/* icc_bus.c * emulate x86 ICC (Interrupt Controller Communications) bus * * Copyright (c) 2013 Red Hat, Inc * * Authors: * Igor Mammedov <imammedo@redhat.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see <http://www.gnu.org/licenses/> */ #include "hw/cpu/icc_bus.h" #include "hw/sysbus.h" /* icc-bridge implementation */ static void icc_bus_init(Object *obj) { BusState *b = BUS(obj); b->allow_hotplug = true; } static const TypeInfo icc_bus_info = { .name = TYPE_ICC_BUS, .parent = TYPE_BUS, .instance_size = sizeof(ICCBus), .instance_init = icc_bus_init, }; /* icc-device implementation */ static void icc_device_realize(DeviceState *dev, Error **errp) { ICCDevice *id = ICC_DEVICE(dev); ICCDeviceClass *idc = ICC_DEVICE_GET_CLASS(id); if (idc->init) { if (idc->init(id) < 0) { error_setg(errp, "%s initialization failed.", object_get_typename(OBJECT(dev))); } } } static void icc_device_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = icc_device_realize; dc->bus_type = TYPE_ICC_BUS; } static const TypeInfo icc_device_info = { .name = TYPE_ICC_DEVICE, .parent = TYPE_DEVICE, .abstract = true, .instance_size = sizeof(ICCDevice), .class_size = sizeof(ICCDeviceClass), .class_init = icc_device_class_init, }; /* icc-bridge implementation */ typedef struct ICCBridgeState { /*< private >*/ SysBusDevice parent_obj; /*< public >*/ ICCBus icc_bus; MemoryRegion apic_container; } ICCBridgeState; #define ICC_BRIGDE(obj) OBJECT_CHECK(ICCBridgeState, (obj), TYPE_ICC_BRIDGE) static void icc_bridge_init(Object *obj) { ICCBridgeState *s = ICC_BRIGDE(obj); SysBusDevice *sb = SYS_BUS_DEVICE(obj); qbus_create_inplace(&s->icc_bus, sizeof(s->icc_bus), TYPE_ICC_BUS, DEVICE(s), "icc"); /* Do not change order of registering regions, * APIC must be first registered region, board maps it by 0 index */ memory_region_init(&s->apic_container, obj, "icc-apic-container", APIC_SPACE_SIZE); sysbus_init_mmio(sb, &s->apic_container); s->icc_bus.apic_address_space = &s->apic_container; } static void icc_bridge_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); } static const TypeInfo icc_bridge_info = { .name = TYPE_ICC_BRIDGE, .parent = TYPE_SYS_BUS_DEVICE, .instance_init = icc_bridge_init, .instance_size = sizeof(ICCBridgeState), .class_init = icc_bridge_class_init, }; static void icc_bus_register_types(void) { type_register_static(&icc_bus_info); type_register_static(&icc_device_info); type_register_static(&icc_bridge_info); } type_init(icc_bus_register_types)