From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757475Ab0BMIJb (ORCPT ); Sat, 13 Feb 2010 03:09:31 -0500 Received: from mx1.redhat.com ([209.132.183.28]:31281 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752380Ab0BMICE (ORCPT ); Sat, 13 Feb 2010 03:02:04 -0500 From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 17/39] KVM: VMX: trace clts and lmsw instructions as cr accesses Date: Sat, 13 Feb 2010 10:01:37 +0200 Message-Id: <1266048119-14325-18-git-send-email-avi@redhat.com> In-Reply-To: <1266048119-14325-1-git-send-email-avi@redhat.com> References: <1266048119-14325-1-git-send-email-avi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org clts writes cr0.ts; lmsw writes cr0[0:15] - record that in ftrace. Signed-off-by: Avi Kivity --- arch/x86/kvm/vmx.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 9b197b2..7c7b2ee 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2997,6 +2997,7 @@ static int handle_cr(struct kvm_vcpu *vcpu) vmx_fpu_deactivate(vcpu); vcpu->arch.cr0 &= ~X86_CR0_TS; vmcs_writel(CR0_READ_SHADOW, vcpu->arch.cr0); + trace_kvm_cr_write(0, vcpu->arch.cr0); vmx_fpu_activate(vcpu); skip_emulated_instruction(vcpu); return 1; @@ -3016,7 +3017,9 @@ static int handle_cr(struct kvm_vcpu *vcpu) } break; case 3: /* lmsw */ - kvm_lmsw(vcpu, (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f); + val = (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f; + trace_kvm_cr_write(0, (vcpu->arch.cr0 & ~0xful) | val); + kvm_lmsw(vcpu, val); skip_emulated_instruction(vcpu); return 1; -- 1.6.5.3