Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[mv-sheeva.git] / arch / x86 / power / cpu.c

diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index 0a979f3e5b8a7596aaf7d402cf73b0bb7eace8a9..e7e8c5f549563a6b65a4b139d8202ee878c80c74 100644 (file)
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -4,7 +4,7 @@
  * Distribute under GPLv2
  *
  * Copyright (c) 2007 Rafael J. Wysocki <rjw@sisk.pl>
- * Copyright (c) 2002 Pavel Machek <pavel@suse.cz>
+ * Copyright (c) 2002 Pavel Machek <pavel@ucw.cz>
  * Copyright (c) 2001 Patrick Mochel <mochel@osdl.org>
  */
 
@@ -105,6 +105,8 @@ static void __save_processor_state(struct saved_context *ctxt)
        ctxt->cr4 = read_cr4();
        ctxt->cr8 = read_cr8();
 #endif
+       ctxt->misc_enable_saved = !rdmsrl_safe(MSR_IA32_MISC_ENABLE,
+                                              &ctxt->misc_enable);
 }
 
 /* Needed by apm.c */
@@ -152,6 +154,8 @@ static void fix_processor_context(void)
  */
 static void __restore_processor_state(struct saved_context *ctxt)
 {
+       if (ctxt->misc_enable_saved)
+               wrmsrl(MSR_IA32_MISC_ENABLE, ctxt->misc_enable);
        /*
         * control registers
         */