linux-kernel - Re: [PATCH v6 02/12] Halt vcpu if page it tries to access is swapped out.

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Date:	Sun, 10 Oct 2010 09:30:41 +0200
From:	Gleb Natapov <gleb@...hat.com>
To:	Avi Kivity <avi@...hat.com>
Cc:	kvm@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, mingo@...e.hu,
	a.p.zijlstra@...llo.nl, tglx@...utronix.de, hpa@...or.com,
	riel@...hat.com, cl@...ux-foundation.org, mtosatti@...hat.com
Subject: Re: [PATCH v6 02/12] Halt vcpu if page it tries to access is
 swapped out.

On Sat, Oct 09, 2010 at 08:32:14PM +0200, Avi Kivity wrote:
>  On 10/09/2010 08:30 PM, Avi Kivity wrote:
> >>So that "info cpu" will interfere with apf? Migration should work
> >>in regular way. apf state should not be migrated since it has no meaning
> >>on the destination. I'll make sure synthetic halt state will not
> >>interfere with migration.
> >
> >
> >If you deliver an apf, the guest expects a completion.
> >
> 
> btw, the token generation scheme resets as well.  Draining the queue
> fixes that as well.
> 
I don't see what's there to fix. Can you explain what problem you see in
the way current code works?

--
			Gleb.
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