1 /* 2 * virtio ccw machine 3 * 4 * Copyright 2012, 2020 IBM Corp. 5 * Copyright (c) 2009 Alexander Graf <agraf@suse.de> 6 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 7 * Janosch Frank <frankja@linux.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or (at 10 * your option) any later version. See the COPYING file in the top-level 11 * directory. 12 */ 13 14 #include "qemu/osdep.h" 15 #include "qapi/error.h" 16 #include "exec/ram_addr.h" 17 #include "hw/s390x/s390-virtio-hcall.h" 18 #include "hw/s390x/sclp.h" 19 #include "hw/s390x/s390_flic.h" 20 #include "hw/s390x/ioinst.h" 21 #include "hw/s390x/css.h" 22 #include "virtio-ccw.h" 23 #include "qemu/config-file.h" 24 #include "qemu/ctype.h" 25 #include "qemu/error-report.h" 26 #include "qemu/option.h" 27 #include "qemu/qemu-print.h" 28 #include "qemu/units.h" 29 #include "hw/s390x/s390-pci-bus.h" 30 #include "sysemu/reset.h" 31 #include "hw/s390x/storage-keys.h" 32 #include "hw/s390x/storage-attributes.h" 33 #include "hw/s390x/event-facility.h" 34 #include "ipl.h" 35 #include "hw/s390x/s390-virtio-ccw.h" 36 #include "hw/s390x/css-bridge.h" 37 #include "hw/s390x/ap-bridge.h" 38 #include "migration/register.h" 39 #include "cpu_models.h" 40 #include "hw/nmi.h" 41 #include "hw/qdev-properties.h" 42 #include "hw/s390x/tod.h" 43 #include "sysemu/sysemu.h" 44 #include "hw/s390x/pv.h" 45 #include "migration/blocker.h" 46 #include "qapi/visitor.h" 47 48 static Error *pv_mig_blocker; 49 50 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 51 { 52 static MachineState *ms; 53 54 if (!ms) { 55 ms = MACHINE(qdev_get_machine()); 56 g_assert(ms->possible_cpus); 57 } 58 59 /* CPU address corresponds to the core_id and the index */ 60 if (cpu_addr >= ms->possible_cpus->len) { 61 return NULL; 62 } 63 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 64 } 65 66 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 67 Error **errp) 68 { 69 S390CPU *cpu = S390_CPU(object_new(typename)); 70 S390CPU *ret = NULL; 71 72 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) { 73 goto out; 74 } 75 if (!qdev_realize(DEVICE(cpu), NULL, errp)) { 76 goto out; 77 } 78 ret = cpu; 79 80 out: 81 object_unref(OBJECT(cpu)); 82 return ret; 83 } 84 85 static void s390_init_cpus(MachineState *machine) 86 { 87 MachineClass *mc = MACHINE_GET_CLASS(machine); 88 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 89 int i; 90 91 if (machine->smp.threads > s390mc->max_threads) { 92 error_report("S390 does not support more than %d threads.", 93 s390mc->max_threads); 94 exit(1); 95 } 96 97 /* initialize possible_cpus */ 98 mc->possible_cpu_arch_ids(machine); 99 100 for (i = 0; i < machine->smp.cpus; i++) { 101 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 102 } 103 } 104 105 static const char *const reset_dev_types[] = { 106 TYPE_VIRTUAL_CSS_BRIDGE, 107 "s390-sclp-event-facility", 108 "s390-flic", 109 "diag288", 110 TYPE_S390_PCI_HOST_BRIDGE, 111 }; 112 113 static void subsystem_reset(void) 114 { 115 DeviceState *dev; 116 int i; 117 118 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 119 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 120 if (dev) { 121 qdev_reset_all(dev); 122 } 123 } 124 } 125 126 static int virtio_ccw_hcall_notify(const uint64_t *args) 127 { 128 uint64_t subch_id = args[0]; 129 uint64_t queue = args[1]; 130 SubchDev *sch; 131 int cssid, ssid, schid, m; 132 133 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 134 return -EINVAL; 135 } 136 sch = css_find_subch(m, cssid, ssid, schid); 137 if (!sch || !css_subch_visible(sch)) { 138 return -EINVAL; 139 } 140 if (queue >= VIRTIO_QUEUE_MAX) { 141 return -EINVAL; 142 } 143 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 144 return 0; 145 146 } 147 148 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 149 { 150 uint64_t mem = args[0]; 151 MachineState *ms = MACHINE(qdev_get_machine()); 152 153 if (mem < ms->ram_size) { 154 /* Early printk */ 155 return 0; 156 } 157 return -EINVAL; 158 } 159 160 static void virtio_ccw_register_hcalls(void) 161 { 162 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 163 virtio_ccw_hcall_notify); 164 /* Tolerate early printk. */ 