hw/s390x/sclp.c

   1 /*
   2  * SCLP Support
   3  *
   4  * Copyright IBM, Corp. 2012
   5  *
   6  * Authors:
   7  *  Christian Borntraeger <borntraeger@de.ibm.com>
   8  *  Heinz Graalfs <graalfs@linux.vnet.ibm.com>
   9  *
  10  * This work is licensed under the terms of the GNU GPL, version 2 or (at your
  11  * option) any later version.  See the COPYING file in the top-level directory.
  12  *
  13  */
  14
  15 #include "qemu/osdep.h"
  16 #include "qapi/error.h"
  17 #include "cpu.h"
  18 #include "sysemu/kvm.h"
  19 #include "exec/memory.h"
  20 #include "sysemu/sysemu.h"
  21 #include "exec/address-spaces.h"
  22 #include "hw/boards.h"
  23 #include "hw/s390x/sclp.h"
  24 #include "hw/s390x/event-facility.h"
  25 #include "hw/s390x/s390-pci-bus.h"
  26
  27 static inline SCLPDevice *get_sclp_device(void)
  28 {
  29     static SCLPDevice *sclp;
  30
  31     if (!sclp) {
  32         sclp = SCLP(object_resolve_path_type("", TYPE_SCLP, NULL));
  33     }
  34     return sclp;
  35 }
  36
  37 static void prepare_cpu_entries(SCLPDevice *sclp, CPUEntry *entry, int count)
  38 {
  39     uint8_t features[SCCB_CPU_FEATURE_LEN] = { 0 };
  40     int i;
  41
  42     s390_get_feat_block(S390_FEAT_TYPE_SCLP_CPU, features);
  43     for (i = 0; i < count; i++) {
  44         entry[i].address = i;
  45         entry[i].type = 0;
  46         memcpy(entry[i].features, features, sizeof(entry[i].features));
  47     }
  48 }
  49
  50 /* Provide information about the configuration, CPUs and storage */
  51 static void read_SCP_info(SCLPDevice *sclp, SCCB *sccb)
  52 {
  53     ReadInfo *read_info = (ReadInfo *) sccb;
  54     MachineState *machine = MACHINE(qdev_get_machine());
  55     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
  56     CPUState *cpu;
  57     int cpu_count = 0;
  58     int rnsize, rnmax;
  59     int slots = MIN(machine->ram_slots, s390_get_memslot_count(kvm_state));
  60
  61     CPU_FOREACH(cpu) {
  62         cpu_count++;
  63     }
  64
  65     /* CPU information */
  66     read_info->entries_cpu = cpu_to_be16(cpu_count);
  67     read_info->offset_cpu = cpu_to_be16(offsetof(ReadInfo, entries));
  68     read_info->highest_cpu = cpu_to_be16(max_cpus);
  69
  70     /* Configuration Characteristic (Extension) */
  71     s390_get_feat_block(S390_FEAT_TYPE_SCLP_CONF_CHAR,
  72                          read_info->conf_char);
  73     s390_get_feat_block(S390_FEAT_TYPE_SCLP_CONF_CHAR_EXT,
  74                          read_info->conf_char_ext);
  75
  76     prepare_cpu_entries(sclp, read_info->entries, cpu_count);
  77
  78     read_info->facilities = cpu_to_be64(SCLP_HAS_CPU_INFO |
  79                                         SCLP_HAS_PCI_RECONFIG);
  80
  81     /* Memory Hotplug is only supported for the ccw machine type */
  82     if (mhd) {
  83         mhd->standby_subregion_size = MEM_SECTION_SIZE;
  84         /* Deduct the memory slot already used for core */
  85         if (slots > 0) {
  86             while ((mhd->standby_subregion_size * (slots - 1)
  87                     < mhd->standby_mem_size)) {
  88                 mhd->standby_subregion_size = mhd->standby_subregion_size << 1;
  89             }
  90         }
  91         /*
  92          * Initialize mapping of guest standby memory sections indicating which
  93          * are and are not online. Assume all standby memory begins offline.
