At least in case of QEMU an IOThread is actually a pool of
threads (see iothread_set_aio_context_params() in QEMU's code
base). As such, it can have minimal and maximal number of worker
threads. Allow setting them in domain XML.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@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>
Use the newly added ARG_CAPS_HOST_CPU_MODEL to set which host CPU we
expect the test to use - the test should fail when using a POWER8 host
cpu but complete when using a POWER9 host cpu.
Two new macros were added because we will be adding similar tests in the
near future when adding support for the Power10 chip.
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
The USB device redirection works in a similar way as Spice. The
underlying 'dbus' channel is set to "org.qemu.usbredir" by default for
the client to identify the channel purpose (as specified in -display
dbus documentation).
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Like a Spice port, a dbus serial must specify an associated channel name.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
By default, libvirt will start a private bus and tell QEMU to connect to
it. Instead, a D-Bus "address" to connect to can be specified, or the
p2p mode enabled.
D-Bus display works best with GL & a rendernode, which can be specified
with <gl> child element.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Add support for the mode and add the corresponding qemuxml2argv test
case.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The 'absolute' clock offset type has a 'start' attribute which is an
unix epoch timestamp to which the hardware clock is always set at start
of the VM.
This is useful if some VM needs to be kept set to an arbitrary time for
e.g. testing or working around broken software.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
We have to always store the state of the feature in the
virDomainDef struct, otherwise
<smm state='off'/>
will incorrectly be interpreted as if the <smm> element was not
present.
Fixes: eeb94215b0
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This complements the existing smm=on tests. Looking at the output
files, one can immediately see how this case is currently not being
handled correctly. We're going to fix that in the next commit.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use DO_TEST_CAPS_LATEST() instead of hardcoding capabilities and
add the xml2xml part, which was missing; finally, rename it to
accomodate the complementary smm=off test that we're about to
introduce.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Move the block guarded by 'is_tap' boolean to the only place where
'is_tap' is set to true.
This causes few arguments to change places.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Everything spice is not supported (and does not make sense) without spice
graphics. For some tests I also added cirrus VGA capability so that the XML
stays simple and libvirt can guess a default video model rather than adding too
much of an irrelevant XML into the individual tests.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This old test was added by me to allow people to keep the spicevmc
channel while changing graphics type from spice to something else.
However we do not do this in other places and also now we have all the
Validate functions so it is better to show the user they will not have
the spicevmc channel available rather than simply not formatting it on
the qemu command line.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Validate the domain configuration to ensure that if there are more than
one vgpu assigned to a domain, only one of them has 'ramfb' enabled.
This was never a supported configuration. QEMU failed confusingly when
attempting to start a domain with this configuration. This change
attempts to provide better information about the error.
https://bugzilla.redhat.com/show_bug.cgi?id=2079760
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
For finding the best matching CPU model for a given set of features
while we don't know the CPU signature (i.e., when computing a baseline
CPU model) we've been using a "shortest list of features" heuristics.
This works well if new CPU models are supersets of older models, but
that's not always the case. As a result it may actually select a new CPU
model as a baseline while removing some features from it to make it
compatible with older models. This is in general worse than using an old
CPU model with a bunch of added features as a guest OS or apps may crash
when using features that were disabled.
On the other hand we don't want to end up with a very old model which
would guarantee no disabled features as it could stop a guest OS or apps
from using some features provided by the CPU because they would not
expect them on such an old CPU.
This patch changes the heuristics to something in between. Enabled and
disabled features are counted separately so that a CPU model requiring
some features to be disabled looks worse than a model with fewer
disabled features even if its complete list of features is longer. The
penalty given for each additional disabled feature gets bigger to make
longer list of disabled features look even worse.
https://bugzilla.redhat.com/show_bug.cgi?id=1851227
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Extend the 'disk-cdrom-network' to cover this instance. This also
validates that the parameters of -blockdev conform to the QAPI schema.
Also add the xml2xml variant of this test case.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reject encryption requests for unsupported image format types.
