s390-virtio-ccw.c (37450B)
1 /* 2 * virtio ccw machine 3 * 4 * Copyright 2012, 2020 IBM Corp. 5 * Copyright (c) 2009 Alexander Graf <agraf@suse.de> 6 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 7 * Janosch Frank <frankja@linux.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or (at 10 * your option) any later version. See the COPYING file in the top-level 11 * directory. 12 */ 13 14 #include "qemu/osdep.h" 15 #include "qapi/error.h" 16 #include "exec/ram_addr.h" 17 #include "hw/s390x/s390-virtio-hcall.h" 18 #include "hw/s390x/sclp.h" 19 #include "hw/s390x/s390_flic.h" 20 #include "hw/s390x/ioinst.h" 21 #include "hw/s390x/css.h" 22 #include "virtio-ccw.h" 23 #include "qemu/config-file.h" 24 #include "qemu/ctype.h" 25 #include "qemu/error-report.h" 26 #include "qemu/option.h" 27 #include "qemu/qemu-print.h" 28 #include "qemu/units.h" 29 #include "hw/s390x/s390-pci-bus.h" 30 #include "sysemu/reset.h" 31 #include "hw/s390x/storage-keys.h" 32 #include "hw/s390x/storage-attributes.h" 33 #include "hw/s390x/event-facility.h" 34 #include "ipl.h" 35 #include "hw/s390x/s390-virtio-ccw.h" 36 #include "hw/s390x/css-bridge.h" 37 #include "hw/s390x/ap-bridge.h" 38 #include "migration/register.h" 39 #include "cpu_models.h" 40 #include "hw/nmi.h" 41 #include "hw/qdev-properties.h" 42 #include "hw/s390x/tod.h" 43 #include "sysemu/sysemu.h" 44 #include "hw/s390x/pv.h" 45 #include "migration/blocker.h" 46 #include "qapi/visitor.h" 47 48 static Error *pv_mig_blocker; 49 50 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 51 { 52 static MachineState *ms; 53 54 if (!ms) { 55 ms = MACHINE(qdev_get_machine()); 56 g_assert(ms->possible_cpus); 57 } 58 59 /* CPU address corresponds to the core_id and the index */ 60 if (cpu_addr >= ms->possible_cpus->len) { 61 return NULL; 62 } 63 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 64 } 65 66 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 67 Error **errp) 68 { 69 S390CPU *cpu = S390_CPU(object_new(typename)); 70 S390CPU *ret = NULL; 71 72 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) { 73 goto out; 74 } 75 if (!qdev_realize(DEVICE(cpu), NULL, errp)) { 76 goto out; 77 } 78 ret = cpu; 79 80 out: 81 object_unref(OBJECT(cpu)); 82 return ret; 83 } 84 85 static void s390_init_cpus(MachineState *machine) 86 { 87 MachineClass *mc = MACHINE_GET_CLASS(machine); 88 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 89 int i; 90 91 if (machine->smp.threads > s390mc->max_threads) { 92 error_report("S390 does not support more than %d threads.", 93 s390mc->max_threads); 94 exit(1); 95 } 96 97 /* initialize possible_cpus */ 98 mc->possible_cpu_arch_ids(machine); 99 100 for (i = 0; i < machine->smp.cpus; i++) { 101 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 102 } 103 } 104 105 static const char *const reset_dev_types[] = { 106 TYPE_VIRTUAL_CSS_BRIDGE, 107 "s390-sclp-event-facility", 108 "s390-flic", 109 "diag288", 110 TYPE_S390_PCI_HOST_BRIDGE, 111 }; 112 113 static void subsystem_reset(void) 114 { 115 DeviceState *dev; 116 int i; 117 118 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 119 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 120 if (dev) { 121 qdev_reset_all(dev); 122 } 123 } 124 } 125 126 static int virtio_ccw_hcall_notify(const uint64_t *args) 127 { 128 uint64_t subch_id = args[0]; 129 uint64_t queue = args[1]; 130 SubchDev *sch; 131 int cssid, ssid, schid, m; 132 133 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 134 return -EINVAL; 135 } 136 sch = css_find_subch(m, cssid, ssid, schid); 137 if (!sch || !css_subch_visible(sch)) { 138 return -EINVAL; 139 } 140 if (queue >= VIRTIO_QUEUE_MAX) { 141 return -EINVAL; 142 } 143 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 144 return 0; 145 146 } 147 148 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 149 { 150 uint64_t mem = args[0]; 151 MachineState *ms = MACHINE(qdev_get_machine()); 152 153 if (mem < ms->ram_size) { 154 /* Early printk */ 155 return 0; 156 } 157 return -EINVAL; 158 } 159 160 static void virtio_ccw_register_hcalls(void) 161 { 162 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 163 virtio_ccw_hcall_notify); 164 /* Tolerate early printk. */ 165 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 166 virtio_ccw_hcall_early_printk); 167 } 168 169 static void s390_memory_init(MemoryRegion *ram) 170 { 171 MemoryRegion *sysmem = get_system_memory(); 172 173 /* allocate