[PATCH 7/7] KVM: Use CPU_DYING for disabling virtualization

Avi Kivity
2007-05-24T12:12:16Z

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>
---
drivers/kvm/kvm_main.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index a632c8d..e9aa86d 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -2915,8 +2915,8 @@ 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",
--
1.5.0.6