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 TYPE_AP_BRIDGE, 113 }; 114 115 static void subsystem_reset(void) 116 { 117 DeviceState *dev; 118 int i; 119 120 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 121 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 122 if (dev) { 123 device_cold_reset(dev); 124 } 125 } 126 } 127 128 static int virtio_ccw_hcall_notify(const uint64_t *args) 129 { 130 uint64_t subch_id = args[0]; 131 uint64_t queue = args[1]; 132 SubchDev *sch; 133 int cssid, ssid, schid, m; 134 135 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 136 return -EINVAL; 137 } 138 sch = css_find_subch(m, cssid, ssid, schid); 139 if (!sch || !css_subch_visible(sch)) { 140 return -EINVAL; 141 } 142 if (queue >= VIRTIO_QUEUE_MAX) { 143 return -EINVAL; 144 } 145 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 146 return 0; 147 148 } 149 150 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 151 { 152 uint64_t mem = args[0]; 153 MachineState *ms = MACHINE(qdev_get_machine()); 154 155 if (mem < ms->ram_size) { 156 /* Early printk */ 157 return 0; 158 } 159 return -EINVAL; 160 } 161 162 static void virtio_ccw_register_hcalls(void) 163 { 164 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 165 virtio_ccw_hcall_notify); 166 /* Tolerate early printk. */ 167 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 168 virtio_ccw_hcall_early_printk); 169 } 170 171 static void s390_memory_init(MemoryRegion *ram) 172 { 173 MemoryRegion *sysmem = get_system_memory(); 174 175 /* allocate RAM for core */ 176 memory_region_add_subregion(sysmem, 0, ram); 177 178 /* 179 * Configure the maximum page size. As no memory devices were created 180 * yet, this is the page size of initial memory only. 181 */ 182 s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal); 183 /* Initialize storage key device */ 184 s390_skeys_init(); 185 /* Initialize storage attributes device */ 186 s390_stattrib_init(); 187 } 188 189 static void s390_init_ipl_dev(const char *kernel_filename, 190 const char *kernel_cmdline, 191 const char *initrd_filename, const char *firmware, 192 const char *netboot_fw, bool enforce_bios) 193 { 194 Object *new = object_new(TYPE_S390_IPL); 195 DeviceState *dev = DEVICE(new); 196 char *netboot_fw_prop; 197 198 if (kernel_filename) { 199 qdev_prop_set_string(dev, "kernel", kernel_filename); 200 } 201 if (initrd_filename) { 202 qdev_prop_set_string(dev, "initrd", initrd_filename); 203 } 204 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 205 qdev_prop_set_string(dev, "firmware", firmware); 206 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 207 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 208 if (!strlen(netboot_fw_prop)) { 209 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 210 } 211 g_free(netboot_fw_prop); 212 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 213 new); 214 object_unref(new); 215 qdev_realize(dev, NULL, &error_fatal); 216 } 217 218 static void s390_create_virtio_net(BusState *bus, const char *name) 219 { 220 int i; 221 222 for (i = 0; i < nb_nics; i++) { 223 NICInfo *nd = &nd_table[i]; 224 DeviceState *dev; 225 226 qemu_check_nic_model(nd, "virtio"); 227 228 dev = qdev_new(name); 229 qdev_set_nic_properties(dev, nd); 230 qdev_realize_and_unref(dev, bus, &error_fatal); 231 } 232 } 233 234 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 235 { 236 DeviceState *dev; 237 238 dev = qdev_new(type); 239 qdev_prop_set_chr(dev, "chardev", chardev); 240 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 241 } 242 243 static void ccw_init(MachineState *machine) 244 { 245 MachineClass *mc = MACHINE_GET_CLASS(machine); 246 int ret; 247 VirtualCssBus *css_bus; 248 DeviceState *dev; 249 250 s390_sclp_init(); 251 /* init memory + setup max page size. Required for the CPU model */ 252 s390_memory_init(machine->ram); 253 254 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 255 s390_init_cpus(machine); 256 257 /* Need CPU model to be determined before we can set up PV */ 258 s390_pv_init(machine->cgs, &error_fatal); 259 260 s390_flic_init(); 261 262 /* init the SIGP facility */ 263 s390_init_sigp(); 264 265 /* create AP bridge and bus(es) */ 266 s390_init_ap(); 267 268 /* get a BUS */ 269 css_bus = virtual_css_bus_init(); 270 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 271 machine->initrd_filename, 272 machine->firmware ?: "s390-ccw.img", 273 "s390-netboot.img", true); 274 275 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 276 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 277 OBJECT(dev)); 278 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 279 280 /* register hypercalls */ 281 virtio_ccw_register_hcalls(); 282 283 s390_enable_css_support(s390_cpu_addr2state(0)); 284 285 ret = css_create_css_image(VIRTUAL_CSSID, true); 286 287 assert(ret == 0); 288 if (css_migration_enabled()) { 289 css_register_vmstate(); 290 } 291 292 /* Create VirtIO network adapters */ 293 s390_create_virtio_net(BUS(css_bus), mc->default_nic); 294 295 /* init consoles */ 296 if (serial_hd(0)) { 297 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 298 } 299 if (serial_hd(1)) { 300 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 301 } 302 303 /* init the TOD clock */ 304 s390_init_tod(); 305 } 306 307 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 308 DeviceState *dev, Error **errp) 309 { 310 MachineState *ms = MACHINE(hotplug_dev); 311 S390CPU *cpu = S390_CPU(dev); 312 313 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 314 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 315 316 if (dev->hotplugged) { 317 raise_irq_cpu_hotplug(); 318 } 319 } 320 321 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 322 { 323 S390CPU *cpu = S390_CPU(cs); 324 325 s390_ipl_prepare_cpu(cpu); 326 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 327 } 328 329 static void s390_machine_unprotect(S390CcwMachineState *ms) 330 { 331 if (!s390_pv_vm_try_disable_async(ms)) { 332 s390_pv_vm_disable(); 333 } 334 ms->pv = false; 335 migrate_del_blocker(pv_mig_blocker); 336 error_free_or_abort(&pv_mig_blocker); 337 ram_block_discard_disable(false); 338 } 339 340 static int s390_machine_protect(S390CcwMachineState *ms) 341 { 342 Error *local_err = NULL; 343 int rc; 344 345 /* 346 * Discarding of memory in RAM blocks does not work as expected with 347 * protected VMs. Sharing and unsharing pages would be required. Disable 348 * it for now, until until we have a solution to make at least Linux 349 * guests either support it (e.g., virtio-balloon) or fail gracefully. 350 */ 351 rc = ram_block_discard_disable(true); 352 if (rc) { 353 error_report("protected VMs: cannot disable RAM discard"); 354 return rc; 355 } 356 357 error_setg(&pv_mig_blocker, 358 "protected VMs are currently not migratable."); 359 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 360 if (rc) { 361 ram_block_discard_disable(false); 362 error_report_err(local_err); 363 error_free_or_abort(&pv_mig_blocker); 364 return rc; 365 } 366 367 /* Create SE VM */ 368 rc = s390_pv_vm_enable(); 369 if (rc) { 370 ram_block_discard_disable(false); 371 migrate_del_blocker(pv_mig_blocker); 372 error_free_or_abort(&pv_mig_blocker); 373 return rc; 374 } 375 376 ms->pv = true; 377 378 /* Will return 0 if API is not available since it's not vital */ 379 rc = s390_pv_query_info(); 380 if (rc) { 381 goto out_err; 382 } 383 384 /* Set SE header and unpack */ 385 rc = s390_ipl_prepare_pv_header(); 386 if (rc) { 387 goto out_err; 388 } 389 390 /* Decrypt image */ 391 rc = s390_ipl_pv_unpack(); 392 if (rc) { 393 goto out_err; 394 } 395 396 /* Verify integrity */ 397 rc = s390_pv_verify(); 398 if (rc) { 399 goto out_err; 400 } 401 return rc; 402 403 out_err: 404 s390_machine_unprotect(ms); 405 return rc; 406 } 407 408 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 409 { 410 CPUState *cs; 411 412 if (!s390_is_pv()) { 413 return; 414 } 415 /* Unsharing requires all cpus to be stopped */ 416 CPU_FOREACH(cs) { 417 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 418 } 419 s390_pv_unshare(); 420 s390_pv_prep_reset(); 421 } 422 423 static void s390_machine_reset(MachineState *machine, ShutdownCause reason) 424 { 425 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 426 enum s390_reset reset_type; 427 CPUState *cs, *t; 428 S390CPU *cpu; 429 430 /* get the reset parameters, reset them once done */ 431 s390_ipl_get_reset_request(&cs, &reset_type); 432 433 /* all CPUs are paused and synchronized at this point */ 434 s390_cmma_reset(); 435 436 cpu = S390_CPU(cs); 437 438 switch (reset_type) { 439 case S390_RESET_EXTERNAL: 440 case S390_RESET_REIPL: 441 /* 442 * Reset the subsystem which includes a AP reset. If a PV 443 * guest had APQNs attached the AP reset is a prerequisite to 444 * unprotecting since the UV checks if all APQNs are reset. 