From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933574AbZHWL4v (ORCPT ); Sun, 23 Aug 2009 07:56:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933532AbZHWL4s (ORCPT ); Sun, 23 Aug 2009 07:56:48 -0400 Received: from mx1.redhat.com ([209.132.183.28]:39712 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933518AbZHWL4q (ORCPT ); Sun, 23 Aug 2009 07:56:46 -0400 From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 02/46] KVM: Ignore PCI ECS I/O enablement Date: Sun, 23 Aug 2009 14:56:01 +0300 Message-Id: <1251028605-31977-3-git-send-email-avi@redhat.com> In-Reply-To: <1251028605-31977-1-git-send-email-avi@redhat.com> References: <1251028605-31977-1-git-send-email-avi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andre Przywara Linux guests will try to enable access to the extended PCI config space via the I/O ports 0xCF8/0xCFC on AMD Fam10h CPU. Since we (currently?) don't use ECS, simply ignore write and read attempts. Signed-off-by: Andre Przywara Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 96f0ae7..af40e23 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -844,6 +844,8 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) return 1; } break; + case MSR_AMD64_NB_CFG: + break; case MSR_IA32_DEBUGCTLMSR: if (!data) { /* We support the non-activated case already */ @@ -1049,6 +1051,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_P6_EVNTSEL1: case MSR_K7_EVNTSEL0: case MSR_K8_INT_PENDING_MSG: + case MSR_AMD64_NB_CFG: data = 0; break; case MSR_MTRRcap: -- 1.6.4.1