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Re: [Qemu-devel] [RFC PATCH 0/5] asynchronous migration state change han

From: Alon Levy
Subject: Re: [Qemu-devel] [RFC PATCH 0/5] asynchronous migration state change handlers
Date: Wed, 6 Jun 2012 15:30:27 +0300
User-agent: Mutt/1.5.21 (2011-07-01)

On Wed, Jun 06, 2012 at 08:17:29PM +0800, Anthony Liguori wrote:
> On 06/06/2012 08:15 PM, Alon Levy wrote:
> >On Wed, Jun 06, 2012 at 08:08:40PM +0800, Anthony Liguori wrote:
> >>On 06/06/2012 08:01 PM, Yonit Halperin wrote:
> >>>On 06/06/2012 12:22 PM, Anthony Liguori wrote:
> >>>>
> >>>>So send a QMP event and call it a day.
> >>>>
> >>>Using a QMP event is making spice seamless migration dependent on libvirt
> >>>version.
> >>
> >>That is not an acceptable justification.
> >
> >To let spice know that libvirt doesn't support the new event would
> >require libvirt capabilities advertisement to qemu. Is that acceptable?
> I literally have danpb's event introspection patches from Luiz's PULL
> request testing on my system right now to be pushed.
this?: [PATCH 29/29] Add 'query-events' command to QMP to query async events

This is about libvirt getting qemu's event list. I am talking about qemu
getting libvirt to say "we support event SPICE_MIGRATE_DONE". i.e. Yet
another capability negotiation, during the handshake QMP phase.

> So this is already a solved problem.
> Regards,
> Anthony Liguori

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