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| author | Alexander Potashev <aspotashev@gmail.com> | 2009-10-24 01:37:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-24 11:06:38 +0200 |
| commit | 4868402d9582bfb00a5f0157ae5d7ffd2d539fb0 (patch) | |
| tree | 317ed346e8415fa959c8e0a3d3e0af62961b5401 /arch/x86 | |
| parent | x86: Remove pfn in add_one_highpage_init() (diff) | |
| download | linux-4868402d9582bfb00a5f0157ae5d7ffd2d539fb0.tar.xz linux-4868402d9582bfb00a5f0157ae5d7ffd2d539fb0.zip | |
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')
| -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) lgdt gdt(%ebp) /* Enable PAE mode */ - xorl %eax, %eax - orl $(X86_CR4_PAE), %eax + movl $(X86_CR4_PAE), %eax movl %eax, %cr4 /* |