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
  39 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
  40 {
  41     static MachineState *ms;
  42
  43     if (!ms) {
  44         ms = MACHINE(qdev_get_machine());
  45         g_assert(ms->possible_cpus);
  46     }
  47
  48     /* CPU address corresponds to the core_id and the index */
  49     if (cpu_addr >= ms->possible_cpus->len) {
  50         return NULL;
  51     }
  52     return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu);
  53 }
  54
  55 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id,
  56                               Error **errp)
  57 {
  58     S390CPU *cpu = S390_CPU(object_new(typename));
  59     Error *err = NULL;
  60
  61     object_property_set_int(OBJECT(cpu), core_id, "core-id", &err);
  62     if (err != NULL) {
  63         goto out;
  64     }
  65     object_property_set_bool(OBJECT(cpu), true, "realized", &err);
  66
  67 out:
  68     object_unref(OBJECT(cpu));
  69     if (err) {
  70         error_propagate(errp, err);
  71         cpu = NULL;
  72     }
  73     return cpu;
  74 }
  75
  76 static void s390_init_cpus(MachineState *machine)
  77 {
  78     MachineClass *mc = MACHINE_GET_CLASS(machine);
  79     int i;
  80
  81     /* initialize possible_cpus */
  82     mc->possible_cpu_arch_ids(machine);
  83
  84     for (i = 0; i < smp_cpus; i++) {
  85         s390x_new_cpu(machine->cpu_type, i, &error_fatal);
  86     }
  87 }
  88
  89 static const char *const reset_dev_types[] = {
  90     TYPE_VIRTUAL_CSS_BRIDGE,
  91     "s390-sclp-event-facility",
  92     "s390-flic",
  93     "diag288",
  94 };
  95
  96 static void subsystem_reset(void)
  97 {
  98     DeviceState *dev;
  99     int i;
 100
 101     for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
 102         dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
 103         if (dev) {
 104             qdev_reset_all(dev);
 105         }
 106     }
 107 }
 108
 109 static int virtio_ccw_hcall_notify(const uint64_t *args)
 110 {
 111     uint64_t subch_id = args[0];
 112     uint64_t queue = args[1];
 113     SubchDev *sch;
 114     int cssid, ssid, schid, m;
 115
 116     if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
 117         return -EINVAL;
 118     }
 119     sch = css_find_subch(m, cssid, ssid, schid);
 120     if (!sch || !css_subch_visible(sch)) {
 121         return -EINVAL;
 122     }
 123     if (queue >= VIRTIO_QUEUE_MAX) {
 124         return -EINVAL;
 125     }
 126     virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
 127     return 0;
 128
 129 }
 130
 131 static int virtio_ccw_hcall_early_printk(const uint64_t *args)
 132 {
 133     uint64_t mem = args[0];
 134
 135     if (mem < ram_size) {
 136         /* Early printk */
 137         return 0;
 138     }
 139     return -EINVAL;
 140 }
 141
 142 static void virtio_ccw_register_hcalls(void)
 143 {
 144     s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
 145                                    virtio_ccw_hcall_notify);
 146     /* Tolerate early printk. */
 147     s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
 148                                    virtio_ccw_hcall_early_printk);
 149 }
 150
 151 /*
 152  * KVM does only support memory slots up to KVM_MEM_MAX_NR_PAGES pages
 153  * as the dirty bitmap must be managed by bitops that take an int as
 154  * position indicator. If we have a guest beyond that we will split off
 155  * new subregions. The split must happen on a segment boundary (1MB).
