linux-kernel - Re: [PATCH 2/8] KVM: MMU: set the dirty bit for the upper shadow page

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Message-ID: <4F0BC298.7090608@linux.vnet.ibm.com>
Date:	Tue, 10 Jan 2012 12:46:16 +0800
From:	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
To:	Marcelo Tosatti <mtosatti@...hat.com>
CC:	Avi Kivity <avi@...hat.com>, LKML <linux-kernel@...r.kernel.org>,
	KVM <kvm@...r.kernel.org>
Subject: Re: [PATCH 2/8] KVM: MMU: set the dirty bit for the upper shadow
 page

On 01/09/2012 07:30 PM, Marcelo Tosatti wrote:

> On Fri, Dec 16, 2011 at 06:14:24PM +0800, Xiao Guangrong wrote:
>> Upper page do not need to be tracked the status bit, it is safe to set the
>> dirty and let cpu to happily prefetch it
>>
>> Signed-off-by: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
>> ---
>>  arch/x86/kvm/mmu.c |   13 +++++--------
>>  1 files changed, 5 insertions(+), 8 deletions(-)
> 
> Dirty bit is ignored in non-leaf pagetable entries.
> 

Sorry, i forgot it!

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