><p>Launch a new Linux guest domain, based on an XML description similar to the one returned by virDomainGetXMLDesc() This function may requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>string containing an XML description of the domain</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>an optional set of virDomainFlags</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virDomainDefineXML" id="virDomainDefineXML"><code>virDomainDefineXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br />
</pre><p>define a domain, but does not start it</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the domain, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the domain otherwise</td></tr></tbody></table></div><h3><a name="virDomainDestroy" id="virDomainDestroy"><code>virDomainDestroy</code></a></h3><pre class="programlisting">int virDomainDestroy (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Destroy the domain object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. The data structure is freed and should not be used thereafter if the call does not return an error. This function may requires privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainDetachDevice" id="virDomainDetachDevice"><code>virDomainDetachDevice</code></a></h3><pre class="programlisting">int virDomainDetachDevice (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * xml)<br />
</pre><p>Destroy a virtual device attachment to backend.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>pointer to XML description of one device</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainFree" id="virDomainFree"><code>virDomainFree</code></a></h3><pre class="programlisting">int virDomainFree (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Free the domain object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetAutostart" id="virDomainGetAutostart"><code>virDomainGetAutostart</code></a></h3><pre class="programlisting">int virDomainGetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * autostart)<br />
</pre><p>Provides a boolean value indicating whether the domain configured to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetConnect" id="virDomainGetConnect"><code>virDomainGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virDomainGetConnect (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom)<br />
</pre><p>Provides the connection pointer associated with a domain. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the domain object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to a domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetID" id="virDomainGetID"><code>virDomainGetID</code></a></h3><pre class="programlisting">unsigned int virDomainGetID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the hypervisor ID number for the domain</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the domain ID number or (unsigned int) -1 in case of error</td></tr></tbody></table></div><h3><a name="virDomainGetInfo" id="virDomainGetInfo"><code>virDomainGetInfo</code></a></h3><pre class="programlisting">int virDomainGetInfo (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virDomainInfoPtr">virDomainInfoPtr</a> info)<br />
</pre><p>Extract information about a domain. Note that if the connection used to get the domain is limited only a partial set of the information can be extracted.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virDomainInfo">virDomainInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxMemory" id="virDomainGetMaxMemory"><code>virDomainGetMaxMemory</code></a></h3><pre class="programlisting">unsigned long virDomainGetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Retrieve the maximum amount of physical memory allocated to a domain. If domain is NULL, then this get the amount of memory reserved to Domain0 i.e. the domain where the application runs.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the memory size in kilobytes or 0 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetMaxVcpus" id="virDomainGetMaxVcpus"><code>virDomainGetMaxVcpus</code></a></h3><pre class="programlisting">int virDomainGetMaxVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Provides the maximum number of virtual CPUs supported for the guest VM. If the guest is inactive, this is basically the same as virConnectGetMaxVcpus. If the guest is running this will reflect the maximum number of virtual CPUs the guest was booted with.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the maximum of virtual CPU or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virDomainGetName" id="virDomainGetName"><code>virDomainGetName</code></a></h3><pre class="programlisting">const char * virDomainGetName (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the public name for that domain</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the domain object.</td></tr></tbody></table></div><h3><a name="virDomainGetOSType" id="virDomainGetOSType"><code>virDomainGetOSType</code></a></h3><pre class="programlisting">char * virDomainGetOSType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Get the type of domain operation system.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new string or NULL in case of error, the string must be freed by the caller.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerParameters" id="virDomainGetSchedulerParameters"><code>virDomainGetSchedulerParameters</code></a></h3><pre class="programlisting">int virDomainGetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int * nparams)<br />
</pre><p>Get the scheduler parameters, the @params array will be filled with the values.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter object (return value)</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>pointer to number of scheduler parameter (this value should be same than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainGetSchedulerType" id="virDomainGetSchedulerType"><code>virDomainGetSchedulerType</code></a></h3><pre class="programlisting">char * virDomainGetSchedulerType (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int * nparams)<br />
</pre><p>Get the scheduler type.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameters(return value)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error. The caller must free the returned string.</td></tr></tbody></table></div><h3><a name="virDomainGetUUID" id="virDomainGetUUID"><code>virDomainGetUUID</code></a></h3><pre class="programlisting">int virDomainGetUUID (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned char * uuid)<br />
</pre><p>Get the UUID for a domain</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetUUIDString" id="virDomainGetUUIDString"><code>virDomainGetUUIDString</code></a></h3><pre class="programlisting">int virDomainGetUUIDString (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> char * buf)<br />
</pre><p>Get the UUID for a domain as string. For more information about UUID see RFC4122.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainGetVcpus" id="virDomainGetVcpus"><code>virDomainGetVcpus</code></a></h3><pre class="programlisting">int virDomainGetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virVcpuInfoPtr">virVcpuInfoPtr</a> info, <br /> int maxinfo, <br /> unsigned char * cpumaps, <br /> int maplen)<br />
</pre><p>Extract information about virtual CPUs of domain, store it in info array and also in cpumaps if this pointer isn't NULL.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to an array of <a href="libvirt-libvirt.html#virVcpuInfo">virVcpuInfo</a> structures (OUT)</td></tr><tr><td><span class="term"><i><tt>maxinfo</tt></i>:</span></td><td>number of structures in info array</td></tr><tr><td><span class="term"><i><tt>cpumaps</tt></i>:</span></td><td>pointer to an bit map of real CPUs for all vcpus of this domain (in 8-bit bytes) (OUT) If cpumaps is NULL, then no cpumap information is returned by the API. It's assumed there is &lt;maxinfo&gt; cpumap in cpumaps array. The memory allocated to cpumaps must be (maxinfo * maplen) bytes (ie: calloc(maxinfo, maplen)). One cpumap inside cpumaps has the format described in virDomainPinVcpu() API.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in one cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...).</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of info filled in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainGetXMLDesc" id="virDomainGetXMLDesc"><code>virDomainGetXMLDesc</code></a></h3><pre class="programlisting">char * virDomainGetXMLDesc (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int flags)<br />
</pre><p>Provide an XML description of the domain. The description may be reused later to relaunch the domain with virDomainCreateLinux().</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>an OR'ed set of <a href="libvirt-libvirt.html#virDomainXMLFlags">virDomainXMLFlags</a></td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virDomainInterfaceStats" id="virDomainInterfaceStats"><code>virDomainInterfaceStats</code></a></h3><pre class="programlisting">int virDomainInterfaceStats (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> dom, <br /> const char * path, <br /> <a href="libvirt-libvirt.html#virDomainInterfaceStatsPtr">virDomainInterfaceStatsPtr</a> stats, <br /> size_t size)<br />
</pre><p>This function returns network interface stats for interfaces attached to the domain. The path parameter is the name of the network interface. Domains may have more than network interface. To get stats for each you should make multiple calls to this function. Individual fields within the stats structure may be returned as -1, which indicates that the hypervisor does not support that particular statistic.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>dom</tt></i>:</span></td><td>pointer to the domain object</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>path to the interface</td></tr><tr><td><span class="term"><i><tt>stats</tt></i>:</span></td><td>network interface stats (returned)</td></tr><tr><td><span class="term"><i><tt>size</tt></i>:</span></td><td>size of stats structure</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success or -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainLookupByID" id="virDomainLookupByID"><code>virDomainLookupByID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> int id)<br />
</pre><p>Try to find a domain based on the hypervisor ID number</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>id</tt></i>:</span></td><td>the domain ID number</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByName" id="virDomainLookupByName"><code>virDomainLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its name.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUID" id="virDomainLookupByUUID"><code>virDomainLookupByUUID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainLookupByUUIDString" id="virDomainLookupByUUIDString"><code>virDomainLookupByUUIDString</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Try to lookup a domain on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new domain object or NULL in case of failure. If the domain cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_DOMAIN">VIR_ERR_NO_DOMAIN</a> error is raised.</td></tr></tbody></table></div><h3><a name="virDomainMigrate" id="virDomainMigrate"><code>virDomainMigrate</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> virDomainMigrate (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> dconn, <br /> unsigned long flags, <br /> const char * dname, <br /> const char * uri, <br /> unsigned long bandwidth)<br />
</pre><p>Migrate the domain object from its current host to the destination host given by dconn (a connection to the destination host). Flags may be one of more of the following: <a href="libvirt-libvirt.html#VIR_MIGRATE_LIVE">VIR_MIGRATE_LIVE</a> Attempt a live migration. If a hypervisor supports renaming domains during migration, then you may set the dname parameter to the new name (otherwise it keeps the same name). If this is not supported by the hypervisor, dname must be NULL or else you will get an error. Since typically the two hypervisors connect directly to each other in order to perform the migration, you may need to specify a path from the source to the destination. This is the purpose of the uri parameter. If uri is NULL, then libvirt will try to find the best method. Uri may specify the hostname or IP address of the destination host as seen from the source. Or uri may be a URI giving transport, hostname, user, port, etc. in the usual form. Refer to driver documentation for the particular URIs supported. The maximum bandwidth (in Mbps) that will be used to do migration can be specified with the bandwidth parameter. If set to 0, libvirt will choose a suitable default. Some hypervisors do not support this feature and will return an error if bandwidth is not 0. To see which features are supported by the current hypervisor, see virConnectGetCapabilities, /capabilities/host/migration_features. There are many limitations on migration imposed by the underlying technology - for example it may not be possible to migrate between different processors even with the same architecture, or between different types of hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>dconn</tt></i>:</span></td><td>destination host (a connection object)</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags</td></tr><tr><td><span class="term"><i><tt>dname</tt></i>:</span></td><td>(optional) rename domain to this at destination</td></tr><tr><td><span class="term"><i><tt>uri</tt></i>:</span></td><td>(optional) dest hostname/URI as seen from the source host</td></tr><tr><td><span class="term"><i><tt>bandwidth</tt></i>:</span></td><td>(optional) specify migration bandwidth limit in Mbps</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new domain object if the migration was successful, or NULL in case of error. Note that the new domain object exists in the scope of the destination connection (dconn).</td></tr></tbody></table></div><h3><a name="virDomainPinVcpu" id="virDomainPinVcpu"><code>virDomainPinVcpu</code></a></h3><pre class="programlisting">int virDomainPinVcpu (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int vcpu, <br /> unsigned char * cpumap, <br /> int maplen)<br />
</pre><p>Dynamically change the real CPUs which can be allocated to a virtual CPU. This function requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>vcpu</tt></i>:</span></td><td>virtual CPU number</td></tr><tr><td><span class="term"><i><tt>cpumap</tt></i>:</span></td><td>pointer to a bit map of real CPUs (in 8-bit bytes) (IN) Each bit set to 1 means that corresponding CPU is usable. Bytes are stored in little-endian order: CPU0-7, 8-15... In each byte, lowest CPU number is least significant bit.</td></tr><tr><td><span class="term"><i><tt>maplen</tt></i>:</span></td><td>number of bytes in cpumap, from 1 up to size of CPU map in underlying virtualization system (Xen...). If maplen &lt; size, missing bytes are set to zero. If maplen &gt; size, failure code is returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainReboot" id="virDomainReboot"><code>virDomainReboot</code></a></h3><pre class="programlisting">int virDomainReboot (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int flags)<br />
</pre><p>Reboot a domain, the domain object is still usable there after but the domain OS is being stopped for a restart. Note that the guest OS may ignore the request.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>extra flags for the reboot operation, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainRestore" id="virDomainRestore"><code>virDomainRestore</code></a></h3><pre class="programlisting">int virDomainRestore (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * from)<br />
</pre><p>This method will restore a domain saved to disk by virDomainSave().</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>from</tt></i>:</span></td><td>path to the</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainResume" id="virDomainResume"><code>virDomainResume</code></a></h3><pre class="programlisting">int virDomainResume (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Resume an suspended domain, the process is restarted from the state where it was frozen by calling virSuspendDomain(). This function may requires privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSave" id="virDomainSave"><code>virDomainSave</code></a></h3><pre class="programlisting">int virDomainSave (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> const char * to)<br />
</pre><p>This method will suspend a domain and save its memory contents to a file on disk. After the call, if successful, the domain is not listed as running anymore (this may be a problem). Use virDomainRestore() to restore a domain after saving.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>to</tt></i>:</span></td><td>path for the output file</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetAutostart" id="virDomainSetAutostart"><code>virDomainSetAutostart</code></a></h3><pre class="programlisting">int virDomainSetAutostart (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> int autostart)<br />
</pre><p>Configure the domain to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the domain should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virDomainSetMaxMemory" id="virDomainSetMaxMemory"><code>virDomainSetMaxMemory</code></a></h3><pre class="programlisting">int virDomainSetMaxMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br />
</pre><p>Dynamically change the maximum amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetMemory" id="virDomainSetMemory"><code>virDomainSetMemory</code></a></h3><pre class="programlisting">int virDomainSetMemory (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned long memory)<br />
</pre><p>Dynamically change the target amount of physical memory allocated to a domain. If domain is NULL, then this change the amount of memory reserved to Domain0 i.e. the domain where the application runs. This function may requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object or NULL</td></tr><tr><td><span class="term"><i><tt>memory</tt></i>:</span></td><td>the memory size in kilobytes</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSetSchedulerParameters" id="virDomainSetSchedulerParameters"><code>virDomainSetSchedulerParameters</code></a></h3><pre class="programlisting">int virDomainSetSchedulerParameters (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> <a href="libvirt-libvirt.html#virSchedParameterPtr">virSchedParameterPtr</a> params, <br /> int nparams)<br />
</pre><p>Change the scheduler parameters</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object</td></tr><tr><td><span class="term"><i><tt>params</tt></i>:</span></td><td>pointer to scheduler parameter objects</td></tr><tr><td><span class="term"><i><tt>nparams</tt></i>:</span></td><td>number of scheduler parameter (this value should be same or less than the returned value nparams of virDomainGetSchedulerType)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success.</td></tr></tbody></table></div><h3><a name="virDomainSetVcpus" id="virDomainSetVcpus"><code>virDomainSetVcpus</code></a></h3><pre class="programlisting">int virDomainSetVcpus (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain, <br /> unsigned int nvcpus)<br />
</pre><p>Dynamically change the number of virtual CPUs used by the domain. Note that this call may fail if the underlying virtualization hypervisor does not support it or if growing the number is arbitrary limited. This function requires privileged access to the hypervisor.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to domain object, or NULL for Domain0</td></tr><tr><td><span class="term"><i><tt>nvcpus</tt></i>:</span></td><td>the new number of virtual CPUs for this domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainShutdown" id="virDomainShutdown"><code>virDomainShutdown</code></a></h3><pre class="programlisting">int virDomainShutdown (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Shutdown a domain, the domain object is still usable there after but the domain OS is being stopped. Note that the guest OS may ignore the request. TODO: should we add an option for reboot, knowing it may not be doable in the general case ?</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainSuspend" id="virDomainSuspend"><code>virDomainSuspend</code></a></h3><pre class="programlisting">int virDomainSuspend (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>Suspends an active domain, the process is frozen without further access to CPU resources and I/O but the memory used by the domain at the hypervisor level will stay allocated. Use virDomainResume() to reactivate the domain. This function may requires privileged access.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>a domain object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virDomainUndefine" id="virDomainUndefine"><code>virDomainUndefine</code></a></h3><pre class="programlisting">int virDomainUndefine (<a href="libvirt-libvirt.html#virDomainPtr">virDomainPtr</a> domain)<br />
</pre><p>undefine a domain but does not stop it if it is running</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>domain</tt></i>:</span></td><td>pointer to a defined domain</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virGetVersion" id="virGetVersion"><code>virGetVersion</code></a></h3><pre class="programlisting">int virGetVersion (unsigned long * libVer, <br /> const char * type, <br /> unsigned long * typeVer)<br />
</pre><p>Provides two information back, @libVer is the version of the library while @typeVer will be the version of the hypervisor type @type against which the library was compiled. If @type is NULL, "Xen" is assumed, if @type is unknown or not available, an error code will be returned and @typeVer will be 0.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>libVer</tt></i>:</span></td><td>return value for the library version (OUT)</td></tr><tr><td><span class="term"><i><tt>type</tt></i>:</span></td><td>the type of connection/driver looked at</td></tr><tr><td><span class="term"><i><tt>typeVer</tt></i>:</span></td><td>return value for the version of the hypervisor (OUT)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of failure, 0 otherwise, and values for @libVer and @typeVer have the format major * 1,000,000 + minor * 1,000 + release.</td></tr></tbody></table></div><h3><a name="virInitialize" id="virInitialize"><code>virInitialize</code></a></h3><pre class="programlisting">int virInitialize (void)<br />
</pre><p>Initialize the library. It's better to call this routine at startup in multithreaded applications to avoid potential race when initializing the library.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreate" id="virNetworkCreate"><code>virNetworkCreate</code></a></h3><pre class="programlisting">int virNetworkCreate (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Create and start a defined network. If the call succeed the network moves from the defined to the running networks pools.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNetworkCreateXML" id="virNetworkCreateXML"><code>virNetworkCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc)<br />
</pre><p>Create and start a new virtual network, based on an XML description similar to the one returned by virNetworkGetXMLDesc()</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>an XML description of the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure</td></tr></tbody></table></div><h3><a name="virNetworkDefineXML" id="virNetworkDefineXML"><code>virNetworkDefineXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml)<br />
</pre><p>Define a network, but does not create it</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>the XML description for the network, preferably in UTF-8</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>NULL in case of error, a pointer to the network otherwise</td></tr></tbody></table></div><h3><a name="virNetworkDestroy" id="virNetworkDestroy"><code>virNetworkDestroy</code></a></h3><pre class="programlisting">int virNetworkDestroy (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Destroy the network object. The running instance is shutdown if not down already and all resources used by it are given back to the hypervisor. The data structure is freed and should not be used thereafter if the call does not return an error. This function may requires privileged access</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkFree" id="virNetworkFree"><code>virNetworkFree</code></a></h3><pre class="programlisting">int virNetworkFree (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Free the network object. The running instance is kept alive. The data structure is freed and should not be used thereafter.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetAutostart" id="virNetworkGetAutostart"><code>virNetworkGetAutostart</code></a></h3><pre class="programlisting">int virNetworkGetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int * autostart)<br />
</pre><p>Provides a boolean value indicating whether the network configured to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>the value returned</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetBridgeName" id="virNetworkGetBridgeName"><code>virNetworkGetBridgeName</code></a></h3><pre class="programlisting">char * virNetworkGetBridgeName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Provides a bridge interface name to which a domain may connect a network interface in order to join the network.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated interface name, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkGetConnect" id="virNetworkGetConnect"><code>virNetworkGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virNetworkGetConnect (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> net)<br />
</pre><p>Provides the connection pointer associated with a network. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the network object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>net</tt></i>:</span></td><td>pointer to a network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virNetworkGetName" id="virNetworkGetName"><code>virNetworkGetName</code></a></h3><pre class="programlisting">const char * virNetworkGetName (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Get the public name for that network</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a pointer to the name or NULL, the string need not be deallocated its lifetime will be the same as the network object.</td></tr></tbody></table></div><h3><a name="virNetworkGetUUID" id="virNetworkGetUUID"><code>virNetworkGetUUID</code></a></h3><pre class="programlisting">int virNetworkGetUUID (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> unsigned char * uuid)<br />
</pre><p>Get the UUID for a network</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetUUIDString" id="virNetworkGetUUIDString"><code>virNetworkGetUUIDString</code></a></h3><pre class="programlisting">int virNetworkGetUUIDString (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> char * buf)<br />
</pre><p>Get the UUID for a network as string. For more information about UUID see RFC4122.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkGetXMLDesc" id="virNetworkGetXMLDesc"><code>virNetworkGetXMLDesc</code></a></h3><pre class="programlisting">char * virNetworkGetXMLDesc (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int flags)<br />
</pre><p>Provide an XML description of the network. The description may be reused later to relaunch the network with virNetworkCreateXML().</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>and OR'ed set of extraction flags, not used yet</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a 0 terminated UTF-8 encoded XML instance, or NULL in case of error. the caller must free() the returned value.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByName" id="virNetworkLookupByName"><code>virNetworkLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its name.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUID" id="virNetworkLookupByUUID"><code>virNetworkLookupByUUID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>the raw UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkLookupByUUIDString" id="virNetworkLookupByUUIDString"><code>virNetworkLookupByUUIDString</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> virNetworkLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Try to lookup a network on the given hypervisor based on its UUID.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>the string UUID for the network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a new network object or NULL in case of failure. If the network cannot be found, then <a href="libvirt-virterror.html#VIR_ERR_NO_NETWORK">VIR_ERR_NO_NETWORK</a> error is raised.</td></tr></tbody></table></div><h3><a name="virNetworkSetAutostart" id="virNetworkSetAutostart"><code>virNetworkSetAutostart</code></a></h3><pre class="programlisting">int virNetworkSetAutostart (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network, <br /> int autostart)<br />
</pre><p>Configure the network to be automatically started when the host machine boots.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>a network object</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>whether the network should be automatically started 0 or 1</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>-1 in case of error, 0 in case of success</td></tr></tbody></table></div><h3><a name="virNetworkUndefine" id="virNetworkUndefine"><code>virNetworkUndefine</code></a></h3><pre class="programlisting">int virNetworkUndefine (<a href="libvirt-libvirt.html#virNetworkPtr">virNetworkPtr</a> network)<br />
</pre><p>Undefine a network but does not stop it if it is running</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>network</tt></i>:</span></td><td>pointer to a defined network</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success, -1 in case of error</td></tr></tbody></table></div><h3><a name="virNodeGetCellsFreeMemory" id="virNodeGetCellsFreeMemory"><code>virNodeGetCellsFreeMemory</code></a></h3><pre class="programlisting">int virNodeGetCellsFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> unsigned long long * freeMems, <br /> int startCell, <br /> int maxCells)<br />
</pre><p>This call returns the amount of free memory in one or more NUMA cells. The @freeMems array must be allocated by the caller and will be filled with the amount of free memory in kilobytes for each cell requested, starting with startCell (in freeMems[0]), up to either (startCell + maxCells), or the number of additional cells in the node, whichever is smaller.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>freeMems</tt></i>:</span></td><td>pointer to the array of unsigned long long</td></tr><tr><td><span class="term"><i><tt>startCell</tt></i>:</span></td><td>index of first cell to return freeMems info on.</td></tr><tr><td><span class="term"><i><tt>maxCells</tt></i>:</span></td><td>Maximum number of cells for which freeMems information can be returned.</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of entries filled in freeMems, or -1 in case of error.</td></tr></tbody></table></div><h3><a name="virNodeGetFreeMemory" id="virNodeGetFreeMemory"><code>virNodeGetFreeMemory</code></a></h3><pre class="programlisting">unsigned long long virNodeGetFreeMemory (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn)<br />
