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-rw-r--r--hw/block/dataplane/virtio-blk.c12
-rw-r--r--hw/block/virtio-blk.c28
-rw-r--r--hw/core/qdev-properties-system.c50
-rw-r--r--hw/core/qdev.c26
-rw-r--r--hw/s390x/s390-virtio-bus.c12
-rw-r--r--hw/s390x/s390-virtio-bus.h1
-rw-r--r--hw/s390x/virtio-ccw.c9
-rw-r--r--hw/s390x/virtio-ccw.h1
-rw-r--r--hw/timer/mc146818rtc.c9
-rw-r--r--hw/virtio/virtio-pci.c9
-rw-r--r--hw/virtio/virtio-pci.h1
11 files changed, 77 insertions, 81 deletions
diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c
index 09bd2c70ab..4c5ba18122 100644
--- a/hw/block/dataplane/virtio-blk.c
+++ b/hw/block/dataplane/virtio-blk.c
@@ -127,10 +127,20 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk,
     VirtIOBlockDataPlane *s;
     VirtIOBlock *vblk = VIRTIO_BLK(vdev);
     Error *local_err = NULL;
+    BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev)));
+    VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
 
     *dataplane = NULL;
 
-    if (!blk->data_plane) {
+    if (!blk->data_plane && !blk->iothread) {
+        return;
+    }
+
+    /* Don't try if transport does not support notifiers. */
+    if (!k->set_guest_notifiers || !k->set_host_notifier) {
+        error_setg(errp,
+                   "device is incompatible with x-data-plane "
+                   "(transport does not support notifiers)");
         return;
     }
 
diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index e59ebc962d..aec3146755 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -677,12 +677,6 @@ static const BlockDevOps virtio_block_ops = {
     .resize_cb = virtio_blk_resize,
 };
 
-void virtio_blk_set_conf(DeviceState *dev, VirtIOBlkConf *blk)
-{
-    VirtIOBlock *s = VIRTIO_BLK(dev);
-    memcpy(&(s->blk), blk, sizeof(struct VirtIOBlkConf));
-}
-
 #ifdef CONFIG_VIRTIO_BLK_DATA_PLANE
 /* Disable dataplane thread during live migration since it does not
  * update the dirty memory bitmap yet.
@@ -790,8 +784,27 @@ static void virtio_blk_device_unrealize(DeviceState *dev, Error **errp)
     virtio_cleanup(vdev);
 }
 
+static void virtio_blk_instance_init(Object *obj)
+{
+    VirtIOBlock *s = VIRTIO_BLK(obj);
+
+    object_property_add_link(obj, "iothread", TYPE_IOTHREAD,
+                             (Object **)&s->blk.iothread,
+                             qdev_prop_allow_set_link_before_realize,
+                             OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL);
+}
+
 static Property virtio_blk_properties[] = {
-    DEFINE_VIRTIO_BLK_PROPERTIES(VirtIOBlock, blk),
+    DEFINE_BLOCK_PROPERTIES(VirtIOBlock, blk.conf),
+    DEFINE_BLOCK_CHS_PROPERTIES(VirtIOBlock, blk.conf),
+    DEFINE_PROP_STRING("serial", VirtIOBlock, blk.serial),
+    DEFINE_PROP_BIT("config-wce", VirtIOBlock, blk.config_wce, 0, true),
+#ifdef __linux__
+    DEFINE_PROP_BIT("scsi", VirtIOBlock, blk.scsi, 0, true),
+#endif
+#ifdef CONFIG_VIRTIO_BLK_DATA_PLANE
+    DEFINE_PROP_BIT("x-data-plane", VirtIOBlock, blk.data_plane, 0, false),
+#endif
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -817,6 +830,7 @@ static const TypeInfo virtio_device_info = {
     .name = TYPE_VIRTIO_BLK,
     .parent = TYPE_VIRTIO_DEVICE,
     .instance_size = sizeof(VirtIOBlock),
+    .instance_init = virtio_blk_instance_init,
     .class_init = virtio_blk_class_init,
 };
 
diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c
index 52c2f8afa5..8e140af46f 100644
--- a/hw/core/qdev-properties-system.c
+++ b/hw/core/qdev-properties-system.c
@@ -385,56 +385,6 @@ void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd)
     nd->instantiated = 1;
 }
 
