Re: [Qemu-devel] [PATCH] Remove hardcoded xen-platform device initialization

[Paolo Bonzini]

Il 14/06/2013 04:50, Paul Durrant ha scritto:
>> > This patch is problematic because we can't know for sure the version of
>> > upstream QEMU that is going to be used with Xen.
>> > If we apply this patch and QEMU 1.5 is going to be used with Xen 4.2,
>> > guests won't be able to use PV drivers.
>> > 
> Is there not a compatibility matrix? The hardcoded init. is just blatantly 
> the wrong thing to be doing and it needs to go.
> 
> Could my accompanying toolstack patch not be backported to the next 4.2 
> release as mitigation?

I think Ian is right.  You should revert the toolstack patch and not
apply this one for now.  Then aim at using "-M pc" in 4.4 (and require
1.6 or 1.7), so that there is no need for a compatibility matrix.

Paolo