[libvirt] ARM KVM GICv3 Support

[Peter Maydell]

On 15 December 2015 at 14:12, Martin Kletzander <mkletzan at redhat.com> wrote:
> On Tue, Dec 15, 2015 at 09:41:02AM +0000, Peter Maydell wrote:
>>
>> On 15 December 2015 at 09:36, Martin Kletzander <mkletzan at redhat.com>
>> wrote:
>>>
>>> We do pass some options, for example, you can restrict the GIC to v2:
>>> https://libvirt.org/formatdomain.html#elementsFeatures
>>>
>>> That could be modified to work for your purpose IIUC, right?
>>
>>
>> What does that option do to the QEMU command line? The documentation
>> doesn't seem to say.
>>
>
> It appends gic-version= to the machine option, if bunch of conditions
> are met -- it has to be ARM machine, it has to be something else than
> version 2, and so on, more details are visible in the code and I won't
> cover them here.  I hope that's understandable.

OK. So it should be sufficient just to have
  <gic version='host'/>
which will then provide whatever VGIC the host machine can do with
hardware acceleration.

thanks
-- PMM