From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757256AbZHZKdq (ORCPT ); Wed, 26 Aug 2009 06:33:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757226AbZHZKdl (ORCPT ); Wed, 26 Aug 2009 06:33:41 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33723 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757078AbZHZKaN (ORCPT ); Wed, 26 Aug 2009 06:30:13 -0400 From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 33/47] KVM: Update cr8 intercept when APIC TPR is changed by userspace Date: Wed, 26 Aug 2009 13:29:55 +0300 Message-Id: <1251282609-12835-34-git-send-email-avi@redhat.com> In-Reply-To: <1251282609-12835-1-git-send-email-avi@redhat.com> References: <1251282609-12835-1-git-send-email-avi@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Gleb Natapov Since on vcpu entry we do it only if apic is enabled we should do it when TPR is changed while apic is disabled. This happens when windows resets HW without setting TPR to zero. Signed-off-by: Gleb Natapov Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 132c510..31bf984 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -77,6 +77,7 @@ static u64 __read_mostly efer_reserved_bits = 0xfffffffffffffffeULL; #define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU +static void update_cr8_intercept(struct kvm_vcpu *vcpu); static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid, struct kvm_cpuid_entry2 __user *entries); @@ -1629,6 +1630,7 @@ static int kvm_vcpu_ioctl_set_lapic(struct kvm_vcpu *vcpu, vcpu_load(vcpu); memcpy(vcpu->arch.apic->regs, s->regs, sizeof *s); kvm_apic_post_state_restore(vcpu); + update_cr8_intercept(vcpu); vcpu_put(vcpu); return 0; -- 1.6.4.1