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qdev: remove info from class

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Now DeviceInfo is no longer used after object construction.  All of the
relevant members have been moved to DeviceClass.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori 2011-12-09 11:06:57 -06:00
parent 4be9f0d11c
commit 6e008585eb
3 changed files with 80 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
hw/pci.c
View File

@ -1467,7 +1467,9 @@ static int pci_qdev_init(DeviceState *qdev, DeviceInfo *base)
}
bus = FROM_QBUS(PCIBus, qdev_get_parent_bus(qdev));
pci_dev = do_pci_register_device(pci_dev, bus, base->name, pci_dev->devfn);
pci_dev = do_pci_register_device(pci_dev, bus,
object_get_typename(OBJECT(qdev)),
pci_dev->devfn);
if (pci_dev == NULL)
return -1;
if (qdev->hotplugged && pc->no_hotplug) {

94
hw/qdev.c
View File

@ -48,46 +48,54 @@ static BusState *qbus_find(const char *path);
static void qdev_subclass_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
DeviceInfo *info = data;
dc->info = data;
dc->reset = dc->info->reset;
dc->fw_name = info->fw_name;
dc->alias = info->alias;
dc->desc = info->desc;
dc->props = info->props;
dc->no_user = info->no_user;
/* Poison to try to detect future uses */
dc->info->reset = NULL;
dc->reset = info->reset;
if (dc->info->class_init) {
dc->info->class_init(klass, data);
dc->vmsd = info->vmsd;
dc->init = info->init;
dc->unplug = info->unplug;
dc->exit = info->exit;
dc->bus_info = info->bus_info;
if (info->class_init) {
info->class_init(klass, data);
}
}
static DeviceInfo *qdev_get_info(DeviceState *dev)
{
return DEVICE_GET_CLASS(dev)->info;
}
const VMStateDescription *qdev_get_vmsd(DeviceState *dev)
{
return qdev_get_info(dev)->vmsd;
DeviceClass *dc = DEVICE_GET_CLASS(dev);
return dc->vmsd;
}
BusInfo *qdev_get_bus_info(DeviceState *dev)
{
return qdev_get_info(dev)->bus_info;
DeviceClass *dc = DEVICE_GET_CLASS(dev);
return dc->bus_info;
}
Property *qdev_get_props(DeviceState *dev)
{
return qdev_get_info(dev)->props;
DeviceClass *dc = DEVICE_GET_CLASS(dev);
return dc->props;
}
const char *qdev_fw_name(DeviceState *dev)
{
DeviceInfo *info = qdev_get_info(dev);
DeviceClass *dc = DEVICE_GET_CLASS(dev);
if (info->fw_name) {
return info->fw_name;
} else if (info->alias) {
return info->alias;
if (dc->fw_name) {
return dc->fw_name;
} else if (dc->alias) {
return dc->alias;
}
return object_get_typename(OBJECT(dev));
@ -159,7 +167,7 @@ static DeviceState *qdev_create_from_info(BusState *bus, DeviceInfo *info)
assert(bus->info == info->bus_info);
dev = DEVICE(object_new(info->name));
dev->parent_bus = bus;
qdev_prop_set_defaults(dev, qdev_get_info(dev)->props);
qdev_prop_set_defaults(dev, qdev_get_props(dev));
qdev_prop_set_defaults(dev, dev->parent_bus->info->props);
qdev_prop_set_globals(dev);
QTAILQ_INSERT_HEAD(&bus->children, dev, sibling);
@ -172,12 +180,12 @@ static DeviceState *qdev_create_from_info(BusState *bus, DeviceInfo *info)
QTAILQ_INIT(&dev->properties);
dev->state = DEV_STATE_CREATED;
for (prop = qdev_get_info(dev)->props; prop && prop->name; prop++) {
for (prop = qdev_get_props(dev); prop && prop->name; prop++) {
qdev_property_add_legacy(dev, prop, NULL);
qdev_property_add_static(dev, prop, NULL);
}
for (prop = qdev_get_info(dev)->bus_info->props; prop && prop->name; prop++) {
for (prop = qdev_get_bus_info(dev)->props; prop && prop->name; prop++) {
qdev_property_add_legacy(dev, prop, NULL);
qdev_property_add_static(dev, prop, NULL);
}
@ -407,16 +415,19 @@ DeviceState *qdev_device_add(QemuOpts *opts)
Return 0 on success. */
int qdev_init(DeviceState *dev)
{
DeviceClass *dc = DEVICE_GET_CLASS(dev);
int rc;
assert(dev->state == DEV_STATE_CREATED);
rc = qdev_get_info(dev)->init(dev, qdev_get_info(dev));
/* FIXME hopefully this doesn't break anything */
rc = dc->init(dev, NULL);
if (rc < 0) {
qdev_free(dev);
return rc;
}
if (qdev_get_info(dev)->vmsd) {
vmstate_register_with_alias_id(dev, -1, qdev_get_info(dev)->vmsd, dev,
if (qdev_get_vmsd(dev)) {
vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev,
dev->instance_id_alias,
dev->alias_required_for_version);
}
@ -437,15 +448,17 @@ void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
int qdev_unplug(DeviceState *dev)
{
DeviceClass *dc = DEVICE_GET_CLASS(dev);
if (!dev->parent_bus->allow_hotplug) {
qerror_report(QERR_BUS_NO_HOTPLUG, dev->parent_bus->name);
return -1;
}
assert(qdev_get_info(dev)->unplug != NULL);
assert(dc->unplug != NULL);
qdev_hot_removed = true;
return qdev_get_info(dev)->unplug(dev);
return dc->unplug(dev);
}
static int qdev_reset_one(DeviceState *dev, void *opaque)
@ -500,10 +513,9 @@ int qdev_simple_unplug_cb(DeviceState *dev)
way is somewhat unclean, and best avoided. */
void qdev_init_nofail(DeviceState *dev)
{
DeviceInfo *info = qdev_get_info(dev);
if (qdev_init(dev) < 0) {
error_report("Initialization of device %s failed", info->name);
error_report("Initialization of device %s failed",
object_get_typename(OBJECT(dev)));
exit(1);
}
}
@ -553,6 +565,7 @@ void qdev_free(DeviceState *dev)
{
BusState *bus;
Property *prop;
DeviceClass *dc = DEVICE_GET_CLASS(dev);
qdev_property_del_all(dev);
@ -561,15 +574,18 @@ void qdev_free(DeviceState *dev)
bus = QLIST_FIRST(&dev->child_bus);
qbus_free(bus);
}
if (qdev_get_info(dev)->vmsd)
vmstate_unregister(dev, qdev_get_info(dev)->vmsd, dev);
if (qdev_get_info(dev)->exit)
qdev_get_info(dev)->exit(dev);
if (dev->opts)
if (qdev_get_vmsd(dev)) {
vmstate_unregister(dev, qdev_get_vmsd(dev), dev);
}
if (dc->exit) {
dc->exit(dev);
}
if (dev->opts) {
qemu_opts_del(dev->opts);
}
}
QTAILQ_REMOVE(&dev->parent_bus->children, dev, sibling);
for (prop = qdev_get_info(dev)->props; prop && prop->name; prop++) {
for (prop = qdev_get_props(dev); prop && prop->name; prop++) {
if (prop->info->free) {
prop->info->free(dev, prop);
}
@ -817,7 +833,9 @@ static DeviceState *qbus_find_dev(BusState *bus, char *elem)
}
}
QTAILQ_FOREACH(dev, &bus->children, sibling) {
if (qdev_get_info(dev)->alias && strcmp(qdev_get_info(dev)->alias, elem) == 0) {
DeviceClass *dc = DEVICE_GET_CLASS(dev);
if (dc->alias && strcmp(dc->alias, elem) == 0) {
return dev;
}
}
@ -1028,7 +1046,7 @@ static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
if (dev->num_gpio_out) {
qdev_printf("gpio-out %d\n", dev->num_gpio_out);
}
qdev_print_props(mon, dev, qdev_get_info(dev)->props, "dev", indent);
qdev_print_props(mon, dev, qdev_get_props(dev), "dev", indent);
qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent);
if (dev->parent_bus->info->print_dev)
dev->parent_bus->info->print_dev(mon, dev, indent);

