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 "sysemu/cpus.h" 45 #include "hw/s390x/pv.h" 46 #include "migration/blocker.h" 47 #include "qapi/visitor.h" 48 49 static Error *pv_mig_blocker; 50 51 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 52 { 53 static MachineState *ms; 54 55 if (!ms) { 56 ms = MACHINE(qdev_get_machine()); 57 g_assert(ms->possible_cpus); 58 } 59 60 /* CPU address corresponds to the core_id and the index */ 61 if (cpu_addr >= ms->possible_cpus->len) { 62 return NULL; 63 } 64 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 65 } 66 67 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 68 Error **errp) 69 { 70 S390CPU *cpu = S390_CPU(object_new(typename)); 71 S390CPU *ret = NULL; 72 73 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) { 74 goto out; 75 } 76 if (!qdev_realize(DEVICE(cpu), NULL, errp)) { 77 goto out; 78 } 79 ret = cpu; 80 81 out: 82 object_unref(OBJECT(cpu)); 83 return ret; 84 } 85 86 static void s390_init_cpus(MachineState *machine) 87 { 88 MachineClass *mc = MACHINE_GET_CLASS(machine); 89 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 90 int i; 91 92 if (machine->smp.threads > s390mc->max_threads) { 93 error_report("S390 does not support more than %d threads.", 94 s390mc->max_threads); 95 exit(1); 96 } 97 98 /* initialize possible_cpus */ 99 mc->possible_cpu_arch_ids(machine); 100 101 for (i = 0; i < machine->smp.cpus; i++) { 102 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 103 } 104 } 105 106 static const char *const reset_dev_types[] = { 107 TYPE_VIRTUAL_CSS_BRIDGE, 108 "s390-sclp-event-facility", 109 "s390-flic", 110 "diag288", 111 TYPE_S390_PCI_HOST_BRIDGE, 112 }; 113 114 static void subsystem_reset(void) 115 { 116 DeviceState *dev; 117 int i; 118 119 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 120 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 121 if (dev) { 122 device_cold_reset(dev); 123 } 124 } 125 } 126 127 static int virtio_ccw_hcall_notify(const uint64_t *args) 128 { 129 uint64_t subch_id = args[0]; 130 uint64_t queue = args[1]; 131 SubchDev *sch; 132 int cssid, ssid, schid, m; 133 134 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 135 return -EINVAL; 136 } 137 sch = css_find_subch(m, cssid, ssid, schid); 138 if (!sch || !css_subch_visible(sch)) { 139 return -EINVAL; 140 } 141 if (queue >= VIRTIO_QUEUE_MAX) { 142 return -EINVAL; 143 } 144 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 145 return 0; 146 147 } 148 149 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 150 { 151 uint64_t mem = args[0]; 152 MachineState *ms = MACHINE(qdev_get_machine()); 153 154 if (mem < ms->ram_size) { 155 /* Early printk */ 156 return 0; 157 } 158 return -EINVAL; 159 } 160 161 static void virtio_ccw_register_hcalls(void) 162 { 163 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 164 virtio_ccw_hcall_notify); 165 /* Tolerate early printk. */ 166 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 167 virtio_ccw_hcall_early_printk); 168 } 169 170 static void s390_memory_init(MemoryRegion *ram) 171 { 172 MemoryRegion *sysmem = get_system_memory(); 173 174 /* allocate RAM for core */ 175 memory_region_add_subregion(sysmem, 0, ram); 176 177 /* 178 * Configure the maximum page size. As no memory devices were created 179 * yet, this is the page size of initial memory only. 180 */ 181 s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal); 182 /* Initialize storage key device */ 183 s390_skeys_init(); 184 /* Initialize storage attributes device */ 185 s390_stattrib_init(); 186 } 187 188 static void s390_init_ipl_dev(const char *kernel_filename, 189 const char *kernel_cmdline, 190 const char *initrd_filename, const char *firmware, 191 const char *netboot_fw, bool enforce_bios) 192 { 193 Object *new = object_new(TYPE_S390_IPL); 194 DeviceState *dev = DEVICE(new); 195 char *netboot_fw_prop; 196 197 if (kernel_filename) { 198 qdev_prop_set_string(dev, "kernel", kernel_filename); 199 } 200 if (initrd_filename) { 201 qdev_prop_set_string(dev, "initrd", initrd_filename); 202 } 203 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 204 qdev_prop_set_string(dev, "firmware", firmware); 205 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 206 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 207 if (!strlen(netboot_fw_prop)) { 208 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 209 } 210 g_free(netboot_fw_prop); 211 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 212 new); 213 object_unref(new); 214 qdev_realize(dev, NULL, &error_fatal); 215 } 216 217 static void s390_create_virtio_net(BusState *bus, const char *name) 218 { 219 int i; 220 221 for (i = 0; i < nb_nics; i++) { 222 NICInfo *nd = &nd_table[i]; 223 DeviceState *dev; 224 225 if (!nd->model) { 226 nd->model = g_strdup("virtio"); 227 } 228 229 qemu_check_nic_model(nd, "virtio"); 230 231 dev = qdev_new(name); 232 qdev_set_nic_properties(dev, nd); 233 qdev_realize_and_unref(dev, bus, &error_fatal); 234 } 235 } 236 237 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 238 { 239 DeviceState *dev; 240 241 dev = qdev_new(type); 242 qdev_prop_set_chr(dev, "chardev", chardev); 243 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 244 } 245 246 static void ccw_init(MachineState *machine) 247 { 248 int ret; 249 VirtualCssBus *css_bus; 250 DeviceState *dev; 251 252 s390_sclp_init(); 253 /* init memory + setup max page size. Required for the CPU model */ 254 s390_memory_init(machine->ram); 255 256 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 257 s390_init_cpus(machine); 258 259 /* Need CPU model to be determined before we can set up PV */ 260 s390_pv_init(machine->cgs, &error_fatal); 261 262 s390_flic_init(); 263 264 /* init the SIGP facility */ 265 s390_init_sigp(); 266 267 /* create AP bridge and bus(es) */ 268 s390_init_ap(); 269 270 /* get a BUS */ 271 css_bus = virtual_css_bus_init(); 272 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 273 machine->initrd_filename, 274 machine->firmware ?: "s390-ccw.img", 275 "s390-netboot.img", true); 276 277 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 278 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 279 OBJECT(dev)); 280 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 281 282 /* register hypercalls */ 283 virtio_ccw_register_hcalls(); 284 285 s390_enable_css_support(s390_cpu_addr2state(0)); 286 287 ret = css_create_css_image(VIRTUAL_CSSID, true); 288 289 assert(ret == 0); 290 if (css_migration_enabled()) { 291 css_register_vmstate(); 292 } 293 294 /* Create VirtIO network adapters */ 295 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 296 297 /* init consoles */ 298 if (serial_hd(0)) { 299 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 300 } 301 if (serial_hd(1)) { 302 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 303 } 304 305 /* init the TOD clock */ 306 s390_init_tod(); 307 } 308 309 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 310 DeviceState *dev, Error **errp) 311 { 312 MachineState *ms = MACHINE(hotplug_dev); 313 S390CPU *cpu = S390_CPU(dev); 314 315 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 316 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 317 318 if (dev->hotplugged) { 319 raise_irq_cpu_hotplug(); 320 } 321 } 322 323 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 324 { 325 S390CPU *cpu = S390_CPU(cs); 326 327 s390_ipl_prepare_cpu(cpu); 328 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 329 } 330 331 static void s390_machine_unprotect(S390CcwMachineState *ms) 332 { 333 if (!s390_pv_vm_try_disable_async()) { 334 s390_pv_vm_disable(); 335 } 336 ms->pv = false; 337 migrate_del_blocker(pv_mig_blocker); 338 error_free_or_abort(&pv_mig_blocker); 339 ram_block_discard_disable(false); 340 } 341 342 static int s390_machine_protect(S390CcwMachineState *ms) 343 { 344 Error *local_err = NULL; 345 int rc; 346 347 /* 348 * Discarding of memory in RAM blocks does not work as expected with 349 * protected VMs. Sharing and unsharing pages would be required. Disable 350 * it for now, until until we have a solution to make at least Linux 351 * guests either support it (e.g., virtio-balloon) or fail gracefully. 