 156  */
 157 #define KVM_MEM_MAX_NR_PAGES ((1ULL << 31) - 1)
 158 #define SEG_MSK (~0xfffffULL)
 159 #define KVM_SLOT_MAX_BYTES ((KVM_MEM_MAX_NR_PAGES * TARGET_PAGE_SIZE) & SEG_MSK)
 160 static void s390_memory_init(ram_addr_t mem_size)
 161 {
 162     MemoryRegion *sysmem = get_system_memory();
 163     ram_addr_t chunk, offset = 0;
 164     unsigned int number = 0;
 165     gchar *name;
 166
 167     /* allocate RAM for core */
 168     name = g_strdup_printf("s390.ram");
 169     while (mem_size) {
 170         MemoryRegion *ram = g_new(MemoryRegion, 1);
 171         uint64_t size = mem_size;
 172
 173         /* KVM does not allow memslots >= 8 TB */
 174         chunk = MIN(size, KVM_SLOT_MAX_BYTES);
 175         memory_region_allocate_system_memory(ram, NULL, name, chunk);
 176         memory_region_add_subregion(sysmem, offset, ram);
 177         mem_size -= chunk;
 178         offset += chunk;
 179         g_free(name);
 180         name = g_strdup_printf("s390.ram.%u", ++number);
 181     }
 182     g_free(name);
 183
 184     /* Initialize storage key device */
 185     s390_skeys_init();
 186     /* Initialize storage attributes device */
 187     s390_stattrib_init();
 188 }
 189
 190 #define S390_TOD_CLOCK_VALUE_MISSING    0x00
 191 #define S390_TOD_CLOCK_VALUE_PRESENT    0x01
 192
 193 static void gtod_save(QEMUFile *f, void *opaque)
 194 {
 195     uint64_t tod_low;
 196     uint8_t tod_high;
 197     int r;
 198
 199     r = s390_get_clock(&tod_high, &tod_low);
 200     if (r) {
 201         warn_report("Unable to get guest clock for migration: %s",
 202                     strerror(-r));
 203         error_printf("Guest clock will not be migrated "
 204                      "which could cause the guest to hang.");
 205         qemu_put_byte(f, S390_TOD_CLOCK_VALUE_MISSING);
 206         return;
 207     }
 208
 209     qemu_put_byte(f, S390_TOD_CLOCK_VALUE_PRESENT);
 210     qemu_put_byte(f, tod_high);
 211     qemu_put_be64(f, tod_low);
 212 }
 213
 214 static int gtod_load(QEMUFile *f, void *opaque, int version_id)
 215 {
 216     uint64_t tod_low;
 217     uint8_t tod_high;
 218     int r;
 219
 220     if (qemu_get_byte(f) == S390_TOD_CLOCK_VALUE_MISSING) {
 221         warn_report("Guest clock was not migrated. This could "
 222                     "cause the guest to hang.");
 223         return 0;
 224     }
 225
 226     tod_high = qemu_get_byte(f);
 227     tod_low = qemu_get_be64(f);
 228
 229     r = s390_set_clock(&tod_high, &tod_low);
 230     if (r) {
 231         error_report("Unable to set KVM guest TOD clock: %s", strerror(-r));
 232     }
 233
 234     return r;
 235 }
 236
 237 static SaveVMHandlers savevm_gtod = {
 238     .save_state = gtod_save,
 239     .load_state = gtod_load,
 240 };
 241
 242 static void s390_init_ipl_dev(const char *kernel_filename,
 243                               const char *kernel_cmdline,
 244                               const char *initrd_filename, const char *firmware,
 245                               const char *netboot_fw, bool enforce_bios)
 246 {
 247     Object *new = object_new(TYPE_S390_IPL);
 248     DeviceState *dev = DEVICE(new);
 249     char *netboot_fw_prop;
 250
 251     if (kernel_filename) {
 252         qdev_prop_set_string(dev, "kernel", kernel_filename);
 253     }
 254     if (initrd_filename) {
 255         qdev_prop_set_string(dev, "initrd", initrd_filename);
 256     }
 257     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
 258     qdev_prop_set_string(dev, "firmware", firmware);
 259     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
 260     netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort);
 261     if (!strlen(netboot_fw_prop)) {
 262         qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
 263     }
 264     g_free(netboot_fw_prop);
 265     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
 266                               new, NULL);
 267     object_unref(new);
 268     qdev_init_nofail(dev);
 269 }
 270
 271 static void s390_create_virtio_net(BusState *bus, const char *name)
 272 {
 273     int i;
 274
 275     for (i = 0; i < nb_nics; i++) {
