From d4fbbb26da520e00d87c8187dc3de9eacee66c1c Mon Sep 17 00:00:00 2001 From: Ryan Roberts Date: Mon, 27 Nov 2023 11:17:31 +0000 Subject: [PATCH] KVM: arm64: Add new (V)TCR_EL2 field definitions for FEAT_LPA2 As per Arm ARM (0487I.a), (V)TCR_EL2.DS fields control whether 52 bit input and output addresses are supported on 4K and 16K page size configurations when FEAT_LPA2 is known to have been implemented. This adds these field definitions which will be used by KVM when FEAT_LPA2 is enabled. Acked-by: Catalin Marinas Reviewed-by: Oliver Upton Signed-off-by: Ryan Roberts Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20231127111737.1897081-7-ryan.roberts@arm.com --- arch/arm64/include/asm/kvm_arm.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h index b85f46a73e21b..312cbc3008313 100644 --- a/arch/arm64/include/asm/kvm_arm.h +++ b/arch/arm64/include/asm/kvm_arm.h @@ -108,6 +108,7 @@ #define HCRX_HOST_FLAGS (HCRX_EL2_MSCEn | HCRX_EL2_TCR2En) /* TCR_EL2 Registers bits */ +#define TCR_EL2_DS (1UL << 32) #define TCR_EL2_RES1 ((1U << 31) | (1 << 23)) #define TCR_EL2_TBI (1 << 20) #define TCR_EL2_PS_SHIFT 16 @@ -122,6 +123,7 @@ TCR_EL2_ORGN0_MASK | TCR_EL2_IRGN0_MASK | TCR_EL2_T0SZ_MASK) /* VTCR_EL2 Registers bits */ +#define VTCR_EL2_DS TCR_EL2_DS #define VTCR_EL2_RES1 (1U << 31) #define VTCR_EL2_HD (1 << 22) #define VTCR_EL2_HA (1 << 21) -- 2.30.2