352 */ 353 rc = ram_block_discard_disable(true); 354 if (rc) { 355 error_report("protected VMs: cannot disable RAM discard"); 356 return rc; 357 } 358 359 error_setg(&pv_mig_blocker, 360 "protected VMs are currently not migratable."); 361 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 362 if (rc) { 363 ram_block_discard_disable(false); 364 error_report_err(local_err); 365 error_free_or_abort(&pv_mig_blocker); 366 return rc; 367 } 368 369 /* Create SE VM */ 370 rc = s390_pv_vm_enable(); 371 if (rc) { 372 ram_block_discard_disable(false); 373 migrate_del_blocker(pv_mig_blocker); 374 error_free_or_abort(&pv_mig_blocker); 375 return rc; 376 } 377 378 ms->pv = true; 379 380 /* Will return 0 if API is not available since it's not vital */ 381 rc = s390_pv_query_info(); 382 if (rc) { 383 goto out_err; 384 } 385 386 /* Set SE header and unpack */ 387 rc = s390_ipl_prepare_pv_header(); 388 if (rc) { 389 goto out_err; 390 } 391 392 /* Decrypt image */ 393 rc = s390_ipl_pv_unpack(); 394 if (rc) { 395 goto out_err; 396 } 397 398 /* Verify integrity */ 399 rc = s390_pv_verify(); 400 if (rc) { 401 goto out_err; 402 } 403 return rc; 404 405 out_err: 406 s390_machine_unprotect(ms); 407 return rc; 408 } 409 410 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 411 { 412 CPUState *cs; 413 414 if (!s390_is_pv()) { 415 return; 416 } 417 /* Unsharing requires all cpus to be stopped */ 418 CPU_FOREACH(cs) { 419 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 420 } 421 s390_pv_unshare(); 422 s390_pv_prep_reset(); 423 } 424 425 static void s390_machine_reset(MachineState *machine, ShutdownCause reason) 426 { 427 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 428 enum s390_reset reset_type; 429 CPUState *cs, *t; 430 S390CPU *cpu; 431 432 /* get the reset parameters, reset them once done */ 433 s390_ipl_get_reset_request(&cs, &reset_type); 434 435 /* all CPUs are paused and synchronized at this point */ 436 s390_cmma_reset(); 437 438 cpu = S390_CPU(cs); 439 440 switch (reset_type) { 441 case S390_RESET_EXTERNAL: 442 case S390_RESET_REIPL: 443 if (s390_is_pv()) { 444 s390_machine_unprotect(ms); 445 } 446 447 qemu_devices_reset(reason); 448 s390_crypto_reset(); 449 450 /* configure and start the ipl CPU only */ 451 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 452 break; 453 case S390_RESET_MODIFIED_CLEAR: 454 /* 455 * Subsystem reset needs to be done before we unshare memory 456 * and lose access to VIRTIO structures in guest memory. 457 */ 458 subsystem_reset(); 459 s390_crypto_reset(); 460 s390_pv_prepare_reset(ms); 461 CPU_FOREACH(t) { 462 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 463 } 464 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 465 break; 466 case S390_RESET_LOAD_NORMAL: 467 /* 468 * Subsystem reset needs to be done before we unshare memory 469 * and lose access to VIRTIO structures in guest memory. 470 */ 471 subsystem_reset(); 472 s390_pv_prepare_reset(ms); 473 CPU_FOREACH(t) { 474 if (t == cs) { 475 continue; 476 } 477 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 478 } 479 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 480 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 481 break; 482 case S390_RESET_PV: /* Subcode 10 */ 483 subsystem_reset(); 484 s390_crypto_reset(); 485 486 CPU_FOREACH(t) { 487 if (t == cs) { 488 continue; 489 } 490 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 491 } 492 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 493 494 if (s390_machine_protect(ms)) { 495 s390_pv_inject_reset_error(cs); 496 /* 497 * Continue after the diag308 so the guest knows something 498 * went wrong. 499 */ 500 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 501 return; 502 } 503 504 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 505 break; 506 default: 507 g_assert_not_reached(); 508 } 509 510 CPU_FOREACH(t) { 511 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 512 } 513 s390_ipl_clear_reset_request(); 514 } 515 516 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 517 DeviceState *dev, Error **errp) 518 { 519 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 520 s390_cpu_plug(hotplug_dev, dev, errp); 521 } 522 } 523 524 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 525 DeviceState *dev, Error **errp) 526 { 527 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 528 error_setg(errp, "CPU hot unplug not supported on this machine"); 529 return; 530 } 531 } 532 533 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 534 unsigned cpu_index) 535 { 536 MachineClass *mc = MACHINE_GET_CLASS(ms); 537 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 538 539 assert(cpu_index < possible_cpus->len); 540 return possible_cpus->cpus[cpu_index].props; 541 } 