diff options
Diffstat (limited to 'include/linux/ptdump.h')
| -rw-r--r-- | include/linux/ptdump.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/linux/ptdump.h b/include/linux/ptdump.h new file mode 100644 index 000000000000..240bd3bff18d --- /dev/null +++ b/include/linux/ptdump.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _LINUX_PTDUMP_H +#define _LINUX_PTDUMP_H + +#include <linux/mm_types.h> + +struct ptdump_range { + unsigned long start; + unsigned long end; +}; + +struct ptdump_state { + void (*note_page_pte)(struct ptdump_state *st, unsigned long addr, pte_t pte); + void (*note_page_pmd)(struct ptdump_state *st, unsigned long addr, pmd_t pmd); + void (*note_page_pud)(struct ptdump_state *st, unsigned long addr, pud_t pud); + void (*note_page_p4d)(struct ptdump_state *st, unsigned long addr, p4d_t p4d); + void (*note_page_pgd)(struct ptdump_state *st, unsigned long addr, pgd_t pgd); + void (*note_page_flush)(struct ptdump_state *st); + void (*effective_prot_pte)(struct ptdump_state *st, pte_t pte); + void (*effective_prot_pmd)(struct ptdump_state *st, pmd_t pmd); + void (*effective_prot_pud)(struct ptdump_state *st, pud_t pud); + void (*effective_prot_p4d)(struct ptdump_state *st, p4d_t p4d); + void (*effective_prot_pgd)(struct ptdump_state *st, pgd_t pgd); + const struct ptdump_range *range; +}; + +bool ptdump_walk_pgd_level_core(struct seq_file *m, + struct mm_struct *mm, pgd_t *pgd, + bool checkwx, bool dmesg); +void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd); +bool ptdump_check_wx(void); + +static inline void debug_checkwx(void) +{ + if (IS_ENABLED(CONFIG_DEBUG_WX)) + ptdump_check_wx(); +} + +#endif /* _LINUX_PTDUMP_H */ |