 276         NICInfo *nd = &nd_table[i];
 277         DeviceState *dev;
 278
 279         if (!nd->model) {
 280             nd->model = g_strdup("virtio");
 281         }
 282
 283         qemu_check_nic_model(nd, "virtio");
 284
 285         dev = qdev_create(bus, name);
 286         qdev_set_nic_properties(dev, nd);
 287         qdev_init_nofail(dev);
 288     }
 289 }
 290
 291 static void s390_create_sclpconsole(const char *type, Chardev *chardev)
 292 {
 293     DeviceState *dev;
 294
 295     dev = qdev_create(sclp_get_event_facility_bus(), type);
 296     qdev_prop_set_chr(dev, "chardev", chardev);
 297     qdev_init_nofail(dev);
 298 }
 299
 300 static void ccw_init(MachineState *machine)
 301 {
 302     int ret;
 303     VirtualCssBus *css_bus;
 304     DeviceState *dev;
 305
 306     s390_sclp_init();
 307     s390_memory_init(machine->ram_size);
 308
 309     /* init CPUs (incl. CPU model) early so s390_has_feature() works */
 310     s390_init_cpus(machine);
 311
 312     s390_flic_init();
 313
 314     /* init the SIGP facility */
 315     s390_init_sigp();
 316
 317     /* get a BUS */
 318     css_bus = virtual_css_bus_init();
 319     s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
 320                       machine->initrd_filename, "s390-ccw.img",
 321                       "s390-netboot.img", true);
 322
 323     /*
 324      * We cannot easily make the pci host bridge conditional as older QEMUs
 325      * always created it. Doing so would break migration across QEMU versions.
 326      */
 327     dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE);
 328     object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
 329                               OBJECT(dev), NULL);
 330     qdev_init_nofail(dev);
 331
 332     /* register hypercalls */
 333     virtio_ccw_register_hcalls();
 334
 335     s390_enable_css_support(s390_cpu_addr2state(0));
 336     /*
 337      * Non mcss-e enabled guests only see the devices from the default
 338      * css, which is determined by the value of the squash_mcss property.
 339      */
 340     if (css_bus->squash_mcss) {
 341         ret = css_create_css_image(0, true);
 342     } else {
 343         ret = css_create_css_image(VIRTUAL_CSSID, true);
 344     }
 345     if (qemu_opt_get(qemu_get_machine_opts(), "s390-squash-mcss")) {
 346         warn_report("The machine property 's390-squash-mcss' is deprecated"
 347                     " (obsoleted by lifting the cssid restrictions).");
 348     }
 349
 350     assert(ret == 0);
 351     if (css_migration_enabled()) {
 352         css_register_vmstate();
 353     }
 354
 355     /* Create VirtIO network adapters */
 356     s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw");
 357
 358     /* init consoles */
 359     if (serial_hd(0)) {
 360         s390_create_sclpconsole("sclpconsole", serial_hd(0));
 361     }
 362     if (serial_hd(1)) {
 363         s390_create_sclpconsole("sclplmconsole", serial_hd(1));
 364     }
 365
 366     /* Register savevm handler for guest TOD clock */
 367     register_savevm_live(NULL, "todclock", 0, 1, &savevm_gtod, NULL);
 368 }
 369
 370 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
 371                         DeviceState *dev, Error **errp)
 372 {
 373     MachineState *ms = MACHINE(hotplug_dev);
 374     S390CPU *cpu = S390_CPU(dev);
 375
 376     g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
 377     ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev);
 378
 379     if (dev->hotplugged) {
 380         raise_irq_cpu_hotplug();
 381     }
 382 }
 383
 384 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg)
 385 {
 386     S390CPU *cpu = S390_CPU(cs);
 387
 388     s390_ipl_prepare_cpu(cpu);
 389     s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
 390 }
 391
 392 static void s390_machine_reset(void)
 393 {
 394     enum s390_reset reset_type;
 395     CPUState *cs, *t;
 396
 397     /* get the reset parameters, reset them once done */
 398     s390_ipl_get_reset_request(&cs, &reset_type);
 399
 400     /* all CPUs are paused and synchronized at this point */
