[PATCH v3 43/59] KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI
From: Marc Zyngier <hidden>
Date: 2017-07-31 17:28:24
Also in:
kvm, kvmarm, lkml
Subsystem:
kernel virtual machine (kvm), the rest · Maintainers:
Paolo Bonzini, Linus Torvalds
When freeing an LPI (on a DISCARD command, for example), we need to unmap the VLPI down to the physical ITS level. Signed-off-by: Marc Zyngier <redacted> --- virt/kvm/arm/vgic/vgic-its.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 40aeadef33fe..79bac93d3e7d 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c@@ -623,8 +623,12 @@ 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) + its_unmap_vlpi(ite->irq->host_irq); + vgic_put_irq(kvm, ite->irq); + } kfree(ite); }
--
2.11.0