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| author | Marc Zyngier <maz@kernel.org> | 2018-12-28 09:11:50 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-07-07 09:27:15 +0100 |
| commit | 6fcfdf6d72898d1c5118d7dd3d3d38690e2f6a64 (patch) | |
| tree | 12306babedc327b4bbabf1e56418aa2fe72ff0f0 /arch/arm64 | |
| parent | 552ae76face5584085845646c5f57e10c1a4ebdc (diff) | |
| download | linux-6fcfdf6d72898d1c5118d7dd3d3d38690e2f6a64.tar.bz2 | |
arm64: Document SW reserved PTE/PMD bits in Stage-2 descriptors
Advertise bits [58:55] as reserved for SW in the S2 descriptors.
Reviewed-by: Andrew Scull <ascull@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/pgtable-hwdef.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index 9c91a8f93a0e..de0b603955f4 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -178,10 +178,12 @@ #define PTE_S2_RDONLY (_AT(pteval_t, 1) << 6) /* HAP[2:1] */ #define PTE_S2_RDWR (_AT(pteval_t, 3) << 6) /* HAP[2:1] */ #define PTE_S2_XN (_AT(pteval_t, 2) << 53) /* XN[1:0] */ +#define PTE_S2_SW_RESVD (_AT(pteval_t, 15) << 55) /* Reserved for SW */ #define PMD_S2_RDONLY (_AT(pmdval_t, 1) << 6) /* HAP[2:1] */ #define PMD_S2_RDWR (_AT(pmdval_t, 3) << 6) /* HAP[2:1] */ #define PMD_S2_XN (_AT(pmdval_t, 2) << 53) /* XN[1:0] */ +#define PMD_S2_SW_RESVD (_AT(pmdval_t, 15) << 55) /* Reserved for SW */ #define PUD_S2_RDONLY (_AT(pudval_t, 1) << 6) /* HAP[2:1] */ #define PUD_S2_RDWR (_AT(pudval_t, 3) << 6) /* HAP[2:1] */ |