linux-kernel - Re: [PATCH v2 2/6] KVM-HV: KVM Steal time implementation

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Date:	Wed, 02 Feb 2011 12:09:13 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Glauber Costa <glommer@...hat.com>
CC:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	aliguori@...ibm.com, Rik van Riel <riel@...hat.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v2 2/6] KVM-HV: KVM Steal time implementation

On 02/01/2011 09:58 PM, Glauber Costa wrote:
> >
> >  Guest reads version (result: 2)
> >  Guest starts reading data
> >  Live migration; vcpu->arch.sversion is zeroed
> >  Steal time update; vcpu->arch.sversion += 2; write to guest
> >  Guest continues reading data
> >  Guest reads version (result: 2)
> >
> >  So the guest is unaware that an update has occurred while it was reading
> >  the data.
> Ok, fair.
>
> By the way, kvmclock have the same problem, then
>

It needs the same fix then.


-- 
error compiling committee.c: too many arguments to function

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