vhost doesn't support guest iommus yet, indicate it to the user
by gently depositing a core on their disk.

Signed-off-by: Avi Kivity <a...@redhat.com>
---
 hw/vhost.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/vhost.c b/hw/vhost.c
index 0b4ac3f..cd5d9f5 100644
--- a/hw/vhost.c
+++ b/hw/vhost.c
@@ -451,6 +451,8 @@ static void vhost_region_add(MemoryListener *listener,
     struct vhost_dev *dev = container_of(listener, struct vhost_dev,
                                          memory_listener);
 
+    assert(!memory_region_is_iommu(section.mr));
+
     if (!vhost_section(section)) {
         return;
     }
-- 
1.7.12


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