Commit b1319c0e authored by Kristina Martsenko's avatar Kristina Martsenko Committed by Catalin Marinas
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arm64: mops: don't disable host MOPS instructions from EL2 



To allow nVHE host EL0 and EL1 to use FEAT_MOPS instructions, configure
EL2 to not cause these instructions to be treated as UNDEFINED. A VHE
host is unaffected by this control.

Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarKristina Martsenko <kristina.martsenko@arm.com>
Link: https://lore.kernel.org/r/20230509142235.3284028-6-kristina.martsenko@arm.com


Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent f32c053b

arch/arm64/include/asm/kvm_arm.h

+1 −1
Original line number Diff line number Diff line
@@ -94,7 +94,7 @@ 
#define HCR_HOST_VHE_FLAGS (HCR_RW | HCR_TGE | HCR_E2H)



#define HCRX_GUEST_FLAGS (HCRX_EL2_SMPME)

#define HCRX_HOST_FLAGS 0

#define HCRX_HOST_FLAGS (HCRX_EL2_MSCEn)



/* TCR_EL2 Registers bits */

#define TCR_EL2_RES1		((1U << 31) | (1 << 23))