summaryrefslogtreecommitdiff
path: root/virt
diff options
context:
space:
mode:
authorChristoffer Dall <christoffer.dall@linaro.org>2016-05-25 15:26:33 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2016-05-31 16:09:28 +0200
commit4d3afc9bad2b67b118a0cc204dc94703f7a44e74 (patch)
tree5ea0fcc6170249ccd1e69aa9eccb8f644de52f7a /virt
parent1a695a905c18548062509178b98bc91e67510864 (diff)
downloadlinux-4d3afc9bad2b67b118a0cc204dc94703f7a44e74.tar.gz
linux-4d3afc9bad2b67b118a0cc204dc94703f7a44e74.tar.xz
KVM: arm/arm64: vgic-v2: Clear all dirty LRs
When saving the state of the list registers, it is critical to reset them zero, as we could otherwise leave unexpected EOI interrupts pending for virtual level interrupts. Cc: stable@vger.kernel.org # v4.6+ Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/arm/hyp/vgic-v2-sr.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/virt/kvm/arm/hyp/vgic-v2-sr.c b/virt/kvm/arm/hyp/vgic-v2-sr.c
index a3f12b3..3a3a699 100644
--- a/virt/kvm/arm/hyp/vgic-v2-sr.c
+++ b/virt/kvm/arm/hyp/vgic-v2-sr.c
@@ -100,12 +100,11 @@ static void __hyp_text save_lrs(struct kvm_vcpu *vcpu, void __iomem *base)
if (!(vcpu->arch.vgic_cpu.live_lrs & (1UL << i)))
continue;
- if (cpu_if->vgic_elrsr & (1UL << i)) {
+ if (cpu_if->vgic_elrsr & (1UL << i))
cpu_if->vgic_lr[i] &= ~GICH_LR_STATE;
- continue;
- }
+ else
+ cpu_if->vgic_lr[i] = readl_relaxed(base + GICH_LR0 + (i * 4));
- cpu_if->vgic_lr[i] = readl_relaxed(base + GICH_LR0 + (i * 4));
writel_relaxed(0, base + GICH_LR0 + (i * 4));
}
}