mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-10-28 12:53:14 +01:00
Anshuman Khandual
08978fc3b0
Last argument in effective_prot() is u64 assuming pxd_val() returned value (all page table levels) is 64 bit. pxd_val() is very platform specific and its type should not be assumed in generic MM. Split effective_prot() into individual page table level specific callbacks which accepts corresponding pxd_t argument instead and then the subscribing platform (only x86) just derive pxd_val() from the entries as required and proceed as earlier. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Anshuman Khandual <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Ard Biesheuvel <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Gerald Schaefer <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Madhavan Srinivasan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Nicholas Piggin <[email protected]> Cc: Ryan Roberts <[email protected]> Cc: Will Deacon <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/* 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 */
|