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Laine Stump c329db7180 qemu: make PCI multifunction support more manual 
When support for was added for PCI multifunction cards (in commit
9f8baf, first included in libvirt 0.9.3), it was done by always
turning on the multifunction bit for all PCI devices. Since that time
it has been realized that this is not an ideal solution, and that the
multifunction bit must be selectively turned on. For example, see

  https://bugzilla.redhat.com/show_bug.cgi?id=728174

and the discussion before and after

  https://www.redhat.com/archives/libvir-list/2011-September/msg01036.html

This patch modifies multifunction support so that the multifunction=on
option is only added to the qemu commandline for a device if its PCI
<address> definition has the attribute "multifunction='on'", e.g.:

  <address type='pci' domain='0x0000' bus='0x00'
           slot='0x04' function='0x0' multifunction='on'/>

In practice, the multifunction bit should only be turned on if
function='0' AND other functions will be used in the same slot - it
usually isn't needed for functions 1-7 (although there are apparently
some exceptions, e.g. the Intel X53 according to the QEMU source
code), and should never be set if only function 0 will be used in the
slot. The test cases have been changed accordingly to illustrate.

With this patch in place, if a user attempts to assign multiple
functions in a slot without setting the multifunction bit for function
0, libvirt will issue an error when the domain is defined, and the
define operation will fail. In the future, we may decide to detect
this situation and automatically add multifunction=on to avoid the
error; even then it will still be useful to have a manual method of
turning on multifunction since, as stated above, there are some
devices that excpect it to be turned on for all functions in a slot.

