diff options
Diffstat (limited to 'arch/x86/include/asm/pgtable_64.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable_64.h | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h index 4adba19c7bf6..acb6970e7bcf 100644 --- a/arch/x86/include/asm/pgtable_64.h +++ b/arch/x86/include/asm/pgtable_64.h @@ -132,41 +132,6 @@ static inline pud_t native_pudp_get_and_clear(pud_t *xp) #endif } -/* - * Page table pages are page-aligned. The lower half of the top - * level is used for userspace and the top half for the kernel. - * - * Returns true for parts of the PGD that map userspace and - * false for the parts that map the kernel. - */ -static inline bool pgdp_maps_userspace(void *__ptr) -{ - unsigned long ptr = (unsigned long)__ptr; - - return (ptr & ~PAGE_MASK) < (PAGE_SIZE / 2); -} - -#ifdef CONFIG_PAGE_TABLE_ISOLATION -pgd_t __pti_set_user_pgtbl(pgd_t *pgdp, pgd_t pgd); - -/* - * Take a PGD location (pgdp) and a pgd value that needs to be set there. - * Populates the user and returns the resulting PGD that must be set in - * the kernel copy of the page tables. - */ -static inline pgd_t pti_set_user_pgtbl(pgd_t *pgdp, pgd_t pgd) -{ - if (!static_cpu_has(X86_FEATURE_PTI)) - return pgd; - return __pti_set_user_pgtbl(pgdp, pgd); -} -#else -static inline pgd_t pti_set_user_pgtbl(pgd_t *pgdp, pgd_t pgd) -{ - return pgd; -} -#endif - static inline void native_set_p4d(p4d_t *p4dp, p4d_t p4d) { pgd_t pgd; @@ -206,7 +171,6 @@ extern void sync_global_pgds(unsigned long start, unsigned long end); /* * Level 4 access. */ -static inline int pgd_large(pgd_t pgd) { return 0; } #define mk_kernel_pgd(address) __pgd((address) | _KERNPG_TABLE) /* PUD - Level3 access */ |