From 1166f3fe6a86798e4fcd24cefb6b06da3fd0420f Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Mon, 13 Jun 2016 15:00:46 +0100 Subject: [PATCH] arm64: Add PTE_HYP_XN page table flag EL2 page tables can be configured to deny code from being executed, which is done by setting bit 54 in the page descriptor. It is the same bit as PTE_UXN, but the "USER" reference felt odd in the hypervisor code. Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall --- arch/arm64/include/asm/pgtable-hwdef.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index 2813748e2f24..c3ae239db3ee 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -164,6 +164,7 @@ #define PTE_CONT (_AT(pteval_t, 1) << 52) /* Contiguous range */ #define PTE_PXN (_AT(pteval_t, 1) << 53) /* Privileged XN */ #define PTE_UXN (_AT(pteval_t, 1) << 54) /* User XN */ +#define PTE_HYP_XN (_AT(pteval_t, 1) << 54) /* HYP XN */ /* * AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers). -- 2.30.2