RAM for core */ 174 memory_region_add_subregion(sysmem, 0, ram); 175 176 /* 177 * Configure the maximum page size. As no memory devices were created 178 * yet, this is the page size of initial memory only. 179 */ 180 s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal); 181 /* Initialize storage key device */ 182 s390_skeys_init(); 183 /* Initialize storage attributes device */ 184 s390_stattrib_init(); 185 } 186 187 static void s390_init_ipl_dev(const char *kernel_filename, 188 const char *kernel_cmdline, 189 const char *initrd_filename, const char *firmware, 190 const char *netboot_fw, bool enforce_bios) 191 { 192 Object *new = object_new(TYPE_S390_IPL); 193 DeviceState *dev = DEVICE(new); 194 char *netboot_fw_prop; 195 196 if (kernel_filename) { 197 qdev_prop_set_string(dev, "kernel", kernel_filename); 198 } 199 if (initrd_filename) { 200 qdev_prop_set_string(dev, "initrd", initrd_filename); 201 } 202 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 203 qdev_prop_set_string(dev, "firmware", firmware); 204 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 205 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 206 if (!strlen(netboot_fw_prop)) { 207 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 208 } 209 g_free(netboot_fw_prop); 210 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 211 new); 212 object_unref(new); 213 qdev_realize(dev, NULL, &error_fatal); 214 } 215 216 static void s390_create_virtio_net(BusState *bus, const char *name) 217 { 218 int i; 219 220 for (i = 0; i < nb_nics; i++) { 221 NICInfo *nd = &nd_table[i]; 222 DeviceState *dev; 223 224 if (!nd->model) { 225 nd->model = g_strdup("virtio"); 226 } 227 228 qemu_check_nic_model(nd, "virtio"); 229 230 dev = qdev_new(name); 231 qdev_set_nic_properties(dev, nd); 232 qdev_realize_and_unref(dev, bus, &error_fatal); 233 } 234 } 235 236 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 237 { 238 DeviceState *dev; 239 240 dev = qdev_new(type); 241 qdev_prop_set_chr(dev, "chardev", chardev); 242 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 243 } 244 245 static void ccw_init(MachineState *machine) 246 { 247 int ret; 248 VirtualCssBus *css_bus; 249 DeviceState *dev; 250 251 s390_sclp_init(); 252 /* init memory + setup max page size. Required for the CPU model */ 253 s390_memory_init(machine->ram); 254 255 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 256 s390_init_cpus(machine); 257 258 /* Need CPU model to be determined before we can set up PV */ 259 s390_pv_init(machine->cgs, &error_fatal); 260 261 s390_flic_init(); 262 263 /* init the SIGP facility */ 264 s390_init_sigp(); 265 266 /* create AP bridge and bus(es) */ 267 s390_init_ap(); 268 269 /* get a BUS */ 270 css_bus = virtual_css_bus_init(); 271 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 272 machine->initrd_filename, 273 machine->firmware ?: "s390-ccw.img", 274 "s390-netboot.img", true); 275 276 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 277 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 278 OBJECT(dev)); 279 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 280 281 /* register hypercalls */ 282 virtio_ccw_register_hcalls(); 283 284 s390_enable_css_support(s390_cpu_addr2state(0)); 285 286 ret = css_create_css_image(VIRTUAL_CSSID, true); 287 288 assert(ret == 0); 289 if (css_migration_enabled()) { 290 css_register_vmstate(); 291 } 292 293 /* Create VirtIO network adapters */ 294 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 295 296 /* init consoles */ 297 if (serial_hd(0)) { 298 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 299 } 300 if (serial_hd(1)) { 301 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 302 } 303 304 /* init the TOD clock */ 305 s390_init_tod(); 306 } 307 308 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 309 DeviceState *dev, Error **errp) 310 { 311 MachineState *ms = MACHINE(hotplug_dev); 312 S390CPU *cpu = S390_CPU(dev); 313 314 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 315 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 316 317 if (dev->hotplugged) { 318 raise_irq_cpu_hotplug(); 319 } 320 } 321 322 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 323 { 324 S390CPU *cpu = S390_CPU(cs); 325 326 s390_ipl_prepare_cpu(cpu); 327 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 328 } 329 330 static void s390_machine_unprotect(S390CcwMachineState *ms) 331 { 332 s390_pv_vm_disable(); 333 ms->pv = false; 334 migrate_del_blocker(pv_mig_blocker); 335 error_free_or_abort(&pv_mig_blocker); 336 ram_block_discard_disable(false); 337 } 338 339 static int s390_machine_protect(S390CcwMachineState *ms) 340 { 341 Error *local_err = NULL; 342 int rc; 343 344 /* 345 * Discarding of memory in RAM blocks does not work as expected with 346 * protected VMs. Sharing and unsharing pages would be required. Disable 347 * it for now, until until we have a solution to make at least Linux 348 * guests either support it (e.g., virtio-balloon) or fail gracefully. 