  94          */
  95         if (mhd->standby_state_map == 0) {
  96             if (mhd->standby_mem_size % mhd->standby_subregion_size) {
  97                 mhd->standby_state_map = g_malloc0((mhd->standby_mem_size /
  98                                              mhd->standby_subregion_size + 1) *
  99                                              (mhd->standby_subregion_size /
 100                                              MEM_SECTION_SIZE));
 101             } else {
 102                 mhd->standby_state_map = g_malloc0(mhd->standby_mem_size /
 103                                                    MEM_SECTION_SIZE);
 104             }
 105         }
 106         mhd->padded_ram_size = ram_size + mhd->pad_size;
 107         mhd->rzm = 1 << mhd->increment_size;
 108
 109         read_info->facilities |= cpu_to_be64(SCLP_FC_ASSIGN_ATTACH_READ_STOR);
 110     }
 111
 112     rnsize = 1 << (sclp->increment_size - 20);
 113     if (rnsize <= 128) {
 114         read_info->rnsize = rnsize;
 115     } else {
 116         read_info->rnsize = 0;
 117         read_info->rnsize2 = cpu_to_be32(rnsize);
 118     }
 119
 120     rnmax = machine->maxram_size >> sclp->increment_size;
 121     if (rnmax < 0x10000) {
 122         read_info->rnmax = cpu_to_be16(rnmax);
 123     } else {
 124         read_info->rnmax = cpu_to_be16(0);
 125         read_info->rnmax2 = cpu_to_be64(rnmax);
 126     }
 127
 128     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_READ_COMPLETION);
 129 }
 130
 131 static void read_storage_element0_info(SCLPDevice *sclp, SCCB *sccb)
 132 {
 133     int i, assigned;
 134     int subincrement_id = SCLP_STARTING_SUBINCREMENT_ID;
 135     ReadStorageElementInfo *storage_info = (ReadStorageElementInfo *) sccb;
 136     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 137
 138     if (!mhd) {
 139         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 140         return;
 141     }
 142
 143     if ((ram_size >> mhd->increment_size) >= 0x10000) {
 144         sccb->h.response_code = cpu_to_be16(SCLP_RC_SCCB_BOUNDARY_VIOLATION);
 145         return;
 146     }
 147
 148     /* Return information regarding core memory */
 149     storage_info->max_id = cpu_to_be16(mhd->standby_mem_size ? 1 : 0);
 150     assigned = ram_size >> mhd->increment_size;
 151     storage_info->assigned = cpu_to_be16(assigned);
 152
 153     for (i = 0; i < assigned; i++) {
 154         storage_info->entries[i] = cpu_to_be32(subincrement_id);
 155         subincrement_id += SCLP_INCREMENT_UNIT;
 156     }
 157     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_READ_COMPLETION);
 158 }
 159
 160 static void read_storage_element1_info(SCLPDevice *sclp, SCCB *sccb)
 161 {
 162     ReadStorageElementInfo *storage_info = (ReadStorageElementInfo *) sccb;
 163     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 164
 165     if (!mhd) {
 166         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 167         return;
 168     }
 169
 170     if ((mhd->standby_mem_size >> mhd->increment_size) >= 0x10000) {
 171         sccb->h.response_code = cpu_to_be16(SCLP_RC_SCCB_BOUNDARY_VIOLATION);
 172         return;
 173     }
 174
 175     /* Return information regarding standby memory */
 176     storage_info->max_id = cpu_to_be16(mhd->standby_mem_size ? 1 : 0);
 177     storage_info->assigned = cpu_to_be16(mhd->standby_mem_size >>
 178                                          mhd->increment_size);
 179     storage_info->standby = cpu_to_be16(mhd->standby_mem_size >>
