linux/arch/x86/kernel/acpi
Shaohua Li bdfe6b7c68 pm: acpi hibernation: utilize hardware signature
ACPI defines a hardware signature.  BIOS calculates the signature according to
hardware configure and if hardware changes while hibernated, the signature
will change.  In that case, S4 resume should fail.

Still, there may be systems on which this mechanism does not work correctly,
so it is better to provide a workaround for them.  For this reason, add a new
switch to the acpi_sleep= command line argument allowing one to disable
hardware signature checking.

[shaohua.li@intel.com: build fix]
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: <Valdis.Kletnieks@vt.edu>
Cc: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:24 -07:00
..
realmode x86 ACPI: normalize segment descriptor register on resume 2008-07-05 08:25:40 +02:00
boot.c x86: convert Dprintk to pr_debug 2008-07-21 21:35:38 +02:00
cstate.c cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr 2008-07-18 22:02:57 +02:00
Makefile kbuild, suspend, x86: fix rebuild of wakeup.bin 2008-05-04 20:04:45 +02:00
processor.c ACPI: Disable the C2C3_FFH access mode HW has no MWAIT support 2008-07-16 23:27:04 +02:00
sleep.c pm: acpi hibernation: utilize hardware signature 2008-07-24 10:47:24 -07:00
sleep.h x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
wakeup_32.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
wakeup_64.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
wakeup_rm.S x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00