A side effect of this patch is that attempts to use the same PCI
address for two different devices will now log an error (previously
this would cause the domain define operation to fail, but there would
be no log message generated). Because the function doing this log was
almost completely rewritten, I didn't think it worthwhile to make a
separate patch for that fix (the entire patch would immediately be
obsoleted).
 		2011-10-01 11:48:28 -04:00
..
api_extension maint: rename virBufferVSprintf to virBufferAsprintf 2011-05-05 13:47:40 -06:00
devhelp build: Fix API docs generation in VPATH build 2011-02-21 14:46:23 +01:00
html Remove all generated docs from source control 2009-09-21 14:41:47 +01:00
internals Add some docs about the RPC protocol and APIs 2011-08-12 13:54:10 +01:00
schemas qemu: make PCI multifunction support more manual 2011-10-01 11:48:28 -04:00
.gitignore Add automatic generation of a todo item page 2010-10-12 11:26:52 +01:00
32favicon.png * docs/site.xsl docs/*.png docs/*.html: update the images from Diana, 2006-01-23 22:55:41 +00:00
Makefile.am Remove two references to files not generated 2011-09-14 22:57:46 +08:00
api.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
api_extension.html.in build: use shorter file names for 'make dist' 2010-10-27 16:29:25 -06:00
apibuild.py qemu_api: Modify apibuild.py to generate docs for QEMU APIs 2011-09-14 11:36:10 +08:00
apps.html.in docs: mention EMOTIVE as a libvirt-using app 2011-07-14 15:34:37 -06:00
archdomain.html.in Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
architecture.fig * docs/architecture.* docs/*: added a section on the architecture 2005-12-21 16:59:34 +00:00
architecture.gif * docs/architecture.* docs/*: added a section on the architecture 2005-12-21 16:59:34 +00:00
architecture.html.in docs: added a table of contents to the first 11 docs files 2010-10-27 15:01:45 +11:00
archnetwork.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
archnode.html.in Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
archstorage.html.in Cleanup whitespace in docs 2009-11-06 16:05:18 +01:00
auth.html.in docs: added a table of contents to the first 11 docs files 2010-10-27 15:01:45 +11:00
bindings.html.in docs: Add information about libvirt-php new location 2011-02-09 12:29:29 -07:00
bugs.html.in Augment bug reporting documentation 2010-11-10 13:16:37 +01:00
compiling.html.in docs: added compiling page and significantly expanded windows page 2010-12-21 20:55:10 +11:00
contact.html.in docs: added libvirt-announce to contact page 2011-01-05 18:07:30 +11:00
csharp.html.in docs: updated c# bindings with arnauds latest changes 2010-11-30 02:22:38 +11:00
deployment.html.in docs: added a table of contents to the first 11 docs files 2010-10-27 15:01:45 +11:00
devguide.html.in docs: added a table of contents to the first 11 docs files 2010-10-27 15:01:45 +11:00
docs.html.in Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
downloads.html.in docs: added compiling page and significantly expanded windows page 2010-12-21 20:55:10 +11:00
drivers.html.in hyperv: Add basic documentation 2011-08-26 17:52:55 +02:00
drvesx.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvhyperv.html.in hyperv: Add basic documentation 2011-08-26 17:52:55 +02:00
drvlxc.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvopenvz.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvqemu.html.in maint: fix spelling errors on lose 2011-08-26 16:48:24 -06:00
drvremote.html.in Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
drvtest.html.in Whitespace cleanup for pre-tags on the website 2009-11-16 22:42:13 +01:00
drvuml.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvvbox.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvvmware.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
drvxen.html.in website: Point main page links to libvirt driver pages 2011-07-15 13:19:41 -06:00
errors.html.in Fix a number of small typos 2009-09-22 12:55:39 +02:00
et.png * docs/Makefile.am docs/et.png docs/libvirt.css docs/page.xsl 2008-04-28 08:29:35 +00:00
firewall.html.in html docs: added firewall explanation page by daniel berrange 2010-07-10 22:47:00 +10:00
footer_corner.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
footer_pattern.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
format.html.in Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
formatcaps.html.in Introduce per-device boot element 2011-01-17 17:08:13 +01:00
formatdomain.html.in qemu: make PCI multifunction support more manual 2011-10-01 11:48:28 -04:00
formatnetwork.html.in docs: use IPv6 addresses in range reserved for documentation 2011-08-11 00:21:33 -04:00
formatnode.html.in docs: document node device XML 2011-09-28 09:40:10 -06:00
formatnwfilter.html.in nwfilter: enable filtering of gratuitous ARP packets 2011-05-23 19:41:18 -04:00
formatsecret.html.in Cleanup whitespace in docs 2009-11-06 16:05:18 +01:00
formatsnapshot.html.in snapshot: also support disks by path 2011-09-05 07:03:04 -06:00
formatstorage.html.in Fix broken XML entity for '>' 2010-11-25 10:40:07 +01:00
formatstorageencryption.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
generic.css Fix missing background color 2009-12-03 15:27:24 +01:00
goals.html.in Update on the goal page 2011-03-28 10:40:24 +08:00
hacking.html.in build: rename files.h to virfile.h 2011-07-21 10:34:51 -06:00
hacking1.xsl Generate HACKING from docs/hacking.html.in 2010-11-12 19:47:20 +01:00
hacking2.xsl Generate HACKING from docs/hacking.html.in 2010-11-12 19:47:20 +01:00
hooks.html.in Fix several formatting mistakes in doc 2011-03-31 14:36:19 -06:00
hvsupport.pl docs: Make hvsupport.pl pick up the host device drivers 2011-06-06 10:45:59 +02:00
index.html.in hyperv: Add basic documentation 2011-08-26 17:52:55 +02:00
index.py maint: Expand tabs in python code 2011-02-18 08:59:51 +01:00
internals.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
intro.html.in * docs/*: start cleanup/revamp of architecture docs 2009-04-02 12:01:11 +00:00
java.html.in Fix a number of small typos 2009-09-22 12:55:39 +02:00
library.xen remove all trailing blank lines 2009-07-16 15:06:42 +02:00
libvirt-daemon-arch.fig Api documentation 2009-04-15 20:42:50 +00:00
libvirt-daemon-arch.png Api documentation 2009-04-15 20:42:50 +00:00
libvirt-driver-arch.fig Api documentation 2009-04-15 20:42:50 +00:00
libvirt-driver-arch.png Api documentation 2009-04-15 20:42:50 +00:00
libvirt-header-bg.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
libvirt-header-logo.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
libvirt-net-logical.fig Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
libvirt-net-logical.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
libvirt-net-physical.fig Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
libvirt-net-physical.png Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
libvirt-object-model.fig Api documentation 2009-04-15 20:42:50 +00:00
libvirt-object-model.png Api documentation 2009-04-15 20:42:50 +00:00
libvirt.css Align table cells on top 2011-08-11 13:42:22 -06:00
libvirtLogo.png * //* : renamed the project libvirt , this affects all makefiles, 2006-02-09 17:45:11 +00:00
locking.html.in Add documentation for configuration lock managers 2011-06-28 18:19:00 +01:00
logging.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
madeWith.png * //* : renamed the project libvirt , this affects all makefiles, 2006-02-09 17:45:11 +00:00
main.css Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
newapi.xsl Improve tokenizing of linkable terms 2011-08-12 07:35:19 -06:00
news.html.in Release of libvirt-0.9.6 2011-09-22 14:53:23 +08:00
news.xsl Convert NEWS to UTF-8 2009-07-29 09:04:21 +01:00
node.fig * doc/*: augment and try to complete the doc in its current state 2006-01-23 13:24:07 +00:00
node.gif * doc/*: augment and try to complete the doc in its current state 2006-01-23 13:24:07 +00:00
page.xsl docs: replace CRLF with LF 2011-01-28 08:44:05 -07:00
php.html.in docs: Add information about libvirt-php new location 2011-02-09 12:29:29 -07:00
python.html.in Split website out into one file per page. APply new layout and styling 2008-04-23 17:08:31 +00:00
relatedlinks.html.in Cleanup whitespace in docs 2009-11-06 16:05:18 +01:00
remote.html.in Add some docs about the RPC protocol and APIs 2011-08-12 13:54:10 +01:00
search.php A couple of fixes for the search PHP code 2011-01-17 16:55:41 +08:00
site.xsl Change generated HTML to UTF-8 encoding 2009-12-08 16:09:33 +01:00
sitemap.html.in hyperv: Add basic documentation 2011-08-26 17:52:55 +02:00
storage.html.in docs: fix the xml validity errors regarding name and id 2010-09-17 00:41:08 +10:00
structures.fig * Makefile.am README TODO autogen.sh configure.in libvir.pc.in 2005-12-05 11:16:07 +00:00
subsite.xsl virCommand: docs for usage of new command APIs 2010-12-02 16:00:47 -07:00
testapi.html.in Add documentation about test suites 2011-05-11 19:18:38 +08:00
testsuites.html.in docs: avoid double 'the' 2011-05-11 08:18:04 -06:00
testtck.html.in Add documentation about test suites 2011-05-11 19:18:38 +08:00
todo.cfg-example Add automatic generation of a todo item page 2010-10-12 11:26:52 +01:00
todo.pl Skip bugs which are CLOSED in todo list 2011-07-12 17:10:33 +01:00
uri.html.in xen-proxy: Remove it entirely and use libvirtd instead 2010-11-08 22:00:35 +01:00
virshcmdref.html.in docs: updated memtune info again in virsh command reference 2011-01-11 07:33:15 +11:00
windows.html.in docs: correct invalid xml 2011-04-01 16:03:11 -06:00
wrapstring.xsl Generate HACKING from docs/hacking.html.in 2010-11-12 19:47:20 +01:00