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KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI

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When freeing an LPI (on a DISCARD command, for example), we need
to unmap the VLPI down to the physical ITS level.

Acked-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
This commit is contained in:
Marc Zyngier 2017-10-27 15:28:41 +01:00 committed by Christoffer Dall
parent 1b7fe468b0
commit 07b46ed116
1 changed files with 5 additions and 1 deletions
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6
virt/kvm/arm/vgic/vgic-its.c
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@ -631,8 +631,12 @@ static void its_free_ite(struct kvm *kvm, struct its_ite *ite)
list_del(&ite->ite_list);
/* This put matches the get in vgic_add_lpi. */
if (ite->irq)
if (ite->irq) {
if (ite->irq->hw)
WARN_ON(its_unmap_vlpi(ite->irq->host_irq));
vgic_put_irq(kvm, ite->irq);
}
kfree(ite);
}