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authorBharat Bhushan <bbhushan2@marvell.com>2020-10-30 19:05:06 +0100
committerMichael S. Tsirkin <mst@redhat.com>2020-11-03 07:19:27 -0500
commit6978bfaa688df55dc9ea581fe32b226f81aebc3a (patch)
treec10d34dd7a2dde22791c332feabcbece4cba3009 /hw/virtio/virtio-iommu.c
parent308e5e1b5f811aa28063006088ff276a63a034d3 (diff)
downloadfocaccia-qemu-6978bfaa688df55dc9ea581fe32b226f81aebc3a.tar.gz
focaccia-qemu-6978bfaa688df55dc9ea581fe32b226f81aebc3a.zip
virtio-iommu: Add notify_flag_changed() memory region callback
Add notify_flag_changed() to notice when memory listeners are added and
removed.

Acked-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-Id: <20201030180510.747225-7-jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio/virtio-iommu.c')
-rw-r--r--hw/virtio/virtio-iommu.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c
index 985257c88f..78e07aa40a 100644
--- a/hw/virtio/virtio-iommu.c
+++ b/hw/virtio/virtio-iommu.c
@@ -886,6 +886,19 @@ unlock:
     qemu_mutex_unlock(&s->mutex);
 }
 
+static int virtio_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu_mr,
+                                            IOMMUNotifierFlag old,
+                                            IOMMUNotifierFlag new,
+                                            Error **errp)
+{
+    if (old == IOMMU_NOTIFIER_NONE) {
+        trace_virtio_iommu_notify_flag_add(iommu_mr->parent_obj.name);
+    } else if (new == IOMMU_NOTIFIER_NONE) {
+        trace_virtio_iommu_notify_flag_del(iommu_mr->parent_obj.name);
+    }
+    return 0;
+}
+
 static void virtio_iommu_device_realize(DeviceState *dev, Error **errp)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(dev);
@@ -1116,6 +1129,7 @@ static void virtio_iommu_memory_region_class_init(ObjectClass *klass,
 
     imrc->translate = virtio_iommu_translate;
     imrc->replay = virtio_iommu_replay;
+    imrc->notify_flag_changed = virtio_iommu_notify_flag_changed;
 }
 
 static const TypeInfo virtio_iommu_info = {