diff options
| author | Anshuman Khandual <anshuman.khandual@arm.com> | 2025-04-07 08:31:12 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-05-12 03:48:19 +0300 |
| commit | 08978fc3b0d5709583f6dc2072a8607d0b527860 (patch) | |
| tree | 47e3e83362b89d43f748c736206e4228f4efa41a /include/linux | |
| parent | e064e7384f991c7df81999cad4ce30fed7ef7d88 (diff) | |
| download | linux-08978fc3b0d5709583f6dc2072a8607d0b527860.tar.xz | |
mm/ptdump: split effective_prot() into level specific callbacks
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>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ptdump.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/ptdump.h b/include/linux/ptdump.h index 1c1eb1fae199..240bd3bff18d 100644 --- a/include/linux/ptdump.h +++ b/include/linux/ptdump.h @@ -17,7 +17,11 @@ struct ptdump_state { 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)(struct ptdump_state *st, int level, u64 val); + 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; }; |