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/compat.h"
  31 #include "ipl.h"
  32 #include "hw/s390x/s390-virtio-ccw.h"
  33 #include "hw/s390x/css-bridge.h"
  34 #include "migration/register.h"
  35 #include "cpu_models.h"
  36 #include "hw/nmi.h"
  37
  38 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
  39 {
  40     static MachineState *ms;
  41
  42     if (!ms) {
  43         ms = MACHINE(qdev_get_machine());
  44         g_assert(ms->possible_cpus);
  45     }
  46
  47     /* CPU address corresponds to the core_id and the index */
  48     if (cpu_addr >= ms->possible_cpus->len) {
  49         return NULL;
  50     }
  51     return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu);
  52 }
  53
  54 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id,
  55                               Error **errp)
  56 {
  57     S390CPU *cpu = S390_CPU(object_new(typename));
  58     Error *err = NULL;
  59
  60     object_property_set_int(OBJECT(cpu), core_id, "core-id", &err);
  61     if (err != NULL) {
  62         goto out;
  63     }
  64     object_property_set_bool(OBJECT(cpu), true, "realized", &err);
  65
  66 out:
  67     object_unref(OBJECT(cpu));
  68     if (err) {
  69         error_propagate(errp, err);
  70         cpu = NULL;
  71     }
  72     return cpu;
  73 }
  74
  75 static void s390_init_cpus(MachineState *machine)
  76 {
  77     MachineClass *mc = MACHINE_GET_CLASS(machine);
  78     int i;
  79
  80     if (tcg_enabled() && max_cpus > 1) {
  81         error_report("WARNING: SMP support on s390x is experimental!");
  82     }
  83
  84     /* initialize possible_cpus */
  85     mc->possible_cpu_arch_ids(machine);
  86
  87     for (i = 0; i < smp_cpus; i++) {
  88         s390x_new_cpu(machine->cpu_type, i, &error_fatal);
  89     }
  90 }
  91
  92 static const char *const reset_dev_types[] = {
  93     TYPE_VIRTUAL_CSS_BRIDGE,
  94     "s390-sclp-event-facility",
  95     "s390-flic",
  96     "diag288",
  97 };
  98
  99 void subsystem_reset(void)
 100 {
 101     DeviceState *dev;
 102     int i;
 103
 104     for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
 105         dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
 106         if (dev) {
 107             qdev_reset_all(dev);
 108         }
 109     }
 110 }
 111
 112 static int virtio_ccw_hcall_notify(const uint64_t *args)
 113 {
 114     uint64_t subch_id = args[0];
 115     uint64_t queue = args[1];
 116     SubchDev *sch;
 117     int cssid, ssid, schid, m;
 118
 119     if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
 120         return -EINVAL;
 121     }
 122     sch = css_find_subch(m, cssid, ssid, schid);
 123     if (!sch || !css_subch_visible(sch)) {
 124         return -EINVAL;
 125     }
 126     if (queue >= VIRTIO_QUEUE_MAX) {
 127         return -EINVAL;
 128     }
 129     virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
 130     return 0;
 131
 132 }
 133
 134 static int virtio_ccw_hcall_early_printk(const uint64_t *args)
 135 {
 136     uint64_t mem = args[0];
 137
 138     if (mem < ram_size) {
 139         /* Early printk */
 140         return 0;
 141     }
 142     return -EINVAL;
 143 }
 144
 145 static void virtio_ccw_register_hcalls(void)
 146 {
 147     s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
 148                                    virtio_ccw_hcall_notify);
 149     /* Tolerate early printk. */
 150     s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
 151                                    virtio_ccw_hcall_early_printk);
 152 }
 153
 154 /*
 155  * KVM does only support memory slots up to KVM_MEM_MAX_NR_PAGES pages
 156  * as the dirty bitmap must be managed by bitops that take an int as
 157  * position indicator. If we have a guest beyond that we will split off
 158  * new subregions. The split must happen on a segment boundary (1MB).
