From patchwork Tue Feb 1 19:16:40 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Glauber Costa X-Patchwork-Id: 523731 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p11JIvZo001365 for ; Tue, 1 Feb 2011 19:18:58 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752654Ab1BATSY (ORCPT ); Tue, 1 Feb 2011 14:18:24 -0500 Received: from mx1.redhat.com ([209.132.183.28]:9576 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752480Ab1BATSS (ORCPT ); Tue, 1 Feb 2011 14:18:18 -0500 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id p11JI9h6026465 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 1 Feb 2011 14:18:09 -0500 Received: from virtlab1.virt.bos.redhat.com (virtlab1.virt.bos.redhat.com [10.16.72.21]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id p11JI8a7014939; Tue, 1 Feb 2011 14:18:08 -0500 From: Glauber Costa To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, aliguori@us.ibm.com, Jan Kiszka Subject: [PATCH v2] release kvmclock page on reset Date: Tue, 1 Feb 2011 14:16:40 -0500 Message-Id: <1296587800-19589-1-git-send-email-glommer@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.11 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Tue, 01 Feb 2011 19:19:15 +0000 (UTC) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index bcc0efc..c39ab4a 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1453,6 +1453,14 @@ static int kvm_pv_enable_async_pf(struct kvm_vcpu *vcpu, u64 data) return 0; } +static void kvmclock_reset(struct kvm_vcpu *vcpu) +{ + if (vcpu->arch.time_page) { + kvm_release_page_dirty(vcpu->arch.time_page); + vcpu->arch.time_page = NULL; + } +} + int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) { switch (msr) { @@ -1510,10 +1518,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) break; case MSR_KVM_SYSTEM_TIME_NEW: case MSR_KVM_SYSTEM_TIME: { - if (vcpu->arch.time_page) { - kvm_release_page_dirty(vcpu->arch.time_page); - vcpu->arch.time_page = NULL; - } + kvmclock_reset(vcpu); vcpu->arch.time = data; kvm_make_request(KVM_REQ_CLOCK_UPDATE, vcpu); @@ -5814,10 +5819,7 @@ void kvm_put_guest_fpu(struct kvm_vcpu *vcpu) void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) { - if (vcpu->arch.time_page) { - kvm_release_page_dirty(vcpu->arch.time_page); - vcpu->arch.time_page = NULL; - } + kvmclock_reset(vcpu); free_cpumask_var(vcpu->arch.wbinvd_dirty_mask); fx_free(vcpu); @@ -5878,6 +5880,8 @@ int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu) kvm_make_request(KVM_REQ_EVENT, vcpu); vcpu->arch.apf.msr_val = 0; + kvmclock_reset(vcpu); + kvm_clear_async_pf_completion_queue(vcpu); kvm_async_pf_hash_reset(vcpu); vcpu->arch.apf.halted = false;