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KVM: arm/arm64: vgic-v3: Clear all dirty LRs

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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>
This commit is contained in:
Christoffer Dall 2016-05-25 15:26:34 +01:00
parent 4d3afc9bad
commit fa89c77e89
1 changed files with 3 additions and 4 deletions
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7
arch/arm64/kvm/hyp/vgic-v3-sr.c
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@ -190,12 +190,11 @@ void __hyp_text __vgic_v3_save_state(struct kvm_vcpu *vcpu)
if (!(vcpu->arch.vgic_cpu.live_lrs & (1UL << i)))
continue;
if (cpu_if->vgic_elrsr & (1 << i)) {
if (cpu_if->vgic_elrsr & (1 << i))
cpu_if->vgic_lr[i] &= ~ICH_LR_STATE;
continue;
}
else
cpu_if->vgic_lr[i] = __gic_v3_get_lr(i);
cpu_if->vgic_lr[i] = __gic_v3_get_lr(i);
__gic_v3_set_lr(0, i);
}