445 */ 446 subsystem_reset(); 447 if (s390_is_pv()) { 448 s390_machine_unprotect(ms); 449 } 450 451 /* 452 * Device reset includes CPU clear resets so this has to be 453 * done AFTER the unprotect call above. 454 */ 455 qemu_devices_reset(reason); 456 s390_crypto_reset(); 457 458 /* configure and start the ipl CPU only */ 459 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 460 break; 461 case S390_RESET_MODIFIED_CLEAR: 462 /* 463 * Subsystem reset needs to be done before we unshare memory 464 * and lose access to VIRTIO structures in guest memory. 465 */ 466 subsystem_reset(); 467 s390_crypto_reset(); 468 s390_pv_prepare_reset(ms); 469 CPU_FOREACH(t) { 470 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 471 } 472 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 473 break; 474 case S390_RESET_LOAD_NORMAL: 475 /* 476 * Subsystem reset needs to be done before we unshare memory 477 * and lose access to VIRTIO structures in guest memory. 478 */ 479 subsystem_reset(); 480 s390_pv_prepare_reset(ms); 481 CPU_FOREACH(t) { 482 if (t == cs) { 483 continue; 484 } 485 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 486 } 487 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 488 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 489 break; 490 case S390_RESET_PV: /* Subcode 10 */ 491 subsystem_reset(); 492 s390_crypto_reset(); 493 494 CPU_FOREACH(t) { 495 if (t == cs) { 496 continue; 497 } 498 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 499 } 500 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 501 502 if (s390_machine_protect(ms)) { 503 s390_pv_inject_reset_error(cs); 504 /* 505 * Continue after the diag308 so the guest knows something 506 * went wrong. 507 */ 508 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 509 return; 510 } 511 512 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 513 break; 514 default: 515 g_assert_not_reached(); 516 } 517 518 CPU_FOREACH(t) { 519 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 520 } 521 s390_ipl_clear_reset_request(); 522 } 523 524 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 525 DeviceState *dev, Error **errp) 526 { 527 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 528 s390_cpu_plug(hotplug_dev, dev, errp); 529 } 530 } 531 532 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 533 DeviceState *dev, Error **errp) 534 { 535 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 536 error_setg(errp, "CPU hot unplug not supported on this machine"); 537 return; 538 } 539 } 540 541 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 542 unsigned cpu_index) 543 { 544 MachineClass *mc = MACHINE_GET_CLASS(ms); 545 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 546 547 assert(cpu_index < possible_cpus->len); 548 return possible_cpus->cpus[cpu_index].props; 549 } 550 551 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 552 { 553 int i; 554 unsigned int max_cpus = ms->smp.max_cpus; 555 556 if (ms->possible_cpus) { 557 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 558 return ms->possible_cpus; 559 } 560 561 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 562 sizeof(CPUArchId) * max_cpus); 563 ms->possible_cpus->len = max_cpus; 564 for (i = 0; i < ms->possible_cpus->len; i++) { 565 ms->possible_cpus->cpus[i].type = ms->cpu_type; 566 ms->possible_cpus->cpus[i].vcpus_count = 1; 567 ms->possible_cpus->cpus[i].arch_id = i; 568 ms->possible_cpus->cpus[i].props.has_core_id = true; 569 ms->possible_cpus->cpus[i].props.core_id = i; 570 } 571 572 return ms->possible_cpus; 573 } 574 575 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 576 DeviceState *dev) 577 { 578 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 579 return HOTPLUG_HANDLER(machine); 580 } 581 return NULL; 582 } 583 584 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 585 { 586 CPUState *cs = qemu_get_cpu(cpu_index); 587 588 s390_cpu_restart(S390_CPU(cs)); 589 } 590 591 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 592 { 593 /* same logic as in sclp.c */ 594 int increment_size = 20; 595 ram_addr_t newsz; 596 597 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 598 increment_size++; 599 } 600 newsz = sz >> increment_size << increment_size; 601 602 if (sz != newsz) { 603 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 604 "MB to match machine restrictions. Consider updating " 605 "the guest definition.