linux/include/asm-i386/pgtable-3level-defs.h

29 lines
565 B
C

#ifndef _I386_PGTABLE_3LEVEL_DEFS_H
#define _I386_PGTABLE_3LEVEL_DEFS_H
#ifdef CONFIG_PARAVIRT
#define SHARED_KERNEL_PMD (paravirt_ops.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 /* _I386_PGTABLE_3LEVEL_DEFS_H */