Commit 66cbff59 authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Avi Kivity
Browse files

KVM: do not call hardware_disable() on CPU_UP_CANCELED 



When CPU_UP_CANCELED, hardware_enable() has not been called at the CPU
which is going up because raw_notifier_call_chain(CPU_ONLINE)
has not been called for this cpu.

Drop the handling for CPU_UP_CANCELED.

Signed-off-by: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 87bc3bf9

virt/kvm/kvm_main.c

+0 −5
Original line number Diff line number Diff line
@@ -1931,11 +1931,6 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val, 
		       cpu);

		hardware_disable(NULL);

		break;

	case CPU_UP_CANCELED:

		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",

		       cpu);

		smp_call_function_single(cpu, hardware_disable, NULL, 1);

		break;

	case CPU_ONLINE:

		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",

		       cpu);