</pre><p>provides the free memory available on the Node</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the available free memory in kilobytes or 0 in case of error</td></tr></tbody></table></div><h3><a name="virNodeGetInfo" id="virNodeGetInfo"><code>virNodeGetInfo</code></a></h3><pre class="programlisting">int virNodeGetInfo (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> <a href="libvirt-libvirt.html#virNodeInfoPtr">virNodeInfoPtr</a> info)<br />
</pre><p>Extract hardware information about the node.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to the hypervisor connection</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer to a <a href="libvirt-libvirt.html#virNodeInfo">virNodeInfo</a> structure allocated by the user</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 in case of success and -1 in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolBuild" id="virStoragePoolBuild"><code>virStoragePoolBuild</code></a></h3><pre class="programlisting">int virStoragePoolBuild (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Build the underlying storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 upon failure</td></tr></tbody></table></div><h3><a name="virStoragePoolCreate" id="virStoragePoolCreate"><code>virStoragePoolCreate</code></a></h3><pre class="programlisting">int virStoragePoolCreate (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Starts an inactive storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be started</td></tr></tbody></table></div><h3><a name="virStoragePoolCreateXML" id="virStoragePoolCreateXML"><code>virStoragePoolCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolCreateXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xmlDesc, <br /> unsigned int flags)<br />
</pre><p>Create a new storage based on its XML description. The pool is not persistent, so its definition will disappear when it is destroyed, or if the host is restarted</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xmlDesc</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDefineXML" id="virStoragePoolDefineXML"><code>virStoragePoolDefineXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolDefineXML (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * xml, <br /> unsigned int flags)<br />
</pre><p>Define a new inactive storage pool based on its XML description. The pool is persistent, until explicitly undefined.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>xml</tt></i>:</span></td><td>XML description for new pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStoragePoolDelete" id="virStoragePoolDelete"><code>virStoragePoolDelete</code></a></h3><pre class="programlisting">int virStoragePoolDelete (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Delete the underlying pool resources. This is a non-recoverable operation. The <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object itself is not free'd.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for obliteration process</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be obliterate</td></tr></tbody></table></div><h3><a name="virStoragePoolDestroy" id="virStoragePoolDestroy"><code>virStoragePoolDestroy</code></a></h3><pre class="programlisting">int virStoragePoolDestroy (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Destroy an active storage pool. This will deactivate the pool on the host, but keep any persistent config associated with it. If it has a persistent config it can later be restarted with virStoragePoolCreate(). This does not free the associated <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be destroyed</td></tr></tbody></table></div><h3><a name="virStoragePoolFree" id="virStoragePoolFree"><code>virStoragePoolFree</code></a></h3><pre class="programlisting">int virStoragePoolFree (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Free a storage pool object, releasing all memory associated with it. Does not change the state of the pool on the host.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 if it could not be free'd.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetAutostart" id="virStoragePoolGetAutostart"><code>virStoragePoolGetAutostart</code></a></h3><pre class="programlisting">int virStoragePoolGetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int * autostart)<br />
</pre><p>Fetches the value of the autostart flag, which determines whether the pool is automatically started at boot time</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>location in which to store autostart flag</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolGetConnect" id="virStoragePoolGetConnect"><code>virStoragePoolGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStoragePoolGetConnect (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Provides the connection pointer associated with a storage pool. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the pool object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetInfo" id="virStoragePoolGetInfo"><code>virStoragePoolGetInfo</code></a></h3><pre class="programlisting">int virStoragePoolGetInfo (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> <a href="libvirt-libvirt.html#virStoragePoolInfoPtr">virStoragePoolInfoPtr</a> info)<br />
</pre><p>Get volatile information about the storage pool such as free space / usage summary</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure.</td></tr></tbody></table></div><h3><a name="virStoragePoolGetName" id="virStoragePoolGetName"><code>virStoragePoolGetName</code></a></h3><pre class="programlisting">const char * virStoragePoolGetName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Fetch the locally unique name of the storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the name of the pool, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUID" id="virStoragePoolGetUUID"><code>virStoragePoolGetUUID</code></a></h3><pre class="programlisting">int virStoragePoolGetUUID (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned char * uuid)<br />
</pre><p>Fetch the globally unique ID of the storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_BUFLEN">VIR_UUID_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetUUIDString" id="virStoragePoolGetUUIDString"><code>virStoragePoolGetUUIDString</code></a></h3><pre class="programlisting">int virStoragePoolGetUUIDString (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char * buf)<br />
</pre><p>Fetch the globally unique ID of the storage pool as a string</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>buf</tt></i>:</span></td><td>buffer of <a href="libvirt-libvirt.html#VIR_UUID_STRING_BUFLEN">VIR_UUID_STRING_BUFLEN</a> bytes in size</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error;</td></tr></tbody></table></div><h3><a name="virStoragePoolGetXMLDesc" id="virStoragePoolGetXMLDesc"><code>virStoragePoolGetXMLDesc</code></a></h3><pre class="programlisting">char * virStoragePoolGetXMLDesc (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Fetch an XML document describing all aspects of the storage pool. This is suitable for later feeding back into the <a href="libvirt-libvirt.html#virStoragePoolCreateXML">virStoragePoolCreateXML</a> method.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML format options (set of virDomainXMLFlags)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStoragePoolListVolumes" id="virStoragePoolListVolumes"><code>virStoragePoolListVolumes</code></a></h3><pre class="programlisting">int virStoragePoolListVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> char ** const names, <br /> int maxnames)<br />
</pre><p>Fetch list of storage volume names, limiting to at most maxnames.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>names</tt></i>:</span></td><td>array in which to storage volume names</td></tr><tr><td><span class="term"><i><tt>maxnames</tt></i>:</span></td><td>size of names array</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of names fetched, or -1 on error</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByName" id="virStoragePoolLookupByName"><code>virStoragePoolLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByName (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * name)<br />
</pre><p>Fetch a storage pool based on its unique name</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUID" id="virStoragePoolLookupByUUID"><code>virStoragePoolLookupByUUID</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUID (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const unsigned char * uuid)<br />
</pre><p>Fetch a storage pool based on its globally unique id</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuid</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByUUIDString" id="virStoragePoolLookupByUUIDString"><code>virStoragePoolLookupByUUIDString</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByUUIDString (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * uuidstr)<br />
</pre><p>Fetch a storage pool based on its globally unique id</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>uuidstr</tt></i>:</span></td><td>globally unique id of pool to fetch</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolLookupByVolume" id="virStoragePoolLookupByVolume"><code>virStoragePoolLookupByVolume</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> virStoragePoolLookupByVolume (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch a storage pool which contains a particular volume</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if no matching pool is found</td></tr></tbody></table></div><h3><a name="virStoragePoolNumOfVolumes" id="virStoragePoolNumOfVolumes"><code>virStoragePoolNumOfVolumes</code></a></h3><pre class="programlisting">int virStoragePoolNumOfVolumes (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Fetch the number of storage volumes within a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the number of storage pools, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolRefresh" id="virStoragePoolRefresh"><code>virStoragePoolRefresh</code></a></h3><pre class="programlisting">int virStoragePoolRefresh (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> unsigned int flags)<br />
</pre><p>Request that the pool refresh its list of volumes. This may involve communicating with a remote server, and/or initializing new devices at the OS layer</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags to control refresh behaviour (currently unused, use 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 if the volume list was refreshed, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolSetAutostart" id="virStoragePoolSetAutostart"><code>virStoragePoolSetAutostart</code></a></h3><pre class="programlisting">int virStoragePoolSetAutostart (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> int autostart)<br />
</pre><p>Sets the autostart flag</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>autostart</tt></i>:</span></td><td>new flag setting</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, -1 on failure</td></tr></tbody></table></div><h3><a name="virStoragePoolUndefine" id="virStoragePoolUndefine"><code>virStoragePoolUndefine</code></a></h3><pre class="programlisting">int virStoragePoolUndefine (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool)<br />
</pre><p>Undefine an inactive storage pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a <a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> object, or NULL if creation failed</td></tr></tbody></table></div><h3><a name="virStorageVolCreateXML" id="virStorageVolCreateXML"><code>virStorageVolCreateXML</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolCreateXML (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * xmldesc, <br /> unsigned int flags)<br />
</pre><p>Create a storage volume within a pool based on an XML description. Not all pools support creation of volumes</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>xmldesc</tt></i>:</span></td><td>description of volume to create</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for creation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolDelete" id="virStorageVolDelete"><code>virStorageVolDelete</code></a></h3><pre class="programlisting">int virStorageVolDelete (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br />
</pre><p>Delete the storage volume from the pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>future flags, use 0 for now</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolFree" id="virStorageVolFree"><code>virStorageVolFree</code></a></h3><pre class="programlisting">int virStorageVolFree (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Release the storage volume handle. The underlying storage volume contains to exist</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetConnect" id="virStorageVolGetConnect"><code>virStorageVolGetConnect</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> virStorageVolGetConnect (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Provides the connection pointer associated with a storage volume. The reference counter on the connection is not increased by this call. WARNING: When writing libvirt bindings in other languages, do not use this function. Instead, store the connection and the volume object together.</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to a pool</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the <a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> or NULL in case of failure.</td></tr></tbody></table></div><h3><a name="virStorageVolGetInfo" id="virStorageVolGetInfo"><code>virStorageVolGetInfo</code></a></h3><pre class="programlisting">int virStorageVolGetInfo (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> <a href="libvirt-libvirt.html#virStorageVolInfoPtr">virStorageVolInfoPtr</a> info)<br />
</pre><p>Fetches volatile information about the storage volume such as its current allocation</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>info</tt></i>:</span></td><td>pointer at which to store info</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>0 on success, or -1 on failure</td></tr></tbody></table></div><h3><a name="virStorageVolGetKey" id="virStorageVolGetKey"><code>virStorageVolGetKey</code></a></h3><pre class="programlisting">const char * virStorageVolGetKey (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume key. This is globally unique, so the same volume will have the same key no matter what host it is accessed from</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume key, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetName" id="virStorageVolGetName"><code>virStorageVolGetName</code></a></h3><pre class="programlisting">const char * virStorageVolGetName (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume name. This is unique within the scope of a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the volume name, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetPath" id="virStorageVolGetPath"><code>virStorageVolGetPath</code></a></h3><pre class="programlisting">char * virStorageVolGetPath (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol)<br />
</pre><p>Fetch the storage volume path. Depending on the pool configuration this is either persistent across hosts, or dynamically assigned at pool startup. Consult pool documentation for information on getting the persistent naming</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the storage volume path, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolGetXMLDesc" id="virStorageVolGetXMLDesc"><code>virStorageVolGetXMLDesc</code></a></h3><pre class="programlisting">char * virStorageVolGetXMLDesc (<a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> vol, <br /> unsigned int flags)<br />
</pre><p>Fetch an XML document describing all aspects of the storage volume</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>vol</tt></i>:</span></td><td>pointer to storage volume</td></tr><tr><td><span class="term"><i><tt>flags</tt></i>:</span></td><td>flags for XML generation (unused, pass 0)</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the XML document, or NULL on error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByKey" id="virStorageVolLookupByKey"><code>virStorageVolLookupByKey</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByKey (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * key)<br />
</pre><p>Fetch a pointer to a storage volume based on its globally unique key</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>key</tt></i>:</span></td><td>globally unique key</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByName" id="virStorageVolLookupByName"><code>virStorageVolLookupByName</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByName (<a href="libvirt-libvirt.html#virStoragePoolPtr">virStoragePoolPtr</a> pool, <br /> const char * name)<br />
</pre><p>Fetch a pointer to a storage volume based on its name within a pool</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>pool</tt></i>:</span></td><td>pointer to storage pool</td></tr><tr><td><span class="term"><i><tt>name</tt></i>:</span></td><td>name of storage volume</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div><h3><a name="virStorageVolLookupByPath" id="virStorageVolLookupByPath"><code>virStorageVolLookupByPath</code></a></h3><pre class="programlisting"><a href="libvirt-libvirt.html#virStorageVolPtr">virStorageVolPtr</a> virStorageVolLookupByPath (<a href="libvirt-libvirt.html#virConnectPtr">virConnectPtr</a> conn, <br /> const char * path)<br />
</pre><p>Fetch a pointer to a storage volume based on its locally (host) unique path</p><div class="variablelist"><table border="0"><col align="left" /><tbody><tr><td><span class="term"><i><tt>conn</tt></i>:</span></td><td>pointer to hypervisor connection</td></tr><tr><td><span class="term"><i><tt>path</tt></i>:</span></td><td>locally unique path</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>a storage volume, or NULL if not found / error</td></tr></tbody></table></div></div><div id="menu"><ul class="l0"><li><a title="Front page of the libvirt website" class="inactive" href="../index.html">Home</a></li><li><a title="Details of new features and bugs fixed in each release" class="inactive" href="../news.html">News</a></li><li><a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="../downloads.html">Downloads</a></li><li><a title="Information for users, administrators and developers" class="active" href="../docs.html">Documentation</a><ul class="l1"><li><a title="Information about deploying and using libvirt" class="inactive" href="../deployment.html">Deployment</a></li><li><a title="Overview of the logical subsystems in the libvirt API" class="inactive" href="../intro.html">Architecture</a></li><li><a title="Description of the XML formats used in libvirt" class="inactive" href="../format.html">XML format</a></li><li><a title="Hypervisor specific driver information" class="inactive" href="../drivers.html">Drivers</a></li><li><a title="Reference manual for the C public API" class="active" href="../html/index.html">API reference</a><ul class="l2"><li><span class="active">libvirt</span></li><li><a title="error handling interfaces for the libvirt library" class="inactive" href="../html/libvirt-virterror.html">virterror</a></li><li><a title="matrix of API support per hypervisor per release" class="inactive" href="../hvsupport.html">Driver support</a></li></ul></li><li><a title="Bindings of the libvirt API for other languages" class="inactive" href="../bindings.html">Language bindings</a></li></ul></li><li><a title="User contributed content" class="inactive" href="../http://wiki.libvirt.org">Wiki</a></li><li><a title="Frequently asked questions" class="inactive" href="../FAQ.html">FAQ</a></li><li><a title="How and where to report bugs and request features" class="inactive" href="../bugs.html">Bug reports</a></li><li><a title="How to contact the developers via email and IRC" class="inactive" href="../contact.html">Contact</a></li><li><a title="Miscellaneous links of interest related to libvirt" class="inactive" href="../relatedlinks.html">Related Links</a></li><li><a title="Overview of all content on the website" class="inactive" href="../sitemap.html">Sitemap</a></li></ul></div></div><div id="footer"><div id="projects"><dl id="p1"><dt><a href="http://augeas.net/">Augeas</a></dt><dd><span>A configuration editing tool and API</span></dd><dt><a href="http://libvirt.org/">libvirt</a></dt><dd><span>The open source virtualization API</span></dd></dl><dl id="p2"><dt><a href="http://cobbler.et.redhat.com/">Cobbler</a></dt><dd><span>OS provisioning and profile management</span></dd><dt><a href="http://ovirt.org/">oVirt</a></dt><dd><span>Virtualization management across the data center</span></dd></dl><dl id="p3"><dt><a href="http://freeipa.org/">FreeIPA</a></dt><dd><span>Identity, policy and audit management</span></dd><dt><a href="http://virt-manager.org/">Virtual Machine Manager</a></dt><dd><span>Virtualization management from the desktop</span></dd></dl></div></div></body></html>

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<?xml version="1.0"?>
<html>
<body>
<h1>Driver support matrix</h1>
<p>
This page documents which <a href="html/">libvirt calls</a> work on
which libvirt drivers / hypervisors, and which version the API appeared
in.
</p>
<p>
This information changes frequently. This page was last checked or
updated on <i>2007-08-20</i>.
</p>
<h3>Domain functions</h3>
<p> x = not supported; empty cell means no information </p>
<table class="top_table">
<tr>
<th> Function </th>
<th> Since </th>
<th><a href="drvxen.html">Xen</a></th>
<th><a href="drvqemu.html">QEMU</a></th>
<th><a href="drvkvm.html">KVM</a></th>
<th><a href="remote.html">Remote</a></th>
</tr>
<tr>
<td> virConnectClose </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetCapabilities </td>
<td> 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetHostname </td>
<td> 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
<td> &#x2265; 0.3.3 </td>
<td> &#x2265; 0.3.3 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetMaxVcpus </td>
<td> 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetType </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetURI </td>
<td> 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectGetVersion </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectListDefinedDomains </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectListDomains </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectNumOfDefinedDomains </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectNumOfDomains </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectOpen </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virConnectOpenReadOnly </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainAttachDevice </td>
<td> 0.1.9 </td>
<td> &#x2265; 0.1.9 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainBlockStats </td>
<td> 0.3.2 </td>
<td> &#x2265; 0.3.2 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.2 </td>
</tr>
<tr>
<td> virDomainCoreDump </td>
<td> 0.1.9 </td>
<td> &#x2265; 0.1.9 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainCreate </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainCreateLinux </td>
<td> All </td>
<td> &#x2265; 0.0.5 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainDefineXML </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainDestroy </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainDetachDevice </td>
<td> 0.1.9 </td>
<td> &#x2265; 0.1.9 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainFree </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetAutostart </td>
<td> 0.2.1 </td>
<td> x </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetConnect </td>
<td> 0.3.0 </td>
<td colspan="4"> not a HV function </td>
</tr>
<tr>
<td> virDomainGetID </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetInfo </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetMaxMemory </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetMaxVcpus </td>
<td> 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetName </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetOSType </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetSchedulerParameters </td>
<td> 0.2.3 </td>
<td> &#x2265; 0.2.3 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetSchedulerType </td>
<td> 0.2.3 </td>
<td> &#x2265; 0.2.3 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetUUID </td>
<td> 0.1.10 </td>
<td> &#x2265; 0.1.10 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetUUIDString </td>
<td> 0.1.10 </td>
<td> &#x2265; 0.1.10 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainGetVcpus </td>
<td> 0.1.4 </td>
<td> &#x2265; 0.1.4 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainInterfaceStats </td>
<td> 0.3.2 </td>
<td> &#x2265; 0.3.2 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.2 </td>
</tr>
<tr>
<td> virDomainGetXMLDesc </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainLookupByID </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainLookupByName </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainLookupByUUID </td>
<td> 0.1.10 </td>
<td> &#x2265; 0.1.10 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainLookupByUUIDString </td>
<td> 0.1.10 </td>
<td> &#x2265; 0.1.10 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainMigrate </td>
<td> 0.3.2 </td>
<td> &#x2265; 0.3.2 </td>
<td> x </td>
<td> x </td>
<td> 0.3.2 </td>
</tr>
<tr>
<td> virDomainPinVcpu </td>
<td> 0.1.4 </td>
<td> &#x2265; 0.1.4 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainReboot </td>
<td> 0.1.0 </td>
<td> &#x2265; 0.1.0 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainRestore </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> &#x2265; 0.3.2 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainResume </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSave </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> &#x2265; 0.3.2 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetAutostart </td>
<td> 0.2.1 </td>
<td> x </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.2.1 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetMaxMemory </td>
<td> All </td>
<td> All </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetMemory </td>
<td> 0.1.1 </td>
<td> &#x2265; 0.1.1 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetSchedulerParameters </td>
<td> 0.2.3 </td>
<td> &#x2265; 0.2.3 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSetVcpus </td>
<td> 0.1.4 </td>
<td> &#x2265; 0.1.4 </td>
<td> x </td>
<td> x </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainShutdown </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainSuspend </td>
<td> All </td>
<td> All </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virDomainUndefine </td>
<td> 0.1.5 </td>
<td> &#x2265; 0.1.9 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virGetVersion </td>
<td> All </td>
<td> All </td>
<td colspan="3"> Returns -1 if HV unsupported. </td>
</tr>
<tr>
<td> virInitialize </td>
<td> 0.1.0 </td>
<td colspan="4"> not a HV function </td>
</tr>
<tr>
<td> virNodeGetInfo </td>
<td> 0.1.0 </td>
<td> &#x2265; 0.1.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.2.0 </td>
<td> &#x2265; 0.3.0 </td>
</tr>
<tr>
<td> virNodeGetFreeMemory </td>
<td> 0.3.3 </td>
<td> &#x2265; 0.3.3 </td>
<td> x </td>
<td> x </td>
<td> x </td>
</tr>
<tr>
<td> virNodeGetCellsFreeMemory </td>
<td> 0.3.3 </td>
<td> &#x2265; 0.3.3 </td>
<td> x </td>
<td> x </td>
<td> x </td>
</tr>
</table>
<h3>Network functions</h3>
<p>
Network functions are not hypervisor-specific.They require the libvirtd
daemon to be running. Most network functions first appeared in libvirt 0.2.0.
</p>
<table class="top_table">
<tr>
<th> Function </th>
<th> Since </th>
</tr>
<tr>
<td> virConnectNumOfNetworks </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virConnectListNetworks </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virConnectNumOfDefinedNetworks </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virConnectListDefinedNetworks </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkCreate </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkCreateXML </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkDefineXML </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkDestroy </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkFree </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetAutostart </td>
<td> 0.2.1 </td>
</tr>
<tr>
<td> virNetworkGetConnect </td>
<td> 0.3.0 </td>
</tr>
<tr>
<td> virNetworkGetBridgeName </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetName </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetUUID </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetUUIDString </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkGetXMLDesc </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkLookupByName </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkLookupByUUID </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkLookupByUUIDString </td>
<td> 0.2.0 </td>
</tr>
<tr>
<td> virNetworkSetAutostart </td>
<td> 0.2.1 </td>
</tr>
<tr>
<td> virNetworkUndefine </td>
<td> 0.2.0 </td>
</tr>
</table>
</body>
</html>

236
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<h3>what is <span class="style1">libvirt?</span></h3>
<p>Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software available
under the <a href="http://www.opensource.org/licenses/lgpl-license.html">GNU
Lesser General Public License</a>. Virtualization of the Linux Operating
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stable C API initially for <a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen
paravirtualization</a> but it can also integrate with other
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<h1>The virtualization API</h1>
<h2>libvirt is:</h2>
<ul><li>
A toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes).
</li><li>
Free software available under the
<a href="http://www.opensource.org/licenses/lgpl-license.html">GNU
Lesser General Public License</a>.
</li><li>
A long term stable C API
</li><li>
A set of bindings for common languages
</li><li>
A <a href="CIM/">CIM provider</a> for the DMTF virtualization schema
</li></ul>
<h2>libvirt supports:</h2>
<ul><li>
The <a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen</a> hypervisor
on Linux and Solaris hosts.
</li><li>
The <a href="http://fabrice.bellard.free.fr/qemu/">QEMU</a> emulator
</li><li>
The <a href="http://kvm.qumranet.com/kvmwiki">KVM</a> Linux hypervisor
</li><li>
The <a href="http://lxc.sourceforge.net/">LXC</a> Linux container system
</li><li>
The <a href="http://openvz.org/">OpenVZ</a> Linux container system
</li><li>
Storage on IDE/SCSI/USB disks, FibreChannel, LVM, iSCSI, NFS and filesystems
</li></ul>
<h2>libvirt provides:</h2>
<ul><li>Remote management using TLS encryption and x509 certificates</li><li>Remote management authenticating with Kerberos and SASL</li><li>Local access control using PolicyKit</li><li>Zero-conf discovery using Avahi mulicast-DNS</li><li>Management of virtual machines, virtual networks and storage</li></ul>
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<body>
<h1>The virtualization API</h1>
<h2>libvirt is:</h2>
<ul>
<li>
A toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes).
</li>
<li>
Free software available under the
<a href="http://www.opensource.org/licenses/lgpl-license.html">GNU
Lesser General Public License</a>.
</li>
<li>
A long term stable C API
</li>
<li>
A set of bindings for common languages
</li>
<li>
A <a href="CIM/">CIM provider</a> for the DMTF virtualization schema
</li>
</ul>
<h2>libvirt supports:</h2>
<ul>
<li>
The <a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen</a> hypervisor
on Linux and Solaris hosts.
