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 qemu_check_nic_model(nd, "virtio"); 226 227 dev = qdev_new(name); 228 qdev_set_nic_properties(dev, nd); 229 qdev_realize_and_unref(dev, bus, &error_fatal); 230 } 231 } 232 233 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 234 { 235 DeviceState *dev; 236 237 dev = qdev_new(type); 238 qdev_prop_set_chr(dev, "chardev", chardev); 239 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 240 } 241 242 static void ccw_init(MachineState *machine) 243 { 244 MachineClass *mc = MACHINE_GET_CLASS(machine); 245 int ret; 246 VirtualCssBus *css_bus; 247 DeviceState *dev; 248 249 s390_sclp_init(); 250 /* init memory + setup max page size. Required for the CPU model */ 251 s390_memory_init(machine->ram); 252 253 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 254 s390_init_cpus(machine); 255 256 /* Need CPU model to be determined before we can set up PV */ 257 s390_pv_init(machine->cgs, &error_fatal); 258 259 s390_flic_init(); 260 261 /* init the SIGP facility */ 262 s390_init_sigp(); 263 264 /* create AP bridge and bus(es) */ 265 s390_init_ap(); 266 267 /* get a BUS */ 268 css_bus = virtual_css_bus_init(); 269 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 270 machine->initrd_filename, 271 machine->firmware ?: "s390-ccw.img", 272 "s390-netboot.img", true); 273 274 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 275 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 276 OBJECT(dev)); 277 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 278 279 /* register hypercalls */ 280 virtio_ccw_register_hcalls(); 281 282 s390_enable_css_support(s390_cpu_addr2state(0)); 283 284 ret = css_create_css_image(VIRTUAL_CSSID, true); 285 286 assert(ret == 0); 287 if (css_migration_enabled()) { 288 css_register_vmstate(); 289 } 290 291 /* Create VirtIO network adapters */ 292 s390_create_virtio_net(BUS(css_bus), mc->default_nic); 293 294 /* init consoles */ 295 if (serial_hd(0)) { 296 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 297 } 298 if (serial_hd(1)) { 299 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 300 } 301 302 /* init the TOD clock */ 303 s390_init_tod(); 304 } 305 306 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 307 DeviceState *dev, Error **errp) 308 { 309 MachineState *ms = MACHINE(hotplug_dev); 310 S390CPU *cpu = S390_CPU(dev); 311 312 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 313 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 314 315 if (dev->hotplugged) { 316 raise_irq_cpu_hotplug(); 317 } 318 } 319 320 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 321 { 322 S390CPU *cpu = S390_CPU(cs); 323 324 s390_ipl_prepare_cpu(cpu); 325 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 326 } 327 328 static void s390_machine_unprotect(S390CcwMachineState *ms) 329 { 330 if (!s390_pv_vm_try_disable_async(ms)) { 331 s390_pv_vm_disable(); 332 } 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 mc->default_nic = "virtio-net-ccw"; 747 748 object_class_property_add_bool(oc, "aes-key-wrap", 749 machine_get_aes_key_wrap, 750 machine_set_aes_key_wrap); 751 object_class_property_set_description(oc, "aes-key-wrap", 752 "enable/disable AES key wrapping using the CPACF wrapping key"); 753 754 object_class_property_add_bool(oc, "dea-key-wrap", 755 machine_get_dea_key_wrap, 756 machine_set_dea_key_wrap); 757 object_class_property_set_description(oc, "dea-key-wrap", 758 "enable/disable DEA key wrapping using the CPACF wrapping key"); 759 760 object_class_property_add(oc, "loadparm", "loadparm", 761 machine_get_loadparm, machine_set_loadparm, 762 NULL, NULL); 763 object_class_property_set_description(oc, "loadparm", 764 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 765 " to upper case) to pass to machine loader, boot manager," 766 " and guest kernel"); 767 } 768 769 static inline void s390_machine_initfn(Object *obj) 770 { 771 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 772 773 ms->aes_key_wrap = true; 774 ms->dea_key_wrap = true; 775 } 776 777 static const TypeInfo ccw_machine_info = { 778 .name = TYPE_S390_CCW_MACHINE, 779 .parent = TYPE_MACHINE, 780 .abstract = true, 781 .instance_size = sizeof(S390CcwMachineState), 782 .instance_init = s390_machine_initfn, 783 .class_size = sizeof(S390CcwMachineClass), 784 .class_init = ccw_machine_class_init, 785 .interfaces = (InterfaceInfo[]) { 786 { TYPE_NMI }, 787 { TYPE_HOTPLUG_HANDLER}, 788 { } 789 }, 790 }; 791 792 bool css_migration_enabled(void) 793 { 794 return get_machine_class()->css_migration_enabled; 795 } 796 797 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 798 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 799 void *data) \ 800 { \ 801 MachineClass *mc = MACHINE_CLASS(oc); \ 802 ccw_machine_##suffix##_class_options(mc); \ 803 mc->desc = "Virtual s390x machine (version " verstr ")"; \ 804 if (latest) { \ 805 mc->alias = "s390-ccw-virtio"; \ 806 mc->is_default = true; \ 807 } \ 808 } \ 809 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 810 { \ 811 MachineState *machine = MACHINE(obj); \ 812 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 813 ccw_machine_##suffix##_instance_options(machine); \ 814 } \ 815 static const TypeInfo ccw_machine_##suffix##_info = { \ 816 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 817 .parent = TYPE_S390_CCW_MACHINE, \ 818 .class_init = ccw_machine_##suffix##_class_init, \ 819 .instance_init = ccw_machine_##suffix##_instance_init, \ 820 }; \ 821 static void ccw_machine_register_##suffix(void) \ 822 { \ 823 type_register_static(&ccw_machine_##suffix##_info); \ 824 } \ 825 type_init(ccw_machine_register_##suffix) 826 827 static void ccw_machine_8_2_instance_options(MachineState *machine) 828 { 829 } 830 831 static void ccw_machine_8_2_class_options(MachineClass *mc) 832 { 833 } 834 DEFINE_CCW_MACHINE(8_2, "8.2", true); 835 836 static void ccw_machine_8_1_instance_options(MachineState *machine) 837 { 838 ccw_machine_8_2_instance_options(machine); 839 } 840 841 static void ccw_machine_8_1_class_options(MachineClass *mc) 842 { 843 ccw_machine_8_2_class_options(mc); 844 compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len); 845 } 846 DEFINE_CCW_MACHINE(8_1, "8.1", false); 847 848 static void ccw_machine_8_0_instance_options(MachineState *machine) 849 { 850 ccw_machine_8_1_instance_options(machine); 851 } 852 853 static void ccw_machine_8_0_class_options(MachineClass *mc) 854 { 855 ccw_machine_8_1_class_options(mc); 856 compat_props_add(mc->compat_props, hw_compat_8_0, hw_compat_8_0_len); 857 } 858 DEFINE_CCW_MACHINE(8_0, "8.0", false); 859 860 static void ccw_machine_7_2_instance_options(MachineState *machine) 861 { 862 ccw_machine_8_0_instance_options(machine); 863 } 864 865 static void ccw_machine_7_2_class_options(MachineClass *mc) 866 { 867 ccw_machine_8_0_class_options(mc); 868 compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len); 869 } 870 DEFINE_CCW_MACHINE(7_2, "7.2", false); 871 872 static void ccw_machine_7_1_instance_options(MachineState *machine) 873 { 874 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 }; 875 876 ccw_machine_7_2_instance_options(machine); 877 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE); 878 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 879 } 880 881 static void ccw_machine_7_1_class_options(MachineClass *mc) 882 { 883 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 884 static GlobalProperty compat[] = { 885 { TYPE_S390_PCI_DEVICE, "interpret", "off", }, 886 { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", }, 887 }; 888 889 ccw_machine_7_2_class_options(mc); 890 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 891 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 892 s390mc->max_threads = S390_MAX_CPUS; 893 } 894 DEFINE_CCW_MACHINE(7_1, "7.1", false); 895 896 static void ccw_machine_7_0_instance_options(MachineState *machine) 897 { 898 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 }; 899 900 ccw_machine_7_1_instance_options(machine); 901 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 902 } 903 904 static void ccw_machine_7_0_class_options(MachineClass *mc) 905 { 906 ccw_machine_7_1_class_options(mc); 907 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 908 } 909 DEFINE_CCW_MACHINE(7_0, "7.0", false); 910 911 static void ccw_machine_6_2_instance_options(MachineState *machine) 912 { 913 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 }; 914 915 ccw_machine_7_0_instance_options(machine); 916 s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat); 917 } 918 919 static void ccw_machine_6_2_class_options(MachineClass *mc) 920 { 921 ccw_machine_7_0_class_options(mc); 922 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 923 } 924 DEFINE_CCW_MACHINE(6_2, "6.2", false); 925 926 static void ccw_machine_6_1_instance_options(MachineState *machine) 927 { 928 ccw_machine_6_2_instance_options(machine); 929 s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA); 930 s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2); 931 s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH); 932 s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP); 933 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI); 934 } 935 936 static void ccw_machine_6_1_class_options(MachineClass *mc) 937 { 938 ccw_machine_6_2_class_options(mc); 939 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 940 mc->smp_props.prefer_sockets = true; 941 } 942 DEFINE_CCW_MACHINE(6_1, "6.1", false); 943 944 static void ccw_machine_6_0_instance_options(MachineState *machine) 945 { 946 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 }; 947 948 ccw_machine_6_1_instance_options(machine); 949 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 950 } 951 952 static void ccw_machine_6_0_class_options(MachineClass *mc) 953 { 954 ccw_machine_6_1_class_options(mc); 955 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 956 } 957 DEFINE_CCW_MACHINE(6_0, "6.0", false); 958 959 static void ccw_machine_5_2_instance_options(MachineState *machine) 960 { 961 ccw_machine_6_0_instance_options(machine); 962 } 963 964 static void ccw_machine_5_2_class_options(MachineClass *mc) 965 { 966 ccw_machine_6_0_class_options(mc); 967 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 968 } 969 DEFINE_CCW_MACHINE(5_2, "5.2", false); 970 971 static void ccw_machine_5_1_instance_options(MachineState *machine) 972 { 973 ccw_machine_5_2_instance_options(machine); 974 } 975 976 static void ccw_machine_5_1_class_options(MachineClass *mc) 977 { 978 ccw_machine_5_2_class_options(mc); 979 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 980 } 981 DEFINE_CCW_MACHINE(5_1, "5.1", false); 982 983 static void ccw_machine_5_0_instance_options(MachineState *machine) 984 { 985 ccw_machine_5_1_instance_options(machine); 986 } 987 988 static void ccw_machine_5_0_class_options(MachineClass *mc) 989 { 990 ccw_machine_5_1_class_options(mc); 991 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 992 } 993 DEFINE_CCW_MACHINE(5_0, "5.0", false); 994 995 static void ccw_machine_4_2_instance_options(MachineState *machine) 996 { 997 ccw_machine_5_0_instance_options(machine); 998 } 999 1000 static void ccw_machine_4_2_class_options(MachineClass *mc) 1001 { 1002 ccw_machine_5_0_class_options(mc); 1003 mc->fixup_ram_size = s390_fixup_ram_size; 1004 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 1005 } 1006 DEFINE_CCW_MACHINE(4_2, "4.2", false); 1007 1008 static void ccw_machine_4_1_instance_options(MachineState *machine) 1009 { 1010 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 1011 ccw_machine_4_2_instance_options(machine); 1012 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 1013 } 1014 1015 static void ccw_machine_4_1_class_options(MachineClass *mc) 1016 { 1017 ccw_machine_4_2_class_options(mc); 1018 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 1019 } 1020 DEFINE_CCW_MACHINE(4_1, "4.1", false); 1021 1022 static void ccw_machine_4_0_instance_options(MachineState *machine) 1023 { 1024 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 1025 ccw_machine_4_1_instance_options(machine); 1026 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1027 } 1028 1029 static void ccw_machine_4_0_class_options(MachineClass *mc) 1030 { 1031 ccw_machine_4_1_class_options(mc); 1032 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 1033 } 1034 DEFINE_CCW_MACHINE(4_0, "4.0", false); 1035 1036 static void ccw_machine_3_1_instance_options(MachineState *machine) 1037 { 1038 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 1039 ccw_machine_4_0_instance_options(machine); 1040 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 1041 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 1042 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1043 } 1044 1045 static void ccw_machine_3_1_class_options(MachineClass *mc) 1046 { 1047 ccw_machine_4_0_class_options(mc); 1048 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 1049 } 1050 DEFINE_CCW_MACHINE(3_1, "3.1", false); 1051 1052 static void ccw_machine_3_0_instance_options(MachineState *machine) 1053 { 1054 ccw_machine_3_1_instance_options(machine); 1055 } 1056 1057 static void ccw_machine_3_0_class_options(MachineClass *mc) 1058 { 1059 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1060 1061 s390mc->hpage_1m_allowed = false; 1062 ccw_machine_3_1_class_options(mc); 1063 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 1064 } 1065 DEFINE_CCW_MACHINE(3_0, "3.0", false); 1066 1067 static void ccw_machine_2_12_instance_options(MachineState *machine) 1068 { 1069 ccw_machine_3_0_instance_options(machine); 1070 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 1071 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 1072 } 1073 1074 static void ccw_machine_2_12_class_options(MachineClass *mc) 1075 { 1076 ccw_machine_3_0_class_options(mc); 1077 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 1078 } 1079 DEFINE_CCW_MACHINE(2_12, "2.12", false); 1080 1081 static void ccw_machine_2_11_instance_options(MachineState *machine) 1082 { 1083 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 1084 ccw_machine_2_12_instance_options(machine); 1085 1086 /* before 2.12 we emulated the very first z900 */ 1087 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 1088 } 1089 1090 static void ccw_machine_2_11_class_options(MachineClass *mc) 1091 { 1092 static GlobalProperty compat[] = { 1093 