vfio: Introduce a helper function to initialize VFIODevice

Introduce a helper function to replace the common code to initialize
VFIODevice in pci, platform, ap and ccw VFIO device.

No functional change intended.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c
index 95fe7cd98b..e157aa1ff7 100644
--- a/hw/vfio/ap.c
+++ b/hw/vfio/ap.c
@@ -226,18 +226,14 @@ static void vfio_ap_instance_init(Object *obj)
     VFIOAPDevice *vapdev = VFIO_AP_DEVICE(obj);
     VFIODevice *vbasedev = &vapdev->vdev;
 
-    vbasedev->type = VFIO_DEVICE_TYPE_AP;
-    vbasedev->ops = &vfio_ap_ops;
-    vbasedev->dev = DEVICE(vapdev);
-    vbasedev->fd = -1;
-
     /*
      * vfio-ap devices operate in a way compatible with discarding of
      * memory in RAM blocks, as no pages are pinned in the host.
      * This needs to be set before vfio_get_device() for vfio common to
      * handle ram_block_discard_disable().
      */
-    vbasedev->ram_block_discard_allowed = true;
+    vfio_device_init(vbasedev, VFIO_DEVICE_TYPE_AP, &vfio_ap_ops,
+                     DEVICE(vapdev), true);
 }
 
 #ifdef CONFIG_IOMMUFD