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 "target/s390x/kvm/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 MachineClass *mc = MACHINE_GET_CLASS(machine); 249 int ret; 250 VirtualCssBus *css_bus; 251 DeviceState *dev; 252 253 s390_sclp_init(); 254 /* init memory + setup max page size. Required for the CPU model */ 255 s390_memory_init(machine->ram); 256 257 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 258 s390_init_cpus(machine); 259 260 /* Need CPU model to be determined before we can set up PV */ 261 s390_pv_init(machine->cgs, &error_fatal); 262 263 s390_flic_init(); 264 265 /* init the SIGP facility */ 266 s390_init_sigp(); 267 268 /* create AP bridge and bus(es) */ 269 s390_init_ap(); 270 271 /* get a BUS */ 272 css_bus = virtual_css_bus_init(); 273 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 274 machine->initrd_filename, 275 machine->firmware ?: "s390-ccw.img", 276 "s390-netboot.img", true); 277 278 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 279 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 280 OBJECT(dev)); 281 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 282 283 /* register hypercalls */ 284 virtio_ccw_register_hcalls(); 285 286 s390_enable_css_support(s390_cpu_addr2state(0)); 287 288 ret = css_create_css_image(VIRTUAL_CSSID, true); 289 290 assert(ret == 0); 291 if (css_migration_enabled()) { 292 css_register_vmstate(); 293 } 294 295 /* Create VirtIO network adapters */ 296 s390_create_virtio_net(BUS(css_bus), mc->default_nic); 297 298 /* init consoles */ 299 if (serial_hd(0)) { 300 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 301 } 302 if (serial_hd(1)) { 303 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 304 } 305 306 /* init the TOD clock */ 307 s390_init_tod(); 308 } 309 310 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 311 DeviceState *dev, Error **errp) 312 { 313 MachineState *ms = MACHINE(hotplug_dev); 314 S390CPU *cpu = S390_CPU(dev); 315 316 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 317 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 318 319 if (dev->hotplugged) { 320 raise_irq_cpu_hotplug(); 321 } 322 } 323 324 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 325 { 326 S390CPU *cpu = S390_CPU(cs); 327 328 s390_ipl_prepare_cpu(cpu); 329 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 330 } 331 332 static void s390_machine_unprotect(S390CcwMachineState *ms) 333 { 334 if (!s390_pv_vm_try_disable_async(ms)) { 335 s390_pv_vm_disable(); 336 } 337 ms->pv = false; 338 migrate_del_blocker(pv_mig_blocker); 339 error_free_or_abort(&pv_mig_blocker); 340 ram_block_discard_disable(false); 341 } 342 343 static int s390_machine_protect(S390CcwMachineState *ms) 344 { 345 Error *local_err = NULL; 346 int rc; 347 348 /* 349 * Discarding of memory in RAM blocks does not work as expected with 350 * protected VMs. Sharing and unsharing pages would be required. Disable 351 * it for now, until until we have a solution to make at least Linux 352 * guests either support it (e.g., virtio-balloon) or fail gracefully. 353 */ 354 rc = ram_block_discard_disable(true); 355 if (rc) { 356 error_report("protected VMs: cannot disable RAM discard"); 357 return rc; 358 } 359 360 error_setg(&pv_mig_blocker, 361 "protected VMs are currently not migratable."); 362 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 363 if (rc) { 364 ram_block_discard_disable(false); 365 error_report_err(local_err); 366 error_free_or_abort(&pv_mig_blocker); 367 return rc; 368 } 369 370 /* Create SE VM */ 371 rc = s390_pv_vm_enable(); 372 if (rc) { 373 ram_block_discard_disable(false); 374 migrate_del_blocker(pv_mig_blocker); 375 error_free_or_abort(&pv_mig_blocker); 376 return rc; 377 } 378 379 ms->pv = true; 380 381 /* Will return 0 if API is not available since it's not vital */ 382 rc = s390_pv_query_info(); 383 if (rc) { 384 goto out_err; 385 } 386 387 /* Set SE header and unpack */ 388 rc = s390_ipl_prepare_pv_header(); 389 if (rc) { 390 goto out_err; 391 } 392 393 /* Decrypt image */ 394 rc = s390_ipl_pv_unpack(); 395 if (rc) { 396 goto out_err; 397 } 398 399 /* Verify integrity */ 400 rc = s390_pv_verify(); 401 if (rc) { 402 goto out_err; 403 } 404 return rc; 405 406 out_err: 407 s390_machine_unprotect(ms); 408 return rc; 409 } 410 411 