[linux-2.6-block.git] / include / linux / ptdump.h

/* 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 {
	/* level is 0:PGD to 4:PTE, or -1 if unknown */
	void (*note_page)(struct ptdump_state *st, unsigned long addr,
			  int level, u64 val);
	void (*effective_prot)(struct ptdump_state *st, int level, u64 val);
	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 */
Commit	Line	Data
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
30d621f6 SP	33	#endif /* _LINUX_PTDUMP_H */