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authorMarc Zyngier <marc.zyngier@arm.com>2017-10-27 17:28:41 +0300
committerChristoffer Dall <christoffer.dall@linaro.org>2017-11-10 11:29:36 +0300
commit07b46ed116cf0893200c97db2f72e0f7839b7f91 (patch)
tree51febb2f4d0c2844c243d6b43f7ba1d6f64036ee /virt
parent1b7fe468b0ca6a4b47a447cf583455e445bf0246 (diff)
downloadlinux-07b46ed116cf0893200c97db2f72e0f7839b7f91.tar.xz
KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI
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>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/arm/vgic/vgic-its.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 590f794b7330..ad14af8a4412 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -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);
}