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/error-report.h" 14 #include "hw/sysbus.h" 15 #include "migration/qemu-file.h" 16 #include "hw/s390x/s390_flic.h" 17 #include "trace.h" 18 19 S390FLICState *s390_get_flic(void) 20 { 21 S390FLICState *fs; 22 23 fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL)); 24 if (!fs) { 25 fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC, NULL)); 26 } 27 return fs; 28 } 29 30 void s390_flic_init(void) 31 { 32 DeviceState *dev; 33 34 dev = s390_flic_kvm_create(); 35 if (!dev) { 36 dev = qdev_create(NULL, TYPE_QEMU_S390_FLIC); 37 object_property_add_child(qdev_get_machine(), TYPE_QEMU_S390_FLIC, 38 OBJECT(dev), NULL); 39 } 40 qdev_init_nofail(dev); 41 } 42 43 static int qemu_s390_register_io_adapter(S390FLICState *fs, uint32_t id, 44 uint8_t isc, bool swap, 45 bool is_maskable) 46 { 47 /* nothing to do */ 48 return 0; 49 } 50 51 static int qemu_s390_io_adapter_map(S390FLICState *fs, uint32_t id, 52 uint64_t map_addr, bool do_map) 53 { 54 /* nothing to do */ 55 return 0; 56 } 57 58 static int qemu_s390_add_adapter_routes(S390FLICState *fs, 59 AdapterRoutes *routes) 60 { 61 return -ENOSYS; 62 } 63 64 static void qemu_s390_release_adapter_routes(S390FLICState *fs, 65 AdapterRoutes *routes) 66 { 67 } 68 69 static void qemu_s390_flic_class_init(ObjectClass *oc, void *data) 70 { 71 S390FLICStateClass *fsc = S390_FLIC_COMMON_CLASS(oc); 72 73 fsc->register_io_adapter = qemu_s390_register_io_adapter; 74 fsc->io_adapter_map = qemu_s390_io_adapter_map; 75 fsc->add_adapter_routes = qemu_s390_add_adapter_routes; 76 fsc->release_adapter_routes = qemu_s390_release_adapter_routes; 77 } 78 79 static const TypeInfo qemu_s390_flic_info = { 80 .name = TYPE_QEMU_S390_FLIC, 81 .parent = TYPE_S390_FLIC_COMMON, 82 .instance_size = sizeof(QEMUS390FLICState), 83 .class_init = qemu_s390_flic_class_init, 84 }; 85 86 static const TypeInfo s390_flic_common_info = { 87 .name = TYPE_S390_FLIC_COMMON, 88 .parent = TYPE_SYS_BUS_DEVICE, 89 .instance_size = sizeof(S390FLICState), 90 .class_size = sizeof(S390FLICStateClass), 91 }; 92 93 static void qemu_s390_flic_register_types(void) 94 { 95 type_register_static(&s390_flic_common_info); 96 type_register_static(&qemu_s390_flic_info); 97 } 98 99 type_init(qemu_s390_flic_register_types) 100