lkml.org 
[lkml]   [2009]   [Jun]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[RFC v4][PATCH 1/2] intel_txt: KVM shutdown fix
Fix KVM to disable itself under all shutdown conditions.  In additional to being good practice, Intel(R) TXT requires VMX to be disabled on all CPUs in order for TXT to be disabled.

In kvm.git, as f878b14017f.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
---
kvm_main.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)

--- linux-2.6.30-rc4/virt/kvm/kvm_main.c 2009-04-29 21:48:16.000000000 -0700
+++ linux-2.6.30-rc4-lkml/virt/kvm/kvm_main.c 2009-05-07 13:27:03.000000000 -0700
@@ -2112,15 +2112,15 @@ EXPORT_SYMBOL_GPL(kvm_handle_fault_on_re
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;
}


\
 
 \ /
  Last update: 2009-06-05 23:43    [W:0.032 / U:0.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site