\n", (uint64_t) (sz / MiB), 606 (uint64_t) (newsz / MiB)); 607 } 608 return newsz; 609 } 610 611 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 612 { 613 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 614 615 return ms->aes_key_wrap; 616 } 617 618 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 619 Error **errp) 620 { 621 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 622 623 ms->aes_key_wrap = value; 624 } 625 626 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 627 { 628 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 629 630 return ms->dea_key_wrap; 631 } 632 633 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 634 Error **errp) 635 { 636 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 637 638 ms->dea_key_wrap = value; 639 } 640 641 static S390CcwMachineClass *current_mc; 642 643 /* 644 * Get the class of the s390-ccw-virtio machine that is currently in use. 645 * Note: libvirt is using the "none" machine to probe for the features of the 646 * host CPU, so in case this is called with the "none" machine, the function 647 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 648 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 649 * below return the correct default value for the "none" machine. 650 * 651 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 652 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 653 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 654 * CPU initialization and s390_has_feat() later should be sufficient. 655 */ 656 static S390CcwMachineClass *get_machine_class(void) 657 { 658 if (unlikely(!current_mc)) { 659 /* 660 * No s390 ccw machine was instantiated, we are likely to 661 * be called for the 'none' machine. The properties will 662 * have their after-initialization values. 663 */ 664 current_mc = S390_CCW_MACHINE_CLASS( 665 object_class_by_name(TYPE_S390_CCW_MACHINE)); 666 } 667 return current_mc; 668 } 669 670 bool ri_allowed(void) 671 { 672 return get_machine_class()->ri_allowed; 673 } 674 675 bool cpu_model_allowed(void) 676 { 677 return get_machine_class()->cpu_model_allowed; 678 } 679 680 bool hpage_1m_allowed(void) 681 { 682 return get_machine_class()->hpage_1m_allowed; 683 } 684 685 static void machine_get_loadparm(Object *obj, Visitor *v, 686 const char *name, void *opaque, 687 Error **errp) 688 { 689 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 690 char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 691 692 visit_type_str(v, name, &str, errp); 693 g_free(str); 694 } 695 696 static void machine_set_loadparm(Object *obj, Visitor *v, 697 const char *name, void *opaque, 698 Error **errp) 699 { 700 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 701 char *val; 702 int i; 703 704 if (!visit_type_str(v, name, &val, errp)) { 705 return; 706 } 707 708 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 709 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 710 711 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 712 (c == ' ')) { 713 ms->loadparm[i] = c; 714 } else { 715 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 716 c, c); 717 return; 718 } 719 } 720 721 for (; i < sizeof(ms->loadparm); i++) { 722 ms->loadparm[i] = ' '; /* pad right with spaces */ 723 } 724 } 725 726 static void ccw_machine_class_init(ObjectClass *oc, void *data) 727 { 728 MachineClass *mc = MACHINE_CLASS(oc); 729 NMIClass *nc = NMI_CLASS(oc); 730 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 731 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 732 733 s390mc->ri_allowed = true; 734 s390mc->cpu_model_allowed = true; 735 s390mc->css_migration_enabled = true; 736 s390mc->hpage_1m_allowed = true; 737 s390mc->max_threads = 1; 738 mc->init = ccw_init; 739 mc->reset = s390_machine_reset; 