From: Jason Wang <jasowang@redhat.com>
Date: Fri, 30 Dec 2016 10:09:18 +0000 (+0800)
Subject: memory: handle alias in memory_region_is_iommu()
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=12d37882f0c0def5dee1c21be5d8fea9c21baada;p=qmiga%2Fqemu.git

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>
---

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 358edfbbc7..bec9756667 100644
--- 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;
 }