[libvirt PATCH 2/5] conf: add reporting of "maximum" CPU mode in domain caps

[Daniel P. Berrangé]

On Tue, Feb 09, 2021 at 02:19:21PM +0000, Richard W.M. Jones wrote:
> On Tue, Feb 09, 2021 at 01:58:58PM +0000, Daniel P. Berrangé wrote:
> > +    <mode name='maximum' supported='yes'>
> > +      <enum name='maximumMigratable'>
> > +        <value>on</value>
> > +        <value>off</value>
> > +      </enum>
> > +    </mode>
> >      <mode name='host-model' supported='yes'>
> 
> Hmmm - that "supported" attribute is something I hadn't noticed
> before.  Does this mean <mode name='maximum' supported='no'> is
> possible in qemu capabilities?  A quick scan of the libguestfs code
> seems to show we don't cope with that.

It will be possible for QEMU versions prior to 2.9.0, as they dont
support "-cpu max".  Some architectures may not support this too.
At least ppc64, aarch64 and x86-64 and s390 do. 

Regards,
Daniel
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