From: Oliver Upton <oupton@kernel.org>
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>,
Wei-Lin Chang <weilin.chang@arm.com>,
Steffen Eiden <seiden@linux.ibm.com>,
Oliver Upton <oupton@kernel.org>
Subject: [PATCH 19/22] KVM: arm64: nv: Expose FEAT_HAFT
Date: Tue, 23 Jun 2026 11:41:58 -0700 [thread overview]
Message-ID: <20260623184201.1518871-20-oupton@kernel.org> (raw)
In-Reply-To: <20260623184201.1518871-1-oupton@kernel.org>
Both stages of translation now support the access flag on table
descriptors, advertise the feature.
Signed-off-by: Oliver Upton <oupton@kernel.org>
---
arch/arm64/kvm/nested.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
index 6f540d3481d5..dc2a8b6483c2 100644
--- a/arch/arm64/kvm/nested.c
+++ b/arch/arm64/kvm/nested.c
@@ -1799,7 +1799,7 @@ u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val)
if (test_bit(KVM_ARM_VCPU_HAS_EL2_E2H0, kvm->arch.vcpu_features))
val &= ~ID_AA64MMFR1_EL1_VH;
- val = ID_REG_LIMIT_FIELD_ENUM(val, ID_AA64MMFR1_EL1, HAFDBS, DBM);
+ val = ID_REG_LIMIT_FIELD_ENUM(val, ID_AA64MMFR1_EL1, HAFDBS, HAFT);
break;
case SYS_ID_AA64MMFR2_EL1:
--
2.47.3
next prev parent reply other threads:[~2026-06-23 18:42 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-23 18:41 [PATCH 00/22] KVM: arm64: nv: Implement FEAT_HAFDBS, FEAT_HAFT Oliver Upton
2026-06-23 18:41 ` [PATCH 01/22] KVM: arm64: nv: Introduce struct for stage-2 walk step Oliver Upton
2026-06-23 18:41 ` [PATCH 02/22] KVM: arm64: nv: Consolidate computation of stage-2 permissions Oliver Upton
2026-06-23 18:57 ` sashiko-bot
2026-06-23 18:41 ` [PATCH 03/22] KVM: arm64: nv: Get rid of kvm_s2_trans*() accessors Oliver Upton
2026-06-23 18:41 ` [PATCH 04/22] KVM: arm64: nv: Only shadow writable-dirty guest descs as writable Oliver Upton
2026-06-23 18:58 ` sashiko-bot
2026-06-23 20:05 ` Oliver Upton
2026-06-23 18:41 ` [PATCH 05/22] KVM: arm64: nv: Pass an access descriptor for stage-2 walks Oliver Upton
2026-06-23 19:06 ` sashiko-bot
2026-06-23 18:41 ` [PATCH 06/22] KVM: arm64: nv: Use a helper for stage-2 descriptor updates Oliver Upton
2026-06-23 18:41 ` [PATCH 07/22] KVM: arm64: nv: Set dirty state at stage-2 Oliver Upton
2026-06-23 19:03 ` sashiko-bot
2026-07-06 16:50 ` Wei-Lin Chang
2026-07-08 7:35 ` Oliver Upton
2026-06-23 18:41 ` [PATCH 08/22] KVM: arm64: nv: Treat DBM as writable " Oliver Upton
2026-06-23 18:55 ` sashiko-bot
2026-06-23 20:08 ` Oliver Upton
2026-06-23 18:41 ` [PATCH 09/22] KVM: arm64: Compute S1 permissions as part of s1_walk() Oliver Upton
2026-06-23 18:41 ` [PATCH 10/22] KVM: arm64: Plumb through access descriptor for stage-1 Oliver Upton
2026-06-23 18:41 ` [PATCH 11/22] KVM: arm64: Use a struct for stage-1 walk context Oliver Upton
2026-06-23 18:41 ` [PATCH 12/22] KVM: arm64: Create helper for stage-1 descriptor updates Oliver Upton
2026-06-23 18:55 ` sashiko-bot
2026-06-23 18:41 ` [PATCH 13/22] KVM: arm64: Set dirty state at stage-1 Oliver Upton
2026-06-23 18:54 ` sashiko-bot
2026-06-26 15:49 ` Leonardo Bras
2026-06-26 16:03 ` Marc Zyngier
2026-06-29 10:38 ` Leonardo Bras
2026-06-26 17:35 ` Oliver Upton
2026-06-29 10:39 ` Leonardo Bras
2026-06-23 18:41 ` [PATCH 14/22] KVM: arm64: Grant write permission when DBM is set at S1 Oliver Upton
2026-06-23 18:57 ` sashiko-bot
2026-06-23 18:41 ` [PATCH 15/22] KVM: arm64: Don't update descriptors for "non-arch" access Oliver Upton
2026-06-23 18:41 ` [PATCH 16/22] KVM: arm64: nv: Expose FEAT_HAFDBS Oliver Upton
2026-06-23 19:01 ` sashiko-bot
2026-06-23 18:41 ` [PATCH 17/22] KVM: arm64: Set Access flag on table descriptors at stage-1 Oliver Upton
2026-06-23 20:56 ` sashiko-bot
2026-06-23 18:41 ` [PATCH 18/22] KVM: arm64: nv: Set access flag on table descriptors at stage-2 Oliver Upton
2026-06-23 19:05 ` sashiko-bot
2026-06-23 20:14 ` Oliver Upton
2026-06-23 18:41 ` Oliver Upton [this message]
2026-06-23 19:05 ` [PATCH 19/22] KVM: arm64: nv: Expose FEAT_HAFT sashiko-bot
2026-06-23 18:41 ` [PATCH 20/22] KVM: arm64: selftests: Only test AF behavior for emulated AT insns Oliver Upton
2026-06-23 18:42 ` [PATCH 21/22] KVM: arm64: selftests: Test AT emulation for FEAT_HAFT Oliver Upton
2026-06-23 19:05 ` sashiko-bot
2026-06-23 20:17 ` Oliver Upton
2026-06-23 18:42 ` [PATCH 22/22] HACK: KVM: arm64: nv: Set the dirty state for CMOs that fetch for write Oliver Upton
2026-07-01 10:16 ` Wei-Lin Chang
2026-07-01 17:33 ` Oliver Upton
2026-07-02 6:50 ` Wei-Lin Chang
2026-06-26 15:31 ` [PATCH 00/22] KVM: arm64: nv: Implement FEAT_HAFDBS, FEAT_HAFT Leonardo Bras
2026-06-26 17:12 ` Marc Zyngier
2026-06-26 17:45 ` Oliver Upton
2026-06-29 10:37 ` Leonardo Bras
2026-06-29 10:29 ` Leonardo Bras
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