Commit Graph

12904 Commits

Author SHA1 Message Date
Ján Tomko 9d6e56dbce qemu: auto-add bridges and allow using them
Add a "dry run" address allocation to figure out how many bridges
will be needed for all the devices without explicit addresses.

Auto-add just enough bridges to put all the devices on, or up to the
bridge with the largest specified index.
2013-04-25 13:19:40 +02:00
Ján Tomko b33eb0dca1 qemu: auto-add pci-root controller for pc machine types
<controller type='pci' index='0' model='pci-root'/>
is auto-added to pc* machine types.
Without this controller PCI bus 0 is not available and
no PCI addresses are assigned by default.

Since older libvirt supported PCI bus 0 even without
this controller, it is removed from the XML when migrating.
2013-04-25 13:05:10 +02:00
liguang d350a34caf qemu: build command line for pci-bridge device
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2013-04-25 12:54:59 +02:00
Ján Tomko df0ebf6b38 conf: add PCI controllers
Add new controller type 'pci' with models 'pci-root' and 'pci-bridge'.
2013-04-25 12:54:38 +02:00
Ján Tomko 024e9af3e5 qemu: call post-parse callbacks when parsing command line too
Now we set the default disk driver name when parsing
the qemu command line too, hence all the test changes.

Assume format type is 'auto' when none is specified on
qemu command line.
2013-04-25 12:10:22 +02:00
Osier Yang 48f43940e9 qemu: Fix the indention
Pushed under trivial rule.
2013-04-25 17:13:33 +08:00
Li Zhang dfd0e4f7f2 qemu: Add command line builder and parser for NVRAM.
This patch is to add command line builder and parser
for NVRAM device, and add test cases.

Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com>
2013-04-25 16:50:45 +08:00
Li Zhang bf1888738b Add NVRAM device
For pSeries guest in QEMU, NVRAM is one kind of spapr-vio device.
Users are allowed to specify spapr-vio devices'address.
But NVRAM is not supported in libvirt. So this patch is to
add NVRAM device to allow users to specify its address.

In QEMU, NVRAM device's address is specified by
 "-global spapr-nvram.reg=xxxxx".

In libvirt, XML file is defined as the following:

  <nvram>
    <address type='spapr-vio' reg='0x3000'/>
  </nvram>

Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com>
2013-04-25 16:50:11 +08:00
Michal Privoznik 19c345f2fe qemuBuildCommandLine: Don't overwrite errors with NWFilter's one
Currently, if there has been an error in building command line
process after virtual interfaces has been created, the flow jumps
to 'error' label, where virDomainConfNWFilterTeardown() is
called. This may report an error as well, but should not
overwrite the original cause why we jumped to 'error' label.
2013-04-25 08:59:49 +02:00
Peter Krempa 278a833922 doc: Clarify usage of SELinux baselabel
State what fields are used when generating SELinux labels from a
baselabel.
2013-04-25 08:33:52 +02:00
Osier Yang 45d6c67143 Introduce a sub-element <driver> for controller
Like what we did for "disk", "filesystem" and "interface", this
introduces sub-element <driver> for "controller", and put the "queues"
into it.
2013-04-25 12:10:58 +08:00
Wido den Hollander e3e866aee0 qemu: Don't require a block or file when looking for an alias
This for example prohibits you to use iotune for Ceph or Sheepdog devices.

Signed-off-by: Wido den Hollander <wido@widodh.nl>
2013-04-24 16:29:26 -06:00
Osier Yang 18b428980f Change the tag name "num_queues" into "queues"
Instead of making a choice between the underscore and camelCase, this
simply changes "num_queues" into "queues", which is also consistent
with Michal's multiple queue support for interface.
2013-04-24 23:36:07 +08:00
Osier Yang 148edcce66 util: Error out if the numa nodeset is out of range
Instead of a silent warning, it's better to error out if the
numa nodeset is out of range. Just like for numa node larger
than NUMA_NUM_NODES.
2013-04-24 23:23:31 +08:00
Peter Krempa 4165ea9663 selinux: Don't mask errors of virSecuritySELinuxGenNewContext
Since cbe67ff9b0
virSecuritySELinuxGenNewContext reports good error messages. Fix callers
that mask the errors by generic error message.
2013-04-24 16:03:35 +02:00
Peter Krempa 20cb7f3a41 qemu: Improve handling of channels when generating SPICE command line
Improve error reporting and generating of SPICE command line arguments
according to the need to enable TLS. If TLS is disabled, there's no need
to pass the certificate dir to qemu.

