Commit Graph

27146 Commits

Author SHA1 Message Date
Scott Garfinkle
b7e779c1a5 docs: document migrate-getmaxdowntime support 2017-08-26 07:55:17 -04:00
Scott Garfinkle
9002c5047a virsh: Add support for virDomainMigrateGetMaxDowntime
Implement a migrate-getmaxdowntime command to complement migrate-setmaxdowntime.
2017-08-26 07:55:17 -04:00
Scott Garfinkle
457f8f33c9 qemu: Implement virDomainMigrateGetMaxDowntime
Add code to support querying maximum allowable downtime during live migration.
2017-08-26 07:55:17 -04:00
Scott Garfinkle
4601a546b7 Add virDomainMigrateGetMaxDowntime public API
Add virDomainMigrateGetMaxDowntime to support querying maximum allowable
downtime during live migration.
2017-08-26 07:55:17 -04:00
Andrea Bolognani
ed9db36b42 qemu: Report error on failure to set isolation group
This is more user-friendly because the error will be
displayed directly instead of being buried in the log.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-25 10:05:45 +02:00
Nitesh Konkar
941ec9b6a7 virt-host-validate: Fix warning for IOMMU detection on PPC
Fix the warning generated on PPC by virt-host-validate for IOMMU.
In case of PPC, IOMMU in the host kernel either has it or it's not
compiled in. The /sys/kernel/iommu_groups check is good enough to
verify if it was compiled with the kernel or not.

Modify the error message when "if (sb.st_nlink <= 2)" to indicate
what the problem would be since there would be no @bootarg.

Signed-off-by: Nitesh Konkar <nitkon12@linux.vnet.ibm.com>
2017-08-24 18:37:37 -04:00
Erik Skultety
70f564d8f4 Revert "maint: Update to latest gnulib"
Revert @f8172388c which broke the build on Centos 6, because of old
autoconf (< 2.63b) not properly quoting arguments for shell.
2017-08-24 19:07:53 +02:00
George Dunlap
92b6c99223 libxl: Avoid a variable named 'stat'
Using a variable named 'stat' clashes with the system function
'stat()' causing compiler warnings on some platforms:

libxl/libxl_driver.c: In function 'libxlDomainBlockStatsVBD':
libxl/libxl_driver.c:5387: error: declaration of 'stat' shadows a global declaration [-Wshadow]
/usr/include/sys/stat.h:455: error: shadowed declaration is here [-Wshadow]

Signed-off-by: George Dunlap <george.dunlap@citrix.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2017-08-24 16:22:27 +02:00
Erik Skultety
f8172388cc maint: Update to latest gnulib
This pulls in, among other new things, vc-list-files fix to make
syntax-check work with git worktrees.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2017-08-24 10:40:06 +02:00
Ján Tomko
d9fc08d103 vmx: do not treat controllers as implicit devices
When parsing the config, we look for the SCSI controllers one by one,
remembering their models, then let virDomainDefAddImplicitDevices
add them if any SCSI disk is using them.

Since these controllers are not really implicit (they are present
in the source config), add them explicitly.

This patch maintains the behavior of not adding a controller
if it was present in the config, but no disk was using it.

This also resolves the memory leak of virVMXParseConfig overwriting
the video device added by calling virDomainDefAddImplicitDevices
before the parsing is finished.

Reported-by: Michal Privoznik <mprivozn@redhat.com>
2017-08-24 09:46:56 +02:00
Nikolay Shirokovskiy
c22f02cfdf vz: build fix
6e6faf6d changed vzDomObjAlloc signature in source but not in header file.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2017-08-24 09:40:34 +02:00
Ján Tomko
126e6f381a conf: check address type for USB hostdevs
https://bugzilla.redhat.com/show_bug.cgi?id=1225339
2017-08-24 09:28:53 +02:00
Ján Tomko
cdf72e19d9 conf: move hostdev address validation to virDomainHostdevDefValidate
For selected hostdev types, we validate that the address type
matches the subsystem type when parsing the XML.

Move it to the validation phase, to allow extending the checks
to other subsystem types without making existing domains disappear.
2017-08-24 09:28:53 +02:00
John Ferlan
f60ec522a3 tests: Fix leak in securityselinuxtest
If we jump to the error: label and @secbuf is allocated, then it's not
free'd at all.

Found by Coverity
2017-08-23 12:32:23 -04:00
Nikolay Shirokovskiy
f3cdbf22e3 vz: support disabled items in vz boot order
At the time the check was written virtuozzo did not use disabled items in boot
order configuration. Boot items were always enabled. Now they can be disabled
as well. Supporting such items is easy - they just should be ignored.
2017-08-23 09:03:27 -04:00
Andrea Bolognani
d89fa8306e docs: Define anchors correctly in pci-hotplug
HTML5 obsoletes the 'name' attribute in favor of 'id',
and our TOC generator apparently follows the recommendation
to the letter, resulting in a broken TOC if you use the
old-school attribute.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-08-23 13:58:45 +02:00
Ján Tomko
a530078cd2 conf: do not count per-device boot elements when parsing <os><boot>
When parsing bootable devices, we maintain a bitmap of used
<boot order=""> elements. Use it in the post-parse function
to figure out whether the user tried to mix per-device and
per-domain boot elements.