165 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 166 virtio_ccw_hcall_early_printk); 167 } 168 169 static void s390_memory_init(MemoryRegion *ram) 170 { 171 MemoryRegion *sysmem = get_system_memory(); 172 173 /* allocate RAM for core */ 174 memory_region_add_subregion(sysmem, 0, ram); 175 176 /* 177 * Configure the maximum page size. As no memory devices were created 178 * yet, this is the page size of initial memory only. 179 */ 180 s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal); 181 /* Initialize storage key device */ 182 s390_skeys_init(); 183 /* Initialize storage attributes device */ 184 s390_stattrib_init(); 185 } 186 187 static void s390_init_ipl_dev(const char *kernel_filename, 188 const char *kernel_cmdline, 189 const char *initrd_filename, const char *firmware, 190 const char *netboot_fw, bool enforce_bios) 191 { 192 Object *new = object_new(TYPE_S390_IPL); 193 DeviceState *dev = DEVICE(new); 194 char *netboot_fw_prop; 195 196 if (kernel_filename) { 197 qdev_prop_set_string(dev, "kernel", kernel_filename); 198 } 199 if (initrd_filename) { 200 qdev_prop_set_string(dev, "initrd", initrd_filename); 201 } 202 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 203 qdev_prop_set_string(dev, "firmware", firmware); 204 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 205 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 206 if (!strlen(netboot_fw_prop)) { 207 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 208 } 209 g_free(netboot_fw_prop); 210 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 211 new); 212 object_unref(new); 213 qdev_realize(dev, NULL, &error_fatal); 214 } 215 216 static void s390_create_virtio_net(BusState *bus, const char *name) 217 { 218 int i; 219 220 for (i = 0; i < nb_nics; i++) { 221 NICInfo *nd = &nd_table[i]; 222 DeviceState *dev; 223 224 if (!nd->model) { 225 nd->model = g_strdup("virtio"); 226 } 227 228 qemu_check_nic_model(nd, "virtio"); 229 230 dev = qdev_new(name); 231 qdev_set_nic_properties(dev, nd); 232 qdev_realize_and_unref(dev, bus, &error_fatal); 233 } 234 } 235 236 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 237 { 238 DeviceState *dev; 239 240 dev = qdev_new(type); 241 qdev_prop_set_chr(dev, "chardev", chardev); 242 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 243 } 244 245 static void ccw_init(MachineState *machine) 246 { 247 int ret; 248 VirtualCssBus *css_bus; 249 DeviceState *dev; 250 251 s390_sclp_init(); 252 /* init memory + setup max page size. Required for the CPU model */ 253 s390_memory_init(machine->ram); 254 255 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 256 s390_init_cpus(machine); 257 258 /* Need CPU model to be determined before we can set up PV */ 259 s390_pv_init(machine->cgs, &error_fatal); 260 261 s390_flic_init(); 262 263 /* init the SIGP facility */ 264 s390_init_sigp(); 265 266 /* create AP bridge and bus(es) */ 267 s390_init_ap(); 268 269 /* get a BUS */ 270 css_bus = virtual_css_bus_init(); 271 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 272 machine->initrd_filename, 273 machine->firmware ?: "s390-ccw.img", 274 "s390-netboot.img", true); 275 276 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 277 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 278 OBJECT(dev)); 279 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 280 281 /* register hypercalls */ 282 virtio_ccw_register_hcalls(); 283 284 s390_enable_css_support(s390_cpu_addr2state(0)); 285 286 ret = css_create_css_image(VIRTUAL_CSSID, true); 287 288 assert(ret == 0); 289 if (css_migration_enabled()) { 290 css_register_vmstate(); 291 } 292 293 /* Create VirtIO network adapters */ 294 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 295 296 /* init consoles */ 297 if (serial_hd(0)) { 298 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 299 } 300 if (serial_hd(1)) { 301 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 302 } 303 304 /* init the TOD clock */ 305 s390_init_tod(); 306 } 307 308 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 309 DeviceState *dev, Error **errp) 310 { 311 MachineState *ms = MACHINE(hotplug_dev); 312 S390CPU *cpu = S390_CPU(dev); 