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30d621f6 SP |
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 { | |
f8f0d0b6 | 14 | /* level is 0:PGD to 4:PTE, or -1 if unknown */ |
30d621f6 | 15 | void (*note_page)(struct ptdump_state *st, unsigned long addr, |
99395ee3 | 16 | int level, u64 val); |
1494e0c3 | 17 | void (*effective_prot)(struct ptdump_state *st, int level, u64 val); |
30d621f6 SP |
18 | const struct ptdump_range *range; |
19 | }; | |
20 | ||
6cdc82db CL |
21 | bool ptdump_walk_pgd_level_core(struct seq_file *m, |
22 | struct mm_struct *mm, pgd_t *pgd, | |
23 | bool checkwx, bool dmesg); | |
e47690d7 | 24 | void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd); |
6cdc82db | 25 | bool ptdump_check_wx(void); |
a5e8131a CL |
26 | |
27 | static inline void debug_checkwx(void) | |
28 | { | |
29 | if (IS_ENABLED(CONFIG_DEBUG_WX)) | |
30 | ptdump_check_wx(); | |
31 | } | |
30d621f6 SP |
32 | |
33 | #endif /* _LINUX_PTDUMP_H */ |