linux-kernel - [PATCH V2 2/8] arm64/ptdump: Test PMD_TYPE

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Message-Id: <20250221044227.1145393-3-anshuman.khandual@arm.com>
Date: Fri, 21 Feb 2025 10:12:21 +0530
From: Anshuman Khandual <anshuman.khandual@....com>
To: arm-kernel@...ts.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@....com>,
	Marc Zyngier <maz@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	James Morse <james.morse@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Ard Biesheuvel <ardb@...nel.org>,
	Ryan Roberts <ryan.roberts@....com>,
	Mark Rutland <mark.rutland@....com>,
	kvmarm@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH V2 2/8] arm64/ptdump: Test PMD_TYPE_MASK for block mapping

Test given page table entries against PMD_TYPE_SECT on PMD_TYPE_MASK mask
bits for identifying block mappings in stage 1 page tables.

Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will@...nel.org>
Cc: Ard Biesheuvel <ardb@...nel.org>
Cc: Ryan Roberts <ryan.roberts@....com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
---
 arch/arm64/mm/ptdump.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/mm/ptdump.c b/arch/arm64/mm/ptdump.c
index 688fbe0271ca..8cec0da4cff2 100644
--- a/arch/arm64/mm/ptdump.c
+++ b/arch/arm64/mm/ptdump.c
@@ -80,8 +80,8 @@ static const struct ptdump_prot_bits pte_bits[] = {
 		.set	= "CON",
 		.clear	= "   ",
 	}, {
-		.mask	= PTE_TABLE_BIT | PTE_VALID,
-		.val	= PTE_VALID,
+		.mask	= PMD_TYPE_MASK,
+		.val	= PMD_TYPE_SECT,
 		.set	= "BLK",
 		.clear	= "   ",
 	}, {
-- 
2.25.1