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Commit6fcfdf6

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author
Marc Zyngier
committed
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>
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‎arch/arm64/include/asm/pgtable-hwdef.h‎

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Original file line numberDiff line numberDiff line change
@@ -178,10 +178,12 @@
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#definePTE_S2_RDONLY(_AT(pteval_t, 1) << 6)/* HAP[2:1] */
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#definePTE_S2_RDWR(_AT(pteval_t, 3) << 6)/* HAP[2:1] */
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#definePTE_S2_XN(_AT(pteval_t, 2) << 53)/* XN[1:0] */
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#definePTE_S2_SW_RESVD(_AT(pteval_t, 15) << 55)/* Reserved for SW */
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#definePMD_S2_RDONLY(_AT(pmdval_t, 1) << 6)/* HAP[2:1] */
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#definePMD_S2_RDWR(_AT(pmdval_t, 3) << 6)/* HAP[2:1] */
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#definePMD_S2_XN(_AT(pmdval_t, 2) << 53)/* XN[1:0] */
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#definePMD_S2_SW_RESVD(_AT(pmdval_t, 15) << 55)/* Reserved for SW */
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#definePUD_S2_RDONLY(_AT(pudval_t, 1) << 6)/* HAP[2:1] */
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#definePUD_S2_RDWR(_AT(pudval_t, 3) << 6)/* HAP[2:1] */

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