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Commit Graph

180 Commits

Author SHA1 Message Date
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
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
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
Shivaprasad G Bhat
eb56cc6f88 Add capabilities for qemu-2.9.0 ppc64
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
Boris Fiuczynski
d2f6bebf5c tests: enable qemu 2.9 capabilities test for s390
Adjust qemu 2.9 s390 capabilites xml and enable qemu capabilities test.

Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
2017-07-18 13:52:48 +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
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
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
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
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
Ján Tomko
6b5c6314b2 qemu: format kernel_irqchip on the command line
Add kernel_irqchip=split/on to the QEMU command line
and a capability that looks for it in query-command-line-options
output. For the 'split' option, use a version check
since it cannot be reasonably probed.

https://bugzilla.redhat.com/show_bug.cgi?id=1427005
2017-05-15 15:44:11 +02:00
Pavel Hrdina
5237a74d4a qemu: introduce QEMU_CAPS_DEVICE_QEMU_XHCI
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Acked-by: Andrea Bolognani <abologna@redhat.com>
2017-04-28 10:44:03 +02:00
Jiri Denemark
df13c0b477 qemu: Add support for guest CPU cache
This patch maps /domain/cpu/cache element into -cpu parameters:

- <cache mode='passthrough'/> is translated to host-cache-info=on
- <cache level='3' mode='emulate'/> is transformed into l3-cache=on
- <cache mode='disable'/> is turned in host-cache-info=off,l3-cache=off

Any other <cache> element is forbidden.

The tricky part is detecting whether QEMU supports the CPU properties.

The 'host-cache-info' property is introduced in v2.4.0-1389-ge265e3e480,
earlier QEMU releases enabled host-cache-info by default and had no way
to disable it. If the property is present, it defaults to 'off' for any
QEMU until at least 2.9.0.

The 'l3-cache' property was introduced later by v2.7.0-200-g14c985cffa.
Earlier versions worked as if l3-cache=off was passed. For any QEMU
until at least 2.9.0 l3-cache is 'off' by default.

QEMU 2.9.0 was the first release which supports probing both properties
by running device-list-properties with typename=host-x86_64-cpu. Older
QEMU releases did not support device-list-properties command for CPU
devices. Thus we can't really rely on probing them and we can just use
query-cpu-model-expansion QMP command as a witness.

Because the cache property probing is only reliable for QEMU >= 2.9.0
when both are already supported for quite a few releases, we let QEMU
report an error if a specific cache mode is explicitly requested. The
other mode (or both if a user requested CPU cache to be disabled) is
explicitly turned off for QEMU >= 2.9.0 to avoid any surprises in case
the QEMU defaults change. Any older QEMU already turns them off so not
doing so explicitly does not make any harm.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-04-27 22:41:10 +02:00
Pavel Hrdina
26d21e5de8 tests: update QEMU 2.9.0 caps data to final version
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-04-26 19:34:25 +02:00
Andrea Bolognani
560335c35c qemu: Advertise ACPI support for aarch64 guests
So far, libvirt has assumed that only x86 supports ACPI,
but that's inaccurate since aarch64 supports it too.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1429509
2017-04-03 10:58:00 +02:00
Jiri Denemark
385c1cc96c qemu: Check non-migratable host CPU features
CPU features which change their value from disabled to enabled between
two calls to query-cpu-model-expansion (the first with no extra
properties set and the second with 'migratable' property set to false)
can be marked as enabled and non-migratable in qemuMonitorCPUModelInfo.

Since the code consuming qemuMonitorCPUModelInfo currently ignores the
migratable flag, this change is effectively changing the CPU model
advertised in domain capabilities to contain all features (even those
which block migration). And this matches what we do for QEMU older than
2.9.0, when we detect all CPUID bits ourselves without asking QEMU.