542 543 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 544 { 545 int i; 546 unsigned int max_cpus = ms->smp.max_cpus; 547 548 if (ms->possible_cpus) { 549 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 550 return ms->possible_cpus; 551 } 552 553 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 554 sizeof(CPUArchId) * max_cpus); 555 ms->possible_cpus->len = max_cpus; 556 for (i = 0; i < ms->possible_cpus->len; i++) { 557 ms->possible_cpus->cpus[i].type = ms->cpu_type; 558 ms->possible_cpus->cpus[i].vcpus_count = 1; 559 ms->possible_cpus->cpus[i].arch_id = i; 560 ms->possible_cpus->cpus[i].props.has_core_id = true; 561 ms->possible_cpus->cpus[i].props.core_id = i; 562 } 563 564 return ms->possible_cpus; 565 } 566 567 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 568 DeviceState *dev) 569 { 570 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 571 return HOTPLUG_HANDLER(machine); 572 } 573 return NULL; 574 } 575 576 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 577 { 578 CPUState *cs = qemu_get_cpu(cpu_index); 579 580 s390_cpu_restart(S390_CPU(cs)); 581 } 582 583 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 584 { 585 /* same logic as in sclp.c */ 586 int increment_size = 20; 587 ram_addr_t newsz; 588 589 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 590 increment_size++; 591 } 592 newsz = sz >> increment_size << increment_size; 593 594 if (sz != newsz) { 595 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 596 "MB to match machine restrictions. Consider updating " 597 "the guest definition.\n", (uint64_t) (sz / MiB), 598 (uint64_t) (newsz / MiB)); 599 } 600 return newsz; 601 } 602 603 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 604 { 605 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 606 607 return ms->aes_key_wrap; 608 } 609 610 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 611 Error **errp) 612 { 613 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 614 615 ms->aes_key_wrap = value; 616 } 617 618 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 619 { 620 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 621 622 return ms->dea_key_wrap; 623 } 624 625 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 626 Error **errp) 627 { 628 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 629 630 ms->dea_key_wrap = value; 631 } 632 633 static S390CcwMachineClass *current_mc; 634 635 /* 636 * Get the class of the s390-ccw-virtio machine that is currently in use. 637 * Note: libvirt is using the "none" machine to probe for the features of the 638 * host CPU, so in case this is called with the "none" machine, the function 639 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 640 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 641 * below return the correct default value for the "none" machine. 642 * 643 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 644 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 645 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 646 * CPU initialization and s390_has_feat() later should be sufficient. 647 */ 648 static S390CcwMachineClass *get_machine_class(void) 649 { 650 if (unlikely(!current_mc)) { 651 /* 652 * No s390 ccw machine was instantiated, we are likely to 653 * be called for the 'none' machine. The properties will 654 * have their after-initialization values. 655 */ 656 current_mc = S390_CCW_MACHINE_CLASS( 657 object_class_by_name(TYPE_S390_CCW_MACHINE)); 658 } 659 return current_mc; 660 } 661 662 bool ri_allowed(void) 663 { 664 return get_machine_class()->ri_allowed; 665 } 666 667 bool cpu_model_allowed(void) 668 { 669 return get_machine_class()->cpu_model_allowed; 670 } 671 672 bool hpage_1m_allowed(void) 673 { 674 return get_machine_class()->hpage_1m_allowed; 675 } 676 677 static void machine_get_loadparm(Object *obj, Visitor *v, 678 const char *name, void *opaque, 679 Error **errp) 680 { 681 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 682 char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 683 684 visit_type_str(v, name, &str, errp); 685 g_free(str); 686 } 687 688 static void machine_set_loadparm(Object *obj, Visitor *v, 689 const char *name, void *opaque, 690 Error **errp) 691 { 692 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 693 char *val; 694 