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qdev: add a interface to register subclasses 

In order to introduce inheritance while still using the qdev registration
interfaces, we need to be able to use a parent other than TYPE_DEVICE.  Add a
new interface that allows this.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori 2011-12-15 14:40:29 -06:00
parent 94afdadcb3
commit 3cc90eb2b7
2 changed files with 8 additions and 2 deletions
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9
hw/qdev.c
View File

@ -61,7 +61,7 @@ DeviceInfo *qdev_get_info(DeviceState *dev)
return DEVICE_GET_CLASS(dev)->info;
}
void qdev_register(DeviceInfo *info)
void qdev_register_subclass(DeviceInfo *info, const char *parent)
{
TypeInfo type_info = {};
@ -69,7 +69,7 @@ void qdev_register(DeviceInfo *info)
assert(!info->next);
type_info.name = info->name;
type_info.parent = TYPE_DEVICE;
type_info.parent = parent;
type_info.instance_size = info->size;
type_info.class_init = qdev_subclass_init;
type_info.class_data = info;
@ -80,6 +80,11 @@ void qdev_register(DeviceInfo *info)
device_info_list = info;
}
void qdev_register(DeviceInfo *info)
{
qdev_register_subclass(info, TYPE_DEVICE);
}
static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name)
{
DeviceInfo *info;

1
hw/qdev.h
View File

@ -241,6 +241,7 @@ struct DeviceInfo {
extern DeviceInfo *device_info_list;
void qdev_register(DeviceInfo *info);
void qdev_register_subclass(DeviceInfo *info, const char *parent);
/* Register device properties. */
/* GPIO inputs also double as IRQ sinks. */