From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758793AbYAAPsp (ORCPT ); Tue, 1 Jan 2008 10:48:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754330AbYAAPgz (ORCPT ); Tue, 1 Jan 2008 10:36:55 -0500 Received: from il.qumranet.com ([82.166.9.18]:33792 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755051AbYAAPg3 (ORCPT ); Tue, 1 Jan 2008 10:36:29 -0500 From: Avi Kivity To: linux-kernel@vger.kernel.org, kvm-devel@lists.sourceforge.net Subject: [PATCH 40/54] KVM: SVM: Trap access to the cr8 register Date: Tue, 1 Jan 2008 17:36:06 +0200 Message-Id: <1199201780-14001-41-git-send-email-avi@qumranet.com> X-Mailer: git-send-email 1.5.3.7 In-Reply-To: <1199201780-14001-1-git-send-email-avi@qumranet.com> References: <1199201780-14001-1-git-send-email-avi@qumranet.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Later we may be able to use the virtual tpr feature, but for now, just trap it. Signed-off-by: Avi Kivity --- drivers/kvm/svm.c | 8 ++++++-- drivers/kvm/svm.h | 1 + 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c index 8b1cc60..677b525 100644 --- a/drivers/kvm/svm.c +++ b/drivers/kvm/svm.c @@ -449,11 +449,13 @@ static void init_vmcb(struct vmcb *vmcb) control->intercept_cr_read = INTERCEPT_CR0_MASK | INTERCEPT_CR3_MASK | - INTERCEPT_CR4_MASK; + INTERCEPT_CR4_MASK | + INTERCEPT_CR8_MASK; control->intercept_cr_write = INTERCEPT_CR0_MASK | INTERCEPT_CR3_MASK | - INTERCEPT_CR4_MASK; + INTERCEPT_CR4_MASK | + INTERCEPT_CR8_MASK; control->intercept_dr_read = INTERCEPT_DR0_MASK | INTERCEPT_DR1_MASK | @@ -1195,10 +1197,12 @@ static int (*svm_exit_handlers[])(struct vcpu_svm *svm, [SVM_EXIT_READ_CR0] = emulate_on_interception, [SVM_EXIT_READ_CR3] = emulate_on_interception, [SVM_EXIT_READ_CR4] = emulate_on_interception, + [SVM_EXIT_READ_CR8] = emulate_on_interception, /* for now: */ [SVM_EXIT_WRITE_CR0] = emulate_on_interception, [SVM_EXIT_WRITE_CR3] = emulate_on_interception, [SVM_EXIT_WRITE_CR4] = emulate_on_interception, + [SVM_EXIT_WRITE_CR8] = emulate_on_interception, [SVM_EXIT_READ_DR0] = emulate_on_interception, [SVM_EXIT_READ_DR1] = emulate_on_interception, [SVM_EXIT_READ_DR2] = emulate_on_interception, diff --git a/drivers/kvm/svm.h b/drivers/kvm/svm.h index 5fa277c..5fd5049 100644 --- a/drivers/kvm/svm.h +++ b/drivers/kvm/svm.h @@ -204,6 +204,7 @@ struct __attribute__ ((__packed__)) vmcb { #define INTERCEPT_CR0_MASK 1 #define INTERCEPT_CR3_MASK (1 << 3) #define INTERCEPT_CR4_MASK (1 << 4) +#define INTERCEPT_CR8_MASK (1 << 8) #define INTERCEPT_DR0_MASK 1 #define INTERCEPT_DR1_MASK (1 << 1) -- 1.5.3.7