 159  */
 160 #define KVM_MEM_MAX_NR_PAGES ((1ULL << 31) - 1)
 161 #define SEG_MSK (~0xfffffULL)
 162 #define KVM_SLOT_MAX_BYTES ((KVM_MEM_MAX_NR_PAGES * TARGET_PAGE_SIZE) & SEG_MSK)
 163 static void s390_memory_init(ram_addr_t mem_size)
 164 {
 165     MemoryRegion *sysmem = get_system_memory();
 166     ram_addr_t chunk, offset = 0;
 167     unsigned int number = 0;
 168     gchar *name;
 169
 170     /* allocate RAM for core */
 171     name = g_strdup_printf("s390.ram");
 172     while (mem_size) {
 173         MemoryRegion *ram = g_new(MemoryRegion, 1);
 174         uint64_t size = mem_size;
 175
 176         /* KVM does not allow memslots >= 8 TB */
 177         chunk = MIN(size, KVM_SLOT_MAX_BYTES);
 178         memory_region_allocate_system_memory(ram, NULL, name, chunk);
 179         memory_region_add_subregion(sysmem, offset, ram);
 180         mem_size -= chunk;
 181         offset += chunk;
 182         g_free(name);
 183         name = g_strdup_printf("s390.ram.%u", ++number);
 184     }
 185     g_free(name);
 186
 187     /* Initialize storage key device */
 188     s390_skeys_init();
 189     /* Initialize storage attributes device */
 190     s390_stattrib_init();
 191 }
 192
 193 #define S390_TOD_CLOCK_VALUE_MISSING    0x00
 194 #define S390_TOD_CLOCK_VALUE_PRESENT    0x01
 195
 196 static void gtod_save(QEMUFile *f, void *opaque)
 197 {
 198     uint64_t tod_low;
 199     uint8_t tod_high;
 200     int r;
 201
 202     r = s390_get_clock(&tod_high, &tod_low);
 203     if (r) {
 204         warn_report("Unable to get guest clock for migration: %s",
 205                     strerror(-r));
 206         error_printf("Guest clock will not be migrated "
 207                      "which could cause the guest to hang.");
 208         qemu_put_byte(f, S390_TOD_CLOCK_VALUE_MISSING);
 209         return;
 210     }
 211
 212     qemu_put_byte(f, S390_TOD_CLOCK_VALUE_PRESENT);
 213     qemu_put_byte(f, tod_high);
 214     qemu_put_be64(f, tod_low);
 215 }
 216
 217 static int gtod_load(QEMUFile *f, void *opaque, int version_id)
 218 {
 219     uint64_t tod_low;
 220     uint8_t tod_high;
 221     int r;
 222
 223     if (qemu_get_byte(f) == S390_TOD_CLOCK_VALUE_MISSING) {
 224         warn_report("Guest clock was not migrated. This could "
 225                     "cause the guest to hang.");
 226         return 0;
 227     }
 228
 229     tod_high = qemu_get_byte(f);
 230     tod_low = qemu_get_be64(f);
 231
 232     r = s390_set_clock(&tod_high, &tod_low);
 233     if (r) {
 234         error_report("Unable to set KVM guest TOD clock: %s", strerror(-r));
 235     }
 236
 237     return r;
 238 }
 239
 240 static SaveVMHandlers savevm_gtod = {
 241     .save_state = gtod_save,
 242     .load_state = gtod_load,
 243 };
 244
 245 static void s390_init_ipl_dev(const char *kernel_filename,
 246                               const char *kernel_cmdline,
 247                               const char *initrd_filename, const char *firmware,
 248                               const char *netboot_fw, bool enforce_bios)
 249 {
 250     Object *new = object_new(TYPE_S390_IPL);
 251     DeviceState *dev = DEVICE(new);
 252
 253     if (kernel_filename) {
 254         qdev_prop_set_string(dev, "kernel", kernel_filename);
 255     }
 256     if (initrd_filename) {
 257         qdev_prop_set_string(dev, "initrd", initrd_filename);
 258     }
 259     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
 260     qdev_prop_set_string(dev, "firmware", firmware);
 261     qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
 262     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
 263     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
 264                               new, NULL);
 265     object_unref(new);
 266     qdev_init_nofail(dev);
 267 }
 268
 269 static void s390_create_virtio_net(BusState *bus, const char *name)
 270 {
 271     int i;
 272
 273     for (i = 0; i < nb_nics; i++) {
 274         NICInfo *nd = &nd_table[i];
 275         DeviceState *dev;
 276
 277         if (!nd->model) {
 278             nd->model = g_strdup("virtio");
 279         }
 280
 281         qemu_check_nic_model(nd, "virtio");
 282
 283         dev = qdev_create(bus, name);
 284         qdev_set_nic_properties(dev, nd);
 285         qdev_init_nofail(dev);
 286     }
 287 }
 288
 289 static void ccw_init(MachineState *machine)
 290 {
 291     int ret;
 292     VirtualCssBus *css_bus;
 293     DeviceState *dev;
 294
 295     s390_sclp_init();
 296     s390_memory_init(machine->ram_size);
 297
 298     /* init CPUs (incl. CPU model) early so s390_has_feature() works */
 299     s390_init_cpus(machine);
 300
 301     s390_flic_init();
 302
 303     /* init the SIGP facility */
 304     s390_init_sigp();
 305
 306     /* get a BUS */
 307     css_bus = virtual_css_bus_init();
 308     s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
 309                       machine->initrd_filename, "s390-ccw.img",
 310                       "s390-netboot.img", true);
 311
 312     /*
 313      * We cannot easily make the pci host bridge conditional as older QEMUs
 314      * always created it. Doing so would break migration across QEMU versions.