 180                                         mhd->increment_size);
 181     sccb->h.response_code = cpu_to_be16(SCLP_RC_STANDBY_READ_COMPLETION);
 182 }
 183
 184 static void attach_storage_element(SCLPDevice *sclp, SCCB *sccb,
 185                                    uint16_t element)
 186 {
 187     int i, assigned, subincrement_id;
 188     AttachStorageElement *attach_info = (AttachStorageElement *) sccb;
 189     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 190
 191     if (!mhd) {
 192         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 193         return;
 194     }
 195
 196     if (element != 1) {
 197         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 198         return;
 199     }
 200
 201     assigned = mhd->standby_mem_size >> mhd->increment_size;
 202     attach_info->assigned = cpu_to_be16(assigned);
 203     subincrement_id = ((ram_size >> mhd->increment_size) << 16)
 204                       + SCLP_STARTING_SUBINCREMENT_ID;
 205     for (i = 0; i < assigned; i++) {
 206         attach_info->entries[i] = cpu_to_be32(subincrement_id);
 207         subincrement_id += SCLP_INCREMENT_UNIT;
 208     }
 209     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_COMPLETION);
 210 }
 211
 212 static void assign_storage(SCLPDevice *sclp, SCCB *sccb)
 213 {
 214     MemoryRegion *mr = NULL;
 215     uint64_t this_subregion_size;
 216     AssignStorage *assign_info = (AssignStorage *) sccb;
 217     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 218     ram_addr_t assign_addr;
 219     MemoryRegion *sysmem = get_system_memory();
 220
 221     if (!mhd) {
 222         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 223         return;
 224     }
 225     assign_addr = (assign_info->rn - 1) * mhd->rzm;
 226
 227     if ((assign_addr % MEM_SECTION_SIZE == 0) &&
 228         (assign_addr >= mhd->padded_ram_size)) {
 229         /* Re-use existing memory region if found */
 230         mr = memory_region_find(sysmem, assign_addr, 1).mr;
 231         memory_region_unref(mr);
 232         if (!mr) {
 233
 234             MemoryRegion *standby_ram = g_new(MemoryRegion, 1);
 235
 236             /* offset to align to standby_subregion_size for allocation */
 237             ram_addr_t offset = assign_addr -
 238                                 (assign_addr - mhd->padded_ram_size)
 239                                 % mhd->standby_subregion_size;
 240
 241             /* strlen("standby.ram") + 4 (Max of KVM_MEMORY_SLOTS) +  NULL */
 242             char id[16];
 243             snprintf(id, 16, "standby.ram%d",
 244                      (int)((offset - mhd->padded_ram_size) /
 245                      mhd->standby_subregion_size) + 1);
 246
 247             /* Allocate a subregion of the calculated standby_subregion_size */
 248             if (offset + mhd->standby_subregion_size >
 249                 mhd->padded_ram_size + mhd->standby_mem_size) {
 250                 this_subregion_size = mhd->padded_ram_size +
 251                   mhd->standby_mem_size - offset;
 252             } else {
 253                 this_subregion_size = mhd->standby_subregion_size;
 254             }
 255
 256             memory_region_init_ram(standby_ram, NULL, id, this_subregion_size,
 257                                    &error_fatal);
 258             /* This is a hack to make memory hotunplug work again. Once we have
 259              * subdevices, we have to unparent them when unassigning memory,
