hw/s390x/s390-virtio-ccw.c

   1 /*
   2  * virtio ccw machine
   3  *
   4  * Copyright 2012 IBM Corp.
   5  * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
   6  * Author(s): 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 "qapi/error.h"
  15 #include "cpu.h"
  16 #include "hw/boards.h"
  17 #include "exec/address-spaces.h"
  18 #include "hw/s390x/s390-virtio-hcall.h"
  19 #include "hw/s390x/sclp.h"
  20 #include "hw/s390x/s390_flic.h"
  21 #include "hw/s390x/ioinst.h"
  22 #include "hw/s390x/css.h"
  23 #include "virtio-ccw.h"
  24 #include "qemu/config-file.h"
  25 #include "qemu/error-report.h"
  26 #include "qemu/option.h"
  27 #include "s390-pci-bus.h"
  28 #include "hw/s390x/storage-keys.h"
  29 #include "hw/s390x/storage-attributes.h"
  30 #include "hw/s390x/event-facility.h"
  31 #include "hw/compat.h"
  32 #include "ipl.h"
  33 #include "hw/s390x/s390-virtio-ccw.h"
  34 #include "hw/s390x/css-bridge.h"
  35 #include "migration/register.h"
  36 #include "cpu_models.h"
  37 #include "hw/nmi.h"
  38 #include "hw/s390x/tod.h"
  39
  40 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
  41 {
  42     static MachineState *ms;
  43
  44     if (!ms) {
  45         ms = MACHINE(qdev_get_machine());
  46         g_assert(ms->possible_cpus);
  47     }
  48
  49     /* CPU address corresponds to the core_id and the index */
  50     if (cpu_addr >= ms->possible_cpus->len) {
  51         return NULL;
  52     }
  53     return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu);
  54 }
  55
  56 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id,
  57                               Error **errp)
  58 {
  59     S390CPU *cpu = S390_CPU(object_new(typename));
  60     Error *err = NULL;
  61
  62     object_property_set_int(OBJECT(cpu), core_id, "core-id", &err);
  63     if (err != NULL) {
  64         goto out;
  65     }
  66     object_property_set_bool(OBJECT(cpu), true, "realized", &err);
  67
  68 out:
  69     object_unref(OBJECT(cpu));
  70     if (err) {
  71         error_propagate(errp, err);
  72         cpu = NULL;
  73     }
  74     return cpu;
  75 }
  76
  77 static void s390_init_cpus(MachineState *machine)
  78 {
  79     MachineClass *mc = MACHINE_GET_CLASS(machine);
  80     int i;
  81
  82     /* initialize possible_cpus */
  83     mc->possible_cpu_arch_ids(machine);
  84
  85     for (i = 0; i < smp_cpus; i++) {
  86         s390x_new_cpu(machine->cpu_type, i, &error_fatal);
  87     }
  88 }
  89
  90 static const char *const reset_dev_types[] = {
  91     TYPE_VIRTUAL_CSS_BRIDGE,
  92     "s390-sclp-event-facility",
  93     "s390-flic",
  94     "diag288",
  95 };
  96
  97 static void subsystem_reset(void)
  98 {
  99     DeviceState *dev;
 100     int i;
 101
 102     for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
 103         dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
 104         if (dev) {
 105             qdev_reset_all(dev);
 106         }
 107     }
 108 }
 109
 110 static int virtio_ccw_hcall_notify(const uint64_t *args)
 111 {
 112     uint64_t subch_id = args[0];
 113     uint64_t queue = args[1];
 114     SubchDev *sch;
 115     int cssid, ssid, schid, m;
 116
 117     if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
 118         return -EINVAL;
 119     }
 120     sch = css_find_subch(m, cssid, ssid, schid);
 121     if (!sch || !css_subch_visible(sch)) {
 122         return -EINVAL;
 123     }
 124     if (queue >= VIRTIO_QUEUE_MAX) {
 125         return -EINVAL;
 126     }
 127     virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
 128     return 0;
 129
 130 }
 131
 132 static int virtio_ccw_hcall_early_printk(const uint64_t *args)
 133 {
 134     uint64_t mem = args[0];
 135
 136     if (mem < ram_size) {
 137         /* Early printk */
 138         return 0;
 139     }
 140     return -EINVAL;
 141 }
 142
 143 static void virtio_ccw_register_hcalls(void)
 144 {
 145     s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
 146                                    virtio_ccw_hcall_notify);
 147     /* Tolerate early printk. */
 148     s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
 149                                    virtio_ccw_hcall_early_printk);
 150 }
 151
 152 /*
 153  * KVM does only support memory slots up to KVM_MEM_MAX_NR_PAGES pages
 154  * as the dirty bitmap must be managed by bitops that take an int as
 155  * position indicator. If we have a guest beyond that we will split off
 156  * new subregions. The split must happen on a segment boundary (1MB).
