From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: [PATCH v2 0/2] Keep cr3 cached in VMCS Date: Mon, 20 Dec 2010 15:46:10 +0200 Message-ID: <1292852772-24247-1-git-send-email-avi@redhat.com> To: Marcelo Tosatti , kvm@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:58876 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754232Ab0LTNqZ (ORCPT ); Mon, 20 Dec 2010 08:46:25 -0500 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id oBKDkPeb029777 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 20 Dec 2010 08:46:25 -0500 Received: from cleopatra.tlv.redhat.com (cleopatra.tlv.redhat.com [10.35.255.11]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id oBKDkOOl009910 for ; Mon, 20 Dec 2010 08:46:24 -0500 Sender: kvm-owner@vger.kernel.org List-ID: This patchset keeps cr3 cached in the VMCS (GUEST_CR3) instead of syncing it every exit. Saves a VMREAD/VMWRITE on Intel with EPT enabled. Avi Kivity (2): KVM: Replace reads of vcpu->arch.cr3 by an accessor KVM: Fetch guest cr3 from hardware on demand v2: fix ept identity pagetable leak into guest cr3 arch/x86/include/asm/kvm_host.h | 2 ++ arch/x86/kvm/kvm_cache_regs.h | 7 +++++++ arch/x86/kvm/mmu.c | 6 +++--- arch/x86/kvm/svm.c | 13 +++++++++---- arch/x86/kvm/vmx.c | 30 +++++++++++++++++++++--------- arch/x86/kvm/x86.c | 19 ++++++++++--------- 6 files changed, 52 insertions(+), 25 deletions(-)