[libvirt] [PATCHv2 11/11] qemu: format options for enforcing virtio revisions
Boris Fiuczynski
fiuczy at linux.vnet.ibm.com
Wed Aug 10 14:27:58 UTC 2016
On 08/08/2016 06:35 PM, Ján Tomko wrote:
> https://bugzilla.redhat.com/show_bug.cgi?id=1227354
>
> Translate the optional <virtio revision> attribute to
> disable-legacy=on/off and disable-modern=on/off options
> for the following devices:
>
> <memballoon> virtio-balloon-pci
> <disk> virtio-blk-pci
> <controller> virtio-scsi-pci
> virtio-serial-pci
> <filesystem> virtio-9p-pci
> <interface> virtio-net-pci
> <rng> virtio-rng-pci
> <video> virtio-gpu-pci
> <input> virtio-input-host-pci
> virtio-keyboard-pci
> virtio-mouse-pci
> virtio-tablet-pci
> ---
> src/qemu/qemu_command.c | 56 +++++++++++++++++++
> .../qemuxml2argv-virtio-revision.args | 62 ++++++++++++++++++++++
> tests/qemuxml2argvtest.c | 11 ++++
> 3 files changed, 129 insertions(+)
Although you mention in all above devices the type of bus in the code
that differentiation does not really exist. It originates from the way
the capability QEMU_CAPS_DEVICE_VIRTIO_REVISION is sensed and set, e.g.
virQEMUCapsObjectPropsVirtioBalloon[] is also used for
virtio-balloon-ccw devices.
I would suggest to create a QEMU_CAPS_DEVICE_VIRTIO_PCI_REVISION and
sense the capability for pci only and also generate the command line
parameters for pci only since the virtio pci revision handling does not
work at all for virtio ccw.
--
Mit freundlichen Grüßen/Kind regards
Boris Fiuczynski
IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Martina Köderitz
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen
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