 157  */
 158 #define KVM_MEM_MAX_NR_PAGES ((1ULL << 31) - 1)
 159 #define SEG_MSK (~0xfffffULL)
 160 #define KVM_SLOT_MAX_BYTES ((KVM_MEM_MAX_NR_PAGES * TARGET_PAGE_SIZE) & SEG_MSK)
 161 static void s390_memory_init(ram_addr_t mem_size)
 162 {
 163     MemoryRegion *sysmem = get_system_memory();
 164     ram_addr_t chunk, offset = 0;
 165     unsigned int number = 0;
 166     gchar *name;
 167
 168     /* allocate RAM for core */
 169     name = g_strdup_printf("s390.ram");
 170     while (mem_size) {
 171         MemoryRegion *ram = g_new(MemoryRegion, 1);
 172         uint64_t size = mem_size;
 173
 174         /* KVM does not allow memslots >= 8 TB */
 175         chunk = MIN(size, KVM_SLOT_MAX_BYTES);
 176         memory_region_allocate_system_memory(ram, NULL, name, chunk);
 177         memory_region_add_subregion(sysmem, offset, ram);
 178         mem_size -= chunk;
 179         offset += chunk;
 180         g_free(name);
 181         name = g_strdup_printf("s390.ram.%u", ++number);
 182     }
 183     g_free(name);
 184
 185     /* Initialize storage key device */
 186     s390_skeys_init();
 187     /* Initialize storage attributes device */
 188     s390_stattrib_init();
 189 }
 190
 191 static void s390_init_ipl_dev(const char *kernel_filename,
 192                               const char *kernel_cmdline,
 193                               const char *initrd_filename, const char *firmware,
 194                               const char *netboot_fw, bool enforce_bios)
 195 {
 196     Object *new = object_new(TYPE_S390_IPL);
 197     DeviceState *dev = DEVICE(new);
 198     char *netboot_fw_prop;
 199
 200     if (kernel_filename) {
 201         qdev_prop_set_string(dev, "kernel", kernel_filename);
 202     }
 203     if (initrd_filename) {
 204         qdev_prop_set_string(dev, "initrd", initrd_filename);
 205     }
 206     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
 207     qdev_prop_set_string(dev, "firmware", firmware);
 208     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
 209     netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort);
 210     if (!strlen(netboot_fw_prop)) {
 211         qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
 212     }
 213     g_free(netboot_fw_prop);
 214     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
 215                               new, NULL);
 216     object_unref(new);
 217     qdev_init_nofail(dev);
 218 }
 219
 220 static void s390_create_virtio_net(BusState *bus, const char *name)
 221 {
 222     int i;
 223
 224     for (i = 0; i < nb_nics; i++) {
 225         NICInfo *nd = &nd_table[i];
 226         DeviceState *dev;
 227
 228         if (!nd->model) {
 229             nd->model = g_strdup("virtio");
 230         }
 231
 232         qemu_check_nic_model(nd, "virtio");
 233
 234         dev = qdev_create(bus, name);
 235         qdev_set_nic_properties(dev, nd);
 236         qdev_init_nofail(dev);
 237     }
 238 }
 239
 240 static void s390_create_sclpconsole(const char *type, Chardev *chardev)
 241 {
 242     DeviceState *dev;
 243
 244     dev = qdev_create(sclp_get_event_facility_bus(), type);
 245     qdev_prop_set_chr(dev, "chardev", chardev);
 246     qdev_init_nofail(dev);
 247 }
 248
 249 static void ccw_init(MachineState *machine)
 250 {
 251     int ret;
 252     VirtualCssBus *css_bus;
 253     DeviceState *dev;
 254
 255     s390_sclp_init();
 256     s390_memory_init(machine->ram_size);
 257
 258     /* init CPUs (incl. CPU model) early so s390_has_feature() works */
 259     s390_init_cpus(machine);
 260
 261     s390_flic_init();
 262
 263     /* init the SIGP facility */
 264     s390_init_sigp();
 265
 266     /* get a BUS */
 267     css_bus = virtual_css_bus_init();
 268     s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
 269                       machine->initrd_filename, "s390-ccw.img",
 270                       "s390-netboot.img", true);
 271
 272     /*
 273      * We cannot easily make the pci host bridge conditional as older QEMUs
 274      * always created it. Doing so would break migration across QEMU versions.
