Commit Graph

620 Commits

Author SHA1 Message Date
Marc Hartmayer
a50b45a297 qemu: Fix memory leak in virQEMUCapsLoadCPUModels
Don't leak @blockNodes in the loop.

==226576== 7,120 bytes in 60 blocks are definitely lost in loss record 122 of 125
==226576==    at 0x4835214: calloc (vg_replace_malloc.c:711)
==226576==    by 0x4950D7B: virAllocN (viralloc.c:191)
==226576==    by 0x49EB5BB: virXPathNodeSet (virxml.c:676)
==226576==    by 0x104DB67: virQEMUCapsLoadCPUModels (qemu_capabilities.c:3738)
==226576==    by 0x105510D: virQEMUCapsLoadCache (qemu_capabilities.c:3929)
==226576==    by 0x104459F: qemuTestParseCapabilities (testutilsqemu.c:498)
==226576==    by 0x1040DC9: testQemuCapsCopy (qemucapabilitiestest.c:105)
==226576==    by 0x1041F07: virTestRun (testutils.c:180)
==226576==    by 0x1040B45: mymain (qemucapabilitiestest.c:181)
==226576==    by 0x104320F: virTestMain (testutils.c:1119)
==226576==    by 0x1041149: main (qemucapabilitiestest.c:193)

Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-10-27 10:13:43 +02:00
Jiri Denemark
c1a63a5f7b qemu: Parse CPU stepping from query-cpu-model-expansion
Even though only family and model are used for matching CPUID data with
CPU models from cpu_map.xml, stepping is used by x86DataFilterTSX which
is supposed to disable TSX on CPU models with broken TSX support. Thus
we need to start parsing stepping from QEMU to make sure we don't
disable TSX on CPUs which provide working TSX implementation. See the
following patch for a real world example of such CPU.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-10-17 22:37:04 +02:00
Jiri Denemark
7bca16937a cputest: Test CPU usability blockers
Gather query-cpu-definitions results and use them for testing CPU model
usability blockers in CPUID to virCPUDef translation.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-10-16 09:23:20 +02:00
Jiri Denemark
a62dca833e cpu: Drop unused parameter from cpuDecode
The "preferred" parameter is not used by any caller of cpuDecode
anymore. It's only used internally in cpu_x86 to implement cpuBaseline.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-10-16 09:21:52 +02:00
Jiri Denemark
fd885a06a0 cpu: Use virDomainCapsCPUModelsPtr in cpu driver APIs
All APIs which expect a list of CPU models supported by hypervisors were
switched from char **models and int models to just accept a pointer to
virDomainCapsCPUModels object stored in domain capabilities. This avoids
the need to transform virDomainCapsCPUModelsPtr into a NULL-terminated
list of model names and also allows the various cpu driver APIs to
access additional details (such as its usability) about each CPU model.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-10-16 09:21:52 +02:00
Jiri Denemark
e9f8e1b8e6 qemu: Parse unavailable features for CPU models
query-cpu-definitions QMP command returns a list of unavailable features
which prevent CPU models from being usable on the current host. So far
we only checked whether the list was empty to mark CPU models as
(un)usable. This patch parses all unavailable features for each CPU
model and stores them in virDomainCapsCPUModel as a list of usability
blockers.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-10-16 09:21:52 +02:00
Jiri Denemark
1255fa877a qemu: Store CPU usability blockers in caps cache
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-10-16 09:21:51 +02:00
Jiri Denemark
0861080f0e conf: Add usability blockers to virDomainCapsCPUModel
When a hypervisor marks a CPU model as unusable on the current host, it
may also give us a list of features which prevent the model from being
usable. Storing this list in virDomainCapsCPUModel will help the CPU
driver with creating a host-model CPU configuration.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-10-16 09:21:51 +02:00
Lin Ma
c7bdeed559 qemucapstest: Update test data for 'num-queues' property of virtio-blk
Signed-off-by: Lin Ma <lma@suse.com>
2017-10-04 17:50:53 +02:00
Peter Krempa
a5852db182 qemu: capabilities: Remove support for downstream-only QMP monitor backport
Some distros (see diff) chose to backport QMP support rather than rebase
to newer version of qemu. As a hack they added the string 'libvirt' to
the qemu -help output. Remove this as downstream-only hacks should be
carried by downstream and not litter upstream.

This effectively reverts commit ff88cd5905
2017-09-22 14:28:26 +02:00
John Ferlan
fa6159dd15 qemu: Detect support for vxhs
Using the query-qmp-schema introspection - look for the 'vxhs'
blockdevOptions type.

NB: This is a "best effort" type situation as there is not a
    mechanism to determine whether the running QEMU has been
    built with '--enable-vxhs'. All we can do is check if the
    option to use vxhs for a blockdev-add exists in the command
    infrastructure which does not take that into account when
    building its table of commands and options.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2017-09-19 21:10:21 -04:00
Jiri Denemark
399f91694f qemu: Publish virQEMUCapsCPUFilterFeatures
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-09-18 10:40:12 +02:00
Jiri Denemark
b0b5c9c620 qemu: Pass virArch * to virQEMUCapsCPUFilterFeatures
The filter only needs to know the CPU architecture. Passing
virQEMUCapsPtr as opaque is a bit overkill.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-09-18 10:40:12 +02:00
Peter Krempa
1666d10793 qemu: caps: Deprecate QEMU_CAPS_BLOCKJOB_SYNC
Interestingly, none of the qemus we have caps for supported it ...