 401     s390_cmma_reset();
 402
 403     switch (reset_type) {
 404     case S390_RESET_EXTERNAL:
 405     case S390_RESET_REIPL:
 406         qemu_devices_reset();
 407         s390_crypto_reset();
 408
 409         /* configure and start the ipl CPU only */
 410         run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL);
 411         break;
 412     case S390_RESET_MODIFIED_CLEAR:
 413         CPU_FOREACH(t) {
 414             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
 415         }
 416         subsystem_reset();
 417         s390_crypto_reset();
 418         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
 419         break;
 420     case S390_RESET_LOAD_NORMAL:
 421         CPU_FOREACH(t) {
 422             run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
 423         }
 424         subsystem_reset();
 425         run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL);
 426         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
 427         break;
 428     default:
 429         g_assert_not_reached();
 430     }
 431     s390_ipl_clear_reset_request();
 432 }
 433
 434 static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
 435                                      DeviceState *dev, Error **errp)
 436 {
 437     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
 438         s390_cpu_plug(hotplug_dev, dev, errp);
 439     }
 440 }
 441
 442 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev,
 443                                                DeviceState *dev, Error **errp)
 444 {
 445     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
 446         error_setg(errp, "CPU hot unplug not supported on this machine");
 447         return;
 448     }
 449 }
 450
 451 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms,
 452                                                      unsigned cpu_index)
 453 {
 454     MachineClass *mc = MACHINE_GET_CLASS(ms);
 455     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
 456
 457     assert(cpu_index < possible_cpus->len);
 458     return possible_cpus->cpus[cpu_index].props;
 459 }
 460
 461 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
 462 {
 463     int i;
 464
 465     if (ms->possible_cpus) {
 466         g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
 467         return ms->possible_cpus;
 468     }
 469
 470     ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
 471                                   sizeof(CPUArchId) * max_cpus);
 472     ms->possible_cpus->len = max_cpus;
 473     for (i = 0; i < ms->possible_cpus->len; i++) {
 474         ms->possible_cpus->cpus[i].type = ms->cpu_type;
 475         ms->possible_cpus->cpus[i].vcpus_count = 1;
 476         ms->possible_cpus->cpus[i].arch_id = i;
 477         ms->possible_cpus->cpus[i].props.has_core_id = true;
 478         ms->possible_cpus->cpus[i].props.core_id = i;
 479     }
 480
 481     return ms->possible_cpus;
 482 }
 483
 484 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
 485                                                 DeviceState *dev)
 486 {
 487     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
 488         return HOTPLUG_HANDLER(machine);
 489     }
 490     return NULL;
 491 }
 492
 493 static void s390_hot_add_cpu(const int64_t id, Error **errp)
 494 {
 495     MachineState *machine = MACHINE(qdev_get_machine());
 496     ObjectClass *oc;
 497
 498     g_assert(machine->possible_cpus->cpus[0].cpu);
 499     oc = OBJECT_CLASS(CPU_GET_CLASS(machine->possible_cpus->cpus[0].cpu));
 500
 501     s390x_new_cpu(object_class_get_name(oc), id, errp);
 502 }
 503
 504 static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
 505 {
 506     CPUState *cs = qemu_get_cpu(cpu_index);
 507
 508     s390_cpu_restart(S390_CPU(cs));
 509 }
 510
 511 static void ccw_machine_class_init(ObjectClass *oc, void *data)
 512 {
 513     MachineClass *mc = MACHINE_CLASS(oc);
 514     NMIClass *nc = NMI_CLASS(oc);
 515     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
 516     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 517
 518     s390mc->ri_allowed = true;