</li>
<li>
The <a href="http://fabrice.bellard.free.fr/qemu/">QEMU</a> emulator
</li>
<li>
The <a href="http://kvm.qumranet.com/kvmwiki">KVM</a> Linux hypervisor
</li>
<li>
The <a href="http://lxc.sourceforge.net/">LXC</a> Linux container system
</li>
<li>
The <a href="http://openvz.org/">OpenVZ</a> Linux container system
</li>
<li>
Storage on IDE/SCSI/USB disks, FibreChannel, LVM, iSCSI, NFS and filesystems
</li>
</ul>
<h2>libvirt provides:</h2>
<ul>
<li>Remote management using TLS encryption and x509 certificates</li>
<li>Remote management authenticating with Kerberos and SASL</li>
<li>Local access control using PolicyKit</li>
<li>Zero-conf discovery using Avahi mulicast-DNS</li>
<li>Management of virtual machines, virtual networks and storage</li>
</ul>
<p class="image">
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<h1>Architecture</h1>
<p>Libvirt is a C toolkit to interact with the virtualization capabilities of
recent versions of Linux (and other OSes), but libvirt won't try to provide
all possible interfaces for interacting with the virtualization features.</p><p>To avoid ambiguity about the terms used here here are the definitions for
some of the specific concepts used in libvirt documentation:</p><ul><li>a <strong>node</strong> is a single physical machine</li>
<li>an <strong>hypervisor</strong> is a layer of software allowing to
all possible interfaces for interacting with the virtualization features.</p>
<p>To avoid ambiguity about the terms used here here are the definitions for
some of the specific concepts used in libvirt documentation:</p>
<ul><li>a <strong>node</strong> is a single physical machine</li><li>an <strong>hypervisor</strong> is a layer of software allowing to
virtualize a node in a set of virtual machines with possibly different
configurations than the node itself</li>
<li>a <strong>domain</strong> is an instance of an operating system running
on a virtualized machine provided by the hypervisor</li>
</ul><p style="text-align: center"><img alt="Hypervisor and domains running on a node" src="node.gif" /></p><p>Now we can define the goal of libvirt: to provide the lowest possible
generic and stable layer to manage domains on a node.</p><p>This implies the following:</p><ul><li>the API should not be targeted to a single virtualization environment
configurations than the node itself</li><li>a <strong>domain</strong> is an instance of an operating system running
on a virtualized machine provided by the hypervisor</li></ul>
<p class="image">
<img alt="Hypervisor and domains running on a node" src="node.gif" /></p>
<p>Now we can define the goal of libvirt: to provide the lowest possible
generic and stable layer to manage domains on a node.</p>
<p>This implies the following:</p>
<ul><li>the API should not be targeted to a single virtualization environment
though Xen is the current default, which also means that some very
specific capabilities which are not generic enough may not be provided as
libvirt APIs</li>
<li>the API should allow to do efficiently and cleanly all the operations
needed to manage domains on a node</li>
<li>the API will not try to provide hight level multi-nodes management
libvirt APIs</li><li>the API should allow to do efficiently and cleanly all the operations
needed to manage domains on a node</li><li>the API will not try to provide hight level multi-nodes management
features like load balancing, though they could be implemented on top of
libvirt</li>
<li>stability of the API is a big concern, libvirt should isolate
libvirt</li><li>stability of the API is a big concern, libvirt should isolate
applications from the frequent changes expected at the lower level of the
virtualization framework</li>
</ul><p>So libvirt should be a building block for higher level management tools
virtualization framework</li></ul>
<p>So libvirt should be a building block for higher level management tools
and for applications focusing on virtualization of a single node (the only
exception being domain migration between node capabilities which may need to
be added at the libvirt level). Where possible libvirt should be extendable
to be able to provide the same API for remote nodes, however this is not the
case at the moment, the code currently handle only local node accesses
(extension for remote access support is being worked on, see <a href="bugs.html">the mailing list</a> discussions about it).</p></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
(extension for remote access support is being worked on, see <a href="bugs.html">the mailing list</a> discussions about it).</p>
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</li><li>
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</li><li>
<a title="Overview of all content on the website" class="inactive" href="sitemap.html">Sitemap</a>
</li></ul>
</div>
</div>
<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
</body>
</html>

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<?xml version="1.0"?>
<html>
<body>
<h1>Architecture</h1>
<p>Libvirt is a C toolkit to interact with the virtualization capabilities of
recent versions of Linux (and other OSes), but libvirt won't try to provide
all possible interfaces for interacting with the virtualization features.</p>
<p>To avoid ambiguity about the terms used here here are the definitions for
some of the specific concepts used in libvirt documentation:</p>
<ul>
<li>a <strong>node</strong> is a single physical machine</li>
<li>an <strong>hypervisor</strong> is a layer of software allowing to
virtualize a node in a set of virtual machines with possibly different
configurations than the node itself</li>
<li>a <strong>domain</strong> is an instance of an operating system running
on a virtualized machine provided by the hypervisor</li>
</ul>
<p class="image">
<img alt="Hypervisor and domains running on a node" src="node.gif"/>
</p>
<p>Now we can define the goal of libvirt: to provide the lowest possible
generic and stable layer to manage domains on a node.</p>
<p>This implies the following:</p>
<ul>
<li>the API should not be targeted to a single virtualization environment
though Xen is the current default, which also means that some very
specific capabilities which are not generic enough may not be provided as
libvirt APIs</li>
<li>the API should allow to do efficiently and cleanly all the operations
needed to manage domains on a node</li>
<li>the API will not try to provide hight level multi-nodes management
features like load balancing, though they could be implemented on top of
libvirt</li>
<li>stability of the API is a big concern, libvirt should isolate
applications from the frequent changes expected at the lower level of the
virtualization framework</li>
</ul>
<p>So libvirt should be a building block for higher level management tools
and for applications focusing on virtualization of a single node (the only
exception being domain migration between node capabilities which may need to
be added at the libvirt level). Where possible libvirt should be extendable
to be able to provide the same API for remote nodes, however this is not the
case at the moment, the code currently handle only local node accesses
(extension for remote access support is being worked on, see <a href="bugs.html">the mailing list</a> discussions about it).</p>
</body>
</html>

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<field name='domain' type='int' info=' What part of the library raised this error'/>
<field name='message' type='char *' info=' human-readable informative error message'/>
<field name='level' type='virErrorLevel' info=' how consequent is the error'/>
<field name='conn' type='virConnectPtr' info=' the connection if available'/>
<field name='dom' type='virDomainPtr' info=' the domain if available'/>
<field name='conn' type='virConnectPtr' info=' connection if available, see note above'/>
<field name='dom' type='virDomainPtr' info=' domain if available, see note above'/>
<field name='str1' type='char *' info=' extra string information'/>
<field name='str2' type='char *' info=' extra string information'/>
<field name='str3' type='char *' info=' extra string information'/>
<field name='int1' type='int' info=' extra number information'/>
<field name='int2' type='int' info=' extra number information'/>
<field name='net' type='virNetworkPtr' info=' the network if available'/>
<field name='net' type='virNetworkPtr' info=' network if available, see note above'/>
</struct>
<typedef name='virErrorDomain' file='virterror' type='enum'/>
<typedef name='virErrorLevel' file='virterror' type='enum'/>

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#FIG 3.2
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100.00
Single
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1200 2
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<ref name='virStoragePoolGetInfo'/>
<ref name='virStorageVolGetInfo'/>
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.linkList2
{
padding: 6px;
margin: 2px;
}
#menu ul li .active {
background: #a4c6c2;
}
#menu ul.l0 li .inactive {
background: #c5dbd8;
}
#menu ul.l1 li .inactive,
#menu ul.l2 li .inactive {
background: #dfebea;
border-left: 8px solid #dfebea;
}
#menu ul.l1 li .inactive,
#menu ul.l1 li .active {
padding-left: 1em;
}
#menu ul.l1 li .inactive {
border-left: 6px solid #dfebea;
}
#menu ul.l1 li .active {
border-left: 6px solid #a5c6c2;
}
#menu ul.l2 li .inactive,
#menu ul.l2 li .active {
padding-left: 2em;
border-left: 8px solid #c5dbd8;
}
#headerLogo {
position: absolute;
top: 100px;
left: 10px;
width: 140px;
}
.llinks2 ul
{
list-style-type: none;
margin: 0;
padding: 0 0 0 10px;
}
.linkList2 .llinks2 ul li
{
font-size: 13px;
border-bottom: 1px solid #E6EEF0;
display: block;
padding: 8px 0;
}
.llinks2 h3.links2
{
background: #e6e6e6;
top: 0px;
left: 0px;
height: 104px;
width: 400px;
background: url(libvirt-header-logo.png);
}
#headerSearch {
position: absolute;
top: 0px;
right: 0px;
padding: 2em;
}
#headerSearch input {
border: 1px solid #999999;
color: #999999;
font-size: 14px;
height: 25px;
padding: 10px 0 0 5px;
margin: 15px 0 5px 5px;
}
background: white;
padding: 3px;
font-size: 1em;
}
div.deprecated pre.programlisting
{
border-style: double;
border-color: red;
}
#headerSearch #submit {
border: 1px solid #999999;
background: #eeeeee;
color: black;
padding: 3px;
font-size: 1em;
}
pre.programlisting
{
border-style: double;
background: #F0F0F0;
}
#sitemap ul li {
list-style: none;
}
#sitemap ul {
margin: 1em;
padding: 0em;
}
#sitemap ul ul {
padding-left: 2em;
}
#sitemap li {
margin: 0.5em;
}
#sitemap a {
color: inherit;
text-decoration: underline;
font-weight: bold;
}
pre {
overflow: auto;
border: 1px solid #999999;
background: #eeeeee;
color: black;
padding: 1em;
}
a {
color: #566866;
}
div.api {
border: 1px solid #999999;
background: #eeeeee;
color: black;
}
div.api pre {
margin: 0px;
border: 0px;
background: inherit;
}
div.api table {
margin: 0px;
padding-left: 2em;
font-family: fixed;
whitespace: pre;
}
h1 a, h2 a, h3 a, h4 a, h5 a {
color: inherit;
text-decoration: inherit;
}
#changelog .author {
color: #3c857c;
font-weight: bold;
}
p.image {
text-align: center;
}
.top_table {
border-collapse: collapse;
}
.top_table th {
background: #a4c6c2;
}
.top_table th a {
color: inherit;
text-decoration: inherit;
}
.top_table td, .top_table th {
border: 1px solid #999999;
}
.top_table tr:hover td, .top_table col:hover td {
background: #eeeeee;
}
.top_table tr td:hover {
background: #c5dbd8;
}
#footer {
clear: both;
position: relative;
margin: 0px;
padding: 0px;
border: 0px;
width: 100%;
background: #757575 url(footer_pattern.png) repeat-x;
height: 180px;
}
#footer p {
position: absolute;
top: 0px;
left: 0px;
margin: 0px;
border: 0px solid red;
width: 220px;
text-align: center;
}
#footer p a img {
border: 0px;
}
#projects {
margin: 0px;
border: 0px;
position: absolute;
top: 0px;
left: 0px;
width: 100%;
}
table.top_table {
border-collapse: collapse;
#projects dl {
margin: 0px;
border: 0px solid white;
background: url(footer_corner.png) no-repeat;
height: 180px;
position: absolute;
top: 0px;
left: 0px;
}
table.top_table th, table.top_table td {
vertical-align: top;
border: 1px solid #f0f0f0;
#projects #p1 {
margin-left: 25%;
width: 75%;
}
#projects #p2 {
margin-left: 50%;
width: 50%;
}
#projects #p3 {
margin-left: 75%;
width: 25%;
}
#projects dt, #projects dd {
padding: 0px;
margin: 0px;
}
#projects #p1 dt, #projects #p1 dd {
width: 33%;
}
#projects #p2 dt, #projects #p2 dd {
width: 50%;
}
#projects #p3 dt, #projects #p3 dd {
width: 99%;
}
#projects {
}
#projects span {
font-size: 0.8em;
display: block;
padding-left: 1em;
padding-top: 0.5em;
}
#projects a {
font-size: 0.8em;
display: block;
padding-left: 0.8em;
padding-top: 1em;
}
#projects a {
color: white;
text-decoration: inherit;
}
#projects span {
color: #ccc;
}

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2
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@ -0,0 +1,2 @@
@import url(generic.css);
@import url(libvirt.css);

376
docs/newapi.xsl
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@ -13,7 +13,7 @@
exclude-result-prefixes="exsl str">
<!-- Import the main part of the site stylesheets -->
<xsl:import href="site.xsl"/>
<xsl:import href="page.xsl"/>
<!-- Generate XHTML-1.0 transitional -->
<xsl:output method="xml" encoding="ISO-8859-1" indent="yes"
@ -81,14 +81,13 @@
</xsl:template>
<xsl:template match="macro" mode="toc">
<pre class="programlisting">
<xsl:text>#define </xsl:text><a href="#{@name}"><xsl:value-of select="@name"/></a>
</pre>
<xsl:text>#define </xsl:text>
<a href="#{@name}"><xsl:value-of select="@name"/></a>
<xsl:text>
</xsl:text>
</xsl:template>
<xsl:template match="variable" mode="toc">
<pre class="programlisting">
<xsl:text>Variable </xsl:text>
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="string(@type)"/>
</xsl:call-template>
@ -96,23 +95,19 @@
<a name="{@name}"></a>
<xsl:value-of select="@name"/>
<xsl:text>
</xsl:text>
</pre>
</xsl:template>
<xsl:template match="typedef" mode="toc">
<xsl:variable name="name" select="string(@name)"/>
<pre class="programlisting">
<xsl:text>typedef </xsl:text><xsl:variable name="name" select="string(@name)"/>
<xsl:choose>
<xsl:when test="@type = 'enum'">
<xsl:text>Enum </xsl:text>
<xsl:text>enum </xsl:text>
<a href="#{$name}"><xsl:value-of select="$name"/></a>
<xsl:text>
</xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:text>Typedef </xsl:text>
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="@type"/>
</xsl:call-template>
@ -122,82 +117,99 @@
</xsl:text>
</xsl:otherwise>
</xsl:choose>
</pre>
</xsl:template>
<xsl:template match="typedef[@type = 'enum']">
<xsl:variable name="name" select="string(@name)"/>
<h3>Enum <a name="{$name}"><xsl:value-of select="$name"/></a></h3>
<pre class="programlisting">
<xsl:text>Enum </xsl:text>
<xsl:value-of select="$name"/>
<xsl:text> {
<h3><a name="{$name}"><code><xsl:value-of select="$name"/></code></a></h3>
<div class="api">
<pre>
<xsl:text>enum </xsl:text>
<xsl:value-of select="$name"/>
<xsl:text> {
</xsl:text>
<xsl:for-each select="/api/symbols/enum[@type = $name]">
<xsl:sort select="@value" data-type="number" order="ascending"/>
<xsl:text> </xsl:text>
<a name="{@name}"><xsl:value-of select="@name"/></a>
<xsl:text> = </xsl:text>
<xsl:value-of select="@value"/>
<xsl:if test="@info != ''">
<xsl:text> : </xsl:text>
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="@info"/>
</xsl:call-template>
</xsl:if>
<xsl:text>
</pre>
<table>
<xsl:for-each select="/api/symbols/enum[@type = $name]">
<xsl:sort select="@value" data-type="number" order="ascending"/>
<tr>
<td><a name="{@name}"><xsl:value-of select="@name"/></a></td>
<td><xsl:text> = </xsl:text></td>
<td><xsl:value-of select="@value"/></td>
<xsl:if test="@info != ''">
<td>
<xsl:text> : </xsl:text>
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="@info"/>
</xsl:call-template>
</td>
</xsl:if>
</tr>
</xsl:for-each>
</table>
<pre>
<xsl:text>}
</xsl:text>
</xsl:for-each>
<xsl:text>}
</xsl:text>
</pre>
</pre>
</div>
</xsl:template>
<xsl:template match="struct" mode="toc">
<pre class="programlisting">
<xsl:text>Structure </xsl:text><a href="#{@name}"><xsl:value-of select="@name"/></a><br/>
<xsl:value-of select="@type"/><xsl:text>
<xsl:text>typedef </xsl:text>
<xsl:value-of select="@type"/>
<xsl:text> </xsl:text>
<a href="#{@name}"><xsl:value-of select="@name"/></a>
<xsl:text>
</xsl:text>
<xsl:if test="not(field)">
<xsl:text>The content of this structure is not made public by the API.
</xsl:text>
</xsl:if>
</pre>
</xsl:template>
<xsl:template match="struct">
<h3><a name="{@name}">Structure <xsl:value-of select="@name"/></a></h3>
<pre class="programlisting">
<xsl:text>Structure </xsl:text><xsl:value-of select="@name"/><br/>
<xsl:value-of select="@type"/><xsl:text> {
<h3><a name="{@name}"><code><xsl:value-of select="@name"/></code></a></h3>
<div class="api">
<pre>
<xsl:text>struct </xsl:text>
<xsl:value-of select="@name"/>
<xsl:text>{
</xsl:text>
<xsl:if test="not(field)">
<xsl:text>The content of this structure is not made public by the API.
</pre>
<table>
<xsl:for-each select="field">
<tr>
<td>
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="@type"/>
</xsl:call-template>
</td>
<td><xsl:value-of select="@name"/></td>
<xsl:if test="@info != ''">
<td>
<xsl:text> : </xsl:text>
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="@info"/>
</xsl:call-template>
</td>
</xsl:if>
</tr>
</xsl:for-each>
<xsl:if test="not(field)">
<tr>
<td colspan="3">
<xsl:text>The content of this structure is not made public by the API</xsl:text>
</td>
</tr>
</xsl:if>
</table>
<pre>
<xsl:text>
}
</xsl:text>
</xsl:if>
<xsl:for-each select="field">
<xsl:text> </xsl:text>
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="@type"/>
</xsl:call-template>
<xsl:text>&#9;</xsl:text>
<xsl:value-of select="@name"/>
<xsl:if test="@info != ''">
<xsl:text>&#9;: </xsl:text>
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="substring(@info, 1, 40)"/>
</xsl:call-template>
</xsl:if>
<xsl:text>
</xsl:text>
</xsl:for-each>
<xsl:text>}</xsl:text>
</pre>
</pre>
</div>
</xsl:template>
<xsl:template match="macro">
<xsl:variable name="name" select="string(@name)"/>
<h3><a name="{$name}"></a>Macro: <xsl:value-of select="$name"/></h3>
<h3><a name="{$name}"><code><xsl:value-of select="$name"/></code></a></h3>
<pre><xsl:text>#define </xsl:text><xsl:value-of select="$name"/></pre>
<p>
<xsl:call-template name="dumptext">
@ -212,7 +224,6 @@
<xsl:variable name="nlen" select="string-length($name)"/>
<xsl:variable name="tlen" select="string-length(return/@type)"/>
<xsl:variable name="blen" select="(($nlen + 8) - (($nlen + 8) mod 8)) + (($tlen + 8) - (($tlen + 8) mod 8))"/>
<pre class="programlisting">
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="return/@type"/>
</xsl:call-template>
@ -245,8 +256,7 @@
<xsl:text>&#9;&#9;&#9;&#9;&#9; </xsl:text>
</xsl:if>
</xsl:for-each>
<xsl:text>)</xsl:text>
</pre><xsl:text>
<xsl:text>)
</xsl:text>
</xsl:template>
@ -255,8 +265,7 @@
<xsl:variable name="nlen" select="string-length($name)"/>
<xsl:variable name="tlen" select="string-length(return/@type)"/>
<xsl:variable name="blen" select="(($nlen + 8) - (($nlen + 8) mod 8)) + (($tlen + 8) - (($tlen + 8) mod 8))"/>
<pre class="programlisting">
<xsl:text>Function type: </xsl:text>
<xsl:text>typedef </xsl:text>
<a href="#{$name}"><xsl:value-of select="$name"/></a>
<xsl:text>
</xsl:text>
@ -294,7 +303,6 @@
</xsl:for-each>
<xsl:text>)
</xsl:text>
</pre>
<xsl:text>
</xsl:text>
</xsl:template>
@ -304,20 +312,13 @@
<xsl:variable name="nlen" select="string-length($name)"/>
<xsl:variable name="tlen" select="string-length(return/@type)"/>
<xsl:variable name="blen" select="(($nlen + 8) - (($nlen + 8) mod 8)) + (($tlen + 8) - (($tlen + 8) mod 8))"/>
<h3>
<a name="{$name}"></a>
<xsl:text>Function type: </xsl:text>
<xsl:value-of select="$name"/>
</h3>
<h3><a name="{$name}"><code><xsl:value-of select="$name"/></code></a></h3>
<pre class="programlisting">
<xsl:text>Function type: </xsl:text>
<xsl:value-of select="$name"/>
<xsl:text>
</xsl:text>
<xsl:text>typedef </xsl:text>
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="return/@type"/>
</xsl:call-template>
<xsl:text>&#9;</xsl:text>
<xsl:text>&#9;(*</xsl:text>
<xsl:value-of select="@name"/>
<xsl:if test="$blen - 40 &lt; -8">
<xsl:text>&#9;</xsl:text>
@ -325,7 +326,7 @@
<xsl:if test="$blen - 40 &lt; 0">
<xsl:text>&#9;</xsl:text>
</xsl:if>
<xsl:text>&#9;(</xsl:text>
<xsl:text>)&#9;(</xsl:text>
<xsl:if test="not(arg)">
<xsl:text>void</xsl:text>
</xsl:if>
@ -388,7 +389,7 @@
<xsl:variable name="nlen" select="string-length($name)"/>
<xsl:variable name="tlen" select="string-length(return/@type)"/>
<xsl:variable name="blen" select="(($nlen + 8) - (($nlen + 8) mod 8)) + (($tlen + 8) - (($tlen + 8) mod 8))"/>
<h3><a name="{$name}"></a>Function: <xsl:value-of select="$name"/></h3>
<h3><a name="{$name}"><code><xsl:value-of select="$name"/></code></a></h3>
<pre class="programlisting">
<xsl:call-template name="dumptext">
<xsl:with-param name="text" select="return/@type"/>
@ -496,83 +497,50 @@
<xsl:template match="file">
<xsl:variable name="name" select="@name"/>
<xsl:variable name="title">Module <xsl:value-of select="$name"/> from <xsl:value-of select="/api/@name"/></xsl:variable>
<xsl:document href="{$htmldir}/libvirt-{$name}.html" method="xml" encoding="ISO-8859-1"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<xsl:call-template name="style"/>
<xsl:element name="title">
<xsl:value-of select="$title"/>
</xsl:element>
</head>
<body>
<div id="container">
<div id="intro">
<div id="adjustments"/>
<div id="pageHeader"/>
<div id="content2">
<xsl:call-template name="titlebox">
<xsl:with-param name="title" select="$title"/>
</xsl:call-template>
<xsl:call-template name="navbar"/>
<xsl:call-template name="description"/>
<xsl:choose>
<xsl:when test="deprecated">
<div class="deprecated">
<h2>Table of Contents</h2>
<xsl:apply-templates select="exports" mode="toc"/>
<h2>Description</h2>
<xsl:text>
</xsl:text>
<xsl:apply-templates select="exports"/>
</div>
</xsl:when>
<xsl:otherwise>
<h2>Table of Contents</h2>
<xsl:apply-templates select="exports[@type='macro']" mode="toc">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<xsl:apply-templates select="exports[@type='enum']" mode="toc">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<xsl:apply-templates select="exports[@type='typedef']" mode="toc">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<xsl:apply-templates select="exports[@type='struct']" mode="toc">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<xsl:apply-templates select="exports[@type='function']" mode="toc">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<h2>Description</h2>
<xsl:text>
</xsl:text>
<xsl:apply-templates select="exports[@type='macro']">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<xsl:apply-templates select="exports[@type='enum']">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<xsl:apply-templates select="exports[@type='typedef']">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<xsl:apply-templates select="exports[@type='struct']">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<xsl:apply-templates select="exports[@type='function']">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
</xsl:otherwise>
</xsl:choose>
</div>
</div>
<xsl:call-template name="linkList2"/>
<xsl:call-template name="bottom"/>
</div>
</body>
</html>
</xsl:document>
<html>
<body>
<h1><xsl:value-of select="$title"/></h1>
<xsl:call-template name="description"/>
<h2>Table of Contents</h2>
<xsl:if test="count(exports[@type='macro']) > 0">
<h3><a href="#macros">Macros</a></h3>
<pre>
<xsl:apply-templates select="exports[@type='macro']" mode="toc">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
</pre>
</xsl:if>
<h3><a href="#types">Types</a></h3>
<pre>
<xsl:apply-templates select="exports[@type='typedef']" mode="toc">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
</pre>
<h3><a href="#functions">Functions</a></h3>
<pre>
<xsl:apply-templates select="exports[@type='function']" mode="toc">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
</pre>
<h2>Description</h2>
<xsl:if test="count(exports[@type='macro']) > 0">
<h3><a name="macros">Macros</a></h3>
<xsl:apply-templates select="exports[@type='macro']">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
</xsl:if>
<h3><a name="types">Types</a></h3>
<xsl:apply-templates select="exports[@type='typedef']">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
<h3><a name="functions">Functions</a></h3>
<xsl:apply-templates select="exports[@type='function']">
<xsl:sort select='@symbol'/>
</xsl:apply-templates>
</body>
</html>
</xsl:template>
<xsl:template match="file" mode="toc">
@ -585,52 +553,50 @@
</xsl:template>
<xsl:template name="mainpage">
<xsl:param name="file" select="concat($htmldir, '/index.html')"/>
<xsl:variable name="title">Reference Manual for <xsl:value-of select="/api/@name"/></xsl:variable>
<xsl:document href="{$file}" method="xml" encoding="ISO-8859-1"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<xsl:call-template name="style"/>
<xsl:element name="title">
<xsl:value-of select="$title"/>
</xsl:element>
</head>
<body>
<div id="container">
<div id="intro">
<div id="adjustments"/>
<div id="pageHeader"/>
<div id="content2">
<xsl:call-template name="titlebox">
<xsl:with-param name="title" select="$title"/>
</xsl:call-template>
<h2>Table of Contents</h2>
<ul>
<xsl:apply-templates select="/api/files/file" mode="toc"/>
</ul>
</div>
</div>
<xsl:call-template name="linkList2"/>
<xsl:call-template name="bottom"/>
</div>
</body>
</html>
</xsl:document>
<html>
<body>
<h1><xsl:value-of select="$title"/></h1>
<h2>Table of Contents</h2>
<ul>
<xsl:apply-templates select="/api/files/file" mode="toc"/>
</ul>
</body>
</html>
</xsl:template>
<xsl:template match="/">
<!-- Save the main index.html as well as a couple of copies -->
<xsl:call-template name="mainpage"/>
<xsl:call-template name="mainpage">
<xsl:with-param name="file" select="concat($htmldir, '/book1.html')"/>
</xsl:call-template>
<xsl:call-template name="mainpage">
<xsl:with-param name="file" select="concat($htmldir, '/libvirt-lib.html')"/>
</xsl:call-template>
<!-- now build the file for each of the modules -->
<xsl:apply-templates select="/api/files/file"/>
<xsl:variable name="mainpage">
<xsl:call-template name="mainpage"/>
</xsl:variable>
<xsl:document
href="{concat($htmldir, '/index.html')}"
method="xml"
encoding="ISO-8859-1"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<xsl:apply-templates select="exsl:node-set($mainpage)" mode="page">
<xsl:with-param name="pagename" select="concat($htmldir, '/index.html')"/>
</xsl:apply-templates>
</xsl:document>
<xsl:for-each select="/api/files/file">
<xsl:variable name="subpage">
<xsl:apply-templates select="."/>
</xsl:variable>
<xsl:document
href="{concat($htmldir, '/libvirt-', @name, '.html')}"
method="xml"
encoding="ISO-8859-1"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<xsl:apply-templates select="exsl:node-set($subpage)" mode="page">
<xsl:with-param name="pagename" select="concat($htmldir, '/libvirt-', @name, '.html')"/>
</xsl:apply-templates>
</xsl:document>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

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docs/news.html
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<h1>Releases</h1>
<p>Here is the list of official releases, however since it is early on in the
development of libvirt, it is preferable when possible to just use the <a href="downloads.html">CVS version or snapshot</a>, contact the mailing list
and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0.4.2: Apr 8 2008</h3><ul><li>New features: memory operation for QEmu/KVM driver (Cole Robinson),
new routed networking schemas (Mads Olesen)</li>
<li>Documentation: storage documentation fixes (Atsushi Sakai), many
typo cleanups (Atsushi Sakai), string fixes (Francesco Tombolini)</li>
<li>Bug fixes: pointer errors in qemu (Jim Meyering), iSCSI login fix
and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p>
<h3>0.4.2: Apr 8 2008</h3>
<ul><li>New features: memory operation for QEmu/KVM driver (Cole Robinson),
new routed networking schemas (Mads Olesen)</li><li>Documentation: storage documentation fixes (Atsushi Sakai), many
typo cleanups (Atsushi Sakai), string fixes (Francesco Tombolini)</li><li>Bug fixes: pointer errors in qemu (Jim Meyering), iSCSI login fix
(Chris Lalancette), well formedness error in test driver capabilities
(Cole Robinson), fixes cleanup code when daemon exits (Daniel Berrange),
CD Rom change on live QEmu/KVM domains (Cole Robinson), setting scheduler
@ -17,8 +42,7 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
(Daniel Berrange), XML output fix for directory pools (Daniel Berrange),
remove dandling domain/net/conn pointers from error data, do not
ask polkit auth when root (Daniel Berrange), handling of fork and
pipe errors when starting the daemon (Richard Jones)</li>
<li>Improvements: better validation of MAC addresses (Jim Meyering and
pipe errors when starting the daemon (Richard Jones)</li><li>Improvements: better validation of MAC addresses (Jim Meyering and
Hiroyuki Kaguchi),
virsh vcpupin error report (Shigeki Sakamoto), keep boot tag on
HVM domains (Cole Robinson), virsh non-root should not be limited to read
@ -33,17 +57,15 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
move linux container support in the daemon (Dan Berrange), older
awk implementation support (Mike Gerdts), NUMA support in test
driver (Cole Robinson), xen and hvm added to test driver capabilities
(Cole Robinson)</li>
<li>Code cleanup: remove unused getopt header (Jim Meyering), mark more
strings as translatable (Guido Günther and Jim Meyering), convert
(Cole Robinson)</li><li>Code cleanup: remove unused getopt header (Jim Meyering), mark more
strings as translatable (Guido Günther and Jim Meyering), convert
error strings to something meaningful and translatable (Jim Meyering),
Linux Containers code cleanup, last error initializer (Guido Günther)</li>
</ul><h3>0.4.1: Mar 3 2008</h3><ul><li>New features: build on MacOSX (Richard Jones), storage management
(Daniel Berrange), Xenner - Xen on KVM - support (Daniel Berrange)</li>
<li>Documentation: Fix of various typos (Atsushi SAKAI), memory and
Linux Containers code cleanup, last error initializer (Guido Günther)</li></ul>
<h3>0.4.1: Mar 3 2008</h3>
<ul><li>New features: build on MacOSX (Richard Jones), storage management
(Daniel Berrange), Xenner - Xen on KVM - support (Daniel Berrange)</li><li>Documentation: Fix of various typos (Atsushi SAKAI), memory and
vcpu settings details (Richard Jones), ethernet bridging typo
(Maxwell Bottiger), add storage APIs documentation (Daniel Berrange)</li>
<li>Bug fixes: OpenVZ code compilation (Mikhail Pokidko), crash in
(Maxwell Bottiger), add storage APIs documentation (Daniel Berrange)</li><li>Bug fixes: OpenVZ code compilation (Mikhail Pokidko), crash in
policykit auth handling (Daniel Berrange), large config files
(Daniel Berrange), cpumap hypercall size (Saori Fukuta), crash
in remote auth (Daniel Berrange), ssh args error (Daniel Berrange),
@ -57,8 +79,7 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
qemud signal pipe (Daniel Berrange), double free in OpenVZ
(Anton Protopopov), handle mac without addresses (Shigeki Sakamoto),
MAC addresses checks (Shigeki Sakamoto and Richard Jones),
allow to read non-seekable files (Jim Meyering)</li>
<li>Improvements: Windows build (Richard Jones), KVM/QEmu shutdown
allow to read non-seekable files (Jim Meyering)</li><li>Improvements: Windows build (Richard Jones), KVM/QEmu shutdown
(Guido Guenther), catch virExec output on debug (Mark McLoughlin),
integration of iptables and lokkit (Mark McLoughlin), keymap
parameter for VNC servers (Daniel Hokka Zakrisson), enable debug
@ -70,8 +91,7 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
virsh commands to manipulate and create storage(Daniel Berrange),
update use of PolicyKit APIs, better detection of fedault hypervisor,
block device statistics for QEmu/KVM (Richard Jones), various improvements
for Xenner (Daniel Berrange)</li>
<li>Code cleanups: avoid warnings (Daniel Berrange), virRun helper
for Xenner (Daniel Berrange)</li><li>Code cleanups: avoid warnings (Daniel Berrange), virRun helper
function (Dan Berrange), iptable code fixes (Mark McLoughlin),
static and const cleanups (Jim Meyering), malloc and python cleanups
(Jim Meyering), xstrtol_ull and xstrtol_ll functions (Daniel Berrange),
@ -89,20 +109,19 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
refactoring of code dealing with hypervisor capabilities (Daniel
Berrange), qemudReportError to use virErrorMsg (Cole Robinson),
intemediate library and Makefiles for compiling static and coverage
rule support (Jim Meyering), cleanup of various leaks (Jim Meyering)</li>
</ul><h3>0.4.0: Dec 18 2007</h3><ul><li>New features: Compilation on Windows cygwin/mingw (Richard Jones),
rule support (Jim Meyering), cleanup of various leaks (Jim Meyering)</li></ul>
<h3>0.4.0: Dec 18 2007</h3>
<ul><li>New features: Compilation on Windows cygwin/mingw (Richard Jones),
Ruby bindings (David Lutterkort), SASL based authentication for
libvirt remote support (Daniel Berrange), PolicyKit authentication
(Daniel Berrange)</li>
<li>Documentation: example files for QEMU and libvirtd configuations
(Daniel Berrange)</li><li>Documentation: example files for QEMU and libvirtd configuations
(Daniel Berrange), english cleanups (Jim Paris), CIM and OpenVZ
references, document &lt;shareable/&gt;, daemon startup when using
QEMU/KVM, document HV support for new NUMA calls (Richard Jones),
various english fixes (Bruce Montague), OCaml docs links (Richard Jones),
describe the various bindings add Ruby link, Windows support page
(Richard Jones), authentication documentation updates (Daniel Berrange)
</li>
<li>Bug fixes: NUMA topology error handling (Beth Kon), NUMA topology
</li><li>Bug fixes: NUMA topology error handling (Beth Kon), NUMA topology
cells without CPU (Beth Kon), XML to/from XM bridge config (Daniel
Berrange), XM processing of vnc parameters (Daniel Berrange), Reset
migration source after failure (Jim Paris), negative integer in config
@ -126,8 +145,7 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
parameter setting in XM config (Saori Fukuta), credential handling
fixes (Daniel Berrange), fix compatibility with Xen 3.2.0 (Daniel
Berrange)
</li>
<li>Improvements: /etc/libvirt/qemu.conf configuration for QEMU driver
</li><li>Improvements: /etc/libvirt/qemu.conf configuration for QEMU driver
(Daniel Berrange), NUMA cpu pinning in config files (DV and Saori Fukuta),
CDRom media change in KVM/QEMU (Daniel Berrange), tests for
&lt;shareable/&gt; in configs, pinning inactive domains for Xen 3.0.3
@ -135,8 +153,7 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
--without-libvirtd config option (Richard Jones), Python bindings for
NUMA, add extra utility functions to buffer (Richard Jones),
separate qparams module for handling query parameters (Richard Jones)
</li>
<li>Code cleanups: remove virDomainRestart from API as it was never used
</li><li>Code cleanups: remove virDomainRestart from API as it was never used
(Richard Jones), constify params for attach/detach APIs (Daniel Berrange),
gcc printf attribute checkings (Jim Meyering), refactoring of device
parsing code and shell escaping (Daniel Berrange), virsh schedinfo
@ -156,11 +173,10 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
port (Richard Jones), disable the proxy if using PolicyKit, readline
availability detection, test libvirtd's config-processing code (Jim
Meyering), use a variable name as sizeof argument (Jim Meyering)
</li>
</ul><h3>0.3.3: Sep 30 2007</h3><ul><li>New features: Avahi mDNS daemon export (Daniel Berrange),
NUMA support (Beth Kan) </li>
<li>Documentation: cleanups (Toth Istvan), typos (Eduardo Pereira), </li>
<li>Bug fixes: memory corruption on large dumps (Masayuki Sunou), fix
</li></ul>
<h3>0.3.3: Sep 30 2007</h3>
<ul><li>New features: Avahi mDNS daemon export (Daniel Berrange),
NUMA support (Beth Kan) </li><li>Documentation: cleanups (Toth Istvan), typos (Eduardo Pereira), </li><li>Bug fixes: memory corruption on large dumps (Masayuki Sunou), fix
virsh vncdisplay command exit (Masayuki Sunou), Fix network stats
TX/RX result (Richard Jones), warning on Xen 3.0.3 (Richard Jones),
missing buffer check in virDomainXMLDevID (Hugh Brock), avoid zombies
@ -168,8 +184,7 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
(Richard Jones), avoid ssh tty prompt (Daniel Berrange), username
handling for remote URIs (Fabian Deutsch), fix potential crash
on multiple input XML tags (Daniel Berrange), Solaris Xen hypercalls
fixup (Mark Johnson)</li>
<li>Improvements: OpenVZ support (Shuveb Hussain and Anoop Cyriac),
fixup (Mark Johnson)</li><li>Improvements: OpenVZ support (Shuveb Hussain and Anoop Cyriac),
CD-Rom reload on XEn (Hugh Brock), PXE boot got QEmu/KVM (Daniel
Berrange), QEmu socket permissions customization (Daniel Berrange),
more QEmu support (Richard Jones), better path detection for qemu and
@ -178,46 +193,41 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
default bootloader support (Daniel Berrange), new virNodeGetFreeMemory
API, vncpasswd extraction in configuration files if secure (Mark
Johnson and Daniel Berrange), Python bindings for block and interface
statistics</li>
<li>Code cleanups: virDrvOpenRemoteFlags definition (Richard Jones),
configure tests and output (Daniel Berrange)</li>
</ul><h3>0.3.2: Aug 21 2007</h3><ul><li>New features: KVM migration and save/restore (Jim Paris),
statistics</li><li>Code cleanups: virDrvOpenRemoteFlags definition (Richard Jones),
configure tests and output (Daniel Berrange)</li></ul>
<h3>0.3.2: Aug 21 2007</h3>
<ul><li>New features: KVM migration and save/restore (Jim Paris),
added API for migration (Richard Jones), added APIs for block device and
interface statistic (Richard Jones).</li>
<li>Documentation: examples for XML network APIs,
interface statistic (Richard Jones).</li><li>Documentation: examples for XML network APIs,
fix typo and schedinfo synopsis in man page (Atsushi SAKAI),
hypervisor support page update (Richard Jones).</li>
<li>Bug fixes: remove a couple of leaks in QEmu/KVM backend(Daniel berrange),
hypervisor support page update (Richard Jones).</li><li>Bug fixes: remove a couple of leaks in QEmu/KVM backend(Daniel berrange),
fix GnuTLS 1.0 compatibility (Richard Jones), --config/-f option
mistake for libvirtd (Richard Jones), remove leak in QEmu backend
(Jim Paris), fix some QEmu communication bugs (Jim Paris), UUID
lookup though proxy fix, setvcpus checking bugs (with Atsushi SAKAI),
int checking in virsh parameters (with Masayuki Sunou), deny devices
attach/detach for &lt; Xen 3.0.4 (Masayuki Sunou), XenStore query
memory leak (Masayuki Sunou), virsh schedinfo cleanup (Saori Fukuta).</li>
<li>Improvement: virsh new ttyconsole command, networking API implementation
memory leak (Masayuki Sunou), virsh schedinfo cleanup (Saori Fukuta).</li><li>Improvement: virsh new ttyconsole command, networking API implementation
for test driver (Daniel berrange), qemu/kvm feature reporting of
ACPI/APIC (David Lutterkort), checking of QEmu architectures (Daniel
berrange), improve devices XML errors reporting (Masayuki Sunou),
speedup of domain queries on Xen (Daniel berrange), augment XML dumps
with interface devices names (Richard Jones), internal API to query
drivers for features (Richard Jones).
