1 #ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
2 #define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
3 
4 #ifdef CONFIG_PARAVIRT
5 #define SHARED_KERNEL_PMD	(pv_info.shared_kernel_pmd)
6 #else
7 #define SHARED_KERNEL_PMD	1
8 #endif
9 
10 /*
11  * PGDIR_SHIFT determines what a top-level page table entry can map
12  */
13 #define PGDIR_SHIFT	30
14 #define PTRS_PER_PGD	4
15 
16 /*
17  * PMD_SHIFT determines the size of the area a middle-level
18  * page table can map
19  */
20 #define PMD_SHIFT	21
21 #define PTRS_PER_PMD	512
22 
23 /*
24  * entries per page directory level
25  */
26 #define PTRS_PER_PTE	512
27 
28 #endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */
29