Commit Graph

15 Commits

Author SHA1 Message Date
Peter Krempa
31ee59d4e1 qemu: command: Always assume QEMU_CAPS_AUDIODEV
Generate only new version of the '-audiodev' commandline. The leftover
old code and validation will be removed in subsequent patches.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-08-11 14:38:31 +02:00
Peter Krempa
edfd78d7f6 qemu: command: Always assume QEMU_CAPS_OVERCOMMIT
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>
2022-04-04 12:26:59 +02:00
Peter Krempa
47b6829edc qemu: Always assume QEMU_CAPS_CHARDEV_FD_PASS_COMMANDLINE
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>
2022-04-04 12:26:59 +02:00
Michal Privoznik
af23241cfe qemu_command: Generate memory only after controllers
Currently, memory device (def->mems) part of cmd line is
generated before any controller. In majority of cases it doesn't
matter because neither of memory devices live on a bus that's
created by an exposed controller (e.g. there's no DIMM
controller, at least not exposed). Except for virtio-mem and
virtio-pmem, which do have a PCI address. And if it so happens
that the device goes onto non-default bus (pci.0) starting such
guest fails, because the controller that creates the desired bus
wasn't processed yet. QEMU processes arguments in order.

For instance, if virtio-mem has address with bus='0x01' QEMU
refuses to start with the following message:

  Bus 'pci.1' not found

Similarly for virtio-pmem. I've successfully tested migration and
changing the order does not affect migration stream.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2047271
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2022-02-02 14:22:47 +01:00
Michal Privoznik
d20ebdda28 qemu: Switch to -accel
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>
2021-11-22 13:06:54 +01:00
Peter Krempa
0ae3e1313f qemu: Always assume presence of QEMU_CAPS_OBJECT_SECRET
The secret object is supported since qemu-2.6 and can't be compiled out.
Assume the presence to simplify the code.

This enables the use of the secret key for most tests not using real
caps.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-22 14:53:55 +02:00
Peter Krempa
e2aa0c3b5a qemu: command: Always assume 'QEMU_CAPS_BOOT_STRICT'
Added by c8a6ae8bb9 in qemu-v1.5.0 and can't be compiled out. Assume
that it's present and fix all fake-caps tests.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-09-21 12:26:06 +02:00
Peter Krempa
c7a85b5b77 qemu: command: Always assume support for '-msg timestamp=on'
All supported QEMU versions have this option so there's no need for us
to base it on the capability.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-08-18 10:00:22 +02:00
Peter Krempa
d5a6145900 qemu: command: Always assume support for '-name guest=' and '-name debug-threads=on'
All QEMU versions we support have these and it's very unlikely that they
will be removed. Remove the capability checks.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-08-18 09:59:31 +02:00
Peter Krempa
0046e0b1c2 qemuxml2argvtest: Use internal wrapping of command line arguments
virCommandToString has the possibility to return an already wrapped
string with better format than what we get from the test wrapper script.

The main advantage is that arguments for an option are always on the
same line which makes it more easy to see what changed in a diff and
prevents re-wrapping of the line if a wrapping point moves over the
threshold.

Additionally the used output is the same we have in the VM log file when
a VM is starting.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
2021-04-12 15:55:10 +02:00
Daniel P. Berrangé
8851d87556 qemu: use on|off instead of yes|no for -object boolean properties
QEMU has long accepted many different values for boolean properties, but
set accepted has been different depending on which QEMU parser you hit.

The on|off values were supported by all QEMU parsers. The yes|no, y|n,
true|false values were only partially supported:

  https://lists.gnu.org/archive/html/qemu-devel/2020-11/msg01012.html

Thus we should standardize on on|off everywhere since that is most
widely supported in QEMU.

Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-02-16 14:03:13 +00:00
Daniel P. Berrangé
43c9c0859f qemu: use long on|off syntax for -chardev boolean option values
The preferred syntax for boolean options is to set the value "on" or
"off". QEMU 7.1.0 will deprecate the short format we currently use.

The long format has been supported with -chardev since at least 1.5.3,
so we don't need to check for it.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-02-16 12:38:20 +00:00
Andrea Bolognani
6cfae87359 tests: Simplify some ppc64 tests
We can leave out things like USB controller, memballoon device,
kernel and initrd since they're not the focus of the tests.

Propagating some information from the output files back to the
input files makes it easier to compare them, as it reduces the
resulting diff, and in the case of the qemuxml2xml test for
memory-hotplug-ppc64-nonuma it allows us to convert the output
file into a symlink, since in the specific case the XML doesn't
change at all.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-12-04 15:56:48 +01:00
Andrea Bolognani
d01098db9b tests: Sync some ppc64 tests
The ppc64 tests

  memory-hotplug-ppc64-nonuma
  memory-hotplug-nvdimm-ppc64

are not passed the same information for qemuxml2argv and
qemuxml2xml tests; the former, in particular, doesn't show up
at all in qemuxml2xml. Address this inconsistency.

Note that one of the new output files had been introduced with
5540acb9a2 despite not being actually used as of that commit.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-12-04 15:56:28 +01:00
Daniel Henrique Barboza
5540acb9a2 conf, qemu: enable NVDIMM support for ppc64
Using the 'uuid' element for ppc64 NVDIMM memory added in the
previous patch, use it in qemuBuildMemoryDeviceStr() to pass
it over to QEMU.

Another ppc64 restriction is the necessity of a mem->labelsize,
given than ppc64 only support label-area backed NVDIMMs.

Finally, we don't want ppc64 NVDIMMs to align up due to the
high risk of going beyond the end of file with a 256MiB
increment that the user didn't predict. Align it down
instead. If target size is less than the minimum of
256MiB + labelsize, error out since QEMU will error out
if we attempt to round it up to the minimum.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-24 10:02:48 +01:00