[Qemu-devel] [PATCH for 2.8 09/11] memory: handle alias for iommu notifier

[Jason Wang <jasowang@redhat.com>]

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 memory.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/memory.c b/memory.c
index 0eb6895..ca0a698 100644
--- a/memory.c
+++ b/memory.c
@@ -1515,6 +1515,11 @@ bool memory_region_is_logging(MemoryRegion *mr, uint8_t client)
 
 void memory_region_register_iommu_notifier(MemoryRegion *mr, Notifier *n)
 {
+    if (mr->alias) {
+        memory_region_register_iommu_notifier(mr->alias, n);
+        return;
+    }
+
     if (mr->iommu_ops->notify_started &&
         QLIST_EMPTY(&mr->iommu_notify.notifiers)) {
         mr->iommu_ops->notify_started(mr);
@@ -1554,6 +1559,10 @@ void memory_region_iommu_replay(MemoryRegion *mr, Notifier *n, bool is_write)
 
 void memory_region_unregister_iommu_notifier(MemoryRegion *mr, Notifier *n)
 {
+    if (mr->alias) {
+        memory_region_unregister_iommu_notifier(mr->alias, n);
+        return;
+    }
     notifier_remove(n);
     if (mr->iommu_ops->notify_stopped &&
         QLIST_EMPTY(&mr->iommu_notify.notifiers)) {
-- 
2.7.4