This patch resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=953126
2013-04-24 14:37:57 +02:00
Peter Krempa 7b4a630484 qemu: Do sensible auto allocation of SPICE port numbers
With this patch, if the autoport attribute is used, the code will
sensibly auto allocate the ports only if needed.
2013-04-24 14:37:20 +02:00
Daniel P. Berrange 90430791ae Make driver method names consistent with public APIs
Ensure that all drivers implementing public APIs use a
naming convention for their implementation that matches
the public API name.

eg for the public API   virDomainCreate make sure QEMU
uses qemuDomainCreate and not qemuDomainStart

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-24 11:00:18 +01:00
Daniel P. Berrange d407a11eab Dedicated name for sub-driver open/close methods
It will simplify later work if the sub-drivers have dedicated
APIs / field names. ie virNetworkDriver should have
virDrvNetworkOpen and virDrvNetworkClose methods

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-24 10:59:54 +01:00
Daniel P. Berrange 07a6b9aac4 Rename 'DeviceMonitor' to 'NodeDeviceDriver'
The driver.h struct for node devices used an inconsistent
naming scheme 'DeviceMonitor' instead of the more usual
'NodeDeviceDriver'. Fix this everywhere it has leaked
out to.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-24 10:59:53 +01:00
Daniel P. Berrange 161c823b2a Sanitize whitespace in driver.h
The driver.h file has no consistent indentation usage across
all the typedefs. Attempts to vertically align struct field
members have also been inconsistently applied. Sanitize the
whitespace used for typedefs & remove all vertical alignment
from structs

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-24 10:59:53 +01:00
Daniel P. Berrange abe038cfc0 Extend previous check to validate driver struct field names
Ensure that the driver struct field names match the public
API names. For an API virXXXX we must have a driver struct
field xXXXX. ie strip the leading 'vir' and lowercase any
leading uppercase letters.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-24 10:59:53 +01:00
Daniel P. Berrange 2601e0f2cc Ensure driver method names match public API names
Ensure that the virDrvXXX method names exactly match
the public APIs virYYY method names. ie XXX == YYY.
Add a test case to prevent any regressions.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-24 10:59:51 +01:00
Daniel P. Berrange bb03636827 Make naming of remote procedures match API names exactly
A number of the remote procedure names did not match the
corresponding API names. For example, many lacked the
word 'CONNECT', others re-arranged the names. Update the
procedures so their names exactly match the API names.
Then remove the special case handling of these APIs in
the generator

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-24 10:33:10 +01:00
Daniel P. Berrange 6da982be65 Cleanup command line options in gendispatch.pl
There are many declared options in gendispatch.pl that were
no longer used. Those which were used were obscure '-b', '-k'
and '-d'. Switch to use --mode={debug|client|server}.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-24 10:32:59 +01:00
Peter Krempa 23090823f1 qemu: Split out SPICE port allocation into a separate function
Later on this function will be used to do more sophisticated checks and
determination if port allocation is needed.
2013-04-23 21:30:56 +02:00
Peter Krempa bd15ee89a7 qemu: Use switch instead of ifs in qemuBuildGraphicsCommandLine
Switch the function from a bunch of ifs to a switch statement with
correct type and reflow some code.

Also fix comment in enum describing possible graphics types
2013-04-23 21:30:55 +02:00
Peter Krempa 66135c7208 qemu: Split out code to generate VNC command line
Decrease size of qemuBuildGraphicsCommandLine() by splitting out
spice-related code into qemuBuildGraphicsVNCCommandLine().

This patch also fixes 2 possible memory leaks on error path in the code
that was split-out. The buffer containing the already generated options
and a listen address string could be leaked.

Also break a few very long lines and reflow code that fits now.
2013-04-23 21:30:55 +02:00
Peter Krempa d05b6844c9 qemu: Split out code to generate SPICE command line
Decrease size of qemuBuildGraphicsCommandLine() by splitting out
spice-related code into qemuBuildGraphicsSPICECommandLine().

This patch also fixes 2 possible memory leaks on error path in the code
that was split-out. The buffer containing the already generated options
and a listen address string could be leaked.

Also break a few very long lines.
2013-04-23 21:30:55 +02:00
Jiri Denemark 6d4804858e qemu: Use -machine accel=tcg|kvm when available
This is a better interface to choose accelerator than guessing whether
we should enable or disable kvm to get the right one.
2013-04-23 21:19:35 +02:00
Jiri Denemark cfe24c1a18 qemu: Move -enable-kvm and friends earlier in the command line 2013-04-23 21:19:35 +02:00
Daniel P. Berrange a98541bfb4 Switch to a more extensible annotation system for RPC protocols
Currently the RPC protocol files can contain annotations after
the protocol enum eg

   REMOTE_PROC_DOMAIN_SNAPSHOT_LIST_CHILDREN_NAMES = 247, /* autogen autogen priority:high */

This is not very extensible as the number of annotations grows.
Change it to use

    /**
     * @generate: both
     * @priority: high
     */
   REMOTE_PROC_DOMAIN_SNAPSHOT_LIST_CHILDREN_NAMES = 247,

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-23 11:24:17 +01:00
Peter Krempa fa006c4fdd qemu: Fix setting of memory tunables
Refactoring done in 19c6ad9ac7 didn't
correctly take into account the order cgroup limit modification needs to
be done in. This resulted into errors when decreasing the limits.

