From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753470Ab0KXSSo (ORCPT ); Wed, 24 Nov 2010 13:18:44 -0500 Received: from tx2ehsobe001.messaging.microsoft.com ([65.55.88.11]:41949 "EHLO TX2EHSOBE001.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751757Ab0KXSSm (ORCPT ); Wed, 24 Nov 2010 13:18:42 -0500 X-SpamScore: -2 X-BigFish: VPS-2(zzbb2cKzz1202hzz8275bhz32i691h668h67dh685h) X-Forefront-Antispam-Report: KIP:(null);UIP:(null);IPVD:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-WSS-ID: 0LCEIUY-02-3OC-02 X-M-MSG: From: Joerg Roedel To: Avi Kivity , Marcelo Tosatti CC: , , Joerg Roedel Subject: [PATCH 3/9] KVM: SVM: Add checks for DRx read and write intercepts Date: Wed, 24 Nov 2010 19:18:29 +0100 Message-ID: <1290622715-8382-4-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1290622715-8382-1-git-send-email-joerg.roedel@amd.com> References: <1290622715-8382-1-git-send-email-joerg.roedel@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds checking for read and write intercepts from/to DRx registers from the KVM instruction emulator path. Signed-off-by: Joerg Roedel --- arch/x86/kvm/svm.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 29f0491..16ff569 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3669,6 +3669,9 @@ static int svm_insn_intercepted(struct kvm_vcpu *vcpu, case 0x20: /* CR read */ vmcb->control.exit_code = SVM_EXIT_READ_CR0 + c->modrm_reg; break; + case 0x21: + vmcb->control.exit_code = SVM_EXIT_READ_DR0 + c->modrm_reg; + break; case 0x22: /* CR write */ vmcb->control.exit_code = SVM_EXIT_WRITE_CR0 + c->modrm_reg; if (c->modrm_reg == 0 && @@ -3683,6 +3686,9 @@ static int svm_insn_intercepted(struct kvm_vcpu *vcpu, vmcb->control.exit_code = SVM_EXIT_CR0_SEL_WRITE; } break; + case 0x23: + vmcb->control.exit_code = SVM_EXIT_WRITE_DR0 + c->modrm_reg; + break; } vmcb->control.next_rip = ctxt->eip; -- 1.7.1