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Re: [libvirt] [PATCH 7/9] qmp: Add runnability information to query-cpu-definitions



On Mon, May 09, 2016 at 09:20:15AM -0600, Eric Blake wrote:
> On 05/06/2016 12:11 PM, Eduardo Habkost wrote:
> > Extend query-cpu-definitions schema to allow it to return two new
> > optional fields: "runnable" and "unavailable-features".
> > "runnable" will tell if the CPU model can be run in the current
> > host. "unavailable-features" will contain a list of CPU
> > properties that are preventing the CPU model from running in the
> > current host.
> > 
> > Cc: David Hildenbrand <dahi linux vnet ibm com>
> > Cc: Michael Mueller <mimu linux vnet ibm com>
> > Cc: Christian Borntraeger <borntraeger de ibm com>
> > Cc: Cornelia Huck <cornelia huck de ibm com>
> > Cc: Jiri Denemark <jdenemar redhat com>
> > Cc: libvir-list redhat com
> > Signed-off-by: Eduardo Habkost <ehabkost redhat com>
> > ---
> >  qapi-schema.json | 10 +++++++++-
> >  1 file changed, 9 insertions(+), 1 deletion(-)
> > 
> > diff --git a/qapi-schema.json b/qapi-schema.json
> > index 54634c4..450e6e7 100644
> > --- a/qapi-schema.json
> > +++ b/qapi-schema.json
> > @@ -2948,11 +2948,19 @@
> >  # Virtual CPU definition.
> >  #
> >  # @name: the name of the CPU definition
> > +# @runnable: true if the CPU model is runnable using the current
> > +#            machine and accelerator. Optional. Since 2.6.
> 
> You've missed 2.6.  Also, the typical spelling for a per-member
> designation is '(since 2.7)', not 'Since 2.7'

Oops! I meant 2.7, and I didn't notice that it was not using the
typical format. I will fix it, thanks.

> 
> Why is it optional? Would it hurt to always be present in qemu new
> enough to understand why it is needed?

It is optional because not all architectures will return the
field. This series implements it only for x86.

-- 
Eduardo


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