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 412 { 413 CPUState *cs; 414 415 if (!s390_is_pv()) { 416 return; 417 } 418 /* Unsharing requires all cpus to be stopped */ 419 CPU_FOREACH(cs) { 420 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 421 } 422 s390_pv_unshare(); 423 s390_pv_prep_reset(); 424 } 425 426 static void s390_machine_reset(MachineState *machine, ShutdownCause reason) 427 { 428 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 429 enum s390_reset reset_type; 430 CPUState *cs, *t; 431 S390CPU *cpu; 432 433 /* get the reset parameters, reset them once done */ 434 s390_ipl_get_reset_request(&cs, &reset_type); 435 436 /* all CPUs are paused and synchronized at this point */ 437 s390_cmma_reset(); 438 439 cpu = S390_CPU(cs); 440 441 switch (reset_type) { 442 case S390_RESET_EXTERNAL: 443 case S390_RESET_REIPL: 444 if (s390_is_pv()) { 445 s390_machine_unprotect(ms); 446 } 447 448 qemu_devices_reset(reason); 449 s390_crypto_reset(); 450 451 /* configure and start the ipl CPU only */ 452 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 453 break; 454 case S390_RESET_MODIFIED_CLEAR: 455 /* 456 * Subsystem reset needs to be done before we unshare memory 457 * and lose access to VIRTIO structures in guest memory. 458 */ 459 subsystem_reset(); 460 s390_crypto_reset(); 461 s390_pv_prepare_reset(ms); 462 CPU_FOREACH(t) { 463 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 464 } 465 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 466 break; 467 case S390_RESET_LOAD_NORMAL: 468 /* 469 * Subsystem reset needs to be done before we unshare memory 470 * and lose access to VIRTIO structures in guest memory. 471 */ 472 subsystem_reset(); 473 s390_pv_prepare_reset(ms); 474 CPU_FOREACH(t) { 475 if (t == cs) { 476 continue; 477 } 478 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 479 } 480 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 481 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 482 break; 483 case S390_RESET_PV: /* Subcode 10 */ 484 subsystem_reset(); 485 s390_crypto_reset(); 486 487 CPU_FOREACH(t) { 488 if (t == cs) { 489 continue; 490 } 491 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 492 } 493 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 494 495 if (s390_machine_protect(ms)) { 496 s390_pv_inject_reset_error(cs); 497 /* 498 * Continue after the diag308 so the guest knows something 499 * went wrong. 500 */ 501 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 502 return; 503 } 504 505 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 506 break; 507 default: 508 g_assert_not_reached(); 509 } 510 511 CPU_FOREACH(t) { 512 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 513 } 514 s390_ipl_clear_reset_request(); 515 } 516 517 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 518 DeviceState *dev, Error **errp) 519 { 520 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 521 s390_cpu_plug(hotplug_dev, dev, errp); 522 } 523 } 524 525 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 526 DeviceState *dev, Error **errp) 527 { 528 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 529 error_setg(errp, "CPU hot unplug not supported on this machine"); 530 return; 531 } 532 } 533 534 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 535 unsigned cpu_index) 536 { 537 MachineClass *mc = MACHINE_GET_CLASS(ms); 538 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 539 540 assert(cpu_index < possible_cpus->len); 541 return possible_cpus->cpus[cpu_index].props; 542 } 543 544 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 545 { 546 int i; 547 unsigned int max_cpus = ms->smp.max_cpus; 548 549 if (ms->possible_cpus) { 550 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 551 return ms->possible_cpus; 552 } 553 554 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 555 sizeof(CPUArchId) * max_cpus); 556 ms->possible_cpus->len = max_cpus; 557 for (i = 0; i < ms->possible_cpus->len; i++) { 558 ms->possible_cpus->cpus[i].type = ms->cpu_type; 559 ms->possible_cpus->cpus[i].vcpus_count = 1; 560 ms->possible_cpus->cpus[i].arch_id = i; 561 ms->possible_cpus->cpus[i].props.has_core_id = true; 562 ms->possible_cpus->cpus[i].props.core_id = i; 563 } 564 565 return ms->possible_cpus; 566 } 567 568 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 