From mboxrd@z Thu Jan  1 00:00:00 1970
From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Subject: Re: [PATCH 04/15] KVM: MMU: cache mmio info on page fault path
Date: Wed, 08 Jun 2011 17:33:42 +0800
Message-ID: <4DEF41F6.8050204@cn.fujitsu.com>
References: <4DEE205E.8000601@cn.fujitsu.com> <4DEE20EE.7060000@cn.fujitsu.com> <4FA0E9B8-FBB6-49BD-916C-239599136604@suse.de> <4DEF39CB.4020109@cn.fujitsu.com> <3CA39806-D840-414B-816E-99DAB6F8FEBD@suse.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Cc: Avi Kivity <avi@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>, KVM <kvm@vger.kernel.org>
To: Alexander Graf <agraf@suse.de>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <3CA39806-D840-414B-816E-99DAB6F8FEBD@suse.de>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: kvm.vger.kernel.org

On 06/08/2011 05:18 PM, Alexander Graf wrote:

>>
>> Also, when context switched, CR3 is reloaded, mmio cache info can be cleared too. right? :-)
> 
> Only when using SPT. In the NPT case, you will never see cr3 getting reloaded or INVLPG :).
> 

In the NPT case, we only cache the GPA, GVA is not cached (vcpu.arch.mmio_gva is always 0) ;-)