| 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 | void (*note_page_pte)(struct ptdump_state *st, unsigned long addr, pte_t pte); |
| 15 | void (*note_page_pmd)(struct ptdump_state *st, unsigned long addr, pmd_t pmd); |
| 16 | void (*note_page_pud)(struct ptdump_state *st, unsigned long addr, pud_t pud); |
| 17 | void (*note_page_p4d)(struct ptdump_state *st, unsigned long addr, p4d_t p4d); |
| 18 | void (*note_page_pgd)(struct ptdump_state *st, unsigned long addr, pgd_t pgd); |
| 19 | void (*note_page_flush)(struct ptdump_state *st); |
| 20 | void (*effective_prot_pte)(struct ptdump_state *st, pte_t pte); |
| 21 | void (*effective_prot_pmd)(struct ptdump_state *st, pmd_t pmd); |
| 22 | void (*effective_prot_pud)(struct ptdump_state *st, pud_t pud); |
| 23 | void (*effective_prot_p4d)(struct ptdump_state *st, p4d_t p4d); |
| 24 | void (*effective_prot_pgd)(struct ptdump_state *st, pgd_t pgd); |
| 25 | const struct ptdump_range *range; |
| 26 | }; |
| 27 | |
| 28 | bool ptdump_walk_pgd_level_core(struct seq_file *m, |
| 29 | struct mm_struct *mm, pgd_t *pgd, |
| 30 | bool checkwx, bool dmesg); |
| 31 | void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd); |
| 32 | bool ptdump_check_wx(void); |
| 33 | |
| 34 | static inline void debug_checkwx(void) |
| 35 | { |
| 36 | if (IS_ENABLED(CONFIG_DEBUG_WX)) |
| 37 | ptdump_check_wx(); |
| 38 | } |
| 39 | |
| 40 | #endif /* _LINUX_PTDUMP_H */ |
| 41 | |