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 "cpu.h" 17 #include "hw/boards.h" 18 #include "exec/address-spaces.h" 19 #include "exec/ram_addr.h" 20 #include "hw/s390x/s390-virtio-hcall.h" 21 #include "hw/s390x/sclp.h" 22 #include "hw/s390x/s390_flic.h" 23 #include "hw/s390x/ioinst.h" 24 #include "hw/s390x/css.h" 25 #include "virtio-ccw.h" 26 #include "qemu/config-file.h" 27 #include "qemu/ctype.h" 28 #include "qemu/error-report.h" 29 #include "qemu/option.h" 30 #include "qemu/qemu-print.h" 31 #include "hw/s390x/s390-pci-bus.h" 32 #include "sysemu/reset.h" 33 #include "hw/s390x/storage-keys.h" 34 #include "hw/s390x/storage-attributes.h" 35 #include "hw/s390x/event-facility.h" 36 #include "ipl.h" 37 #include "hw/s390x/s390-virtio-ccw.h" 38 #include "hw/s390x/css-bridge.h" 39 #include "hw/s390x/ap-bridge.h" 40 #include "migration/register.h" 41 #include "cpu_models.h" 42 #include "hw/nmi.h" 43 #include "hw/qdev-properties.h" 44 #include "hw/s390x/tod.h" 45 #include "sysemu/sysemu.h" 46 #include "hw/s390x/pv.h" 47 #include "migration/blocker.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 int i; 90 91 /* initialize possible_cpus */ 92 mc->possible_cpu_arch_ids(machine); 93 94 for (i = 0; i < machine->smp.cpus; i++) { 95 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 96 } 97 } 98 99 static const char *const reset_dev_types[] = { 100 TYPE_VIRTUAL_CSS_BRIDGE, 101 "s390-sclp-event-facility", 102 "s390-flic", 103 "diag288", 104 TYPE_S390_PCI_HOST_BRIDGE, 105 }; 106 107 static void subsystem_reset(void) 108 { 109 DeviceState *dev; 110 int i; 111 112 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 113 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 114 if (dev) { 115 qdev_reset_all(dev); 116 } 117 } 118 } 119 120 static int virtio_ccw_hcall_notify(const uint64_t *args) 121 { 122 uint64_t subch_id = args[0]; 123 uint64_t queue = args[1]; 124 SubchDev *sch; 125 int cssid, ssid, schid, m; 126 127 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 128 return -EINVAL; 129 } 130 sch = css_find_subch(m, cssid, ssid, schid); 131 if (!sch || !css_subch_visible(sch)) { 132 return -EINVAL; 133 } 134 if (queue >= VIRTIO_QUEUE_MAX) { 135 return -EINVAL; 136 } 137 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 138 return 0; 139 140 } 141 142 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 143 { 144 uint64_t mem = args[0]; 145 146 if (mem < ram_size) { 147 /* Early printk */ 148 return 0; 149 } 150 return -EINVAL; 151 } 152 153 static void virtio_ccw_register_hcalls(void) 154 { 155 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 156 virtio_ccw_hcall_notify); 157 /* Tolerate early printk. */ 158 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 159 virtio_ccw_hcall_early_printk); 160 } 161 162 static void s390_memory_init(MemoryRegion *ram) 163 { 164 MemoryRegion *sysmem = get_system_memory(); 165 166 /* allocate RAM for core */ 167 memory_region_add_subregion(sysmem, 0, ram); 168 169 /* 170 * Configure the maximum page size. As no memory devices were created 171 * yet, this is the page size of initial memory only. 172 */ 173 s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal); 174 /* Initialize storage key device */ 175 s390_skeys_init(); 176 /* Initialize storage attributes device */ 177 s390_stattrib_init(); 178 } 179 180 static void s390_init_ipl_dev(const char *kernel_filename, 181 const char *kernel_cmdline, 182 const char *initrd_filename, const char *firmware, 183 const char *netboot_fw, bool enforce_bios) 184 { 185 Object *new = object_new(TYPE_S390_IPL); 186 DeviceState *dev = DEVICE(new); 187 char *netboot_fw_prop; 188 189 if (kernel_filename) { 190 qdev_prop_set_string(dev, "kernel", kernel_filename); 191 } 192 if (initrd_filename) { 193 qdev_prop_set_string(dev, "initrd", initrd_filename); 194 } 195 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 196 qdev_prop_set_string(dev, "firmware", firmware); 197 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 198 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 199 if (!strlen(netboot_fw_prop)) { 200 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 201 } 202 g_free(netboot_fw_prop); 203 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 204 new); 205 object_unref(new); 206 qdev_realize(dev, NULL, &error_fatal); 207 } 208 209 static void s390_create_virtio_net(BusState *bus, const char *name) 210 { 211 int i; 212 213 for (i = 0; i < nb_nics; i++) { 214 NICInfo *nd = &nd_table[i]; 215 DeviceState *dev; 216 217 if (!nd->model) { 218 nd->model = g_strdup("virtio"); 219 } 220 221 qemu_check_nic_model(nd, "virtio"); 222 223 dev = qdev_new(name); 224 qdev_set_nic_properties(dev, nd); 225 