From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Oliver Upton <oliver.upton@linux.dev>,
Zenghui Yu <yuzenghui@huawei.com>,
Eric Auger <eric.auger@redhat.com>,
Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Subject: [PATCH v3 15/17] KVM: arm64: nv: Remove dead code from ERET handling
Date: Wed, 23 Apr 2025 16:15:06 +0100 [thread overview]
Message-ID: <20250423151508.2961768-16-maz@kernel.org> (raw)
In-Reply-To: <20250423151508.2961768-1-maz@kernel.org>
Cleanly, this code cannot trigger, since we filter this from the
caller. Drop it.
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/arm64/kvm/emulate-nested.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c
index 0fcfcc0478f94..5e9fec251684d 100644
--- a/arch/arm64/kvm/emulate-nested.c
+++ b/arch/arm64/kvm/emulate-nested.c
@@ -2471,13 +2471,6 @@ void kvm_emulate_nested_eret(struct kvm_vcpu *vcpu)
{
u64 spsr, elr, esr;
- /*
- * Forward this trap to the virtual EL2 if the virtual
- * HCR_EL2.NV bit is set and this is coming from !EL2.
- */
- if (forward_hcr_traps(vcpu, HCR_NV))
- return;
-
spsr = vcpu_read_sys_reg(vcpu, SPSR_EL2);
spsr = kvm_check_illegal_exception_return(vcpu, spsr);
--
2.39.2
next prev parent reply other threads:[~2025-04-23 17:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-23 15:14 [PATCH v3 00/17] KVM: arm64: Recursive NV support Marc Zyngier
2025-04-23 15:14 ` [PATCH v3 01/17] arm64: sysreg: Add layout for VNCR_EL2 Marc Zyngier
2025-04-23 15:14 ` [PATCH v3 02/17] KVM: arm64: nv: Allocate VNCR page when required Marc Zyngier
2025-05-09 10:11 ` Oliver Upton
2025-05-09 15:57 ` Marc Zyngier
2025-04-23 15:14 ` [PATCH v3 03/17] KVM: arm64: nv: Extract translation helper from the AT code Marc Zyngier
2025-04-23 15:14 ` [PATCH v3 04/17] KVM: arm64: nv: Snapshot S1 ASID tagging information during walk Marc Zyngier
2025-04-23 15:14 ` [PATCH v3 05/17] KVM: arm64: nv: Move TLBI range decoding to a helper Marc Zyngier
2025-04-23 15:14 ` [PATCH v3 06/17] KVM: arm64: nv: Don't adjust PSTATE.M when L2 is nesting Marc Zyngier
2025-04-23 15:14 ` [PATCH v3 07/17] KVM: arm64: nv: Add pseudo-TLB backing VNCR_EL2 Marc Zyngier
2025-04-23 15:14 ` [PATCH v3 08/17] KVM: arm64: nv: Add userspace and guest handling of VNCR_EL2 Marc Zyngier
2025-04-23 15:15 ` [PATCH v3 09/17] KVM: arm64: nv: Handle VNCR_EL2-triggered faults Marc Zyngier
2025-04-23 15:15 ` [PATCH v3 10/17] KVM: arm64: nv: Handle mapping of VNCR_EL2 at EL2 Marc Zyngier
2025-04-23 15:15 ` [PATCH v3 11/17] KVM: arm64: nv: Handle VNCR_EL2 invalidation from MMU notifiers Marc Zyngier
2025-04-23 15:15 ` [PATCH v3 12/17] KVM: arm64: nv: Program host's VNCR_EL2 to the fixmap address Marc Zyngier
2025-04-23 15:15 ` [PATCH v3 13/17] KVM: arm64: nv: Add S1 TLB invalidation primitive for VNCR_EL2 Marc Zyngier
2025-04-23 15:15 ` [PATCH v3 14/17] KVM: arm64: nv: Plumb TLBI S1E2 into system instruction dispatch Marc Zyngier
2025-04-23 15:15 ` Marc Zyngier [this message]
2025-04-23 15:15 ` [PATCH v3 16/17] KVM: arm64: Allow userspace to request KVM_ARM_VCPU_EL2* Marc Zyngier
2025-04-23 15:15 ` [PATCH v3 17/17] KVM: arm64: Document NV caps and vcpu flags Marc Zyngier
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