 260              * instead of doing it via the ref count of the MemoryRegion. */
 261             object_ref(OBJECT(standby_ram));
 262             object_unparent(OBJECT(standby_ram));
 263             vmstate_register_ram_global(standby_ram);
 264             memory_region_add_subregion(sysmem, offset, standby_ram);
 265         }
 266         /* The specified subregion is no longer in standby */
 267         mhd->standby_state_map[(assign_addr - mhd->padded_ram_size)
 268                                / MEM_SECTION_SIZE] = 1;
 269     }
 270     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_COMPLETION);
 271 }
 272
 273 static void unassign_storage(SCLPDevice *sclp, SCCB *sccb)
 274 {
 275     MemoryRegion *mr = NULL;
 276     AssignStorage *assign_info = (AssignStorage *) sccb;
 277     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 278     ram_addr_t unassign_addr;
 279     MemoryRegion *sysmem = get_system_memory();
 280
 281     if (!mhd) {
 282         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 283         return;
 284     }
 285     unassign_addr = (assign_info->rn - 1) * mhd->rzm;
 286
 287     /* if the addr is a multiple of 256 MB */
 288     if ((unassign_addr % MEM_SECTION_SIZE == 0) &&
 289         (unassign_addr >= mhd->padded_ram_size)) {
 290         mhd->standby_state_map[(unassign_addr -
 291                            mhd->padded_ram_size) / MEM_SECTION_SIZE] = 0;
 292
 293         /* find the specified memory region and destroy it */
 294         mr = memory_region_find(sysmem, unassign_addr, 1).mr;
 295         memory_region_unref(mr);
 296         if (mr) {
 297             int i;
 298             int is_removable = 1;
 299             ram_addr_t map_offset = (unassign_addr - mhd->padded_ram_size -
 300                                      (unassign_addr - mhd->padded_ram_size)
 301                                      % mhd->standby_subregion_size);
 302             /* Mark all affected subregions as 'standby' once again */
 303             for (i = 0;
 304                  i < (mhd->standby_subregion_size / MEM_SECTION_SIZE);
 305                  i++) {
 306
 307                 if (mhd->standby_state_map[i + map_offset / MEM_SECTION_SIZE]) {
 308                     is_removable = 0;
 309                     break;
 310                 }
 311             }
 312             if (is_removable) {
 313                 memory_region_del_subregion(sysmem, mr);
 314                 object_unref(OBJECT(mr));
 315             }
 316         }
 317     }
 318     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_COMPLETION);
 319 }
 320
 321 /* Provide information about the CPU */
 322 static void sclp_read_cpu_info(SCLPDevice *sclp, SCCB *sccb)
 323 {
 324     ReadCpuInfo *cpu_info = (ReadCpuInfo *) sccb;
 325     CPUState *cpu;
 326     int cpu_count = 0;
 327
 328     CPU_FOREACH(cpu) {
 329         cpu_count++;
 330     }
 331
 332     cpu_info->nr_configured = cpu_to_be16(cpu_count);
 333     cpu_info->offset_configured = cpu_to_be16(offsetof(ReadCpuInfo, entries));
 334     cpu_info->nr_standby = cpu_to_be16(0);
 335
 336     /* The standby offset is 16-byte for each CPU */
 337     cpu_info->offset_standby = cpu_to_be16(cpu_info->offset_configured
 338         + cpu_info->nr_configured*sizeof(CPUEntry));
 339
 340     prepare_cpu_entries(sclp, cpu_info->entries, cpu_count);
 341
 342     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_READ_COMPLETION);
 343 }
 344
