From: Sebastian Ott <sebott@redhat.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Marc Zyngier <maz@kernel.org>, Oliver Upton <oliver.upton@linux.dev>
Subject: [PATCH 2/4] KVM: arm64: ensure guest access to CTR_EL0 is trapped
Date: Mon, 18 Mar 2024 12:16:34 +0100 [thread overview]
Message-ID: <20240318111636.10613-3-sebott@redhat.com> (raw)
In-Reply-To: <20240318111636.10613-1-sebott@redhat.com>
Ensure that guest access to the CTR_EL0 register is trapped
independent of cpu errata.
Signed-off-by: Sebastian Ott <sebott@redhat.com>
---
arch/arm64/include/asm/kvm_emulate.h | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index b804fe832184..daaaf7664219 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -91,12 +91,7 @@ static inline void vcpu_reset_hcr(struct kvm_vcpu *vcpu)
vcpu->arch.hcr_el2 |= HCR_TVM;
}
- if (cpus_have_final_cap(ARM64_HAS_EVT) &&
- !cpus_have_final_cap(ARM64_MISMATCHED_CACHE_TYPE))
- vcpu->arch.hcr_el2 |= HCR_TID4;
- else
- vcpu->arch.hcr_el2 |= HCR_TID2;
-
+ vcpu->arch.hcr_el2 |= HCR_TID2;
if (vcpu_el1_is_32bit(vcpu))
vcpu->arch.hcr_el2 &= ~HCR_RW;
--
2.42.0
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next prev parent reply other threads:[~2024-03-18 11:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-18 11:16 [RFC] [PATCH 0/4] KVM: arm64: emulation for CTR_EL0 Sebastian Ott
2024-03-18 11:16 ` [PATCH 1/4] KVM: arm64: add emulation for CTR_EL0 register Sebastian Ott
2024-03-18 11:45 ` Marc Zyngier
2024-03-18 11:16 ` Sebastian Ott [this message]
2024-03-18 11:47 ` [PATCH 2/4] KVM: arm64: ensure guest access to CTR_EL0 is trapped Marc Zyngier
2024-03-18 11:16 ` [PATCH 3/4] KVM: arm64: show writable masks for feature registers Sebastian Ott
2024-03-18 12:03 ` Marc Zyngier
2024-03-18 18:20 ` Sebastian Ott
2024-03-19 9:50 ` Marc Zyngier
2024-03-18 18:22 ` Sebastian Ott
2024-03-18 11:16 ` [PATCH 4/4] KVM: selftests: aarch64: add tool to dump registers Sebastian Ott
2024-03-18 15:24 ` [RFC] [PATCH 0/4] KVM: arm64: emulation for CTR_EL0 Marc Zyngier
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