[PATCH v3 11/17] arm64, trans_pgd: add PUD_SECT_RDONLY
flat view
STALE2558d
SUPERSEDED
From: Pavel Tatashin <pasha.tatashin@soleen.com>
Date: 2019-08-21 18:32:27
Also in:
kexec, linux-mm, lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Revision v3 of 16 in this series.
Revisions (16)
- v2 [diff vs current]
- v3 current
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- v17 [diff vs current]
- v18 [diff vs current]
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
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