 519     s390mc->cpu_model_allowed = true;
 520     s390mc->css_migration_enabled = true;
 521     mc->init = ccw_init;
 522     mc->reset = s390_machine_reset;
 523     mc->hot_add_cpu = s390_hot_add_cpu;
 524     mc->block_default_type = IF_VIRTIO;
 525     mc->no_cdrom = 1;
 526     mc->no_floppy = 1;
 527     mc->no_parallel = 1;
 528     mc->no_sdcard = 1;
 529     mc->max_cpus = S390_MAX_CPUS;
 530     mc->has_hotpluggable_cpus = true;
 531     assert(!mc->get_hotplug_handler);
 532     mc->get_hotplug_handler = s390_get_hotplug_handler;
 533     mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
 534     mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;
 535     /* it is overridden with 'host' cpu *in kvm_arch_init* */
 536     mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu");
 537     hc->plug = s390_machine_device_plug;
 538     hc->unplug_request = s390_machine_device_unplug_request;
 539     nc->nmi_monitor_handler = s390_nmi;
 540 }
 541
 542 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
 543 {
 544     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 545
 546     return ms->aes_key_wrap;
 547 }
 548
 549 static inline void machine_set_aes_key_wrap(Object *obj, bool value,
 550                                             Error **errp)
 551 {
 552     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 553
 554     ms->aes_key_wrap = value;
 555 }
 556
 557 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
 558 {
 559     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 560
 561     return ms->dea_key_wrap;
 562 }
 563
 564 static inline void machine_set_dea_key_wrap(Object *obj, bool value,
 565                                             Error **errp)
 566 {
 567     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 568
 569     ms->dea_key_wrap = value;
 570 }
 571
 572 static S390CcwMachineClass *current_mc;
 573
 574 static S390CcwMachineClass *get_machine_class(void)
 575 {
 576     if (unlikely(!current_mc)) {
 577         /*
 578         * No s390 ccw machine was instantiated, we are likely to
 579         * be called for the 'none' machine. The properties will
 580         * have their after-initialization values.
 581         */
 582         current_mc = S390_MACHINE_CLASS(
 583                      object_class_by_name(TYPE_S390_CCW_MACHINE));
 584     }
 585     return current_mc;
 586 }
 587
 588 bool ri_allowed(void)
 589 {
 590     /* for "none" machine this results in true */
 591     return get_machine_class()->ri_allowed;
 592 }
 593
 594 bool cpu_model_allowed(void)
 595 {
 596     /* for "none" machine this results in true */
 597     return get_machine_class()->cpu_model_allowed;
 598 }
 599
 600 static char *machine_get_loadparm(Object *obj, Error **errp)
 601 {
 602     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 603
 604     return g_memdup(ms->loadparm, sizeof(ms->loadparm));
 605 }
 606
 607 static void machine_set_loadparm(Object *obj, const char *val, Error **errp)
 608 {
 609     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 610     int i;
 611
 612     for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) {
 613         uint8_t c = qemu_toupper(val[i]); /* mimic HMC */
 614
 615         if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') ||
 616             (c == ' ')) {
 617             ms->loadparm[i] = c;
 618         } else {
 619             error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)",
 620                        c, c);
 621             return;
 622         }
 623     }
 624
 625     for (; i < sizeof(ms->loadparm); i++) {
 626         ms->loadparm[i] = ' '; /* pad right with spaces */
 627     }
 628 }
 629 static inline bool machine_get_squash_mcss(Object *obj, Error **errp)
 630 {
 631     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 632
 633     return ms->s390_squash_mcss;
 634 }
 635
 636 static inline void machine_set_squash_mcss(Object *obj, bool value,
 637                                            Error **errp)
 638 {
 639     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
 640
 641     ms->s390_squash_mcss = value;
