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authorCyrill Gorcunov <gorcunov@gmail.com>2008-05-13 21:14:22 +0400
committerThomas Gleixner <tglx@linutronix.de>2008-05-25 08:58:33 +0200
commit05139d8fb445d9a3569071af1c5920fc46191b7b (patch)
treefc8fa0397fd5e810cb933826a2726e6525afcef7 /arch/x86/kernel/head_64.S
parent2237ce2057b82561f7ea27ed30153571f404112d (diff)
x86: head_64.S cleanup - use straight move to CR4 register
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/head_64.S')
-rw-r--r--arch/x86/kernel/head_64.S4
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 2f59ca8bd16c..7475b4c91f05 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -155,9 +155,7 @@ ENTRY(secondary_startup_64)
*/
/* Enable PAE mode and PGE */
- xorq %rax, %rax
- btsq $5, %rax
- btsq $7, %rax
+ movl $(X86_CR4_PAE | X86_CR4_PGE), %eax
movq %rax, %cr4
/* Setup early boot stage 4 level pagetables. */