Re: [Qemu-devel] [PATCHv2 3/3] qmp: add architecture specific cpu data for query-cpus-fast

[Cornelia Huck <cohuck@redhat.com>]

On Wed, 14 Feb 2018 09:15:23 -0600
Eric Blake <eblake@redhat.com> wrote:

> On 02/14/2018 04:15 AM, Cornelia Huck wrote:
> > On Tue, 13 Feb 2018 18:18:48 +0100
> > Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com> wrote:
> >   
> 
> >> A suggestion was made on the mailing list to enhance the QAPI
> >> code generation to support two layers of unions. This would
> >> allow to specify the common fields once and avoid the duplication
> >> in the leaf unions.
> >>
> >> On the other hand, the slow query-cpus should be deprecated
> >> along with the slow CpuInfo type and eventually be removed.
> >> Assuming that new architectures will not be added at high
> >> rates, we could live with the duplication for the time being.  
> > 
> > What would be a realistic timeframe for deprecation/removal of
> > query-cpus, considering the libvirt usage? Are we aware of other users?  
> 
> Well, if we want to start the clock ticking, this series also needs to 
> touch qemu-doc.texi to start the deprecation clock, then we go at least 
> two more releases with support for both old and new commands.
> 

I'd like to know first what libvirt plans to do -- no sense in starting
deprecation if we're still stuck with it for a while.