313 314 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 315 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 316 317 if (dev->hotplugged) { 318 raise_irq_cpu_hotplug(); 319 } 320 } 321 322 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 323 { 324 S390CPU *cpu = S390_CPU(cs); 325 326 s390_ipl_prepare_cpu(cpu); 327 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 328 } 329 330 static void s390_machine_unprotect(S390CcwMachineState *ms) 331 { 332 s390_pv_vm_disable(); 333 ms->pv = false; 334 migrate_del_blocker(pv_mig_blocker); 335 error_free_or_abort(&pv_mig_blocker); 336 ram_block_discard_disable(false); 337 } 338 339 static int s390_machine_protect(S390CcwMachineState *ms) 340 { 341 Error *local_err = NULL; 342 int rc; 343 344 /* 345 * Discarding of memory in RAM blocks does not work as expected with 346 * protected VMs. Sharing and unsharing pages would be required. Disable 347 * it for now, until until we have a solution to make at least Linux 348 * guests either support it (e.g., virtio-balloon) or fail gracefully. 349 */ 350 rc = ram_block_discard_disable(true); 351 if (rc) { 352 error_report("protected VMs: cannot disable RAM discard"); 353 return rc; 354 } 355 356 error_setg(&pv_mig_blocker, 357 "protected VMs are currently not migrateable."); 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 * Susbsystem 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 * Susbsystem 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 inline bool machine_get_zpcii_disable(Object *obj, Error **errp) 631 { 632 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 633 634 return ms->zpcii_disable; 635 } 636 637 static inline void machine_set_zpcii_disable(Object *obj, bool value, 638 Error **errp) 639 { 640 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 641 642 ms->zpcii_disable = value; 643 } 644 645 static S390CcwMachineClass *current_mc; 646 647 /* 648 * Get the class of the s390-ccw-virtio machine that is currently in use. 649 * Note: libvirt is using the "none" machine to probe for the features of the 650 * host CPU, so in case this is called with the "none" machine, the function 651 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 652 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 653 * below return the correct default value for the "none" machine. 654 * 655 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 656 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 657 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 658 * CPU initialization and s390_has_feat() later should be sufficient. 659 */ 660 static S390CcwMachineClass *get_machine_class(void) 661 { 662 if (unlikely(!current_mc)) { 663 /* 664 * No s390 ccw machine was instantiated, we are likely to 665 * be called for the 'none' machine. The properties will 666 * have their after-initialization values. 667 */ 668 current_mc = S390_CCW_MACHINE_CLASS( 669 object_class_by_name(TYPE_S390_CCW_MACHINE)); 670 } 671 return current_mc; 672 } 673 674 bool ri_allowed(void) 675 { 676 return get_machine_class()->ri_allowed; 677 } 678 679 bool cpu_model_allowed(void) 680 { 681 return get_machine_class()->cpu_model_allowed; 682 } 683 684 bool hpage_1m_allowed(void) 685 { 686 return get_machine_class()->hpage_1m_allowed; 687 } 688 689 static void machine_get_loadparm(Object *obj, Visitor *v, 690 const char *name, void *opaque, 691 Error **errp) 692 { 693 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 694 char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 695 696 visit_type_str(v, name, &str, errp); 697 g_free(str); 698 } 699 700 static void machine_set_loadparm(Object *obj, Visitor *v, 701 const char *name, void *opaque, 702 Error **errp) 703 { 704 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 705 char *val; 706 int i; 707 708 if (!visit_type_str(v, name, &val, errp)) { 709 return; 710 } 711 712 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 713 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 714 715 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 716 (c == ' ')) { 717 ms->loadparm[i] = c; 718 } else { 719 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 