1 /* 2 * QEMU S390x floating interrupt controller (flic) 3 * 4 * Copyright 2014 IBM Corp. 5 * Author(s): Jens Freimann <jfrei@linux.vnet.ibm.com> 6 * Cornelia Huck <cornelia.huck@de.ibm.com> 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or (at 9 * your option) any later version. See the COPYING file in the top-level 10 * directory. 11 */ 12 13 #include "qemu/osdep.h" 14 #include "qemu/error-report.h" 15 #include "hw/sysbus.h" 16 #include "migration/qemu-file.h" 17 #include "hw/s390x/s390_flic.h" 18 #include "trace.h" 19 20 S390FLICState *s390_get_flic(void) 21 { 22 S390FLICState *fs; 23 24 fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL)); 25 if (!fs) { 26 fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC, NULL)); 27 } 28 return fs; 29 } 30 31 void s390_flic_init(void) 32 { 33 DeviceState *dev; 34 35 dev = s390_flic_kvm_create(); 36 if (!dev) { 37 dev = qdev_create(NULL, TYPE_QEMU_S390_FLIC); 38 object_property_add_child(qdev_get_machine(), TYPE_QEMU_S390_FLIC, 39 OBJECT(dev), NULL); 40 } 41 qdev_init_nofail(dev); 42 } 43 44 static int qemu_s390_register_io_adapter(S390FLICState *fs, uint32_t id, 45 uint8_t isc, bool swap, 46 bool is_maskable) 47 { 48 /* nothing to do */ 49 return 0; 50 } 51 52 static int qemu_s390_io_adapter_map(S390FLICState *fs, uint32_t id, 53 uint64_t map_addr, bool do_map) 54 { 55 /* nothing to do */ 56 return 0; 57 } 58 59 static int qemu_s390_add_adapter_routes(S390FLICState *fs, 60 AdapterRoutes *routes) 61 { 62 return -ENOSYS; 63 } 64 65 static void qemu_s390_release_adapter_routes(S390FLICState *fs, 66 AdapterRoutes *routes) 67 { 68 } 69 70 static void qemu_s390_flic_class_init(ObjectClass *oc, void *data) 71 { 72 S390FLICStateClass *fsc = S390_FLIC_COMMON_CLASS(oc); 73 74 fsc->register_io_adapter = qemu_s390_register_io_adapter; 75 fsc->io_adapter_map = qemu_s390_io_adapter_map; 76 fsc->add_adapter_routes = qemu_s390_add_adapter_routes; 77 fsc->release_adapter_routes = qemu_s390_release_adapter_routes; 78 } 79 80 static const TypeInfo qemu_s390_flic_info = { 81 .name = TYPE_QEMU_S390_FLIC, 82 .parent = TYPE_S390_FLIC_COMMON, 83 .instance_size = sizeof(QEMUS390FLICState), 84 .class_init = qemu_s390_flic_class_init, 85 }; 86 87 static const TypeInfo s390_flic_common_info = { 88 .name = TYPE_S390_FLIC_COMMON, 89 .parent = TYPE_SYS_BUS_DEVICE, 90 .instance_size = sizeof(S390FLICState), 91 .class_size = sizeof(S390FLICStateClass), 92 }; 93 94 static void qemu_s390_flic_register_types(void) 95 { 96 type_register_static(&s390_flic_common_info); 97 type_register_static(&qemu_s390_flic_info); 98 } 99 100 type_init(qemu_s390_flic_register_types) 101