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, unsigned long val); 17 const struct ptdump_range *range; 18 }; 19 20 void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm, pgd_t *pgd); 21 22 #endif /* _LINUX_PTDUMP_H */ 23