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arm64/ptdump: Test both PTE_TABLE_BIT and PTE_VALID for block mappings

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Test both PTE_TABLE_BIT and PTE_VALID for block mappings, similar to KVM S2
ptdump. This ensures consistency in identifying block mappings, both in the
S1 and the S2 page tables. Besides being kernel page tables, there will not
be any unmapped (!PTE_VALID) block mappings.

Cc: Will Deacon <will@kernel.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20241105044154.4064181-1-anshuman.khandual@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Anshuman Khandual 2024-11-05 10:11:54 +05:30 committed by Catalin Marinas
parent baec239797
commit dc9b74a763
1 changed files with 4 additions and 4 deletions
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8
arch/arm64/mm/ptdump.c
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@ -80,10 +80,10 @@ static const struct ptdump_prot_bits pte_bits[] = {
.set = "CON",
.clear = " ",
}, {
.mask = PTE_TABLE_BIT,
.val = PTE_TABLE_BIT,
.set = " ",
.clear = "BLK",
.mask = PTE_TABLE_BIT | PTE_VALID,
.val = PTE_VALID,
.set = "BLK",
.clear = " ",
}, {
.mask = PTE_UXN,
.val = PTE_UXN,