[Qemu-devel] [PATCH v4 4/8] virtio-rng-s390: switch to the new API.

[fred.konrad@greensocs.com]

From: KONRAD Frederic <fred.konrad@greensocs.com>

Here the virtio-rng-s390 is modified for the new API. The device
virtio-rng-s390 extends virtio-s390-device as before. It creates and
connects a virtio-rng during the init. The properties are not modified.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
---
 hw/s390x/s390-virtio-bus.c | 38 ++++++++++++++++++++++----------------
 hw/s390x/s390-virtio-bus.h | 12 +++++++++++-
 2 files changed, 33 insertions(+), 17 deletions(-)

diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c
index ca0e301..4d9f2ec 100644
--- a/hw/s390x/s390-virtio-bus.c
+++ b/hw/s390x/s390-virtio-bus.c
@@ -239,16 +239,30 @@ static void s390_virtio_scsi_instance_init(Object *obj)
     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
 }
 
-static int s390_virtio_rng_init(VirtIOS390Device *dev)
+static int s390_virtio_rng_init(VirtIOS390Device *s390_dev)
 {
-    VirtIODevice *vdev;
+    VirtIORNGS390 *dev = VIRTIO_RNG_S390(s390_dev);
+    DeviceState *vdev = DEVICE(&dev->vdev);
 
-    vdev = virtio_rng_init((DeviceState *)dev, &dev->rng);
-    if (!vdev) {
+    qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
+    if (qdev_init(vdev) < 0) {
         return -1;
     }
 
-    return s390_virtio_device_init(dev, vdev);
+    object_property_set_link(OBJECT(dev),
+                             OBJECT(dev->vdev.conf.default_backend), "rng",
+                             NULL);
+
+    return s390_virtio_device_init(s390_dev, VIRTIO_DEVICE(vdev));
+}
+
+static void s390_virtio_rng_instance_init(Object *obj)
+{
+    VirtIORNGS390 *dev = VIRTIO_RNG_S390(obj);
+    object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_RNG);
+    object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
+    object_property_add_link(obj, "rng", TYPE_RNG_BACKEND,
+                             (Object **)&dev->vdev.conf.rng, NULL);
 }
 
 static uint64_t s390_virtio_device_vq_token(VirtIOS390Device *dev, int vq)
@@ -500,14 +514,6 @@ static const TypeInfo s390_virtio_serial = {
     .class_init    = s390_virtio_serial_class_init,
 };
 
-static void s390_virtio_rng_initfn(Object *obj)
-{
-    VirtIOS390Device *dev = VIRTIO_S390_DEVICE(obj);
-
-    object_property_add_link(obj, "rng", TYPE_RNG_BACKEND,
-                             (Object **)&dev->rng.rng, NULL);
-}
-
 static void s390_virtio_rng_class_init(ObjectClass *klass, void *data)
 {
     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
@@ -516,10 +522,10 @@ static void s390_virtio_rng_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo s390_virtio_rng = {
-    .name          = "virtio-rng-s390",
+    .name          = TYPE_VIRTIO_RNG_S390,
     .parent        = TYPE_VIRTIO_S390_DEVICE,
-    .instance_size = sizeof(VirtIOS390Device),
-    .instance_init = s390_virtio_rng_initfn,
+    .instance_size = sizeof(VirtIORNGS390),
+    .instance_init = s390_virtio_rng_instance_init,
     .class_init    = s390_virtio_rng_class_init,
 };
 
diff --git a/hw/s390x/s390-virtio-bus.h b/hw/s390x/s390-virtio-bus.h
index 925ed2b..ba1fb85 100644
--- a/hw/s390x/s390-virtio-bus.h
+++ b/hw/s390x/s390-virtio-bus.h
@@ -90,7 +90,6 @@ struct VirtIOS390Device {
     uint8_t feat_len;
     VirtIODevice *vdev;
     uint32_t host_features;
-    VirtIORNGConf rng;
     VirtioBusState bus;
 };
 
@@ -160,4 +159,15 @@ typedef struct VirtIONetS390 {
     VirtIONet vdev;
 } VirtIONetS390;
 
+/* virtio-rng-s390 */
+
+#define TYPE_VIRTIO_RNG_S390 "virtio-rng-s390"
+#define VIRTIO_RNG_S390(obj) \
+        OBJECT_CHECK(VirtIORNGS390, (obj), TYPE_VIRTIO_RNG_S390)
+
+typedef struct VirtIORNGS390 {
+    VirtIOS390Device parent_obj;
+    VirtIORNG vdev;
+} VirtIORNGS390;
+
 #endif
-- 
1.7.11.7