</li>
<li>Cleanups: Improve virNodeGetInfo implentation (Daniel berrange),
</li><li>Cleanups: Improve virNodeGetInfo implentation (Daniel berrange),
general UUID code cleanup (Daniel berrange), fix API generator
file selection. </li>
</ul><h3>0.3.1: Jul 24 2007</h3><ul><li>Documentation: index to remote page, script to test certificates,
file selection. </li></ul>
<h3>0.3.1: Jul 24 2007</h3>
<ul><li>Documentation: index to remote page, script to test certificates,
IPv6 remote support docs (Daniel Berrange), document
VIRSH_DEFAULT_CONNECT_URI in virsh man page (David Lutterkort),
Relax-NG early grammar for the network XML (David Lutterkort)</li>
<li>Bug fixes: leaks in disk XML parsing (Masayuki Sunou), hypervisor
Relax-NG early grammar for the network XML (David Lutterkort)</li><li>Bug fixes: leaks in disk XML parsing (Masayuki Sunou), hypervisor
alignment call problems on PPC64 (Christian Ehrhardt), dead client
registration in daemon event loop (Daniel Berrange), double free
in error handling (Daniel Berrange), close on exec for log file
descriptors in the daemon (Daniel Berrange), avoid caching problem
in remote daemon (Daniel Berrange), avoid crash after QEmu domain
failure (Daniel Berrange)</li>
<li>Improvements: checks of x509 certificates and keys (Daniel Berrange),
failure (Daniel Berrange)</li><li>Improvements: checks of x509 certificates and keys (Daniel Berrange),
error reports in the daemon (Daniel Berrange), checking of Ethernet MAC
addresses in XML configs (Masayuki Sunou), support for a new
clock switch between UTC and localtime (Daniel Berrange), early
@ -225,19 +235,18 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
on PS/2 and USB buses (Daniel Berrange), more tests especially
the QEmu support (Daniel Berrange), range check in credit scheduler
(with Saori Fukuta and Atsushi Sakai), add support for listen VNC
parameter un QEmu and fix command line arg (Daniel Berrange)</li>
<li>Cleanups: debug tracing (Richard Jones), removal of --with-qemud-pid-file
parameter un QEmu and fix command line arg (Daniel Berrange)</li><li>Cleanups: debug tracing (Richard Jones), removal of --with-qemud-pid-file
(Richard Jones), remove unused virDeviceMode, new util module for
code shared between drivers (Shuveb Hussain), xen header location
detection (Richard Jones)</li>
</ul><h3>0.3.0: Jul 9 2007</h3><ul><li>Secure Remote support (Richard Jones).
detection (Richard Jones)</li></ul>
<h3>0.3.0: Jul 9 2007</h3>
<ul><li>Secure Remote support (Richard Jones).
See <a href="http://libvirt.org/remote.html">the remote page</a>
of the documentation
</li><li>Documentation: remote support (Richard Jones), description of
the URI connection strings (Richard Jones), update of virsh man
page, matrix of libvirt API/hypervisor support with version
information (Richard Jones)</li>
<li>Bug fixes: examples Makefile.am generation (Richard Jones),
information (Richard Jones)</li><li>Bug fixes: examples Makefile.am generation (Richard Jones),
SetMem fix (Mark Johnson), URI handling and ordering of
drivers (Daniel Berrange), fix virsh help without hypervisor (Richard
Jones), id marshalling fix (Daniel Berrange), fix virConnectGetMaxVcpus
@ -245,14 +254,12 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
parameters handling for Xen (Richard Jones), various early remote
bug fixes (Richard Jones), remove virsh leaks of domains references
(Masayuki Sunou), configCache refill bug (Richard Jones), fix
XML serialization bugs</li>
<li>Improvements: QEmu switch to XDR-based protocol (Dan Berrange),
XML serialization bugs</li><li>Improvements: QEmu switch to XDR-based protocol (Dan Berrange),
device attach/detach commands (Masayuki Sunou), OCaml bindings
(Richard Jones), new entry points virDomainGetConnect and
virNetworkGetConnect useful for bindings (Richard Jones),
reunitifaction of remote and qemu daemon under a single libvirtd
with a config file (Daniel Berrange)</li>
<li>Cleanups: parsing of connection URIs (Richard Jones), messages
with a config file (Daniel Berrange)</li><li>Cleanups: parsing of connection URIs (Richard Jones), messages
from virsh (Saori Fukuta), Coverage files (Daniel Berrange),
Solaris fixes (Mark Johnson), avoid [r]index calls (Richard Jones),
release information in Xen backend, virsh cpupin command cleanups
@ -266,12 +273,11 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
directly (Daniel Berrange), virBuffer functions cleanups (Richard Jones),
make init script LSB compliant, error handling on lookup functions
(Richard Jones), remove internal virGetDomainByID (Richard Jones),
revamp of xen subdrivers interfaces (Richard Jones)</li>
<li>Localization updates</li>
</ul><h3>0.2.3: Jun 8 2007</h3><ul><li>Documentation: documentation for upcoming remote access (Richard Jones),
revamp of xen subdrivers interfaces (Richard Jones)</li><li>Localization updates</li></ul>
<h3>0.2.3: Jun 8 2007</h3>
<ul><li>Documentation: documentation for upcoming remote access (Richard Jones),
virConnectNumOfDefinedDomains doc (Jan Michael), virsh help messages
for dumpxml and net-dumpxml (Chris Wright), </li>
<li>Bug fixes: RelaxNG schemas regexp fix (Robin Green), RelaxNG arch bug
for dumpxml and net-dumpxml (Chris Wright), </li><li>Bug fixes: RelaxNG schemas regexp fix (Robin Green), RelaxNG arch bug
(Mark McLoughlin), large buffers bug fixes (Shigeki Sakamoto), error
on out of memory condition (Shigeki Sakamoto), virshStrdup fix, non-root
driver when using Xen bug (Richard Jones), use --strict-order when
@ -283,8 +289,7 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
fix compiler flags (Richard Jones), remove type ioemu on recent Xen
HVM for paravirt drivers (Saori Fukuta), uninitialized string bug
(Masayuki Sunou), allow init even if the daemon is not running,
XML to config fix (Daniel Berrange)</li>
<li>Improvements: add a special error class for the test module (Richard
XML to config fix (Daniel Berrange)</li><li>Improvements: add a special error class for the test module (Richard
Jones), virConnectGetCapabilities on proxy (Richard Jones), allow
network driver to decline usage (Richard Jones), extend error messages
for upcoming remote access (Richard Jones), on_reboot support for QEmu
@ -295,18 +300,17 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
insensitive and Python bindings (Richard Jones), new scheduler API
(Atsushi SAKAI), localizations updates, add logging option for virsh
(Nobuhiro Itou), allow arguments to be passed to bootloader (Hugh Brock),
increase the test suite (Daniel Berrange and Hugh Brock)</li>
<li>Cleanups: Remove VIR_DRV_OPEN_QUIET (Richard Jones), disable xm_internal.c
increase the test suite (Daniel Berrange and Hugh Brock)</li><li>Cleanups: Remove VIR_DRV_OPEN_QUIET (Richard Jones), disable xm_internal.c
for Xen &gt; 3.0.3 (Daniel Berrange), unused fields in _virDomain (Richard
Jones), export __virGetDomain and __virGetNetwork for libvirtd only
(Richard Jones), ignore old VNC config for HVM on recent Xen (Daniel
Berrange), various code cleanups, -Werror cleanup (Hugh Brock)</li>
</ul><h3>0.2.2: Apr 17 2007</h3><ul><li>Documentation: fix errors due to Amaya (with Simon Hernandez),
Berrange), various code cleanups, -Werror cleanup (Hugh Brock)</li></ul>
<h3>0.2.2: Apr 17 2007</h3>
<ul><li>Documentation: fix errors due to Amaya (with Simon Hernandez),
virsh uses kB not bytes (Atsushi SAKAI), add command line help to
qemud (Richard Jones), xenUnifiedRegister docs (Atsushi SAKAI),
strings typos (Nikolay Sivov), ilocalization probalem raised by
Thomas Canniot</li>
<li>Bug fixes: virsh memory values test (Masayuki Sunou), operations without
Thomas Canniot</li><li>Bug fixes: virsh memory values test (Masayuki Sunou), operations without
libvirt_qemud (Atsushi SAKAI), fix spec file (Florian La Roche, Jeremy
Katz, Michael Schwendt),
direct hypervisor call (Atsushi SAKAI), buffer overflow on qemu
@ -318,8 +322,7 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
McLoughlin), set VIR_CONNECT_RO on read-only connections (S.Sakamoto),
avoid memory explosion bug (Daniel Berrange), integer overflow
for qemu CPU time (Daniel Berrange), QEMU binary path check (Daniel
Berrange)</li>
<li>Cleanups: remove some global variables (Jim Meyering), printf-style
Berrange)</li><li>Cleanups: remove some global variables (Jim Meyering), printf-style
functions checks (Jim Meyering), better virsh error messages, increase
compiler checkings and security (Daniel Berrange), virBufferGrow usage
and docs, use calloc instead of malloc/memset, replace all sprintf by
@ -327,17 +330,16 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
signal handler error cleanup (Richard Jones), iptables internal code
claenup (Mark McLoughlin), unified Xen driver (Richard Jones),
cleanup XPath libxml2 calls, IPTables rules tightening (Daniel
Berrange), </li>
<li>Improvements: more regression tests on XML (Daniel Berrange), Python
Berrange), </li><li>Improvements: more regression tests on XML (Daniel Berrange), Python
bindings now generate exception in error cases (Richard Jones),
Python bindings for vir*GetAutoStart (Daniel Berrange),
handling of CD-Rom device without device name (Nobuhiro Itou),
fix hypervisor call to work with Xen 3.0.5 (Daniel Berrange),
DomainGetOSType for inactive domains (Daniel Berrange), multiple boot
devices for HVM (Daniel Berrange),
</li>
</ul><h3>0.2.1: Mar 16 2007</h3><ul><li>Various internal cleanups (Richard Jones,Daniel Berrange,Mark McLoughlin)</li>
<li>Bug fixes: libvirt_qemud daemon path (Daniel Berrange), libvirt
</li></ul>
<h3>0.2.1: Mar 16 2007</h3>
<ul><li>Various internal cleanups (Richard Jones,Daniel Berrange,Mark McLoughlin)</li><li>Bug fixes: libvirt_qemud daemon path (Daniel Berrange), libvirt
config directory (Daniel Berrange and Mark McLoughlin), memory leak
in qemud (Mark), various fixes on network support (Mark), avoid Xen
domain zombies on device hotplug errors (Daniel Berrange), various
@ -347,96 +349,55 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
(Rich Jones), read-only socket cleanup (Rich Jones), use of vnc port 5900
(Nobuhiro Itou), assorted networking fixes (Daniel Berrange), shutoff and
shutdown mismatches (Kazuki Mizushima), unlimited memory handling
(Atsushi SAKAI), python binding fixes (Tatsuro Enokura)</li>
<li>Build and portability fixes: IA64 fixes (Atsushi SAKAI), dependancies
(Atsushi SAKAI), python binding fixes (Tatsuro Enokura)</li><li>Build and portability fixes: IA64 fixes (Atsushi SAKAI), dependancies
and build (Daniel Berrange), fix xend port detection (Daniel
Berrange), icompile time warnings (Mark), avoid const related
compiler warnings (Daniel Berrange), automated builds (Daniel
Berrange), pointer/int mismatch (Richard Jones), configure time
selection of drivers, libvirt spec hacking (Daniel Berrange)</li>
<li>Add support for network autostart and init scripts (Mark McLoughlin)</li>
<li>New API virConnectGetCapabilities() to detect the virtualization
capabilities of a host (Richard Jones)</li>
<li>Minor improvements: qemud signal handling (Mark), don't shutdown or reboot
selection of drivers, libvirt spec hacking (Daniel Berrange)</li><li>Add support for network autostart and init scripts (Mark McLoughlin)</li><li>New API virConnectGetCapabilities() to detect the virtualization
capabilities of a host (Richard Jones)</li><li>Minor improvements: qemud signal handling (Mark), don't shutdown or reboot
domain0 (Kazuki Mizushima), QEmu version autodetection (Daniel Berrange),
network UUIDs (Mark), speed up UUID domain lookups (Tatsuro Enokura and
Daniel Berrange), support for paused QEmu CPU (Daniel Berrange), keymap
VNC attribute support (Takahashi Tomohiro and Daniel Berrange), maximum
number of virtual CPU (Masayuki Sunou), virtsh --readonly option (Rich
Jones), python bindings for new functions (Daniel Berrange)</li>
<li>Documentation updates especially on the XML formats</li>
</ul><h3>0.2.0: Feb 14 2007</h3><ul><li>Various internal cleanups (Mark McLoughlin, Richard Jones,
Daniel Berrange, Karel Zak)</li>
<li>Bug fixes: avoid a crash in connect (Daniel Berrange), virsh args
parsing (Richard Jones)</li>
<li>Add support for QEmu and KVM virtualization (Daniel Berrange)</li>
<li>Add support for network configuration (Mark McLoughlin)</li>
<li>Minor improvements: regression testing (Daniel Berrange),
localization string updates</li>
</ul><h3>0.1.11: Jan 22 2007</h3><ul><li>Finish XML &lt;-&gt; XM config files support</li>
<li>Remove memory leak when freeing virConf objects</li>
<li>Finishing inactive domain support (Daniel Berrange)</li>
<li>Added a Relax-NG schemas to check XML instances</li>
</ul><h3>0.1.10: Dec 20 2006</h3><ul><li>more localizations</li>
<li>bug fixes: VCPU info breakages on xen 3.0.3, xenDaemonListDomains buffer overflow (Daniel Berrange), reference count bug when creating Xen domains (Daniel Berrange).</li>
<li>improvements: support graphic framebuffer for Xen paravirt (Daniel Berrange), VNC listen IP range support (Daniel Berrange), support for default Xen config files and inactive domains of 3.0.4 (Daniel Berrange).</li>
</ul><h3>0.1.9: Nov 29 2006</h3><ul><li>python bindings: release interpeter lock when calling C (Daniel Berrange)</li>
<li>don't raise HTTP error when looking information for a domain</li>
<li>some refactoring to use the driver for all entry points</li>
<li>better error reporting (Daniel Berrange)</li>
<li>fix OS reporting when running as non-root</li>
<li>provide XML parsing errors</li>
<li>extension of the test framework (Daniel Berrange)</li>
<li>fix the reconnect regression test</li>
<li>python bindings: Domain instances now link to the Connect to avoid garbage collection and disconnect</li>
<li>separate the notion of maximum memory and current use at the XML level</li>
<li>Fix a memory leak (Daniel Berrange)</li>
<li>add support for shareable drives</li>
<li>add support for non-bridge style networking configs for guests(Daniel Berrange)</li>
<li>python bindings: fix unsigned long marshalling (Daniel Berrange)</li>
<li>new config APIs virConfNew() and virConfSetValue() to build configs from scratch</li>
<li>hot plug device support based on Michel Ponceau patch</li>
<li>added support for inactive domains, new APIs, various associated cleanup (Daniel Berrange)</li>
<li>special device model for HVM guests (Daniel Berrange)</li>
<li>add API to dump core of domains (but requires a patched xend)</li>
<li>pygrub bootloader information take over &lt;os&gt; information</li>
<li>updated the localization strings</li>
</ul><h3>0.1.8: Oct 16 2006</h3><ul><li> Bug for system with page size != 4k</li>
<li> vcpu number initialization (Philippe Berthault)</li>
<li> don't label crashed domains as shut off (Peter Vetere)</li>
<li> fix virsh man page (Noriko Mizumoto)</li>
<li> blktapdd support for alternate drivers like blktap (Daniel Berrange)</li>
<li> memory leak fixes (xend interface and XML parsing) (Daniel Berrange)</li>
<li> compile fix</li>
<li> mlock/munlock size fixes (Daniel Berrange)</li>
<li> improve error reporting</li>
</ul><h3>0.1.7: Sep 29 2006</h3><ul><li> fix a memory bug on getting vcpu information from xend (Daniel Berrange)</li>
<li> fix another problem in the hypercalls change in Xen changeset
86d26e6ec89b when getting domain information (Daniel Berrange)</li>
</ul><h3>0.1.6: Sep 22 2006</h3><ul><li>Support for localization of strings using gettext (Daniel Berrange)</li>
<li>Support for new Xen-3.0.3 cdrom and disk configuration (Daniel Berrange)</li>
<li>Support for setting VNC port when creating domains with new
xend config files (Daniel Berrange) </li>
<li>Fix bug when running against xen-3.0.2 hypercalls (Jim Fehlig)</li>
<li>Fix reconnection problem when talking directly to http xend</li>
</ul><h3>0.1.5: Sep 5 2006</h3><ul><li>Support for new hypercalls change in Xen changeset 86d26e6ec89b</li>
<li>bug fixes: virParseUUID() was wrong, netwoking for paravirt guestsi
Jones), python bindings for new functions (Daniel Berrange)</li><li>Documentation updates especially on the XML formats</li></ul>
<h3>0.2.0: Feb 14 2007</h3>
<ul><li>Various internal cleanups (Mark McLoughlin, Richard Jones,
Daniel Berrange, Karel Zak)</li><li>Bug fixes: avoid a crash in connect (Daniel Berrange), virsh args
parsing (Richard Jones)</li><li>Add support for QEmu and KVM virtualization (Daniel Berrange)</li><li>Add support for network configuration (Mark McLoughlin)</li><li>Minor improvements: regression testing (Daniel Berrange),
localization string updates</li></ul>
<h3>0.1.11: Jan 22 2007</h3>
<ul><li>Finish XML &lt;-&gt; XM config files support</li><li>Remove memory leak when freeing virConf objects</li><li>Finishing inactive domain support (Daniel Berrange)</li><li>Added a Relax-NG schemas to check XML instances</li></ul>
<h3>0.1.10: Dec 20 2006</h3>
<ul><li>more localizations</li><li>bug fixes: VCPU info breakages on xen 3.0.3, xenDaemonListDomains buffer overflow (Daniel Berrange), reference count bug when creating Xen domains (Daniel Berrange).</li><li>improvements: support graphic framebuffer for Xen paravirt (Daniel Berrange), VNC listen IP range support (Daniel Berrange), support for default Xen config files and inactive domains of 3.0.4 (Daniel Berrange).</li></ul>
<h3>0.1.9: Nov 29 2006</h3>
<ul><li>python bindings: release interpeter lock when calling C (Daniel Berrange)</li><li>don't raise HTTP error when looking information for a domain</li><li>some refactoring to use the driver for all entry points</li><li>better error reporting (Daniel Berrange)</li><li>fix OS reporting when running as non-root</li><li>provide XML parsing errors</li><li>extension of the test framework (Daniel Berrange)</li><li>fix the reconnect regression test</li><li>python bindings: Domain instances now link to the Connect to avoid garbage collection and disconnect</li><li>separate the notion of maximum memory and current use at the XML level</li><li>Fix a memory leak (Daniel Berrange)</li><li>add support for shareable drives</li><li>add support for non-bridge style networking configs for guests(Daniel Berrange)</li><li>python bindings: fix unsigned long marshalling (Daniel Berrange)</li><li>new config APIs virConfNew() and virConfSetValue() to build configs from scratch</li><li>hot plug device support based on Michel Ponceau patch</li><li>added support for inactive domains, new APIs, various associated cleanup (Daniel Berrange)</li><li>special device model for HVM guests (Daniel Berrange)</li><li>add API to dump core of domains (but requires a patched xend)</li><li>pygrub bootloader information take over &lt;os&gt; information</li><li>updated the localization strings</li></ul>
<h3>0.1.8: Oct 16 2006</h3>
<ul><li> Bug for system with page size != 4k</li><li> vcpu number initialization (Philippe Berthault)</li><li> don't label crashed domains as shut off (Peter Vetere)</li><li> fix virsh man page (Noriko Mizumoto)</li><li> blktapdd support for alternate drivers like blktap (Daniel Berrange)</li><li> memory leak fixes (xend interface and XML parsing) (Daniel Berrange)</li><li> compile fix</li><li> mlock/munlock size fixes (Daniel Berrange)</li><li> improve error reporting</li></ul>
<h3>0.1.7: Sep 29 2006</h3>
<ul><li> fix a memory bug on getting vcpu information from xend (Daniel Berrange)</li><li> fix another problem in the hypercalls change in Xen changeset
86d26e6ec89b when getting domain information (Daniel Berrange)</li></ul>
<h3>0.1.6: Sep 22 2006</h3>
<ul><li>Support for localization of strings using gettext (Daniel Berrange)</li><li>Support for new Xen-3.0.3 cdrom and disk configuration (Daniel Berrange)</li><li>Support for setting VNC port when creating domains with new
xend config files (Daniel Berrange) </li><li>Fix bug when running against xen-3.0.2 hypercalls (Jim Fehlig)</li><li>Fix reconnection problem when talking directly to http xend</li></ul>
<h3>0.1.5: Sep 5 2006</h3>
<ul><li>Support for new hypercalls change in Xen changeset 86d26e6ec89b</li><li>bug fixes: virParseUUID() was wrong, netwoking for paravirt guestsi
(Daniel Berrange), virsh on non-existent domains (Daniel Berrange),
string cast bug when handling error in python (Pete Vetere), HTTP
500 xend error code handling (Pete Vetere and Daniel Berrange)</li>
<li>improvements: test suite for SEXPR &lt;-&gt; XML format conversions (Daniel
500 xend error code handling (Pete Vetere and Daniel Berrange)</li><li>improvements: test suite for SEXPR &lt;-&gt; XML format conversions (Daniel
Berrange), virsh output regression suite (Daniel Berrange), new environ
variable VIRSH_DEFAULT_CONNECT_URI for the default URI when connecting
(Daniel Berrange), graphical console support for paravirt guests
(Jeremy Katz), parsing of simple Xen config files (with Daniel Berrange),
early work on defined (not running) domains (Daniel Berrange),
virsh output improvement (Daniel Berrange</li>
</ul><h3>0.1.4: Aug 16 2006</h3><ul><li>bug fixes: spec file fix (Mark McLoughlin), error report problem (with
virsh output improvement (Daniel Berrange</li></ul>
<h3>0.1.4: Aug 16 2006</h3>
<ul><li>bug fixes: spec file fix (Mark McLoughlin), error report problem (with
Hugh Brock), long integer in Python bindings (with Daniel Berrange), XML
generation bug for CDRom (Daniel Berrange), bug whem using number() XPath
function (Mark McLoughlin), fix python detection code, remove duplicate
initialization errors (Daniel Berrange)</li>
<li>improvements: UUID in XML description (Peter Vetere), proxy code
initialization errors (Daniel Berrange)</li><li>improvements: UUID in XML description (Peter Vetere), proxy code
cleanup, virtual CPU and affinity support + virsh support (Michel
Ponceau, Philippe Berthault, Daniel Berrange), port and tty information
for console in XML (Daniel Berrange), added XML dump to driver and proxy
@ -444,72 +405,107 @@ and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p><h3>0
floppy and cdrom (Daniel Berrange), features block in XML to report/ask
PAE, ACPI, APIC for HVM domains (Daniel Berrange), fail saide-effect
operations when using read-only connection, large improvements to test
driver (Daniel Berrange) </li>
<li>documentation: spelling (Daniel Berrange), test driver examples.</li>
</ul><h3>0.1.3: Jul 11 2006</h3><ul><li>bugfixes: build as non-root, fix xend access when root, handling of
driver (Daniel Berrange) </li><li>documentation: spelling (Daniel Berrange), test driver examples.</li></ul>
<h3>0.1.3: Jul 11 2006</h3>
<ul><li>bugfixes: build as non-root, fix xend access when root, handling of
empty XML elements (Mark McLoughlin), XML serialization and parsing fixes
(Mark McLoughlin), allow to create domains without disk (Mark
McLoughlin),</li>
<li>improvement: xenDaemonLookupByID from O(n^2) to O(n) (Daniel Berrange),
support for fully virtualized guest (Jim Fehlig, DV, Mark McLoughlin)</li>
<li>documentation: augmented to cover hvm domains</li>
</ul><h3>0.1.2: Jul 3 2006</h3><ul><li>headers include paths fixup</li>
<li>proxy mechanism for unprivileged read-only access by httpu</li>
</ul><h3>0.1.1: Jun 21 2006</h3><ul><li>building fixes: ncurses fallback (Jim Fehlig), VPATH builds (Daniel P.