349 */ 350 rc = ram_block_discard_disable(true); 351 if (rc) { 352 error_report("protected VMs: cannot disable RAM discard"); 353 return rc; 354 } 355 356 error_setg(&pv_mig_blocker, 357 "protected VMs are currently not migratable."); 358 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 359 if (rc) { 360 ram_block_discard_disable(false); 361 error_report_err(local_err); 362 error_free_or_abort(&pv_mig_blocker); 363 return rc; 364 } 365 366 /* Create SE VM */ 367 rc = s390_pv_vm_enable(); 368 if (rc) { 369 ram_block_discard_disable(false); 370 migrate_del_blocker(pv_mig_blocker); 371 error_free_or_abort(&pv_mig_blocker); 372 return rc; 373 } 374 375 ms->pv = true; 376 377 /* Will return 0 if API is not available since it's not vital */ 378 rc = s390_pv_query_info(); 379 if (rc) { 380 goto out_err; 381 } 382 383 /* Set SE header and unpack */ 384 rc = s390_ipl_prepare_pv_header(); 385 if (rc) { 386 goto out_err; 387 } 388 389 /* Decrypt image */ 390 rc = s390_ipl_pv_unpack(); 391 if (rc) { 392 goto out_err; 393 } 394 395 /* Verify integrity */ 396 rc = s390_pv_verify(); 397 if (rc) { 398 goto out_err; 399 } 400 return rc; 401 402 out_err: 403 s390_machine_unprotect(ms); 404 return rc; 405 } 406 407 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 408 { 409 CPUState *cs; 410 411 if (!s390_is_pv()) { 412 return; 413 } 414 /* Unsharing requires all cpus to be stopped */ 415 CPU_FOREACH(cs) { 416 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 417 } 418 s390_pv_unshare(); 419 s390_pv_prep_reset(); 420 } 421 422 static void s390_machine_reset(MachineState *machine, ShutdownCause reason) 423 { 424 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 425 enum s390_reset reset_type; 426 CPUState *cs, *t; 427 S390CPU *cpu; 428 429 /* get the reset parameters, reset them once done */ 430 s390_ipl_get_reset_request(&cs, &reset_type); 431 432 /* all CPUs are paused and synchronized at this point */ 433 s390_cmma_reset(); 434 435 cpu = S390_CPU(cs); 436 437 switch (reset_type) { 438 case S390_RESET_EXTERNAL: 439 case S390_RESET_REIPL: 440 if (s390_is_pv()) { 441 s390_machine_unprotect(ms); 442 } 443 444 qemu_devices_reset(reason); 445 s390_crypto_reset(); 446 447 /* configure and start the ipl CPU only */ 448 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 449 break; 450 case S390_RESET_MODIFIED_CLEAR: 451 /* 452 * Subsystem reset needs to be done before we unshare memory 453 * and lose access to VIRTIO structures in guest memory. 454 */ 455 subsystem_reset(); 456 s390_crypto_reset(); 457 s390_pv_prepare_reset(ms); 458 CPU_FOREACH(t) { 459 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 460 } 461 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 462 break; 463 case S390_RESET_LOAD_NORMAL: 464 /* 465 * Subsystem reset needs to be done before we unshare memory 466 * and lose access to VIRTIO structures in guest memory. 467 */ 468 subsystem_reset(); 469 s390_pv_prepare_reset(ms); 470 CPU_FOREACH(t) { 471 if (t == cs) { 472 continue; 473 } 474 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 475 } 476 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 477 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 478 break; 479 case S390_RESET_PV: /* Subcode 10 */ 480 subsystem_reset(); 481 s390_crypto_reset(); 482 483 CPU_FOREACH(t) { 484 if (t == cs) { 485 continue; 486 } 487 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 488 } 489 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 490 491 if (s390_machine_protect(ms)) { 492 s390_pv_inject_reset_error(cs); 493 /* 494 * Continue after the diag308 so the guest knows something 495 * went wrong. 