Advertise bits [58:55] as reserved for SW in the S2 descriptors.

Signed-off-by: Marc Zyngier <m...@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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