 275      */
 276     dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE);
 277     object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
 278                               OBJECT(dev), NULL);
 279     qdev_init_nofail(dev);
 280
 281     /* register hypercalls */
 282     virtio_ccw_register_hcalls();
 283
 284     s390_enable_css_support(s390_cpu_addr2state(0));
 285     /*
 286      * Non mcss-e enabled guests only see the devices from the default
 287      * css, which is determined by the value of the squash_mcss property.
 288      */
 289     if (css_bus->squash_mcss) {
 290         ret = css_create_css_image(0, true);
 291     } else {
 292         ret = css_create_css_image(VIRTUAL_CSSID, true);
 293     }
 294     if (qemu_opt_get(qemu_get_machine_opts(), "s390-squash-mcss")) {
 295         warn_report("The machine property 's390-squash-mcss' is deprecated"
 296                     " (obsoleted by lifting the cssid restrictions).");
 297     }
 298
 299     assert(ret == 0);
 300     if (css_migration_enabled()) {
 301         css_register_vmstate();
 302     }
 303
 304     /* Create VirtIO network adapters */
 305     s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw");
 306
 307     /* init consoles */
 308     if (serial_hd(0)) {
 309         s390_create_sclpconsole("sclpconsole", serial_hd(0));
 310     }
 311     if (serial_hd(1)) {
 312         s390_create_sclpconsole("sclplmconsole", serial_hd(1));
 313     }
 314
 315     /* init the TOD clock */
 316     s390_init_tod();
 317 }
 318
 319 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
 320                         DeviceState *dev, Error **errp)
 321 {
 322     MachineState *ms = MACHINE(hotplug_dev);
 323     S390CPU *cpu = S390_CPU(dev);
 324
 325     g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
 326     ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev);
 327
 328     if (dev->hotplugged) {
 329         raise_irq_cpu_hotplug();
 330     }
 331 }
 332
 333 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg)
 334 {
 335     S390CPU *cpu = S390_CPU(cs);
 336
 337     s390_ipl_prepare_cpu(cpu);
 338     s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
 339 }
 340
 341 static void s390_machine_reset(void)
 342 {
 343     enum s390_reset reset_type;
 344     CPUState *cs, *t;
 345
 346     /* get the reset parameters, reset them once done */
 347     s390_ipl_get_reset_request(&cs, &reset_type);
 348
 349     /* all CPUs are paused and synchronized at this point */
 350     s390_cmma_reset();
 351
 352     switch (reset_type) {
 353     case S390_RESET_EXTERNAL:
 354     case S390_RESET_REIPL:
 355         qemu_devices_reset();
 356         s390_crypto_reset();
 357
 358         /* configure and start the ipl CPU only */
 359         run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL);
 360         break;
 361     case S390_RESET_MODIFIED_CLEAR:
 362         CPU_FOREACH(t) {
 363             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
 364         }
 365         subsystem_reset();
 366         s390_crypto_reset();
 367         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
 368         break;
 369     case S390_RESET_LOAD_NORMAL:
 370         CPU_FOREACH(t) {
 371             run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
 372         }
 373         subsystem_reset();
 374         run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL);
 375         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
 376         break;
 377     default:
 378         g_assert_not_reached();
 379     }
 380     s390_ipl_clear_reset_request();
 381 }
 382
 383 static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
 384                                      DeviceState *dev, Error **errp)
 385 {
 386     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
 387         s390_cpu_plug(hotplug_dev, dev, errp);
 388     }
 389 }
 390
 391 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev,
 392                                                DeviceState *dev, Error **errp)
 393 {
 394     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
 395         error_setg(errp, "CPU hot unplug not supported on this machine");
 396         return;
 397     }
 398 }
 399
 400 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms,
 401                                                      unsigned cpu_index)
 402 {
