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authorSheng Yang <sheng@linux.intel.com>2009-04-28 23:09:04 -0400
committerAvi Kivity <avi@redhat.com>2009-06-10 04:48:50 -0400
commit8e1c18157d8772e65247ac55525a05a26b83fffe (patch)
tree5f2c1ad732d0b8145d79911c9878641529954340 /virt/kvm
parent522c68c4416de3cd3e11a9ff10d58e776a69ae1e (diff)
KVM: VMX: Disable VMX when system shutdown
Intel TXT(Trusted Execution Technology) required VMX off for all cpu to work when system shutdown. CC: Joseph Cihula <joseph.cihula@intel.com> Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'virt/kvm')
-rw-r--r--virt/kvm/kvm_main.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 63d5fa2bc84a..29c0afb064da 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2391,15 +2391,15 @@ EXPORT_SYMBOL_GPL(kvm_handle_fault_on_reboot);
2391static int kvm_reboot(struct notifier_block *notifier, unsigned long val, 2391static int kvm_reboot(struct notifier_block *notifier, unsigned long val,
2392 void *v) 2392 void *v)
2393{ 2393{
2394 if (val == SYS_RESTART) { 2394 /*
2395 /* 2395 * Some (well, at least mine) BIOSes hang on reboot if
2396 * Some (well, at least mine) BIOSes hang on reboot if 2396 * in vmx root mode.
2397 * in vmx root mode. 2397 *
2398 */ 2398 * And Intel TXT required VMX off for all cpu when system shutdown.
2399 printk(KERN_INFO "kvm: exiting hardware virtualization\n"); 2399 */
2400 kvm_rebooting = true; 2400 printk(KERN_INFO "kvm: exiting hardware virtualization\n");
2401 on_each_cpu(hardware_disable, NULL, 1); 2401 kvm_rebooting = true;
2402 } 2402 on_each_cpu(hardware_disable, NULL, 1);
2403 return NOTIFY_OK; 2403 return NOTIFY_OK;
2404} 2404}
2405 2405