Commit fa89c77e authored May 25, 2016 by Christoffer Dall

KVM: arm/arm64: vgic-v3: 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>

parent 4d3afc9b

arch/arm64/kvm/hyp/vgic-v3-sr.c

+3 −4

Original line number	Diff line number	Diff line
		@@ -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);

		__gic_v3_set_lr(0, i);
		}