1 files changed, 2 insertions, 2 deletions
diff --git a/system/memory.c b/system/memory.c
index 74cd73ebc7..f3a37c97c1 100644
--- a/system/memory.c
+++ b/system/memory.c
@@ -2006,9 +2006,9 @@ void memory_region_unregister_iommu_notifier(MemoryRegion *mr,
 }
 
 void memory_region_notify_iommu_one(IOMMUNotifier *notifier,
-                                    IOMMUTLBEvent *event)
+                                    const IOMMUTLBEvent *event)
 {
-    IOMMUTLBEntry *entry = &event->entry;
+    const IOMMUTLBEntry *entry = &event->entry;
     hwaddr entry_end = entry->iova + entry->addr_mask;
     IOMMUTLBEntry tmp = *entry;