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KVM: VMX: Disable VMX when system shutdown

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Intel TXT(Trusted Execution Technology) required VMX off for all cpu to work
when system shutdown.

CC: Joseph Cihula <[email protected]>
Signed-off-by: Sheng Yang <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
This commit is contained in:
Sheng Yang 2009-04-29 11:09:04 +08:00 • committed by Avi Kivity
commit 8e1c18157d
1 changed files with 9 additions and 9 deletions
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18
virt/kvm/kvm_main.c
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@ -2391,15 +2391,15 @@ EXPORT_SYMBOL_GPL(kvm_handle_fault_on_reboot);
static int kvm_reboot(struct notifier_block *notifier, unsigned long val,
void *v)
{
if (val == SYS_RESTART) {
/*
* Some (well, at least mine) BIOSes hang on reboot if
* in vmx root mode.
*/
printk(KERN_INFO "kvm: exiting hardware virtualization\n");
kvm_rebooting = true;
on_each_cpu(hardware_disable, NULL, 1);
}
/*
* Some (well, at least mine) BIOSes hang on reboot if
* in vmx root mode.
*
* And Intel TXT required VMX off for all cpu when system shutdown.
*/
printk(KERN_INFO "kvm: exiting hardware virtualization\n");
kvm_rebooting = true;
on_each_cpu(hardware_disable, NULL, 1);
return NOTIFY_OK;
}