diff options
| -rw-r--r-- | arch/x86/mm/init_32.c | 5 | ||||
| -rw-r--r-- | include/asm-x86/pgtable-2level.h | 2 | ||||
| -rw-r--r-- | include/asm-x86/pgtable-3level.h | 14 | ||||
| -rw-r--r-- | include/asm-x86/pgtable.h | 14 | ||||
| -rw-r--r-- | include/asm-x86/pgtable_64.h | 18 |
5 files changed, 17 insertions, 36 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 29130970c193..04332c09ad1d 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -478,11 +478,12 @@ void zap_low_mappings (void) int nx_enabled = 0; +pteval_t __supported_pte_mask __read_mostly = ~_PAGE_NX; +EXPORT_SYMBOL_GPL(__supported_pte_mask); + #ifdef CONFIG_X86_PAE static int disable_nx __initdata = 0; -u64 __supported_pte_mask __read_mostly = ~_PAGE_NX; -EXPORT_SYMBOL_GPL(__supported_pte_mask); /* * noexec = on|off diff --git a/include/asm-x86/pgtable-2level.h b/include/asm-x86/pgtable-2level.h index 84b03cf56a79..d3171c0cb157 100644 --- a/include/asm-x86/pgtable-2level.h +++ b/include/asm-x86/pgtable-2level.h @@ -53,8 +53,6 @@ static inline pte_t native_ptep_get_and_clear(pte_t *xp) #define pte_page(x) pfn_to_page(pte_pfn(x)) #define pte_none(x) (!(x).pte_low) #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT) -#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) -#define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) /* * All present pages are kernel-executable: diff --git a/include/asm-x86/pgtable-3level.h b/include/asm-x86/pgtable-3level.h index 9816346f7df6..61a7d0029f60 100644 --- a/include/asm-x86/pgtable-3level.h +++ b/include/asm-x86/pgtable-3level.h @@ -158,20 +158,6 @@ static inline unsigned long pte_pfn(pte_t pte) return (pte_val(pte) & ~_PAGE_NX) >> PAGE_SHIFT; } -extern unsigned long long __supported_pte_mask; - -static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot) -{ - return __pte((((unsigned long long)page_nr << PAGE_SHIFT) | - pgprot_val(pgprot)) & __supported_pte_mask); -} - -static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot) -{ - return __pmd((((unsigned long long)page_nr << PAGE_SHIFT) | - pgprot_val(pgprot)) & __supported_pte_mask); -} - /* * Bits 0, 6 and 7 are taken in the low part of the pte, * put the 32 bits of offset into the high part. diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h index 4c03ff2246fd..b29a122fc1ff 100644 --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -141,6 +141,20 @@ static inline pte_t pte_mkwrite(pte_t pte) { return __pte(pte_val(pte) | _PAGE_R static inline pte_t pte_mkhuge(pte_t pte) { return __pte(pte_val(pte) | _PAGE_PSE); } static inline pte_t pte_clrhuge(pte_t pte) { return __pte(pte_val(pte) & ~_PAGE_PSE); } +extern pteval_t __supported_pte_mask; + +static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot) +{ + return __pte((((phys_addr_t)page_nr << PAGE_SHIFT) | + pgprot_val(pgprot)) & __supported_pte_mask); +} + +static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot) +{ + return __pmd((((phys_addr_t)page_nr << PAGE_SHIFT) | + pgprot_val(pgprot)) & __supported_pte_mask); +} + #endif /* __ASSEMBLY__ */ #ifdef CONFIG_X86_32 diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h index 84f47f9d7896..57e4ebe0f7fc 100644 --- a/include/asm-x86/pgtable_64.h +++ b/include/asm-x86/pgtable_64.h @@ -17,7 +17,6 @@ extern pud_t level3_kernel_pgt[512]; extern pud_t level3_ident_pgt[512]; extern pmd_t level2_kernel_pgt[512]; extern pgd_t init_level4_pgt[]; -extern unsigned long __supported_pte_mask; #define swapper_pg_dir init_level4_pgt @@ -165,14 +164,6 @@ static inline unsigned long pmd_bad(pmd_t pmd) #define pte_page(x) pfn_to_page(pte_pfn(x)) #define pte_pfn(x) ((pte_val(x) & __PHYSICAL_MASK) >> PAGE_SHIFT) -static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot) -{ - pte_t pte; - pte_val(pte) = (page_nr << PAGE_SHIFT); - pte_val(pte) |= pgprot_val(pgprot); - pte_val(pte) &= __supported_pte_mask; - return pte; -} struct vm_area_struct; static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) @@ -239,15 +230,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, /* page, protection -> pte */ #define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) -/* Change flags of a PTE */ -static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) -{ - pte_val(pte) &= _PAGE_CHG_MASK; - pte_val(pte) |= pgprot_val(newprot); - pte_val(pte) &= __supported_pte_mask; - return pte; -} - #define pte_index(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \ |