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x86: head_64.S cleanup - use straight move to CR4 register

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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Cyrill Gorcunov 2008-05-13 21:14:22 +04:00 committed by Thomas Gleixner
parent 2237ce2057
commit 05139d8fb4
1 changed files with 1 additions and 3 deletions
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4
arch/x86/kernel/head_64.S
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@ -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. */