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| author |   Christoffer Dall <christoffer.dall@linaro.org> | 2016-05-25 15:26:33 +0100 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2016-05-31 16:09:28 +0200 |
| commit | 4d3afc9bad2b67b118a0cc204dc94703f7a44e74 (patch) | |
| tree | 5ea0fcc6170249ccd1e69aa9eccb8f644de52f7a /virt | |
| parent | Linux 4.7-rc1 (diff) | |
| download | linux-dev-4d3afc9bad2b67b118a0cc204dc94703f7a44e74.tar.xz linux-dev-4d3afc9bad2b67b118a0cc204dc94703f7a44e74.zip | |
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.c | 7 |
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 a3f12b3b277b..3a3a699b7489 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)); } } |