[12/18] Add clock sync request to hardware enable

Commit Message

Zachary Amsden July 13, 2010, 2:08 a.m. UTC

None

Patch

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index dcaece4..574cb69 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5532,7 +5532,15 @@  int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu)
 
 int kvm_arch_hardware_enable(void *garbage)
 {
+	struct kvm *kvm;
+	struct kvm_vcpu *vcpu;
+	int i;
+
 	kvm_shared_msr_cpu_online();
+	list_for_each_entry(kvm, &vm_list, vm_list)
+		kvm_for_each_vcpu(i, vcpu, kvm)
+			if (vcpu->cpu == smp_processor_id())
+				kvm_request_guest_time_update(vcpu);
 	return kvm_x86_ops->hardware_enable(garbage);
 }
 
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d4853a5..c0f4e70 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1961,7 +1961,9 @@  static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 	case CPU_STARTING:
 		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
 		       cpu);
+		spin_lock(&kvm_lock);
 		hardware_enable(NULL);
+		spin_unlock(&kvm_lock);
 		break;
 	}
 	return NOTIFY_OK;
@@ -2166,8 +2168,10 @@  static int kvm_suspend(struct sys_device *dev, pm_message_t state)
 
 static int kvm_resume(struct sys_device *dev)
 {
-	if (kvm_usage_count)
+	if (kvm_usage_count) {
+		WARN_ON(spin_is_locked(&kvm_lock));
 		hardware_enable(NULL);
+	}
 	return 0;
 }