From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: [PATCH 49/58] KVM: Fix adding an smp virtual machine to the vm list Date: Sun, 17 Jun 2007 12:44:30 +0300 Message-ID: <1182073481659-git-send-email-avi@qumranet.com> References: <1182073479890-git-send-email-avi@qumranet.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Return-path: In-Reply-To: <1182073479890-git-send-email-avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org If we add the vm once per vcpu, we corrupt the list if the guest has multiple vcpus. Signed-off-by: Avi Kivity --- drivers/kvm/kvm_main.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 3ff8ee5..230b25a 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -319,6 +319,9 @@ static struct kvm *kvm_create_vm(void) spin_lock_init(&kvm->lock); INIT_LIST_HEAD(&kvm->active_mmu_pages); + spin_lock(&kvm_lock); + list_add(&kvm->vm_list, &vm_list); + spin_unlock(&kvm_lock); for (i = 0; i < KVM_MAX_VCPUS; ++i) { struct kvm_vcpu *vcpu = &kvm->vcpus[i]; @@ -326,9 +329,6 @@ static struct kvm *kvm_create_vm(void) vcpu->cpu = -1; vcpu->kvm = kvm; vcpu->mmu.root_hpa = INVALID_PAGE; - spin_lock(&kvm_lock); - list_add(&kvm->vm_list, &vm_list); - spin_unlock(&kvm_lock); } return kvm; } -- 1.5.0.6 ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/