 403     MachineClass *mc = MACHINE_GET_CLASS(ms);
 404     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
 405
 406     assert(cpu_index < possible_cpus->len);
 407     return possible_cpus->cpus[cpu_index].props;
 408 }
 409
 410 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
 411 {
 412     int i;
 413
 414     if (ms->possible_cpus) {
 415         g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
 416         return ms->possible_cpus;
 417     }
 418
 419     ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
 420                                   sizeof(CPUArchId) * max_cpus);
 421     ms->possible_cpus->len = max_cpus;
 422     for (i = 0; i < ms->possible_cpus->len; i++) {
 423         ms->possible_cpus->cpus[i].type = ms->cpu_type;
 424         ms->possible_cpus->cpus[i].vcpus_count = 1;
 425         ms->possible_cpus->cpus[i].arch_id = i;
 426         ms->possible_cpus->cpus[i].props.has_core_id = true;
 427         ms->possible_cpus->cpus[i].props.core_id = i;
 428     }
 429
 430     return ms->possible_cpus;
 431 }
 432
 433 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
 434                                                 DeviceState *dev)
 435 {
 436     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
 437         return HOTPLUG_HANDLER(machine);
 438     }
 439     return NULL;
 440 }
 441
 442 static void s390_hot_add_cpu(const int64_t id, Error **errp)
 443 {
 444     MachineState *machine = MACHINE(qdev_get_machine());
 445     ObjectClass *oc;
 446
 447     g_assert(machine->possible_cpus->cpus[0].cpu);
 448     oc = OBJECT_CLASS(CPU_GET_CLASS(machine->possible_cpus->cpus[0].cpu));
 449
 450     s390x_new_cpu(object_class_get_name(oc), id, errp);
 451 }
 452
 453 static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
 454 {
 455     CPUState *cs = qemu_get_cpu(cpu_index);
 456
 457     s390_cpu_restart(S390_CPU(cs));
 458 }
 459
 460 static void ccw_machine_class_init(ObjectClass *oc, void *data)
 461 {
 462     MachineClass *mc = MACHINE_CLASS(oc);
 463     NMIClass *nc = NMI_CLASS(oc);
 464     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
 465     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 466
 467     s390mc->ri_allowed = true;
 468     s390mc->cpu_model_allowed = true;
 469     s390mc->css_migration_enabled = true;
 470     mc->init = ccw_init;
 471     mc->reset = s390_machine_reset;
 472     mc->hot_add_cpu = s390_hot_add_cpu;
 473     mc->block_default_type = IF_VIRTIO;
 474     mc->no_cdrom = 1;
 475     mc->no_floppy = 1;
 476     mc->no_parallel = 1;
 477     mc->no_sdcard = 1;
 478     mc->max_cpus = S390_MAX_CPUS;
 479     mc->has_hotpluggable_cpus = true;
 480     assert(!mc->get_hotplug_handler);
 481     mc->get_hotplug_handler = s390_get_hotplug_handler;
 482     mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
 483     mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;
 484     /* it is overridden with 'host' cpu *in kvm_arch_init* */
 485     mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu");
 486     hc->plug = s390_machine_device_plug;
 487     hc->unplug_request = s390_machine_device_unplug_request;
 488     nc->nmi_monitor_handler = s390_nmi;
 489 }
 490
 491 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
 492 {
 493     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 494
 495     return ms->aes_key_wrap;
 496 }
 497
 498 static inline void machine_set_aes_key_wrap(Object *obj, bool value,
 499                                             Error **errp)
 500 {
 501     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 502
 503     ms->aes_key_wrap = value;
 504 }
 505
 506 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
 507 {
 508     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 509
 510     return ms->dea_key_wrap;
 511 }
 512
 513 static inline void machine_set_dea_key_wrap(Object *obj, bool value,
 514                                             Error **errp)
 515 {
 516     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 517
 518     ms->dea_key_wrap = value;
 519 }
 520
 521 static S390CcwMachineClass *current_mc;
 522
 523 static S390CcwMachineClass *get_machine_class(void)
 524 {
 525     if (unlikely(!current_mc)) {
 526         /*
 527         * No s390 ccw machine was instantiated, we are likely to
 528         * be called for the 'none' machine. The properties will
 529         * have their after-initialization values.
