[PATCH v2 66/94] arm64: Add SW reserved PTE/PMD bits
From: Marc Zyngier <maz@kernel.org>
Date: 2020-02-11 17:58:04
Also in:
kvm, kvmarm
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Advertise bits [58:55] as reserved for SW in the S2 descriptors. Signed-off-by: Marc Zyngier <maz@kernel.org> --- arch/arm64/include/asm/pgtable-hwdef.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index 6bf5e650da78..7eab0d23cdb5 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h@@ -177,10 +177,12 @@ #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] */
--
2.20.1
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