 642 }
 643
 644 static inline void s390_machine_initfn(Object *obj)
 645 {
 646     object_property_add_bool(obj, "aes-key-wrap",
 647                              machine_get_aes_key_wrap,
 648                              machine_set_aes_key_wrap, NULL);
 649     object_property_set_description(obj, "aes-key-wrap",
 650             "enable/disable AES key wrapping using the CPACF wrapping key",
 651             NULL);
 652     object_property_set_bool(obj, true, "aes-key-wrap", NULL);
 653
 654     object_property_add_bool(obj, "dea-key-wrap",
 655                              machine_get_dea_key_wrap,
 656                              machine_set_dea_key_wrap, NULL);
 657     object_property_set_description(obj, "dea-key-wrap",
 658             "enable/disable DEA key wrapping using the CPACF wrapping key",
 659             NULL);
 660     object_property_set_bool(obj, true, "dea-key-wrap", NULL);
 661     object_property_add_str(obj, "loadparm",
 662             machine_get_loadparm, machine_set_loadparm, NULL);
 663     object_property_set_description(obj, "loadparm",
 664             "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted"
 665             " to upper case) to pass to machine loader, boot manager,"
 666             " and guest kernel",
 667             NULL);
 668     object_property_add_bool(obj, "s390-squash-mcss",
 669                              machine_get_squash_mcss,
 670                              machine_set_squash_mcss, NULL);
 671     object_property_set_description(obj, "s390-squash-mcss", "(deprecated) "
 672             "enable/disable squashing subchannels into the default css",
 673             NULL);
 674     object_property_set_bool(obj, false, "s390-squash-mcss", NULL);
 675 }
 676
 677 static const TypeInfo ccw_machine_info = {
 678     .name          = TYPE_S390_CCW_MACHINE,
 679     .parent        = TYPE_MACHINE,
 680     .abstract      = true,
 681     .instance_size = sizeof(S390CcwMachineState),
 682     .instance_init = s390_machine_initfn,
 683     .class_size = sizeof(S390CcwMachineClass),
 684     .class_init    = ccw_machine_class_init,
 685     .interfaces = (InterfaceInfo[]) {
 686         { TYPE_NMI },
 687         { TYPE_HOTPLUG_HANDLER},
 688         { }
 689     },
 690 };
 691
 692 bool css_migration_enabled(void)
 693 {
 694     return get_machine_class()->css_migration_enabled;
 695 }
 696
 697 #define DEFINE_CCW_MACHINE(suffix, verstr, latest)                            \
 698     static void ccw_machine_##suffix##_class_init(ObjectClass *oc,            \
 699                                                   void *data)                 \
 700     {                                                                         \
 701         MachineClass *mc = MACHINE_CLASS(oc);                                 \
 702         ccw_machine_##suffix##_class_options(mc);                             \
 703         mc->desc = "VirtIO-ccw based S390 machine v" verstr;                  \
 704         if (latest) {                                                         \
 705             mc->alias = "s390-ccw-virtio";                                    \
 706             mc->is_default = 1;                                               \
 707         }                                                                     \
 708     }                                                                         \
 709     static void ccw_machine_##suffix##_instance_init(Object *obj)             \
 710     {                                                                         \
 711         MachineState *machine = MACHINE(obj);                                 \
 712         current_mc = S390_MACHINE_CLASS(MACHINE_GET_CLASS(machine));          \
 713         ccw_machine_##suffix##_instance_options(machine);                     \
 714     }                                                                         \
 715     static const TypeInfo ccw_machine_##suffix##_info = {                     \
 716         .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr),                 \
 717         .parent = TYPE_S390_CCW_MACHINE,                                      \
