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KVM: arm64: nv: Advertise FEAT_TIDCP1 to NV-enabled VMs

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While KVM does not expose IMPDEF features to VMs, FEAT_TIDCP1 is an
architecturally-defined EL1 trap of a particular sysreg encoding range.
Furthermore, KVM already advertises this feature to non-NV VMs.

As there is no interaction with EL2 traps, expose the feature.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Oliver Upton 2025-09-12 14:22:57 -07:00 committed by Marc Zyngier
parent fe2c9cd439
commit 6f2224ef07
1 changed files with 0 additions and 1 deletions
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arch/arm64/kvm/nested.c
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@ -1525,7 +1525,6 @@ u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val)
case SYS_ID_AA64MMFR1_EL1:
val &= ~(ID_AA64MMFR1_EL1_CMOW |
ID_AA64MMFR1_EL1_TIDCP1 |
ID_AA64MMFR1_EL1_nTLBPA |
ID_AA64MMFR1_EL1_ETS |
ID_AA64MMFR1_EL1_XNX |