720 c, c); 721 return; 722 } 723 } 724 725 for (; i < sizeof(ms->loadparm); i++) { 726 ms->loadparm[i] = ' '; /* pad right with spaces */ 727 } 728 } 729 730 static void ccw_machine_class_init(ObjectClass *oc, void *data) 731 { 732 MachineClass *mc = MACHINE_CLASS(oc); 733 NMIClass *nc = NMI_CLASS(oc); 734 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 735 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 736 737 s390mc->ri_allowed = true; 738 s390mc->cpu_model_allowed = true; 739 s390mc->css_migration_enabled = true; 740 s390mc->hpage_1m_allowed = true; 741 s390mc->max_threads = 1; 742 mc->init = ccw_init; 743 mc->reset = s390_machine_reset; 744 mc->block_default_type = IF_VIRTIO; 745 mc->no_cdrom = 1; 746 mc->no_floppy = 1; 747 mc->no_parallel = 1; 748 mc->no_sdcard = 1; 749 mc->max_cpus = S390_MAX_CPUS; 750 mc->has_hotpluggable_cpus = true; 751 assert(!mc->get_hotplug_handler); 752 mc->get_hotplug_handler = s390_get_hotplug_handler; 753 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 754 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 755 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 756 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 757 hc->plug = s390_machine_device_plug; 758 hc->unplug_request = s390_machine_device_unplug_request; 759 nc->nmi_monitor_handler = s390_nmi; 760 mc->default_ram_id = "s390.ram"; 761 762 object_class_property_add_bool(oc, "aes-key-wrap", 763 machine_get_aes_key_wrap, 764 machine_set_aes_key_wrap); 765 object_class_property_set_description(oc, "aes-key-wrap", 766 "enable/disable AES key wrapping using the CPACF wrapping key"); 767 768 object_class_property_add_bool(oc, "dea-key-wrap", 769 machine_get_dea_key_wrap, 770 machine_set_dea_key_wrap); 771 object_class_property_set_description(oc, "dea-key-wrap", 772 "enable/disable DEA key wrapping using the CPACF wrapping key"); 773 774 object_class_property_add(oc, "loadparm", "loadparm", 775 machine_get_loadparm, machine_set_loadparm, 776 NULL, NULL); 777 object_class_property_set_description(oc, "loadparm", 778 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 779 " to upper case) to pass to machine loader, boot manager," 780 " and guest kernel"); 781 782 object_class_property_add_bool(oc, "zpcii-disable", 783 machine_get_zpcii_disable, 784 machine_set_zpcii_disable); 785 object_class_property_set_description(oc, "zpcii-disable", 786 "disable zPCI interpretation facilties"); 787 } 788 789 static inline void s390_machine_initfn(Object *obj) 790 { 791 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 792 793 ms->aes_key_wrap = true; 794 ms->dea_key_wrap = true; 795 ms->zpcii_disable = false; 796 } 797 798 static const TypeInfo ccw_machine_info = { 799 .name = TYPE_S390_CCW_MACHINE, 800 .parent = TYPE_MACHINE, 801 .abstract = true, 802 .instance_size = sizeof(S390CcwMachineState), 803 .instance_init = s390_machine_initfn, 804 .class_size = sizeof(S390CcwMachineClass), 805 .class_init = ccw_machine_class_init, 806 .interfaces = (InterfaceInfo[]) { 807 { TYPE_NMI }, 808 { TYPE_HOTPLUG_HANDLER}, 809 { } 810 }, 811 }; 812 813 bool css_migration_enabled(void) 814 { 815 return get_machine_class()->css_migration_enabled; 816 } 817 818 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 819 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 820 void *data) \ 821 { \ 822 MachineClass *mc = MACHINE_CLASS(oc); \ 823 ccw_machine_##suffix##_class_options(mc); \ 824 mc->desc = "Virtual s390x machine (version " verstr ")"; \ 825 if (latest) { \ 826 mc->alias = "s390-ccw-virtio"; \ 827 mc->is_default = true; \ 828 } \ 829 } \ 830 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 831 { \ 832 MachineState *machine = MACHINE(obj); \ 833 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 834 ccw_machine_##suffix##_instance_options(machine); \ 835 } \ 836 static const TypeInfo ccw_machine_##suffix##_info = { \ 837 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 838 .parent = TYPE_S390_CCW_MACHINE, \ 839 .class_init = ccw_machine_##suffix##_class_init, \ 840 .instance_init = ccw_machine_##suffix##_instance_init, \ 841 }; \ 842 static void