 315      */
 316     dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE);
 317     object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
 318                               OBJECT(dev), NULL);
 319     qdev_init_nofail(dev);
 320
 321     /* register hypercalls */
 322     virtio_ccw_register_hcalls();
 323
 324     s390_enable_css_support(s390_cpu_addr2state(0));
 325     /*
 326      * Non mcss-e enabled guests only see the devices from the default
 327      * css, which is determined by the value of the squash_mcss property.
 328      */
 329     if (css_bus->squash_mcss) {
 330         ret = css_create_css_image(0, true);
 331     } else {
 332         ret = css_create_css_image(VIRTUAL_CSSID, true);
 333     }
 334     if (qemu_opt_get(qemu_get_machine_opts(), "s390-squash-mcss")) {
 335         warn_report("The machine property 's390-squash-mcss' is deprecated"
 336                     " (obsoleted by lifting the cssid restrictions).");
 337     }
 338
 339     assert(ret == 0);
 340     if (css_migration_enabled()) {
 341         css_register_vmstate();
 342     }
 343
 344     /* Create VirtIO network adapters */
 345     s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw");
 346
 347     /* Register savevm handler for guest TOD clock */
 348     register_savevm_live(NULL, "todclock", 0, 1, &savevm_gtod, NULL);
 349 }
 350
 351 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
 352                         DeviceState *dev, Error **errp)
 353 {
 354     MachineState *ms = MACHINE(hotplug_dev);
 355     S390CPU *cpu = S390_CPU(dev);
 356
 357     g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
 358     ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev);
 359
 360     if (dev->hotplugged) {
 361         raise_irq_cpu_hotplug();
 362     }
 363 }
 364
 365 static void s390_machine_reset(void)
 366 {
 367     S390CPU *ipl_cpu = S390_CPU(qemu_get_cpu(0));
 368
 369     s390_cmma_reset();
 370     qemu_devices_reset();
 371     s390_crypto_reset();
 372
 373     /* all cpus are stopped - configure and start the ipl cpu only */
 374     s390_ipl_prepare_cpu(ipl_cpu);
 375     s390_cpu_set_state(CPU_STATE_OPERATING, ipl_cpu);
 376 }
 377
 378 static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
 379                                      DeviceState *dev, Error **errp)
 380 {
 381     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
 382         s390_cpu_plug(hotplug_dev, dev, errp);
 383     }
 384 }
 385
 386 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev,
 387                                                DeviceState *dev, Error **errp)
 388 {
 389     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
 390         error_setg(errp, "CPU hot unplug not supported on this machine");
 391         return;
 392     }
 393 }
 394
 395 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *machine,
 396                                                      unsigned cpu_index)
 397 {
 398     g_assert(machine->possible_cpus && cpu_index < machine->possible_cpus->len);
 399
 400     return machine->possible_cpus->cpus[cpu_index].props;
 401 }
 402
 403 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
 404 {
 405     int i;
 406
 407     if (ms->possible_cpus) {
 408         g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
 409         return ms->possible_cpus;
 410     }
 411
 412     ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
 413                                   sizeof(CPUArchId) * max_cpus);
 414     ms->possible_cpus->len = max_cpus;
 415     for (i = 0; i < ms->possible_cpus->len; i++) {
 416         ms->possible_cpus->cpus[i].type = ms->cpu_type;