-/* --- iothread --- */
-
-static char *print_iothread(void *ptr)
-{
-    return iothread_get_id(ptr);
-}
-
-static int parse_iothread(DeviceState *dev, const char *str, void **ptr)
-{
-    IOThread *iothread;
-
-    iothread = iothread_find(str);
-    if (!iothread) {
-        return -ENOENT;
-    }
-    object_ref(OBJECT(iothread));
-    *ptr = iothread;
-    return 0;
-}
-
-static void get_iothread(Object *obj, struct Visitor *v, void *opaque,
-                         const char *name, Error **errp)
-{
-    get_pointer(obj, v, opaque, print_iothread, name, errp);
-}
-
-static void set_iothread(Object *obj, struct Visitor *v, void *opaque,
-                         const char *name, Error **errp)
-{
-    set_pointer(obj, v, opaque, parse_iothread, name, errp);
-}
-
-static void release_iothread(Object *obj, const char *name, void *opaque)
-{
-    DeviceState *dev = DEVICE(obj);
-    Property *prop = opaque;
-    IOThread **ptr = qdev_get_prop_ptr(dev, prop);
-
-    if (*ptr) {
-        object_unref(OBJECT(*ptr));
-    }
-}
-
-PropertyInfo qdev_prop_iothread = {
-    .name = "iothread",
-    .get = get_iothread,
-    .set = set_iothread,
-    .release = release_iothread,
-};
-
 static int qdev_add_one_global(QemuOpts *opts, void *opaque)
 {
     GlobalProperty *g;
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 371b42745e..3bdda8ef66 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -780,6 +780,27 @@ void qdev_property_add_static(DeviceState *dev, Property *prop,
     }
 }
 
+/* @qdev_alias_all_properties - Add alias properties to the source object for
+ * all qdev properties on the target DeviceState.
+ */
+void qdev_alias_all_properties(DeviceState *target, Object *source)
+{
+    ObjectClass *class;
+    Property *prop;
+
+    class = object_get_class(OBJECT(target));
+    do {
+        DeviceClass *dc = DEVICE_CLASS(class);
+
+        for (prop = dc->props; prop && prop->name; prop++) {
+            object_property_add_alias(source, prop->name,
+                                      OBJECT(target), prop->name,
+                                      &error_abort);
+        }
+        class = object_class_get_parent(class);
+    } while (class != object_class_by_name(TYPE_DEVICE));
+}
+
 static bool device_get_realized(Object *obj, Error **errp)
 {
     DeviceState *dev = DEVICE(obj);
@@ -848,6 +869,7 @@ static void device_set_realized(Object *obj, bool value, Error **errp)
         if (dev->hotplugged && local_err == NULL) {
             device_reset(dev);
         }
+        dev->pending_deleted_event = false;
     } else if (!value && dev->realized) {
         QLIST_FOREACH(bus, &dev->child_bus, sibling) {
             object_property_set_bool(OBJECT(bus), false, "realized",
@@ -862,6 +884,7 @@ static void device_set_realized(Object *obj, bool value, Error **errp)
         if (dc->unrealize && local_err == NULL) {
             dc->unrealize(dev, &local_err);
         }
+        dev->pending_deleted_event = true;
     }
 
     if (local_err != NULL) {
@@ -972,7 +995,6 @@ static void device_unparent(Object *obj)
 {
     DeviceState *dev = DEVICE(obj);
     BusState *bus;
-    bool have_realized = dev->realized;
 
     if (dev->realized) {
         object_property_set_bool(obj, false, "realized", NULL);
@@ -988,7 +1010,7 @@ static void device_unparent(Object *obj)
     }
 