The operations need to take place in this order:

decrease hard limit
change swap hard limit

or

change swap hard limit
increase hard limit

This patch also fixes the check if the hard_limit is less than
swap_hard_limit to print better error messages. For this purpose I
introduced a helper function virCompareLimitUlong to compare limit
values where value of 0 is equal to unlimited. Additionally the check is
now applied also when the user does not provide all of the tunables
through the API and in that case the currently set values are used.

This patch resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=950478
2013-04-23 07:10:56 +02:00
Jiri Denemark fd2e55302b logging: Make log regexp more compact (and readable) 2013-04-22 20:13:40 +02:00
Jiri Denemark 6d1b3edc6e qemu: Ignore libvirt logs when reading QEMU error output
When QEMU fails to start, libvirt read its error output and reports it
back in an error message. However, when libvirtd is configured to log
debug messages, one would get the following unhelpful garbage:

    virsh # start cd
    error: Failed to start domain cd
    error: internal error process exited while connecting to monitor: \
      2013-04-22 14:24:54.214+0000: 2194219: debug : virFileClose:72 : \
      Closed fd 21
    2013-04-22 14:24:54.214+0000: 2194219: debug : virFileClose:72 : \
      Closed fd 27
    2013-04-22 14:24:54.215+0000: 2194219: debug : virFileClose:72 : \
      Closed fd 3
    2013-04-22 14:24:54.215+0000: 2194220: debug : virExec:602 : Run \
      hook 0x7feb8f600bf0 0x7feb86ef9300
    2013-04-22 14:24:54.215+0000: 2194220: debug : qemuProcessHook:2507 \
      : Obtaining domain lock
    2013-04-22 14:24:54.216+0000: 2194220: debug : \
      virDomainLockProcessStart:170 : plugin=0x7feb780261f0 \
      dom=0x7feb7802a360 paused=1 fd=0x7feb86ef8ec4
    2013-04-22 14:24:54.216+0000: 2194220: debug : \
      virDomainLockManagerNew:128 : plugin=0x7feb780261f0 \
      dom=0x7feb7802a360 withResources=1
    2013-04-22 14:24:54.216+0000: 2194220: debug : \
      virLockManagerPluginGetDriver:297 : plugin=0x7feb780261f0
    2013-04-22 14:24:54.216+0000: 2194220: debug : \
      virLockManagerNew:321 : driver=0x7feb8ef08640 type=0 nparams=5 \
      params=0x7feb86ef8d60 flags=0
    2013-04-22 14:24:54.216+000

instead of (the output with this patch applied):

    virsh # start cd
    error: Reconnected to the hypervisor
    error: Failed to start domain cd
    error: internal error process exited while connecting to monitor: \
      char device redirected to /dev/pts/33 (label charserial0)
    qemu-system-x86_64: -drive file=/home/vm/systemrescuecd-x86-1.2.0.\
      iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw,cache=none: \
      could not open disk image /home/vm/systemrescuecd-x86-1.2.0.iso: \
      Permission denied
2013-04-22 20:13:40 +02:00
Jiri Denemark e4bdba8d7f qemu: Move QEMU log reading into a separate function 2013-04-22 20:13:40 +02:00
Gene Czarcinski 1e5306c77a update input ip processing
1. Handle invalid ULong prefix specified.
When parsing for @prefix as a ULong, a -2 can be returned
if the specification is not a valid ULong.

2.  Error out if address= is not specified.

3.  Merge netmask process/tests under family tests.

4. Max sure that prefix does not exceed maximum.
.
Signed-off-by: Gene Czarcinski <gene@czarc.net>
2013-04-22 14:10:53 -04:00
Gene Czarcinski bd7c7c1b3c create virSocketAddrGetIpPrefix utility function
Create the utility function virSocketAddrGetIpPrefix() to
determine the prefix for this network.  The code in this
function was adapted from virNetworkIpDefPrefix().

Update virNetworkIpDefPrefix() in src/conf/network_conf.c
to use the new utility function.