 417         ms->possible_cpus->cpus[i].vcpus_count = 1;
 418         ms->possible_cpus->cpus[i].arch_id = i;
 419         ms->possible_cpus->cpus[i].props.has_core_id = true;
 420         ms->possible_cpus->cpus[i].props.core_id = i;
 421     }
 422
 423     return ms->possible_cpus;
 424 }
 425
 426 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
 427                                                 DeviceState *dev)
 428 {
 429     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
 430         return HOTPLUG_HANDLER(machine);
 431     }
 432     return NULL;
 433 }
 434
 435 static void s390_hot_add_cpu(const int64_t id, Error **errp)
 436 {
 437     MachineState *machine = MACHINE(qdev_get_machine());
 438     ObjectClass *oc;
 439
 440     g_assert(machine->possible_cpus->cpus[0].cpu);
 441     oc = OBJECT_CLASS(CPU_GET_CLASS(machine->possible_cpus->cpus[0].cpu));
 442
 443     s390x_new_cpu(object_class_get_name(oc), id, errp);
 444 }
 445
 446 static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
 447 {
 448     CPUState *cs = qemu_get_cpu(cpu_index);
 449
 450     s390_cpu_restart(S390_CPU(cs));
 451 }
 452
 453 static void ccw_machine_class_init(ObjectClass *oc, void *data)
 454 {
 455     MachineClass *mc = MACHINE_CLASS(oc);
 456     NMIClass *nc = NMI_CLASS(oc);
 457     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
 458     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 459
 460     s390mc->ri_allowed = true;
 461     s390mc->cpu_model_allowed = true;
 462     s390mc->css_migration_enabled = true;
 463     mc->init = ccw_init;
 464     mc->reset = s390_machine_reset;
 465     mc->hot_add_cpu = s390_hot_add_cpu;
 466     mc->block_default_type = IF_VIRTIO;
 467     mc->no_cdrom = 1;
 468     mc->no_floppy = 1;
 469     mc->no_serial = 1;
 470     mc->no_parallel = 1;
 471     mc->no_sdcard = 1;
 472     mc->use_sclp = 1;
 473     mc->max_cpus = S390_MAX_CPUS;
 474     mc->has_hotpluggable_cpus = true;
 475     mc->get_hotplug_handler = s390_get_hotplug_handler;
 476     mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
 477     mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;
 478     /* it is overridden with 'host' cpu *in kvm_arch_init* */
 479     mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu");
 480     hc->plug = s390_machine_device_plug;
 481     hc->unplug_request = s390_machine_device_unplug_request;
 482     nc->nmi_monitor_handler = s390_nmi;
 483 }
 484
 485 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
 486 {
 487     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 488
 489     return ms->aes_key_wrap;
 490 }
 491
 492 static inline void machine_set_aes_key_wrap(Object *obj, bool value,
 493                                             Error **errp)
 494 {
 495     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 496
 497     ms->aes_key_wrap = value;
 498 }
 499
 500 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
 501 {
 502     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 503
 504     return ms->dea_key_wrap;
 505 }
 506
 507 static inline void machine_set_dea_key_wrap(Object *obj, bool value,
 508                                             Error **errp)
 509 {
 510     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 511
 512     ms->dea_key_wrap = value;
 513 }
 514
 515 static S390CcwMachineClass *current_mc;
 516
 517 static S390CcwMachineClass *get_machine_class(void)
 518 {
 519     if (unlikely(!current_mc)) {
 520         /*
 521         * No s390 ccw machine was instantiated, we are likely to
 522         * be called for the 'none' machine. The properties will
 523         * have their after-initialization values.