569 DeviceState *dev) 570 { 571 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 572 return HOTPLUG_HANDLER(machine); 573 } 574 return NULL; 575 } 576 577 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 578 { 579 CPUState *cs = qemu_get_cpu(cpu_index); 580 581 s390_cpu_restart(S390_CPU(cs)); 582 } 583 584 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 585 { 586 /* same logic as in sclp.c */ 587 int increment_size = 20; 588 ram_addr_t newsz; 589 590 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 591 increment_size++; 592 } 593 newsz = sz >> increment_size << increment_size; 594 595 if (sz != newsz) { 596 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 597 "MB to match machine restrictions. Consider updating " 598 "the guest definition.\n", (uint64_t) (sz / MiB), 599 (uint64_t) (newsz / MiB)); 600 } 601 return newsz; 602 } 603 604 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 605 { 606 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 607 608 return ms->aes_key_wrap; 609 } 610 611 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 612 Error **errp) 613 { 614 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 615 616 ms->aes_key_wrap = value; 617 } 618 619 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 620 { 621 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 622 623 return ms->dea_key_wrap; 624 } 625 626 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 627 Error **errp) 628 { 629 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 630 631 ms->dea_key_wrap = value; 632 } 633 634 static S390CcwMachineClass *current_mc; 635 636 /* 637 * Get the class of the s390-ccw-virtio machine that is currently in use. 638 * Note: libvirt is using the "none" machine to probe for the features of the 639 * host CPU, so in case this is called with the "none" machine, the function 640 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 641 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 642 * below return the correct default value for the "none" machine. 643 * 644 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 645 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 646 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 647 * CPU initialization and s390_has_feat() later should be sufficient. 648 */ 649 static S390CcwMachineClass *get_machine_class(void) 650 { 651 if (unlikely(!current_mc)) { 652 /* 653 * No s390 ccw machine was instantiated, we are likely to 654 * be called for the 'none' machine. The properties will 655 * have their after-initialization values. 656 */ 657 current_mc = S390_CCW_MACHINE_CLASS( 658 object_class_by_name(TYPE_S390_CCW_MACHINE)); 659 } 660 return current_mc; 661 } 662 663 bool ri_allowed(void) 664 { 665 return get_machine_class()->ri_allowed; 666 } 667 668 bool cpu_model_allowed(void) 669 { 670 return get_machine_class()->cpu_model_allowed; 671 } 672 673 bool hpage_1m_allowed(void) 674 { 675 return get_machine_class()->hpage_1m_allowed; 676 } 677 678 static void machine_get_loadparm(Object *obj, Visitor *v, 679 const char *name, void *opaque, 680 Error **errp) 681 { 682 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 683 char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 684 685 visit_type_str(v, name, &str, errp); 686 g_free(str); 687 } 688 689 static void machine_set_loadparm(Object *obj, Visitor *v, 690 const char *name, void *opaque, 691 Error **errp) 692 { 693 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 694 char *val; 695 int i; 696 697 if (!visit_type_str(v, name, &val, errp)) { 698 return; 699 } 700 701 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 702 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 703 704 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 705 (c == ' ')) { 706 ms->loadparm[i] = c; 707 } else { 708 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 709 c, c); 710 return; 711 } 712 } 713 714 for (; i < sizeof(ms->loadparm); i++) { 715 ms->loadparm[i] = ' '; /* pad right with spaces */ 716 } 717 } 718 719 static void ccw_machine_class_init(ObjectClass *oc, void *data) 720 { 721 MachineClass *mc = MACHINE_CLASS(oc); 722 NMIClass *nc = NMI_CLASS(oc); 723 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 724 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 