 530         */
 531         current_mc = S390_MACHINE_CLASS(
 532                      object_class_by_name(TYPE_S390_CCW_MACHINE));
 533     }
 534     return current_mc;
 535 }
 536
 537 bool ri_allowed(void)
 538 {
 539     /* for "none" machine this results in true */
 540     return get_machine_class()->ri_allowed;
 541 }
 542
 543 bool cpu_model_allowed(void)
 544 {
 545     /* for "none" machine this results in true */
 546     return get_machine_class()->cpu_model_allowed;
 547 }
 548
 549 static char *machine_get_loadparm(Object *obj, Error **errp)
 550 {
 551     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 552
 553     return g_memdup(ms->loadparm, sizeof(ms->loadparm));
 554 }
 555
 556 static void machine_set_loadparm(Object *obj, const char *val, Error **errp)
 557 {
 558     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 559     int i;
 560
 561     for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) {
 562         uint8_t c = qemu_toupper(val[i]); /* mimic HMC */
 563
 564         if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') ||
 565             (c == ' ')) {
 566             ms->loadparm[i] = c;
 567         } else {
 568             error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)",
 569                        c, c);
 570             return;
 571         }
 572     }
 573
 574     for (; i < sizeof(ms->loadparm); i++) {
 575         ms->loadparm[i] = ' '; /* pad right with spaces */
 576     }
 577 }
 578 static inline bool machine_get_squash_mcss(Object *obj, Error **errp)
 579 {
 580     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 581
 582     return ms->s390_squash_mcss;
 583 }
 584
 585 static inline void machine_set_squash_mcss(Object *obj, bool value,
 586                                            Error **errp)
 587 {
 588     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 589
 590     ms->s390_squash_mcss = value;
 591 }
 592
 593 static inline void s390_machine_initfn(Object *obj)
 594 {
 595     object_property_add_bool(obj, "aes-key-wrap",
 596                              machine_get_aes_key_wrap,
 597                              machine_set_aes_key_wrap, NULL);
 598     object_property_set_description(obj, "aes-key-wrap",
 599             "enable/disable AES key wrapping using the CPACF wrapping key",
 600             NULL);
 601     object_property_set_bool(obj, true, "aes-key-wrap", NULL);
 602
 603     object_property_add_bool(obj, "dea-key-wrap",
 604                              machine_get_dea_key_wrap,
 605                              machine_set_dea_key_wrap, NULL);
 606     object_property_set_description(obj, "dea-key-wrap",
 607             "enable/disable DEA key wrapping using the CPACF wrapping key",
 608             NULL);
 609     object_property_set_bool(obj, true, "dea-key-wrap", NULL);
 610     object_property_add_str(obj, "loadparm",
 611             machine_get_loadparm, machine_set_loadparm, NULL);
 612     object_property_set_description(obj, "loadparm",
 613             "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted"
 614             " to upper case) to pass to machine loader, boot manager,"
 615             " and guest kernel",
 616             NULL);
 617     object_property_add_bool(obj, "s390-squash-mcss",
 618                              machine_get_squash_mcss,
 619                              machine_set_squash_mcss, NULL);
 620     object_property_set_description(obj, "s390-squash-mcss", "(deprecated) "
 621             "enable/disable squashing subchannels into the default css",
 622             NULL);
 623     object_property_set_bool(obj, false, "s390-squash-mcss", NULL);
 624 }
 625
 626 static const TypeInfo ccw_machine_info = {
 627     .name          = TYPE_S390_CCW_MACHINE,
 628     .parent        = TYPE_MACHINE,
 629     .abstract      = true,
 630     .instance_size = sizeof(S390CcwMachineState),
 631     .instance_init = s390_machine_initfn,
 632     .class_size = sizeof(S390CcwMachineClass),
 633     .class_init    = ccw_machine_class_init,
 634     .interfaces = (InterfaceInfo[]) {
 635         { TYPE_NMI },
 636         { TYPE_HOTPLUG_HANDLER},
 637         { }
 638     },
 639 };
 640
 641 bool css_migration_enabled(void)
 642 {
 643     return get_machine_class()->css_migration_enabled;
 644 }
 645
 646 #define DEFINE_CCW_MACHINE(suffix, verstr, latest)                            \
 647     static void ccw_machine_##suffix##_class_init(ObjectClass *oc,            \
 648                                                   void *data)                 \
 649     {                                                                         \
 650         MachineClass *mc = MACHINE_CLASS(oc);                                 \