ccw_machine_register_##suffix(void) \ 843 { \ 844 type_register_static(&ccw_machine_##suffix##_info); \ 845 } \ 846 type_init(ccw_machine_register_##suffix) 847 848 static void ccw_machine_7_2_instance_options(MachineState *machine) 849 { 850 } 851 852 static void ccw_machine_7_2_class_options(MachineClass *mc) 853 { 854 } 855 DEFINE_CCW_MACHINE(7_2, "7.2", true); 856 857 static void ccw_machine_7_1_instance_options(MachineState *machine) 858 { 859 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 }; 860 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 861 862 ccw_machine_7_2_instance_options(machine); 863 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE); 864 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 865 ms->zpcii_disable = true; 866 } 867 868 static void ccw_machine_7_1_class_options(MachineClass *mc) 869 { 870 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 871 872 ccw_machine_7_2_class_options(mc); 873 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 874 s390mc->max_threads = S390_MAX_CPUS; 875 } 876 DEFINE_CCW_MACHINE(7_1, "7.1", false); 877 878 static void ccw_machine_7_0_instance_options(MachineState *machine) 879 { 880 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 }; 881 882 ccw_machine_7_1_instance_options(machine); 883 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 884 } 885 886 static void ccw_machine_7_0_class_options(MachineClass *mc) 887 { 888 ccw_machine_7_1_class_options(mc); 889 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 890 } 891 DEFINE_CCW_MACHINE(7_0, "7.0", false); 892 893 static void ccw_machine_6_2_instance_options(MachineState *machine) 894 { 895 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 }; 896 897 ccw_machine_7_0_instance_options(machine); 898 s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat); 899 } 900 901 static void ccw_machine_6_2_class_options(MachineClass *mc) 902 { 903 ccw_machine_7_0_class_options(mc); 904 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 905 } 906 DEFINE_CCW_MACHINE(6_2, "6.2", false); 907 908 static void ccw_machine_6_1_instance_options(MachineState *machine) 909 { 910 ccw_machine_6_2_instance_options(machine); 911 s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA); 912 s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2); 913 s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH); 914 s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP); 915 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI); 916 } 917 918 static void ccw_machine_6_1_class_options(MachineClass *mc) 919 { 920 ccw_machine_6_2_class_options(mc); 921 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 922 mc->smp_props.prefer_sockets = true; 923 } 924 DEFINE_CCW_MACHINE(6_1, "6.1", false); 925 926 static void ccw_machine_6_0_instance_options(MachineState *machine) 927 { 928 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 }; 929 930 ccw_machine_6_1_instance_options(machine); 931 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 932 } 933 934 static void ccw_machine_6_0_class_options(MachineClass *mc) 935 { 936 ccw_machine_6_1_class_options(mc); 937 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 938 } 939 DEFINE_CCW_MACHINE(6_0, "6.0", false); 940 941 static void ccw_machine_5_2_instance_options(MachineState *machine) 942 { 943 ccw_machine_6_0_instance_options(machine); 944 } 945 946 static void ccw_machine_5_2_class_options(MachineClass *mc) 947 { 948 ccw_machine_6_0_class_options(mc); 949 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 950 } 951 DEFINE_CCW_MACHINE(5_2, "5.2", false); 952 953 static void ccw_machine_5_1_instance_options(MachineState *machine) 954 { 955 ccw_machine_5_2_instance_options(machine); 956 } 957 958 static void ccw_machine_5_1_class_options(MachineClass *mc) 959 { 960 ccw_machine_5_2_class_options(mc); 961 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 962 } 963 DEFINE_CCW_MACHINE(5_1, "5.1", false); 964 965 static void ccw_machine_5_0_instance_options(MachineState *machine) 966 { 967 ccw_machine_5_1_instance_options(machine); 968 } 969 970 static void ccw_machine_5_0_class_options(MachineClass *mc) 971 { 972 