Merge tag 'kvmarm-fixes-6.7-1' of git://git.kernel.org/pub/scm/linux/…

…kernel/git/kvmarm/kvmarm into kvm-master KVM/arm64 fixes for 6.7, take #1 - Avoid mapping vLPIs that have already been mapped
ungeskriptet · Dec 8, 2023 · c8a11a9 · c8a11a9
2 parents 33cc938 + 8e4ece6
commit c8a11a9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/arch/arm64/kvm/vgic/vgic-v4.c b/arch/arm64/kvm/vgic/vgic-v4.c
@@ -436,6 +436,10 @@ int kvm_vgic_v4_set_forwarding(struct kvm *kvm, int virq,
 	if (ret)
 		goto out;
 
+	/* Silently exit if the vLPI is already mapped */
+	if (irq->hw)
+		goto out;
+
 	/*
 	 * Emit the mapping request. If it fails, the ITS probably
 	 * isn't v4 compatible, so let's silently bail out. Holding