diff options
| author | Alexander Potashev <aspotashev@gmail.com> | 2009-10-23 19:37:23 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-24 05:06:38 -0400 |
| commit | 4868402d9582bfb00a5f0157ae5d7ffd2d539fb0 (patch) | |
| tree | 317ed346e8415fa959c8e0a3d3e0af62961b5401 /arch/x86/boot | |
| parent | b1258ac2963d42ee7e807d2993d15e3dd39ff4b0 (diff) | |
x86, boot: Simplify setting of the PAE bit
A single 'movl' is shorter than the 'xorl'-'orl' pair.
No change in behaviour.
Signed-off-by: Alexander Potashev <aspotashev@gmail.com>
LKML-Reference: <1256341043-4928-1-git-send-email-aspotashev@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/compressed/head_64.S | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 077e1b69198e..faff0dc9c06a 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S | |||
| @@ -107,8 +107,7 @@ ENTRY(startup_32) | |||
| 107 | lgdt gdt(%ebp) | 107 | lgdt gdt(%ebp) |
| 108 | 108 | ||
| 109 | /* Enable PAE mode */ | 109 | /* Enable PAE mode */ |
| 110 | xorl %eax, %eax | 110 | movl $(X86_CR4_PAE), %eax |
| 111 | orl $(X86_CR4_PAE), %eax | ||
| 112 | movl %eax, %cr4 | 111 | movl %eax, %cr4 |
| 113 | 112 | ||
| 114 | /* | 113 | /* |