commit 12d37882f0c0def5dee1c21be5d8fea9c21baada
author Jason Wang <jasowang@redhat.com> Fri Dec 30 18:09:18 2016 +0800
committer Michael S. Tsirkin <mst@redhat.com> Tue Jan 10 05:56:59 2017 +0200
tree aef26d3696e06d891c1e451ccfa0874dbdc1bf24
parent efcd38c529fd9c461cfcd48265855ce6aab2ef0a

memory: handle alias in memory_region_is_iommu()

Cc: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>

include/exec/memory.h

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 358edfb..bec9756 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -628,6 +628,9 @@
  */
 static inline bool memory_region_is_iommu(MemoryRegion *mr)
 {
+    if (mr->alias) {
+        return memory_region_is_iommu(mr->alias);
+    }
     return mr->iommu_ops;
 }