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x86: mask NX from pte_pfn

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In 32-bit PAE, mask NX from pte_pfn, since it isn't part of the PFN.
This code is due for unification anyway, but this fixes a latent bug.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jeremy Fitzhardinge 2008-01-30 13:32:57 +01:00 committed by Ingo Molnar
parent 4614139c6a
commit c3bcfb57e1
1 changed files with 1 additions and 1 deletions
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include/asm-x86/pgtable-3level.h
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@ -155,7 +155,7 @@ static inline int pte_none(pte_t pte)
static inline unsigned long pte_pfn(pte_t pte)
{
return pte_val(pte) >> PAGE_SHIFT;
return (pte_val(pte) & ~_PAGE_NX) >> PAGE_SHIFT;
}
extern unsigned long long __supported_pte_mask;