From: Pavel Tatashin <pasha.tatashin@soleen.com>
To: pasha.tatashin@soleen.com, jmorris@namei.org, sashal@kernel.org,
ebiederm@xmission.com, kexec@lists.infradead.org,
linux-kernel@vger.kernel.org, corbet@lwn.net,
catalin.marinas@arm.com, will@kernel.org,
linux-arm-kernel@lists.infradead.org, marc.zyngier@arm.com,
james.morse@arm.com, vladimir.murzin@arm.com,
matthias.bgg@gmail.com, bhsharma@redhat.com, linux-mm@kvack.org,
mark.rutland@arm.com
Subject: [PATCH v3 11/17] arm64, trans_pgd: add PUD_SECT_RDONLY
Date: Wed, 21 Aug 2019 14:31:58 -0400 [thread overview]
Message-ID: <20190821183204.23576-12-pasha.tatashin@soleen.com> (raw)
In-Reply-To: <20190821183204.23576-1-pasha.tatashin@soleen.com>
Thre is PMD_SECT_RDONLY that is used in pud_* function which is confusing.
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
---
arch/arm64/include/asm/pgtable-hwdef.h | 1 +
arch/arm64/mm/trans_pgd.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index db92950bb1a0..dcb4f13c7888 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -110,6 +110,7 @@
#define PUD_TABLE_BIT (_AT(pudval_t, 1) << 1)
#define PUD_TYPE_MASK (_AT(pudval_t, 3) << 0)
#define PUD_TYPE_SECT (_AT(pudval_t, 1) << 0)
+#define PUD_SECT_RDONLY (_AT(pudval_t, 1) << 7) /* AP[2] */
/*
* Level 2 descriptor (PMD).
diff --git a/arch/arm64/mm/trans_pgd.c b/arch/arm64/mm/trans_pgd.c
index 7d8734709b61..efd42509d069 100644
--- a/arch/arm64/mm/trans_pgd.c
+++ b/arch/arm64/mm/trans_pgd.c
@@ -138,7 +138,7 @@ static int copy_pud(pgd_t *dst_pgdp, pgd_t *src_pgdp, unsigned long start,
return -ENOMEM;
} else {
set_pud(dst_pudp,
- __pud(pud_val(pud) & ~PMD_SECT_RDONLY));
+ __pud(pud_val(pud) & ~PUD_SECT_RDONLY));
}
} while (dst_pudp++, src_pudp++, addr = next, addr != end);
--
2.23.0
next prev parent reply other threads:[~2019-08-21 18:32 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-21 18:31 [PATCH v3 00/17] arm64: MMU enabled kexec relocation Pavel Tatashin
2019-08-21 18:31 ` [PATCH v3 01/17] kexec: quiet down kexec reboot Pavel Tatashin
2019-09-06 15:17 ` James Morse
2019-09-06 15:35 ` Pavel Tatashin
2019-08-21 18:31 ` [PATCH v3 02/17] arm64, hibernate: use get_safe_page directly Pavel Tatashin
2019-09-06 15:17 ` James Morse
2019-09-06 15:39 ` Pavel Tatashin
2019-08-21 18:31 ` [PATCH v3 03/17] arm64, hibernate: remove gotos in create_safe_exec_page Pavel Tatashin
2019-09-06 15:17 ` James Morse
2019-09-06 15:41 ` Pavel Tatashin
2019-08-21 18:31 ` [PATCH v3 04/17] arm64, hibernate: rename dst to page " Pavel Tatashin
2019-09-06 15:17 ` James Morse
2019-09-06 15:41 ` Pavel Tatashin
2019-08-21 18:31 ` [PATCH v3 05/17] arm64, hibernate: check pgd table allocation Pavel Tatashin
2019-09-06 15:17 ` James Morse
2019-09-06 15:44 ` Pavel Tatashin
2019-08-21 18:31 ` [PATCH v3 06/17] arm64, hibernate: add trans_pgd public functions Pavel Tatashin
2019-09-06 15:18 ` James Morse
2019-09-06 16:00 ` Pavel Tatashin
2019-10-11 18:16 ` James Morse
2019-08-21 18:31 ` [PATCH v3 07/17] arm64, hibernate: move page handling function to new trans_pgd.c Pavel Tatashin
2019-09-06 15:18 ` James Morse
2019-09-06 17:41 ` Pavel Tatashin
2019-08-21 18:31 ` [PATCH v3 08/17] arm64, trans_pgd: make trans_pgd_map_page generic Pavel Tatashin
2019-09-06 15:20 ` James Morse
2019-09-06 18:58 ` Pavel Tatashin
2019-10-11 18:15 ` James Morse
2019-08-21 18:31 ` [PATCH v3 09/17] arm64, trans_pgd: add trans_pgd_create_empty Pavel Tatashin
2019-09-06 15:20 ` James Morse
2019-09-06 19:00 ` Pavel Tatashin
2019-08-21 18:31 ` [PATCH v3 10/17] arm64, trans_pgd: adjust trans_pgd_create_copy interface Pavel Tatashin
2019-09-06 15:20 ` James Morse
2019-09-06 19:03 ` Pavel Tatashin
2019-08-21 18:31 ` Pavel Tatashin [this message]
2019-09-06 15:21 ` [PATCH v3 11/17] arm64, trans_pgd: add PUD_SECT_RDONLY James Morse
2019-09-06 19:04 ` Pavel Tatashin
2019-08-21 18:31 ` [PATCH v3 12/17] arm64, trans_pgd: complete generalization of trans_pgds Pavel Tatashin
2019-09-06 15:23 ` James Morse
2019-09-06 19:06 ` Pavel Tatashin
2019-08-21 18:32 ` [PATCH v3 13/17] kexec: add machine_kexec_post_load() Pavel Tatashin
2019-08-21 18:32 ` [PATCH v3 14/17] arm64, kexec: move relocation function setup and clean up Pavel Tatashin
2019-08-21 18:32 ` [PATCH v3 15/17] arm64, kexec: add expandable argument to relocation function Pavel Tatashin
2019-08-21 18:32 ` [PATCH v3 16/17] arm64, kexec: configure trans_pgd page table for kexec Pavel Tatashin
2019-08-21 18:32 ` [PATCH v3 17/17] arm64, kexec: enable MMU during kexec relocation Pavel Tatashin
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