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qdev: Move SysBus initialization to sysbus.c 

TYPE_SYSTEM_BUS will be local to hw/sysbus.c, so move existing references
to main_system_bus and system_bus_info there.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Paolo Bonzini 2012-05-02 12:06:55 +02:00 committed by Andreas Färber
parent 09e5ab6360
commit 8185d21639
2 changed files with 23 additions and 24 deletions
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26
hw/qdev.c
View File

@ -34,10 +34,6 @@ int qdev_hotplug = 0;
static bool qdev_hot_added = false; static bool qdev_hot_added = false;
static bool qdev_hot_removed = false; static bool qdev_hot_removed = false;
/* 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);
/* Register a new device type. */ /* Register a new device type. */
const VMStateDescription *qdev_get_vmsd(DeviceState *dev) const VMStateDescription *qdev_get_vmsd(DeviceState *dev)
{ {
@ -188,14 +184,6 @@ static int qdev_reset_one(DeviceState *dev, void *opaque)
return 0; return 0;
} }
BusState *sysbus_get_default(void)
{
if (!main_system_bus) {
main_system_bus_create();
}
return main_system_bus;
}
static int qbus_reset_one(BusState *bus, void *opaque) static int qbus_reset_one(BusState *bus, void *opaque)
{ {
if (bus->info->reset) { if (bus->info->reset) {
@ -415,7 +403,7 @@ void qbus_create_inplace(BusState *bus, BusInfo *info,
if (parent) { if (parent) {
QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling);
parent->num_child_bus++; parent->num_child_bus++;
} else if (bus != main_system_bus) { } else if (bus != sysbus_get_default()) {
/* TODO: once all bus devices are qdevified, /* TODO: once all bus devices are qdevified,
only reset handler for main_system_bus should be registered here. */ only reset handler for main_system_bus should be registered here. */
qemu_register_reset(qbus_reset_all_fn, bus); qemu_register_reset(qbus_reset_all_fn, bus);
@ -432,16 +420,6 @@ BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name)
return bus; return bus;
} }
static void main_system_bus_create(void)
{
/* assign main_system_bus before qbus_create_inplace()
* in order to make "if (bus != main_system_bus)" work */
main_system_bus = g_malloc0(system_bus_info.size);
main_system_bus->qdev_allocated = 1;
qbus_create_inplace(main_system_bus, &system_bus_info, NULL,
"main-system-bus");
}
void qbus_free(BusState *bus) void qbus_free(BusState *bus)
{ {
DeviceState *dev; DeviceState *dev;
@ -453,7 +431,7 @@ void qbus_free(BusState *bus)
QLIST_REMOVE(bus, sibling); QLIST_REMOVE(bus, sibling);
bus->parent->num_child_bus--; bus->parent->num_child_bus--;
} else { } else {
assert(bus != main_system_bus); /* main_system_bus is never freed */ assert(bus != sysbus_get_default()); /* main_system_bus is never freed */
qemu_unregister_reset(qbus_reset_all_fn, bus); qemu_unregister_reset(qbus_reset_all_fn, bus);
} }
g_free((void*)bus->name); g_free((void*)bus->name);

21
hw/sysbus.c
View File

@ -256,6 +256,27 @@ static TypeInfo sysbus_device_type_info = {
.class_init = sysbus_device_class_init, .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.size);
main_system_bus->qdev_allocated = 1;
qbus_create_inplace(main_system_bus, &system_bus_info, NULL,
"main-system-bus");
}
BusState *sysbus_get_default(void)
{
if (!main_system_bus) {
main_system_bus_create();
}
return main_system_bus;
}
static void sysbus_register_types(void) static void sysbus_register_types(void)
{ {
type_register_static(&sysbus_device_type_info); type_register_static(&sysbus_device_type_info);