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s390/sclp: introduce a root sclp device

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Let's create a root sclp device, which has other sclp devices as
children (e.g. the event facility for now) and can later be used
for migration of sclp specific attributes and setup of memory.

Reviewed-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
David Hildenbrand 2015-05-27 09:49:43 +02:00 committed by Cornelia Huck
parent 732bdd383e
commit 515190d9da
3 changed files with 78 additions and 11 deletions
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65
hw/s390x/sclp.c
View file

@ -24,11 +24,8 @@
static inline SCLPEventFacility *get_event_facility(void)
{
ObjectProperty *op = object_property_find(qdev_get_machine(),
TYPE_SCLP_EVENT_FACILITY,
NULL);
assert(op);
return op->opaque;
return EVENT_FACILITY(object_resolve_path_type("", TYPE_SCLP_EVENT_FACILITY,
NULL));
}
/* Provide information about the configuration, CPUs and storage */
@ -438,13 +435,62 @@ void sclp_service_interrupt(uint32_t sccb)
void s390_sclp_init(void)
{
DeviceState *dev = qdev_create(NULL, TYPE_SCLP_EVENT_FACILITY);
Object *new = object_new(TYPE_SCLP);
object_property_add_child(qdev_get_machine(), TYPE_SCLP_EVENT_FACILITY,
OBJECT(dev), NULL);
qdev_init_nofail(dev);
object_property_add_child(qdev_get_machine(), TYPE_SCLP, new,
NULL);
object_unref(OBJECT(new));
qdev_init_nofail(DEVICE(new));
}
static void sclp_realize(DeviceState *dev, Error **errp)
{
SCLPDevice *sclp = SCLP(dev);
Error *l_err = NULL;
object_property_set_bool(OBJECT(sclp->event_facility), true, "realized",
&l_err);
if (l_err) {
goto error;
}
return;
error:
assert(l_err);
error_propagate(errp, l_err);
}
static void sclp_init(Object *obj)
{
SCLPDevice *sclp = SCLP(obj);
Object *new;
new = object_new(TYPE_SCLP_EVENT_FACILITY);
object_property_add_child(obj, TYPE_SCLP_EVENT_FACILITY, new, NULL);
/* qdev_device_add searches the sysbus for TYPE_SCLP_EVENTS_BUS */
qdev_set_parent_bus(DEVICE(new), sysbus_get_default());
object_unref(new);
sclp->event_facility = EVENT_FACILITY(new);
}
static void sclp_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->desc = "SCLP (Service-Call Logical Processor)";
dc->realize = sclp_realize;
dc->hotpluggable = false;
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
}
static TypeInfo sclp_info = {
.name = TYPE_SCLP,
.parent = TYPE_DEVICE,
.instance_init = sclp_init,
.instance_size = sizeof(SCLPDevice),
.class_init = sclp_class_init,
.class_size = sizeof(SCLPDeviceClass),
};
sclpMemoryHotplugDev *init_sclp_memory_hotplug_dev(void)
{
DeviceState *dev;
@ -481,5 +527,6 @@ static TypeInfo sclp_memory_hotplug_dev_info = {
static void register_types(void)
{
type_register_static(&sclp_memory_hotplug_dev_info);
type_register_static(&sclp_info);
}
type_init(register_types);

2
include/hw/s390x/event-facility.h
View file

@ -189,8 +189,6 @@ typedef struct SCLPEventClass {
OBJECT_GET_CLASS(SCLPEventFacilityClass, (obj), \
TYPE_SCLP_EVENT_FACILITY)
typedef struct SCLPEventFacility SCLPEventFacility;
typedef struct SCLPEventFacilityClass {
SysBusDeviceClass parent_class;
void (*command_handler)(SCLPEventFacility *ef, SCCB *sccb, uint64_t code);

22
include/hw/s390x/sclp.h
View file

@ -163,6 +163,28 @@ typedef struct SCCB {
char data[SCCB_DATA_LEN];
} QEMU_PACKED SCCB;
#define TYPE_SCLP "sclp"
#define SCLP(obj) OBJECT_CHECK(SCLPDevice, (obj), TYPE_SCLP)
#define SCLP_CLASS(oc) OBJECT_CLASS_CHECK(SCLPDeviceClass, (oc), TYPE_SCLP)
#define SCLP_GET_CLASS(obj) OBJECT_GET_CLASS(SCLPDeviceClass, (obj), TYPE_SCLP)
typedef struct SCLPEventFacility SCLPEventFacility;
typedef struct SCLPDevice {
/* private */
DeviceState parent_obj;
SCLPEventFacility *event_facility;
/* public */
} SCLPDevice;
typedef struct SCLPDeviceClass {
/* private */
DeviceClass parent_class;
/* public */
} SCLPDeviceClass;
typedef struct sclpMemoryHotplugDev sclpMemoryHotplugDev;
#define TYPE_SCLP_MEMORY_HOTPLUG_DEV "sclp-memory-hotplug-dev"