725 726 s390mc->ri_allowed = true; 727 s390mc->cpu_model_allowed = true; 728 s390mc->css_migration_enabled = true; 729 s390mc->hpage_1m_allowed = true; 730 s390mc->max_threads = 1; 731 mc->init = ccw_init; 732 mc->reset = s390_machine_reset; 733 mc->block_default_type = IF_VIRTIO; 734 mc->no_cdrom = 1; 735 mc->no_floppy = 1; 736 mc->no_parallel = 1; 737 mc->no_sdcard = 1; 738 mc->max_cpus = S390_MAX_CPUS; 739 mc->has_hotpluggable_cpus = true; 740 assert(!mc->get_hotplug_handler); 741 mc->get_hotplug_handler = s390_get_hotplug_handler; 742 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 743 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 744 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 745 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 746 hc->plug = s390_machine_device_plug; 747 hc->unplug_request = s390_machine_device_unplug_request; 748 nc->nmi_monitor_handler = s390_nmi; 749 mc->default_ram_id = "s390.ram"; 750 mc->default_nic = "virtio-net-ccw"; 751 752 object_class_property_add_bool(oc, "aes-key-wrap", 753 machine_get_aes_key_wrap, 754 machine_set_aes_key_wrap); 755 object_class_property_set_description(oc, "aes-key-wrap", 756 "enable/disable AES key wrapping using the CPACF wrapping key"); 757 758 object_class_property_add_bool(oc, "dea-key-wrap", 759 machine_get_dea_key_wrap, 760 machine_set_dea_key_wrap); 761 object_class_property_set_description(oc, "dea-key-wrap", 762 "enable/disable DEA key wrapping using the CPACF wrapping key"); 763 764 object_class_property_add(oc, "loadparm", "loadparm", 765 machine_get_loadparm, machine_set_loadparm, 766 NULL, NULL); 767 object_class_property_set_description(oc, "loadparm", 768 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 769 " to upper case) to pass to machine loader, boot manager," 770 " and guest kernel"); 771 } 772 773 static inline void s390_machine_initfn(Object *obj) 774 { 775 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 776 777 ms->aes_key_wrap = true; 778 ms->dea_key_wrap = true; 779 } 780 781 static const TypeInfo ccw_machine_info = { 782 .name = TYPE_S390_CCW_MACHINE, 783 .parent = TYPE_MACHINE, 784 .abstract = true, 785 .instance_size = sizeof(S390CcwMachineState), 786 .instance_init = s390_machine_initfn, 787 .class_size = sizeof(S390CcwMachineClass), 788 .class_init = ccw_machine_class_init, 789 .interfaces = (InterfaceInfo[]) { 790 { TYPE_NMI }, 791 { TYPE_HOTPLUG_HANDLER}, 792 { } 793 }, 794 }; 795 796 bool css_migration_enabled(void) 797 { 798 return get_machine_class()->css_migration_enabled; 799 } 800 801 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 802 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 803 void *data) \ 804 { \ 805 MachineClass *mc = MACHINE_CLASS(oc); \ 806 ccw_machine_##suffix##_class_options(mc); \ 807 mc->desc = "Virtual s390x machine (version " verstr ")"; \ 808 if (latest) { \ 809 mc->alias = "s390-ccw-virtio"; \ 810 mc->is_default = true; \ 811 } \ 812 } \ 813 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 814 { \ 815 MachineState *machine = MACHINE(obj); \ 816 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 817 ccw_machine_##suffix##_instance_options(machine); \ 818 } \ 819 static const TypeInfo ccw_machine_##suffix##_info = { \ 820 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 821 .parent = TYPE_S390_CCW_MACHINE, \ 822 .class_init = ccw_machine_##suffix##_class_init, \ 823 .instance_init = ccw_machine_##suffix##_instance_init, \ 824 }; \ 825 static void ccw_machine_register_##suffix(void) \ 826 { \ 827 type_register_static(&ccw_machine_##suffix##_info); \ 828 } \ 829 type_init(ccw_machine_register_##suffix) 830 831 static void ccw_machine_8_2_instance_options(MachineState *machine) 832 { 833 } 834 835 static void ccw_machine_8_2_class_options(MachineClass *mc) 836 { 837 } 838 DEFINE_CCW_MACHINE(8_2, "8.2", true); 839 840 static void ccw_machine_8_1_instance_options(MachineState *machine) 841 { 842 ccw_machine_8_2_instance_options(machine); 843 } 844 845 static void ccw_machine_8_1_class_options(MachineClass *mc) 846 { 847 ccw_machine_8_2_class_options(mc); 848 compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len); 849 } 850 DEFINE_CCW_MACHINE(8_1, "8.1", false); 851 852 static void ccw_machine_8_0_instance_options(MachineState *machine) 853 { 854 