Berrange)</li>
<li>driver cleanups: new entry points, cleanup of libvirt.c (with Daniel P.
Berrange)</li>
<li>Cope with API change introduced in Xen changeset 10277</li>
<li>new test driver for regression checks (Daniel P. Berrange)</li>
<li>improvements: added UUID to XML serialization, buffer usage (Karel
Zak), --connect argument to virsh (Daniel P. Berrange),</li>
<li>bug fixes: uninitialized memory access in error reporting, S-Expr
McLoughlin),</li><li>improvement: xenDaemonLookupByID from O(n^2) to O(n) (Daniel Berrange),
support for fully virtualized guest (Jim Fehlig, DV, Mark McLoughlin)</li><li>documentation: augmented to cover hvm domains</li></ul>
<h3>0.1.2: Jul 3 2006</h3>
<ul><li>headers include paths fixup</li><li>proxy mechanism for unprivileged read-only access by httpu</li></ul>
<h3>0.1.1: Jun 21 2006</h3>
<ul><li>building fixes: ncurses fallback (Jim Fehlig), VPATH builds (Daniel P.
Berrange)</li><li>driver cleanups: new entry points, cleanup of libvirt.c (with Daniel P.
Berrange)</li><li>Cope with API change introduced in Xen changeset 10277</li><li>new test driver for regression checks (Daniel P. Berrange)</li><li>improvements: added UUID to XML serialization, buffer usage (Karel
Zak), --connect argument to virsh (Daniel P. Berrange),</li><li>bug fixes: uninitialized memory access in error reporting, S-Expr
parsing (Jim Fehlig, Jeremy Katz), virConnectOpen bug, remove a TODO in
xs_internal.c</li>
<li>documentation: Python examples (David Lutterkort), new Perl binding
URL, man page update (Karel Zak)</li>
</ul><h3>0.1.0: Apr 10 2006</h3><ul><li>building fixes: --with-xen-distdir option (Ronald Aigner), out of tree
build and pkginfo cflag fix (Daniel Berrange)</li>
<li>enhancement and fixes of the XML description format (David Lutterkort
and Jim Fehlig)</li>
<li>new APIs: for Node information and Reboot</li>
<li>internal code cleanup: refactoring internals into a driver model, more
error handling, structure sharing, thread safety and ref counting</li>
<li>bug fixes: error message (Jim Meyering), error allocation in virsh (Jim
Meyering), virDomainLookupByID (Jim Fehlig),</li>
<li>documentation: updates on architecture, and format, typo fix (Jim
Meyering)</li>
<li>bindings: exception handling in examples (Jim Meyering), perl ones out
of tree (Daniel Berrange)</li>
<li>virsh: more options, create, nodeinfo (Karel Zak), renaming of some
xs_internal.c</li><li>documentation: Python examples (David Lutterkort), new Perl binding
URL, man page update (Karel Zak)</li></ul>
<h3>0.1.0: Apr 10 2006</h3>
<ul><li>building fixes: --with-xen-distdir option (Ronald Aigner), out of tree
build and pkginfo cflag fix (Daniel Berrange)</li><li>enhancement and fixes of the XML description format (David Lutterkort
and Jim Fehlig)</li><li>new APIs: for Node information and Reboot</li><li>internal code cleanup: refactoring internals into a driver model, more
error handling, structure sharing, thread safety and ref counting</li><li>bug fixes: error message (Jim Meyering), error allocation in virsh (Jim
Meyering), virDomainLookupByID (Jim Fehlig),</li><li>documentation: updates on architecture, and format, typo fix (Jim
Meyering)</li><li>bindings: exception handling in examples (Jim Meyering), perl ones out
of tree (Daniel Berrange)</li><li>virsh: more options, create, nodeinfo (Karel Zak), renaming of some
options (Karel Zak), use stderr only for errors (Karel Zak), man page
(Andrew Puch)</li>
</ul><h3>0.0.6: Feb 28 2006</h3><ul><li>add UUID lookup and extract API</li>
<li>add error handling APIs both synchronous and asynchronous</li>
<li>added minimal hook for error handling at the python level, improved the
python bindings</li>
<li>augment the documentation and tests to cover error handling</li>
</ul><h3>0.0.5: Feb 23 2006</h3><ul><li>Added XML description parsing, dependance to libxml2, implemented the
creation API virDomainCreateLinux()</li>
<li>new APIs to lookup and name domain by UUID</li>
<li>fixed the XML dump when using the Xend access</li>
<li>Fixed a few more problem related to the name change</li>
<li>Adding regression tests in python and examples in C</li>
<li>web site improvement, extended the documentation to cover the XML
format and Python API</li>
<li>Added devhelp help for Gnome/Gtk programmers</li>
</ul><h3>0.0.4: Feb 10 2006</h3><ul><li>Fix various bugs introduced in the name change</li>
</ul><h3>0.0.3: Feb 9 2006</h3><ul><li>Switch name from from 'libvir' to libvirt</li>
<li>Starting infrastructure to add code examples</li>
<li>Update of python bindings for completeness</li>
</ul><h3>0.0.2: Jan 29 2006</h3><ul><li>Update of the documentation, web site redesign (Diana Fong)</li>
<li>integration of HTTP xend RPC based on libxend by Anthony Liquori for
most operations</li>
<li>Adding Save and Restore APIs</li>
<li>extended the virsh command line tool (Karel Zak)</li>
<li>remove xenstore transactions (Anthony Liguori)</li>
<li>fix the Python bindings bug when domain and connections where freed</li>
</ul><h3>0.0.1: Dec 19 2005</h3><ul><li>First release</li>
<li>Basic management of existing Xen domains</li>
<li>Minimal autogenerated Python bindings</li>
</ul></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
(Andrew Puch)</li></ul>
<h3>0.0.6: Feb 28 2006</h3>
<ul><li>add UUID lookup and extract API</li><li>add error handling APIs both synchronous and asynchronous</li><li>added minimal hook for error handling at the python level, improved the
python bindings</li><li>augment the documentation and tests to cover error handling</li></ul>
<h3>0.0.5: Feb 23 2006</h3>
<ul><li>Added XML description parsing, dependance to libxml2, implemented the
creation API virDomainCreateLinux()</li><li>new APIs to lookup and name domain by UUID</li><li>fixed the XML dump when using the Xend access</li><li>Fixed a few more problem related to the name change</li><li>Adding regression tests in python and examples in C</li><li>web site improvement, extended the documentation to cover the XML
format and Python API</li><li>Added devhelp help for Gnome/Gtk programmers</li></ul>
<h3>0.0.4: Feb 10 2006</h3>
<ul><li>Fix various bugs introduced in the name change</li></ul>
<h3>0.0.3: Feb 9 2006</h3>
<ul><li>Switch name from from 'libvir' to libvirt</li><li>Starting infrastructure to add code examples</li><li>Update of python bindings for completeness</li></ul>
<h3>0.0.2: Jan 29 2006</h3>
<ul><li>Update of the documentation, web site redesign (Diana Fong)</li><li>integration of HTTP xend RPC based on libxend by Anthony Liquori for
most operations</li><li>Adding Save and Restore APIs</li><li>extended the virsh command line tool (Karel Zak)</li><li>remove xenstore transactions (Anthony Liguori)</li><li>fix the Python bindings bug when domain and connections where freed</li></ul>
<h3>0.0.1: Dec 19 2005</h3>
<ul><li>First release</li><li>Basic management of existing Xen domains</li><li>Minimal autogenerated Python bindings</li></ul>
</div>
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607
docs/news.html.in Normal file
View File

@ -0,0 +1,607 @@
<?xml version="1.0"?>
<html>
<body>
<h1 >Releases</h1>
<p>Here is the list of official releases, however since it is early on in the
development of libvirt, it is preferable when possible to just use the <a href="downloads.html">CVS version or snapshot</a>, contact the mailing list
and check the <a href="ChangeLog.html">ChangeLog</a> to gauge progress.</p>
<h3>0.4.2: Apr 8 2008</h3>
<ul>
<li>New features: memory operation for QEmu/KVM driver (Cole Robinson),
new routed networking schemas (Mads Olesen)</li>
<li>Documentation: storage documentation fixes (Atsushi Sakai), many
typo cleanups (Atsushi Sakai), string fixes (Francesco Tombolini)</li>
<li>Bug fixes: pointer errors in qemu (Jim Meyering), iSCSI login fix
(Chris Lalancette), well formedness error in test driver capabilities
(Cole Robinson), fixes cleanup code when daemon exits (Daniel Berrange),
CD Rom change on live QEmu/KVM domains (Cole Robinson), setting scheduler
parameter is forbidden for read-only (Saori Fukuta)i, fixes for TAP
devices (Daniel Berrange), assorted storage driver fixes (Daniel
Berrange), Makefile fixes (Jim Meyering), Xen-3.2 hypercall fix,
fix iptables rules to avoid blocking traffic within virtual network
(Daniel Berrange), XML output fix for directory pools (Daniel Berrange),
remove dandling domain/net/conn pointers from error data, do not
ask polkit auth when root (Daniel Berrange), handling of fork and
pipe errors when starting the daemon (Richard Jones)</li>
<li>Improvements: better validation of MAC addresses (Jim Meyering and
Hiroyuki Kaguchi),
virsh vcpupin error report (Shigeki Sakamoto), keep boot tag on
HVM domains (Cole Robinson), virsh non-root should not be limited to read
only anymore (Daniel Berrange), switch to polkit-auth from polkit-grant
(Daniel Berrange), better handling of missing SElinux data (Daniel
Berrange and Jim Meyering), cleanup of the connection opening logic
(Daniel Berrange), first bits of Linux Containers support (Dave Leskovec),
scheduler API support via xend (Saori Fukuta), improvement of the
testing framework and first tests (Jim Meyering), missing error
messages from virsh parameters validation (Shigeki Sakamoto),
improve support of older iscsiadm command (Chris Lalancette),
move linux container support in the daemon (Dan Berrange), older
awk implementation support (Mike Gerdts), NUMA support in test
driver (Cole Robinson), xen and hvm added to test driver capabilities
(Cole Robinson)</li>
<li>Code cleanup: remove unused getopt header (Jim Meyering), mark more
strings as translatable (Guido G&#xFC;nther and Jim Meyering), convert
error strings to something meaningful and translatable (Jim Meyering),
Linux Containers code cleanup, last error initializer (Guido G&#xFC;nther)</li>
</ul>
<h3>0.4.1: Mar 3 2008</h3>
<ul>
<li>New features: build on MacOSX (Richard Jones), storage management
(Daniel Berrange), Xenner - Xen on KVM - support (Daniel Berrange)</li>
<li>Documentation: Fix of various typos (Atsushi SAKAI), memory and
vcpu settings details (Richard Jones), ethernet bridging typo
(Maxwell Bottiger), add storage APIs documentation (Daniel Berrange)</li>
<li>Bug fixes: OpenVZ code compilation (Mikhail Pokidko), crash in
policykit auth handling (Daniel Berrange), large config files
(Daniel Berrange), cpumap hypercall size (Saori Fukuta), crash
in remote auth (Daniel Berrange), ssh args error (Daniel Berrange),
preserve vif order from config files (Hiroyuki Kaguchi), invalid
pointer access (Jim Meyering), virDomainGetXMLDesc flag handling,
device name conversion on stats (Daniel Berrange), double mutex lock
(Daniel Berrange), config file reading crashes (Guido Guenther),
xenUnifiedDomainSuspend bug (Marcus Meissner), do not crash if
/sys/hypervisor/capabilities is missing (Mark McLoughlin),
virHashRemoveSet bug (Hiroyuki Kaguchi), close-on-exec flag for
qemud signal pipe (Daniel Berrange), double free in OpenVZ
(Anton Protopopov), handle mac without addresses (Shigeki Sakamoto),
MAC addresses checks (Shigeki Sakamoto and Richard Jones),
allow to read non-seekable files (Jim Meyering)</li>
<li>Improvements: Windows build (Richard Jones), KVM/QEmu shutdown
(Guido Guenther), catch virExec output on debug (Mark McLoughlin),
integration of iptables and lokkit (Mark McLoughlin), keymap
parameter for VNC servers (Daniel Hokka Zakrisson), enable debug
by default using VIR_DEBUG (Daniel Berrange), xen 3.2 fixes
(Daniel Berrange), Python bindings for VCPU and scheduling
(Daniel Berrange), framework for automatic code syntax checks
(Jim Meyering), allow kernel+initrd setup in Xen PV (Daniel Berrange),
allow change of Disk/NIC of an inactive domains (Shigeki Sakamoto),
virsh commands to manipulate and create storage(Daniel Berrange),
update use of PolicyKit APIs, better detection of fedault hypervisor,
block device statistics for QEmu/KVM (Richard Jones), various improvements
for Xenner (Daniel Berrange)</li>
<li>Code cleanups: avoid warnings (Daniel Berrange), virRun helper
function (Dan Berrange), iptable code fixes (Mark McLoughlin),
static and const cleanups (Jim Meyering), malloc and python cleanups
(Jim Meyering), xstrtol_ull and xstrtol_ll functions (Daniel Berrange),
remove no-op networking from OpenVZ (Daniel Berrange), python generator
cleanups (Daniel Berrange), cleanup ref counting (Daniel Berrange),
remove uninitialized warnings (Jim Meyering), cleanup configure
for RHEL4 (Daniel Berrange), CR/LF cleanups (Richard Jones),
various automatic code check and associated cleanups (Jim Meyering),
various memory leaks (Jim Meyering), fix compilation when building
without Xen (Guido Guenther), mark translatables strings (Jim Meyering),
use virBufferAddLit for constant strings (Jim Meyering), fix
make distcheck (Jim Meyering), return values for python bindings (Cole
Robinson), trailing blanks fixes (Jim Meyering), gcc-4.3.0 fixes
(Mark McLoughlin), use safe read and write routines (Jim Meyering),
refactoring of code dealing with hypervisor capabilities (Daniel
Berrange), qemudReportError to use virErrorMsg (Cole Robinson),
intemediate library and Makefiles for compiling static and coverage
rule support (Jim Meyering), cleanup of various leaks (Jim Meyering)</li>
</ul>
<h3>0.4.0: Dec 18 2007</h3>
<ul>
<li>New features: Compilation on Windows cygwin/mingw (Richard Jones),
Ruby bindings (David Lutterkort), SASL based authentication for
libvirt remote support (Daniel Berrange), PolicyKit authentication
(Daniel Berrange)</li>
<li>Documentation: example files for QEMU and libvirtd configuations
(Daniel Berrange), english cleanups (Jim Paris), CIM and OpenVZ
references, document &lt;shareable/&gt;, daemon startup when using
QEMU/KVM, document HV support for new NUMA calls (Richard Jones),
various english fixes (Bruce Montague), OCaml docs links (Richard Jones),
describe the various bindings add Ruby link, Windows support page
(Richard Jones), authentication documentation updates (Daniel Berrange)
</li>
<li>Bug fixes: NUMA topology error handling (Beth Kon), NUMA topology
cells without CPU (Beth Kon), XML to/from XM bridge config (Daniel
Berrange), XM processing of vnc parameters (Daniel Berrange), Reset
migration source after failure (Jim Paris), negative integer in config
(Tatsuro Enokura), zero terminating string buffer, detect integer
overflow (Jim Meyering), QEmu command line ending fixes (Daniel Berrange),
recursion problem in the daemon (Daniel Berrange), HVM domain with CDRom
(Masayuki Sunou), off by one error in NUMA cpu count (Beth Kon),
avoid xend errors when adding disks (Masayuki Sunou), compile error
(Chris Lalancette), transposed fwrite args (Jim Meyering), compile
without xen and on solaris (Jim Paris), parsing of interface names
(Richard Jones), overflow for starts on 32bits (Daniel Berrange),
fix problems in error reporting (Saori Fukuta), wrong call to
brSetForwardDelay changed to brSetEnableSTP (Richard Jones),
allow shareable disk in old Xen, fix wrong certificate file (Jim
Meyering), avoid some startup error when non-root, off-by-1 buffer
NULL termination (Daniel Berrange), various string allocation fixes
(Daniel Berrange), avoid problems with vnetXXX interfaces in domain dumps
(Daniel Berrange), build fixes for RHEL (Daniel Berrange), virsh prompt
should not depend on uid (Richard Jones), fix scaping of '&lt;' (Richard
Jones), fix detach-disk on Xen tap devices (Saori Fukuta), CPU
parameter setting in XM config (Saori Fukuta), credential handling
fixes (Daniel Berrange), fix compatibility with Xen 3.2.0 (Daniel
Berrange)
</li>
<li>Improvements: /etc/libvirt/qemu.conf configuration for QEMU driver
(Daniel Berrange), NUMA cpu pinning in config files (DV and Saori Fukuta),
CDRom media change in KVM/QEMU (Daniel Berrange), tests for
&lt;shareable/&gt; in configs, pinning inactive domains for Xen 3.0.3
(Saori Fukuta), use gnulib for portability enhancement (Jim Meyering),
--without-libvirtd config option (Richard Jones), Python bindings for
NUMA, add extra utility functions to buffer (Richard Jones),
separate qparams module for handling query parameters (Richard Jones)
</li>
<li>Code cleanups: remove virDomainRestart from API as it was never used
(Richard Jones), constify params for attach/detach APIs (Daniel Berrange),
gcc printf attribute checkings (Jim Meyering), refactoring of device
parsing code and shell escaping (Daniel Berrange), virsh schedinfo
parameters validation (Masayuki Sunou), Avoid risk of format string abuse
(Jim Meyering), integer parsing cleanups (Jim Meyering), build out
of the source tree (Jim Meyering), URI parsing refactoring (Richard
Jones), failed strdup/malloc handling (Jim Meyering), Make "make
distcheck" work (Jim Meyering), improve xen internall error reports
(Richard Jones), cleanup of the daemon remote code (Daniel Berrange),
rename error VIR_FROM_LINUX to VIR_FROM_STATS_LINUX (Richard Jones),
don't compile the proxy if without Xen (Richard Jones), fix paths when
configuring for /usr prefix, improve error reporting code (Jim Meyering),
detect heap allocation failure (Jim Meyering), disable xen sexpr parsing
code if Xen is disabled (Daniel Berrange), cleanup of the GetType
entry point for Xen drivers, move some QEmu path handling to generic
module (Daniel Berrange), many code cleanups related to the Windows
port (Richard Jones), disable the proxy if using PolicyKit, readline
availability detection, test libvirtd's config-processing code (Jim
Meyering), use a variable name as sizeof argument (Jim Meyering)
</li>
</ul>
<h3>0.3.3: Sep 30 2007</h3>
<ul>
<li>New features: Avahi mDNS daemon export (Daniel Berrange),
NUMA support (Beth Kan) </li>
<li>Documentation: cleanups (Toth Istvan), typos (Eduardo Pereira), </li>
<li>Bug fixes: memory corruption on large dumps (Masayuki Sunou), fix
virsh vncdisplay command exit (Masayuki Sunou), Fix network stats
TX/RX result (Richard Jones), warning on Xen 3.0.3 (Richard Jones),
missing buffer check in virDomainXMLDevID (Hugh Brock), avoid zombies
when using remote (Daniel Berrange), xend connection error message
(Richard Jones), avoid ssh tty prompt (Daniel Berrange), username
handling for remote URIs (Fabian Deutsch), fix potential crash
on multiple input XML tags (Daniel Berrange), Solaris Xen hypercalls
fixup (Mark Johnson)</li>
<li>Improvements: OpenVZ support (Shuveb Hussain and Anoop Cyriac),
CD-Rom reload on XEn (Hugh Brock), PXE boot got QEmu/KVM (Daniel
Berrange), QEmu socket permissions customization (Daniel Berrange),
more QEmu support (Richard Jones), better path detection for qemu and
dnsmasq (Richard Jones), QEmu flags are per-Domain (Daniel Berrange),
virsh freecell command, Solaris portability fixes (Mark Johnson),
default bootloader support (Daniel Berrange), new virNodeGetFreeMemory
API, vncpasswd extraction in configuration files if secure (Mark
Johnson and Daniel Berrange), Python bindings for block and interface
statistics</li>
<li>Code cleanups: virDrvOpenRemoteFlags definition (Richard Jones),
configure tests and output (Daniel Berrange)</li>
</ul>
<h3>0.3.2: Aug 21 2007</h3>
<ul>
<li>New features: KVM migration and save/restore (Jim Paris),
added API for migration (Richard Jones), added APIs for block device and
interface statistic (Richard Jones).</li>
<li>Documentation: examples for XML network APIs,
fix typo and schedinfo synopsis in man page (Atsushi SAKAI),
hypervisor support page update (Richard Jones).</li>
<li>Bug fixes: remove a couple of leaks in QEmu/KVM backend(Daniel berrange),
fix GnuTLS 1.0 compatibility (Richard Jones), --config/-f option
mistake for libvirtd (Richard Jones), remove leak in QEmu backend
(Jim Paris), fix some QEmu communication bugs (Jim Paris), UUID
lookup though proxy fix, setvcpus checking bugs (with Atsushi SAKAI),
int checking in virsh parameters (with Masayuki Sunou), deny devices
attach/detach for &lt; Xen 3.0.4 (Masayuki Sunou), XenStore query
memory leak (Masayuki Sunou), virsh schedinfo cleanup (Saori Fukuta).</li>
<li>Improvement: virsh new ttyconsole command, networking API implementation
for test driver (Daniel berrange), qemu/kvm feature reporting of
ACPI/APIC (David Lutterkort), checking of QEmu architectures (Daniel
berrange), improve devices XML errors reporting (Masayuki Sunou),
speedup of domain queries on Xen (Daniel berrange), augment XML dumps
with interface devices names (Richard Jones), internal API to query
drivers for features (Richard Jones).
</li>
<li>Cleanups: Improve virNodeGetInfo implentation (Daniel berrange),
general UUID code cleanup (Daniel berrange), fix API generator
file selection. </li>
</ul>
<h3>0.3.1: Jul 24 2007</h3>
<ul>
<li>Documentation: index to remote page, script to test certificates,
IPv6 remote support docs (Daniel Berrange), document
VIRSH_DEFAULT_CONNECT_URI in virsh man page (David Lutterkort),
Relax-NG early grammar for the network XML (David Lutterkort)</li>
<li>Bug fixes: leaks in disk XML parsing (Masayuki Sunou), hypervisor
alignment call problems on PPC64 (Christian Ehrhardt), dead client
registration in daemon event loop (Daniel Berrange), double free
in error handling (Daniel Berrange), close on exec for log file
descriptors in the daemon (Daniel Berrange), avoid caching problem
in remote daemon (Daniel Berrange), avoid crash after QEmu domain
failure (Daniel Berrange)</li>
<li>Improvements: checks of x509 certificates and keys (Daniel Berrange),
error reports in the daemon (Daniel Berrange), checking of Ethernet MAC
addresses in XML configs (Masayuki Sunou), support for a new
clock switch between UTC and localtime (Daniel Berrange), early
version of OpenVZ support (Shuveb Hussain), support for input devices
on PS/2 and USB buses (Daniel Berrange), more tests especially
the QEmu support (Daniel Berrange), range check in credit scheduler
(with Saori Fukuta and Atsushi Sakai), add support for listen VNC
parameter un QEmu and fix command line arg (Daniel Berrange)</li>
<li>Cleanups: debug tracing (Richard Jones), removal of --with-qemud-pid-file
(Richard Jones), remove unused virDeviceMode, new util module for
code shared between drivers (Shuveb Hussain), xen header location
detection (Richard Jones)</li>
</ul>
<h3>0.3.0: Jul 9 2007</h3>
<ul>
<li>Secure Remote support (Richard Jones).
