[libvirt] [PATCH v2 2/2] qemu: add spice opengl support

[Michal Privoznik]

On 22.02.2016 16:04, Daniel P. Berrange wrote:
> On Mon, Feb 22, 2016 at 09:49:04AM -0500, Marc-André Lureau wrote:
>> Hi
>>
>> ----- Original Message -----
>>> On 19.02.2016 15:30, Marc-André Lureau wrote:
>>>> Add Spice graphics gl attribute. qemu 2.6 should have -spice gl=on argument
>>>> to
>>>> enable opengl rendering context (patches on the ML). This is necessary to
>>>> actually enable virgl rendering.
>>>>
>>>> Add a qemuxml2argv test for virtio-gpu + spice with virgl.
>>>>
>>>> Signed-off-by: Marc-André Lureau <marcandre.lureau at redhat.com>
>>>> ---
>>>>  docs/formatdomain.html.in                          |  8 ++++
>>>>  docs/schemas/domaincommon.rng                      |  8 ++++
>>>>  src/conf/domain_conf.c                             | 26 ++++++++++++-
>>>>  src/conf/domain_conf.h                             |  1 +
>>>>  src/qemu/qemu_capabilities.c                       |  2 +
>>>>  src/qemu/qemu_capabilities.h                       |  1 +
>>>>  src/qemu/qemu_command.c                            | 13 +++++++
>>>>  tests/qemucapabilitiesdata/caps_2.6.0-1.caps       |  1 +
>>>>  tests/qemucapabilitiesdata/caps_2.6.0-1.replies    |  4 ++
>>>>  .../qemuxml2argv-video-virtio-gpu-spice-gl.args    | 24 ++++++++++++
>>>>  .../qemuxml2argv-video-virtio-gpu-spice-gl.xml     | 38 ++++++++++++++++++
>>>>  tests/qemuxml2argvtest.c                           |  6 +++
>>>>  .../qemuxml2xmlout-video-virtio-gpu-spice-gl.xml   | 45
>>>>  ++++++++++++++++++++++
>>>>  tests/qemuxml2xmltest.c                            |  1 +
>>>>  14 files changed, 177 insertions(+), 1 deletion(-)
>>>>  create mode 100644
>>>>  tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.args
>>>>  create mode 100644
>>>>  tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.xml
>>>>  create mode 100644
>>>>  tests/qemuxml2xmloutdata/qemuxml2xmlout-video-virtio-gpu-spice-gl.xml
>>>
>>> Looking good. ACK to the design. But I'd rather postpone pushing until
>>> qemu has released the feature. Otherwise we may end up with different
>>> functionality we claim to be supported than qemu does. Yet again.
>>
>> How much of a problem is this, since there are caps checks? (assuming
>> the interface in qemu doesn't change - I don't think it will).
>>
>> We were aiming for fedora 24 if possible, but I see qemu 2.6 is planned
>> for 04-26, which is a week after Fedora code complete deadline 04-19.
>> It's a bit sad to delay by >2 months given that Spice support is now
>> finally ready. Many people are eager to have accelerated VMs in
>> virt-manager, I wonder what solution we can find to shorten the delay.
> 
> We don't have to wait until QEMU 2.6 is released IMHO.
> 
> QEMU hard feature freeze is March 29th http://wiki.qemu.org/Planning/2.6
> If we wait until that point, we can be confident enough the QEMU interface
> won't be changing before 2.6 GA, and still haved time to get a libvirt
> release with this stuff included and into Fedora 24.

Okay. I will keep this patch in my local branch and push it afterwards.

Michal