diff options
Diffstat (limited to 'virt/kvm')
| -rw-r--r-- | virt/kvm/kvm_main.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 5186e728c53..da117a6b1e2 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; @@ -2168,8 +2170,10 @@ 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; } |