740 mc->block_default_type = IF_VIRTIO; 741 mc->no_cdrom = 1; 742 mc->no_floppy = 1; 743 mc->no_parallel = 1; 744 mc->no_sdcard = 1; 745 mc->max_cpus = S390_MAX_CPUS; 746 mc->has_hotpluggable_cpus = true; 747 assert(!mc->get_hotplug_handler); 748 mc->get_hotplug_handler = s390_get_hotplug_handler; 749 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 750 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 751 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 752 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 753 hc->plug = s390_machine_device_plug; 754 hc->unplug_request = s390_machine_device_unplug_request; 755 nc->nmi_monitor_handler = s390_nmi; 756 mc->default_ram_id = "s390.ram"; 757 mc->default_nic = "virtio-net-ccw"; 758 759 object_class_property_add_bool(oc, "aes-key-wrap", 760 machine_get_aes_key_wrap, 761 machine_set_aes_key_wrap); 762 object_class_property_set_description(oc, "aes-key-wrap", 763 "enable/disable AES key wrapping using the CPACF wrapping key"); 764 765 object_class_property_add_bool(oc, "dea-key-wrap", 766 machine_get_dea_key_wrap, 767 machine_set_dea_key_wrap); 768 object_class_property_set_description(oc, "dea-key-wrap", 769 "enable/disable DEA key wrapping using the CPACF wrapping key"); 770 771 object_class_property_add(oc, "loadparm", "loadparm", 772 machine_get_loadparm, machine_set_loadparm, 773 NULL, NULL); 774 object_class_property_set_description(oc, "loadparm", 775 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 776 " to upper case) to pass to machine loader, boot manager," 777 " and guest kernel"); 778 } 779 780 static inline void s390_machine_initfn(Object *obj) 781 { 782 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 783 784 ms->aes_key_wrap = true; 785 ms->dea_key_wrap = true; 786 } 787 788 static const TypeInfo ccw_machine_info = { 789 .name = TYPE_S390_CCW_MACHINE, 790 .parent = TYPE_MACHINE, 791 .abstract = true, 792 .instance_size = sizeof(S390CcwMachineState), 793 .instance_init = s390_machine_initfn, 794 .class_size = sizeof(S390CcwMachineClass), 795 .class_init = ccw_machine_class_init, 796 .interfaces = (InterfaceInfo[]) { 797 { TYPE_NMI }, 798 { TYPE_HOTPLUG_HANDLER}, 799 { } 800 }, 801 }; 802 803 bool css_migration_enabled(void) 804 { 805 return get_machine_class()->css_migration_enabled; 806 } 807 808 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 809 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 810 void *data) \ 811 { \ 812 MachineClass *mc = MACHINE_CLASS(oc); \ 813 ccw_machine_##suffix##_class_options(mc); \ 814 mc->desc = "Virtual s390x machine (version " verstr ")"; \ 815 if (latest) { \ 816 mc->alias = "s390-ccw-virtio"; \ 817 mc->is_default = true; \ 818 } \ 819 } \ 820 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 821 { \ 822 MachineState *machine = MACHINE(obj); \ 823 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 824 ccw_machine_##suffix##_instance_options(machine); \ 825 } \ 826 static const TypeInfo ccw_machine_##suffix##_info = { \ 827 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 828 .parent = TYPE_S390_CCW_MACHINE, \ 829 .class_init = ccw_machine_##suffix##_class_init, \ 830 .instance_init = ccw_machine_##suffix##_instance_init, \ 831 }; \ 832 static void ccw_machine_register_##suffix(void) \ 833 { \ 834 type_register_static(&ccw_machine_##suffix##_info); \ 835 } \ 836 type_init(ccw_machine_register_##suffix) 837 838 static void ccw_machine_8_2_instance_options(MachineState *machine) 839 { 840 } 841 842 static void ccw_machine_8_2_class_options(MachineClass *mc) 843 { 844 } 845 DEFINE_CCW_MACHINE(8_2, "8.2", true); 846 847 static void ccw_machine_8_1_instance_options(MachineState *machine) 848 { 849 ccw_machine_8_2_instance_options(machine); 850 } 851 852 static void ccw_machine_8_1_class_options(MachineClass *mc) 853 { 854 ccw_machine_8_2_class_options(mc); 855 compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len); 856 } 857 DEFINE_CCW_MACHINE(8_1, "8.1", false); 858 859 static void ccw_machine_8_0_instance_options(MachineState *machine) 860 { 861 ccw_machine_8_1_instance_options(machine); 862 } 863 864 static void ccw_machine_8_0_class_options(MachineClass *mc) 865 { 866 ccw_machine_8_1_class_options(mc); 867 