From: Marcelo Tosatti <mtosatti@redhat.com>
To: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Cc: Gleb Natapov <gleb@redhat.com>, Avi Kivity <avi@redhat.com>,
LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
Subject: Re: [PATCH v3 2/3] KVM: MMU: fix accessed bit set on prefault path
Date: Wed, 1 Dec 2010 18:42:50 -0200 [thread overview]
Message-ID: <20101201204250.GA18395@amt.cnet> (raw)
In-Reply-To: <4CF5B0F6.8030900@cn.fujitsu.com>
On Wed, Dec 01, 2010 at 10:20:38AM +0800, Xiao Guangrong wrote:
> 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?
Dont think this is an issue. Its very likely the page is going to be
accessed soon (unlike pte prefetch).
next prev parent reply other threads:[~2010-12-01 23:34 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-30 9:34 [PATCH v3 1/3] KVM: MMU: rename 'no_apf' to 'prefault' Xiao Guangrong
2010-11-30 9:36 ` [PATCH v3 2/3] KVM: MMU: fix accessed bit set on prefault path Xiao Guangrong
2010-11-30 13:29 ` Gleb Natapov
2010-11-30 16:52 ` Xiao Guangrong
2010-11-30 17:50 ` Gleb Natapov
2010-11-30 18:15 ` Xiao Guangrong
2010-11-30 18:38 ` Gleb Natapov
2010-11-30 19:11 ` Xiao Guangrong
2010-11-30 19:20 ` Gleb Natapov
2010-12-01 2:20 ` Xiao Guangrong
2010-12-01 20:42 ` Marcelo Tosatti [this message]
2010-11-30 9:37 ` [PATCH v3 3/3] KVM: MMU: retry #PF for softmmu Xiao Guangrong
2010-12-02 1:19 ` Marcelo Tosatti
2010-12-02 3:44 ` Xiao Guangrong
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