From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: Re: [PATCH] KVM: nVMX: Advertise IA32_PAT in VM exit control Date: Mon, 5 Aug 2013 12:33:49 +0300 Message-ID: <20130805093349.GI2258@redhat.com> References: <1375693835-10988-1-git-send-email-yzt356@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org, jan.kiszka@web.de, pbonzini@redhat.com To: Arthur Chunqi Li Return-path: Received: from mx1.redhat.com ([209.132.183.28]:34297 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751432Ab3HEJdw (ORCPT ); Mon, 5 Aug 2013 05:33:52 -0400 Content-Disposition: inline In-Reply-To: <1375693835-10988-1-git-send-email-yzt356@gmail.com> Sender: kvm-owner@vger.kernel.org List-ID: On Mon, Aug 05, 2013 at 05:10:35PM +0800, Arthur Chunqi Li wrote: > Advertise VM_EXIT_SAVE_IA32_PAT and VM_EXIT_LOAD_IA32_PAT. > > Signed-off-by: Arthur Chunqi Li > --- > arch/x86/kvm/vmx.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c > index 45fd70c..240f0db 100644 > --- a/arch/x86/kvm/vmx.c > +++ b/arch/x86/kvm/vmx.c > @@ -2198,7 +2198,8 @@ static __init void nested_vmx_setup_ctls_msrs(void) > #else > nested_vmx_exit_ctls_high = 0; > #endif > - nested_vmx_exit_ctls_high |= VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR; > + nested_vmx_exit_ctls_high |= VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR | > + VM_EXIT_LOAD_IA32_PAT | VM_EXIT_SAVE_IA32_PAT; > You should not set those if host does not support them, otherwise GUEST_IA32_PAT may not be available. -- Gleb.