ccw_machine_8_1_instance_options(machine); 855 } 856 857 static void ccw_machine_8_0_class_options(MachineClass *mc) 858 { 859 ccw_machine_8_1_class_options(mc); 860 compat_props_add(mc->compat_props, hw_compat_8_0, hw_compat_8_0_len); 861 } 862 DEFINE_CCW_MACHINE(8_0, "8.0", false); 863 864 static void ccw_machine_7_2_instance_options(MachineState *machine) 865 { 866 ccw_machine_8_0_instance_options(machine); 867 } 868 869 static void ccw_machine_7_2_class_options(MachineClass *mc) 870 { 871 ccw_machine_8_0_class_options(mc); 872 compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len); 873 } 874 DEFINE_CCW_MACHINE(7_2, "7.2", false); 875 876 static void ccw_machine_7_1_instance_options(MachineState *machine) 877 { 878 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 }; 879 880 ccw_machine_7_2_instance_options(machine); 881 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE); 882 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 883 } 884 885 static void ccw_machine_7_1_class_options(MachineClass *mc) 886 { 887 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 888 static GlobalProperty compat[] = { 889 { TYPE_S390_PCI_DEVICE, "interpret", "off", }, 890 { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", }, 891 }; 892 893 ccw_machine_7_2_class_options(mc); 894 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 895 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 896 s390mc->max_threads = S390_MAX_CPUS; 897 } 898 DEFINE_CCW_MACHINE(7_1, "7.1", false); 899 900 static void ccw_machine_7_0_instance_options(MachineState *machine) 901 { 902 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 }; 903 904 ccw_machine_7_1_instance_options(machine); 905 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 906 } 907 908 static void ccw_machine_7_0_class_options(MachineClass *mc) 909 { 910 ccw_machine_7_1_class_options(mc); 911 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 912 } 913 DEFINE_CCW_MACHINE(7_0, "7.0", false); 914 915 static void ccw_machine_6_2_instance_options(MachineState *machine) 916 { 917 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 }; 918 919 ccw_machine_7_0_instance_options(machine); 920 s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat); 921 } 922 923 static void ccw_machine_6_2_class_options(MachineClass *mc) 924 { 925 ccw_machine_7_0_class_options(mc); 926 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 927 } 928 DEFINE_CCW_MACHINE(6_2, "6.2", false); 929 930 static void ccw_machine_6_1_instance_options(MachineState *machine) 931 { 932 ccw_machine_6_2_instance_options(machine); 933 s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA); 934 s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2); 935 s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH); 936 s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP); 937 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI); 938 } 939 940 static void ccw_machine_6_1_class_options(MachineClass *mc) 941 { 942 ccw_machine_6_2_class_options(mc); 943 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 944 mc->smp_props.prefer_sockets = true; 945 } 946 DEFINE_CCW_MACHINE(6_1, "6.1", false); 947 948 static void ccw_machine_6_0_instance_options(MachineState *machine) 949 { 950 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 }; 951 952 ccw_machine_6_1_instance_options(machine); 953 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 954 } 955 956 static void ccw_machine_6_0_class_options(MachineClass *mc) 957 { 958 ccw_machine_6_1_class_options(mc); 959 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 960 } 961 DEFINE_CCW_MACHINE(6_0, "6.0", false); 962 963 static void ccw_machine_5_2_instance_options(MachineState *machine) 964 { 965 ccw_machine_6_0_instance_options(machine); 966 } 967 968 static void ccw_machine_5_2_class_options(MachineClass *mc) 969 { 970 ccw_machine_6_0_class_options(mc); 971 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 972 } 973 DEFINE_CCW_MACHINE(5_2, "5.2", false); 974 975 static void ccw_machine_5_1_instance_options(MachineState *machine) 976 { 977 ccw_machine_5_2_instance_options(machine); 978 } 979 980 static void ccw_machine_5_1_class_options(MachineClass *mc) 981 { 982 ccw_machine_5_2_class_options(mc); 983 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 