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Commit 4d3afc9b authored by Christoffer Dall's avatar Christoffer Dall
Browse files

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: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 1a695a90

virt/kvm/arm/hyp/vgic-v2-sr.c

+3 −4
Original line number Diff line number Diff line
@@ -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));



		writel_relaxed(0, base + GICH_LR0 + (i * 4));

	}

}