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>,
Oliver Upton <oliver.upton@linux.dev>
Subject: [PATCH v2 13/27] KVM: arm64: Enable SCTLR2 when advertised to the guest
Date: Mon, 16 Jun 2025 16:02:54 -0700 [thread overview]
Message-ID: <20250616230308.1192565-14-oliver.upton@linux.dev> (raw)
In-Reply-To: <20250616230308.1192565-1-oliver.upton@linux.dev>
HCRX_EL2.SCTLR2En needs to be set for SCTLR2_EL1 to take effect in
hardware (in addition to disabling traps).
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
arch/arm64/include/asm/kvm_emulate.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index 3ac11effed7d..55ff05c7296d 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -727,6 +727,9 @@ static inline void vcpu_set_hcrx(struct kvm_vcpu *vcpu)
if (kvm_has_fpmr(kvm))
vcpu->arch.hcrx_el2 |= HCRX_EL2_EnFPM;
+
+ if (kvm_has_sctlr2(kvm))
+ vcpu->arch.hcrx_el2 |= HCRX_EL2_SCTLR2En;
}
}
#endif /* __ARM64_KVM_EMULATE_H__ */
--
2.39.5
next prev parent reply other threads:[~2025-06-16 23:05 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-16 23:02 [PATCH v2 00/27] KVM: arm64: SCTLR2, DoubleFault2, and NV external abort fixes Oliver Upton
2025-06-16 23:02 ` [PATCH v2 01/27] arm64: Detect FEAT_SCTLR2 Oliver Upton
2025-06-16 23:02 ` [PATCH v2 02/27] arm64: Detect FEAT_DoubleFault2 Oliver Upton
2025-06-16 23:02 ` [PATCH v2 03/27] KVM: arm64: Add helper to identify a nested context Oliver Upton
2025-06-16 23:02 ` [PATCH v2 04/27] KVM: arm64: Treat vCPU with pending SError as runnable Oliver Upton
2025-06-16 23:02 ` [PATCH v2 05/27] KVM: arm64: nv: Respect exception routing rules for SEAs Oliver Upton
2025-06-21 9:51 ` Marc Zyngier
2025-06-16 23:02 ` [PATCH v2 06/27] KVM: arm64: nv: Honor SError exception routing / masking Oliver Upton
2025-06-21 10:47 ` Marc Zyngier
2025-06-24 11:44 ` Oliver Upton
2025-06-16 23:02 ` [PATCH v2 07/27] KVM: arm64: nv: Add FEAT_RAS vSError sys regs to table Oliver Upton
2025-06-16 23:02 ` [PATCH v2 08/27] KVM: arm64: nv: Use guest hypervisor's vSError state Oliver Upton
2025-06-21 11:09 ` Marc Zyngier
2025-06-16 23:02 ` [PATCH v2 09/27] KVM: arm64: nv: Advertise support for FEAT_RAS Oliver Upton
2025-06-16 23:02 ` [PATCH v2 10/27] KVM: arm64: nv: Describe trap behavior of SCTLR2_EL1 Oliver Upton
2025-06-16 23:02 ` [PATCH v2 11/27] KVM: arm64: Wire up SCTLR2_ELx sysreg descriptors Oliver Upton
2025-06-16 23:02 ` [PATCH v2 12/27] KVM: arm64: Context switch SCTLR2_ELx when advertised to the guest Oliver Upton
2025-06-16 23:02 ` Oliver Upton [this message]
2025-06-16 23:02 ` [PATCH v2 14/27] KVM: arm64: Describe SCTLR2_ELx RESx masks Oliver Upton
2025-06-21 11:34 ` Marc Zyngier
2025-06-16 23:02 ` [PATCH v2 15/27] KVM: arm64: Factor out helper for selecting exception target EL Oliver Upton
2025-06-16 23:02 ` [PATCH v2 16/27] KVM: arm64: nv: Ensure Address size faults affect correct ESR Oliver Upton
2025-06-16 23:02 ` [PATCH v2 17/27] KVM: arm64: Route SEAs to the SError vector when EASE is set Oliver Upton
2025-06-21 11:54 ` Marc Zyngier
2025-06-24 8:12 ` Oliver Upton
2025-06-16 23:02 ` [PATCH v2 18/27] KVM: arm64: nv: Handle effects of HCRX_EL2.TMEA on SError injection Oliver Upton
2025-06-21 13:03 ` Marc Zyngier
2025-06-16 23:03 ` [PATCH v2 19/27] KVM: arm64: Take "masked" SEAs to EL2 when TMEA is set Oliver Upton
2025-06-22 8:39 ` Marc Zyngier
2025-06-16 23:03 ` [PATCH v2 20/27] KVM: arm64: nv: Enable vSErrors when HCRX_EL2.TMEA " Oliver Upton
2025-06-16 23:03 ` [PATCH v2 21/27] KVM: arm64: Advertise support for FEAT_SCTLR2 Oliver Upton
2025-06-16 23:03 ` [PATCH v2 22/27] KVM: arm64: Advertise support for FEAT_DoubleFault2 Oliver Upton
2025-06-16 23:03 ` [PATCH v2 23/27] KVM: arm64: Don't retire MMIO instruction w/ pending (emulated) SError Oliver Upton
2025-06-16 23:03 ` [PATCH v2 24/27] KVM: arm64: selftests: Add basic SError injection test Oliver Upton
2025-06-16 23:03 ` [PATCH v2 25/27] KVM: arm64: selftests: Test SEAs are taken to SError vector when EASE=1 Oliver Upton
2025-06-16 23:03 ` [PATCH v2 26/27] KVM: arm64: selftests: Add SCTLR2_EL1 to get-reg-list Oliver Upton
2025-06-16 23:03 ` [PATCH v2 27/27] KVM: arm64: selftests: Catch up set_id_regs with the kernel Oliver Upton
2025-06-22 9:25 ` [PATCH v2 00/27] KVM: arm64: SCTLR2, DoubleFault2, and NV external abort fixes Marc Zyngier
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