qdev: Convert busses to QEMU Object Model

This is far less interesting than it sounds.  We simply add an Object to each
BusState and then register the types appropriately.  Most of the interesting
refactoring will follow in the next patches.

Since we're changing fundamental type names (BusInfo -> BusClass), it all needs
to convert at once.  Fortunately, not a lot of code is affected.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Made all new bus TypeInfos static const.]
[AF: Made qbus_free() call object_delete(), required {qom,glib}_allocated]
Signed-off-by: Andreas Färber <afaerber@suse.de>

1 files changed, 7 insertions, 5 deletions

diff --git a/hw/spapr_vio.c b/hw/spapr_vio.c
index cf84952..b7611ff 100644
--- a/hw/spapr_vio.c
+++ b/hw/spapr_vio.c
@@ -54,9 +54,10 @@ static Property spapr_vio_props[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
 
-static struct BusInfo spapr_vio_bus_info = {
-    .name       = "spapr-vio",
-    .size       = sizeof(VIOsPAPRBus),
+static const TypeInfo spapr_vio_bus_info = {
+    .name = TYPE_SPAPR_VIO_BUS,
+    .parent = TYPE_BUS,
+    .instance_size = sizeof(VIOsPAPRBus),
 };
 
 VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg)
@@ -743,7 +744,7 @@ VIOsPAPRBus *spapr_vio_bus_init(void)
 
     /* Create bus on bridge device */
 
-    qbus = qbus_create(&spapr_vio_bus_info, dev, "spapr-vio");
+    qbus = qbus_create(TYPE_SPAPR_VIO_BUS, dev, "spapr-vio");
     bus = DO_UPCAST(VIOsPAPRBus, bus, qbus);
     bus->next_reg = 0x1000;
 
@@ -795,7 +796,7 @@ static void vio_spapr_device_class_init(ObjectClass *klass, void *data)
     DeviceClass *k = DEVICE_CLASS(klass);
     k->init = spapr_vio_busdev_init;
     k->reset = spapr_vio_busdev_reset;
-    k->bus_info = &spapr_vio_bus_info;
+    k->bus_type = TYPE_SPAPR_VIO_BUS;
     k->props = spapr_vio_props;
 }
 
@@ -810,6 +811,7 @@ static TypeInfo spapr_vio_type_info = {
 
 static void spapr_vio_register_types(void)
 {
+    type_register_static(&spapr_vio_bus_info);
     type_register_static(&spapr_vio_bridge_info);
     type_register_static(&spapr_vio_type_info);
 }