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, 21 insertions, 12 deletions

diff --git a/hw/qdev-monitor.c b/hw/qdev-monitor.c
index 390d467e89..691b864c54 100644
--- a/hw/qdev-monitor.c
+++ b/hw/qdev-monitor.c
@@ -75,8 +75,8 @@ static void qdev_print_devinfo(ObjectClass *klass, void *opaque)
     }
 
     error_printf("name \"%s\"", object_class_get_name(klass));
-    if (dc->bus_info) {
-        error_printf(", bus %s", dc->bus_info->name);
+    if (dc->bus_type) {
+        error_printf(", bus %s", dc->bus_type);
     }
     if (qdev_class_has_alias(dc)) {
         error_printf(", alias \"%s\"", qdev_class_get_alias(dc));
@@ -262,7 +262,7 @@ static DeviceState *qbus_find_dev(BusState *bus, char *elem)
 }
 
 static BusState *qbus_find_recursive(BusState *bus, const char *name,
-                                     const BusInfo *info)
+                                     const char *bus_typename)
 {
     DeviceState *dev;
     BusState *child, *ret;
@@ -271,7 +271,8 @@ static BusState *qbus_find_recursive(BusState *bus, const char *name,
     if (name && (strcmp(bus->name, name) != 0)) {
         match = 0;
     }
-    if (info && (bus->info != info)) {
+    if (bus_typename &&
+        (strcmp(object_get_typename(OBJECT(bus)), bus_typename) != 0)) {
         match = 0;
     }
     if (match) {
@@ -280,7 +281,7 @@ static BusState *qbus_find_recursive(BusState *bus, const char *name,
 
     QTAILQ_FOREACH(dev, &bus->children, sibling) {
         QLIST_FOREACH(child, &dev->child_bus, sibling) {
-            ret = qbus_find_recursive(child, name, info);
+            ret = qbus_find_recursive(child, name, bus_typename);
             if (ret) {
                 return ret;
             }
@@ -415,16 +416,16 @@ DeviceState *qdev_device_add(QemuOpts *opts)
         if (!bus) {
             return NULL;
         }
-        if (bus->info != k->bus_info) {
+        if (strcmp(object_get_typename(OBJECT(bus)), k->bus_type) != 0) {
             qerror_report(QERR_BAD_BUS_FOR_DEVICE,
-                           driver, bus->info->name);
+                          driver, object_get_typename(OBJECT(bus)));
             return NULL;
         }
     } else {
-        bus = qbus_find_recursive(sysbus_get_default(), NULL, k->bus_info);
+        bus = qbus_find_recursive(sysbus_get_default(), NULL, k->bus_type);
         if (!bus) {
             qerror_report(QERR_NO_BUS_FOR_DEVICE,
-                          driver, k->bus_info->name);
+                          driver, k->bus_type);
             return NULL;
         }
     }
@@ -497,6 +498,15 @@ static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
     }
 }
 
+static void bus_print_dev(BusState *bus, Monitor *mon, DeviceState *dev, int indent)
+{
+    BusClass *bc = BUS_GET_CLASS(bus);
+
+    if (bc->print_dev) {
+        bc->print_dev(mon, dev, indent);
+    }
+}
+
 static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
 {
     ObjectClass *class;
@@ -515,8 +525,7 @@ static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
         qdev_print_props(mon, dev, DEVICE_CLASS(class)->props, indent);
         class = object_class_get_parent(class);
     } while (class != object_class_by_name(TYPE_DEVICE));
-    if (dev->parent_bus->info->print_dev)
-        dev->parent_bus->info->print_dev(mon, dev, indent);
+    bus_print_dev(dev->parent_bus, mon, dev, indent + 2);
     QLIST_FOREACH(child, &dev->child_bus, sibling) {
         qbus_print(mon, child, indent);
     }
@@ -528,7 +537,7 @@ static void qbus_print(Monitor *mon, BusState *bus, int indent)
 
     qdev_printf("bus: %s\n", bus->name);
     indent += 2;
-    qdev_printf("type %s\n", bus->info->name);
+    qdev_printf("type %s\n", object_get_typename(OBJECT(bus)));
     QTAILQ_FOREACH(dev, &bus->children, sibling) {
         qdev_print(mon, dev, indent);
     }