ccw_machine_5_1_class_options(mc); 973 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 974 } 975 DEFINE_CCW_MACHINE(5_0, "5.0", false); 976 977 static void ccw_machine_4_2_instance_options(MachineState *machine) 978 { 979 ccw_machine_5_0_instance_options(machine); 980 } 981 982 static void ccw_machine_4_2_class_options(MachineClass *mc) 983 { 984 ccw_machine_5_0_class_options(mc); 985 mc->fixup_ram_size = s390_fixup_ram_size; 986 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 987 } 988 DEFINE_CCW_MACHINE(4_2, "4.2", false); 989 990 static void ccw_machine_4_1_instance_options(MachineState *machine) 991 { 992 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 993 ccw_machine_4_2_instance_options(machine); 994 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 995 } 996 997 static void ccw_machine_4_1_class_options(MachineClass *mc) 998 { 999 ccw_machine_4_2_class_options(mc); 1000 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 1001 } 1002 DEFINE_CCW_MACHINE(4_1, "4.1", false); 1003 1004 static void ccw_machine_4_0_instance_options(MachineState *machine) 1005 { 1006 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 1007 ccw_machine_4_1_instance_options(machine); 1008 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1009 } 1010 1011 static void ccw_machine_4_0_class_options(MachineClass *mc) 1012 { 1013 ccw_machine_4_1_class_options(mc); 1014 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 1015 } 1016 DEFINE_CCW_MACHINE(4_0, "4.0", false); 1017 1018 static void ccw_machine_3_1_instance_options(MachineState *machine) 1019 { 1020 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 1021 ccw_machine_4_0_instance_options(machine); 1022 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 1023 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 1024 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1025 } 1026 1027 static void ccw_machine_3_1_class_options(MachineClass *mc) 1028 { 1029 ccw_machine_4_0_class_options(mc); 1030 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 1031 } 1032 DEFINE_CCW_MACHINE(3_1, "3.1", false); 1033 1034 static void ccw_machine_3_0_instance_options(MachineState *machine) 1035 { 1036 ccw_machine_3_1_instance_options(machine); 1037 } 1038 1039 static void ccw_machine_3_0_class_options(MachineClass *mc) 1040 { 1041 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1042 1043 s390mc->hpage_1m_allowed = false; 1044 ccw_machine_3_1_class_options(mc); 1045 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 1046 } 1047 DEFINE_CCW_MACHINE(3_0, "3.0", false); 1048 1049 static void ccw_machine_2_12_instance_options(MachineState *machine) 1050 { 1051 ccw_machine_3_0_instance_options(machine); 1052 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 1053 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 1054 } 1055 1056 static void ccw_machine_2_12_class_options(MachineClass *mc) 1057 { 1058 ccw_machine_3_0_class_options(mc); 1059 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 1060 } 1061 DEFINE_CCW_MACHINE(2_12, "2.12", false); 1062 1063 static void ccw_machine_2_11_instance_options(MachineState *machine) 1064 { 1065 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 1066 ccw_machine_2_12_instance_options(machine); 1067 1068 /* before 2.12 we emulated the very first z900 */ 1069 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 1070 } 1071 1072 static void ccw_machine_2_11_class_options(MachineClass *mc) 1073 { 1074 static GlobalProperty compat[] = { 1075 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 1076 }; 1077 1078 ccw_machine_2_12_class_options(mc); 1079 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 1080 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1081 } 1082 DEFINE_CCW_MACHINE(2_11, "2.11", false); 1083 1084 static void ccw_machine_2_10_instance_options(MachineState *machine) 1085 { 1086 ccw_machine_2_11_instance_options(machine); 1087 } 1088 1089 static void ccw_machine_2_10_class_options(MachineClass *mc) 1090 { 1091 ccw_machine_2_11_class_options(mc); 1092 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 1093 } 1094 DEFINE_CCW_MACHINE(2_10, "2.10", false); 1095 