48 lines
870 B
C
48 lines
870 B
C
|
#ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
|
||
|
#define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
|
||
|
|
||
|
#ifndef __ASSEMBLY__
|
||
|
#include <linux/types.h>
|
||
|
|
||
|
typedef u64 pteval_t;
|
||
|
typedef u64 pmdval_t;
|
||
|
typedef u64 pudval_t;
|
||
|
typedef u64 p4dval_t;
|
||
|
typedef u64 pgdval_t;
|
||
|
typedef u64 pgprotval_t;
|
||
|
|
||
|
typedef union {
|
||
|
struct {
|
||
|
unsigned long pte_low, pte_high;
|
||
|
};
|
||
|
pteval_t pte;
|
||
|
} pte_t;
|
||
|
#endif /* !__ASSEMBLY__ */
|
||
|
|
||
|
#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 */
|