x86, suspend: On wakeup always initialize cr4 and EFER
authorH. Peter Anvin <hpa@linux.intel.com>
Wed, 26 Sep 2012 22:02:34 +0000 (15:02 -0700)
committerH. Peter Anvin <hpa@linux.intel.com>
Wed, 26 Sep 2012 22:06:22 +0000 (15:06 -0700)
commit73201dbec64aebf6b0dca855b523f437972dc7bb
treefdedca7d530ffda4fcb53cb084ad993555c2f948
parent5a5a51db78ef24aa61a4cb2ae36f07f6fa37356d
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
arch/x86/kernel/acpi/sleep.c
arch/x86/realmode/rm/wakeup.h
arch/x86/realmode/rm/wakeup_asm.S