From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH 14/15] KVM: MTRR: do not map huage page for non-consistent range Date: Thu, 04 Jun 2015 10:34:10 +0200 Message-ID: <55700D82.6090608@redhat.com> References: <1432983566-15773-1-git-send-email-guangrong.xiao@linux.intel.com> <1432983566-15773-15-git-send-email-guangrong.xiao@linux.intel.com> <556C27A5.1040908@redhat.com> <556E6CF8.9070602@linux.intel.com> <556EB30F.8030100@redhat.com> <55700B0D.8080808@linux.intel.com> <55700BCF.1010703@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: gleb@kernel.org, mtosatti@redhat.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org To: Xiao Guangrong Return-path: In-Reply-To: <55700BCF.1010703@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org 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