See <a href="http://libvirt.org/remote.html">the remote page</a>
of the documentation
</li>
<li>Documentation: remote support (Richard Jones), description of
the URI connection strings (Richard Jones), update of virsh man
page, matrix of libvirt API/hypervisor support with version
information (Richard Jones)</li>
<li>Bug fixes: examples Makefile.am generation (Richard Jones),
SetMem fix (Mark Johnson), URI handling and ordering of
drivers (Daniel Berrange), fix virsh help without hypervisor (Richard
Jones), id marshalling fix (Daniel Berrange), fix virConnectGetMaxVcpus
on remote (Richard Jones), avoid a realloc leak (Jim Meyering), scheduler
parameters handling for Xen (Richard Jones), various early remote
bug fixes (Richard Jones), remove virsh leaks of domains references
(Masayuki Sunou), configCache refill bug (Richard Jones), fix
XML serialization bugs</li>
<li>Improvements: QEmu switch to XDR-based protocol (Dan Berrange),
device attach/detach commands (Masayuki Sunou), OCaml bindings
(Richard Jones), new entry points virDomainGetConnect and
virNetworkGetConnect useful for bindings (Richard Jones),
reunitifaction of remote and qemu daemon under a single libvirtd
with a config file (Daniel Berrange)</li>
<li>Cleanups: parsing of connection URIs (Richard Jones), messages
from virsh (Saori Fukuta), Coverage files (Daniel Berrange),
Solaris fixes (Mark Johnson), avoid [r]index calls (Richard Jones),
release information in Xen backend, virsh cpupin command cleanups
(Masayuki Sunou), xen:/// suppport as standard Xen URI (Richard Jones and
Daniel Berrange), improve driver selection/decline mechanism (Richard
Jones), error reporting on XML dump (Richard Jones), Remove unused
virDomainKernel structure (Richard Jones), daemon event loop event
handling (Daniel Berrange), various unifications cleanup in the daemon
merging (Daniel Berrange), internal file and timer monitoring API
(Daniel Berrange), remove libsysfs dependancy, call brctl program
directly (Daniel Berrange), virBuffer functions cleanups (Richard Jones),
make init script LSB compliant, error handling on lookup functions
(Richard Jones), remove internal virGetDomainByID (Richard Jones),
revamp of xen subdrivers interfaces (Richard Jones)</li>
<li>Localization updates</li>
</ul>
<h3>0.2.3: Jun 8 2007</h3>
<ul>
<li>Documentation: documentation for upcoming remote access (Richard Jones),
virConnectNumOfDefinedDomains doc (Jan Michael), virsh help messages
for dumpxml and net-dumpxml (Chris Wright), </li>
<li>Bug fixes: RelaxNG schemas regexp fix (Robin Green), RelaxNG arch bug
(Mark McLoughlin), large buffers bug fixes (Shigeki Sakamoto), error
on out of memory condition (Shigeki Sakamoto), virshStrdup fix, non-root
driver when using Xen bug (Richard Jones), use --strict-order when
running dnsmasq (Daniel Berrange), virbr0 weirdness on restart (Mark
McLoughlin), keep connection error messages (Richard Jones), increase
QEmu read buffer on help (Daniel Berrange), rpm dependance on
dnsmasq (Daniel Berrange), fix XML boot device syntax (Daniel Berrange),
QEmu memory bug (Daniel Berrange), memory leak fix (Masayuki Sunou),
fix compiler flags (Richard Jones), remove type ioemu on recent Xen
HVM for paravirt drivers (Saori Fukuta), uninitialized string bug
(Masayuki Sunou), allow init even if the daemon is not running,
XML to config fix (Daniel Berrange)</li>
<li>Improvements: add a special error class for the test module (Richard
Jones), virConnectGetCapabilities on proxy (Richard Jones), allow
network driver to decline usage (Richard Jones), extend error messages
for upcoming remote access (Richard Jones), on_reboot support for QEmu
(Daniel Berrange), save daemon output in a log file (Daniel Berrange),
xenXMDomainDefineXML can override guest config (Hugh Brock),
add attach-device and detach-device commands to virsh (Masayuki Sunou
and Mark McLoughlin and Richard Jones), make virGetVersion case
insensitive and Python bindings (Richard Jones), new scheduler API
(Atsushi SAKAI), localizations updates, add logging option for virsh
(Nobuhiro Itou), allow arguments to be passed to bootloader (Hugh Brock),
increase the test suite (Daniel Berrange and Hugh Brock)</li>
<li>Cleanups: Remove VIR_DRV_OPEN_QUIET (Richard Jones), disable xm_internal.c
for Xen &gt; 3.0.3 (Daniel Berrange), unused fields in _virDomain (Richard
Jones), export __virGetDomain and __virGetNetwork for libvirtd only
(Richard Jones), ignore old VNC config for HVM on recent Xen (Daniel
Berrange), various code cleanups, -Werror cleanup (Hugh Brock)</li>
</ul>
<h3>0.2.2: Apr 17 2007</h3>
<ul>
<li>Documentation: fix errors due to Amaya (with Simon Hernandez),
virsh uses kB not bytes (Atsushi SAKAI), add command line help to
qemud (Richard Jones), xenUnifiedRegister docs (Atsushi SAKAI),
strings typos (Nikolay Sivov), ilocalization probalem raised by
Thomas Canniot</li>
<li>Bug fixes: virsh memory values test (Masayuki Sunou), operations without
libvirt_qemud (Atsushi SAKAI), fix spec file (Florian La Roche, Jeremy
Katz, Michael Schwendt),
direct hypervisor call (Atsushi SAKAI), buffer overflow on qemu
networking command (Daniel Berrange), buffer overflow in quemud (Daniel
Berrange), virsh vcpupin bug (Masayuki Sunou), host PAE detections
and strcuctures size (Richard Jones), Xen PAE flag handling (Daniel
Berrange), bridged config configuration (Daniel Berrange), erroneous
XEN_V2_OP_SETMAXMEM value (Masayuki Sunou), memory free error (Mark
McLoughlin), set VIR_CONNECT_RO on read-only connections (S.Sakamoto),
avoid memory explosion bug (Daniel Berrange), integer overflow
for qemu CPU time (Daniel Berrange), QEMU binary path check (Daniel
Berrange)</li>
<li>Cleanups: remove some global variables (Jim Meyering), printf-style
functions checks (Jim Meyering), better virsh error messages, increase
compiler checkings and security (Daniel Berrange), virBufferGrow usage
and docs, use calloc instead of malloc/memset, replace all sprintf by
snprintf, avoid configure clobbering user's CTAGS (Jim Meyering),
signal handler error cleanup (Richard Jones), iptables internal code
claenup (Mark McLoughlin), unified Xen driver (Richard Jones),
cleanup XPath libxml2 calls, IPTables rules tightening (Daniel
Berrange), </li>
<li>Improvements: more regression tests on XML (Daniel Berrange), Python
bindings now generate exception in error cases (Richard Jones),
Python bindings for vir*GetAutoStart (Daniel Berrange),
handling of CD-Rom device without device name (Nobuhiro Itou),
fix hypervisor call to work with Xen 3.0.5 (Daniel Berrange),
DomainGetOSType for inactive domains (Daniel Berrange), multiple boot
devices for HVM (Daniel Berrange),
</li>
</ul>
<h3>0.2.1: Mar 16 2007</h3>
<ul>
<li>Various internal cleanups (Richard Jones,Daniel Berrange,Mark McLoughlin)</li>
<li>Bug fixes: libvirt_qemud daemon path (Daniel Berrange), libvirt
config directory (Daniel Berrange and Mark McLoughlin), memory leak
in qemud (Mark), various fixes on network support (Mark), avoid Xen
domain zombies on device hotplug errors (Daniel Berrange), various
fixes on qemud (Mark), args parsing (Richard Jones), virsh -t argument
(Saori Fukuta), avoid virsh crash on TAB key (Daniel Berrange), detect
xend operation failures (Kazuki Mizushima), don't listen on null socket
(Rich Jones), read-only socket cleanup (Rich Jones), use of vnc port 5900
(Nobuhiro Itou), assorted networking fixes (Daniel Berrange), shutoff and
shutdown mismatches (Kazuki Mizushima), unlimited memory handling
(Atsushi SAKAI), python binding fixes (Tatsuro Enokura)</li>
<li>Build and portability fixes: IA64 fixes (Atsushi SAKAI), dependancies
and build (Daniel Berrange), fix xend port detection (Daniel
Berrange), icompile time warnings (Mark), avoid const related
compiler warnings (Daniel Berrange), automated builds (Daniel
Berrange), pointer/int mismatch (Richard Jones), configure time
selection of drivers, libvirt spec hacking (Daniel Berrange)</li>
<li>Add support for network autostart and init scripts (Mark McLoughlin)</li>
<li>New API virConnectGetCapabilities() to detect the virtualization
capabilities of a host (Richard Jones)</li>
<li>Minor improvements: qemud signal handling (Mark), don't shutdown or reboot
domain0 (Kazuki Mizushima), QEmu version autodetection (Daniel Berrange),
network UUIDs (Mark), speed up UUID domain lookups (Tatsuro Enokura and
Daniel Berrange), support for paused QEmu CPU (Daniel Berrange), keymap
VNC attribute support (Takahashi Tomohiro and Daniel Berrange), maximum
number of virtual CPU (Masayuki Sunou), virtsh --readonly option (Rich
Jones), python bindings for new functions (Daniel Berrange)</li>
<li>Documentation updates especially on the XML formats</li>
</ul>
<h3>0.2.0: Feb 14 2007</h3>
<ul>
<li>Various internal cleanups (Mark McLoughlin, Richard Jones,
Daniel Berrange, Karel Zak)</li>
<li>Bug fixes: avoid a crash in connect (Daniel Berrange), virsh args
parsing (Richard Jones)</li>
<li>Add support for QEmu and KVM virtualization (Daniel Berrange)</li>
<li>Add support for network configuration (Mark McLoughlin)</li>
<li>Minor improvements: regression testing (Daniel Berrange),
localization string updates</li>
</ul>
<h3>0.1.11: Jan 22 2007</h3>
<ul>
<li>Finish XML &lt;-&gt; XM config files support</li>
<li>Remove memory leak when freeing virConf objects</li>
<li>Finishing inactive domain support (Daniel Berrange)</li>
<li>Added a Relax-NG schemas to check XML instances</li>
</ul>
<h3>0.1.10: Dec 20 2006</h3>
<ul>
<li>more localizations</li>
<li>bug fixes: VCPU info breakages on xen 3.0.3, xenDaemonListDomains buffer overflow (Daniel Berrange), reference count bug when creating Xen domains (Daniel Berrange).</li>
<li>improvements: support graphic framebuffer for Xen paravirt (Daniel Berrange), VNC listen IP range support (Daniel Berrange), support for default Xen config files and inactive domains of 3.0.4 (Daniel Berrange).</li>
</ul>
<h3>0.1.9: Nov 29 2006</h3>
<ul>
<li>python bindings: release interpeter lock when calling C (Daniel Berrange)</li>
<li>don't raise HTTP error when looking information for a domain</li>
<li>some refactoring to use the driver for all entry points</li>
<li>better error reporting (Daniel Berrange)</li>
<li>fix OS reporting when running as non-root</li>
<li>provide XML parsing errors</li>
<li>extension of the test framework (Daniel Berrange)</li>
<li>fix the reconnect regression test</li>
<li>python bindings: Domain instances now link to the Connect to avoid garbage collection and disconnect</li>
<li>separate the notion of maximum memory and current use at the XML level</li>
<li>Fix a memory leak (Daniel Berrange)</li>
<li>add support for shareable drives</li>
<li>add support for non-bridge style networking configs for guests(Daniel Berrange)</li>
<li>python bindings: fix unsigned long marshalling (Daniel Berrange)</li>
<li>new config APIs virConfNew() and virConfSetValue() to build configs from scratch</li>
<li>hot plug device support based on Michel Ponceau patch</li>
<li>added support for inactive domains, new APIs, various associated cleanup (Daniel Berrange)</li>
<li>special device model for HVM guests (Daniel Berrange)</li>
<li>add API to dump core of domains (but requires a patched xend)</li>
<li>pygrub bootloader information take over &lt;os&gt; information</li>
<li>updated the localization strings</li>
</ul>
<h3>0.1.8: Oct 16 2006</h3>
<ul>
<li> Bug for system with page size != 4k</li>
<li> vcpu number initialization (Philippe Berthault)</li>
<li> don't label crashed domains as shut off (Peter Vetere)</li>
<li> fix virsh man page (Noriko Mizumoto)</li>
<li> blktapdd support for alternate drivers like blktap (Daniel Berrange)</li>
<li> memory leak fixes (xend interface and XML parsing) (Daniel Berrange)</li>
<li> compile fix</li>
<li> mlock/munlock size fixes (Daniel Berrange)</li>
<li> improve error reporting</li>
</ul>
<h3>0.1.7: Sep 29 2006</h3>
<ul>
<li> fix a memory bug on getting vcpu information from xend (Daniel Berrange)</li>
<li> fix another problem in the hypercalls change in Xen changeset
86d26e6ec89b when getting domain information (Daniel Berrange)</li>
</ul>
<h3>0.1.6: Sep 22 2006</h3>
<ul>
<li>Support for localization of strings using gettext (Daniel Berrange)</li>
<li>Support for new Xen-3.0.3 cdrom and disk configuration (Daniel Berrange)</li>
<li>Support for setting VNC port when creating domains with new
xend config files (Daniel Berrange) </li>
<li>Fix bug when running against xen-3.0.2 hypercalls (Jim Fehlig)</li>
<li>Fix reconnection problem when talking directly to http xend</li>
</ul>
<h3>0.1.5: Sep 5 2006</h3>
<ul>
<li>Support for new hypercalls change in Xen changeset 86d26e6ec89b</li>
<li>bug fixes: virParseUUID() was wrong, netwoking for paravirt guestsi
(Daniel Berrange), virsh on non-existent domains (Daniel Berrange),
string cast bug when handling error in python (Pete Vetere), HTTP
500 xend error code handling (Pete Vetere and Daniel Berrange)</li>
<li>improvements: test suite for SEXPR &lt;-&gt; XML format conversions (Daniel
Berrange), virsh output regression suite (Daniel Berrange), new environ
variable VIRSH_DEFAULT_CONNECT_URI for the default URI when connecting
(Daniel Berrange), graphical console support for paravirt guests
(Jeremy Katz), parsing of simple Xen config files (with Daniel Berrange),
early work on defined (not running) domains (Daniel Berrange),
virsh output improvement (Daniel Berrange</li>
</ul>
<h3>0.1.4: Aug 16 2006</h3>
<ul>
<li>bug fixes: spec file fix (Mark McLoughlin), error report problem (with
Hugh Brock), long integer in Python bindings (with Daniel Berrange), XML
generation bug for CDRom (Daniel Berrange), bug whem using number() XPath
function (Mark McLoughlin), fix python detection code, remove duplicate
initialization errors (Daniel Berrange)</li>
<li>improvements: UUID in XML description (Peter Vetere), proxy code
cleanup, virtual CPU and affinity support + virsh support (Michel
Ponceau, Philippe Berthault, Daniel Berrange), port and tty information
for console in XML (Daniel Berrange), added XML dump to driver and proxy
support (Daniel Berrange), extention of boot options with support for
floppy and cdrom (Daniel Berrange), features block in XML to report/ask
PAE, ACPI, APIC for HVM domains (Daniel Berrange), fail saide-effect
operations when using read-only connection, large improvements to test
driver (Daniel Berrange) </li>
<li>documentation: spelling (Daniel Berrange), test driver examples.</li>
</ul>
<h3>0.1.3: Jul 11 2006</h3>
<ul>
<li>bugfixes: build as non-root, fix xend access when root, handling of
empty XML elements (Mark McLoughlin), XML serialization and parsing fixes
(Mark McLoughlin), allow to create domains without disk (Mark
McLoughlin),</li>
<li>improvement: xenDaemonLookupByID from O(n^2) to O(n) (Daniel Berrange),
support for fully virtualized guest (Jim Fehlig, DV, Mark McLoughlin)</li>
<li>documentation: augmented to cover hvm domains</li>
</ul>
<h3>0.1.2: Jul 3 2006</h3>
<ul>
<li>headers include paths fixup</li>
<li>proxy mechanism for unprivileged read-only access by httpu</li>
</ul>
<h3>0.1.1: Jun 21 2006</h3>
<ul>
<li>building fixes: ncurses fallback (Jim Fehlig), VPATH builds (Daniel P.
Berrange)</li>
<li>driver cleanups: new entry points, cleanup of libvirt.c (with Daniel P.
Berrange)</li>
<li>Cope with API change introduced in Xen changeset 10277</li>
<li>new test driver for regression checks (Daniel P. Berrange)</li>
<li>improvements: added UUID to XML serialization, buffer usage (Karel
Zak), --connect argument to virsh (Daniel P. Berrange),</li>
<li>bug fixes: uninitialized memory access in error reporting, S-Expr
parsing (Jim Fehlig, Jeremy Katz), virConnectOpen bug, remove a TODO in
xs_internal.c</li>
<li>documentation: Python examples (David Lutterkort), new Perl binding
URL, man page update (Karel Zak)</li>
</ul>
<h3>0.1.0: Apr 10 2006</h3>
<ul>
<li>building fixes: --with-xen-distdir option (Ronald Aigner), out of tree
build and pkginfo cflag fix (Daniel Berrange)</li>
<li>enhancement and fixes of the XML description format (David Lutterkort
and Jim Fehlig)</li>
<li>new APIs: for Node information and Reboot</li>
<li>internal code cleanup: refactoring internals into a driver model, more
error handling, structure sharing, thread safety and ref counting</li>
<li>bug fixes: error message (Jim Meyering), error allocation in virsh (Jim
Meyering), virDomainLookupByID (Jim Fehlig),</li>
<li>documentation: updates on architecture, and format, typo fix (Jim
Meyering)</li>
<li>bindings: exception handling in examples (Jim Meyering), perl ones out
of tree (Daniel Berrange)</li>
<li>virsh: more options, create, nodeinfo (Karel Zak), renaming of some
options (Karel Zak), use stderr only for errors (Karel Zak), man page
(Andrew Puch)</li>
</ul>
<h3>0.0.6: Feb 28 2006</h3>
<ul>
<li>add UUID lookup and extract API</li>
<li>add error handling APIs both synchronous and asynchronous</li>
<li>added minimal hook for error handling at the python level, improved the
python bindings</li>
<li>augment the documentation and tests to cover error handling</li>
</ul>
<h3>0.0.5: Feb 23 2006</h3>
<ul>
<li>Added XML description parsing, dependance to libxml2, implemented the
creation API virDomainCreateLinux()</li>
<li>new APIs to lookup and name domain by UUID</li>
<li>fixed the XML dump when using the Xend access</li>
<li>Fixed a few more problem related to the name change</li>
<li>Adding regression tests in python and examples in C</li>
<li>web site improvement, extended the documentation to cover the XML
format and Python API</li>
<li>Added devhelp help for Gnome/Gtk programmers</li>
</ul>
<h3>0.0.4: Feb 10 2006</h3>
<ul>
<li>Fix various bugs introduced in the name change</li>
</ul>
<h3>0.0.3: Feb 9 2006</h3>
<ul>
<li>Switch name from from 'libvir' to libvirt</li>
<li>Starting infrastructure to add code examples</li>
<li>Update of python bindings for completeness</li>
</ul>
<h3>0.0.2: Jan 29 2006</h3>
<ul>
<li>Update of the documentation, web site redesign (Diana Fong)</li>
<li>integration of HTTP xend RPC based on libxend by Anthony Liquori for
most operations</li>
<li>Adding Save and Restore APIs</li>
<li>extended the virsh command line tool (Karel Zak)</li>
<li>remove xenstore transactions (Anthony Liguori)</li>
<li>fix the Python bindings bug when domain and connections where freed</li>
</ul>
<h3>0.0.1: Dec 19 2005</h3>
<ul>
<li>First release</li>
<li>Basic management of existing Xen domains</li>
<li>Minimal autogenerated Python bindings</li>
</ul>
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<dt><a href="http://augeas.net/">Augeas</a></dt>
<dd><span>A configuration editing tool and API</span></dd>
<dt><a href="http://libvirt.org/">libvirt</a></dt>
<dd><span>The open source virtualization API</span></dd>
</dl>
<dl id="p2">
<dt><a href="http://cobbler.et.redhat.com/">Cobbler</a></dt>
<dd><span>OS provisioning and profile management</span></dd>
<dt><a href="http://ovirt.org/">oVirt</a></dt>
<dd><span>Virtualization management across the data center</span></dd>
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<dt><a href="http://freeipa.org/">FreeIPA</a></dt>
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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="stylesheet" type="text/css" href="libvirt.css" /><link rel="SHORTCUT ICON" href="/32favicon.png" /><title>Bindings for other languages</title></head><body><div id="container"><div id="intro"><div id="adjustments"></div><div id="pageHeader"></div><div id="content2"><h1 class="style1">Bindings for other languages</h1><p>Libvirt comes with bindings to support other languages than
pure C. First the headers embeds the necessary declarations to
allow direct acces from C++ code, but also we have bindings for
higher level kind of languages:</p><ul><li>Python: Libvirt comes with direct support for the Python language
(just make sure you installed the libvirt-python package if not
compiling from sources). See below for more information about
using libvirt with python</li>
<li>Perl: Daniel Berrange provides <a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">bindings for
Perl</a>.</li>
<li>OCaml: Richard Jones supplies <a href="http://libvirt.org/ocaml/">bindings for OCaml</a>.</li>
<li>Ruby: David Lutterkork provides <a href="http://libvirt.org/ruby/">bindings for Ruby</a>.</li>
</ul><p>Support, requests or help for libvirt bindings are welcome on
the <a href="https://www.redhat.com/mailman/listinfo/libvir-list/">mailing
list</a>, as usual try to provide enough background information
and make sure you use recent version, see the <a href="bugs.html">help
page</a>.</p><p>The remaining of this page focuses on the Python bindings.</p><p>The Python binding should be complete and are mostly automatically
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<h1>Python API bindings</h1>
<p>The Python binding should be complete and are mostly automatically
generated from the formal description of the API in xml. The bindings are
articulated around 2 classes <code>virConnect</code> and virDomain mapping to
the C types. Functions in the C API taking either type as argument then
becomes methods for the classes, their name is just stripped from the
virConnect or virDomain(Get) prefix and the first letter gets converted to
lower case, for example the C functions:</p><p><code>int <a href="html/libvirt-libvirt.html#virConnectNumOfDomains">virConnectNumOfDomains</a>
(virConnectPtr conn);</code></p><p><code>int <a href="html/libvirt-libvirt.html#virDomainSetMaxMemory">virDomainSetMaxMemory</a>
(virDomainPtr domain, unsigned long memory);</code></p><p>become</p><p><code>virConn::numOfDomains(self)</code></p><p><code>virDomain::setMaxMemory(self, memory)</code></p><p>This process is fully automated, you can get a summary of the conversion
lower case, for example the C functions:</p>
<p>
<code>int <a href="html/libvirt-libvirt.html#virConnectNumOfDomains">virConnectNumOfDomains</a>
(virConnectPtr conn);</code>
</p>
<p>
<code>int <a href="html/libvirt-libvirt.html#virDomainSetMaxMemory">virDomainSetMaxMemory</a>
(virDomainPtr domain, unsigned long memory);</code>
</p>
<p>become</p>
<p>
<code>virConn::numOfDomains(self)</code>
</p>
<p>
<code>virDomain::setMaxMemory(self, memory)</code>
</p>
<p>This process is fully automated, you can get a summary of the conversion
in the file libvirtclass.txt present in the python dir or in the docs.There
is a couple of function who don't map directly to their C counterparts due to
specificities in their argument conversions:</p><ul><li><code><a href="html/libvirt-libvirt.html#virConnectListDomains">virConnectListDomains</a></code>
specificities in their argument conversions:</p>
<ul><li><code><a href="html/libvirt-libvirt.html#virConnectListDomains">virConnectListDomains</a></code>
is replaced by <code>virDomain::listDomainsID(self)</code> which returns
a list of the integer ID for the currently running domains</li>
<li><code><a href="html/libvirt-libvirt.html#virDomainGetInfo">virDomainGetInfo</a></code>
a list of the integer ID for the currently running domains</li><li><code><a href="html/libvirt-libvirt.html#virDomainGetInfo">virDomainGetInfo</a></code>
is replaced by <code>virDomain::info()</code> which returns a list of
<ol><li>state: one of the state values (virDomainState)</li>
<li>maxMemory: the maximum memory used by the domain</li>
<li>memory: the current amount of memory used by the domain</li>
<li>nbVirtCPU: the number of virtual CPU</li>
<li>cpuTime: the time used by the domain in nanoseconds</li>
</ol></li>
</ul><p>So let's look at a simple example inspired from the <code>basic.py</code>
test found in <code>python/tests/</code> in the source tree:</p><pre>import <span style="color: #0071FF; background-color: #FFFFFF">libvirt</span>
<ol><li>state: one of the state values (virDomainState)</li><li>maxMemory: the maximum memory used by the domain</li><li>memory: the current amount of memory used by the domain</li><li>nbVirtCPU: the number of virtual CPU</li><li>cpuTime: the time used by the domain in nanoseconds</li></ol></li></ul>
<p>So let's look at a simple example inspired from the <code>basic.py</code>
test found in <code>python/tests/</code> in the source tree:</p>
<pre>import <span style="color: #0071FF; background-color: #FFFFFF">libvirt</span>
import sys
conn = <span style="color: #0071FF; background-color: #FFFFFF">libvirt</span>.openReadOnly(None)
@ -53,13 +73,84 @@ except:
sys.exit(1)
print "Domain 0: id %d running %s" % (dom0.<span style="color: #FF0080; background-color: #FFFFFF">ID</span>(), dom0.<span style="color: #FF0080; background-color: #FFFFFF">OSType</span>())
print dom0.<span style="color: #FF0080; background-color: #FFFFFF">info</span>()</pre><p>There is not much to comment about it, it really is a straight mapping
from the C API, the only points to notice are:</p><ul><li>the import of the module called <code><span style="color: #0071FF; background-color: #FFFFFF">libvirt</span></code></li>
<li>getting a connection to the hypervisor, in that case using the
openReadOnly function allows the code to execute as a normal user.</li>
<li>getting an object representing the Domain 0 using <span style="color: #007F00; background-color: #FFFFFF">lookupByName</span></li>
<li>if the domain is not found a libvirtError exception will be raised</li>
<li>extracting and printing some information about the domain using
print dom0.<span style="color: #FF0080; background-color: #FFFFFF">info</span>()</pre>
<p>There is not much to comment about it, it really is a straight mapping
from the C API, the only points to notice are:</p>
<ul><li>the import of the module called <code><span style="color: #0071FF; background-color: #FFFFFF">libvirt</span></code></li><li>getting a connection to the hypervisor, in that case using the
openReadOnly function allows the code to execute as a normal user.</li><li>getting an object representing the Domain 0 using <span style="color: #007F00; background-color: #FFFFFF">lookupByName</span></li><li>if the domain is not found a libvirtError exception will be raised</li><li>extracting and printing some information about the domain using
various <span style="color: #E50073; background-color: #FFFFFF">methods</span>
associated to the virDomain class.</li>
</ul></div></div><div class="linkList2"><div class="llinks2"><h3 class="links2"><span>main menu</span></h3><ul><li><a href="index.html">Home</a></li><li><a href="news.html">Releases</a></li><li><a href="intro.html">Introduction</a></li><li><a href="architecture.html">libvirt architecture</a></li><li><a href="downloads.html">Downloads</a></li><li><a href="format.html">XML Format</a></li><li><a href="python.html">Bindings for other languages</a></li><li><a href="errors.html">Handling of errors</a></li><li><a href="FAQ.html">FAQ</a></li><li><a href="bugs.html">Reporting bugs and getting help</a></li><li><a href="windows.html">Windows support</a></li><li><a href="remote.html">Remote support</a></li><li><a href="auth.html">Access control</a></li><li><a href="uri.html">Connection URIs</a></li><li><a href="hvsupport.html">Hypervisor support</a></li><li><a href="storage.html">Storage Management</a></li><li><a href="html/index.html">API Menu</a></li><li><a href="examples/index.html">C code examples</a></li><li><a href="ChangeLog.html">Recent Changes</a></li></ul></div><div class="llinks2"><h3 class="links2"><span>related links</span></h3><ul><li><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li><li><a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li><li><a href="http://virt-manager.et.redhat.com/">virt-manager</a></li><li><a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li><li><a href="http://libvirt.org/ocaml/">OCaml bindings</a></li><li><a href="http://libvirt.org/ruby/">Ruby bindings</a></li><li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li><li><form action="search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" /></form></li><li><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li></ul><p class="credits">Graphics and design by <a href="mail:dfong@redhat.com">Diana Fong</a></p></div></div><div id="bottom"><p class="p1"></p></div></div></body></html>
associated to the virDomain class.</li></ul>
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<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
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</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
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<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
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<?xml version="1.0"?>
<html>
<body>
<h1>Python API bindings</h1>
<p>The Python binding should be complete and are mostly automatically
generated from the formal description of the API in xml. The bindings are
articulated around 2 classes <code>virConnect</code> and virDomain mapping to
the C types. Functions in the C API taking either type as argument then
becomes methods for the classes, their name is just stripped from the
virConnect or virDomain(Get) prefix and the first letter gets converted to
lower case, for example the C functions:</p>
<p>
<code>int <a href="html/libvirt-libvirt.html#virConnectNumOfDomains">virConnectNumOfDomains</a>
(virConnectPtr conn);</code>
</p>
<p>
<code>int <a href="html/libvirt-libvirt.html#virDomainSetMaxMemory">virDomainSetMaxMemory</a>
(virDomainPtr domain, unsigned long memory);</code>
</p>
<p>become</p>
<p>
<code>virConn::numOfDomains(self)</code>
</p>
<p>
<code>virDomain::setMaxMemory(self, memory)</code>
</p>
<p>This process is fully automated, you can get a summary of the conversion
in the file libvirtclass.txt present in the python dir or in the docs.There
is a couple of function who don't map directly to their C counterparts due to
specificities in their argument conversions:</p>
<ul>
<li><code><a href="html/libvirt-libvirt.html#virConnectListDomains">virConnectListDomains</a></code>
is replaced by <code>virDomain::listDomainsID(self)</code> which returns
a list of the integer ID for the currently running domains</li>
<li><code><a href="html/libvirt-libvirt.html#virDomainGetInfo">virDomainGetInfo</a></code>
is replaced by <code>virDomain::info()</code> which returns a list of
<ol><li>state: one of the state values (virDomainState)</li><li>maxMemory: the maximum memory used by the domain</li><li>memory: the current amount of memory used by the domain</li><li>nbVirtCPU: the number of virtual CPU</li><li>cpuTime: the time used by the domain in nanoseconds</li></ol></li>
</ul>
<p>So let's look at a simple example inspired from the <code>basic.py</code>
test found in <code>python/tests/</code> in the source tree:</p>
<pre>import <span style="color: #0071FF; background-color: #FFFFFF">libvirt</span>
import sys
conn = <span style="color: #0071FF; background-color: #FFFFFF">libvirt</span>.openReadOnly(None)
if conn == None:
print 'Failed to open connection to the hypervisor'
sys.exit(1)
try:
dom0 = conn.<span style="color: #007F00; background-color: #FFFFFF">lookupByName</span>("Domain-0")
except:
print 'Failed to find the main domain'
sys.exit(1)
print "Domain 0: id %d running %s" % (dom0.<span style="color: #FF0080; background-color: #FFFFFF">ID</span>(), dom0.<span style="color: #FF0080; background-color: #FFFFFF">OSType</span>())
print dom0.<span style="color: #FF0080; background-color: #FFFFFF">info</span>()</pre>
<p>There is not much to comment about it, it really is a straight mapping
from the C API, the only points to notice are:</p>
<ul>
<li>the import of the module called <code><span style="color: #0071FF; background-color: #FFFFFF">libvirt</span></code></li>
<li>getting a connection to the hypervisor, in that case using the
openReadOnly function allows the code to execute as a normal user.</li>
<li>getting an object representing the Domain 0 using <span style="color: #007F00; background-color: #FFFFFF">lookupByName</span></li>
<li>if the domain is not found a libvirtError exception will be raised</li>
<li>extracting and printing some information about the domain using
various <span style="color: #E50073; background-color: #FFFFFF">methods</span>
associated to the virDomain class.</li>
</ul>
</body>
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<h1>Related links</h1>
<p>
This page contains some links of interest in the area of virtualization.
