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

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Date:	Sat, 09 Oct 2010 20:32:14 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Gleb Natapov <gleb@...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 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 have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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