1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | |
3 | #ifndef _LINUX_PTDUMP_H |
4 | #define _LINUX_PTDUMP_H |
5 | |
6 | #include <linux/mm_types.h> |
7 | |
8 | struct ptdump_range { |
9 | unsigned long start; |
10 | unsigned long end; |
11 | }; |
12 | |
13 | struct ptdump_state { |
14 | /* level is 0:PGD to 4:PTE, or -1 if unknown */ |
15 | void (*note_page)(struct ptdump_state *st, unsigned long addr, |
16 | int level, u64 val); |
17 | void (*effective_prot)(struct ptdump_state *st, int level, u64 val); |
18 | const struct ptdump_range *range; |
19 | }; |
20 | |
21 | bool ptdump_walk_pgd_level_core(struct seq_file *m, |
22 | struct mm_struct *mm, pgd_t *pgd, |
23 | bool checkwx, bool dmesg); |
24 | void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd); |
25 | bool ptdump_check_wx(void); |
26 | |
27 | static inline void debug_checkwx(void) |
28 | { |
29 | if (IS_ENABLED(CONFIG_DEBUG_WX)) |
30 | ptdump_check_wx(); |
31 | } |
32 | |
33 | #endif /* _LINUX_PTDUMP_H */ |
34 | |