int i; 695 696 if (!visit_type_str(v, name, &val, errp)) { 697 return; 698 } 699 700 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 701 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 702 703 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 704 (c == ' ')) { 705 ms->loadparm[i] = c; 706 } else { 707 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 708 c, c); 709 return; 710 } 711 } 712 713 for (; i < sizeof(ms->loadparm); i++) { 714 ms->loadparm[i] = ' '; /* pad right with spaces */ 715 } 716 } 717 718 static void ccw_machine_class_init(ObjectClass *oc, void *data) 719 { 720 MachineClass *mc = MACHINE_CLASS(oc); 721 NMIClass *nc = NMI_CLASS(oc); 722 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 723 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 724 725 s390mc->ri_allowed = true; 726 s390mc->cpu_model_allowed = true; 727 s390mc->css_migration_enabled = true; 728 s390mc->hpage_1m_allowed = true; 729 s390mc->max_threads = 1; 730 mc->init = ccw_init; 731 mc->reset = s390_machine_reset; 732 mc->block_default_type = IF_VIRTIO; 733 mc->no_cdrom = 1; 734 mc->no_floppy = 1; 735 mc->no_parallel = 1; 736 mc->no_sdcard = 1; 737 mc->max_cpus = S390_MAX_CPUS; 738 mc->has_hotpluggable_cpus = true; 739 assert(!mc->get_hotplug_handler); 740 mc->get_hotplug_handler = s390_get_hotplug_handler; 741 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 742 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 743 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 744 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 745 hc->plug = s390_machine_device_plug; 746 hc->unplug_request = s390_machine_device_unplug_request; 747 nc->nmi_monitor_handler = s390_nmi; 748 mc->default_ram_id = "s390.ram"; 749 750 object_class_property_add_bool(oc, "aes-key-wrap", 751 machine_get_aes_key_wrap, 752 machine_set_aes_key_wrap); 753 object_class_property_set_description(oc, "aes-key-wrap", 754 "enable/disable AES key wrapping using the CPACF wrapping key"); 755 756 object_class_property_add_bool(oc, "dea-key-wrap", 757 machine_get_dea_key_wrap, 758 machine_set_dea_key_wrap); 759 object_class_property_set_description(oc, "dea-key-wrap", 760 "enable/disable DEA key wrapping using the CPACF wrapping key"); 761 762 object_class_property_add(oc, "loadparm", "loadparm", 763 machine_get_loadparm, machine_set_loadparm, 764 NULL, NULL); 765 object_class_property_set_description(oc, "loadparm", 766 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 767 " to upper case) to pass to machine loader, boot manager," 768 " and guest kernel"); 769 } 770 771 static inline void s390_machine_initfn(Object *obj) 772 { 773 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 774 775 ms->aes_key_wrap = true; 776 ms->dea_key_wrap = true; 777 } 778 779 static const TypeInfo ccw_machine_info = { 780 .name = TYPE_S390_CCW_MACHINE, 781 .parent = TYPE_MACHINE, 782 .abstract = true, 783 .instance_size = sizeof(S390CcwMachineState), 784 .instance_init = s390_machine_initfn, 785 .class_size = sizeof(S390CcwMachineClass), 786 .class_init = ccw_machine_class_init, 787 .interfaces = (InterfaceInfo[]) { 788 { TYPE_NMI }, 789 { TYPE_HOTPLUG_HANDLER}, 790 { } 791 }, 792 }; 793 794 bool css_migration_enabled(void) 795 { 796 return get_machine_class()->css_migration_enabled; 797 } 798 799 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 800 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 801 void *data) \ 802 { \ 803 MachineClass *mc = MACHINE_CLASS(oc); \ 804 ccw_machine_##suffix##_class_options(mc); \ 805 mc->desc = "Virtual s390x machine (version " verstr ")"; \ 806 if (latest) { \ 807 mc->alias = "s390-ccw-virtio"; \ 808 mc->is_default = true; \ 809 } \ 810 } \ 811 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 812 { \ 813 MachineState *machine = MACHINE(obj); \ 814 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 815 ccw_machine_##suffix##_instance_options(machine); \ 816 } \ 817 static const TypeInfo ccw_machine_##suffix##_info = { \ 818 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 819 .parent = TYPE_S390_CCW_MACHINE, \ 820 .class_init = ccw_machine_##suffix##_class_init, \ 821 .instance_init = ccw_machine_##suffix##_instance_init, \ 822 }; \ 823 static void ccw_machine_register_##suffix(void) \ 824 { \ 825 