Re: [Qemu-devel] [PATCH v3 0/5] kvm: Make ioeventfd usable on s390.

[Michael S. Tsirkin]

On Tue, Feb 26, 2013 at 02:48:38PM +0100, Christian Borntraeger wrote:
> On 26/02/13 14:41, Michael S. Tsirkin wrote:
> >> So...
> >> Acked-by: Christian Borntraeger <address@hidden>
> > 
> > So let's apply the patch for 3.9 and
> 
> Give us 1 or 2 days testing for regression and then this can go for 3.9.
> The host changes can then be deferred to a later point in time.

Nod.

> > avoid caring about "old guests" much?
> 
> Well caring about old guests is related to caring about malicious guests.
> Maybe we should make it explicit in the spec that the token can be wrong
> or omitted. Just to avoid that anybody starts to optimize things too
> aggressive. 
> 
> Ok?
> 
> Christian

Absolutely, we can't trust the guest anyway. It's just an optimization
hint, must validate and if it fails do a linear lookup.

-- 
MST