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 8struct ptdump_range { 9 unsigned long start; 10 unsigned long end; 11}; 12 13struct 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 21bool ptdump_walk_pgd_level_core(struct seq_file *m, 22 struct mm_struct *mm, pgd_t *pgd, 23 bool checkwx, bool dmesg); 24void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd); 25bool ptdump_check_wx(void); 26 27static 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