Signed-off-by: Gene Czarcinski <gene@czarc.net>
2013-04-22 14:10:53 -04:00
Daniel P. Berrange 1e05073fbb Replace more cases of /system with /machine
The change in commit aed4986322
was incomplete, missing a couple of cases of /system. This
caused failure to start VMs.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-22 17:11:36 +01:00
Harry Wei 0f35e00135 sheepdog: Omit braces with a single-line body
libvirt/HACKING suggests omitting braces with a
single-line body; this patch fixes the coding style
problem for the Sheepdog storage backend driver.

Signed-off-by: Harry Wei <harryxiyou@gmail.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2013-04-22 08:33:35 -06:00
Daniel P. Berrange aed4986322 Change default resource partition to /machine
After discussions with systemd developers it was decided that
a better default policy for resource partitions is to have
3 default partitions at the top level

   /system   - system services
   /machine - virtual machines / containers
   /user    - user login session

This ensures that the default policy isolates guest from
user login sessions & system services, so a mis-behaving
guest can't consume 100% of CPU usage if other things are
contending for it.

Thus we change the default partition from /system to
/machine

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-04-22 12:10:12 +01:00
Osier Yang a71ec98841 qemu: Fix the wrong expression
Wrong use of the parentheses causes "rc" always having a boolean value,
either "1" or "0", and thus we can't get the detailed error message
when it fails:

Before (I only have 1 node):
% virsh numatune f18 --nodeset 12
error: Unable to change numa parameters
error: unable to set numa tunable: Unknown error -1

After:
virsh numatune f18 --nodeset 12
error: Unable to change numa parameters
error: unable to set numa tunable: Invalid argument
2013-04-22 18:56:20 +08:00
Eric Blake 1bf25ba249 docs: fix usage of 'onto'
http://www.uhv.edu/ac/newsletters/writing/grammartip2009.07.01.htm
(and several other sites) give hints that 'onto' is best used if
you can also add 'up' just before it and still make sense. In many
cases in the code base, we really want the two-word form, or even
a simplification to just 'on' or 'to'.

* docs/hacking.html.in: Use correct 'on to'.
* python/libvirt-override.c: Likewise.
* src/lxc/lxc_controller.c: Likewise.
* src/util/virpci.c: Likewise.
* daemon/THREADS.txt: Use simpler 'on'.
* docs/formatdomain.html.in: Better usage.
* docs/internals/rpc.html.in: Likewise.
* src/conf/domain_event.c: Likewise.
* src/rpc/virnetclient.c: Likewise.
* tests/qemumonitortestutils.c: Likewise.
* HACKING: Regenerate.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-04-19 14:31:16 -06:00
Eric Blake 31c6bf35b9 audit: properly encode device path in cgroup audit
https://bugzilla.redhat.com/show_bug.cgi?id=922186

Commit d04916fa introduced a regression in audit quality - even
though the code was computing the proper escaped name for a
path, it wasn't feeding that escaped name on to the audit message.
As a result, /var/log/audit/audit.log would mention a pair of
fields class=path path=/dev/hpet instead of the intended
class=path path="/dev/hpet", which in turn caused ausearch to
format the audit log with path=(null).

* src/conf/domain_audit.c (virDomainAuditCgroupPath): Use
constructed encoding.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-04-19 12:06:08 -06:00
Ján Tomko 6f45099723 qemu: rename CheckSlot to SlotInUse
Also change its return value from int to bool.
2013-04-19 18:16:01 +02:00
Ján Tomko 5d29ca063d qemu: switch PCI address set from hash table to an array
Each bus is represented as an array of 32 8-bit integers
where each bit represents a PCI function and each byte represents
a PCI slot.

Uses just one bus so far.
2013-04-19 18:16:01 +02:00
Ján Tomko 5c3d5b22a9 conf: add model attribute to virDomainDefMaybeAddController 2013-04-19 18:16:01 +02:00
Ján Tomko db180a1d31 qemu: move PCI address check out of qemuPCIAddressAsString
Create a new function qemuPCIAddressValidate and call it everywhere
the user might supply an incorrect address:
* qemuCollectPCIAddress for domain definition
* qemuDomainPCIAddressEnsureAddr and ReleaseSlot for hotplug

Slot and function shouldn't be wrong at this point, since values
out of range should be rejected by the XML parser.
2013-04-19 17:50:54 +02:00
Ján Tomko 62940d6c68 qemu: QEMU_PCI constant consistency
Change QEMU_PCI_ADDRESS_LAST_SLOT to the number of slots in the bus,
not the maximum slot value, to match QEMU_PCI_ADDRESS_LAST_FUNCTION
and rename them both to have _LAST at the end.
2013-04-19 17:50:54 +02:00
Ján Tomko ba8b8ddb7f qemu: print PCI address hexadecimally in errors
Use the same formatting as we do for XML in error and debug outputs.
2013-04-19 17:50:54 +02:00