type_register_static(&ccw_machine_##suffix##_info); \ 826 } \ 827 type_init(ccw_machine_register_##suffix) 828 829 static void ccw_machine_8_0_instance_options(MachineState *machine) 830 { 831 } 832 833 static void ccw_machine_8_0_class_options(MachineClass *mc) 834 { 835 } 836 DEFINE_CCW_MACHINE(8_0, "8.0", true); 837 838 static void ccw_machine_7_2_instance_options(MachineState *machine) 839 { 840 ccw_machine_8_0_instance_options(machine); 841 } 842 843 static void ccw_machine_7_2_class_options(MachineClass *mc) 844 { 845 ccw_machine_8_0_class_options(mc); 846 compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len); 847 } 848 DEFINE_CCW_MACHINE(7_2, "7.2", false); 849 850 static void ccw_machine_7_1_instance_options(MachineState *machine) 851 { 852 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 }; 853 854 ccw_machine_7_2_instance_options(machine); 855 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE); 856 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 857 } 858 859 static void ccw_machine_7_1_class_options(MachineClass *mc) 860 { 861 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 862 static GlobalProperty compat[] = { 863 { TYPE_S390_PCI_DEVICE, "interpret", "off", }, 864 { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", }, 865 }; 866 867 ccw_machine_7_2_class_options(mc); 868 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 869 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 870 s390mc->max_threads = S390_MAX_CPUS; 871 } 872 DEFINE_CCW_MACHINE(7_1, "7.1", false); 873 874 static void ccw_machine_7_0_instance_options(MachineState *machine) 875 { 876 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 }; 877 878 ccw_machine_7_1_instance_options(machine); 879 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 880 } 881 882 static void ccw_machine_7_0_class_options(MachineClass *mc) 883 { 884 ccw_machine_7_1_class_options(mc); 885 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 886 } 887 DEFINE_CCW_MACHINE(7_0, "7.0", false); 888 889 static void ccw_machine_6_2_instance_options(MachineState *machine) 890 { 891 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 }; 892 893 ccw_machine_7_0_instance_options(machine); 894 s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat); 895 } 896 897 static void ccw_machine_6_2_class_options(MachineClass *mc) 898 { 899 ccw_machine_7_0_class_options(mc); 900 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 901 } 902 DEFINE_CCW_MACHINE(6_2, "6.2", false); 903 904 static void ccw_machine_6_1_instance_options(MachineState *machine) 905 { 906 ccw_machine_6_2_instance_options(machine); 907 s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA); 908 s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2); 909 s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH); 910 s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP); 911 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI); 912 } 913 914 static void ccw_machine_6_1_class_options(MachineClass *mc) 915 { 916 ccw_machine_6_2_class_options(mc); 917 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 918 mc->smp_props.prefer_sockets = true; 919 } 920 DEFINE_CCW_MACHINE(6_1, "6.1", false); 921 922 static void ccw_machine_6_0_instance_options(MachineState *machine) 923 { 924 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 }; 925 926 ccw_machine_6_1_instance_options(machine); 927 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 928 } 929 930 static void ccw_machine_6_0_class_options(MachineClass *mc) 931 { 932 ccw_machine_6_1_class_options(mc); 933 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 934 } 935 DEFINE_CCW_MACHINE(6_0, "6.0", false); 936 937 static void ccw_machine_5_2_instance_options(MachineState *machine) 938 { 939 ccw_machine_6_0_instance_options(machine); 940 } 941 942 static void ccw_machine_5_2_class_options(MachineClass *mc) 943 { 944 ccw_machine_6_0_class_options(mc); 945 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 946 } 947 DEFINE_CCW_MACHINE(5_2, "5.2", false); 948 949 static void ccw_machine_5_1_instance_options(MachineState *machine) 950 { 951 ccw_machine_5_2_instance_options(machine); 952 } 953 954 static void ccw_machine_5_1_class_options(MachineClass *mc) 955 { 956 ccw_machine_5_2_class_options(mc); 957 