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UPSTREAM: KVM: arm64: Handle access to TRFCR_EL1

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

Bug: 174685394
Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210405164307.1720226-6-suzuki.poulose@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
(cherry picked from commit cc427cbb15375f1229e78908064cdff98138b8b1)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: If0efe01af21894ed29cb85338f802ac1f6a194fc
This commit is contained in:
Suzuki K Poulose 2021-04-05 17:42:52 +01:00 committed by Todd Kjos
parent ee682ec766
commit dde40c1089
1 changed files with 1 additions and 0 deletions
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arch/arm64/kvm/sys_regs.c
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@ -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 },