linux-kernel - Re: [PATCH 14/15] KVM: MTRR: do not map huage page for non-consistent range

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Message-ID: <55700D82.6090608@redhat.com>
Date:	Thu, 04 Jun 2015 10:34:10 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Xiao Guangrong <guangrong.xiao@...ux.intel.com>
CC:	gleb@...nel.org, mtosatti@...hat.com, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 14/15] KVM: MTRR: do not map huage page for non-consistent
 range



On 04/06/2015 10:26, Xiao Guangrong wrote:
>>
>> CR0.CD is always 0 in both host and guest, i guess it's why we cleared
>> CR0.CD and CR0.NW in vmx_set_cr0().
> 
> It reminds me that we should check guest CR0.CD before check guest MTRR
> and disable guest PAT if guest CR0.CD = 1.

I think it can be done separately, on top.

Paolo
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