diff options
Diffstat (limited to 'hw/sysbus.c')
| -rw-r--r-- | hw/sysbus.c | 45 |
1 files changed, 39 insertions, 6 deletions
diff --git a/hw/sysbus.c b/hw/sysbus.c index db4efccef4..9d8b1eaf7d 100644 --- a/hw/sysbus.c +++ b/hw/sysbus.c @@ -24,11 +24,19 @@ static void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent); static char *sysbus_get_fw_dev_path(DeviceState *dev); -struct BusInfo system_bus_info = { - .name = "System", - .size = sizeof(BusState), - .print_dev = sysbus_dev_print, - .get_fw_dev_path = sysbus_get_fw_dev_path, +static void system_bus_class_init(ObjectClass *klass, void *data) +{ + BusClass *k = BUS_CLASS(klass); + + k->print_dev = sysbus_dev_print; + k->get_fw_dev_path = sysbus_get_fw_dev_path; +} + +static const TypeInfo system_bus_info = { + .name = TYPE_SYSTEM_BUS, + .parent = TYPE_BUS, + .instance_size = sizeof(BusState), + .class_init = system_bus_class_init, }; void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq) @@ -244,7 +252,7 @@ static void sysbus_device_class_init(ObjectClass *klass, void *data) { DeviceClass *k = DEVICE_CLASS(klass); k->init = sysbus_device_init; - k->bus_info = &system_bus_info; + k->bus_type = TYPE_SYSTEM_BUS; } static TypeInfo sysbus_device_type_info = { @@ -256,8 +264,33 @@ static TypeInfo sysbus_device_type_info = { .class_init = sysbus_device_class_init, }; +/* This is a nasty hack to allow passing a NULL bus to qdev_create. */ +static BusState *main_system_bus; + +static void main_system_bus_create(void) +{ + /* assign main_system_bus before qbus_create_inplace() + * in order to make "if (bus != sysbus_get_default())" work */ + main_system_bus = g_malloc0(system_bus_info.instance_size); + qbus_create_inplace(main_system_bus, TYPE_SYSTEM_BUS, NULL, + "main-system-bus"); + main_system_bus->glib_allocated = true; + object_property_add_child(container_get(qdev_get_machine(), + "/unattached"), + "sysbus", OBJECT(main_system_bus), NULL); +} + +BusState *sysbus_get_default(void) +{ + if (!main_system_bus) { + main_system_bus_create(); + } + return main_system_bus; +} + static void sysbus_register_types(void) { + type_register_static(&system_bus_info); type_register_static(&sysbus_device_type_info); } |