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 958 } 959 DEFINE_CCW_MACHINE(5_1, "5.1", false); 960 961 static void ccw_machine_5_0_instance_options(MachineState *machine) 962 { 963 ccw_machine_5_1_instance_options(machine); 964 } 965 966 static void ccw_machine_5_0_class_options(MachineClass *mc) 967 { 968 ccw_machine_5_1_class_options(mc); 969 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 970 } 971 DEFINE_CCW_MACHINE(5_0, "5.0", false); 972 973 static void ccw_machine_4_2_instance_options(MachineState *machine) 974 { 975 ccw_machine_5_0_instance_options(machine); 976 } 977 978 static void ccw_machine_4_2_class_options(MachineClass *mc) 979 { 980 ccw_machine_5_0_class_options(mc); 981 mc->fixup_ram_size = s390_fixup_ram_size; 982 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 983 } 984 DEFINE_CCW_MACHINE(4_2, "4.2", false); 985 986 static void ccw_machine_4_1_instance_options(MachineState *machine) 987 { 988 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 989 ccw_machine_4_2_instance_options(machine); 990 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 991 } 992 993 static void ccw_machine_4_1_class_options(MachineClass *mc) 994 { 995 ccw_machine_4_2_class_options(mc); 996 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 997 } 998 DEFINE_CCW_MACHINE(4_1, "4.1", false); 999 1000 static void ccw_machine_4_0_instance_options(MachineState *machine) 1001 { 1002 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 1003 ccw_machine_4_1_instance_options(machine); 1004 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1005 } 1006 1007 static void ccw_machine_4_0_class_options(MachineClass *mc) 1008 { 1009 ccw_machine_4_1_class_options(mc); 1010 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 1011 } 1012 DEFINE_CCW_MACHINE(4_0, "4.0", false); 1013 1014 static void ccw_machine_3_1_instance_options(MachineState *machine) 1015 { 1016 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 1017 ccw_machine_4_0_instance_options(machine); 1018 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 1019 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 1020 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1021 } 1022 1023 static void ccw_machine_3_1_class_options(MachineClass *mc) 1024 { 1025 ccw_machine_4_0_class_options(mc); 1026 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 1027 } 1028 DEFINE_CCW_MACHINE(3_1, "3.1", false); 1029 1030 static void ccw_machine_3_0_instance_options(MachineState *machine) 1031 { 1032 ccw_machine_3_1_instance_options(machine); 1033 } 1034 1035 static void ccw_machine_3_0_class_options(MachineClass *mc) 1036 { 1037 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1038 1039 s390mc->hpage_1m_allowed = false; 1040 ccw_machine_3_1_class_options(mc); 1041 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 1042 } 1043 DEFINE_CCW_MACHINE(3_0, "3.0", false); 1044 1045 static void ccw_machine_2_12_instance_options(MachineState *machine) 1046 { 1047 ccw_machine_3_0_instance_options(machine); 1048 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 1049 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 1050 } 1051 1052 static void ccw_machine_2_12_class_options(MachineClass *mc) 1053 { 1054 ccw_machine_3_0_class_options(mc); 1055 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 1056 } 1057 DEFINE_CCW_MACHINE(2_12, "2.12", false); 1058 1059 static void ccw_machine_2_11_instance_options(MachineState *machine) 1060 { 1061 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 1062 ccw_machine_2_12_instance_options(machine); 1063 1064 /* before 2.12 we emulated the very first z900 */ 1065 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 1066 } 1067 1068 static void ccw_machine_2_11_class_options(MachineClass *mc) 1069 { 1070 static GlobalProperty compat[] = { 1071 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 1072 }; 1073 1074 ccw_machine_2_12_class_options(mc); 1075 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 1076 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1077 } 1078 DEFINE_CCW_MACHINE(2_11, "2.11", false); 1079 1080 static void ccw_machine_2_10_instance_options(MachineState *machine) 1081 { 1082 ccw_machine_2_11_instance_options(machine); 1083 } 1084 1085 static void ccw_machine_2_10_class_options(MachineClass *mc) 1086 { 1087 