1096 static void ccw_machine_2_9_instance_options(MachineState *machine) 1097 { 1098 ccw_machine_2_10_instance_options(machine); 1099 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 1100 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 1101 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 1102 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 1103 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 1104 } 1105 1106 static void ccw_machine_2_9_class_options(MachineClass *mc) 1107 { 1108 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1109 static GlobalProperty compat[] = { 1110 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 1111 }; 1112 1113 ccw_machine_2_10_class_options(mc); 1114 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 1115 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1116 s390mc->css_migration_enabled = false; 1117 } 1118 DEFINE_CCW_MACHINE(2_9, "2.9", false); 1119 1120 static void ccw_machine_2_8_instance_options(MachineState *machine) 1121 { 1122 ccw_machine_2_9_instance_options(machine); 1123 } 1124 1125 static void ccw_machine_2_8_class_options(MachineClass *mc) 1126 { 1127 static GlobalProperty compat[] = { 1128 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 1129 }; 1130 1131 ccw_machine_2_9_class_options(mc); 1132 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 1133 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1134 } 1135 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1136 1137 static void ccw_machine_2_7_instance_options(MachineState *machine) 1138 { 1139 ccw_machine_2_8_instance_options(machine); 1140 } 1141 1142 static void ccw_machine_2_7_class_options(MachineClass *mc) 1143 { 1144 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1145 1146 s390mc->cpu_model_allowed = false; 1147 ccw_machine_2_8_class_options(mc); 1148 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1149 } 1150 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1151 1152 static void ccw_machine_2_6_instance_options(MachineState *machine) 1153 { 1154 ccw_machine_2_7_instance_options(machine); 1155 } 1156 1157 static void ccw_machine_2_6_class_options(MachineClass *mc) 1158 { 1159 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1160 static GlobalProperty compat[] = { 1161 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1162 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1163 }; 1164 1165 s390mc->ri_allowed = false; 1166 ccw_machine_2_7_class_options(mc); 1167 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1168 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1169 } 1170 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1171 1172 static void ccw_machine_2_5_instance_options(MachineState *machine) 1173 { 1174 ccw_machine_2_6_instance_options(machine); 1175 } 1176 1177 static void ccw_machine_2_5_class_options(MachineClass *mc) 1178 { 1179 ccw_machine_2_6_class_options(mc); 1180 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1181 } 1182 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1183 1184 static void ccw_machine_2_4_instance_options(MachineState *machine) 1185 { 1186 ccw_machine_2_5_instance_options(machine); 1187 } 1188 1189 static void ccw_machine_2_4_class_options(MachineClass *mc) 1190 { 1191 static GlobalProperty compat[] = { 1192 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1193 { "virtio-blk-ccw", "max_revision", "0", }, 1194 { "virtio-balloon-ccw", "max_revision", "0", }, 1195 { "virtio-serial-ccw", "max_revision", "0", }, 1196 { "virtio-9p-ccw", "max_revision", "0", }, 1197 { "virtio-rng-ccw", "max_revision", "0", }, 1198 { "virtio-net-ccw", "max_revision", "0", }, 1199 { "virtio-scsi-ccw", "max_revision", "0", }, 1200 { "vhost-scsi-ccw", "max_revision", "0", }, 1201 }; 1202 1203 ccw_machine_2_5_class_options(mc); 1204 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1205 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1206 } 1207 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1208 1209 static void ccw_machine_register_types(void) 1210 { 1211 type_register_static(&ccw_machine_info); 1212 } 1213 1214 type_init(ccw_machine_register_types) 1215