 345 static void sclp_execute(SCLPDevice *sclp, SCCB *sccb, uint32_t code)
 346 {
 347     SCLPDeviceClass *sclp_c = SCLP_GET_CLASS(sclp);
 348     SCLPEventFacility *ef = sclp->event_facility;
 349     SCLPEventFacilityClass *efc = EVENT_FACILITY_GET_CLASS(ef);
 350
 351     switch (code & SCLP_CMD_CODE_MASK) {
 352     case SCLP_CMDW_READ_SCP_INFO:
 353     case SCLP_CMDW_READ_SCP_INFO_FORCED:
 354         sclp_c->read_SCP_info(sclp, sccb);
 355         break;
 356     case SCLP_CMDW_READ_CPU_INFO:
 357         sclp_c->read_cpu_info(sclp, sccb);
 358         break;
 359     case SCLP_READ_STORAGE_ELEMENT_INFO:
 360         if (code & 0xff00) {
 361             sclp_c->read_storage_element1_info(sclp, sccb);
 362         } else {
 363             sclp_c->read_storage_element0_info(sclp, sccb);
 364         }
 365         break;
 366     case SCLP_ATTACH_STORAGE_ELEMENT:
 367         sclp_c->attach_storage_element(sclp, sccb, (code & 0xff00) >> 8);
 368         break;
 369     case SCLP_ASSIGN_STORAGE:
 370         sclp_c->assign_storage(sclp, sccb);
 371         break;
 372     case SCLP_UNASSIGN_STORAGE:
 373         sclp_c->unassign_storage(sclp, sccb);
 374         break;
 375     case SCLP_CMDW_CONFIGURE_PCI:
 376         s390_pci_sclp_configure(sccb);
 377         break;
 378     case SCLP_CMDW_DECONFIGURE_PCI:
 379         s390_pci_sclp_deconfigure(sccb);
 380         break;
 381     default:
 382         efc->command_handler(ef, sccb, code);
 383         break;
 384     }
 385 }
 386
 387 int sclp_service_call(CPUS390XState *env, uint64_t sccb, uint32_t code)
 388 {
 389     SCLPDevice *sclp = get_sclp_device();
 390     SCLPDeviceClass *sclp_c = SCLP_GET_CLASS(sclp);
 391     int r = 0;
 392     SCCB work_sccb;
 393
 394     hwaddr sccb_len = sizeof(SCCB);
 395
 396     /* first some basic checks on program checks */
 397     if (env->psw.mask & PSW_MASK_PSTATE) {
 398         r = -PGM_PRIVILEGED;
 399         goto out;
 400     }
 401     if (cpu_physical_memory_is_io(sccb)) {
 402         r = -PGM_ADDRESSING;
 403         goto out;
 404     }
 405     if ((sccb & ~0x1fffUL) == 0 || (sccb & ~0x1fffUL) == env->psa
 406         || (sccb & ~0x7ffffff8UL) != 0) {
 407         r = -PGM_SPECIFICATION;
 408         goto out;
 409     }
 410
 411     /*
 412      * we want to work on a private copy of the sccb, to prevent guests
 413      * from playing dirty tricks by modifying the memory content after
 414      * the host has checked the values
 415      */
 416     cpu_physical_memory_read(sccb, &work_sccb, sccb_len);
 417
 418     /* Valid sccb sizes */
 419     if (be16_to_cpu(work_sccb.h.length) < sizeof(SCCBHeader) ||
 420         be16_to_cpu(work_sccb.h.length) > SCCB_SIZE) {
 421         r = -PGM_SPECIFICATION;
 422         goto out;
 423     }
 424
 425     sclp_c->execute(sclp, (SCCB *)&work_sccb, code);
 426
 427     cpu_physical_memory_write(sccb, &work_sccb,
 428                               be16_to_cpu(work_sccb.h.length));
 429
 430     sclp_c->service_interrupt(sclp, sccb);
 431
 432 out:
 433     return r;
 434 }
 435
 436 static void service_interrupt(SCLPDevice *sclp, uint32_t sccb)
 437 {
 438     SCLPEventFacility *ef = sclp->event_facility;
 439     SCLPEventFacilityClass *efc = EVENT_FACILITY_GET_CLASS(ef);
 440
 441     uint32_t param = sccb & ~3;
 442
 443     /* Indicate whether an event is still pending */
 444     param |= efc->event_pending(ef) ? 1 : 0;
 445
 446     if (!param) {
 447         /* No need to send an interrupt, there's nothing to be notified about */
