linux-kernel - Re: [PATCH v2 21/22] KVM: MMU: mmio page fault support

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Message-ID: <4E02DFE9.901@cn.fujitsu.com>
Date:	Thu, 23 Jun 2011 14:40:41 +0800
From:	Xiao Guangrong <xiaoguangrong@...fujitsu.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 v2 21/22] KVM: MMU: mmio page fault support

On 06/23/2011 11:19 AM, Xiao Guangrong wrote:

>> Otherwise you can move the mmio info from an mmio spte back to
>> mmio_gva/mmio_gfn after a TLB flush, without rereading the guest
>> pagetable.
>>
> 
> We do not read the guest page table when mmio page fault occurred,
> we just do it as you say:
> - Firstly, walk the shadow page table to get the mmio spte
> - Then, cache the mmio spte info to mmio_gva/mmio_gfn
> 
> I missed your meaning?
> 

Marcelo, sorry for my poor English, i missed your meaning, please ignore
this. :(
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