diff options
| author | Oliver Upton <oliver.upton@linux.dev> | 2025-09-12 14:22:57 -0700 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2025-09-19 14:01:35 +0100 |
| commit | 6f2224ef07437116ae9c46257b323306260074d1 (patch) | |
| tree | 2f661c27593f72fc5067595f4b9d0780ff086313 | |
| parent | fe2c9cd439e0f84a31b3610e2530663e5d1d3fa8 (diff) | |
KVM: arm64: nv: Advertise FEAT_TIDCP1 to NV-enabled VMs
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>
| -rw-r--r-- | arch/arm64/kvm/nested.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c index d3186f656d83..65b5fbb88510 100644 --- a/arch/arm64/kvm/nested.c +++ b/arch/arm64/kvm/nested.c @@ -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 | |