 651         ccw_machine_##suffix##_class_options(mc);                             \
 652         mc->desc = "VirtIO-ccw based S390 machine v" verstr;                  \
 653         if (latest) {                                                         \
 654             mc->alias = "s390-ccw-virtio";                                    \
 655             mc->is_default = 1;                                               \
 656         }                                                                     \
 657     }                                                                         \
 658     static void ccw_machine_##suffix##_instance_init(Object *obj)             \
 659     {                                                                         \
 660         MachineState *machine = MACHINE(obj);                                 \
 661         current_mc = S390_MACHINE_CLASS(MACHINE_GET_CLASS(machine));          \
 662         ccw_machine_##suffix##_instance_options(machine);                     \
 663     }                                                                         \
 664     static const TypeInfo ccw_machine_##suffix##_info = {                     \
 665         .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr),                 \
 666         .parent = TYPE_S390_CCW_MACHINE,                                      \
 667         .class_init = ccw_machine_##suffix##_class_init,                      \
 668         .instance_init = ccw_machine_##suffix##_instance_init,                \
 669     };                                                                        \
 670     static void ccw_machine_register_##suffix(void)                           \
 671     {                                                                         \
 672         type_register_static(&ccw_machine_##suffix##_info);                   \
 673     }                                                                         \
 674     type_init(ccw_machine_register_##suffix)
 675
 676 #define CCW_COMPAT_2_12 \
 677         HW_COMPAT_2_12
 678
 679 #define CCW_COMPAT_2_11 \
 680         HW_COMPAT_2_11 \
 681         {\
 682             .driver   = TYPE_SCLP_EVENT_FACILITY,\
 683             .property = "allow_all_mask_sizes",\
 684             .value    = "off",\
 685         },
 686
 687 #define CCW_COMPAT_2_10 \
 688         HW_COMPAT_2_10
 689
 690 #define CCW_COMPAT_2_9 \
 691         HW_COMPAT_2_9 \
 692         {\
 693             .driver   = TYPE_S390_STATTRIB,\
 694             .property = "migration-enabled",\
 695             .value    = "off",\
 696         },
 697
 698 #define CCW_COMPAT_2_8 \
 699         HW_COMPAT_2_8 \
 700         {\
 701             .driver   = TYPE_S390_FLIC_COMMON,\
 702             .property = "adapter_routes_max_batch",\
 703             .value    = "64",\
 704         },
 705
 706 #define CCW_COMPAT_2_7 \
 707         HW_COMPAT_2_7
 708
 709 #define CCW_COMPAT_2_6 \
 710         HW_COMPAT_2_6 \
 711         {\
 712             .driver   = TYPE_S390_IPL,\
 713             .property = "iplbext_migration",\
 714             .value    = "off",\
 715         }, {\
 716             .driver   = TYPE_VIRTUAL_CSS_BRIDGE,\
 717             .property = "css_dev_path",\
 718             .value    = "off",\
 719         },
 720
 721 #define CCW_COMPAT_2_5 \
 722         HW_COMPAT_2_5
 723
 724 #define CCW_COMPAT_2_4 \
 725         HW_COMPAT_2_4 \
 726         {\
 727             .driver   = TYPE_S390_SKEYS,\
 728             .property = "migration-enabled",\
 729             .value    = "off",\
 730         },{\
 731             .driver   = "virtio-blk-ccw",\
 732             .property = "max_revision",\
 733             .value    = "0",\
 734         },{\
 735             .driver   = "virtio-balloon-ccw",\
 736             .property = "max_revision",\
 737             .value    = "0",\
 738         },{\
 739             .driver   = "virtio-serial-ccw",\
 740             .property = "max_revision",\
 741             .value    = "0",\
 742         },{\
 743             .driver   = "virtio-9p-ccw",\
 744             .property = "max_revision",\
 745             .value    = "0",\
 746         },{\
 747             .driver   = "virtio-rng-ccw",\
 748             .property = "max_revision",\
 749             .value    = "0",\
 750         },{\
 751             .driver   = "virtio-net-ccw",\
 752             .property = "max_revision",\
 753             .value    = "0",\
 754         },{\
 755             .driver   = "virtio-scsi-ccw",\
 756             .property = "max_revision",\
 757             .value    = "0",\
 758         },{\
 759             .driver   = "vhost-scsi-ccw",\
 760             .property = "max_revision",\
 761             .value    = "0",\
 762         },
 763
 764 static void ccw_machine_3_0_instance_options(MachineState *machine)
