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authorJason Wang <jasowang@redhat.com>2016-12-30 18:09:17 +0800
committerMichael S. Tsirkin <mst@redhat.com>2017-01-10 05:56:59 +0200
commitefcd38c529fd9c461cfcd48265855ce6aab2ef0a (patch)
tree638b6eea57faa28b25b01f7685ad0a666389423e
parentbd2baaccd521a9cfcc56e0a9a69c903fcee56aa4 (diff)
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memory: handle alias for iommu notifier
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>
-rw-r--r--memory.c9
1 files changed, 9 insertions, 0 deletions
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);
}