ccw_machine_2_11_class_options(mc); 1088 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 1089 } 1090 DEFINE_CCW_MACHINE(2_10, "2.10", false); 1091 1092 static void ccw_machine_2_9_instance_options(MachineState *machine) 1093 { 1094 ccw_machine_2_10_instance_options(machine); 1095 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 1096 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 1097 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 1098 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 1099 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 1100 } 1101 1102 static void ccw_machine_2_9_class_options(MachineClass *mc) 1103 { 1104 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1105 static GlobalProperty compat[] = { 1106 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 1107 }; 1108 1109 ccw_machine_2_10_class_options(mc); 1110 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 1111 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1112 s390mc->css_migration_enabled = false; 1113 } 1114 DEFINE_CCW_MACHINE(2_9, "2.9", false); 1115 1116 static void ccw_machine_2_8_instance_options(MachineState *machine) 1117 { 1118 ccw_machine_2_9_instance_options(machine); 1119 } 1120 1121 static void ccw_machine_2_8_class_options(MachineClass *mc) 1122 { 1123 static GlobalProperty compat[] = { 1124 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 1125 }; 1126 1127 ccw_machine_2_9_class_options(mc); 1128 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 1129 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1130 } 1131 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1132 1133 static void ccw_machine_2_7_instance_options(MachineState *machine) 1134 { 1135 ccw_machine_2_8_instance_options(machine); 1136 } 1137 1138 static void ccw_machine_2_7_class_options(MachineClass *mc) 1139 { 1140 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1141 1142 s390mc->cpu_model_allowed = false; 1143 ccw_machine_2_8_class_options(mc); 1144 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1145 } 1146 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1147 1148 static void ccw_machine_2_6_instance_options(MachineState *machine) 1149 { 1150 ccw_machine_2_7_instance_options(machine); 1151 } 1152 1153 static void ccw_machine_2_6_class_options(MachineClass *mc) 1154 { 1155 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1156 static GlobalProperty compat[] = { 1157 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1158 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1159 }; 1160 1161 s390mc->ri_allowed = false; 1162 ccw_machine_2_7_class_options(mc); 1163 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1164 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1165 } 1166 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1167 1168 static void ccw_machine_2_5_instance_options(MachineState *machine) 1169 { 1170 ccw_machine_2_6_instance_options(machine); 1171 } 1172 1173 static void ccw_machine_2_5_class_options(MachineClass *mc) 1174 { 1175 ccw_machine_2_6_class_options(mc); 1176 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1177 } 1178 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1179 1180 static void ccw_machine_2_4_instance_options(MachineState *machine) 1181 { 1182 ccw_machine_2_5_instance_options(machine); 1183 } 1184 1185 static void ccw_machine_2_4_class_options(MachineClass *mc) 1186 { 1187 static GlobalProperty compat[] = { 1188 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1189 { "virtio-blk-ccw", "max_revision", "0", }, 1190 { "virtio-balloon-ccw", "max_revision", "0", }, 1191 { "virtio-serial-ccw", "max_revision", "0", }, 1192 { "virtio-9p-ccw", "max_revision", "0", }, 1193 { "virtio-rng-ccw", "max_revision", "0", }, 1194 { "virtio-net-ccw", "max_revision", "0", }, 1195 { "virtio-scsi-ccw", "max_revision", "0", }, 1196 { "vhost-scsi-ccw", "max_revision", "0", }, 1197 }; 1198 1199 ccw_machine_2_5_class_options(mc); 1200 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1201 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1202 } 1203 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1204 1205 static void ccw_machine_register_types(void) 1206 { 1207 type_register_static(&ccw_machine_info); 1208 } 1209 1210 type_init(ccw_machine_register_types) 1211