memory: handle alias in memory_region_is_iommu()

Cc: Paolo Bonzini <[email protected]> Acked-by: Paolo Bonzini <[email protected]> Signed-off-by: Jason Wang <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]> Reviewed-by: Peter Xu <[email protected]>
cjellick · Jan 10, 2017 · 12d3788 · 12d3788
1 parent efcd38c
commit 12d3788
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/include/exec/memory.h b/include/exec/memory.h
@@ -628,6 +628,9 @@ static inline bool memory_region_is_romd(MemoryRegion *mr)
  */
 static inline bool memory_region_is_iommu(MemoryRegion *mr)
 {
+    if (mr->alias) {
+        return memory_region_is_iommu(mr->alias);
+    }
     return mr->iommu_ops;
 }