diff mbox

[V3,08/10] memory: handle alias for iommu notifier

Message ID 1478502595-8484-9-git-send-email-jasowang@redhat.com
State New
Headers show

Commit Message

Jason Wang Nov. 7, 2016, 7:09 a.m. UTC 
Cc: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 memory.c | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Peter Xu Nov. 7, 2016, 11:41 p.m. UTC | #1 
On Mon, Nov 07, 2016 at 03:09:53PM +0800, Jason Wang wrote:
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Acked-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Jason Wang <jasowang@redhat.com>

Reviewed-by: Peter Xu <peterx@redhat.com>
diff mbox

Patch

diff --git a/memory.c b/memory.c
index 33110e9..2bfc37f 100644
--- a/memory.c
+++ b/memory.c
@@ -1603,6 +1603,11 @@  static void memory_region_update_iommu_notify_flags(MemoryRegion *mr)
 void memory_region_register_iommu_notifier(MemoryRegion *mr,
                                            IOMMUNotifier *n)
 {
+    if (mr->alias) {
+        memory_region_register_iommu_notifier(mr->alias, n);
+        return;
+    }
+
     /* We need to register for at least one bitfield */
     assert(n->notifier_flags != IOMMU_NOTIFIER_NONE);
     QLIST_INSERT_HEAD(&mr->iommu_notify, n, node);
@@ -1643,6 +1648,10 @@  void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n,
 void memory_region_unregister_iommu_notifier(MemoryRegion *mr,
                                              IOMMUNotifier *n)
 {
+    if (mr->alias) {
+        memory_region_unregister_iommu_notifier(mr->alias, n);
+        return;
+    }
     QLIST_REMOVE(n, node);
     memory_region_update_iommu_notify_flags(mr);
 }