 448         return;
 449     }
 450     s390_sclp_extint(param);
 451 }
 452
 453 void sclp_service_interrupt(uint32_t sccb)
 454 {
 455     SCLPDevice *sclp = get_sclp_device();
 456     SCLPDeviceClass *sclp_c = SCLP_GET_CLASS(sclp);
 457
 458     sclp_c->service_interrupt(sclp, sccb);
 459 }
 460
 461 /* qemu object creation and initialization functions */
 462
 463 void s390_sclp_init(void)
 464 {
 465     Object *new = object_new(TYPE_SCLP);
 466
 467     object_property_add_child(qdev_get_machine(), TYPE_SCLP, new,
 468                               NULL);
 469     object_unref(OBJECT(new));
 470     qdev_init_nofail(DEVICE(new));
 471 }
 472
 473 static void sclp_realize(DeviceState *dev, Error **errp)
 474 {
 475     MachineState *machine = MACHINE(qdev_get_machine());
 476     SCLPDevice *sclp = SCLP(dev);
 477     Error *err = NULL;
 478     uint64_t hw_limit;
 479     int ret;
 480
 481     object_property_set_bool(OBJECT(sclp->event_facility), true, "realized",
 482                              &err);
 483     if (err) {
 484         goto out;
 485     }
 486     /*
 487      * qdev_device_add searches the sysbus for TYPE_SCLP_EVENTS_BUS. As long
 488      * as we can't find a fitting bus via the qom tree, we have to add the
 489      * event facility to the sysbus, so e.g. a sclp console can be created.
 490      */
 491     qdev_set_parent_bus(DEVICE(sclp->event_facility), sysbus_get_default());
 492
 493     ret = s390_set_memory_limit(machine->maxram_size, &hw_limit);
 494     if (ret == -E2BIG) {
 495         error_setg(&err, "qemu: host supports a maximum of %" PRIu64 " GB",
 496                    hw_limit >> 30);
 497     } else if (ret) {
 498         error_setg(&err, "qemu: setting the guest size failed");
 499     }
 500
 501 out:
 502     error_propagate(errp, err);
 503 }
 504
 505 static void sclp_memory_init(SCLPDevice *sclp)
 506 {
 507     MachineState *machine = MACHINE(qdev_get_machine());
 508     ram_addr_t initial_mem = machine->ram_size;
 509     ram_addr_t max_mem = machine->maxram_size;
 510     ram_addr_t standby_mem = max_mem - initial_mem;
 511     ram_addr_t pad_mem = 0;
 512     int increment_size = 20;
 513
 514     /* The storage increment size is a multiple of 1M and is a power of 2.
 515      * The number of storage increments must be MAX_STORAGE_INCREMENTS or fewer.
 516      * The variable 'increment_size' is an exponent of 2 that can be
 517      * used to calculate the size (in bytes) of an increment. */
 518     while ((initial_mem >> increment_size) > MAX_STORAGE_INCREMENTS) {
 519         increment_size++;
 520     }
 521     if (machine->ram_slots) {
 522         while ((standby_mem >> increment_size) > MAX_STORAGE_INCREMENTS) {
 523             increment_size++;
 524         }
 525     }
 526     sclp->increment_size = increment_size;
 527
 528     /* The core and standby memory areas need to be aligned with
 529      * the increment size.  In effect, this can cause the
 530      * user-specified memory size to be rounded down to align
 531      * with the nearest increment boundary. */
 532     initial_mem = initial_mem >> increment_size << increment_size;
 533     standby_mem = standby_mem >> increment_size << increment_size;
 534
 535     /* If the size of ram is not on a MEM_SECTION_SIZE boundary,
 536        calculate the pad size necessary to force this boundary. */
 537     if (machine->ram_slots && standby_mem) {
 538         sclpMemoryHotplugDev *mhd = init_sclp_memory_hotplug_dev();
