mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-27 06:50:37 +00:00
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/20250407053113.746295-3-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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 */
|