     /* Only send event if the device had been completely realized */
-    if (have_realized) {
+    if (dev->pending_deleted_event) {
         gchar *path = object_get_canonical_path(OBJECT(dev));
 
         qapi_event_send_device_deleted(!!dev->id, dev->id, path, &error_abort);
diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c
index 7c8c81b0cc..c0dc3658c7 100644
--- a/hw/s390x/s390-virtio-bus.c
+++ b/hw/s390x/s390-virtio-bus.c
@@ -167,7 +167,6 @@ static int s390_virtio_blk_init(VirtIOS390Device *s390_dev)
 {
     VirtIOBlkS390 *dev = VIRTIO_BLK_S390(s390_dev);
     DeviceState *vdev = DEVICE(&dev->vdev);
-    virtio_blk_set_conf(vdev, &(dev->blk));
     qdev_set_parent_bus(vdev, BUS(&s390_dev->bus));
     if (qdev_init(vdev) < 0) {
         return -1;
@@ -180,6 +179,10 @@ static void s390_virtio_blk_instance_init(Object *obj)
     VirtIOBlkS390 *dev = VIRTIO_BLK_S390(obj);
     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_BLK);
     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
+    object_unref(OBJECT(&dev->vdev));
+    qdev_alias_all_properties(DEVICE(&dev->vdev), obj);
+    object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
+                              &error_abort);
 }
 
 static int s390_virtio_serial_init(VirtIOS390Device *s390_dev)
@@ -513,18 +516,11 @@ static const TypeInfo s390_virtio_net = {
     .class_init    = s390_virtio_net_class_init,
 };
 
-static Property s390_virtio_blk_properties[] = {
-    DEFINE_VIRTIO_BLK_PROPERTIES(VirtIOBlkS390, blk),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
 static void s390_virtio_blk_class_init(ObjectClass *klass, void *data)
 {
-    DeviceClass *dc = DEVICE_CLASS(klass);
     VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
 
     k->init = s390_virtio_blk_init;
-    dc->props = s390_virtio_blk_properties;
 }
 
 static const TypeInfo s390_virtio_blk = {
diff --git a/hw/s390x/s390-virtio-bus.h b/hw/s390x/s390-virtio-bus.h
index ac81bd89ee..ffd0df708b 100644
--- a/hw/s390x/s390-virtio-bus.h
+++ b/hw/s390x/s390-virtio-bus.h
@@ -124,7 +124,6 @@ void s390_virtio_reset_idx(VirtIOS390Device *dev);
 typedef struct VirtIOBlkS390 {
     VirtIOS390Device parent_obj;
     VirtIOBlock vdev;
-    VirtIOBlkConf blk;
 } VirtIOBlkS390;
 
 /* virtio-scsi-s390 */
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index 05656a2887..c2799685f2 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -800,7 +800,6 @@ static int virtio_ccw_blk_init(VirtioCcwDevice *ccw_dev)
 {
     VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
     DeviceState *vdev = DEVICE(&dev->vdev);
-    virtio_blk_set_conf(vdev, &(dev->blk));
     qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
     if (qdev_init(vdev) < 0) {
         return -1;
@@ -814,6 +813,10 @@ static void virtio_ccw_blk_instance_init(Object *obj)
     VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_BLK);
     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
+    object_unref(OBJECT(&dev->vdev));
+    qdev_alias_all_properties(DEVICE(&dev->vdev), obj);
+    object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
+                              &error_abort);
 }
 