compat_props_add(mc->compat_props, hw_compat_8_0, hw_compat_8_0_len); 868 } 869 DEFINE_CCW_MACHINE(8_0, "8.0", false); 870 871 static void ccw_machine_7_2_instance_options(MachineState *machine) 872 { 873 ccw_machine_8_0_instance_options(machine); 874 } 875 876 static void ccw_machine_7_2_class_options(MachineClass *mc) 877 { 878 ccw_machine_8_0_class_options(mc); 879 compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len); 880 } 881 DEFINE_CCW_MACHINE(7_2, "7.2", false); 882 883 static void ccw_machine_7_1_instance_options(MachineState *machine) 884 { 885 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 }; 886 887 ccw_machine_7_2_instance_options(machine); 888 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE); 889 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 890 } 891 892 static void ccw_machine_7_1_class_options(MachineClass *mc) 893 { 894 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 895 static GlobalProperty compat[] = { 896 { TYPE_S390_PCI_DEVICE, "interpret", "off", }, 897 { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", }, 898 }; 899 900 ccw_machine_7_2_class_options(mc); 901 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 902 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 903 s390mc->max_threads = S390_MAX_CPUS; 904 } 905 DEFINE_CCW_MACHINE(7_1, "7.1", false); 906 907 static void ccw_machine_7_0_instance_options(MachineState *machine) 908 { 909 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 }; 910 911 ccw_machine_7_1_instance_options(machine); 912 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 913 } 914 915 static void ccw_machine_7_0_class_options(MachineClass *mc) 916 { 917 ccw_machine_7_1_class_options(mc); 918 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 919 } 920 DEFINE_CCW_MACHINE(7_0, "7.0", false); 921 922 static void ccw_machine_6_2_instance_options(MachineState *machine) 923 { 924 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 }; 925 926 ccw_machine_7_0_instance_options(machine); 927 s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat); 928 } 929 930 static void ccw_machine_6_2_class_options(MachineClass *mc) 931 { 932 ccw_machine_7_0_class_options(mc); 933 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 934 } 935 DEFINE_CCW_MACHINE(6_2, "6.2", false); 936 937 static void ccw_machine_6_1_instance_options(MachineState *machine) 938 { 939 ccw_machine_6_2_instance_options(machine); 940 s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA); 941 s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2); 942 s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH); 943 s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP); 944 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI); 945 } 946 947 static void ccw_machine_6_1_class_options(MachineClass *mc) 948 { 949 ccw_machine_6_2_class_options(mc); 950 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 951 mc->smp_props.prefer_sockets = true; 952 } 953 DEFINE_CCW_MACHINE(6_1, "6.1", false); 954 955 static void ccw_machine_6_0_instance_options(MachineState *machine) 956 { 957 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 }; 958 959 ccw_machine_6_1_instance_options(machine); 960 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 961 } 962 963 static void ccw_machine_6_0_class_options(MachineClass *mc) 964 { 965 ccw_machine_6_1_class_options(mc); 966 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 967 } 968 DEFINE_CCW_MACHINE(6_0, "6.0", false); 969 970 static void ccw_machine_5_2_instance_options(MachineState *machine) 971 { 972 ccw_machine_6_0_instance_options(machine); 973 } 974 975 static void ccw_machine_5_2_class_options(MachineClass *mc) 976 { 977 ccw_machine_6_0_class_options(mc); 978 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 979 } 980 DEFINE_CCW_MACHINE(5_2, "5.2", false); 981 982 static void ccw_machine_5_1_instance_options(MachineState *machine) 983 { 984 ccw_machine_5_2_instance_options(machine); 985 } 986 987 static void ccw_machine_5_1_class_options(MachineClass *mc) 988 { 989 ccw_machine_5_2_class_options(mc); 990 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 991 } 992 DEFINE_CCW_MACHINE(5_1, "5.1", false); 993 994 static void ccw_machine_5_0_instance_options(MachineState *machine) 995 { 996 ccw_machine_5_1_instance_options(machine); 997 } 998 999 static void ccw_machine_5_0_class_options(MachineClass *mc) 1000 { 1001 ccw_machine_5_1_class_options(mc); 1002 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 1003 } 1004 DEFINE_CCW_MACHINE(5_0, "5.0", false); 1005 1006 static void ccw_machine_4_2_instance_options(MachineState *machine) 1007 { 1008 ccw_machine_5_0_instance_options(machine); 1009 } 1010 1011 static void ccw_machine_4_2_class_options(MachineClass *mc) 1012 { 1013 ccw_machine_5_0_class_options(mc); 1014 mc->fixup_ram_size = s390_fixup_ram_size; 1015 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 1016 } 1017 DEFINE_CCW_MACHINE(4_2, "4.2", false); 1018 1019 static void ccw_machine_4_1_instance_options(MachineState *machine) 1020 { 1021 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 1022 ccw_machine_4_2_instance_options(machine); 1023 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 1024 } 1025 1026 static void ccw_machine_4_1_class_options(MachineClass *mc) 1027 { 1028 ccw_machine_4_2_class_options(mc); 1029 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 1030 } 1031 DEFINE_CCW_MACHINE(4_1, "4.1", false); 1032 1033 static void ccw_machine_4_0_instance_options(MachineState *machine) 1034 { 1035 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 1036 ccw_machine_4_1_instance_options(machine); 1037 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1038 } 1039 1040 static void ccw_machine_4_0_class_options(MachineClass *mc) 1041 { 1042 ccw_machine_4_1_class_options(mc); 1043 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 1044 } 1045 DEFINE_CCW_MACHINE(4_0, "4.0", false); 1046 1047 static void ccw_machine_3_1_instance_options(MachineState *machine) 1048 { 1049 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 1050 ccw_machine_4_0_instance_options(machine); 1051 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 1052 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 1053 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 1054 } 1055 1056 static void ccw_machine_3_1_class_options(MachineClass *mc) 1057 { 1058 ccw_machine_4_0_class_options(mc); 1059 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 1060 } 1061 DEFINE_CCW_MACHINE(3_1, "3.1", false); 1062 1063 static void ccw_machine_3_0_instance_options(MachineState *machine) 1064 { 1065 ccw_machine_3_1_instance_options(machine); 1066 } 1067 1068 static void ccw_machine_3_0_class_options(MachineClass *mc) 1069 { 1070 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1071 1072 s390mc->hpage_1m_allowed = false; 1073 ccw_machine_3_1_class_options(mc); 1074 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 1075 } 1076 DEFINE_CCW_MACHINE(3_0, "3.0", false); 1077 1078 static void ccw_machine_2_12_instance_options(MachineState *machine) 1079 { 1080 ccw_machine_3_0_instance_options(machine); 1081 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 1082 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 1083 } 1084 1085 static void ccw_machine_2_12_class_options(MachineClass *mc) 1086 { 1087 ccw_machine_3_0_class_options(mc); 1088 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 1089 } 1090 DEFINE_CCW_MACHINE(2_12, "2.12", false); 1091 1092 static void ccw_machine_2_11_instance_options(MachineState *machine) 1093 { 1094 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 1095 ccw_machine_2_12_instance_options(machine); 1096 1097 /* before 2.12 we emulated the very first z900 */ 1098 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 1099 } 1100 1101 static void ccw_machine_2_11_class_options(MachineClass *mc) 1102 { 1103 static GlobalProperty compat[] = { 1104 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 1105 }; 1106 1107 ccw_machine_2_12_class_options(mc); 1108 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 1109 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1110 } 1111 DEFINE_CCW_MACHINE(2_11, "2.11", false); 1112 1113 static void ccw_machine_2_10_instance_options(MachineState *machine) 1114 { 1115 ccw_machine_2_11_instance_options(machine); 1116 } 1117 1118 static void ccw_machine_2_10_class_options(MachineClass *mc) 1119 { 1120 ccw_machine_2_11_class_options(mc); 1121 