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-rw-r--r--hw/vfio/common.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index e2d5a8d9d5..e51ed3a348 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -269,6 +269,12 @@ static void vfio_iommu_map_notify(Notifier *n, void *data)
trace_vfio_iommu_map_notify(iova, iova + iotlb->addr_mask);
+ if (iotlb->target_as != &address_space_memory) {
+ error_report("Wrong target AS \"%s\", only system memory is allowed",
+ iotlb->target_as->name ? iotlb->target_as->name : "none");
+ return;
+ }
+
/*
* The IOMMU TLB entry we have just covers translation through
* this IOMMU to its immediate target. We need to translate