496 */ 497 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 498 return; 499 } 500 501 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 502 break; 503 default: 504 g_assert_not_reached(); 505 } 506 507 CPU_FOREACH(t) { 508 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 509 } 510 s390_ipl_clear_reset_request(); 511 } 512 513 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 514 DeviceState *dev, Error **errp) 515 { 516 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 517 s390_cpu_plug(hotplug_dev, dev, errp); 518 } 519 } 520 521 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 522 DeviceState *dev, Error **errp) 523 { 524 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 525 error_setg(errp, "CPU hot unplug not supported on this machine"); 526 return; 527 } 528 } 529 530 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 531 unsigned cpu_index) 532 { 533 MachineClass *mc = MACHINE_GET_CLASS(ms); 534 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 535 536 assert(cpu_index < possible_cpus->len); 537 return possible_cpus->cpus[cpu_index].props; 538 } 539 540 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 541 { 542 int i; 543 unsigned int max_cpus = ms->smp.max_cpus; 544 545 if (ms->possible_cpus) { 546 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 547 return ms->possible_cpus; 548 } 549 550 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 551 sizeof(CPUArchId) * max_cpus); 552 ms->possible_cpus->len = max_cpus; 553 for (i = 0; i < ms->possible_cpus->len; i++) { 554 ms->possible_cpus->cpus[i].type = ms->cpu_type; 555 ms->possible_cpus->cpus[i].vcpus_count = 1; 556 ms->possible_cpus->cpus[i].arch_id = i; 557 ms->possible_cpus->cpus[i].props.has_core_id = true; 558 ms->possible_cpus->cpus[i].props.core_id = i; 559 } 560 561 return ms->possible_cpus; 562 } 563 564 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 565 DeviceState *dev) 566 { 567 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 568 return HOTPLUG_HANDLER(machine); 569 } 570 return NULL; 571 } 572 573 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 574 { 575 CPUState *cs = qemu_get_cpu(cpu_index); 576 577 s390_cpu_restart(S390_CPU(cs)); 578 } 579 580 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 581 { 582 /* same logic as in sclp.c */ 583 int increment_size = 20; 584 ram_addr_t newsz; 585 586 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 587 increment_size++; 588 } 589 newsz = sz >> increment_size << increment_size; 590 591 if (sz != newsz) { 592 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 593 "MB to match machine restrictions. Consider updating " 594 "the guest definition.\n", (uint64_t) (sz / MiB), 595 (uint64_t) (newsz / MiB)); 596 } 597 return newsz; 598 } 599 600 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 601 { 602 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 603 604 return ms->aes_key_wrap; 605 } 606 607 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 608 Error **errp) 609 { 610 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 611 612 ms->aes_key_wrap = value; 613 } 614 615 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 616 { 617 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 618 619 return ms->dea_key_wrap; 620 } 621 622 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 623 Error **errp) 624 { 625 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 626 627 ms->dea_key_wrap = value; 628 } 629 630 static S390CcwMachineClass *current_mc; 631 632 /* 633 * Get the class of the s390-ccw-virtio machine that is currently in use. 634 * Note: libvirt is using the "none" machine to probe for the features of the 635 * host CPU, so in case this is called with the "none" machine, the function 636 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 637 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 638 * below return the correct default value for the "none" machine. 639 * 640 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 641 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 642 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 643 * CPU initialization and s390_has_feat() later should be sufficient. 644 */ 645 static S390CcwMachineClass *get_machine_class(void) 646 { 647 if (unlikely(!current_mc)) { 648 /* 649 * No s390 ccw machine was instantiated, we are likely to 650 * be called for the 'none' machine. The properties will 651 * have their after-initialization values. 