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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-01-30 13:32:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:32:57 +0100 |
| commit | c3bcfb57e1e64b9b2f8b2d90564826637e21c5ea (patch) | |
| tree | 04f6a09f1b4fe9072d7f9539ce7832eeeab07dca /include/asm-x86/pgtable-3level.h | |
| parent | 4614139c6a74fe02c85f702ba9c0e57f8e38647e (diff) | |
| download | op-kernel-dev-c3bcfb57e1e64b9b2f8b2d90564826637e21c5ea.zip op-kernel-dev-c3bcfb57e1e64b9b2f8b2d90564826637e21c5ea.tar.gz | |
x86: mask NX from pte_pfn
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>
Diffstat (limited to 'include/asm-x86/pgtable-3level.h')
| -rw-r--r-- | include/asm-x86/pgtable-3level.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h index 948a334..9816346 100644 --- a/include/asm-x86/pgtable-3level.h +++ b/include/asm-x86/pgtable-3level.h @@ -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; |
