Commit cc427cbb authored by Suzuki K Poulose's avatar Suzuki K Poulose Committed by Mathieu Poirier
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KVM: arm64: Handle access to TRFCR_EL1 



Rather than falling to an "unhandled access", inject add an explicit
"undefined access" for TRFCR_EL1 access from the guest.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210405164307.1720226-6-suzuki.poulose@arm.com


Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
parent 3f9b72f6

arch/arm64/kvm/sys_regs.c

+1 −0
Original line number Diff line number Diff line
@@ -1472,6 +1472,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { 
	{ SYS_DESC(SYS_GCR_EL1), undef_access },



	{ SYS_DESC(SYS_ZCR_EL1), NULL, reset_val, ZCR_EL1, 0, .visibility = sve_visibility },

	{ SYS_DESC(SYS_TRFCR_EL1), undef_access },

	{ SYS_DESC(SYS_TTBR0_EL1), access_vm_reg, reset_unknown, TTBR0_EL1 },

	{ SYS_DESC(SYS_TTBR1_EL1), access_vm_reg, reset_unknown, TTBR1_EL1 },

	{ SYS_DESC(SYS_TCR_EL1), access_vm_reg, reset_val, TCR_EL1, 0 },