984 } 985 DEFINE_CCW_MACHINE(5_1, "5.1", false); 986 987 static void ccw_machine_5_0_instance_options(MachineState *machine) 988 { 989 ccw_machine_5_1_instance_options(machine); 990 } 991 992 static void ccw_machine_5_0_class_options(MachineClass *mc) 993 { 994 ccw_machine_5_1_class_options(mc); 995 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 996 } 997 DEFINE_CCW_MACHINE(5_0, "5.0", false); 998 999 static void ccw_machine_4_2_instance_options(MachineState *machine) 1000 { 1001 ccw_machine_5_0_instance_options(machine); 1002 } 1003 1004 static void ccw_machine_4_2_class_options(MachineClass *mc) 1005 { 1006 ccw_machine_5_0_class_options(mc); 1007 mc->fixup_ram_size = s390_fixup_ram_size; 1008 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 1009 } 1010 DEFINE_CCW_MACHINE(4_2, "4.2", false); 1011 1012 static void ccw_machine_4_1_instance_options(MachineState *machine) 1013 { 1014 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 1015 ccw_machine_4_2_instance_options(machine); 1016 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 1017 } 1018 1019 static void ccw_machine_4_1_class_options(MachineClass *mc) 1020 { 1021 ccw_machine_4_2_class_options(mc); 1022 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 1023 } 1024 DEFINE_CCW_MACHINE(4_1, "4.1", false); 1025 1026 static void ccw_machine_4_0_instance_options(MachineState *machine) 1027 { 1028 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 1029 ccw_machine_4_1_instance_options(machine); 1030 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1031 } 1032 1033 static void ccw_machine_4_0_class_options(MachineClass *mc) 1034 { 1035 ccw_machine_4_1_class_options(mc); 1036 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 1037 } 1038 DEFINE_CCW_MACHINE(4_0, "4.0", false); 1039 1040 static void ccw_machine_3_1_instance_options(MachineState *machine) 1041 { 1042 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 1043 ccw_machine_4_0_instance_options(machine); 1044 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 1045 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 1046 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1047 } 1048 1049 static void ccw_machine_3_1_class_options(MachineClass *mc) 1050 { 1051 ccw_machine_4_0_class_options(mc); 1052 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 1053 } 1054 DEFINE_CCW_MACHINE(3_1, "3.1", false); 1055 1056 static void ccw_machine_3_0_instance_options(MachineState *machine) 1057 { 1058 ccw_machine_3_1_instance_options(machine); 1059 } 1060 1061 static void ccw_machine_3_0_class_options(MachineClass *mc) 1062 { 1063 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1064 1065 s390mc->hpage_1m_allowed = false; 1066 ccw_machine_3_1_class_options(mc); 1067 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 1068 } 1069 DEFINE_CCW_MACHINE(3_0, "3.0", false); 1070 1071 static void ccw_machine_2_12_instance_options(MachineState *machine) 1072 { 1073 ccw_machine_3_0_instance_options(machine); 1074 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 1075 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 1076 } 1077 1078 static void ccw_machine_2_12_class_options(MachineClass *mc) 1079 { 1080 ccw_machine_3_0_class_options(mc); 1081 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 1082 } 1083 DEFINE_CCW_MACHINE(2_12, "2.12", false); 1084 1085 static void ccw_machine_2_11_instance_options(MachineState *machine) 1086 { 1087 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 1088 ccw_machine_2_12_instance_options(machine); 1089 1090 /* before 2.12 we emulated the very first z900 */ 1091 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 1092 } 1093 1094 static void ccw_machine_2_11_class_options(MachineClass *mc) 1095 { 1096 static GlobalProperty compat[] = { 1097 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 1098 }; 1099 1100 ccw_machine_2_12_class_options(mc); 1101 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 1102 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1103 } 1104 DEFINE_CCW_MACHINE(2_11, "2.11", false); 1105 1106 static void ccw_machine_2_10_instance_options(MachineState *machine) 1107 { 1108 ccw_machine_2_11_instance_options(machine); 1109 } 1110 1111 static void ccw_machine_2_10_class_options(MachineClass *mc) 1112 { 1113 