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| author | H. Peter Anvin <hpa@linux.intel.com> | 2014-03-05 15:41:15 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-03-05 15:41:15 -0800 |
| commit | fb3bd7b19b2b6ef779d18573c10c00c53cd8add6 (patch) | |
| tree | 21ca6d1f56ecf8547cc82e0408c7cf29467c0fe3 /arch/x86/kernel/reboot.c | |
| parent | a4f1987e4c5489a3877eaa7451a68d28c5a3f664 (diff) | |
| download | linux-fb3bd7b19b2b6ef779d18573c10c00c53cd8add6.tar.bz2 | |
x86, reboot: Only use CF9_COND automatically, not CF9
Only CF9_COND is appropriate for inclusion in the default chain, not
CF9; the latter will poke that register unconditionally, whereas
CF9_COND will at least look for PCI configuration method #1 or #2
first (a weak check, but better than nothing.)
CF9 should be used for explicit system configuration (command line or
DMI) only.
Cc: Aubrey Li <aubrey.li@intel.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Link: http://lkml.kernel.org/r/53130A46.1010801@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel/reboot.c')
| -rw-r--r-- | arch/x86/kernel/reboot.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index f6012953e0d8..654b46574b91 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -535,7 +535,7 @@ static void native_machine_emergency_restart(void) EFI_RESET_WARM : EFI_RESET_COLD, EFI_SUCCESS, 0, NULL); - reboot_type = BOOT_CF9; + reboot_type = BOOT_CF9_COND; break; case BOOT_CF9: |