[libvirt] [PATCH 0/3] qmp: query-host-cpu command

[Eduardo Habkost]

On Tue, Jun 21, 2016 at 08:20:40AM +0200, David Hildenbrand wrote:
> > Add QMP command to allow management software to query for
> > CPU information for the running host.
> > 
> > The data returned by the command is in the form of a dictionary
> > of QOM properties.
> > 
> > This series depends on the "Add runnability info to
> > query-cpu-definitions" series I sent 2 weeks ago.
> > 
> > Git tree:
> >   https://github.com/ehabkost/qemu-hacks.git work/query-host-cpu
> > 
> 
> I like that interface, I'm going to post (maybe today? :) ) a similar interface
> that allows to also expand other cpu models, not just the host model.

In x86 I want to avoid exposing the details of other CPU models
to libvirt because the details depend on machine-type.

But if it is useful for you, I believe the same "qom-properties"
dict could be returned in query-cpu-definitions.

> 
> Maybe we can then decide which one makes sense for all of us. But in general,
> this interface is much better compared to what we had before. 

Maybe both? I think it's better to have a separate interface for
querying "what exactly this host supports" and another one for
querying for "what happens if I use -cpu host". In the case of
x86, both are equivalent, but we can't guarantee this on all
architectures.

-- 
Eduardo