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     read_info->ibc_val = cpu_to_be32(s390_get_ibc_val());
  71
  72     /* Configuration Characteristic (Extension) */
  73     s390_get_feat_block(S390_FEAT_TYPE_SCLP_CONF_CHAR,
  74                          read_info->conf_char);
  75     s390_get_feat_block(S390_FEAT_TYPE_SCLP_CONF_CHAR_EXT,
  76                          read_info->conf_char_ext);
  77
  78     prepare_cpu_entries(sclp, read_info->entries, cpu_count);
  79
  80     read_info->facilities = cpu_to_be64(SCLP_HAS_CPU_INFO |
  81                                         SCLP_HAS_PCI_RECONFIG);
  82
  83     /* Memory Hotplug is only supported for the ccw machine type */
  84     if (mhd) {
  85         mhd->standby_subregion_size = MEM_SECTION_SIZE;
  86         /* Deduct the memory slot already used for core */
  87         if (slots > 0) {
  88             while ((mhd->standby_subregion_size * (slots - 1)
  89                     < mhd->standby_mem_size)) {
  90                 mhd->standby_subregion_size = mhd->standby_subregion_size << 1;
  91             }
  92         }
  93         /*
  94          * Initialize mapping of guest standby memory sections indicating which
  95          * are and are not online. Assume all standby memory begins offline.
  96          */
  97         if (mhd->standby_state_map == 0) {
  98             if (mhd->standby_mem_size % mhd->standby_subregion_size) {
  99                 mhd->standby_state_map = g_malloc0((mhd->standby_mem_size /
 100                                              mhd->standby_subregion_size + 1) *
 101                                              (mhd->standby_subregion_size /
 102                                              MEM_SECTION_SIZE));
 103             } else {
 104                 mhd->standby_state_map = g_malloc0(mhd->standby_mem_size /
 105                                                    MEM_SECTION_SIZE);
 106             }
 107         }
 108         mhd->padded_ram_size = ram_size + mhd->pad_size;
 109         mhd->rzm = 1 << mhd->increment_size;
 110
 111         read_info->facilities |= cpu_to_be64(SCLP_FC_ASSIGN_ATTACH_READ_STOR);
 112     }
 113     read_info->mha_pow = s390_get_mha_pow();
 114     read_info->hmfai = cpu_to_be32(s390_get_hmfai());
 115
 116     rnsize = 1 << (sclp->increment_size - 20);
 117     if (rnsize <= 128) {
 118         read_info->rnsize = rnsize;
 119     } else {
 120         read_info->rnsize = 0;
 121         read_info->rnsize2 = cpu_to_be32(rnsize);
 122     }
 123
 124     rnmax = machine->maxram_size >> sclp->increment_size;
 125     if (rnmax < 0x10000) {
 126         read_info->rnmax = cpu_to_be16(rnmax);
 127     } else {
 128         read_info->rnmax = cpu_to_be16(0);
 129         read_info->rnmax2 = cpu_to_be64(rnmax);
 130     }
 131
 132     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_READ_COMPLETION);
 133 }
 134
 135 static void read_storage_element0_info(SCLPDevice *sclp, SCCB *sccb)
 136 {
 137     int i, assigned;
 138     int subincrement_id = SCLP_STARTING_SUBINCREMENT_ID;
 139     ReadStorageElementInfo *storage_info = (ReadStorageElementInfo *) sccb;
 140     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 141
 142     if (!mhd) {
 143         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 144         return;
 145     }
 146
 147     if ((ram_size >> mhd->increment_size) >= 0x10000) {
 148         sccb->h.response_code = cpu_to_be16(SCLP_RC_SCCB_BOUNDARY_VIOLATION);
 149         return;
 150     }
 151
 152     /* Return information regarding core memory */
