Add data based on the v7.1.0-1579-g5107fd3eff qemu commit.
Notable changes:
- New machine types and corresponding objects:
- pc-i440fx-7.2, pc-i440fx-7.2-machine, pc-q35-7.2, pc-q35-7.2-machine
- new NETDEV_STREAM_CONNECTED/NETDEV_STREAM_DISCONNECTED events
- thread-context object and prealloc-property for memory devices added
- libblkio block driver backed support added:
- new backend protocol drivers:
- io_uring, nvme-io_uring, virtio-blk-vhost-user, virtio-blk-vhost-vdpa
- New CPU flags and some CPU features become migratable
(corresponding 'cpu-host-model' test changed output)
- cpu features 'avx', 'avx2', 'f16c', 'fma', 'vaes' became available in
TCG
- 'dumpdtb' command added
- New disk frontend properties:
- account-failed, account-invalid
- New unstable commands for debugging virtio:
x-query-virtio, x-query-virtio-status, x-query-virtio-queue-status,
x-query-virtio-vhost-queue-status, x-query-virtio-queue-element
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Notable changes:
- Icelake-Client cpu model family removed:
"Icelake-Client-noTSX-x86_64-cpu"
"Icelake-Client-v1-x86_64-cpu"
"Icelake-Client-v2-x86_64-cpu"
"Icelake-Client-v3-x86_64-cpu"
"Icelake-Client-x86_64-cpu"
- 'zero-copy-send' migration feature added
- display 'sdl' qapified
- 'arch-lbr' cpu feature added
- new HyperV enlightenments:
'hv-tlbflush-ext'
'hv-tlbflush-direct'
'hv-emsr-bitmap'
'hv-xmm-input'
- 'none-machine' has two new properties:
- "boot" described as "Boot configuration"
- "memory" described as "Memory size configuration"
- 'igd-passthrough-isa-bridge' is now Xen-only
- CXL: Compute eXpress Link related devices:
"CXL"
"cxl-rp",
"cxl-type3",
"pxb-cxl",
"pxb-cxl-bus",
"pxb-cxl-host",
- 'dma-translation' feature of 'intel-iommu'
- 'vmcb-clean' cpu feature now migratable:
- possibly due to host kernel upgrade
- changes commandline generated for the 'cpu-host-model' case of
qemuxml2argvtest
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Now that qemu fixed device unplug when JSON syntax is used with -device
we can re-enable the feature.
Since the old capability string representation is condemned by
suggesting filtering it as a workaround we must introduce a new string.
To achieve this the original capability position is renamed to
X_QEMU_CAPS_DEVICE_JSON_BROKEN_HOTPLUG and a new position with the
original name QEMU_CAPS_DEVICE_JSON is introduced to prevent us having
to change the rest of the code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When -device is configured via JSON a bug [1] is triggered in qemu were
the DEVICE_DELETED event for the removal of the device frontend is no
longer delivered to libvirt. Without the DEVICE_DELETED event we don't
remove the corresponding entries in the VM XML.
Until qemu will be fixed we must stop using the JSON syntax for -device.
This patch removes the detection of the capability. The capability is
used only during startup of a fresh VM so we don't need to consider any
compaitibility steps for existing VMs.
For users who wish to use 'libvirt-7.9' and 'libvirt-7.10' with
'qemu-6.2' there are two possible workarounds:
- filter out the 'device.json' qemu capability '/etc/libvirt/qemu.conf':
capability_filters = [ "device.json" ]
- filter out the 'device.json' qemu capability via qemu namespace XML:
<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
[...]
<qemu:capabilities>
<qemu:del capability='device.json'/>
</qemu:capabilities>
</domain>
We must never again use the same capability name as we are now
instructing users to filter it as a workaround so once qemu is fixed
we'll need to pick a new capability value for it.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=2036669
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2035237
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We currently use -machine accel=XXX which is just a syntax sugar
for -accel XXX. The former doesn't allow specifying arguments for
accelerator, because all arguments passed to -machine are
treated as arguments of machine itself.
The -accel argument was introduced in QEMU commit
v2.9.0-rc0~70^2~19 and since our minimum required version is
newer (2.11.0) we can safely assume its existence and use it
without any capability.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/233
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Kashyap Chamarthy <kchamart@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
'-audiodev' as a modern implementation based on QAPI already takes JSON
as the argument. Convert our code to use it directly.
The declaration of the QAPI types can be found in
'qemu.git/qapi/audio.json'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Starting with QEMU-6.2 started accepting a JSON object as argument for
'-device' which will also become the only syntax considered stable by
qemu in the future.
Since libvirt was recently converted to generate the properties via JSON
to begin wit we can start using it on the commandline as well, by simply
enabling the QEMU_CAPS_DEVICE_JSON capability, which we do by probing
for the 'json-cli' feature flag of 'device_add'.
Normally a change which changes a commandline output should be happening
only after the impacted real-caps test files are forked in the version
preceding the change, but in this case it's not necessary as the logic
for generating the device properties stays identical and we just change
the output format (avoid conversion). Additionally we still have a lot
of tests validating the conversion to the old commandline options.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Internally format the PCI controller properties into JSON, but convert
it back to a string so that we for now change just the SCSI controller.
The change in tests is expected as the 'port' field for various PCI
controllers is expected to be a number and thus can't be represented as
a hexadecimal value in JSON.
QEMU expects the following types:
'pci-bridge'
chassis_nr=<uint8> - (default: 0)
'pxb-pcie':
bus_nr=<uint8> - (default: 0)
'pcie-root-port'
port=<uint8> - (default: 0)
chassis=<uint8> - (default: 0)
hotplug=<bool> - (default: true)
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This one will be slightly unstable given that CPU features are being
modified frequently in qemu especially when used with a modern cpu.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
