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x86, boot: Simplify setting of the PAE bit

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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>
This commit is contained in:
Alexander Potashev 2009-10-24 03:37:23 +04:00 committed by Ingo Molnar
parent b1258ac296
commit 4868402d95
1 changed files with 1 additions and 2 deletions
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3
arch/x86/boot/compressed/head_64.S
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@ -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
/*