From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Eric Auger <eric.auger@redhat.com>,
Christoffer Dall <christoffer.dall@arm.com>,
kernel-team@android.com
Subject: [PATCH 3/5] KVM: arm64: vgic-v3: Don't advertise ICC_CTLR_EL1.SEIS
Date: Fri, 24 Sep 2021 09:25:40 +0100 [thread overview]
Message-ID: <20210924082542.2766170-4-maz@kernel.org> (raw)
In-Reply-To: <20210924082542.2766170-1-maz@kernel.org>
Since we are trapping all sysreg accesses when ICH_VTR_EL2.SEIS
is set, and that we never deliver an SError when emulating
any of the GICv3 sysregs, don't advertise ICC_CTLR_EL1.SEIS.
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/arm64/kvm/hyp/vgic-v3-sr.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/arm64/kvm/hyp/vgic-v3-sr.c b/arch/arm64/kvm/hyp/vgic-v3-sr.c
index 39f8f7f9227c..b3b50de496a3 100644
--- a/arch/arm64/kvm/hyp/vgic-v3-sr.c
+++ b/arch/arm64/kvm/hyp/vgic-v3-sr.c
@@ -987,8 +987,6 @@ static void __vgic_v3_read_ctlr(struct kvm_vcpu *vcpu, u32 vmcr, int rt)
val = ((vtr >> 29) & 7) << ICC_CTLR_EL1_PRI_BITS_SHIFT;
/* IDbits */
val |= ((vtr >> 23) & 7) << ICC_CTLR_EL1_ID_BITS_SHIFT;
- /* SEIS */
- val |= ((vtr >> 22) & 1) << ICC_CTLR_EL1_SEIS_SHIFT;
/* A3V */
val |= ((vtr >> 21) & 1) << ICC_CTLR_EL1_A3V_SHIFT;
/* EOImode */
--
2.30.2
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next prev parent reply other threads:[~2021-09-24 8:28 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-24 8:25 [PATCH 0/5] KVM: arm64: Assorted vgic-v3 fixes Marc Zyngier
2021-09-24 8:25 ` [PATCH 1/5] KVM: arm64: Force ID_AA64PFR0_EL1.GIC=1 when exposing a virtual GICv3 Marc Zyngier
2021-09-29 15:29 ` Alexandru Elisei
2021-09-29 16:04 ` Marc Zyngier
2021-09-30 9:48 ` Alexandru Elisei
2021-09-24 8:25 ` [PATCH 2/5] KVM: arm64: Work around GICv3 locally generated SErrors Marc Zyngier
2021-10-01 21:43 ` Joey Gouly
2021-10-04 11:23 ` Alexandru Elisei
2021-10-04 13:25 ` Marc Zyngier
2021-09-24 8:25 ` Marc Zyngier [this message]
2021-10-04 12:49 ` [PATCH 3/5] KVM: arm64: vgic-v3: Don't advertise ICC_CTLR_EL1.SEIS Alexandru Elisei
2021-09-24 8:25 ` [PATCH 4/5] KVM: arm64: vgic-v3: Don't propagate LPI active state from LRs into the distributor Marc Zyngier
2021-09-24 8:25 ` [PATCH 5/5] KVM: arm64: vgic-v3: Align emulated cpuif LPI state machine with the pseudocode Marc Zyngier
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