diff options
| author | H. Peter Anvin <hpa@zytor.com> | 2009-11-13 15:28:14 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-11-16 13:44:57 -0800 |
| commit | a7c4c0d934c6cbc58de262d090d4a715445453f0 (patch) | |
| tree | f321fc60984d17c57a65bac6820a12b61d6ed8d4 /arch/x86/kernel/machine_kexec_32.c | |
| parent | 8a50e5135af0c243e117e94e27feb8d149c879b4 (diff) | |
x86, sleep: Always save the value of EFER
Always save the value of EFER, regardless of the state of NX. Since
EFER may not actually exist, use rdmsr_safe() to do so.
v2: check the return value from rdmsr_safe() instead of relying on
the output values being unchanged on error.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Nigel Cunningham <nigel@tuxonice.net>
LKML-Reference: <1258154897-6770-3-git-send-email-hpa@zytor.com>
Acked-by: Kees Cook <kees.cook@canonical.com>
Diffstat (limited to 'arch/x86/kernel/machine_kexec_32.c')
0 files changed, 0 insertions, 0 deletions