This removes the need to count them twice.
2017-08-22 17:47:24 +02:00
Ján Tomko
4b759a4041 conf: create a thin wrapper above virDomainDefPostParse
Rename the original function to virDomainDefPostParseInternal
to allow adding arguments that will be only used by the internal
version.
2017-08-22 17:47:24 +02:00
Ján Tomko
c4480eef08 conf: rename virDomain*PostParseInternal to virDomain*PostParseCommon
These functions contain the post-parse steps common for all drivers.
Rename it to use the 'Common' prefix, instead of the vagueness
of 'Internal', leaving 'Internal' available for other vague uses.
2017-08-22 17:47:23 +02:00
Pavel Hrdina
1e4cc18890 conf: move chardev validation into virDomainDeviceDefValidateInternal
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:44:36 +02:00
Pavel Hrdina
a4ba59ff4b conf: separate PTY chardev source parsing
There is no reason why to share the same code for PTY and other file
based chardev source types.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:44:36 +02:00
Pavel Hrdina
9b341bbf41 conf: move FILE chardev source parsing to separate function
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:44:36 +02:00
Pavel Hrdina
65f4e2ff27 conf: assign parsed strings directly into chardev source definition
Since the source element is parsed only once for these type of
character devices we don't have to use temporary variable and
check whether the variable was already set.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:44:36 +02:00
Pavel Hrdina
2c9b97d842 conf: move UNIX chardev source parsing to separate function
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:44:36 +02:00
Pavel Hrdina
34e0eb7dc4 conf: move UDP chardev source parsing to separate function
The extra check whether (connect|bind)(Host|Service) was set is
required because for UDP chardev there can be two source elements.
Without the check there could be a memory leak.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:44:36 +02:00
Pavel Hrdina
40b0f40b54 conf: move TCP chardev source parsing to separate function
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:44:36 +02:00
Pavel Hrdina
9ed225e910 conf: move mode parsing of chardev source to separate function
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:44:36 +02:00
Pavel Hrdina
3672fc99f4 conf: move chardev log parsing to separate function
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:44:36 +02:00
Pavel Hrdina
f2be5b38f0 conf: move chardev protocol parsing to separate function
In order to ensure that the default protocol is RAW, explicitly
assigning VIR_DOMAIN_CHR_TCP_PROTOCOL_RAW = 0.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:43:51 +02:00
Pavel Hrdina
209fa11b02 conf: error out for multiple protocol elements while parsing chardev
Remove check whether a variable was already set because the element
is parsed only once now.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:28:40 +02:00
Pavel Hrdina
23482e4b1e conf: error out for multiple log elements while parsing chardev
Remove check whether a variable was already set because the element
is parsed only once now.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:28:40 +02:00
Pavel Hrdina
21bfd1e9b9 conf: error out for multiple source elements while parsing chardev
Currently we accept and correctly parse this chardev XML:

  ...
  <channel type='tcp'>
    <source mode='connect'/>
    <source mode='bind' host='localhost'/>
    <source service='4567'/>
    <target type='virtio' name='test'/>
  </channel>
  ...

The parsed formatted XML is:

  ...
  <channel type='tcp'>
    <source mode='connect' host='localhost' service='4567'/>
    <target type='virtio' name='test'/>
  </channel>
  ...

That behavior is super wrong and should not be allowed.  If you notice
the current parse takes the first found attribute and uses that value,
so for example from the "<source mode='bind' host='localhost'/>" only
the "host" attribute is used.  It works the same way for all possible
attributes that we are able to parse for source element.

This patch enforces providing only one source element for all character
devices, only for UDP type we allow to provide two source elements
since you can specify both modes.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:28:40 +02:00
Pavel Hrdina
7d0ff9430b conf: switch from while to for loop for chardev parsing
This removes one level of indentation.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:28:40 +02:00
Pavel Hrdina
e90ba2541d tests: introduce genericxml test for UNIX chardev
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:28:40 +02:00
Pavel Hrdina
ad5982dd16 tests: introduce genericxml test for UDP chardev
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:28:40 +02:00
Pavel Hrdina
fedf120925 tests: introduce genericxml test for TCP chardev
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-22 17:28:40 +02:00
Ján Tomko
bad14fbbed conf: useserial: drop useless check for serial devices
Since its introduction in commit 874e65aa, if someone requests:
<os><bios useserial="yes"/><os/>
we report an error if we cannot successfully count the number
of serial devices via an XPath query.