ccw_machine_2_11_class_options(mc); 1114 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 1115 } 1116 DEFINE_CCW_MACHINE(2_10, "2.10", false); 1117 1118 static void ccw_machine_2_9_instance_options(MachineState *machine) 1119 { 1120 ccw_machine_2_10_instance_options(machine); 1121 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 1122 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 1123 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 1124 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 1125 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 1126 } 1127 1128 static void ccw_machine_2_9_class_options(MachineClass *mc) 1129 { 1130 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1131 static GlobalProperty compat[] = { 1132 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 1133 }; 1134 1135 ccw_machine_2_10_class_options(mc); 1136 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 1137 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1138 s390mc->css_migration_enabled = false; 1139 } 1140 DEFINE_CCW_MACHINE(2_9, "2.9", false); 1141 1142 static void ccw_machine_2_8_instance_options(MachineState *machine) 1143 { 1144 ccw_machine_2_9_instance_options(machine); 1145 } 1146 1147 static void ccw_machine_2_8_class_options(MachineClass *mc) 1148 { 1149 static GlobalProperty compat[] = { 1150 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 1151 }; 1152 1153 ccw_machine_2_9_class_options(mc); 1154 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 1155 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1156 } 1157 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1158 1159 static void ccw_machine_2_7_instance_options(MachineState *machine) 1160 { 1161 ccw_machine_2_8_instance_options(machine); 1162 } 1163 1164 static void ccw_machine_2_7_class_options(MachineClass *mc) 1165 { 1166 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1167 1168 s390mc->cpu_model_allowed = false; 1169 ccw_machine_2_8_class_options(mc); 1170 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1171 } 1172 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1173 1174 static void ccw_machine_2_6_instance_options(MachineState *machine) 1175 { 1176 ccw_machine_2_7_instance_options(machine); 1177 } 1178 1179 static void ccw_machine_2_6_class_options(MachineClass *mc) 1180 { 1181 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1182 static GlobalProperty compat[] = { 1183 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1184 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1185 }; 1186 1187 s390mc->ri_allowed = false; 1188 ccw_machine_2_7_class_options(mc); 1189 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1190 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1191 } 1192 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1193 1194 static void ccw_machine_2_5_instance_options(MachineState *machine) 1195 { 1196 ccw_machine_2_6_instance_options(machine); 1197 } 1198 1199 static void ccw_machine_2_5_class_options(MachineClass *mc) 1200 { 1201 ccw_machine_2_6_class_options(mc); 1202 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1203 } 1204 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1205 1206 static void ccw_machine_2_4_instance_options(MachineState *machine) 1207 { 1208 ccw_machine_2_5_instance_options(machine); 1209 } 1210 1211 static void ccw_machine_2_4_class_options(MachineClass *mc) 1212 { 1213 static GlobalProperty compat[] = { 1214 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1215 { "virtio-blk-ccw", "max_revision", "0", }, 1216 { "virtio-balloon-ccw", "max_revision", "0", }, 1217 { "virtio-serial-ccw", "max_revision", "0", }, 1218 { "virtio-9p-ccw", "max_revision", "0", }, 1219 { "virtio-rng-ccw", "max_revision", "0", }, 1220 { "virtio-net-ccw", "max_revision", "0", }, 1221 { "virtio-scsi-ccw", "max_revision", "0", }, 1222 { "vhost-scsi-ccw", "max_revision", "0", }, 1223 }; 1224 1225 ccw_machine_2_5_class_options(mc); 1226 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1227 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1228 } 1229 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1230 1231 static void ccw_machine_register_types(void) 1232 { 1233 type_register_static(&ccw_machine_info); 1234 } 1235 1236 type_init(ccw_machine_register_types) 1237