There are separate pages covering <a href="apps.html">applications using libvirt</a>
and <a href="bindings.html">language bindings for libvirt</a>.
</p>
<h2>Other library bindings</h2>
<ul><li><a href="/CIM/">CIM provider</a></li><li><a href="http://search.cpan.org/dist/Sys-Virt/">Perl bindings</a></li><li><a href="/ocaml/">OCaml bindings</a></li><li><a href="/ruby/">Ruby bindings</a></li></ul>
<h2>Hypervisors / emulators / containers</h2>
<ul><li>
The <a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen</a> hypervisor
</li><li>
The <a href="http://fabrice.bellard.free.fr/qemu/">QEMU</a> emulator
</li><li>
The <a href="http://kvm.qumranet.com/kvmwiki">KVM</a> Linux hypervisor
</li><li>
The <a href="http://lxc.sourceforge.net/">LXC</a> Linux container system
</li><li>
The <a href="http://openvz.org/">OpenVZ</a> Linux container system
</li><li>
The <a href="http://virt.kernelnewbies.org/lguest">lGuest</a> paravirtualized hypervisor
</li><li>
The <a href="http://virt.kernelnewbies.org/Linux-VServer">Linux-VServer</a> container system
</li><li>
The <a href="http://virt.kernelnewbies.org/UML">User Mode Linux</a> paravirtualized hypervisor
</li></ul>
<h2>Virtualization technology</h2>
<ul><li>
<a href="http://virt.kernelnewbies.org/">Kernel Newbies Virtualization guide</a>
</li><li>
<a href="http://www-128.ibm.com/developerworks/linux/library/l-linuxvirt/?ca=dgr-lnxw01Virtual-Linux">IBM developerworks virtualization guide</a>
</li><li>
<a href="http://en.wikipedia.org/wiki/Virtualization">Wikipedia Virtualization</a>
</li></ul>
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<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
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<html>
<body>
<h1>Related links</h1>
<p>
This page contains some links of interest in the area of virtualization.
There are separate pages covering <a href="apps.html">applications using libvirt</a>
and <a href="bindings.html">language bindings for libvirt</a>.
</p>
<h2>Other library bindings</h2>
<ul>
<li><a href="/CIM/">CIM provider</a></li>
<li><a href="http://search.cpan.org/dist/Sys-Virt/">Perl bindings</a></li>
<li><a href="/ocaml/">OCaml bindings</a></li>
<li><a href="/ruby/">Ruby bindings</a></li>
</ul>
<h2>Hypervisors / emulators / containers</h2>
<ul>
<li>
The <a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen</a> hypervisor
</li>
<li>
The <a href="http://fabrice.bellard.free.fr/qemu/">QEMU</a> emulator
</li>
<li>
The <a href="http://kvm.qumranet.com/kvmwiki">KVM</a> Linux hypervisor
</li>
<li>
The <a href="http://lxc.sourceforge.net/">LXC</a> Linux container system
</li>
<li>
The <a href="http://openvz.org/">OpenVZ</a> Linux container system
</li>
<li>
The <a href="http://virt.kernelnewbies.org/lguest">lGuest</a> paravirtualized hypervisor
</li>
<li>
The <a href="http://virt.kernelnewbies.org/Linux-VServer">Linux-VServer</a> container system
</li>
<li>
The <a href="http://virt.kernelnewbies.org/UML">User Mode Linux</a> paravirtualized hypervisor
</li>
</ul>
<h2>Virtualization technology</h2>
<ul>
<li>
<a href="http://virt.kernelnewbies.org/">Kernel Newbies Virtualization guide</a>
</li>
<li>
<a href="http://www-128.ibm.com/developerworks/linux/library/l-linuxvirt/?ca=dgr-lnxw01Virtual-Linux">IBM developerworks virtualization guide</a>
</li>
<li>
<a href="http://en.wikipedia.org/wiki/Virtualization">Wikipedia Virtualization</a>
</li>
</ul>
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<?xml version="1.0"?>
<html>
<body>
<h1 >Remote support</h1>
<p>
Libvirt allows you to access hypervisors running on remote
machines through authenticated and encrypted connections.
</p>
<ul>
<li>
<a href="#Remote_basic_usage">Basic usage</a>
</li>
<li>
<a href="#Remote_transports">Transports</a>
</li>
<li>
<a href="#Remote_URI_reference">Remote URIs</a>
<ul>
<li>
<a href="#Remote_URI_parameters">Extra parameters</a>
</li>
</ul>
</li>
<li>
<a href="#Remote_certificates">Generating TLS certificates</a>
<ul>
<li>
<a href="#Remote_PKI">Public Key Infrastructure set up</a>
</li>
<li>
<a href="#Remote_TLS_background">Background to TLS certificates</a>
</li>
<li>
<a href="#Remote_TLS_CA">Setting up a Certificate Authority (CA)</a>
</li>
<li>
<a href="#Remote_TLS_server_certificates">Issuing server certificates</a>
</li>
<li>
<a href="#Remote_TLS_client_certificates">Issuing client certificates</a>
</li>
<li>
<a href="#Remote_TLS_troubleshooting">Troubleshooting TLS certificate problems</a>
</li>
</ul>
</li>
<li>
<a href="#Remote_libvirtd_configuration">libvirtd configuration file</a>
</li>
<li>
<a href="#Remote_IPv6">IPv6 support</a>
</li>
<li>
<a href="#Remote_limitations">Limitations</a>
</li>
<li>
<a href="#Remote_implementation_notes">Implementation notes</a>
</li>
</ul>
<h3>
<a name="Remote_basic_usage" id="Remote_basic_usage">Basic usage</a>
</h3>
<p>
On the remote machine, <code>libvirtd</code> should be running.
See <a href="#Remote_libvirtd_configuration">the section
on configuring libvirtd</a> for more information.
</p>
<p>
To tell libvirt that you want to access a remote resource,
you should supply a hostname in the normal <a href="uri.html">URI</a> that is passed
to <code>virConnectOpen</code> (or <code>virsh -c ...</code>).
For example, if you normally use <code>qemu:///system</code>
to access the system-wide QEMU daemon, then to access
the system-wide QEMU daemon on a remote machine called
<code>oirase</code> you would use <code>qemu://oirase/system</code>.
</p>
<p>
The <a href="#Remote_URI_reference">section on remote URIs</a>
describes in more detail these remote URIs.
</p>
<p>
From an API point of view, apart from the change in URI, the
API should behave the same. For example, ordinary calls
are routed over the remote connection transparently, and
values or errors from the remote side are returned to you
as if they happened locally. Some differences you may notice:
</p>
<ul>
<li> Additional errors can be generated, specifically ones
relating to failures in the remote transport itself. </li>
<li> Remote calls are handled synchronously, so they will be
much slower than, say, direct hypervisor calls. </li>
</ul>
<h3>
<a name="Remote_transports" id="Remote_transports">Transports</a>
</h3>
<p>
Remote libvirt supports a range of transports:
</p>
<dl>
<dt> tls </dt>
<dd><a href="http://en.wikipedia.org/wiki/Transport_Layer_Security" title="Transport Layer Security">TLS</a>
1.0 (SSL 3.1) authenticated and encrypted TCP/IP socket, usually
listening on a public port number. To use this you will need to
<a href="#Remote_certificates" title="Generating TLS certificates">generate client and
server certificates</a>.
The standard port is 16514.
</dd>
<dt> unix </dt>
<dd> Unix domain socket. Since this is only accessible on the
local machine, it is not encrypted, and uses Unix permissions or
SELinux for authentication.
The standard socket names are
<code>/var/run/libvirt/libvirt-sock</code> and
<code>/var/run/libvirt/libvirt-sock-ro</code> (the latter
for read-only connections).
</dd>
<dt> ssh </dt>
<dd> Transported over an ordinary
<a href="http://www.openssh.com/" title="OpenSSH homepage">ssh
(secure shell)</a> connection.
Requires <a href="http://netcat.sourceforge.net/">Netcat (nc)</a>
installed and libvirtd should be running
on the remote machine. You should use some sort of
ssh key management (eg.
<a href="http://mah.everybody.org/docs/ssh" title="Using ssh-agent with ssh">ssh-agent</a>)
otherwise programs which use
this transport will stop to ask for a password. </dd>
<dt> ext </dt>
<dd> Any external program which can make a connection to the
remote machine by means outside the scope of libvirt. </dd>
<dt> tcp </dt>
<dd> Unencrypted TCP/IP socket. Not recommended for production
use, this is normally disabled, but an administrator can enable
it for testing or use over a trusted network.
The standard port is 16509.
</dd>
</dl>
<p>
The default transport, if no other is specified, is <code>tls</code>.
</p>
<h3>
<a name="Remote_URI_reference" id="Remote_URI_reference">Remote URIs</a>
</h3>
<p>
See also: <a href="uri.html">documentation on ordinary ("local") URIs</a>.
</p>
<p>
Remote URIs have the general form ("[...]" meaning an optional part):
</p>
<p><code>driver</code>[<code>+transport</code>]<code>://</code>[<code>username@</code>][<code>hostname</code>][<code>:port</code>]<code>/</code>[<code>path</code>][<code>?extraparameters</code>]
</p>
<p>
Either the transport or the hostname must be given in order
to distinguish this from a local URI.
</p>
<p>
Some examples:
</p>
<ul>
<li><code>xen+ssh://rjones@towada/</code><br/> &#x2014; Connect to a
remote Xen hypervisor on host <code>towada</code> using ssh transport and ssh
username <code>rjones</code>.
</li>
<li><code>xen://towada/</code><br/> &#x2014; Connect to a
remote Xen hypervisor on host <code>towada</code> using TLS.
</li>
<li><code>xen://towada/?no_verify=1</code><br/> &#x2014; Connect to a
remote Xen hypervisor on host <code>towada</code> using TLS. Do not verify
the server's certificate.
</li>
<li><code>qemu+unix:///system?socket=/opt/libvirt/run/libvirt/libvirt-sock</code><br/> &#x2014;
Connect to the local qemu instances over a non-standard
Unix socket (the full path to the Unix socket is
supplied explicitly in this case).
</li>
<li><code>test+tcp://localhost:5000/default</code><br/> &#x2014;
Connect to a libvirtd daemon offering unencrypted TCP/IP connections
on localhost port 5000 and use the test driver with default
settings.
</li>
</ul>
<h4>
<a name="Remote_URI_parameters" id="Remote_URI_parameters">Extra parameters</a>
</h4>
<p>
Extra parameters can be added to remote URIs as part
of the query string (the part following <q><code>?</code></q>).
Remote URIs understand the extra parameters shown below.
Any others are passed unmodified through to the back end.
Note that parameter values must be
<a href="http://xmlsoft.org/html/libxml-uri.html#xmlURIEscapeStr">URI-escaped</a>.
</p>
<table class="top_table">
<tr>
<th> Name </th>
<th> Transports </th>
<th> Meaning </th>
</tr>
<tr>
<td>
<code>name</code>
</td>
<td>
<i>any transport</i>
</td>
<td>
The name passed to the remote virConnectOpen function. The
name is normally formed by removing transport, hostname, port
number, username and extra parameters from the remote URI, but in certain
very complex cases it may be better to supply the name explicitly.
</td>
</tr>
<tr>
<td colspan="2"/>
<td> Example: <code>name=qemu:///system</code> </td>
</tr>
<tr>
<td>
<code>command</code>
</td>
<td> ssh, ext </td>
<td>
The external command. For ext transport this is required.
For ssh the default is <code>ssh</code>.
The PATH is searched for the command.
</td>
</tr>
<tr>
<td colspan="2"/>
<td> Example: <code>command=/opt/openssh/bin/ssh</code> </td>
</tr>
<tr>
<td>
<code>socket</code>
</td>
<td> unix, ssh </td>
<td>
The path to the Unix domain socket, which overrides the
compiled-in default. For ssh transport, this is passed to
the remote netcat command (see next).
</td>
</tr>
<tr>
<td colspan="2"/>
<td> Example: <code>socket=/opt/libvirt/run/libvirt/libvirt-sock</code> </td>
</tr>
<tr>
<td>
<code>netcat</code>
</td>
<td> ssh </td>
<td>
The name of the netcat command on the remote machine.
The default is <code>nc</code>. For ssh transport, libvirt
constructs an ssh command which looks like:
<pre><i>command</i> -p <i>port</i> [-l <i>username</i>] <i>hostname</i> <i>netcat</i> -U <i>socket</i>
</pre>
where <i>port</i>, <i>username</i>, <i>hostname</i> can be
specified as part of the remote URI, and <i>command</i>, <i>netcat</i>
and <i>socket</i> come from extra parameters (or
sensible defaults).
</td>
</tr>
<tr>
<td colspan="2"/>
<td> Example: <code>netcat=/opt/netcat/bin/nc</code> </td>
</tr>
<tr>
<td>
<code>no_verify</code>
</td>
<td> tls </td>
<td>
If set to a non-zero value, this disables client checks of the
server's certificate. Note that to disable server checks of
the client's certificate or IP address you must
<a href="#Remote_libvirtd_configuration">change the libvirtd
configuration</a>.
</td>
</tr>
<tr>
<td colspan="2"/>
<td> Example: <code>no_verify=1</code> </td>
</tr>
<tr>
<td>
<code>no_tty</code>
</td>
<td> ssh </td>
<td>
If set to a non-zero value, this stops ssh from asking for
a password if it cannot log in to the remote machine automatically
(eg. using ssh-agent etc.). Use this when you don't have access
to a terminal - for example in graphical programs which use libvirt.
</td>
</tr>
<tr>
<td colspan="2"/>
<td> Example: <code>no_tty=1</code> </td>
</tr>
</table>
<h3>
<a name="Remote_certificates" id="Remote_certificates">Generating TLS certificates</a>
</h3>
<h4>
<a name="Remote_PKI" id="Remote_PKI">Public Key Infrastructure set up</a>
</h4>
<p>
If you are unsure how to create TLS certificates, skip to the
next section.
</p>
<table class="top_table">
<tr>
<th> Location </th>
<th> Machine </th>
<th> Description </th>
<th> Required fields </th>
</tr>
<tr>
<td>
<code>/etc/pki/CA/cacert.pem</code>
</td>
<td> Installed on all clients and servers </td>
<td> CA's certificate (<a href="#Remote_TLS_CA">more info</a>)</td>
<td> n/a </td>
</tr>
<tr>
<td>
<code>/etc/pki/libvirt/ private/serverkey.pem</code>
</td>
<td> Installed on the server </td>
<td> Server's private key (<a href="#Remote_TLS_server_certificates">more info</a>)</td>
<td> n/a </td>
</tr>
<tr>
<td>
<code>/etc/pki/libvirt/ servercert.pem</code>
</td>
<td> Installed on the server </td>
<td> Server's certificate signed by the CA.
(<a href="#Remote_TLS_server_certificates">more info</a>) </td>
<td> CommonName (CN) must be the hostname of the server as it
is seen by clients. </td>
</tr>
<tr>
<td>
<code>/etc/pki/libvirt/ private/clientkey.pem</code>
</td>
<td> Installed on the client </td>
<td> Client's private key. (<a href="#Remote_TLS_client_certificates">more info</a>) </td>
<td> n/a </td>
</tr>
<tr>
<td>
<code>/etc/pki/libvirt/ clientcert.pem</code>
</td>
<td> Installed on the client </td>
<td> Client's certificate signed by the CA
(<a href="#Remote_TLS_client_certificates">more info</a>) </td>
<td> Distinguished Name (DN) can be checked against an access
control list (<code>tls_allowed_dn_list</code>).
</td>
</tr>
</table>
<h4>
<a name="Remote_TLS_background" id="Remote_TLS_background">Background to TLS certificates</a>
</h4>
<p>
Libvirt supports TLS certificates for verifying the identity
of the server and clients. There are two distinct checks involved:
</p>
<ul>
<li> The client should know that it is connecting to the right
server. Checking done by client by matching the certificate that
the server sends to the server's hostname. May be disabled by adding
<code>?no_verify=1</code> to the
<a href="#Remote_URI_parameters">remote URI</a>.
</li>
<li> The server should know that only permitted clients are
connecting. This can be done based on client's IP address, or on
client's IP address and client's certificate. Checking done by the
server. May be enabled and disabled in the <a href="#Remote_libvirtd_configuration">libvirtd.conf file</a>.
</li>
</ul>
<p>
For full certificate checking you will need to have certificates
issued by a recognised <a href="http://en.wikipedia.org/wiki/Certificate_authority">Certificate
Authority (CA)</a> for your server(s) and all clients. To avoid the
expense of getting certificates from a commercial CA, you can set up
your own CA and tell your server(s) and clients to trust certificates
issues by your own CA. Follow the instructions in the next section.
</p>
<p>
Be aware that the <a href="#Remote_libvirtd_configuration">default
configuration for libvirtd</a> allows any client to connect provided
they have a valid certificate issued by the CA for their own IP
address. You may want to change this to make it less (or more)
permissive, depending on your needs.
</p>
<h4>
<a name="Remote_TLS_CA" id="Remote_TLS_CA">Setting up a Certificate Authority (CA)</a>
</h4>
<p>
You will need the <a href="http://www.gnu.org/software/gnutls/manual/html_node/Invoking-certtool.html">GnuTLS
certtool program documented here</a>. In Fedora, it is in the
<code>gnutls-utils</code> package.
</p>
<p>
Create a private key for your CA:
</p>
<pre>
certtool --generate-privkey &gt; cakey.pem
</pre>
<p>
and self-sign it by creating a file with the
signature details called
<code>ca.info</code> containing:
</p>
<pre>
cn = <i>Name of your organization</i>
ca
cert_signing_key
</pre>
<pre>
certtool --generate-self-signed --load-privkey cakey.pem \
--template ca.info --outfile cacert.pem
</pre>
<p>
(You can delete <code>ca.info</code> file now if you
want).
</p>
<p>
Now you have two files which matter:
</p>
<ul>
<li><code>cakey.pem</code> - Your CA's private key (keep this very secret!)
</li>
<li><code>cacert.pem</code> - Your CA's certificate (this is public).
</li>
</ul>
<p><code>cacert.pem</code> has to be installed on clients and
server(s) to let them know that they can trust certificates issued by
your CA.
</p>
<p>
The normal installation directory for <code>cacert.pem</code>
is <code>/etc/pki/CA/cacert.pem</code> on all clients and servers.
</p>
<p>
To see the contents of this file, do:
</p>
<pre><b>certtool -i --infile cacert.pem</b>
X.509 certificate info:
Version: 3
Serial Number (hex): 00
Subject: CN=Red Hat Emerging Technologies
Issuer: CN=Red Hat Emerging Technologies
Signature Algorithm: RSA-SHA
Validity:
Not Before: Mon Jun 18 16:22:18 2007
Not After: Tue Jun 17 16:22:18 2008
<i>[etc]</i>
</pre>
<p>
This is all that is required to set up your CA. Keep the CA's private
key carefully as you will need it when you come to issue certificates
for your clients and servers.
</p>
<h4>
<a name="Remote_TLS_server_certificates" id="Remote_TLS_server_certificates">Issuing server certificates</a>
</h4>
<p>
For each server (libvirtd) you need to issue a certificate
with the X.509 CommonName (CN) field set to the hostname
of the server. The CN must match the hostname which
clients will be using to connect to the server.
</p>
<p>
In the example below, clients will be connecting to the
server using a <a href="#Remote_URI_reference">URI</a> of
<code>xen://oirase/</code>, so the CN must be "<code>oirase</code>".
</p>
<p>
Make a private key for the server:
</p>
<pre>
certtool --generate-privkey &gt; serverkey.pem
</pre>
<p>
and sign that key with the CA's private key by first
creating a template file called <code>server.info</code>
(only the CN field matters, which as explained above must
be the server's hostname):
</p>
<pre>
organization = <i>Name of your organization</i>
cn = oirase
tls_www_server
encryption_key
signing_key
</pre>
<p>
and sign:
</p>
<pre>
certtool --generate-certificate --load-privkey serverkey.pem \
--load-ca-certificate cacert.pem --load-ca-privkey cakey.pem \
--template server.info --outfile servercert.pem
</pre>
<p>
This gives two files:
</p>
<ul>
<li><code>serverkey.pem</code> - The server's private key.
</li>
<li><code>servercert.pem</code> - The server's public key.
</li>
</ul>
<p>
We can examine this certificate and its signature:
</p>
<pre><b>certtool -i --infile servercert.pem</b>
X.509 certificate info:
Version: 3
Serial Number (hex): 00
Subject: O=Red Hat Emerging Technologies,CN=oirase
Issuer: CN=Red Hat Emerging Technologies
Signature Algorithm: RSA-SHA
Validity:
Not Before: Mon Jun 18 16:34:49 2007
Not After: Tue Jun 17 16:34:49 2008
</pre>
<p>
Note the "Issuer" CN is "Red Hat Emerging Technologies" (the CA) and
the "Subject" CN is "oirase" (the server).
</p>
<p>
Finally we have two files to install:
</p>
<ul>
<li><code>serverkey.pem</code> is
the server's private key which should be copied to the
server <i>only</i> as
<code>/etc/pki/libvirt/private/serverkey.pem</code>.
</li>
<li><code>servercert.pem</code> is the server's certificate
which can be installed on the server as
<code>/etc/pki/libvirt/servercert.pem</code>.
</li>
</ul>
<h4>
<a name="Remote_TLS_client_certificates" id="Remote_TLS_client_certificates">Issuing client certificates</a>
</h4>
<p>
For each client (ie. any program linked with libvirt, such as
<a href="http://virt-manager.et.redhat.com/">virt-manager</a>)
you need to issue a certificate with the X.509 Distinguished Name (DN)
set to a suitable name. You can decide this on a company / organisation
policy. For example, I use:
</p>
<pre>
C=GB,ST=London,L=London,O=Red Hat,CN=<i>name_of_client</i>
</pre>
<p>
The process is the same as for
<a href="#Remote_TLS_server_certificates">setting up the
server certificate</a> so here we just briefly cover the
steps.
