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From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Russell King <linux@armlinux.org.uk>
Cc: Mike Rapoport <rppt@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH v2 2/2] ARM: dump: show page table level name
Date: Sun, 11 Sep 2022 12:41:28 +0800	[thread overview]
Message-ID: <20220911044128.138458-2-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20220911044128.138458-1-wangkefeng.wang@huawei.com>

ARM could have 3 page table level if ARM_LPAE enabled, or only 2 page
table level, let's show the page table level name when dump.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 arch/arm/mm/dump.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c
index 712da6a81b23..a71c2240e319 100644
--- a/arch/arm/mm/dump.c
+++ b/arch/arm/mm/dump.c
@@ -200,6 +200,7 @@ static const struct prot_bits section_bits[] = {
 };
 
 struct pg_level {
+	const char *name;
 	const struct prot_bits *bits;
 	size_t num;
 	u64 mask;
@@ -213,9 +214,11 @@ static struct pg_level pg_level[] = {
 	}, { /* p4d */
 	}, { /* pud */
 	}, { /* pmd */
+		.name	= (CONFIG_PGTABLE_LEVELS > 2) ? "PMD" : "PGD",
 		.bits	= section_bits,
 		.num	= ARRAY_SIZE(section_bits),
 	}, { /* pte */
+		.name	= "PTE",
 		.bits	= pte_bits,
 		.num	= ARRAY_SIZE(pte_bits),
 	},
@@ -282,7 +285,8 @@ static void note_page(struct pg_state *st, unsigned long addr,
 				delta >>= 10;
 				unit++;
 			}
-			pt_dump_seq_printf(st->seq, "%9lu%c", delta, *unit);
+			pt_dump_seq_printf(st->seq, "%9lu%c %s", delta, *unit,
+					   pg_level[st->level].name);
 			if (st->current_domain)
 				pt_dump_seq_printf(st->seq, " %s",
 							st->current_domain);
-- 
2.35.3


      reply	other threads:[~2022-09-11  4:37 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-11  4:41 [PATCH v2 1/2] ARM: ptdump: Fix wrong pg_level in walk_pmd() Kefeng Wang
2022-09-11  4:41 ` Kefeng Wang [this message]

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