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Date: Tue, 16 Feb 2016 12:15:32 +0000
From: "Daniel P. Berrange" <berrange@redhat.com>
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Subject: Re: [Qemu-devel] [libvirt] [RFC PATCH 0/2] ARM: add QMP command to
 query GIC version
Reply-To: "Daniel P. Berrange" <berrange@redhat.com>
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To: Andrea Bolognani <abologna@redhat.com>
Cc: Wei Huang <wei@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Andrew Jones <drjones@redhat.com>, Libvirt <libvir-list@redhat.com>, Markus Armbruster <armbru@redhat.com>, Peter Xu <peterx@redhat.com>, QEMU Developers <qemu-devel@nongnu.org>, Paolo Bonzini <pbonzini@redhat.com>

On Tue, Feb 16, 2016 at 01:05:45PM +0100, Andrea Bolognani wrote:
> On Tue, 2016-02-16 at 10:15 +0000, Daniel P. Berrange wrote:
> > > Back to GIV.=C2=A0=C2=A0Recognized values of gic-version are fixed =
at compile
> > > time: 2, 3, host.=C2=A0=C2=A0Once again, QOM does things in code ra=
ther than data:
> > > the set of values is defined in the setter function
> > > virt_set_gic_version().
> > >=C2=A0
> > > Some values are accepted only together with other configuration: 3
> > > requires accel=3Dkvm (for now), host requires -cpu host.=C2=A0=C2=A0=
Static
> > > introspection can't show such constraints.
> > >=C2=A0
> > > Would the proposed query-gic-capability show them?=C2=A0=C2=A0How?
> >=C2=A0
> > Also bear in mind that libvirt probes capabilities using '-m none' so
> > you're not going to have any 'virt' machine type instantiated when
> > probing is done.
>=20
> The idea is to add this information to domain capabilities, which
> already have virtualization type, architecture and machine type as
> inputs.

Regardless of the way it is exposed in libvirt API, when libvirt probes
for capabilities it will *always* use '-m none'.

Regards,
Daniel
--=20
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