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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-07-21 22:59:56 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-22 10:43:45 +0200 |
| commit | 77be1fabd024b37423d12f832b1fbdb95dbdf494 (patch) | |
| tree | b1fa99ff9b1c0bcb63c7a602a425d72b24c1ede6 /include/asm-x86/page.h | |
| parent | 59438c9fc4f7a92c808c9049bc6b396f98bf954c (diff) | |
| download | kernel-crypto-77be1fabd024b37423d12f832b1fbdb95dbdf494.tar.gz kernel-crypto-77be1fabd024b37423d12f832b1fbdb95dbdf494.tar.xz kernel-crypto-77be1fabd024b37423d12f832b1fbdb95dbdf494.zip | |
x86: add PTE_FLAGS_MASK
PTE_PFN_MASK was getting lonely, so I made it a friend.
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/page.h')
| -rw-r--r-- | include/asm-x86/page.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index e99fb9fe6f8..6c846228948 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -21,6 +21,9 @@ /* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */ #define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK) +/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */ +#define PTE_FLAGS_MASK (~PTE_PFN_MASK) + #define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT) #define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1)) @@ -146,7 +149,7 @@ static inline pteval_t native_pte_val(pte_t pte) static inline pteval_t native_pte_flags(pte_t pte) { - return native_pte_val(pte) & ~PTE_PFN_MASK; + return native_pte_val(pte) & PTE_FLAGS_MASK; } #define pgprot_val(x) ((x).pgprot) |