linux-kernel - Re: [PATCH v3 2/3] KVM: MMU: fix accessed bit set on prefault path

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Message-ID: <4CF5B0F6.8030900@cn.fujitsu.com>
Date:	Wed, 01 Dec 2010 10:20:38 +0800
From:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To:	Gleb Natapov <gleb@...hat.com>
CC:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>
Subject: Re: [PATCH v3 2/3] KVM: MMU: fix accessed bit set on prefault path

On 12/01/2010 03:20 AM, Gleb Natapov wrote:

> Firs of all if guest is PV the guest process cannot be killed. Second
> why is it a problem that we marked pfn as accessed on speculative path?
> What problem it causes especially since it is very likely that the page
> will be accessed shortly anyway?
> 

Hi Avi, Marcelo,

What is your opinion on this point?
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