 718         .class_init = ccw_machine_##suffix##_class_init,                      \
 719         .instance_init = ccw_machine_##suffix##_instance_init,                \
 720     };                                                                        \
 721     static void ccw_machine_register_##suffix(void)                           \
 722     {                                                                         \
 723         type_register_static(&ccw_machine_##suffix##_info);                   \
 724     }                                                                         \
 725     type_init(ccw_machine_register_##suffix)
 726
 727 #define CCW_COMPAT_2_12 \
 728         HW_COMPAT_2_12
 729
 730 #define CCW_COMPAT_2_11 \
 731         HW_COMPAT_2_11 \
 732         {\
 733             .driver   = TYPE_SCLP_EVENT_FACILITY,\
 734             .property = "allow_all_mask_sizes",\
 735             .value    = "off",\
 736         },
 737
 738 #define CCW_COMPAT_2_10 \
 739         HW_COMPAT_2_10
 740
 741 #define CCW_COMPAT_2_9 \
 742         HW_COMPAT_2_9 \
 743         {\
 744             .driver   = TYPE_S390_STATTRIB,\
 745             .property = "migration-enabled",\
 746             .value    = "off",\
 747         },
 748
 749 #define CCW_COMPAT_2_8 \
 750         HW_COMPAT_2_8 \
 751         {\
 752             .driver   = TYPE_S390_FLIC_COMMON,\
 753             .property = "adapter_routes_max_batch",\
 754             .value    = "64",\
 755         },
 756
 757 #define CCW_COMPAT_2_7 \
 758         HW_COMPAT_2_7
 759
 760 #define CCW_COMPAT_2_6 \
 761         HW_COMPAT_2_6 \
 762         {\
 763             .driver   = TYPE_S390_IPL,\
 764             .property = "iplbext_migration",\
 765             .value    = "off",\
 766         }, {\
 767             .driver   = TYPE_VIRTUAL_CSS_BRIDGE,\
 768             .property = "css_dev_path",\
 769             .value    = "off",\
 770         },
 771
 772 #define CCW_COMPAT_2_5 \
 773         HW_COMPAT_2_5
 774
 775 #define CCW_COMPAT_2_4 \
 776         HW_COMPAT_2_4 \
 777         {\
 778             .driver   = TYPE_S390_SKEYS,\
 779             .property = "migration-enabled",\
 780             .value    = "off",\
 781         },{\
 782             .driver   = "virtio-blk-ccw",\
 783             .property = "max_revision",\
 784             .value    = "0",\
 785         },{\
 786             .driver   = "virtio-balloon-ccw",\
 787             .property = "max_revision",\
 788             .value    = "0",\
 789         },{\
 790             .driver   = "virtio-serial-ccw",\
 791             .property = "max_revision",\
 792             .value    = "0",\
 793         },{\
 794             .driver   = "virtio-9p-ccw",\
 795             .property = "max_revision",\
 796             .value    = "0",\
 797         },{\
 798             .driver   = "virtio-rng-ccw",\
 799             .property = "max_revision",\
 800             .value    = "0",\
 801         },{\
 802             .driver   = "virtio-net-ccw",\
 803             .property = "max_revision",\
 804             .value    = "0",\
 805         },{\
 806             .driver   = "virtio-scsi-ccw",\
 807             .property = "max_revision",\
 808             .value    = "0",\
 809         },{\
 810             .driver   = "vhost-scsi-ccw",\
 811             .property = "max_revision",\
 812             .value    = "0",\
 813         },
 814
 815 static void ccw_machine_3_0_instance_options(MachineState *machine)
 816 {
 817 }
 818
 819 static void ccw_machine_3_0_class_options(MachineClass *mc)
 820 {
 821 }
 822 DEFINE_CCW_MACHINE(3_0, "3.0", true);
 823
 824 static void ccw_machine_2_12_instance_options(MachineState *machine)
 825 {
 826     ccw_machine_3_0_instance_options(machine);
 827     s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
 828     s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
 829 }
 830
 831 static void ccw_machine_2_12_class_options(MachineClass *mc)
 832 {
 833     ccw_machine_3_0_class_options(mc);
 834     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_12);
 835 }
