[07/17] KVM: arm/arm64: vgic-its: Invalidate MSI-LPI translation cache on vgic teardown

Commit Message

Marc Zyngier Sept. 9, 2019, 1:47 p.m. UTC

In order to avoid leaking vgic_irq structures on teardown, we need to
drop all references to LPIs before deallocating the cache itself.

This is done by invalidating the cache on vgic teardown.

Tested-by: Andre Przywara <[e-mail]>
Reviewed-by: Eric Auger <[e-mail]>
Signed-off-by: Marc Zyngier <[e-mail]>
---
 virt/kvm/arm/vgic/vgic-its.c | 2 ++
 1 file changed, 2 insertions(+)

Patch

diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 05406bd92ce9..d3e90a9d0a7a 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -1731,6 +1731,8 @@  void vgic_lpi_translation_cache_destroy(struct kvm *kvm)
 	struct vgic_dist *dist = &kvm->arch.vgic;
 	struct vgic_translation_cache_entry *cte, *tmp;
 
+	vgic_its_invalidate_cache(kvm);
+
 	list_for_each_entry_safe(cte, tmp,
 				 &dist->lpi_translation_cache, entry) {
 		list_del(&cte->entry);