From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.linux.dev
Cc: Marc Zyngier <maz@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Jinqian Yang <yangjinqian1@huawei.com>,
Oliver Upton <oliver.upton@linux.dev>
Subject: [PATCH 03/11] KVM: arm64: nv: Expose FEAT_DF2 to NV-enabled VMs
Date: Fri, 12 Sep 2025 14:22:50 -0700 [thread overview]
Message-ID: <20250912212258.407350-4-oliver.upton@linux.dev> (raw)
In-Reply-To: <20250912212258.407350-1-oliver.upton@linux.dev>
The supporting infrastructure in KVM's abort injection code was merged a
while ago, but the author (me!) forgot to relax the NV limitation when
FEAT_DF2 got exposed to non-NV VMs. Fix it.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
arch/arm64/kvm/nested.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
index 4044dc66fa39..5e46e95e2684 100644
--- a/arch/arm64/kvm/nested.c
+++ b/arch/arm64/kvm/nested.c
@@ -1463,7 +1463,6 @@ u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val)
case SYS_ID_AA64PFR1_EL1:
/* Only support BTI, SSBS, CSV2_frac */
val &= ~(ID_AA64PFR1_EL1_PFAR |
- ID_AA64PFR1_EL1_DF2 |
ID_AA64PFR1_EL1_MTEX |
ID_AA64PFR1_EL1_THE |
ID_AA64PFR1_EL1_GCS |
--
2.39.5
next prev parent reply other threads:[~2025-09-12 21:23 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-12 21:22 [PATCH 00/11] KVM: arm64: nv: Align feature limitations with current state of support Oliver Upton
2025-09-12 21:22 ` [PATCH 01/11] KVM: arm64: nv: Convert masks to denylists in limit_nv_id_reg() Oliver Upton
2025-09-12 21:22 ` [PATCH 02/11] KVM: arm64: nv: Don't erroneously claim FEAT_DoubleLock for NV VMs Oliver Upton
2025-09-12 21:22 ` Oliver Upton [this message]
2025-09-12 21:22 ` [PATCH 04/11] KVM: arm64: nv: Expose FEAT_RASv1p1 via RAS_frac Oliver Upton
2025-09-12 21:22 ` [PATCH 05/11] KVM: arm64: nv: Expose FEAT_ECBHB to NV-enabled VMs Oliver Upton
2025-09-12 21:22 ` [PATCH 06/11] KVM: arm64: nv: Expose FEAT_AFP " Oliver Upton
2025-09-12 21:22 ` [PATCH 07/11] KVM: arm64: nv: Exclude guest's TWED configuration when TWE isn't set Oliver Upton
2025-09-12 21:22 ` [PATCH 08/11] KVM: arm64: nv: Expose FEAT_TWED to NV-enabled VMs Oliver Upton
2025-09-12 21:22 ` [PATCH 09/11] KVM: arm64: nv: Advertise FEAT_SpecSEI " Oliver Upton
2025-09-12 21:22 ` [PATCH 10/11] KVM: arm64: nv: Advertise FEAT_TIDCP1 " Oliver Upton
2025-09-12 21:22 ` [PATCH 11/11] KVM: arm64: nv: Expose up to FEAT_Debugv8p8 " Oliver Upton
2025-09-12 21:43 ` [PATCH 00/11] KVM: arm64: nv: Align feature limitations with current state of support Marc Zyngier
2025-09-12 21:48 ` Oliver Upton
2025-09-19 13:15 ` Marc Zyngier
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