vfio/container: Implement attach/detach_device

No functional change intended.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>

hw/vfio/common.c

@@ -1498,3 +1498,19 @@ struct vfio_device_info *vfio_get_device_info(int fd)
 
     return info;
 }
+
+int vfio_attach_device(char *name, VFIODevice *vbasedev,
+                       AddressSpace *as, Error **errp)
+{
+    const VFIOIOMMUOps *ops = &vfio_legacy_ops;
+
+    return ops->attach_device(name, vbasedev, as, errp);
+}
+
+void vfio_detach_device(VFIODevice *vbasedev)
+{
+    if (!vbasedev->bcontainer) {
+        return;
+    }
+    vbasedev->bcontainer->ops->detach_device(vbasedev);
+}

hw/vfio/container.c

@@ -873,8 +873,8 @@ static int vfio_device_groupid(VFIODevice *vbasedev, Error **errp)
  * @name and @vbasedev->name are likely to be different depending
  * on the type of the device, hence the need for passing @name
  */
-int vfio_attach_device(char *name, VFIODevice *vbasedev,
-                       AddressSpace *as, Error **errp)
+static int vfio_legacy_attach_device(const char *name, VFIODevice *vbasedev,
+                                     AddressSpace *as, Error **errp)
 {
     int groupid = vfio_device_groupid(vbasedev, errp);
     VFIODevice *vbasedev_iter;
@@ -914,14 +914,10 @@ int vfio_attach_device(char *name, VFIODevice *vbasedev,
     return ret;
 }
 
-void vfio_detach_device(VFIODevice *vbasedev)
+static void vfio_legacy_detach_device(VFIODevice *vbasedev)
 {
     VFIOGroup *group = vbasedev->group;
 
-    if (!vbasedev->bcontainer) {
-        return;
-    }
-
     QLIST_REMOVE(vbasedev, global_next);
     QLIST_REMOVE(vbasedev, container_next);
     vbasedev->bcontainer = NULL;
@@ -933,6 +929,8 @@ void vfio_detach_device(VFIODevice *vbasedev)
 const VFIOIOMMUOps vfio_legacy_ops = {
     .dma_map = vfio_legacy_dma_map,
     .dma_unmap = vfio_legacy_dma_unmap,
+    .attach_device = vfio_legacy_attach_device,
+    .detach_device = vfio_legacy_detach_device,
     .set_dirty_page_tracking = vfio_legacy_set_dirty_page_tracking,
     .query_dirty_bitmap = vfio_legacy_query_dirty_bitmap,
 };