 524         */
 525         current_mc = S390_MACHINE_CLASS(
 526                      object_class_by_name(TYPE_S390_CCW_MACHINE));
 527     }
 528     return current_mc;
 529 }
 530
 531 bool ri_allowed(void)
 532 {
 533     /* for "none" machine this results in true */
 534     return get_machine_class()->ri_allowed;
 535 }
 536
 537 bool cpu_model_allowed(void)
 538 {
 539     /* for "none" machine this results in true */
 540     return get_machine_class()->cpu_model_allowed;
 541 }
 542
 543 static char *machine_get_loadparm(Object *obj, Error **errp)
 544 {
 545     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 546
 547     return g_memdup(ms->loadparm, sizeof(ms->loadparm));
 548 }
 549
 550 static void machine_set_loadparm(Object *obj, const char *val, Error **errp)
 551 {
 552     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 553     int i;
 554
 555     for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) {
 556         uint8_t c = qemu_toupper(val[i]); /* mimic HMC */
 557
 558         if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') ||
 559             (c == ' ')) {
 560             ms->loadparm[i] = c;
 561         } else {
 562             error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)",
 563                        c, c);
 564             return;
 565         }
 566     }
 567
 568     for (; i < sizeof(ms->loadparm); i++) {
 569         ms->loadparm[i] = ' '; /* pad right with spaces */
 570     }
 571 }
 572 static inline bool machine_get_squash_mcss(Object *obj, Error **errp)
 573 {
 574     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 575
 576     return ms->s390_squash_mcss;
 577 }
 578
 579 static inline void machine_set_squash_mcss(Object *obj, bool value,
 580                                            Error **errp)
 581 {
 582     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 583
 584     ms->s390_squash_mcss = value;
 585 }
 586
 587 static inline void s390_machine_initfn(Object *obj)
 588 {
 589     object_property_add_bool(obj, "aes-key-wrap",
 590                              machine_get_aes_key_wrap,
 591                              machine_set_aes_key_wrap, NULL);
 592     object_property_set_description(obj, "aes-key-wrap",
 593             "enable/disable AES key wrapping using the CPACF wrapping key",
 594             NULL);
 595     object_property_set_bool(obj, true, "aes-key-wrap", NULL);
 596
 597     object_property_add_bool(obj, "dea-key-wrap",
 598                              machine_get_dea_key_wrap,
 599                              machine_set_dea_key_wrap, NULL);
 600     object_property_set_description(obj, "dea-key-wrap",
 601             "enable/disable DEA key wrapping using the CPACF wrapping key",
 602             NULL);
 603     object_property_set_bool(obj, true, "dea-key-wrap", NULL);
 604     object_property_add_str(obj, "loadparm",
 605             machine_get_loadparm, machine_set_loadparm, NULL);
 606     object_property_set_description(obj, "loadparm",
 607             "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted"
 608             " to upper case) to pass to machine loader, boot manager,"
 609             " and guest kernel",
 610             NULL);
 611     object_property_add_bool(obj, "s390-squash-mcss",
 612                              machine_get_squash_mcss,
 613                              machine_set_squash_mcss, NULL);
 614     object_property_set_description(obj, "s390-squash-mcss", "(deprecated) "
 615             "enable/disable squashing subchannels into the default css",
 616             NULL);
 617     object_property_set_bool(obj, false, "s390-squash-mcss", NULL);
 618 }
 619
 620 static const TypeInfo ccw_machine_info = {
 621     .name          = TYPE_S390_CCW_MACHINE,
 622     .parent        = TYPE_MACHINE,
 623     .abstract      = true,
 624     .instance_size = sizeof(S390CcwMachineState),
 625     .instance_init = s390_machine_initfn,
 626     .class_size = sizeof(S390CcwMachineClass),
 627     .class_init    = ccw_machine_class_init,
 628     .interfaces = (InterfaceInfo[]) {
 629         { TYPE_NMI },
 630         { TYPE_HOTPLUG_HANDLER},
 631         { }
 632     },
 633 };
 634
 635 bool css_migration_enabled(void)
 636 {
 637     return get_machine_class()->css_migration_enabled;
 638 }
 639
 640 #define DEFINE_CCW_MACHINE(suffix, verstr, latest)                            \
 641     static void ccw_machine_##suffix##_class_init(ObjectClass *oc,            \