Instead of fixing the check (and moving it to the validation phase,
to prevent existing domains from disappearing), drop it completely.
For QEMU, the number of serials is checked when building the command
line.
2017-08-22 09:44:28 +02:00
Jim Fehlig
0f1993aa15 Don't autogenerate seclabels of type 'none'
When security drivers are active but confinement is not enabled,
there is no need to autogenerate <seclabel> elements when starting
a domain def that contains no <seclabel> elements. In fact,
autogenerating the elements can result in needless save/restore and
migration failures when the security driver is not active on the
restore/migration target.

This patch changes the virSecurityManagerGenLabel function in
src/security_manager.c to only autogenerate a <seclabel> element
if none is already defined for the domain *and* default
confinement is enabled. Otherwise the needless <seclabel>
autogeneration is skipped.

Resolves: https://bugzilla.opensuse.org/show_bug.cgi?id=1051017
2017-08-21 09:22:26 -06:00
Jim Fehlig
ff7e0a1a40 Fix building domain def in securityselinuxtest
The virDomainDef created by testBuildDomainDef in securityselinuxtest
adds a seclabel but does not increment nseclabels. Also, it should
populate seclabel->model with 'selinux'.

While at it, use the secdef itself to populate values instead of
the indirection through def->seclabels[0].
2017-08-21 09:10:31 -06:00
Lily Zhu
6134dc2a6b tools: Fix docs in libvirt-guests configuration file
It was not entirely clear that PARALLEL_SHUTDOWN setting is applied only
when the desired action is "shutdown".

Signed-off-by: Lily Zhu <lizhu@redhat.com>
2017-08-21 16:12:42 +02:00
Andrea Bolognani
11d5271ebb docs: Improve PCI topology and hotplug guidelines
Address some minor flaws in the original document that
were pointed out during review.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-08-21 15:16:05 +02:00
Andrea Bolognani
64357c3f93 conf: Use the correct limit for the number of PHBs
I mistakenly thought pSeries guests supported 32 PHBs,
but it turns out they only support 31. Validate the
target index accordingly.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1479647

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-08-21 13:11:49 +02:00
Andrea Bolognani
c9d75d655a conf: Move target index validation
Validation should happen after parsing, so the proper
location for it is virDomainControllerDefValidate()
rather than virDomainControllerDefParseXML().

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-08-21 13:11:48 +02:00
Andrea Bolognani
9e318ad713 tests: Improve target index validation coverage
Split one of the existing tests to ensure both configuration
errors it contained cause a failure, and introduce a new
test case.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-08-21 13:11:48 +02:00
Peter Krempa
7726d1581f qemu: Implement postParse callback skipping on config reload
Use the new facility which allows to ignore failures in post parse
callbacks if they are not fatal so that VM configs are not lost if the
emulator binary is missing.

If qemuCaps can't be populated on daemon restart skip certain portions
of the post parse callbacks during config reload and re-run the callback
during VM startup.

This fixes VMs vanishing if the emulator binary was broken or
uninstalled and libvirtd was restarted.
2017-08-18 15:07:44 +02:00
Peter Krempa
7808884808 qemu: domain: Don't set default USB model if qemuCaps is missing
qemuDomainControllerDefPostParse assigns the default USB controller
model when it was not specified by the user. Skip this step if @qemuCaps
is missing so that we don't fill wrong data. This will then be fixes by
re-running the post parse callback.
2017-08-18 15:07:44 +02:00
Peter Krempa
fde772cf82 qemu: domain: Don't return default NIC model if @qemuCaps are missing
Return NULL in qemuDomainDefaultNetModel if qemuCaps is missing and the
network card model would be determined by the capabilities.
2017-08-18 15:07:44 +02:00
Peter Krempa
6df29d0816 qemu: capabilities: Tolerate missing @qemuCaps in virQEMUCapsSupportsGICVersion
Report the given GIC version as unsupported if @qemuCapsi is NULL. This
will be helpful to run post parse callbacks even if qemu is not
currently installed.
2017-08-18 15:07:44 +02:00
Peter Krempa
9088d42da1 qemu: capabilities: Tolerate missing @qemuCaps in virQEMUCapsGetCanonicalMachine
If qemuCaps are not present, just return the original machine type name.

This will help in situations when qemuCaps is not available in the post
parse callback.
2017-08-18 15:07:44 +02:00
Peter Krempa
7c5cf4983c conf: add infrastructure for tolerating certain post parse callback failures
Some failures of the post parse callback can be tolerated. This is
specifically desired when loading the configs of existing VMs. In such
case the post parse callback should not really be modifying anything
in the definition.

This patch adds a parse flag VIR_DOMAIN_DEF_PARSE_ALLOW_POST_PARSE_FAIL
which will allow the callbacks to report non-fatal failures by returning
a positive return value. In such case the field 'postParseFailed' in the
domain definition is set to true, to notify the drivers that the
callback failed and possibly needs to be re-run.
2017-08-18 15:07:44 +02:00