</p>
<ol>
<li>
Make a private key:
<pre>
certtool --generate-privkey &gt; clientkey.pem
</pre>
</li>
<li>
Act as CA and sign the certificate. Create client.info containing:
<pre>
country = GB
state = London
locality = London
organization = Red Hat
cn = client1
tls_www_client
encryption_key
signing_key
</pre>
and sign by doing:
<pre>
certtool --generate-certificate --load-privkey clientkey.pem \
--load-ca-certificate cacert.pem --load-ca-privkey cakey.pem \
--template client.info --outfile clientcert.pem
</pre>
</li>
<li>
Install the certificates on the client machine:
<pre>
cp clientkey.pem /etc/pki/libvirt/private/clientkey.pem
cp clientcert.pem /etc/pki/libvirt/clientcert.pem
</pre>
</li>
</ol>
<h4>
<a name="Remote_TLS_troubleshooting" id="Remote_TLS_troubleshooting">Troubleshooting TLS certificate problems</a>
</h4>
<dl>
<dt> failed to verify client's certificate </dt>
<dd>
<p>
On the server side, run the libvirtd server with
the '--listen' and '--verbose' options while the
client is connecting. The verbose log messages should
tell you enough to diagnose the problem.
</p>
</dd>
</dl>
<p> You can use the <a href="pki_check.sh">pki_check.sh</a> shell script
to analyze the setup on the client or server machines, preferably as root.
It will try to point out the possible problems and provide solutions to
fix the set up up to a point where you have secure remote access.</p>
<h3>
<a name="Remote_libvirtd_configuration" id="Remote_libvirtd_configuration">libvirtd configuration file</a>
</h3>
<p>
Libvirtd (the remote daemon) is configured from a file called
<code>/etc/libvirt/libvirtd.conf</code>, or specified on
the command line using <code>-f filename</code> or
<code>--config filename</code>.
</p>
<p>
This file should contain lines of the form below.
Blank lines and comments beginning with <code>#</code> are ignored.
</p>
<pre>setting = value</pre>
<p>The following settings, values and default are:</p>
<table class="top_table">
<tr>
<th> Line </th>
<th> Default </th>
<th> Meaning </th>
</tr>
<tr>
<td> listen_tls <i>[0|1]</i> </td>
<td> 1 (on) </td>
<td>
Listen for secure TLS connections on the public TCP/IP port.
</td>
</tr>
<tr>
<td> listen_tcp <i>[0|1]</i> </td>
<td> 0 (off) </td>
<td>
Listen for unencrypted TCP connections on the public TCP/IP port.
</td>
</tr>
<tr>
<td> tls_port <i>"service"</i> </td>
<td> "16514" </td>
<td>
The port number or service name to listen on for secure TLS connections.
</td>
</tr>
<tr>
<td> tcp_port <i>"service"</i> </td>
<td> "16509" </td>
<td>
The port number or service name to listen on for unencrypted TCP connections.
</td>
</tr>
<tr>
<td> mdns_adv <i>[0|1]</i> </td>
<td> 1 (advertise with mDNS) </td>
<td>
If set to 1 then the virtualization service will be advertised over
mDNS to hosts on the local LAN segment.
</td>
</tr>
<tr>
<td> mdns_name <i>"name"</i> </td>
<td> "Virtualization Host HOSTNAME" </td>
<td>
The name to advertise for this host with Avahi mDNS. The default
includes the machine's short hostname. This must be unique to the
local LAN segment.
</td>
</tr>
<tr>
<td> unix_sock_group <i>"groupname"</i> </td>
<td> "root" </td>
<td>
The UNIX group to own the UNIX domain socket. If the socket permissions allow
group access, then applications running under matching group can access the
socket. Only valid if running as root
</td>
</tr>
<tr>
<td> unix_sock_ro_perms <i>"octal-perms"</i> </td>
<td> "0777" </td>
<td>
The permissions for the UNIX domain socket for read-only client connections.
The default allows any user to monitor domains.
</td>
</tr>
<tr>
<td> unix_sock_rw_perms <i>"octal-perms"</i> </td>
<td> "0700" </td>
<td>
The permissions for the UNIX domain socket for read-write client connections.
The default allows only root to manage domains.
</td>
</tr>
<tr>
<td> tls_no_verify_certificate <i>[0|1]</i> </td>
<td> 0 (certificates are verified) </td>
<td>
If set to 1 then if a client certificate check fails, it is not an error.
</td>
</tr>
<tr>
<td> tls_no_verify_address <i>[0|1]</i> </td>
<td> 0 (addresses are verified) </td>
<td>
If set to 1 then if a client IP address check fails, it is not an error.
</td>
</tr>
<tr>
<td> key_file <i>"filename"</i> </td>
<td> "/etc/pki/libvirt/ private/serverkey.pem" </td>
<td>
Change the path used to find the server's private key.
If you set this to an empty string, then no private key is loaded.
</td>
</tr>
<tr>
<td> cert_file <i>"filename"</i> </td>
<td> "/etc/pki/libvirt/ servercert.pem" </td>
<td>
Change the path used to find the server's certificate.
If you set this to an empty string, then no certificate is loaded.
</td>
</tr>
<tr>
<td> ca_file <i>"filename"</i> </td>
<td> "/etc/pki/CA/cacert.pem" </td>
<td>
Change the path used to find the trusted CA certificate.
If you set this to an empty string, then no trusted CA certificate is loaded.
</td>
</tr>
<tr>
<td> crl_file <i>"filename"</i> </td>
<td> (no CRL file is used) </td>
<td>
Change the path used to find the CA certificate revocation list (CRL) file.
If you set this to an empty string, then no CRL is loaded.
</td>
</tr>
<tr>
<td> tls_allowed_dn_list ["DN1", "DN2"] </td>
<td> (none - DNs are not checked) </td>
<td>
<p>
Enable an access control list of client certificate Distinguished
Names (DNs) which can connect to the TLS port on this server.
</p>
<p>
The default is that DNs are not checked.
</p>
<p>
This list may contain wildcards such as <code>"C=GB,ST=London,L=London,O=Red Hat,CN=*"</code>
See the POSIX <code>fnmatch</code> function for the format
of the wildcards.
</p>
<p>
Note that if this is an empty list, <i>no client can connect</i>.
</p>
<p>
Note also that GnuTLS returns DNs without spaces
after commas between the fields (and this is what we check against),
but the <code>openssl x509</code> tool shows spaces.
</p>
</td>
</tr>
<tr>
<td> tls_allowed_ip_list ["ip1", "ip2", "ip3"] </td>
<td> (none - clients can connect from anywhere) </td>
<td>
<p>
Enable an access control list of the IP addresses of clients
who can connect to the TLS or TCP ports on this server.
</p>
<p>
The default is that clients can connect from any IP address.
</p>
<p>
This list may contain wildcards such as <code>192.168.*</code>
See the POSIX <code>fnmatch</code> function for the format
of the wildcards.
</p>
<p>
Note that if this is an empty list, <i>no client can connect</i>.
</p>
</td>
</tr>
</table>
<h3>
<a name="Remote_IPv6" id="Remote_IPv6">IPv6 support</a>
</h3>
<p>
The libvirtd service and libvirt remote client driver both use the
<code>getaddrinfo()</code> functions for name resolution and are
thus fully IPv6 enabled. ie, if a server has IPv6 address configured
the daemon will listen for incoming connections on both IPv4 and IPv6
protocols. If a client has an IPv6 address configured and the DNS
address resolved for a service is reachable over IPv6, then an IPv6
connection will be made, otherwise IPv4 will be used. In summary it
should just 'do the right thing(tm)'.
</p>
<h3>
<a name="Remote_limitations" id="Remote_limitations">Limitations</a>
</h3>
<ul>
<li> Remote storage: To be fully useful, particularly for
creating new domains, it should be possible to enumerate
and provision storage on the remote machine. This is currently
in the design phase. </li>
<li> Migration: We expect libvirt will support migration,
and obviously remote support is what makes migration worthwhile.
This is also in the design phase. Issues <a href="https://www.redhat.com/mailman/listinfo/libvir-list" title="libvir-list mailing list">to discuss</a> include
which path the migration data should follow (eg. client to
client direct, or client to server to client) and security.
</li>
<li> Fine-grained authentication: libvirt in general,
but in particular the remote case should support more
fine-grained authentication for operations, rather than
just read-write/read-only as at present.
</li>
</ul>
<p>
Please come and discuss these issues and more on <a href="https://www.redhat.com/mailman/listinfo/libvir-list" title="libvir-list mailing list">the mailing list</a>.
</p>
<h3>
<a name="Remote_implementation_notes" id="Remote_implementation_notes">Implementation notes</a>
</h3>
<p>
The current implementation uses <a href="http://en.wikipedia.org/wiki/External_Data_Representation" title="External Data Representation">XDR</a>-encoded packets with a
simple remote procedure call implementation which also supports
asynchronous messaging and asynchronous and out-of-order replies,
although these latter features are not used at the moment.
</p>
<p>
The implementation should be considered <b>strictly internal</b> to
libvirt and <b>subject to change at any time without notice</b>. If
you wish to talk to libvirtd, link to libvirt. If there is a problem
that means you think you need to use the protocol directly, please
first discuss this on <a href="https://www.redhat.com/mailman/listinfo/libvir-list" title="libvir-list mailing list">the mailing list</a>.
</p>
<p>
The messaging protocol is described in
<code>qemud/remote_protocol.x</code>.
</p>
<p>
Authentication and encryption (for TLS) is done using <a href="http://www.gnu.org/software/gnutls/" title="GnuTLS project&#10;page">GnuTLS</a> and the RPC protocol is unaware of this layer.
</p>
<p>
Protocol messages are sent using a simple 32 bit length word (encoded
XDR int) followed by the message header (XDR
<code>remote_message_header</code>) followed by the message body. The
length count includes the length word itself, and is measured in
bytes. Maximum message size is <code>REMOTE_MESSAGE_MAX</code> and to
avoid denial of services attacks on the XDR decoders strings are
individually limited to <code>REMOTE_STRING_MAX</code> bytes. In the
TLS case, messages may be split over TLS records, but a TLS record
cannot contain parts of more than one message. In the common RPC case
a single <code>REMOTE_CALL</code> message is sent from client to
server, and the server then replies synchronously with a single
<code>REMOTE_REPLY</code> message, but other forms of messaging are
also possible.
</p>
<p>
The protocol contains support for multiple program types and protocol
versioning, modelled after SunRPC.
</p>
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<div class="box">
<h2 class="box_title">API menu</h2>
</div>
<p><a href="{$href_base}index.html">Main menu</a></p>
<p><a href="{$href_base}/html/index.html">API menu</a></p>
<p><a href="{$href_base}ChangeLog.html">ChangeLog</a></p>
<div class="box">
<h2 class="box_title">related links</h2>
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<p><a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></p>
<p> <a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></p>
<p> <a href="http://virt-manager.et.redhat.com/">virt-manager</a></p>
<p> <a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></p>
<p> <a href="http://libvirt.org/ocaml/">OCaml bindings</a></p>
<p> <a href="http://libvirt.org/ruby/">Ruby bindings</a></p>
<p><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></p>
<a href="http://xmlsoft.org/"><img src="{$href_base}Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo"/></a>
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<li><a href="{$href_base}index.html">Main menu</a></li>
<li><a href="{$href_base}/html/index.html">API menu</a></li>
<li><a href="{$href_base}ChangeLog.html">ChangeLog</a></li>
</ul>
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<li> <a href="https://www.redhat.com/archives/libvir-list/">Mail archive</a></li>
<li> <a href="https://bugzilla.redhat.com/bugzilla/buglist.cgi?product=Fedora+Core&amp;component=libvirt&amp;bug_status=NEW&amp;bug_status=ASSIGNED&amp;bug_status=REOPENED&amp;bug_status=MODIFIED&amp;short_desc_type=allwordssubstr&amp;short_desc=&amp;long_desc_type=allwordssubstr">Open bugs</a></li>
<li> <a href="http://virt-manager.et.redhat.com/">virt-manager</a></li>
<li> <a href="http://search.cpan.org/~danberr/Sys-Virt-0.1.0/">Perl bindings</a></li>
<li> <a href="http://libvirt.org/ocaml/">OCaml bindings</a></li>
<li> <a href="http://libvirt.org/ruby/">Ruby bindings</a></li>
<li><a href="http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html">Xen project</a></li>
<li><form action="{$href_base}search.php" enctype="application/x-www-form-urlencoded" method="get">
<input name="query" type="text" size="12" value="Search..." /><input name="submit" type="submit" value="Go" />
</form></li>
<li><a href="http://xmlsoft.org/"> <img src="Libxml2-Logo-90x34.gif" alt="Made with Libxml2 Logo" /></a></li>
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the menu box for developer's pages
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the page title
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<link rel="stylesheet" type="text/css" href="{$href_base}libvirt.css" />
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<head>
<xsl:call-template name="style"/>
<xsl:element name="title">
<xsl:value-of select="$title"/>
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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
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This file is autogenerated from sitemap.html.in
Do not edit this file. Changes will be lost.
-->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<link rel="stylesheet" type="text/css" href="main.css" />
<link rel="SHORTCUT ICON" href="32favicon.png" />
<title>libvirt: Sitemap</title>
<meta name="description" content="libvirt, virtualization, virtualization API" />
</head>
<body>
<div id="header">
<div id="headerLogo"></div>
<div id="headerSearch">
<form action="search.php" enctype="application/x-www-form-urlencoded" method="get">
<input id="query" name="query" type="text" size="12" value="" />
<input id="submit" name="submit" type="submit" value="Search" />
</form>
</div>
</div>
<div id="body">
<div id="content">
<h1>Sitemap</h1>
<div id="sitemap">
<ul><li>
<a href="index.html">Home</a>
<span>Front page of the libvirt website</span>
</li><li>
<a href="news.html">News</a>
<span>Details of new features and bugs fixed in each release</span>
<ul><li>
<a href="ChangeLog.html">Changelog</a>
<span>Latest commit messages from the source repository </span>
</li></ul></li><li>
<a href="downloads.html">Downloads</a>
<span>Get the latest source releases, binary builds and get access to the source repository</span>
</li><li>
<a href="docs.html">Documentation</a>
<span>Information for users, administrators and developers</span>
<ul><li>
<a href="deployment.html">Deployment</a>
<span>Information about deploying and using libvirt</span>
<ul><li>
<a href="uri.html">URI format</a>
<span>The URI formats used for connecting to libvirt</span>
</li><li>
<a href="remote.html">Remote access</a>
<span>Enable remote access over TCP</span>
</li><li>
<a href="auth.html">Authentication</a>
<span>Configure authentication for the libvirt daemon</span>
</li><li>
<a href="windows.html">Windows port</a>
<span>Access the libvirt daemon from a native Windows client</span>
</li></ul></li><li>
<a href="intro.html">Architecture</a>
<span>Overview of the logical subsystems in the libvirt API</span>
<ul><li>
<a href="archdomain.html">Domains</a>
<span>Managing virtual machines</span>
</li><li>
<a href="archnetwork.html">Network</a>
<span>Providing isolated networks and NAT based network connectivity</span>
</li><li>
<a href="archstorage.html">Storage</a>
<span>Managing storage pools and volumes</span>
</li><li>
<a href="archnode.html">Node Devices</a>
<span>Enumerating host node devices</span>
</li></ul></li><li>
<a href="format.html">XML format</a>
<span>Description of the XML formats used in libvirt</span>
<ul><li>
<a href="formatdomain.html">Domains</a>
<span>The domain XML format</span>
</li><li>
<a href="formatnetwork.html">Networks</a>
<span>The virtual network XML format</span>
</li><li>
<a href="formatstorage.html">Storage</a>
<span>The storage pool and volume XML format</span>
</li><li>
<a href="formatcaps.html">Capabilities</a>
<span>The driver capabilities XML format</span>
</li><li>
<a href="formatnode.html">Node Devices</a>
<span>The host device XML format</span>
</li></ul></li><li>
<a href="drivers.html">Drivers</a>
<span>Hypervisor specific driver information</span>
<ul><li>
<a href="drvxen.html">Xen</a>
<span>Driver the Xen hypervisor</span>
</li><li>
<a href="drvqemu.html">QEMU / KVM</a>
<span>Driver for QEMU, KQEMU, KVM and Xenner</span>
</li><li>
<a href="drvlxc.html">Linux Container</a>
<span>Driver for the Linux native container API</span>
</li><li>
<a href="drvtest.html">Test</a>
<span>Psuedo-driver simulating APIs in memory for test suites</span>
</li><li>
<a href="drvremote.html">Remote</a>
<span>Driver providing secure remote to the libvirt APIs</span>
</li><li>
<a href="drvopenvz.html">OpenVZ</a>
<span>Driver for the OpenVZ container technology</span>
</li><li>
<a href="storage.html">Storage</a>
<span>Driver for the storage management APIs</span>
</li></ul></li><li>
<a href="html/index.html">API reference</a>
<span>Reference manual for the C public API</span>
<!-- This is the desired new style API breakdown
<ul>
<li>
<a href="apiconn.html">Connection</a>
<span>API reference for virConnectPtr objects</span>
</li>
<li>
<a href="apidomain.html">Domain</a>
<span>API reference for virDomainPtr objects</span>
</li>
<li>
<a href="apierror.html">Error</a>
<span>API reference for virErrorPtr objects</span>
</li>
<li>
<a href="apinetwork.html">Network</a>
<span>API reference for virNetworkPtr objects</span>
</li>
<li>
<a href="apistorage.html">Storage</a>
<span>API reference for virStoragePoolptr and virStorageVolPtr objects</span>
</li>
<li>
<a href="apinode.html">Node Device</a>
<span>API reference for virNodeDevicePtr objects</span>
</li>
</ul>
-->
<ul><li>
<a href="html/libvirt-libvirt.html">libvirt</a>
<span>core interfaces for the libvirt library</span>
</li><li>
<a href="html/libvirt-virterror.html">virterror</a>
<span>error handling interfaces for the libvirt library</span>
</li><li>
<a href="hvsupport.html">Driver support</a>
<span>matrix of API support per hypervisor per release</span>
</li></ul></li><li>
<a href="bindings.html">Language bindings</a>
<span>Bindings of the libvirt API for other languages</span>
<ul><li>
<a href="python.html">Python</a>
<span>overview of the python API bindings</span>
</li></ul></li></ul></li><li>
<a href="http://wiki.libvirt.org">Wiki</a>
<span>User contributed content</span>
</li><li>
<a href="FAQ.html">FAQ</a>
<span>Frequently asked questions</span>
</li><li>
<a href="bugs.html">Bug reports</a>
<span>How and where to report bugs and request features</span>
</li><li>
<a href="contact.html">Contact</a>
<span>How to contact the developers via email and IRC</span>
</li><li>
<a href="relatedlinks.html">Related Links</a>
<span>Miscellaneous links of interest related to libvirt</span>
<ul><li>
<a href="apps.html">Applications</a>
<span>Overview of applications using the libvirt APIs</span>
</li></ul></li><li>
<a href="sitemap.html">Sitemap</a>
<span>Overview of all content on the website</span>
</li></ul></div>
</div>
<div id="menu">
<ul class="l0"><li>
<a title="Front page of the libvirt website" class="inactive" href="index.html">Home</a>
</li><li>
<a title="Details of new features and bugs fixed in each release" class="inactive" href="news.html">News</a>
</li><li>
<a title="Get the latest source releases, binary builds and get access to the source repository" class="inactive" href="downloads.html">Downloads</a>
</li><li>
<a title="Information for users, administrators and developers" class="inactive" href="docs.html">Documentation</a>
</li><li>
<a title="User contributed content" class="inactive" href="http://wiki.libvirt.org">Wiki</a>
</li><li>
<a title="Frequently asked questions" class="inactive" href="FAQ.html">FAQ</a>
</li><li>
<a title="How and where to report bugs and request features" class="inactive" href="bugs.html">Bug reports</a>
</li><li>
<a title="How to contact the developers via email and IRC" class="inactive" href="contact.html">Contact</a>
</li><li>
<a title="Miscellaneous links of interest related to libvirt" class="inactive" href="relatedlinks.html">Related Links</a>
</li><li>
<span class="active">Sitemap</span>
</li></ul>
</div>
</div>
<div id="footer">
<div id="projects">
<dl id="p1"><dt>
<a href="http://augeas.net/">Augeas</a>
</dt><dd>
<span>A configuration editing tool and API</span>
</dd><dt>
<a href="http://libvirt.org/">libvirt</a>
</dt><dd>
<span>The open source virtualization API</span>
</dd></dl>
<dl id="p2"><dt>
<a href="http://cobbler.et.redhat.com/">Cobbler</a>
</dt><dd>
<span>OS provisioning and profile management</span>
</dd><dt>
<a href="http://ovirt.org/">oVirt</a>
</dt><dd>
<span>Virtualization management across the data center</span>
</dd></dl>
<dl id="p3"><dt>
<a href="http://freeipa.org/">FreeIPA</a>
</dt><dd>
<span>Identity, policy and audit management</span>
</dd><dt>
<a href="http://virt-manager.org/">Virtual Machine Manager</a>
</dt><dd>
<span>Virtualization management from the desktop</span>
</dd></dl>
</div>
</div>
</body>
</html>

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<html>
<body>
<h1>Sitemap</h1>
<div id="sitemap">
<ul>
<li>
<a href="index.html">Home</a>
<span>Front page of the libvirt website</span>
</li>
<li>
<a href="news.html">News</a>
<span>Details of new features and bugs fixed in each release</span>
<ul>
<li>
<a href="ChangeLog.html">Changelog</a>
<span>Latest commit messages from the source repository </span>
</li>
</ul>
</li>
<li>
<a href="downloads.html">Downloads</a>
<span>Get the latest source releases, binary builds and get access to the source repository</span>
</li>
<li>
<a href="docs.html">Documentation</a>
<span>Information for users, administrators and developers</span>
<ul>
<li>
<a href="deployment.html">Deployment</a>
<span>Information about deploying and using libvirt</span>
<ul>
<li>
<a href="uri.html">URI format</a>
<span>The URI formats used for connecting to libvirt</span>
</li>
<li>
<a href="remote.html">Remote access</a>
<span>Enable remote access over TCP</span>
</li>
<li>
<a href="auth.html">Authentication</a>
<span>Configure authentication for the libvirt daemon</span>
</li>
<li>
<a href="windows.html">Windows port</a>
<span>Access the libvirt daemon from a native Windows client</span>
</li>
</ul>
</li>
<li>
<a href="intro.html">Architecture</a>
<span>Overview of the logical subsystems in the libvirt API</span>
<ul>
<li>
<a href="archdomain.html">Domains</a>
<span>Managing virtual machines</span>
</li>
<li>
<a href="archnetwork.html">Network</a>
<span>Providing isolated networks and NAT based network connectivity</span>
</li>
<li>
<a href="archstorage.html">Storage</a>
<span>Managing storage pools and volumes</span>
</li>
<li>
<a href="archnode.html">Node Devices</a>
<span>Enumerating host node devices</span>
</li>
</ul>
</li>
<li>
<a href="format.html">XML format</a>
<span>Description of the XML formats used in libvirt</span>
<ul>
<li>
<a href="formatdomain.html">Domains</a>
<span>The domain XML format</span>
</li>
<li>
<a href="formatnetwork.html">Networks</a>
<span>The virtual network XML format</span>
</li>
<li>
<a href="formatstorage.html">Storage</a>
<span>The storage pool and volume XML format</span>
</li>
<li>
<a href="formatcaps.html">Capabilities</a>
<span>The driver capabilities XML format</span>
</li>
<li>
<a href="formatnode.html">Node Devices</a>
<span>The host device XML format</span>
</li>
</ul>
</li>
<li>
<a href="drivers.html">Drivers</a>
<span>Hypervisor specific driver information</span>
<ul>
<li>
<a href="drvxen.html">Xen</a>
<span>Driver the Xen hypervisor</span>
</li>
<li>
<a href="drvqemu.html">QEMU / KVM</a>
<span>Driver for QEMU, KQEMU, KVM and Xenner</span>
</li>
<li>
<a href="drvlxc.html">Linux Container</a>
<span>Driver for the Linux native container API</span>
</li>
<li>
<a href="drvtest.html">Test</a>
<span>Psuedo-driver simulating APIs in memory for test suites</span>
</li>
<li>
<a href="drvremote.html">Remote</a>
<span>Driver providing secure remote to the libvirt APIs</span>
</li>
<li>
<a href="drvopenvz.html">OpenVZ</a>
<span>Driver for the OpenVZ container technology</span>
</li>
<li>
<a href="storage.html">Storage</a>
<span>Driver for the storage management APIs</span>
</li>
</ul>
</li>
<li>
<a href="html/index.html">API reference</a>
<span>Reference manual for the C public API</span>
<!-- This is the desired new style API breakdown
<ul>
<li>
<a href="apiconn.html">Connection</a>
<span>API reference for virConnectPtr objects</span>
</li>
<li>
<a href="apidomain.html">Domain</a>
<span>API reference for virDomainPtr objects</span>
</li>
<li>
<a href="apierror.html">Error</a>
<span>API reference for virErrorPtr objects</span>
</li>
<li>
<a href="apinetwork.html">Network</a>
<span>API reference for virNetworkPtr objects</span>
</li>
<li>
<a href="apistorage.html">Storage</a>
<span>API reference for virStoragePoolptr and virStorageVolPtr objects</span>
</li>
<li>
<a href="apinode.html">Node Device</a>
<span>API reference for virNodeDevicePtr objects</span>
</li>
</ul>
-->
<ul>
<li>
<a href="html/libvirt-libvirt.html">libvirt</a>
<span>core interfaces for the libvirt library</span>
</li>
<li>
<a href="html/libvirt-virterror.html">virterror</a>
<span>error handling interfaces for the libvirt library</span>
</li>
<li>
<a href="hvsupport.html">Driver support</a>
<span>matrix of API support per hypervisor per release</span>
</li>
</ul>
</li>
<li>
<a href="bindings.html">Language bindings</a>
<span>Bindings of the libvirt API for other languages</span>
<ul>
<li>
<a href="python.html">Python</a>
<span>overview of the python API bindings</span>
</li>
</ul>
</li>
</ul>
</li>
<li>
<a href="http://wiki.libvirt.org">Wiki</a>
<span>User contributed content</span>
</li>
<li>
<a href="FAQ.html">FAQ</a>
<span>Frequently asked questions</span>
</li>
<li>
<a href="bugs.html">Bug reports</a>
<span>How and where to report bugs and request features</span>
</li>
<li>
<a href="contact.html">Contact</a>
<span>How to contact the developers via email and IRC</span>
</li>
<li>
<a href="relatedlinks.html">Related Links</a>
<span>Miscellaneous links of interest related to libvirt</span>
<ul>
<li>
<a href="apps.html">Applications</a>
<span>Overview of applications using the libvirt APIs</span>
</li>
</ul>
</li>
<li>
<a href="sitemap.html">Sitemap</a>
<span>Overview of all content on the website</span>
</li>
</ul>
</div>
</body>
</html>

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