 153     storage_info->max_id = cpu_to_be16(mhd->standby_mem_size ? 1 : 0);
 154     assigned = ram_size >> mhd->increment_size;
 155     storage_info->assigned = cpu_to_be16(assigned);
 156
 157     for (i = 0; i < assigned; i++) {
 158         storage_info->entries[i] = cpu_to_be32(subincrement_id);
 159         subincrement_id += SCLP_INCREMENT_UNIT;
 160     }
 161     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_READ_COMPLETION);
 162 }
 163
 164 static void read_storage_element1_info(SCLPDevice *sclp, SCCB *sccb)
 165 {
 166     ReadStorageElementInfo *storage_info = (ReadStorageElementInfo *) sccb;
 167     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 168
 169     if (!mhd) {
 170         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 171         return;
 172     }
 173
 174     if ((mhd->standby_mem_size >> mhd->increment_size) >= 0x10000) {
 175         sccb->h.response_code = cpu_to_be16(SCLP_RC_SCCB_BOUNDARY_VIOLATION);
 176         return;
 177     }
 178
 179     /* Return information regarding standby memory */
 180     storage_info->max_id = cpu_to_be16(mhd->standby_mem_size ? 1 : 0);
 181     storage_info->assigned = cpu_to_be16(mhd->standby_mem_size >>
 182                                          mhd->increment_size);
 183     storage_info->standby = cpu_to_be16(mhd->standby_mem_size >>
 184                                         mhd->increment_size);
 185     sccb->h.response_code = cpu_to_be16(SCLP_RC_STANDBY_READ_COMPLETION);
 186 }
 187
 188 static void attach_storage_element(SCLPDevice *sclp, SCCB *sccb,
 189                                    uint16_t element)
 190 {
 191     int i, assigned, subincrement_id;
 192     AttachStorageElement *attach_info = (AttachStorageElement *) sccb;
 193     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 194
 195     if (!mhd) {
 196         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 197         return;
 198     }
 199
 200     if (element != 1) {
 201         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 202         return;
 203     }
 204
 205     assigned = mhd->standby_mem_size >> mhd->increment_size;
 206     attach_info->assigned = cpu_to_be16(assigned);
 207     subincrement_id = ((ram_size >> mhd->increment_size) << 16)
 208                       + SCLP_STARTING_SUBINCREMENT_ID;
 209     for (i = 0; i < assigned; i++) {
 210         attach_info->entries[i] = cpu_to_be32(subincrement_id);
 211         subincrement_id += SCLP_INCREMENT_UNIT;
 212     }
 213     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_COMPLETION);
 214 }
 215
 216 static void assign_storage(SCLPDevice *sclp, SCCB *sccb)
 217 {
 218     MemoryRegion *mr = NULL;
 219     uint64_t this_subregion_size;
 220     AssignStorage *assign_info = (AssignStorage *) sccb;
 221     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 222     ram_addr_t assign_addr;
 223     MemoryRegion *sysmem = get_system_memory();
 224
 225     if (!mhd) {
 226         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 227         return;
 228     }
 229     assign_addr = (assign_info->rn - 1) * mhd->rzm;
 230
 231     if ((assign_addr % MEM_SECTION_SIZE == 0) &&
 232         (assign_addr >= mhd->padded_ram_size)) {
 233         /* Re-use existing memory region if found */
 234         mr = memory_region_find(sysmem, assign_addr, 1).mr;
 235         memory_region_unref(mr);
 236         if (!mr) {
 237
 238             MemoryRegion *standby_ram = g_new(MemoryRegion, 1);
 239