652 */ 653 current_mc = S390_CCW_MACHINE_CLASS( 654 object_class_by_name(TYPE_S390_CCW_MACHINE)); 655 } 656 return current_mc; 657 } 658 659 bool ri_allowed(void) 660 { 661 return get_machine_class()->ri_allowed; 662 } 663 664 bool cpu_model_allowed(void) 665 { 666 return get_machine_class()->cpu_model_allowed; 667 } 668 669 bool hpage_1m_allowed(void) 670 { 671 return get_machine_class()->hpage_1m_allowed; 672 } 673 674 static void machine_get_loadparm(Object *obj, Visitor *v, 675 const char *name, void *opaque, 676 Error **errp) 677 { 678 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 679 char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 680 681 visit_type_str(v, name, &str, errp); 682 g_free(str); 683 } 684 685 static void machine_set_loadparm(Object *obj, Visitor *v, 686 const char *name, void *opaque, 687 Error **errp) 688 { 689 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 690 char *val; 691 int i; 692 693 if (!visit_type_str(v, name, &val, errp)) { 694 return; 695 } 696 697 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 698 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 699 700 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 701 (c == ' ')) { 702 ms->loadparm[i] = c; 703 } else { 704 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 705 c, c); 706 return; 707 } 708 } 709 710 for (; i < sizeof(ms->loadparm); i++) { 711 ms->loadparm[i] = ' '; /* pad right with spaces */ 712 } 713 } 714 715 static void ccw_machine_class_init(ObjectClass *oc, void *data) 716 { 717 MachineClass *mc = MACHINE_CLASS(oc); 718 NMIClass *nc = NMI_CLASS(oc); 719 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 720 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 721 722 s390mc->ri_allowed = true; 723 s390mc->cpu_model_allowed = true; 724 s390mc->css_migration_enabled = true; 725 s390mc->hpage_1m_allowed = true; 726 s390mc->max_threads = 1; 727 mc->init = ccw_init; 728 mc->reset = s390_machine_reset; 729 mc->block_default_type = IF_VIRTIO; 730 mc->no_cdrom = 1; 731 mc->no_floppy = 1; 732 mc->no_parallel = 1; 733 mc->no_sdcard = 1; 734 mc->max_cpus = S390_MAX_CPUS; 735 mc->has_hotpluggable_cpus = true; 736 assert(!mc->get_hotplug_handler); 737 mc->get_hotplug_handler = s390_get_hotplug_handler; 738 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 739 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 740 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 741 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 742 hc->plug = s390_machine_device_plug; 743 hc->unplug_request = s390_machine_device_unplug_request; 744 nc->nmi_monitor_handler = s390_nmi; 745 mc->default_ram_id = "s390.ram"; 746 747 object_class_property_add_bool(oc, "aes-key-wrap", 748 machine_get_aes_key_wrap, 749 machine_set_aes_key_wrap); 750 object_class_property_set_description(oc, "aes-key-wrap", 751 "enable/disable AES key wrapping using the CPACF wrapping key"); 752 753 object_class_property_add_bool(oc, "dea-key-wrap", 754 machine_get_dea_key_wrap, 755 machine_set_dea_key_wrap); 756 object_class_property_set_description(oc, "dea-key-wrap", 757 "enable/disable DEA key wrapping using the CPACF wrapping key"); 758 759 object_class_property_add(oc, "loadparm", "loadparm", 760 machine_get_loadparm, machine_set_loadparm, 761 NULL, NULL); 762 object_class_property_set_description(oc, "loadparm", 763 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 764 " to upper case) to pass to machine loader, boot manager," 765 " and guest kernel"); 766 } 767 768 static inline void s390_machine_initfn(Object *obj) 769 { 770 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 771 772 ms->aes_key_wrap = true; 773 ms->dea_key_wrap = true; 774 } 775 776 static const TypeInfo ccw_machine_info = { 777 .name = TYPE_S390_CCW_MACHINE, 778 .parent = TYPE_MACHINE, 779 .abstract = true, 780 .instance_size = sizeof(S390CcwMachineState), 781 .instance_init = s390_machine_initfn, 782 .class_size = sizeof(S390CcwMachineClass), 783 .class_init = ccw_machine_class_init, 784 .interfaces = (InterfaceInfo[]) { 785 { TYPE_NMI }, 786 { TYPE_HOTPLUG_HANDLER}, 787 { } 788 }, 789 }; 790 791 bool css_migration_enabled(void) 792 { 793 return get_machine_class()->css_migration_enabled; 794 } 795 796 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 797 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 798 void *data) \ 799 { \ 800 MachineClass *mc = MACHINE_CLASS(oc); \ 801 ccw_machine_##suffix##_class_options(mc); \ 802 mc->desc = "Virtual s390x machine (version " verstr ")"; \ 803 if (latest) { \ 804 mc->alias = "s390-ccw-virtio"; \ 805 mc->is_default = true; \ 806 } \ 807 } \ 808 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 809 { \ 810 MachineState *machine = MACHINE(obj); \ 811 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 812 ccw_machine_##suffix##_instance_options(machine); \ 813 } \ 814 static const TypeInfo ccw_machine_##suffix##_info = { \ 815 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 816 .parent = TYPE_S390_CCW_MACHINE, \ 817 .class_init = ccw_machine_##suffix##_class_init, \ 818 .instance_init = ccw_machine_##suffix##_instance_init, \ 819 }; \ 820 static void ccw_machine_register_##suffix(void) \ 821 { \ 822 type_register_static(&ccw_machine_##suffix##_info); \ 823 } \ 824 type_init(ccw_machine_register_##suffix) 825 826 static void ccw_machine_7_2_instance_options(MachineState *machine) 827 { 828 } 829 830 static void ccw_machine_7_2_class_options(MachineClass *mc) 831 { 832 } 833 DEFINE_CCW_MACHINE(7_2, "7.2", true); 834 835 static void ccw_machine_7_1_instance_options(MachineState *machine) 836 { 837 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 }; 838 839 ccw_machine_7_2_instance_options(machine); 840 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE); 841 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 842 } 843 844 static void ccw_machine_7_1_class_options(MachineClass *mc) 845 { 846 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 847 static GlobalProperty compat[] = { 848 { TYPE_S390_PCI_DEVICE, "interpret", "off", }, 849 { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", }, 850 }; 851 852 ccw_machine_7_2_class_options(mc); 853 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 854 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 855 s390mc->max_threads = S390_MAX_CPUS; 856 } 857 DEFINE_CCW_MACHINE(7_1, "7.1", false); 858 859 static void ccw_machine_7_0_instance_options(MachineState *machine) 860 { 861 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 }; 862 863 ccw_machine_7_1_instance_options(machine); 864 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 865 } 866 867 static void ccw_machine_7_0_class_options(MachineClass *mc) 868 { 869 ccw_machine_7_1_class_options(mc); 870 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 871 } 872 DEFINE_CCW_MACHINE(7_0, "7.0", false); 873 874 static void ccw_machine_6_2_instance_options(MachineState *machine) 875 { 876 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 }; 877 878 ccw_machine_7_0_instance_options(machine); 879 s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat); 880 } 881 882 static void ccw_machine_6_2_class_options(MachineClass *mc) 883 { 884 ccw_machine_7_0_class_options(mc); 885 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 886 } 887 DEFINE_CCW_MACHINE(6_2, "6.2", false); 888 889 static void ccw_machine_6_1_instance_options(MachineState *machine) 890 { 891 ccw_machine_6_2_instance_options(machine); 892 s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA); 893 s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2); 894 s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH); 895 s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP); 896 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI); 897 } 898 899 static void ccw_machine_6_1_class_options(MachineClass *mc) 900 { 901 ccw_machine_6_2_class_options(mc); 902 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 903 mc->smp_props.prefer_sockets = true; 904 } 905 DEFINE_CCW_MACHINE(6_1, "6.1", false); 906 907 static void ccw_machine_6_0_instance_options(MachineState *machine) 908 { 909 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 }; 910 911 ccw_machine_6_1_instance_options(machine); 912 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 913 } 914 915 static void ccw_machine_6_0_class_options(MachineClass *mc) 916 { 917 ccw_machine_6_1_class_options(mc); 918 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 919 } 920 DEFINE_CCW_MACHINE(6_0, "6.0", false); 921 922 static void ccw_machine_5_2_instance_options(MachineState *machine) 923 { 924 ccw_machine_6_0_instance_options(machine); 925 } 926 927 static void ccw_machine_5_2_class_options(MachineClass *mc) 928 { 929 ccw_machine_6_0_class_options(mc); 930 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 931 } 932 DEFINE_CCW_MACHINE(5_2, "5.2", false); 933 934 static void