diff options
Diffstat (limited to 'arch/x86/include/asm/pgtable-3level-defs.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable-3level-defs.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pgtable-3level-defs.h b/arch/x86/include/asm/pgtable-3level-defs.h new file mode 100644 index 000000000000..c05fe6ff3720 --- /dev/null +++ b/arch/x86/include/asm/pgtable-3level-defs.h @@ -0,0 +1,28 @@ +#ifndef ASM_X86__PGTABLE_3LEVEL_DEFS_H +#define ASM_X86__PGTABLE_3LEVEL_DEFS_H + +#ifdef CONFIG_PARAVIRT +#define SHARED_KERNEL_PMD (pv_info.shared_kernel_pmd) +#else +#define SHARED_KERNEL_PMD 1 +#endif + +/* + * PGDIR_SHIFT determines what a top-level page table entry can map + */ +#define PGDIR_SHIFT 30 +#define PTRS_PER_PGD 4 + +/* + * PMD_SHIFT determines the size of the area a middle-level + * page table can map + */ +#define PMD_SHIFT 21 +#define PTRS_PER_PMD 512 + +/* + * entries per page directory level + */ +#define PTRS_PER_PTE 512 + +#endif /* ASM_X86__PGTABLE_3LEVEL_DEFS_H */ |