 240             /* offset to align to standby_subregion_size for allocation */
 241             ram_addr_t offset = assign_addr -
 242                                 (assign_addr - mhd->padded_ram_size)
 243                                 % mhd->standby_subregion_size;
 244
 245             /* strlen("standby.ram") + 4 (Max of KVM_MEMORY_SLOTS) +  NULL */
 246             char id[16];
 247             snprintf(id, 16, "standby.ram%d",
 248                      (int)((offset - mhd->padded_ram_size) /
 249                      mhd->standby_subregion_size) + 1);
 250
 251             /* Allocate a subregion of the calculated standby_subregion_size */
 252             if (offset + mhd->standby_subregion_size >
 253                 mhd->padded_ram_size + mhd->standby_mem_size) {
 254                 this_subregion_size = mhd->padded_ram_size +
 255                   mhd->standby_mem_size - offset;
 256             } else {
 257                 this_subregion_size = mhd->standby_subregion_size;
 258             }
 259
 260             memory_region_init_ram(standby_ram, NULL, id, this_subregion_size,
 261                                    &error_fatal);
 262             /* This is a hack to make memory hotunplug work again. Once we have
 263              * subdevices, we have to unparent them when unassigning memory,
 264              * instead of doing it via the ref count of the MemoryRegion. */
 265             object_ref(OBJECT(standby_ram));
 266             object_unparent(OBJECT(standby_ram));
 267             vmstate_register_ram_global(standby_ram);
 268             memory_region_add_subregion(sysmem, offset, standby_ram);
 269         }
 270         /* The specified subregion is no longer in standby */
 271         mhd->standby_state_map[(assign_addr - mhd->padded_ram_size)
 272                                / MEM_SECTION_SIZE] = 1;
 273     }
 274     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_COMPLETION);
 275 }
 276
 277 static void unassign_storage(SCLPDevice *sclp, SCCB *sccb)
 278 {
 279     MemoryRegion *mr = NULL;
 280     AssignStorage *assign_info = (AssignStorage *) sccb;
 281     sclpMemoryHotplugDev *mhd = get_sclp_memory_hotplug_dev();
 282     ram_addr_t unassign_addr;
 283     MemoryRegion *sysmem = get_system_memory();
 284
 285     if (!mhd) {
 286         sccb->h.response_code = cpu_to_be16(SCLP_RC_INVALID_SCLP_COMMAND);
 287         return;
 288     }
 289     unassign_addr = (assign_info->rn - 1) * mhd->rzm;
 290
 291     /* if the addr is a multiple of 256 MB */
 292     if ((unassign_addr % MEM_SECTION_SIZE == 0) &&
 293         (unassign_addr >= mhd->padded_ram_size)) {
 294         mhd->standby_state_map[(unassign_addr -
 295                            mhd->padded_ram_size) / MEM_SECTION_SIZE] = 0;
 296
 297         /* find the specified memory region and destroy it */
 298         mr = memory_region_find(sysmem, unassign_addr, 1).mr;
 299         memory_region_unref(mr);
 300         if (mr) {
 301             int i;
 302             int is_removable = 1;
 303             ram_addr_t map_offset = (unassign_addr - mhd->padded_ram_size -
 304                                      (unassign_addr - mhd->padded_ram_size)
 305                                      % mhd->standby_subregion_size);
 306             /* Mark all affected subregions as 'standby' once again */
 307             for (i = 0;
 308                  i < (mhd->standby_subregion_size / MEM_SECTION_SIZE);
 309                  i++) {
 310
 311                 if (mhd->standby_state_map[i + map_offset / MEM_SECTION_SIZE]) {