ccw_machine_5_1_instance_options(MachineState *machine) 935 { 936 ccw_machine_5_2_instance_options(machine); 937 } 938 939 static void ccw_machine_5_1_class_options(MachineClass *mc) 940 { 941 ccw_machine_5_2_class_options(mc); 942 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 943 } 944 DEFINE_CCW_MACHINE(5_1, "5.1", false); 945 946 static void ccw_machine_5_0_instance_options(MachineState *machine) 947 { 948 ccw_machine_5_1_instance_options(machine); 949 } 950 951 static void ccw_machine_5_0_class_options(MachineClass *mc) 952 { 953 ccw_machine_5_1_class_options(mc); 954 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 955 } 956 DEFINE_CCW_MACHINE(5_0, "5.0", false); 957 958 static void ccw_machine_4_2_instance_options(MachineState *machine) 959 { 960 ccw_machine_5_0_instance_options(machine); 961 } 962 963 static void ccw_machine_4_2_class_options(MachineClass *mc) 964 { 965 ccw_machine_5_0_class_options(mc); 966 mc->fixup_ram_size = s390_fixup_ram_size; 967 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 968 } 969 DEFINE_CCW_MACHINE(4_2, "4.2", false); 970 971 static void ccw_machine_4_1_instance_options(MachineState *machine) 972 { 973 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 974 ccw_machine_4_2_instance_options(machine); 975 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 976 } 977 978 static void ccw_machine_4_1_class_options(MachineClass *mc) 979 { 980 ccw_machine_4_2_class_options(mc); 981 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 982 } 983 DEFINE_CCW_MACHINE(4_1, "4.1", false); 984 985 static void ccw_machine_4_0_instance_options(MachineState *machine) 986 { 987 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 988 ccw_machine_4_1_instance_options(machine); 989 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 990 } 991 992 static void ccw_machine_4_0_class_options(MachineClass *mc) 993 { 994 ccw_machine_4_1_class_options(mc); 995 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 996 } 997 DEFINE_CCW_MACHINE(4_0, "4.0", false); 998 999 static void ccw_machine_3_1_instance_options(MachineState *machine) 1000 { 1001 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 1002 ccw_machine_4_0_instance_options(machine); 1003 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 1004 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 1005 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1006 } 1007 1008 static void ccw_machine_3_1_class_options(MachineClass *mc) 1009 { 1010 ccw_machine_4_0_class_options(mc); 1011 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 1012 } 1013 DEFINE_CCW_MACHINE(3_1, "3.1", false); 1014 1015 static void ccw_machine_3_0_instance_options(MachineState *machine) 1016 { 1017 ccw_machine_3_1_instance_options(machine); 1018 } 1019 1020 static void ccw_machine_3_0_class_options(MachineClass *mc) 1021 { 1022 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1023 1024 s390mc->hpage_1m_allowed = false; 1025 ccw_machine_3_1_class_options(mc); 1026 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 1027 } 1028 DEFINE_CCW_MACHINE(3_0, "3.0", false); 1029 1030 static void ccw_machine_2_12_instance_options(MachineState *machine) 1031 { 1032 ccw_machine_3_0_instance_options(machine); 1033 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 1034 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 1035 } 1036 1037 static void ccw_machine_2_12_class_options(MachineClass *mc) 1038 { 1039 ccw_machine_3_0_class_options(mc); 1040 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 1041 } 1042 DEFINE_CCW_MACHINE(2_12, "2.12", false); 1043 1044 static void ccw_machine_2_11_instance_options(MachineState *machine) 1045 { 1046 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 1047 ccw_machine_2_12_instance_options(machine); 1048 1049 /* before 2.12 we emulated the very first z900 */ 1050 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 1051 } 1052 1053 static void ccw_machine_2_11_class_options(MachineClass *mc) 1054 { 1055 static GlobalProperty compat[] = { 1056 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 1057 }; 1058 1059 ccw_machine_2_12_class_options(mc); 1060 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 1061 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1062 } 1063 DEFINE_CCW_MACHINE(2_11, "2.11", false); 1064 1065 static void ccw_machine_2_10_instance_options(MachineState *machine) 1066 { 1067 ccw_machine_2_11_instance_options(machine); 1068 } 1069 1070 static void ccw_machine_2_10_class_options(MachineClass *mc) 1071 { 1072 ccw_machine_2_11_class_options(mc); 1073 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 1074 } 1075 DEFINE_CCW_MACHINE(2_10, "2.10", false); 1076 1077 static void ccw_machine_2_9_instance_options(MachineState *machine) 1078 { 1079 ccw_machine_2_10_instance_options(machine); 1080 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 1081 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 1082 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 1083 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 1084 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 1085 } 1086 1087 static void ccw_machine_2_9_class_options(MachineClass *mc) 1088 { 1089 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1090 static GlobalProperty compat[] = { 1091 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 1092 }; 1093 1094 ccw_machine_2_10_class_options(mc); 1095 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 1096 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1097 s390mc->css_migration_enabled = false; 1098 } 1099 DEFINE_CCW_MACHINE(2_9, "2.9", false); 1100 1101 static void ccw_machine_2_8_instance_options(MachineState *machine) 1102 { 1103 ccw_machine_2_9_instance_options(machine); 1104 } 1105 1106 static void ccw_machine_2_8_class_options(MachineClass *mc) 1107 { 1108 static GlobalProperty compat[] = { 1109 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 1110 }; 1111 1112 ccw_machine_2_9_class_options(mc); 1113 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 1114 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1115 } 1116 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1117 1118 static void ccw_machine_2_7_instance_options(MachineState *machine) 1119 { 1120 ccw_machine_2_8_instance_options(machine); 1121 } 1122 1123 static void ccw_machine_2_7_class_options(MachineClass *mc) 1124 { 1125 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1126 1127 s390mc->cpu_model_allowed = false; 1128 ccw_machine_2_8_class_options(mc); 1129 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1130 } 1131 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1132 1133 static void ccw_machine_2_6_instance_options(MachineState *machine) 1134 { 1135 ccw_machine_2_7_instance_options(machine); 1136 } 1137 1138 static void ccw_machine_2_6_class_options(MachineClass *mc) 1139 { 1140 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1141 static GlobalProperty compat[] = { 1142 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1143 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1144 }; 1145 1146 s390mc->ri_allowed = false; 1147 ccw_machine_2_7_class_options(mc); 1148 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1149 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1150 } 1151 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1152 1153 static void ccw_machine_2_5_instance_options(MachineState *machine) 1154 { 1155 ccw_machine_2_6_instance_options(machine); 1156 } 1157 1158 static void ccw_machine_2_5_class_options(MachineClass *mc) 1159 { 1160 ccw_machine_2_6_class_options(mc); 1161 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1162 } 1163 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1164 1165 static void ccw_machine_2_4_instance_options(MachineState *machine) 1166 { 1167 ccw_machine_2_5_instance_options(machine); 1168 } 1169 1170 static void ccw_machine_2_4_class_options(MachineClass *mc) 1171 { 1172 static GlobalProperty compat[] = { 1173 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1174 { "virtio-blk-ccw", "max_revision", "0", }, 1175 { "virtio-balloon-ccw", "max_revision", "0", }, 1176 { "virtio-serial-ccw", "max_revision", "0", }, 1177 { "virtio-9p-ccw", "max_revision", "0", }, 1178 { "virtio-rng-ccw", "max_revision", "0", }, 1179 { "virtio-net-ccw", "max_revision", "0", }, 1180 { "virtio-scsi-ccw", "max_revision", "0", }, 1181 { "vhost-scsi-ccw", "max_revision", "0", }, 1182 }; 1183 1184 ccw_machine_2_5_class_options(mc); 1185 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1186 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1187 } 1188 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1189 1190 static void ccw_machine_register_types(void) 1191 { 1192 type_register_static(&ccw_machine_info); 1193 } 1194 1195 type_init(ccw_machine_register_types)