As a result of this change

    <cpu mode='host-model'>
      <feature name='invtsc' policy='require'/>
    </cpu>

will work with all QEMU versions. Such CPU definition would be forbidden
with QEMU >= 2.9.0 without this patch.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-30 09:59:42 +02:00
Jiri Denemark
91927c62d8 qemu: Check migratable host CPU features
If calling query-cpu-model-expansion on the 'host'/'max' CPU model with
'migratable' property set to false succeeds, we know QEMU is able to
tell us which features would disable migration. Thus we can mark all
enabled features as migratable.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-30 09:59:42 +02:00
Jiri Denemark
03a6a0dbe0 qemuMonitorCPUModelInfo: Add support for non-migratable features
QEMU is able to tell us whether a CPU feature would block migration or
not. This patch adds support for storing such features in
qemuMonitorCPUModelInfo.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-30 09:59:42 +02:00
Peter Krempa
e2b05c9a8d qemu: capabilities: add capability for query-named-block-nodes qmp cmd 2017-03-27 10:35:19 +02:00
Peter Krempa
73d4b32427 qemu: monitor: Add support for BLOCK_WRITE_THRESHOLD event
The event is fired when a given block backend node (identified by the
node name) experiences a write beyond the bound set via
block-set-write-threshold QMP command. This wires up the monitor code to
extract the data and allow us receiving the events and the capability.
2017-03-27 09:29:57 +02:00
Pavel Hrdina
a3fb3a3590 tests: update QEMU 2.9.0 caps data
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-03-21 12:53:12 +01:00
Guido Günther
009c07b9f2 qemu: skip QMP probing of CPU definitions when missing
This unbreaks emulators that don't support this command such as
qemu-system-mips*.

Reference: http://bugs.debian.org/854125
2017-03-17 10:51:49 +01:00
Andrea Bolognani
c51090fc99 qemu: Add support for generic PCIe Root Ports
QEMU 2.9 introduces the pcie-root-port device, which is
a generic version of the existing ioh3420 device.

Make the new device available to libvirt users.
2017-03-17 10:06:11 +01:00
Jiri Denemark
bb3363c90b qemu: Use full CPU model expansion on x86
The static CPU model expansion is designed to return only canonical
names of all CPU properties. To maintain backwards compatibility libvirt
is stuck with different spelling of some of the features, but we need to
use the full expansion to get the additional spellings. In addition to
returning all spelling variants for all properties the full expansion
will contain properties which are not guaranteed to be migration
compatible. Thus, we need to combine both expansions. First we need to
call the static expansion to limit the result to migratable properties.
Then we can use the result of the static expansion as an input to the
full expansion to get both canonical names and their aliases.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-03 19:57:57 +01:00
Jiri Denemark
d7f054a512 qemu: Probe "max" CPU model in TCG
Querying "host" CPU model expansion only makes sense for KVM. QEMU 2.9.0
introduces a new "max" CPU model which can be used to ask QEMU what the
best CPU it can provide to a TCG domain is.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-03 19:57:57 +01:00
Jiri Denemark
2fc215dd2a qemu: Store more types in qemuMonitorCPUModelInfo
While query-cpu-model-expansion returns only boolean features on s390,
but x86_64 reports some integer and string properties which we are
interested in.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-03 19:57:56 +01:00
Jiri Denemark
03a34f6b84 qemu: Prepare for more types in qemuMonitorCPUModelInfo
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-03 19:57:56 +01:00
Jiri Denemark
4c0723a1d7 qemu: Rename hostCPU/feature element in capabilities cache
The element will be generalized in the following commits.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-03 19:57:56 +01:00
Jiri Denemark
2a586b4402 qemucapstest: Update test data for QEMU 2.9.0
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2017-03-03 19:57:56 +01:00
Andrea Bolognani
5b78337992 qemu: Drop QEMU_CAPS_PCI_MULTIBUS
Due to the extra architecture-specific logic, it's already
necessary for users to call virQEMUCapsHasPCIMultiBus(),
so the capability itself is just a pointless distraction.
2017-03-03 12:55:13 +01:00
Pavel Hrdina
579fc9a287 tests: add QEMU 2.9.0 caps data
QEMU 2.9.0 is not released yet but it's close to its release and
we need this data to implement new features that will be in
that release.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-02-20 13:13:52 +01:00
Pavel Hrdina
a6e28aa599 tests: update QEMU 2.8.0 caps data
The old data was generated from not released QEMU.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-02-20 12:46:15 +01:00
Jiri Denemark
5d513d4659 qemu-caps: Get host model directly from Qemu when available
When qmp query-cpu-model-expansion is available probe Qemu for its view of the
host model. In kvm environments this can provide a more complete view of the
host model because features supported by Qemu and Kvm can be considered.

Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com>
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
2017-01-06 12:24:57 +01:00
Collin L. Walling
fab9d6e1a9 qemu: qmp query-cpu-model-expansion command
query-cpu-model-expansion is used to get a list of features for a given cpu
model name or to get the model and features of the host hardware/environment
as seen by Qemu/kvm.

Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com>
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
2017-01-06 12:24:57 +01:00
Collin L. Walling
dedfa94368 test-data: Qemu caps replies and xml for s390x qemu 2.7 and 2.8
Expected Qemu replies for versions 2.7 and 2.8 from the s390x
Qemu binary.

Signed-off-by: Collin L. Walling <walling@linux.vnet.ibm.com>
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
2017-01-06 12:24:56 +01:00
Peter Krempa
cf44dc072a qemu: capabilities: Add gluster.debug_level detection for 2.8.0+
Qemu 2.8.0+ changes arguments structure for blockdev-add in the effort
to make it finally stable. Since libvirt recently added the detection of
gluster debug support relying on the old syntax we need to add the new
as well.
2016-12-07 13:34:22 +01:00
Peter Krempa
c168c910c5 test: qemucaps: Bump 2.8.0 state to current master
Qemu decided to change a parameter name in rc-state which was not
captured by the 2.8.0 data. Bump it to current version.
2016-12-07 13:34:22 +01:00
John Ferlan
d3364dfdc8 caps: Add new capability for the iotune group name
Add the capability to detect if the qemu binary can support the feature
to use throttling.group.
2016-12-05 18:12:08 -05:00
Jiri Denemark
a1adfb0f06 qemu: Add support for unavailable-features
QEMU 2.8.0 adds support for unavailable-features in
query-cpu-definitions reply. The unavailable-features array lists CPU
features which prevent a corresponding CPU model from being usable on
current host. It can only be used when all the unavailable features are
disabled. Empty array means the CPU model can be used without
modifications.

We can use unavailable-features for providing CPU model usability info
in domain capabilities XML:

    <domainCapabilities>
      ...
      <cpu>
        <mode name='host-passthrough' supported='yes'/>
        <mode name='host-model' supported='yes'>
          <model fallback='allow'>Skylake-Client</model>
          ...
        </mode>
        <mode name='custom' supported='yes'>
          <model usable='yes'>qemu64</model>
          <model usable='yes'>qemu32</model>
          <model usable='no'>phenom</model>
          <model usable='yes'>pentium3</model>
          <model usable='yes'>pentium2</model>
          <model usable='yes'>pentium</model>
          <model usable='yes'>n270</model>
          <model usable='yes'>kvm64</model>
          <model usable='yes'>kvm32</model>
          <model usable='yes'>coreduo</model>
          <model usable='yes'>core2duo</model>
          <model usable='no'>athlon</model>
          <model usable='yes'>Westmere</model>
          <model usable='yes'>Skylake-Client</model>
          ...
        </mode>
      </cpu>
      ...
    </domainCapabilities>

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-28 09:11:22 +01:00
Jiri Denemark
047e7dd9ec tests: Add QEMU 2.8.0 capabilities data
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-28 09:11:15 +01:00
Jiri Denemark
0237f1ceb6 tests: Update capabilities for QEMU 2.7.0
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-25 21:00:19 +01:00
Jiri Denemark
0d2c389fad tests: Update capabilities for QEMU 2.6.0 (ppc64le)
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-25 20:59:57 +01:00
Jiri Denemark
f8b7b075b6 tests: Update capabilities for QEMU 2.6.0 (aarch64, GICv3)
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-25 20:59:34 +01:00
Jiri Denemark
451dc19353 tests: Update capabilities for QEMU 2.6.0 (aarch64, GICv2)
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-25 20:34:27 +01:00
Jiri Denemark
e6bad6b63d tests: Update capabilities for QEMU 2.6.0
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-25 20:34:27 +01:00
Jiri Denemark
ca6b026303 tests: Update capabilities for QEMU 2.5.0
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-25 20:34:27 +01:00