Commit d4fbbb26 authored by Ryan Roberts's avatar Ryan Roberts Committed by Marc Zyngier
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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: default avatarCatalin Marinas <catalin.marinas@arm.com>
Reviewed-by: default avatarOliver Upton <oliver.upton@linux.dev>
Signed-off-by: default avatarRyan Roberts <ryan.roberts@arm.com>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231127111737.1897081-7-ryan.roberts@arm.com
parent b1366d21

arch/arm64/include/asm/kvm_arm.h

+2 −0
Original line number Diff line number Diff line
@@ -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)