linux-kernel - Re: [PATCH v3 2/9] KVM: MMU: abstract spte write-protect

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Message-Id: <20120421101049.421a744ba5898b6173159cb4@gmail.com>
Date:	Sat, 21 Apr 2012 10:10:49 +0900
From:	Takuya Yoshikawa <takuya.yoshikawa@...il.com>
To:	Marcelo Tosatti <mtosatti@...hat.com>
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 v3 2/9] KVM: MMU: abstract spte write-protect

On Fri, 20 Apr 2012 18:33:19 -0300
Marcelo Tosatti <mtosatti@...hat.com> wrote:

> It is preferable to remove all large sptes including read-only ones, the
> current behaviour, then to verify that no read->write transition can
> occur in fault paths (fault paths which are increasing in number).
> 

I think we should use separate function than spte_write_protect() for
the large case.

	Takuya
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