 539
 540         if (initial_mem % MEM_SECTION_SIZE) {
 541             pad_mem = MEM_SECTION_SIZE - initial_mem % MEM_SECTION_SIZE;
 542         }
 543         mhd->increment_size = increment_size;
 544         mhd->pad_size = pad_mem;
 545         mhd->standby_mem_size = standby_mem;
 546     }
 547     machine->ram_size = initial_mem;
 548     machine->maxram_size = initial_mem + pad_mem + standby_mem;
 549     /* let's propagate the changed ram size into the global variable. */
 550     ram_size = initial_mem;
 551 }
 552
 553 static void sclp_init(Object *obj)
 554 {
 555     SCLPDevice *sclp = SCLP(obj);
 556     Object *new;
 557
 558     new = object_new(TYPE_SCLP_EVENT_FACILITY);
 559     object_property_add_child(obj, TYPE_SCLP_EVENT_FACILITY, new, NULL);
 560     object_unref(new);
 561     sclp->event_facility = EVENT_FACILITY(new);
 562
 563     sclp_memory_init(sclp);
 564 }
 565
 566 static void sclp_class_init(ObjectClass *oc, void *data)
 567 {
 568     SCLPDeviceClass *sc = SCLP_CLASS(oc);
 569     DeviceClass *dc = DEVICE_CLASS(oc);
 570
 571     dc->desc = "SCLP (Service-Call Logical Processor)";
 572     dc->realize = sclp_realize;
 573     dc->hotpluggable = false;
 574     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
 575
 576     sc->read_SCP_info = read_SCP_info;
 577     sc->read_storage_element0_info = read_storage_element0_info;
 578     sc->read_storage_element1_info = read_storage_element1_info;
 579     sc->attach_storage_element = attach_storage_element;
 580     sc->assign_storage = assign_storage;
 581     sc->unassign_storage = unassign_storage;
 582     sc->read_cpu_info = sclp_read_cpu_info;
 583     sc->execute = sclp_execute;
 584     sc->service_interrupt = service_interrupt;
 585 }
 586
 587 static TypeInfo sclp_info = {
 588     .name = TYPE_SCLP,
 589     .parent = TYPE_DEVICE,
 590     .instance_init = sclp_init,
 591     .instance_size = sizeof(SCLPDevice),
 592     .class_init = sclp_class_init,
 593     .class_size = sizeof(SCLPDeviceClass),
 594 };
 595
 596 sclpMemoryHotplugDev *init_sclp_memory_hotplug_dev(void)
 597 {
 598     DeviceState *dev;
 599     dev = qdev_create(NULL, TYPE_SCLP_MEMORY_HOTPLUG_DEV);
 600     object_property_add_child(qdev_get_machine(),
 601                               TYPE_SCLP_MEMORY_HOTPLUG_DEV,
 602                               OBJECT(dev), NULL);
 603     qdev_init_nofail(dev);
 604     return SCLP_MEMORY_HOTPLUG_DEV(object_resolve_path(
 605                                    TYPE_SCLP_MEMORY_HOTPLUG_DEV, NULL));
 606 }
 607
 608 sclpMemoryHotplugDev *get_sclp_memory_hotplug_dev(void)
 609 {
 610     return SCLP_MEMORY_HOTPLUG_DEV(object_resolve_path(
 611                                    TYPE_SCLP_MEMORY_HOTPLUG_DEV, NULL));
 612 }
 613
 614 static void sclp_memory_hotplug_dev_class_init(ObjectClass *klass,
 615                                                void *data)
 616 {
 617     DeviceClass *dc = DEVICE_CLASS(klass);
 618
 619     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
 620 }
 621
 622 static TypeInfo sclp_memory_hotplug_dev_info = {
 623     .name = TYPE_SCLP_MEMORY_HOTPLUG_DEV,
 624     .parent = TYPE_SYS_BUS_DEVICE,
 625     .instance_size = sizeof(sclpMemoryHotplugDev),
 626     .class_init = sclp_memory_hotplug_dev_class_init,
 627 };
 628
 629 static void register_types(void)
 630 {
 631     type_register_static(&sclp_memory_hotplug_dev_info);
 632     type_register_static(&sclp_info);
 633 }
 634 type_init(register_types);