hw/intc/s390_flic.c

   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     int r;
  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     r = qdev_init(dev);
  42     if (r) {
  43         error_report("flic: couldn't create qdev");
  44     }
  45 }
  46
  47 static const TypeInfo qemu_s390_flic_info = {
  48     .name          = TYPE_QEMU_S390_FLIC,
  49     .parent        = TYPE_S390_FLIC_COMMON,
  50     .instance_size = sizeof(QEMUS390FLICState),
  51 };
  52
  53 static const TypeInfo s390_flic_common_info = {
  54     .name          = TYPE_S390_FLIC_COMMON,
  55     .parent        = TYPE_SYS_BUS_DEVICE,
  56     .instance_size = sizeof(S390FLICState),
  57     .class_size    = sizeof(S390FLICStateClass),
  58 };
  59
  60 static void qemu_s390_flic_register_types(void)
  61 {
  62     type_register_static(&s390_flic_common_info);
  63     type_register_static(&qemu_s390_flic_info);
  64 }
  65
  66 type_init(qemu_s390_flic_register_types)