 312                     is_removable = 0;
 313                     break;
 314                 }
 315             }
 316             if (is_removable) {
 317                 memory_region_del_subregion(sysmem, mr);
 318                 object_unref(OBJECT(mr));
 319             }
 320         }
 321     }
 322     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_COMPLETION);
 323 }
 324
 325 /* Provide information about the CPU */
 326 static void sclp_read_cpu_info(SCLPDevice *sclp, SCCB *sccb)
 327 {
 328     ReadCpuInfo *cpu_info = (ReadCpuInfo *) sccb;
 329     CPUState *cpu;
 330     int cpu_count = 0;
 331
 332     CPU_FOREACH(cpu) {
 333         cpu_count++;
 334     }
 335
 336     cpu_info->nr_configured = cpu_to_be16(cpu_count);
 337     cpu_info->offset_configured = cpu_to_be16(offsetof(ReadCpuInfo, entries));
 338     cpu_info->nr_standby = cpu_to_be16(0);
 339
 340     /* The standby offset is 16-byte for each CPU */
 341     cpu_info->offset_standby = cpu_to_be16(cpu_info->offset_configured
 342         + cpu_info->nr_configured*sizeof(CPUEntry));
 343
 344     prepare_cpu_entries(sclp, cpu_info->entries, cpu_count);
 345
 346     sccb->h.response_code = cpu_to_be16(SCLP_RC_NORMAL_READ_COMPLETION);
 347 }
 348
 349 static void sclp_execute(SCLPDevice *sclp, SCCB *sccb, uint32_t code)
 350 {
 351     SCLPDeviceClass *sclp_c = SCLP_GET_CLASS(sclp);
 352     SCLPEventFacility *ef = sclp->event_facility;
 353     SCLPEventFacilityClass *efc = EVENT_FACILITY_GET_CLASS(ef);
 354
 355     switch (code & SCLP_CMD_CODE_MASK) {
 356     case SCLP_CMDW_READ_SCP_INFO:
 357     case SCLP_CMDW_READ_SCP_INFO_FORCED:
 358         sclp_c->read_SCP_info(sclp, sccb);
 359         break;
 360     case SCLP_CMDW_READ_CPU_INFO:
 361         sclp_c->read_cpu_info(sclp, sccb);
 362         break;
 363     case SCLP_READ_STORAGE_ELEMENT_INFO:
 364         if (code & 0xff00) {
 365             sclp_c->read_storage_element1_info(sclp, sccb);
 366         } else {
 367             sclp_c->read_storage_element0_info(sclp, sccb);
 368         }
 369         break;
 370     case SCLP_ATTACH_STORAGE_ELEMENT:
 371         sclp_c->attach_storage_element(sclp, sccb, (code & 0xff00) >> 8);
 372         break;
 373     case SCLP_ASSIGN_STORAGE:
 374         sclp_c->assign_storage(sclp, sccb);
 375         break;
 376     case SCLP_UNASSIGN_STORAGE:
 377         sclp_c->unassign_storage(sclp, sccb);
 378         break;
 379     case SCLP_CMDW_CONFIGURE_PCI:
 380         s390_pci_sclp_configure(sccb);
 381         break;
 382     case SCLP_CMDW_DECONFIGURE_PCI:
 383         s390_pci_sclp_deconfigure(sccb);
 384         break;
 385     default:
 386         efc->command_handler(ef, sccb, code);
 387         break;
 388     }
 389 }
 390
 391 int sclp_service_call(CPUS390XState *env, uint64_t sccb, uint32_t code)
 392 {
 393     SCLPDevice *sclp = get_sclp_device();
 394     SCLPDeviceClass *sclp_c = SCLP_GET_CLASS(sclp);
 395     int r = 0;
 396     SCCB work_sccb;
 397
 398     hwaddr sccb_len = sizeof(SCCB);
 399
 400     /* first some basic checks on program checks */
 401     if (env->psw.mask & PSW_MASK_PSTATE) {
 402         r = -PGM_PRIVILEGED;
 403         goto out;
 404     }
 405     if (cpu_physical_memory_is_io(sccb)) {
 406         r = -PGM_ADDRESSING;
 407         goto out;
 408     }
 409     if ((sccb & ~0x1fffUL) == 0 || (sccb & ~0x1fffUL) == env->psa
 410         || (sccb & ~0x7ffffff8UL) != 0) {
 411         r = -PGM_SPECIFICATION;
 412         goto out;
 413     }
 414
 415     /*
 416      * we want to work on a private copy of the sccb, to prevent guests
