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Re: [libvirt] [Qemu-devel] [PATCH v6 1/3] qdev: DEVICE_DELETED event



On Thu, Mar 14, 2013 at 01:13:54PM +0100, Markus Armbruster wrote:
> "Michael S. Tsirkin" <mst redhat com> writes:
> 
> > On Thu, Mar 14, 2013 at 09:06:15AM +0100, Markus Armbruster wrote:
> >> "Michael S. Tsirkin" <mst redhat com> writes:
> [...]
> >> > diff --git a/qapi-schema.json b/qapi-schema.json
> >> > index 28b070f..bb361e1 100644
> >> > --- a/qapi-schema.json
> >> > +++ b/qapi-schema.json
> >> > @@ -2354,7 +2354,9 @@
> >> >  # Notes: When this command completes, the device may not be removed from the
> >> >  #        guest.  Hot removal is an operation that requires guest cooperation.
> >> >  #        This command merely requests that the guest begin the hot removal
> >> > -#        process.
> >> > +#        process.  Completion of the device removal process is signaled with a
> >> > +#        DEVICE_DELETED event. Guest reset will automatically complete removal
> >> > +#        for all devices.
> >> >  #
> >> >  # Since: 0.14.0
> >> >  ##
> >> 
> >> What do you mean by "Guest reset will automatically complete removal for
> >> all devices"?
> >
> > Just this. Try this: rmmod acpiphp in guest, then:
> >
> > device_del
> > system_reset
> >
> > and see the device disappear even though it was not acked by guest.
> 
> Cool, I didn't know that.
> 
> Just to make sure: does this automatic removal completion send
> DEVICE_DELETED events?

With my patch, it does.


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