Reviewed-by: Eric Blake <eblake@redhat.com>
2017-09-14 10:03:47 +02:00
Martin Kletzander
66c4e15335 qemu: Add capabilities for virtio-vga/gpu's max_outputs= parameter
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2017-08-29 11:17:16 +02:00
Pavel Hrdina
5f7da98b3f qemu: introduce QEMU_CAPS_CHARDEV_RECONNECT
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-08-29 10:30:05 +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
Michal Privoznik
2074ef6cd4 Add support for virtio-net.tx_queue_size
https://bugzilla.redhat.com/show_bug.cgi?id=1462653

Just like I've added support for setting rx_queue_size (in
c56cdf259 and friends), qemu just gained support for setting tx
ring size.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-08-02 15:37:09 +02:00
Pavel Hrdina
cb9e09b502 qemu: capabilities: introduce QEMU_CAPS_VNC_MULTI_SERVERS
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-07-27 10:49:55 +02:00
Pavel Hrdina
f444e5b4a2 qemu: privatize _virQEMUCapsCachePriv struct
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-26 15:36:47 +02:00
Pavel Hrdina
d03de54e7e qemu: switch QEMU capabilities to use virFileCache
The switch contains considerable amount of changes:

  virQEMUCapsRememberCached() is removed because this is now handled
  by virFileCacheSave().

  virQEMUCapsInitCached() is removed because this is now handled by
  virFileCacheLoad().

  virQEMUCapsNewForBinary() is split into two functions,
  virQEMUCapsNewData() which creates new data if there is nothing
  cached and virQEMUCapsLoadFile() which loads the cached data.
  This is now handled by virFileCacheNewData().

  virQEMUCapsCacheValidate() is removed because this is now handled by
  virFileCacheValidate().

  virQEMUCapsCacheFree() is removed because it's no longer required.

  Add virCapsPtr into virQEMUCapsCachePriv because for each call of
  virFileCacheLookup*() we need to use current virCapsPtr.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-26 15:36:21 +02:00
Pavel Hrdina
f366cfed62 qemu: pass only host arch instead of the whole virCaps
This is a preparation for following patches where we switch to
virFileCache for QEMU capabilities cache

The host arch will always remain the same but virCaps may change.  Now
the host arch is stored while creating new qemu capabilities cache.
It removes the need to pass virCaps into virQEMUCapsCache*() functions.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-26 15:35:24 +02:00
Pavel Hrdina
731cfd5fe8 qemu: introduce struct _virQEMUCapsCachePriv
This will store private data that will be used by following patches
when switching to virFileCache.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-26 15:33:59 +02:00
Shivaprasad G Bhat
1cb188de70 qemu_capabilities: Fix the formatting with a space
It was observed while adding new property that there should be a space
before closing a curly brace in intel-iommu object property definition.
Fixing it as a separate patch.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
2017-07-24 15:09:47 +02:00
Michal Privoznik
313274a756 qemu_capabilities: Honour caps values formatting
So the way we format this huge virQEMUCaps enum is we group the
values in groups of five. And then at the beginning of each group
we have a small comment that says what's the number of the first
item in the group. Well, the last commit of 11b2ebf3e1 does not
follow this formatting.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-07-22 10:30:19 +02:00
Shivaprasad G Bhat
11b2ebf3e1 qemu: capabilitity: Introduce QEMU_CAPS_SPAPR_PCI_HOST_BRIDGE_NUMA_NODE
The patch adds a capability for spapr-pci-host-bridge.numa_node.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2017-07-21 15:46:29 +02:00
Pavel Hrdina
7fb4c471d1 qemu: separate virQEMUCapsInitCached out of virQEMUCapsNewForBinaryInternal
Preparation for switching to virFileCache where there are two callbacks,
one to get a new data and second one to load a cached data.

This also removes virQEMUCapsReset which is no longer required.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-20 14:02:53 +02:00
Pavel Hrdina
56a047a67e qemu: don't pass qemuctime into virQEMUCapsIsValid
It's not required and following patches will change the code.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-20 14:02:32 +02:00
Pavel Hrdina
7fcf66cf63 qemu: move libvirt ctime and version check into virQEMUCapsIsValid
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-20 14:02:14 +02:00
Pavel Hrdina
f2dd7259b4 qemu: move virQEMUCapsIsValid before its usage and make it static
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-20 14:02:14 +02:00
Pavel Hrdina
a63ef87709 qemu: move libvirt ctime and version into _virQEMUCaps struct
Cleanups the code a little bit and reduces amount of arguments passed
throughout the functions.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-20 14:02:14 +02:00
Pavel Hrdina
38e516a524 util/virhash: add name parameter to virHashSearch
While searching for an element using a function it may be
desirable to know the element key for future operation.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2017-07-20 14:02:14 +02:00
Andrea Bolognani
2e7d491696 qemu: Introduce QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE
This new capability can be used to detect whether a QEMU
binary supports the spapr-pci-host-bridge controller.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Laine Stump <laine@laine.org>
2017-07-15 14:50:42 +02:00
Jiri Denemark
ee4180bef1 qemu: Export virQEMUCapsGuestIsNative
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-07-13 09:53:15 +02:00
Cole Robinson
405c0f07f5 qemu: Rename SupportsChardev to IsPlatformDevice
This is only used in qemu_command.c, so move it, and clarify that
it's really about identifying if the serial config is a platform
device or not.

Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
2017-07-10 17:25:26 -04:00
Cole Robinson
b4d5604350 qemu: caps: blacklist QEMU_CAPS_CHARDEV
Every qemu version we support has QEMU_CAPS_CHARDEV, so stop
explicitly tracking it and blacklist it like we've done for many
other feature flags.

Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
2017-07-10 17:15:53 -04:00
Cole Robinson
948e429f48 qemu: caps: Tweak arm conditional in SupportsChardev
Rather than try to whitelist all device configs that can't use
-chardev, blacklist the only one that really can't, which is the
default serial/console target type=isa case.

ISA specifically isn't a valid config for arm/aarch64, but we've
always implicitly treated it to mean 'default platform device'.

Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
2017-07-10 16:21:23 -04:00
Cole Robinson
e4574da0b7 Revert "qemu: Support chardevs with ARM virt machines"
This reverts commit 70c9b44270.

This commit breaks existing aarch64 machvirt configs with:

    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>

Which fails with:

error: Failed to start domain fedora25-aarch64
error: internal error: process exited while connecting to monitor:
2017-06-26T13:55:34.726293Z qemu-system-aarch64: -chardev pty,id=charserial0:
char device redirected to /dev/pts/5 (label charserial0)
2017-06-26T13:55:34.782121Z qemu-system-aarch64: -device
isa-serial,chardev=charserial0,id=serial0: No 'ISA' bus found for device
'isa-serial'
2017-06-27 09:12:26 -04:00
Christoffer Dall
70c9b44270 qemu: Support chardevs with ARM virt machines
The function to check if -chardev is supported by QEMU was written a
long time ago, where adding chardevs did not make sense on the fixed ARM
platforms.  Since then, we now have a general purpose virt platform,
which should support plugging in any device over PCIe which is supported
in a similar fashion on x86.

Signed-off-by: Christoffer Dall <cdall@linaro.org>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2017-06-25 09:52:50 +08:00
Peter Krempa
753b8197f5 qemu: capabilities: Move comments separating groups of capabilities
Similarly to how we specify the groups of 5 capabilities in the header
file move the labels to separate line also for the VIR_ENUM_IMPL part.

This simplifies rebase conflict resolution in the capability file since
only lines have to be shuffled around, but they don't need to be edited.
2017-06-21 08:35:59 +02:00
Farhan Ali
04b1d5d192 qemu: Introduce a new QEMU capability for -machine loadparm
Add new capability for the "-machine loadparm" QEMU option.

Add the capabilities replies/xml for s390x for QEMU 2.9.50.

Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
2017-06-20 07:03:22 -04:00
Ján Tomko
b2cbc3a060 qemu: format virtio-related options on the command line
Format iommu_platform= and ats= for virtio devices.

https://bugzilla.redhat.com/show_bug.cgi?id=1283251

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-06-08 16:33:13 +02:00
Ján Tomko
240e443afd qemu: format device-iotlb on intel-iommu command line
Format the device-iotlb attribute.

https://bugzilla.redhat.com/show_bug.cgi?id=1283251

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-06-08 16:31:28 +02:00
Jiri Denemark
25af7e950a conf: Add save cookie callbacks to xmlopt
virDomainXMLOption gains driver specific callbacks for parsing and
formatting save cookies.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2017-06-07 13:36:01 +02:00
Michal Privoznik
4f0aeed871 virDomainXMLOption: Introduce virDomainABIStabilityDomain
While checking for ABI stability, drivers might pose additional
checks that are not valid for general case. For instance, qemu
driver might check some memory backing attributes because of how
qemu works. But those attributes may work well in other drivers.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-06-05 09:08:52 +02:00
Ján Tomko
381e638d81 qemu: format eim on intel-iommu command line
This option turns on extended interrupt mode,
which allows more than 255 vCPUs.

https://bugzilla.redhat.com/show_bug.cgi?id=1451282

Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2017-05-26 08:16:29 +02:00
Andrea Bolognani
5290d4fdaf qemu: Use qemuDomainMachineIsVirt() more
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-05-16 16:48:30 +02:00
Ján Tomko
a56914486c qemu: format caching-mode on iommu command line
Format the caching-mode option for the intel-iommu device,
based on its <driver caching> attribute value.

https://bugzilla.redhat.com/show_bug.cgi?id=1427005
2017-05-15 15:44:11 +02:00
Ján Tomko
04028a9db9 qemu: format intel-iommu,intremap on the command line
https://bugzilla.redhat.com/show_bug.cgi?id=1427005
2017-05-15 15:44:11 +02:00