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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Carsten Otte <cotte@de.ibm.com>, KVM <kvm@vger.kernel.org>,
	linux-s390 <linux-s390@vger.kernel.org>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	qemu-devel <qemu-devel@nongnu.org>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	virtualization@lists.linux-foundation.org
Subject: Re: [PATCH v3 0/5] kvm: Make ioeventfd usable on s390.
Date: Tue, 26 Feb 2013 15:57:55 +0200	[thread overview]
Message-ID: <20130226135755.GB12379@redhat.com> (raw)
In-Reply-To: <512CBD36.6080003@de.ibm.com>

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 <borntraeger@de.ibm.com>
> > 
> > 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

  reply	other threads:[~2013-02-26 13:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1361806070-62465-1-git-send-email-cornelia.huck@de.ibm.com>
2013-02-26 11:04 ` [PATCH v3 0/5] kvm: Make ioeventfd usable on s390 Michael S. Tsirkin
2013-02-26 11:18   ` Michael S. Tsirkin
2013-02-26 11:54     ` Christian Borntraeger
2013-02-26 12:13     ` Christian Borntraeger
2013-02-26 13:29       ` Cornelia Huck
2013-02-26 13:41       ` Michael S. Tsirkin
2013-02-26 13:48         ` Christian Borntraeger
2013-02-26 13:57           ` Michael S. Tsirkin [this message]
     [not found]       ` <20130226142907.3a38659f@gondolin>
2013-02-26 13:56         ` Michael S. Tsirkin
2013-02-26 14:05           ` Cornelia Huck
2013-02-27 19:49     ` Christian Borntraeger
2013-03-07 18:02     ` virtio-s390: document GPR4/GPR2 cookie values Michael S. Tsirkin
2013-03-08  7:55       ` Cornelia Huck
2013-03-12  3:47         ` Rusty Russell
2013-02-26 11:29   ` [PATCH v3 0/5] kvm: Make ioeventfd usable on s390 Christian Borntraeger

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