linux-kernel - Re: [PATCH v6 6/9] KVM: MMU: fast path of handling guest page fault

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Message-ID: <20120618192120.GA2697@amt.cnet>
Date:	Mon, 18 Jun 2012 16:21:20 -0300
From:	Marcelo Tosatti <mtosatti@...hat.com>
To:	Takuya Yoshikawa <yoshikawa.takuya@....ntt.co.jp>
Cc:	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>,
	Avi Kivity <avi@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>
Subject: Re: [PATCH v6 6/9] KVM: MMU: fast path of handling guest page fault

On Thu, Jun 14, 2012 at 10:22:14AM +0900, Takuya Yoshikawa wrote:
> On Wed, 13 Jun 2012 19:40:02 -0300
> Marcelo Tosatti <mtosatti@...hat.com> wrote:
> 
> > mmu_spte_update is handling several different cases. Please rewrite
> > it, add a comment on top of it (or spread comments on top of each
> > significant code line) with all cases it is handling (also recheck it
> > regarding new EPT accessed/dirty bits code).
> 
> [not about this patch]
> 
> EPT accessed/dirty bits will be used for more things in the future.
> Are there any rules for using these bits?
> 
> Same as other bits?

Do you mean hardware rules or KVM rules?

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