 417      * from playing dirty tricks by modifying the memory content after
 418      * the host has checked the values
 419      */
 420     cpu_physical_memory_read(sccb, &work_sccb, sccb_len);
 421
 422     /* Valid sccb sizes */
 423     if (be16_to_cpu(work_sccb.h.length) < sizeof(SCCBHeader) ||
 424         be16_to_cpu(work_sccb.h.length) > SCCB_SIZE) {
 425         r = -PGM_SPECIFICATION;
 426         goto out;
 427     }
 428
 429     sclp_c->execute(sclp, &work_sccb, code);
 430
 431     cpu_physical_memory_write(sccb, &work_sccb,
 432                               be16_to_cpu(work_sccb.h.length));
 433
 434     sclp_c->service_interrupt(sclp, sccb);
 435
 436 out:
 437     return r;
 438 }
 439
 440 static void service_interrupt(SCLPDevice *sclp, uint32_t sccb)
 441 {
 442     SCLPEventFacility *ef = sclp->event_facility;
 443     SCLPEventFacilityClass *efc = EVENT_FACILITY_GET_CLASS(ef);
 444
 445     uint32_t param = sccb & ~3;
 446
 447     /* Indicate whether an event is still pending */
 448     param |= efc->event_pending(ef) ? 1 : 0;
 449
 450     if (!param) {
 451         /* No need to send an interrupt, there's nothing to be notified about */
 452         return;
 453     }
 454     s390_sclp_extint(param);
 455 }
 456
 457 void sclp_service_interrupt(uint32_t sccb)
 458 {
 459     SCLPDevice *sclp = get_sclp_device();
 460     SCLPDeviceClass *sclp_c = SCLP_GET_CLASS(sclp);
 461
 462     sclp_c->service_interrupt(sclp, sccb);
 463 }
 464
 465 /* qemu object creation and initialization functions */
 466
 467 void s390_sclp_init(void)
 468 {
 469     Object *new = object_new(TYPE_SCLP);
 470
 471     object_property_add_child(qdev_get_machine(), TYPE_SCLP, new,
 472                               NULL);
 473     object_unref(OBJECT(new));
 474     qdev_init_nofail(DEVICE(new));
 475 }
 476
 477 static void sclp_realize(DeviceState *dev, Error **errp)
 478 {
 479     MachineState *machine = MACHINE(qdev_get_machine());
 480     SCLPDevice *sclp = SCLP(dev);
 481     Error *err = NULL;
 482     uint64_t hw_limit;
 483     int ret;
 484
 485     object_property_set_bool(OBJECT(sclp->event_facility), true, "realized",
 486                              &err);
 487     if (err) {
 488         goto out;
 489     }
 490     /*
 491      * qdev_device_add searches the sysbus for TYPE_SCLP_EVENTS_BUS. As long
 492      * as we can't find a fitting bus via the qom tree, we have to add the
 493      * event facility to the sysbus, so e.g. a sclp console can be created.
 494      */
 495     qdev_set_parent_bus(DEVICE(sclp->event_facility), sysbus_get_default());
 496
 497     ret = s390_set_memory_limit(machine->maxram_size, &hw_limit);
 498     if (ret == -E2BIG) {
 499         error_setg(&err, "qemu: host supports a maximum of %" PRIu64 " GB",
 500                    hw_limit >> 30);
 501     } else if (ret) {
 502         error_setg(&err, "qemu: setting the guest size failed");
 503     }
 504
 505 out:
 506     error_propagate(errp, err);
 507 }
 508
 509 static void sclp_memory_init(SCLPDevice *sclp)
 510 {
 511     MachineState *machine = MACHINE(qdev_get_machine());
 512     ram_addr_t initial_mem = machine->ram_size;
 513     ram_addr_t max_mem = machine->maxram_size;
 514     ram_addr_t standby_mem = max_mem - initial_mem;
 515     ram_addr_t pad_mem = 0;
 516     int increment_size = 20;
 517
 518     /* The storage increment size is a multiple of 1M and is a power of 2.
 519      * The number of storage increments must be MAX_STORAGE_INCREMENTS or fewer.
