From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759936AbaLLP0e (ORCPT ); Fri, 12 Dec 2014 10:26:34 -0500 Received: from mga02.intel.com ([134.134.136.20]:6440 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759876AbaLLP03 (ORCPT ); Fri, 12 Dec 2014 10:26:29 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,564,1413270000"; d="scan'208";a="622807599" From: Feng Wu To: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, gleb@kernel.org, pbonzini@redhat.com, dwmw2@infradead.org, joro@8bytes.org, alex.williamson@redhat.com, jiang.liu@linux.intel.com Cc: eric.auger@linaro.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, Feng Wu Subject: [v3 22/26] KVM: Define a wakeup worker thread for vCPU Date: Fri, 12 Dec 2014 23:14:56 +0800 Message-Id: <1418397300-10870-23-git-send-email-feng.wu@intel.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1418397300-10870-1-git-send-email-feng.wu@intel.com> References: <1418397300-10870-1-git-send-email-feng.wu@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Define a wakeup worker thread for a vCPU. Signed-off-by: Feng Wu --- include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index ca9a393..3d7242c 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -249,6 +249,7 @@ struct kvm_vcpu { int sigset_active; sigset_t sigset; struct kvm_vcpu_stat stat; + struct work_struct wakeup_worker; #ifdef CONFIG_HAS_IOMEM int mmio_needed; diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 25ffac9..ba53fd6 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -211,6 +211,13 @@ void kvm_make_scan_ioapic_request(struct kvm *kvm) kvm_make_all_cpus_request(kvm, KVM_REQ_SCAN_IOAPIC); } +static void wakeup_thread(struct work_struct *work) +{ + struct kvm_vcpu *vcpu = container_of(work, struct kvm_vcpu, + wakeup_worker); + kvm_vcpu_kick(vcpu); +} + int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id) { struct page *page; @@ -224,6 +231,8 @@ int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id) init_waitqueue_head(&vcpu->wq); kvm_async_pf_vcpu_init(vcpu); + INIT_WORK(&vcpu->wakeup_worker, wakeup_thread); + page = alloc_page(GFP_KERNEL | __GFP_ZERO); if (!page) { r = -ENOMEM; -- 1.9.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Feng Wu Subject: [v3 22/26] KVM: Define a wakeup worker thread for vCPU Date: Fri, 12 Dec 2014 23:14:56 +0800 Message-ID: <1418397300-10870-23-git-send-email-feng.wu@intel.com> References: <1418397300-10870-1-git-send-email-feng.wu@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, eric.auger-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org To: tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org, mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, gleb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pbonzini-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org, alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, jiang.liu-VuQAYsv1563Yd54FQh9/CA@public.gmane.org Return-path: In-Reply-To: <1418397300-10870-1-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: kvm.vger.kernel.org Define a wakeup worker thread for a vCPU. Signed-off-by: Feng Wu --- include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index ca9a393..3d7242c 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -249,6 +249,7 @@ struct kvm_vcpu { int sigset_active; sigset_t sigset; struct kvm_vcpu_stat stat; + struct work_struct wakeup_worker; #ifdef CONFIG_HAS_IOMEM int mmio_needed; diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 25ffac9..ba53fd6 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -211,6 +211,13 @@ void kvm_make_scan_ioapic_request(struct kvm *kvm) kvm_make_all_cpus_request(kvm, KVM_REQ_SCAN_IOAPIC); } +static void wakeup_thread(struct work_struct *work) +{ + struct kvm_vcpu *vcpu = container_of(work, struct kvm_vcpu, + wakeup_worker); + kvm_vcpu_kick(vcpu); +} + int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id) { struct page *page; @@ -224,6 +231,8 @@ int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id) init_waitqueue_head(&vcpu->wq); kvm_async_pf_vcpu_init(vcpu); + INIT_WORK(&vcpu->wakeup_worker, wakeup_thread); + page = alloc_page(GFP_KERNEL | __GFP_ZERO); if (!page) { r = -ENOMEM; -- 1.9.1