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| author | H. Peter Anvin <hpa@linux.intel.com> | 2012-09-27 02:02:34 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-09-27 02:06:22 +0400 |
| commit | 73201dbec64aebf6b0dca855b523f437972dc7bb (patch) | |
| tree | fdedca7d530ffda4fcb53cb084ad993555c2f948 /arch/x86/realmode/rm/wakeup.h | |
| parent | 5a5a51db78ef24aa61a4cb2ae36f07f6fa37356d (diff) | |
| download | linux-73201dbec64aebf6b0dca855b523f437972dc7bb.tar.xz | |
x86, suspend: On wakeup always initialize cr4 and EFER
We already have a flag word to indicate the existence of MISC_ENABLES,
so use the same flag word to indicate existence of cr4 and EFER, and
always restore them if they exist. That way if something passes a
nonzero value when the value *should* be zero, we will still
initialize it.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Link: http://lkml.kernel.org/r/1348529239-17943-1-git-send-email-hpa@linux.intel.com
Diffstat (limited to 'arch/x86/realmode/rm/wakeup.h')
| -rw-r--r-- | arch/x86/realmode/rm/wakeup.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/realmode/rm/wakeup.h b/arch/x86/realmode/rm/wakeup.h index 9317e0042f24..7dd86a419f5d 100644 --- a/arch/x86/realmode/rm/wakeup.h +++ b/arch/x86/realmode/rm/wakeup.h @@ -36,5 +36,7 @@ extern struct wakeup_header wakeup_header; /* Wakeup behavior bits */ #define WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE 0 +#define WAKEUP_BEHAVIOR_RESTORE_CR4 1 +#define WAKEUP_BEHAVIOR_RESTORE_EFER 2 #endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */ |