[libvirt] [PATCH 0/8] qemu: add support for virtio-input devices
Martin Kletzander
mkletzan at redhat.com
Mon Nov 30 14:53:56 UTC 2015
On Mon, Nov 30, 2015 at 01:25:25PM +0100, Pavel Hrdina wrote:
>On Mon, Nov 30, 2015 at 09:14:11AM +0100, Martin Kletzander wrote:
>> On Fri, Nov 27, 2015 at 02:36:09PM +0100, Pavel Hrdina wrote:
>> >On Fri, Nov 20, 2015 at 09:59:35AM +0100, Ján Tomko wrote:
>> >> Support virtio-keyboard, virtio-mouse, virtio-tablet and virtio-input-host.
>> >>
>> >> Requires kernel 4.1+ in the guest.
>> >>
>> >> https://www.kraxel.org/blog/2015/06/new-member-in-the-virtio-family-input-devices/
>> >> https://bugzilla.redhat.com/show_bug.cgi?id=1231114
>> >>
>> >> Ján Tomko (8):
>> >> qemu: add capabilities for virtio input devices
>> >> conf: parse and format virtio input bus in domain XML
>> >> qemu: build command line for virtio input devices
>> >> qemu: add capability for virtio-input-host-device
>> >> conf: add XML for input device passthrough
>> >> security: label the evdev for input device passthrough
>> >> qemu: add passed-through input devs to cgroup ACL
>> >> qemu: build command line for virtio-input-host device
>> >>
>> >
>> >ACK series.
>> >
>> >I have only one thing to mention, but it's not in scope of this series, it's
>> >an existing behavior. If you define a new guest with mouse/keyboard input
>> >device with bus!=ps2 and graphics is defined, then we always add implicit mouse
>> >and keyboard with bus=ps2 which leads to having two different mouses and
>> >keyboards defined for the guest. We should probably update the code to not add
>> >any implicit mouse or keyboard if there is already one.
>> >
>>
>> I don't think it's that easy. We add it to the XML because when we
>> start QEMU with any graphics, it also automatically gains an
>> additional mouse and keyboard. We con't specify it on the command
>> line, so we're merely trying so that the XML matches what the domain
>> looks like.
>>
>
>In that case we should put the ps/2 mouse and keyboard always in the domain XML
>to represent actual state of the domain.
Or find out how to disable those in QEMU so that we don't double them
(that apparently causes some issues, too).
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