 836 DEFINE_CCW_MACHINE(2_12, "2.12", false);
 837
 838 static void ccw_machine_2_11_instance_options(MachineState *machine)
 839 {
 840     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
 841     ccw_machine_2_12_instance_options(machine);
 842
 843     /* before 2.12 we emulated the very first z900 */
 844     s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
 845 }
 846
 847 static void ccw_machine_2_11_class_options(MachineClass *mc)
 848 {
 849     ccw_machine_2_12_class_options(mc);
 850     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_11);
 851 }
 852 DEFINE_CCW_MACHINE(2_11, "2.11", false);
 853
 854 static void ccw_machine_2_10_instance_options(MachineState *machine)
 855 {
 856     ccw_machine_2_11_instance_options(machine);
 857 }
 858
 859 static void ccw_machine_2_10_class_options(MachineClass *mc)
 860 {
 861     ccw_machine_2_11_class_options(mc);
 862     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_10);
 863 }
 864 DEFINE_CCW_MACHINE(2_10, "2.10", false);
 865
 866 static void ccw_machine_2_9_instance_options(MachineState *machine)
 867 {
 868     ccw_machine_2_10_instance_options(machine);
 869     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP);
 870     s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2);
 871     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI);
 872     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION);
 873     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION);
 874 }
 875
 876 static void ccw_machine_2_9_class_options(MachineClass *mc)
 877 {
 878     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 879
 880     ccw_machine_2_10_class_options(mc);
 881     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_9);
 882     s390mc->css_migration_enabled = false;
 883 }
 884 DEFINE_CCW_MACHINE(2_9, "2.9", false);
 885
 886 static void ccw_machine_2_8_instance_options(MachineState *machine)
 887 {
 888     ccw_machine_2_9_instance_options(machine);
 889 }
 890
 891 static void ccw_machine_2_8_class_options(MachineClass *mc)
 892 {
 893     ccw_machine_2_9_class_options(mc);
 894     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_8);
 895 }
 896 DEFINE_CCW_MACHINE(2_8, "2.8", false);
 897
 898 static void ccw_machine_2_7_instance_options(MachineState *machine)
 899 {
 900     ccw_machine_2_8_instance_options(machine);
 901 }
 902
 903 static void ccw_machine_2_7_class_options(MachineClass *mc)
 904 {
 905     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 906
 907     s390mc->cpu_model_allowed = false;
 908     ccw_machine_2_8_class_options(mc);
 909     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_7);
 910 }
 911 DEFINE_CCW_MACHINE(2_7, "2.7", false);
 912
 913 static void ccw_machine_2_6_instance_options(MachineState *machine)
 914 {
 915     ccw_machine_2_7_instance_options(machine);
 916 }
 917
 918 static void ccw_machine_2_6_class_options(MachineClass *mc)
 919 {
 920     S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
 921
 922     s390mc->ri_allowed = false;
 923     ccw_machine_2_7_class_options(mc);
 924     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_6);
 925 }
 926 DEFINE_CCW_MACHINE(2_6, "2.6", false);
 927
 928 static void ccw_machine_2_5_instance_options(MachineState *machine)
 929 {
 930     ccw_machine_2_6_instance_options(machine);
 931 }
 932
 933 static void ccw_machine_2_5_class_options(MachineClass *mc)
 934 {
 935     ccw_machine_2_6_class_options(mc);
 936     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_5);
 937 }
 938 DEFINE_CCW_MACHINE(2_5, "2.5", false);
 939
 940 static void ccw_machine_2_4_instance_options(MachineState *machine)
 941 {
 942     ccw_machine_2_5_instance_options(machine);
 943 }
 944
 945 static void ccw_machine_2_4_class_options(MachineClass *mc)
 946 {
 947     ccw_machine_2_5_class_options(mc);
 948     SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_4);
 949 }
 950 DEFINE_CCW_MACHINE(2_4, "2.4", false);
 951
 952 static void ccw_machine_register_types(void)
 953 {
 954     type_register_static(&ccw_machine_info);
 955 }
 956
 957 type_init(ccw_machine_register_types)