 765 {
 766 }
 767
 768 static void ccw_machine_3_0_class_options(MachineClass *mc)
 769 {
 770 }
 771 DEFINE_CCW_MACHINE(3_0, "3.0", true);
 772
 773 static void ccw_machine_2_12_instance_options(MachineState *machine)
 774 {
 775     ccw_machine_3_0_instance_options(machine);
 776     s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
 777     s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
 778 }
 779
 780 static void ccw_machine_2_12_class_options(MachineClass *mc)
 781 {
 782     ccw_machine_3_0_class_options(mc);
 783     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_12);
 784 }
 785 DEFINE_CCW_MACHINE(2_12, "2.12", false);
 786
 787 static void ccw_machine_2_11_instance_options(MachineState *machine)
 788 {
 789     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
 790     ccw_machine_2_12_instance_options(machine);
 791
 792     /* before 2.12 we emulated the very first z900 */
 793     s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
 794 }
 795
 796 static void ccw_machine_2_11_class_options(MachineClass *mc)
 797 {
 798     ccw_machine_2_12_class_options(mc);
 799     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_11);
 800 }
 801 DEFINE_CCW_MACHINE(2_11, "2.11", false);
 802
 803 static void ccw_machine_2_10_instance_options(MachineState *machine)
 804 {
 805     ccw_machine_2_11_instance_options(machine);
 806 }
 807
 808 static void ccw_machine_2_10_class_options(MachineClass *mc)
 809 {
 810     ccw_machine_2_11_class_options(mc);
 811     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_10);
 812 }
 813 DEFINE_CCW_MACHINE(2_10, "2.10", false);
 814
 815 static void ccw_machine_2_9_instance_options(MachineState *machine)
 816 {
 817     ccw_machine_2_10_instance_options(machine);
 818     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP);
 819     s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2);
 820     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI);
 821     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION);
 822     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION);
 823 }
 824
 825 static void ccw_machine_2_9_class_options(MachineClass *mc)
 826 {
 827     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 828
 829     ccw_machine_2_10_class_options(mc);
 830     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_9);
 831     s390mc->css_migration_enabled = false;
 832 }
 833 DEFINE_CCW_MACHINE(2_9, "2.9", false);
 834
 835 static void ccw_machine_2_8_instance_options(MachineState *machine)
 836 {
 837     ccw_machine_2_9_instance_options(machine);
 838 }
 839
 840 static void ccw_machine_2_8_class_options(MachineClass *mc)
 841 {
 842     ccw_machine_2_9_class_options(mc);
 843     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_8);
 844 }
 845 DEFINE_CCW_MACHINE(2_8, "2.8", false);
 846
 847 static void ccw_machine_2_7_instance_options(MachineState *machine)
 848 {
 849     ccw_machine_2_8_instance_options(machine);
 850 }
 851
 852 static void ccw_machine_2_7_class_options(MachineClass *mc)
 853 {
 854     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 855
 856     s390mc->cpu_model_allowed = false;
 857     ccw_machine_2_8_class_options(mc);
 858     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_7);
 859 }
 860 DEFINE_CCW_MACHINE(2_7, "2.7", false);
 861
 862 static void ccw_machine_2_6_instance_options(MachineState *machine)
 863 {
 864     ccw_machine_2_7_instance_options(machine);
 865 }
 866
 867 static void ccw_machine_2_6_class_options(MachineClass *mc)
 868 {
 869     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 870
 871     s390mc->ri_allowed = false;
 872     ccw_machine_2_7_class_options(mc);
 873     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_6);
 874 }
 875 DEFINE_CCW_MACHINE(2_6, "2.6", false);
 876
 877 static void ccw_machine_2_5_instance_options(MachineState *machine)
 878 {
 879     ccw_machine_2_6_instance_options(machine);
 880 }
 881
 882 static void ccw_machine_2_5_class_options(MachineClass *mc)
 883 {
 884     ccw_machine_2_6_class_options(mc);
 885     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_5);
 886 }
 887 DEFINE_CCW_MACHINE(2_5, "2.5", false);
 888
 889 static void ccw_machine_2_4_instance_options(MachineState *machine)
 890 {
 891     ccw_machine_2_5_instance_options(machine);
 892 }
 893
 894 static void ccw_machine_2_4_class_options(MachineClass *mc)
 895 {
 896     ccw_machine_2_5_class_options(mc);
 897     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_4);
 898 }
 899 DEFINE_CCW_MACHINE(2_4, "2.4", false);
 900
 901 static void ccw_machine_register_types(void)
 902 {
 903     type_register_static(&ccw_machine_info);
 904 }
 905
 906 type_init(ccw_machine_register_types)