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>
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@ -107,8 +107,7 @@ ENTRY(startup_32)
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lgdt gdt(%ebp)
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/* Enable PAE mode */
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xorl %eax, %eax
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orl $(X86_CR4_PAE), %eax
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movl $(X86_CR4_PAE), %eax
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movl %eax, %cr4
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/*
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