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 1122 } 1123 DEFINE_CCW_MACHINE(2_10, "2.10", false); 1124 1125 static void ccw_machine_2_9_instance_options(MachineState *machine) 1126 { 1127 ccw_machine_2_10_instance_options(machine); 1128 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 1129 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 1130 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 1131 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 1132 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 1133 } 1134 1135 static void ccw_machine_2_9_class_options(MachineClass *mc) 1136 { 1137 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1138 static GlobalProperty compat[] = { 1139 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 1140 }; 1141 1142 ccw_machine_2_10_class_options(mc); 1143 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 1144 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1145 s390mc->css_migration_enabled = false; 1146 } 1147 DEFINE_CCW_MACHINE(2_9, "2.9", false); 1148 1149 static void ccw_machine_2_8_instance_options(MachineState *machine) 1150 { 1151 ccw_machine_2_9_instance_options(machine); 1152 } 1153 1154 static void ccw_machine_2_8_class_options(MachineClass *mc) 1155 { 1156 static GlobalProperty compat[] = { 1157 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 1158 }; 1159 1160 ccw_machine_2_9_class_options(mc); 1161 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 1162 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1163 } 1164 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1165 1166 static void ccw_machine_2_7_instance_options(MachineState *machine) 1167 { 1168 ccw_machine_2_8_instance_options(machine); 1169 } 1170 1171 static void ccw_machine_2_7_class_options(MachineClass *mc) 1172 { 1173 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1174 1175 s390mc->cpu_model_allowed = false; 1176 ccw_machine_2_8_class_options(mc); 1177 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1178 } 1179 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1180 1181 static void ccw_machine_2_6_instance_options(MachineState *machine) 1182 { 1183 ccw_machine_2_7_instance_options(machine); 1184 } 1185 1186 static void ccw_machine_2_6_class_options(MachineClass *mc) 1187 { 1188 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1189 static GlobalProperty compat[] = { 1190 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1191 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1192 }; 1193 1194 s390mc->ri_allowed = false; 1195 ccw_machine_2_7_class_options(mc); 1196 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1197 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1198 } 1199 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1200 1201 static void ccw_machine_2_5_instance_options(MachineState *machine) 1202 { 1203 ccw_machine_2_6_instance_options(machine); 1204 } 1205 1206 static void ccw_machine_2_5_class_options(MachineClass *mc) 1207 { 1208 ccw_machine_2_6_class_options(mc); 1209 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1210 } 1211 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1212 1213 static void ccw_machine_2_4_instance_options(MachineState *machine) 1214 { 1215 ccw_machine_2_5_instance_options(machine); 1216 } 1217 1218 static void ccw_machine_2_4_class_options(MachineClass *mc) 1219 { 1220 static GlobalProperty compat[] = { 1221 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1222 { "virtio-blk-ccw", "max_revision", "0", }, 1223 { "virtio-balloon-ccw", "max_revision", "0", }, 1224 { "virtio-serial-ccw", "max_revision", "0", }, 1225 { "virtio-9p-ccw", "max_revision", "0", }, 1226 { "virtio-rng-ccw", "max_revision", "0", }, 1227 { "virtio-net-ccw", "max_revision", "0", }, 1228 { "virtio-scsi-ccw", "max_revision", "0", }, 1229 { "vhost-scsi-ccw", "max_revision", "0", }, 1230 }; 1231 1232 ccw_machine_2_5_class_options(mc); 1233 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1234 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1235 } 1236 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1237 1238 static void ccw_machine_register_types(void) 1239 { 1240 type_register_static(&ccw_machine_info); 1241 } 1242 1243 type_init(ccw_machine_register_types) 1244