Add negative test for the rejected cases as well as modify
'disk-network-rbd-encryption' case to validate that with librbd
encryption the format doesn't matter.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This was supposed to test the behavior when
QEMU_CAPS_MACHINE_PSERIES_MAX_CPU_COMPAT is present, but these
days that's always the case and pseries-cpu-compat already
provides all the coverage we need.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Also, validate that the requested feature is supported by QEMU.
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Added "rss" and "rss_hash_report" configuration that should be
used with qemu virtio RSS. Both options are triswitches. Used as
"driver" options and affects only NIC with model type "virtio".
In other patches - options should turn on virtio-net RSS and hash
properties.
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Starting with qemu-3.1 we always have the '-overcommit' argument and use
it instead of '-realtime'. Remove the capability check and fix all
fake-caps tests.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All qemu versions now support FD passing either directly or via FDset.
Assume that we always have this capability so that we can simplify
chardev handling in many cases.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Upcoming patches will raise the minimum required qemu version to 3.1.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Upcoming patches will raise the minimum required qemu version to 3.1.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Upcoming patches will raise the minimum required qemu version to 3.1.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virtio-iommu needs to be an integrated device, and our address
assignment code will make sure that is the case. If the user has
provided an explicit address, however, we should make sure any
addresses pointing to a different bus are rejected.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virtio-iommu is a PCI device and attempts to use a different
address type should be rejected.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virtio-iommu doesn't work without ACPI, so we need to make sure
the latter is enabled.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The QEMU binary is built from the v7.0.0-rc2 tag.
This causes the argument to -device to be generated in JSON
format, same as what 1a691fe1c8 has done for x86_64.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
The QEMU binary is built from the v7.0.0-rc2 tag.
Some of the additional capabilities that show up are a
consequence of more features being enabled in this build than
in the one used to generate the replies initially.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
While commit a5e659f0 removed the restriction against multiple queues
for the vdpa net device, there were some missing pieces. Configuring a
device statically and then starting the domain worked as expected, but
hotplugging a device didn't have the expected multiqueue support
enabled. Add the missing bits.
Consider the following device xml:
<interface type="vdpa">
<mac address="00:11:22:33:44:03" />
<source dev="/dev/vhost-vdpa-0" />
<model type="virtio" />
<driver queues='2' />
</interface>
Without this patch, hotplugging the above XML description resulted in
the following:
{"execute":"netdev_add","arguments":{"type":"vhost-vdpa","vhostdev":"/dev/fdset/0","id":"hostnet1"},"id":"libvirt-392"}
{"execute":"device_add","arguments":{"driver":"virtio-net-pci","netdev":"hostnet1","id":"net1","mac":"00:11:22:33:44:03","bus":"pci.5","addr":"0x0"},"id":"libvirt-393"}
With the patch, hotplugging results in the following:
{"execute":"netdev_add","arguments":{"type":"vhost-vdpa","vhostdev":"/dev/fdset/0","queues":2,"id":"hostnet1"},"id":"libvirt-392"}
{"execute":"device_add","arguments":{"driver":"virtio-net-pci","mq":true,"vectors":6,"netdev":"hostnet1","id":"net1","mac":"00:11:22:33:44:03","bus":"pci.5","addr":"0x0"},"id":"libvirt-393"}
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2024406
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Apply the user-requested changes to the device definition as requested
by the <qemu:deviceOverride> element from the custom qemu XML namespace.
Closes: https://gitlab.com/libvirt/libvirt/-/issues/287
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This reverts commit 06c960e477.
Turns out, this feature is not needed and QEMU will fix TSC
without any intervention from outside.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>P
QEMU 7.0.0 adds a new property tsc-clear-on-reset to x86 CPU, corresponding
to Libvirt's <tsc on_reboot="clear"/> element. Plumb it in the validation,
command line handling and tests.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Let's generate prealloc-threads property onto the cmd line if
domain configuration requests so.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Since its v5.0.0 release QEMU is capable of specifying number of
threads used to allocate memory. It defaults to 1, which may be
too low for humongous guests with gigantic pages.
In general, on QEMU cmd line level it is possible to use
different number of threads per each memory-backend-* object, in
practical terms it's not useful. Therefore, use <memoryBacking/>
to set guest wide value and let all memory devices 'inherit' it,
silently. IOW, don't introduce per device knob because that would
only complicate things for a little or no benefit.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
