KVM: Use CPU_DYING for disabling virtualization



Only at the CPU_DYING stage can we be sure that no user process will
be scheduled onto the cpu and oops when trying to use virtualization
extensions.

Signed-off-by: Avi Kivity <avi@qumranet.com>

parent 4267c41a

drivers/kvm/kvm_main.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -3004,8 +3004,8 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
		int cpu = (long)v;

		switch (val) {
		case CPU_DOWN_PREPARE:
		case CPU_DOWN_PREPARE_FROZEN:
		case CPU_DYING:
		case CPU_DYING_FROZEN:
		case CPU_UP_CANCELED:
		case CPU_UP_CANCELED_FROZEN:
		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",