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 1094 }; 1095 1096 ccw_machine_2_12_class_options(mc); 1097 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 1098 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1099 } 1100 DEFINE_CCW_MACHINE(2_11, "2.11", false); 1101 1102 static void ccw_machine_2_10_instance_options(MachineState *machine) 1103 { 1104 ccw_machine_2_11_instance_options(machine); 1105 } 1106 1107 static void ccw_machine_2_10_class_options(MachineClass *mc) 1108 { 1109 ccw_machine_2_11_class_options(mc); 1110 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 1111 } 1112 DEFINE_CCW_MACHINE(2_10, "2.10", false); 1113 1114 static void ccw_machine_2_9_instance_options(MachineState *machine) 1115 { 1116 ccw_machine_2_10_instance_options(machine); 1117 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 1118 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 1119 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 1120 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 1121 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 1122 } 1123 1124 static void ccw_machine_2_9_class_options(MachineClass *mc) 1125 { 1126 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1127 static GlobalProperty compat[] = { 1128 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 1129 }; 1130 1131 ccw_machine_2_10_class_options(mc); 1132 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 1133 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1134 s390mc->css_migration_enabled = false; 1135 } 1136 DEFINE_CCW_MACHINE(2_9, "2.9", false); 1137 1138 static void ccw_machine_2_8_instance_options(MachineState *machine) 1139 { 1140 ccw_machine_2_9_instance_options(machine); 1141 } 1142 1143 static void ccw_machine_2_8_class_options(MachineClass *mc) 1144 { 1145 static GlobalProperty compat[] = { 1146 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 1147 }; 1148 1149 ccw_machine_2_9_class_options(mc); 1150 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 1151 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1152 } 1153 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1154 1155 static void ccw_machine_2_7_instance_options(MachineState *machine) 1156 { 1157 ccw_machine_2_8_instance_options(machine); 1158 } 1159 1160 static void ccw_machine_2_7_class_options(MachineClass *mc) 1161 { 1162 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1163 1164 s390mc->cpu_model_allowed = false; 1165 ccw_machine_2_8_class_options(mc); 1166 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1167 } 1168 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1169 1170 static void ccw_machine_2_6_instance_options(MachineState *machine) 1171 { 1172 ccw_machine_2_7_instance_options(machine); 1173 } 1174 1175 static void ccw_machine_2_6_class_options(MachineClass *mc) 1176 { 1177 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1178 static GlobalProperty compat[] = { 1179 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1180 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1181 }; 1182 1183 s390mc->ri_allowed = false; 1184 ccw_machine_2_7_class_options(mc); 1185 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1186 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1187 } 1188 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1189 1190 static void ccw_machine_2_5_instance_options(MachineState *machine) 1191 { 1192 ccw_machine_2_6_instance_options(machine); 1193 } 1194 1195 static void ccw_machine_2_5_class_options(MachineClass *mc) 1196 { 1197 ccw_machine_2_6_class_options(mc); 1198 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1199 } 1200 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1201 1202 static void ccw_machine_2_4_instance_options(MachineState *machine) 1203 { 1204 ccw_machine_2_5_instance_options(machine); 1205 } 1206 1207 static void ccw_machine_2_4_class_options(MachineClass *mc) 1208 { 1209 static GlobalProperty compat[] = { 1210 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1211 { "virtio-blk-ccw", "max_revision", "0", }, 1212 { "virtio-balloon-ccw", "max_revision", "0", }, 1213 { "virtio-serial-ccw", "max_revision", "0", }, 1214 { "virtio-9p-ccw", "max_revision", "0", }, 1215 { "virtio-rng-ccw", "max_revision", "0", }, 1216 { "virtio-net-ccw", "max_revision", "0", }, 1217 { "virtio-scsi-ccw", "max_revision", "0", }, 1218 { "vhost-scsi-ccw", "max_revision", "0", }, 1219 }; 1220 1221 ccw_machine_2_5_class_options(mc); 1222 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1223 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1224 } 1225 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1226 1227 static void ccw_machine_register_types(void) 1228 { 1229 type_register_static(&ccw_machine_info); 1230 } 1231 1232 type_init(ccw_machine_register_types) 1233