 642                                                   void *data)                 \
 643     {                                                                         \
 644         MachineClass *mc = MACHINE_CLASS(oc);                                 \
 645         ccw_machine_##suffix##_class_options(mc);                             \
 646         mc->desc = "VirtIO-ccw based S390 machine v" verstr;                  \
 647         if (latest) {                                                         \
 648             mc->alias = "s390-ccw-virtio";                                    \
 649             mc->is_default = 1;                                               \
 650         }                                                                     \
 651     }                                                                         \
 652     static void ccw_machine_##suffix##_instance_init(Object *obj)             \
 653     {                                                                         \
 654         MachineState *machine = MACHINE(obj);                                 \
 655         current_mc = S390_MACHINE_CLASS(MACHINE_GET_CLASS(machine));          \
 656         ccw_machine_##suffix##_instance_options(machine);                     \
 657     }                                                                         \
 658     static const TypeInfo ccw_machine_##suffix##_info = {                     \
 659         .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr),                 \
 660         .parent = TYPE_S390_CCW_MACHINE,                                      \
 661         .class_init = ccw_machine_##suffix##_class_init,                      \
 662         .instance_init = ccw_machine_##suffix##_instance_init,                \
 663     };                                                                        \
 664     static void ccw_machine_register_##suffix(void)                           \
 665     {                                                                         \
 666         type_register_static(&ccw_machine_##suffix##_info);                   \
 667     }                                                                         \
 668     type_init(ccw_machine_register_##suffix)
 669
 670 #define CCW_COMPAT_2_11 \
 671         HW_COMPAT_2_11
 672
 673 #define CCW_COMPAT_2_10 \
 674         HW_COMPAT_2_10
 675
 676 #define CCW_COMPAT_2_9 \
 677         HW_COMPAT_2_9 \
 678         {\
 679             .driver   = TYPE_S390_STATTRIB,\
 680             .property = "migration-enabled",\
 681             .value    = "off",\
 682         },
 683
 684 #define CCW_COMPAT_2_8 \
 685         HW_COMPAT_2_8 \
 686         {\
 687             .driver   = TYPE_S390_FLIC_COMMON,\
 688             .property = "adapter_routes_max_batch",\
 689             .value    = "64",\
 690         },
 691
 692 #define CCW_COMPAT_2_7 \
 693         HW_COMPAT_2_7
 694
 695 #define CCW_COMPAT_2_6 \
 696         HW_COMPAT_2_6 \
 697         {\
 698             .driver   = TYPE_S390_IPL,\
 699             .property = "iplbext_migration",\
 700             .value    = "off",\
 701         }, {\
 702             .driver   = TYPE_VIRTUAL_CSS_BRIDGE,\
 703             .property = "css_dev_path",\
 704             .value    = "off",\
 705         },
 706
 707 #define CCW_COMPAT_2_5 \
 708         HW_COMPAT_2_5
 709
 710 #define CCW_COMPAT_2_4 \
 711         HW_COMPAT_2_4 \
 712         {\
 713             .driver   = TYPE_S390_SKEYS,\
 714             .property = "migration-enabled",\
 715             .value    = "off",\
 716         },{\
 717             .driver   = "virtio-blk-ccw",\
 718             .property = "max_revision",\
 719             .value    = "0",\
 720         },{\
 721             .driver   = "virtio-balloon-ccw",\
 722             .property = "max_revision",\
 723             .value    = "0",\
 724         },{\
 725             .driver   = "virtio-serial-ccw",\
 726             .property = "max_revision",\
 727             .value    = "0",\
 728         },{\
 729             .driver   = "virtio-9p-ccw",\
 730             .property = "max_revision",\
 731             .value    = "0",\
 732         },{\
 733             .driver   = "virtio-rng-ccw",\
 734             .property = "max_revision",\
 735             .value    = "0",\
 736         },{\
 737             .driver   = "virtio-net-ccw",\
 738             .property = "max_revision",\
 739             .value    = "0",\
 740         },{\
 741             .driver   = "virtio-scsi-ccw",\
 742             .property = "max_revision",\
