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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
3#define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
4
5#ifndef __ASSEMBLY__
6#include <linux/types.h>
7
8typedef u64 pteval_t;
9typedef u64 pmdval_t;
10typedef u64 pudval_t;
11typedef u64 p4dval_t;
12typedef u64 pgdval_t;
13typedef u64 pgprotval_t;
14
15typedef union {
16 struct {
17 unsigned long pte_low, pte_high;
18 };
19 pteval_t pte;
20} pte_t;
21#endif /* !__ASSEMBLY__ */
22
23#ifdef CONFIG_PARAVIRT_XXL
24#define SHARED_KERNEL_PMD ((!static_cpu_has(X86_FEATURE_PTI) && \
25 (pv_info.shared_kernel_pmd)))
26#else
27#define SHARED_KERNEL_PMD (!static_cpu_has(X86_FEATURE_PTI))
28#endif
29
30/*
31 * PGDIR_SHIFT determines what a top-level page table entry can map
32 */
33#define PGDIR_SHIFT 30
34#define PTRS_PER_PGD 4
35
36/*
37 * PMD_SHIFT determines the size of the area a middle-level
38 * page table can map
39 */
40#define PMD_SHIFT 21
41#define PTRS_PER_PMD 512
42
43/*
44 * entries per page directory level
45 */
46#define PTRS_PER_PTE 512
47
48#define MAX_POSSIBLE_PHYSMEM_BITS 36
49#define PGD_KERNEL_START (CONFIG_PAGE_OFFSET >> PGDIR_SHIFT)
50
51#endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */
52

Warning: That file was not part of the compilation database. It may have many parsing errors.