26
hw/qdev.h
View File

@ -72,10 +72,30 @@ typedef struct DeviceProperty
#define DEVICE_CLASS(klass) OBJECT_CLASS_CHECK(DeviceClass, (klass), TYPE_DEVICE)
#define DEVICE_GET_CLASS(obj) OBJECT_GET_CLASS(DeviceClass, (obj), TYPE_DEVICE)
typedef int (*qdev_initfn)(DeviceState *dev, DeviceInfo *info);
typedef int (*qdev_event)(DeviceState *dev);
typedef void (*qdev_resetfn)(DeviceState *dev);
typedef struct DeviceClass {
ObjectClass parent_class;
DeviceInfo *info;
const char *fw_name;
const char *alias;
const char *desc;
Property *props;
int no_user;
/* callbacks */
void (*reset)(DeviceState *dev);
/* device state */
const VMStateDescription *vmsd;
/* Private to qdev / bus. */
qdev_initfn init;
qdev_event unplug;
qdev_event exit;
BusInfo *bus_info;
} DeviceClass;
/* This structure should not be accessed directly. We declare it here
@ -213,10 +233,6 @@ BusState *qdev_get_child_bus(DeviceState *dev, const char *name);
/*** Device API. ***/
typedef int (*qdev_initfn)(DeviceState *dev, DeviceInfo *info);
typedef int (*qdev_event)(DeviceState *dev);
typedef void (*qdev_resetfn)(DeviceState *dev);
struct DeviceInfo {
const char *name;
const char *fw_name;