 743             .value    = "0",\
 744         },{\
 745             .driver   = "vhost-scsi-ccw",\
 746             .property = "max_revision",\
 747             .value    = "0",\
 748         },
 749
 750 static void ccw_machine_2_12_instance_options(MachineState *machine)
 751 {
 752 }
 753
 754 static void ccw_machine_2_12_class_options(MachineClass *mc)
 755 {
 756 }
 757 DEFINE_CCW_MACHINE(2_12, "2.12", true);
 758
 759 static void ccw_machine_2_11_instance_options(MachineState *machine)
 760 {
 761     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
 762     ccw_machine_2_12_instance_options(machine);
 763
 764     /* before 2.12 we emulated the very first z900 */
 765     s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
 766 }
 767
 768 static void ccw_machine_2_11_class_options(MachineClass *mc)
 769 {
 770     ccw_machine_2_12_class_options(mc);
 771     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_11);
 772 }
 773 DEFINE_CCW_MACHINE(2_11, "2.11", false);
 774
 775 static void ccw_machine_2_10_instance_options(MachineState *machine)
 776 {
 777     ccw_machine_2_11_instance_options(machine);
 778 }
 779
 780 static void ccw_machine_2_10_class_options(MachineClass *mc)
 781 {
 782     ccw_machine_2_11_class_options(mc);
 783     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_10);
 784 }
 785 DEFINE_CCW_MACHINE(2_10, "2.10", false);
 786
 787 static void ccw_machine_2_9_instance_options(MachineState *machine)
 788 {
 789     ccw_machine_2_10_instance_options(machine);
 790     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP);
 791     s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2);
 792     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI);
 793     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION);
 794     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION);
 795 }
 796
 797 static void ccw_machine_2_9_class_options(MachineClass *mc)
 798 {
 799     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 800
 801     ccw_machine_2_10_class_options(mc);
 802     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_9);
 803     s390mc->css_migration_enabled = false;
 804 }
 805 DEFINE_CCW_MACHINE(2_9, "2.9", false);
 806
 807 static void ccw_machine_2_8_instance_options(MachineState *machine)
 808 {
 809     ccw_machine_2_9_instance_options(machine);
 810 }
 811
 812 static void ccw_machine_2_8_class_options(MachineClass *mc)
 813 {
 814     ccw_machine_2_9_class_options(mc);
 815     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_8);
 816 }
 817 DEFINE_CCW_MACHINE(2_8, "2.8", false);
 818
 819 static void ccw_machine_2_7_instance_options(MachineState *machine)
 820 {
 821     ccw_machine_2_8_instance_options(machine);
 822 }
 823
 824 static void ccw_machine_2_7_class_options(MachineClass *mc)
 825 {
 826     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 827
 828     s390mc->cpu_model_allowed = false;
 829     ccw_machine_2_8_class_options(mc);
 830     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_7);
 831 }
 832 DEFINE_CCW_MACHINE(2_7, "2.7", false);
 833
 834 static void ccw_machine_2_6_instance_options(MachineState *machine)
 835 {
 836     ccw_machine_2_7_instance_options(machine);
 837 }
 838
 839 static void ccw_machine_2_6_class_options(MachineClass *mc)
 840 {
 841     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 842
 843     s390mc->ri_allowed = false;
 844     ccw_machine_2_7_class_options(mc);
 845     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_6);
 846 }
 847 DEFINE_CCW_MACHINE(2_6, "2.6", false);
 848
 849 static void ccw_machine_2_5_instance_options(MachineState *machine)
 850 {
 851     ccw_machine_2_6_instance_options(machine);
 852 }
 853
 854 static void ccw_machine_2_5_class_options(MachineClass *mc)
 855 {
 856     ccw_machine_2_6_class_options(mc);
 857     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_5);
 858 }
 859 DEFINE_CCW_MACHINE(2_5, "2.5", false);
 860
 861 static void ccw_machine_2_4_instance_options(MachineState *machine)
 862 {
 863     ccw_machine_2_5_instance_options(machine);
 864 }
 865
 866 static void ccw_machine_2_4_class_options(MachineClass *mc)
 867 {
 868     ccw_machine_2_5_class_options(mc);
 869     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_4);
 870 }
 871 DEFINE_CCW_MACHINE(2_4, "2.4", false);
 872
 873 static void ccw_machine_register_types(void)
 874 {
 875     type_register_static(&ccw_machine_info);
 876 }
 877
 878 type_init(ccw_machine_register_types)