 520      * The variable 'increment_size' is an exponent of 2 that can be
 521      * used to calculate the size (in bytes) of an increment. */
 522     while ((initial_mem >> increment_size) > MAX_STORAGE_INCREMENTS) {
 523         increment_size++;
 524     }
 525     if (machine->ram_slots) {
 526         while ((standby_mem >> increment_size) > MAX_STORAGE_INCREMENTS) {
 527             increment_size++;
 528         }
 529     }
 530     sclp->increment_size = increment_size;
 531
 532     /* The core and standby memory areas need to be aligned with
 533      * the increment size.  In effect, this can cause the
 534      * user-specified memory size to be rounded down to align
 535      * with the nearest increment boundary. */
 536     initial_mem = initial_mem >> increment_size << increment_size;
 537     standby_mem = standby_mem >> increment_size << increment_size;
 538
 539     /* If the size of ram is not on a MEM_SECTION_SIZE boundary,
 540        calculate the pad size necessary to force this boundary. */
 541     if (machine->ram_slots && standby_mem) {
 542         sclpMemoryHotplugDev *mhd = init_sclp_memory_hotplug_dev();
 543
 544         if (initial_mem % MEM_SECTION_SIZE) {
 545             pad_mem = MEM_SECTION_SIZE - initial_mem % MEM_SECTION_SIZE;
 546         }
 547         mhd->increment_size = increment_size;
 548         mhd->pad_size = pad_mem;
 549         mhd->standby_mem_size = standby_mem;
 550     }
 551     machine->ram_size = initial_mem;
 552     machine->maxram_size = initial_mem + pad_mem + standby_mem;
 553     /* let's propagate the changed ram size into the global variable. */
 554     ram_size = initial_mem;
 555 }
 556
 557 static void sclp_init(Object *obj)
 558 {
 559     SCLPDevice *sclp = SCLP(obj);
 560     Object *new;
 561
 562     new = object_new(TYPE_SCLP_EVENT_FACILITY);
 563     object_property_add_child(obj, TYPE_SCLP_EVENT_FACILITY, new, NULL);
 564     object_unref(new);
 565     sclp->event_facility = EVENT_FACILITY(new);
 566
 567     sclp_memory_init(sclp);
 568 }
 569
 570 static void sclp_class_init(ObjectClass *oc, void *data)
 571 {
 572     SCLPDeviceClass *sc = SCLP_CLASS(oc);
 573     DeviceClass *dc = DEVICE_CLASS(oc);
 574
 575     dc->desc = "SCLP (Service-Call Logical Processor)";
 576     dc->realize = sclp_realize;
 577     dc->hotpluggable = false;
 578     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
 579
 580     sc->read_SCP_info = read_SCP_info;
 581     sc->read_storage_element0_info = read_storage_element0_info;
 582     sc->read_storage_element1_info = read_storage_element1_info;
 583     sc->attach_storage_element = attach_storage_element;
 584     sc->assign_storage = assign_storage;
 585     sc->unassign_storage = unassign_storage;
 586     sc->read_cpu_info = sclp_read_cpu_info;
 587     sc->execute = sclp_execute;
 588     sc->service_interrupt = service_interrupt;
 589 }
 590
 591 static TypeInfo sclp_info = {
 592     .name = TYPE_SCLP,
 593     .parent = TYPE_DEVICE,
 594     .instance_init = sclp_init,
 595     .instance_size = sizeof(SCLPDevice),
 596     .class_init = sclp_class_init,
 597     .class_size = sizeof(SCLPDeviceClass),
 598 };
 599
 600 sclpMemoryHotplugDev *init_sclp_memory_hotplug_dev(void)
 601 {
 602     DeviceState *dev;
 603     dev = qdev_create(NULL, TYPE_SCLP_MEMORY_HOTPLUG_DEV);
 604     object_property_add_child(qdev_get_machine(),
 605                               TYPE_SCLP_MEMORY_HOTPLUG_DEV,
 606                               OBJECT(dev), NULL);
 607     qdev_init_nofail(dev);
 608     return SCLP_MEMORY_HOTPLUG_DEV(object_resolve_path(
 609                                    TYPE_SCLP_MEMORY_HOTPLUG_DEV, NULL));
 610 }
 611
 612 sclpMemoryHotplugDev *get_sclp_memory_hotplug_dev(void)
 613 {
 614     return SCLP_MEMORY_HOTPLUG_DEV(object_resolve_path(
 615                                    TYPE_SCLP_MEMORY_HOTPLUG_DEV, NULL));
 616 }
 617
 618 static void sclp_memory_hotplug_dev_class_init(ObjectClass *klass,
 619                                                void *data)
 620 {
 621     DeviceClass *dc = DEVICE_CLASS(klass);
 622
 623     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
 624 }
 625
 626 static TypeInfo sclp_memory_hotplug_dev_info = {
 627     .name = TYPE_SCLP_MEMORY_HOTPLUG_DEV,
 628     .parent = TYPE_SYS_BUS_DEVICE,
 629     .instance_size = sizeof(sclpMemoryHotplugDev),
 630     .class_init = sclp_memory_hotplug_dev_class_init,
 631 };
 632
 633 static void register_types(void)
 634 {
 635     type_register_static(&sclp_memory_hotplug_dev_info);
 636     type_register_static(&sclp_info);
 637 }
 638 type_init(register_types);