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/*
* QEMU S390x floating interrupt controller (flic)
*
* Copyright 2014 IBM Corp.
* Author(s): Jens Freimann <jfrei@linux.vnet.ibm.com>
* Cornelia Huck <cornelia.huck@de.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "hw/sysbus.h"
#include "hw/s390x/s390_flic.h"
#include "trace.h"
#include "hw/qdev.h"
#include "qapi/error.h"
S390FLICState *s390_get_flic(void)
{
static S390FLICState *fs;
if (!fs) {
fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL));
if (!fs) {
fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC,
NULL));
}
}
return fs;
}
void s390_flic_init(void)
{
DeviceState *dev;
dev = s390_flic_kvm_create();
if (!dev) {
dev = qdev_create(NULL, TYPE_QEMU_S390_FLIC);
object_property_add_child(qdev_get_machine(), TYPE_QEMU_S390_FLIC,
OBJECT(dev), NULL);
}
qdev_init_nofail(dev);
}
static int qemu_s390_register_io_adapter(S390FLICState *fs, uint32_t id,
uint8_t isc, bool swap,
bool is_maskable)
{
/* nothing to do */
return 0;
}
static int qemu_s390_io_adapter_map(S390FLICState *fs, uint32_t id,
uint64_t map_addr, bool do_map)
{
/* nothing to do */
return 0;
}
static int qemu_s390_add_adapter_routes(S390FLICState *fs,
AdapterRoutes *routes)
{
return -ENOSYS;
}
static void qemu_s390_release_adapter_routes(S390FLICState *fs,
AdapterRoutes *routes)
{
}
static int qemu_s390_clear_io_flic(S390FLICState *fs, uint16_t subchannel_id,
uint16_t subchannel_nr)
{
/* Fixme TCG */
return -ENOSYS;
}
static void qemu_s390_flic_class_init(ObjectClass *oc, void *data)
{
S390FLICStateClass *fsc = S390_FLIC_COMMON_CLASS(oc);
fsc->register_io_adapter = qemu_s390_register_io_adapter;
fsc->io_adapter_map = qemu_s390_io_adapter_map;
fsc->add_adapter_routes = qemu_s390_add_adapter_routes;
fsc->release_adapter_routes = qemu_s390_release_adapter_routes;
fsc->clear_io_irq = qemu_s390_clear_io_flic;
}
static Property s390_flic_common_properties[] = {
DEFINE_PROP_UINT32("adapter_routes_max_batch", S390FLICState,
adapter_routes_max_batch, ADAPTER_ROUTES_MAX_GSI),
DEFINE_PROP_END_OF_LIST(),
};
static void s390_flic_common_realize(DeviceState *dev, Error **errp)
{
uint32_t max_batch = S390_FLIC_COMMON(dev)->adapter_routes_max_batch;
if (max_batch > ADAPTER_ROUTES_MAX_GSI) {
error_setg(errp, "flic adapter_routes_max_batch too big"
"%d (%d allowed)", max_batch, ADAPTER_ROUTES_MAX_GSI);
}
}
static void s390_flic_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->props = s390_flic_common_properties;
dc->realize = s390_flic_common_realize;
}
static const TypeInfo qemu_s390_flic_info = {
.name = TYPE_QEMU_S390_FLIC,
.parent = TYPE_S390_FLIC_COMMON,
.instance_size = sizeof(QEMUS390FLICState),
.class_init = qemu_s390_flic_class_init,
};
static const TypeInfo s390_flic_common_info = {
.name = TYPE_S390_FLIC_COMMON,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(S390FLICState),
.class_init = s390_flic_class_init,
.class_size = sizeof(S390FLICStateClass),
};
static void qemu_s390_flic_register_types(void)
{
type_register_static(&s390_flic_common_info);
type_register_static(&qemu_s390_flic_info);
}
type_init(qemu_s390_flic_register_types)
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