 static int virtio_ccw_serial_init(VirtioCcwDevice *ccw_dev)
@@ -1400,12 +1403,8 @@ static const TypeInfo virtio_ccw_net = {
 static Property virtio_ccw_blk_properties[] = {
     DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
     DEFINE_VIRTIO_BLK_FEATURES(VirtioCcwDevice, host_features[0]),
-    DEFINE_VIRTIO_BLK_PROPERTIES(VirtIOBlkCcw, blk),
     DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
                     VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
-#ifdef CONFIG_VIRTIO_BLK_DATA_PLANE
-    DEFINE_PROP_BIT("x-data-plane", VirtIOBlkCcw, blk.data_plane, 0, false),
-#endif
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/hw/s390x/virtio-ccw.h b/hw/s390x/virtio-ccw.h
index b8b8a8abaa..5a1f16ee5d 100644
--- a/hw/s390x/virtio-ccw.h
+++ b/hw/s390x/virtio-ccw.h
@@ -144,7 +144,6 @@ typedef struct VHostSCSICcw {
 typedef struct VirtIOBlkCcw {
     VirtioCcwDevice parent_obj;
     VirtIOBlock vdev;
-    VirtIOBlkConf blk;
 } VirtIOBlkCcw;
 
 /* virtio-balloon-ccw */
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c
index 307732c744..9d817cab78 100644
--- a/hw/timer/mc146818rtc.c
+++ b/hw/timer/mc146818rtc.c
@@ -909,6 +909,9 @@ static void rtc_realizefn(DeviceState *dev, Error **errp)
 
     object_property_add(OBJECT(s), "date", "struct tm",
                         rtc_get_date, NULL, NULL, s, NULL);
+
+    object_property_add_alias(qdev_get_machine(), "rtc-time",
+                              OBJECT(s), "date", NULL);
 }
 
 ISADevice *rtc_init(ISABus *bus, int base_year, qemu_irq intercept_irq)
@@ -950,11 +953,17 @@ static void rtc_class_initfn(ObjectClass *klass, void *data)
     dc->cannot_instantiate_with_device_add_yet = true;
 }
 
+static void rtc_finalize(Object *obj)
+{
+    object_property_del(qdev_get_machine(), "rtc", NULL);
+}
+
 static const TypeInfo mc146818rtc_info = {
     .name          = TYPE_MC146818_RTC,
     .parent        = TYPE_ISA_DEVICE,
     .instance_size = sizeof(RTCState),
     .class_init    = rtc_class_initfn,
+    .instance_finalize = rtc_finalize,
 };
 
 static void mc146818rtc_register_types(void)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 317324f23d..3c42cda82b 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1066,11 +1066,7 @@ static Property virtio_blk_pci_properties[] = {
     DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
                     VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
     DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
-#ifdef CONFIG_VIRTIO_BLK_DATA_PLANE
-    DEFINE_PROP_BIT("x-data-plane", VirtIOBlkPCI, blk.data_plane, 0, false),
-#endif
     DEFINE_VIRTIO_BLK_FEATURES(VirtIOPCIProxy, host_features),
-    DEFINE_VIRTIO_BLK_PROPERTIES(VirtIOBlkPCI, blk),
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -1078,7 +1074,6 @@ static int virtio_blk_pci_init(VirtIOPCIProxy *vpci_dev)
 {
     VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev);
     DeviceState *vdev = DEVICE(&dev->vdev);
-    virtio_blk_set_conf(vdev, &(dev->blk));
     qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
     if (qdev_init(vdev) < 0) {
         return -1;
@@ -1106,6 +1101,10 @@ static void virtio_blk_pci_instance_init(Object *obj)
     VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj);
     object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_BLK);
     object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
+    object_unref(OBJECT(&dev->vdev));
+    qdev_alias_all_properties(DEVICE(&dev->vdev), obj);
+    object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
+                              &error_abort);
 }
 
 static const TypeInfo virtio_blk_pci_info = {
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
index dc332ae774..1cea157a47 100644
--- a/hw/virtio/virtio-pci.h
+++ b/hw/virtio/virtio-pci.h
@@ -131,7 +131,6 @@ struct VHostSCSIPCI {
 struct VirtIOBlkPCI {
     VirtIOPCIProxy parent_obj;
     VirtIOBlock vdev;
-    VirtIOBlkConf blk;
 };
 
 /*