qdev_realize_and_unref(dev, bus, &error_fatal); 226 } 227 } 228 229 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 230 { 231 DeviceState *dev; 232 233 dev = qdev_new(type); 234 qdev_prop_set_chr(dev, "chardev", chardev); 235 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 236 } 237 238 static void ccw_init(MachineState *machine) 239 { 240 int ret; 241 VirtualCssBus *css_bus; 242 DeviceState *dev; 243 244 s390_sclp_init(); 245 /* init memory + setup max page size. Required for the CPU model */ 246 s390_memory_init(machine->ram); 247 248 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 249 s390_init_cpus(machine); 250 251 s390_flic_init(); 252 253 /* init the SIGP facility */ 254 s390_init_sigp(); 255 256 /* create AP bridge and bus(es) */ 257 s390_init_ap(); 258 259 /* get a BUS */ 260 css_bus = virtual_css_bus_init(); 261 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 262 machine->initrd_filename, 263 machine->firmware ?: "s390-ccw.img", 264 "s390-netboot.img", true); 265 266 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 267 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 268 OBJECT(dev)); 269 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 270 271 /* register hypercalls */ 272 virtio_ccw_register_hcalls(); 273 274 s390_enable_css_support(s390_cpu_addr2state(0)); 275 276 ret = css_create_css_image(VIRTUAL_CSSID, true); 277 278 assert(ret == 0); 279 if (css_migration_enabled()) { 280 css_register_vmstate(); 281 } 282 283 /* Create VirtIO network adapters */ 284 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 285 286 /* init consoles */ 287 if (serial_hd(0)) { 288 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 289 } 290 if (serial_hd(1)) { 291 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 292 } 293 294 /* init the TOD clock */ 295 s390_init_tod(); 296 } 297 298 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 299 DeviceState *dev, Error **errp) 300 { 301 MachineState *ms = MACHINE(hotplug_dev); 302 S390CPU *cpu = S390_CPU(dev); 303 304 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 305 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 306 307 if (dev->hotplugged) { 308 raise_irq_cpu_hotplug(); 309 } 310 } 311 312 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 313 { 314 S390CPU *cpu = S390_CPU(cs); 315 316 s390_ipl_prepare_cpu(cpu); 317 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 318 } 319 320 static void s390_machine_unprotect(S390CcwMachineState *ms) 321 { 322 s390_pv_vm_disable(); 323 ms->pv = false; 324 migrate_del_blocker(pv_mig_blocker); 325 error_free_or_abort(&pv_mig_blocker); 326 ram_block_discard_disable(false); 327 } 328 329 static int s390_machine_protect(S390CcwMachineState *ms) 330 { 331 Error *local_err = NULL; 332 int rc; 333 334 /* 335 * Discarding of memory in RAM blocks does not work as expected with 336 * protected VMs. Sharing and unsharing pages would be required. Disable 337 * it for now, until until we have a solution to make at least Linux 338 * guests either support it (e.g., virtio-balloon) or fail gracefully. 339 */ 340 rc = ram_block_discard_disable(true); 341 if (rc) { 342 error_report("protected VMs: cannot disable RAM discard"); 343 return rc; 344 } 345 346 error_setg(&pv_mig_blocker, 347 "protected VMs are currently not migrateable."); 348 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 349 if (rc) { 350 ram_block_discard_disable(false); 351 error_report_err(local_err); 352 error_free_or_abort(&pv_mig_blocker); 353 return rc; 354 } 355 356 /* Create SE VM */ 357 rc = s390_pv_vm_enable(); 358 if (rc) { 359 ram_block_discard_disable(false); 360 migrate_del_blocker(pv_mig_blocker); 361 error_free_or_abort(&pv_mig_blocker); 362 return rc; 363 } 364 365 ms->pv = true; 366 367 /* Set SE header and unpack */ 368 rc = s390_ipl_prepare_pv_header(); 369 if (rc) { 370 goto out_err; 371 } 372 373 /* Decrypt image */ 374 rc = s390_ipl_pv_unpack(); 375 if (rc) { 376 goto out_err; 377 } 378 379 /* Verify integrity */ 380 rc = s390_pv_verify(); 381 if (rc) { 382 goto out_err; 383 } 384 return rc; 385 386 out_err: 387 s390_machine_unprotect(ms); 388 return rc; 389 } 390 391 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 392 { 393 CPUState *cs; 394 395 if (!s390_is_pv()) { 396 return; 397 } 398 /* Unsharing requires all cpus to be stopped */ 399 CPU_FOREACH(cs) { 400 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 401 } 402 s390_pv_unshare(); 403 s390_pv_prep_reset(); 404 } 405 406 static void s390_machine_reset(MachineState *machine) 407 { 408 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 409 enum s390_reset reset_type; 410 CPUState *cs, *t; 411 S390CPU *cpu; 412 413 /* get the reset parameters, reset them once done */ 414 s390_ipl_get_reset_request(&cs, &reset_type); 415 416 /* all CPUs are paused and synchronized at this point */ 417 s390_cmma_reset(); 418 419 cpu = S390_CPU(cs); 420 421 switch (reset_type) { 422 case S390_RESET_EXTERNAL: 423 case S390_RESET_REIPL: 424 if (s390_is_pv()) { 425 s390_machine_unprotect(ms); 426 } 427 428 qemu_devices_reset(); 429 s390_crypto_reset(); 430 431 /* configure and start the ipl CPU only */ 432 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 433 break; 434 case S390_RESET_MODIFIED_CLEAR: 435 /* 436 * Susbsystem reset needs to be done before we unshare memory 437 * and lose access to VIRTIO structures in guest memory. 438 */ 439 subsystem_reset(); 440 s390_crypto_reset(); 441 s390_pv_prepare_reset(ms); 442 CPU_FOREACH(t) { 443 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 444 } 445 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 446 break; 447 case S390_RESET_LOAD_NORMAL: 448 /* 449 * Susbsystem reset needs to be done before we unshare memory 450 * and lose access to VIRTIO structures in guest memory. 451 */ 452 subsystem_reset(); 453 s390_pv_prepare_reset(ms); 454 CPU_FOREACH(t) { 455 if (t == cs) { 456 continue; 457 } 458 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 459 } 460 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 461 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 462 break; 463 case S390_RESET_PV: /* Subcode 10 */ 464 subsystem_reset(); 465 s390_crypto_reset(); 466 467 CPU_FOREACH(t) { 468 if (t == cs) { 469 continue; 470 } 471 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 472 } 473 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 474 475 if (s390_machine_protect(ms)) { 476 s390_pv_inject_reset_error(cs); 477 /* 478 * Continue after the diag308 so the guest knows something 479 * went wrong. 480 */ 481 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 482 return; 483 } 484 485 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 486 break; 487 default: 488 g_assert_not_reached(); 489 } 490 491 CPU_FOREACH(t) { 492 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 493 } 494 s390_ipl_clear_reset_request(); 495 } 496 497 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 498 DeviceState *dev, Error **errp) 499 { 500 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 501 s390_cpu_plug(hotplug_dev, dev, errp); 502 } 503 } 504 505 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 506 DeviceState *dev, Error **errp) 507 { 508 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 509 error_setg(errp, "CPU hot unplug not supported on this machine"); 510 return; 511 } 512 } 513 514 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 515 unsigned cpu_index) 516 { 517 MachineClass *mc = MACHINE_GET_CLASS(ms); 518 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 519 520 assert(cpu_index < possible_cpus->len); 521 return possible_cpus->cpus[cpu_index].props; 522 } 523 524 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 525 { 526 int i; 527 unsigned int max_cpus = ms->smp.max_cpus; 528 529 if (ms->possible_cpus) { 530 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 531 return ms->possible_cpus; 532 } 533 534 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 535 sizeof(CPUArchId) * max_cpus); 536 ms->possible_cpus->len = max_cpus; 537 for (i = 0; i < ms->possible_cpus->len; i++) { 538 ms->possible_cpus->cpus[i].type = ms->cpu_type; 539 ms->possible_cpus->cpus[i].vcpus_count = 1; 540 ms->possible_cpus->cpus[i].arch_id = i; 541 ms->possible_cpus->cpus[i].props.has_core_id = true; 542 ms->possible_cpus->cpus[i].props.core_id = i; 543 } 544 545 return ms->possible_cpus; 546 } 547 548 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 549 DeviceState *dev) 550 { 551 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 552 return HOTPLUG_HANDLER(machine); 553 } 554 return NULL; 555 } 556 557 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 558 { 559 CPUState *cs = qemu_get_cpu(cpu_index); 560 561 s390_cpu_restart(S390_CPU(cs)); 562 } 563 564 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 565 { 566 /* same logic as in sclp.c */ 567 int increment_size = 20; 568 ram_addr_t newsz; 569 570 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 571 increment_size++; 572 } 573 newsz = sz >> increment_size << increment_size; 574 575 if (sz != newsz) { 576 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 577 "MB to match machine restrictions. Consider updating " 578 "the guest definition.\n", (uint64_t) (sz / MiB), 579 (uint64_t) (newsz / MiB)); 580 } 581 return newsz; 582 } 583 584 static void ccw_machine_class_init(ObjectClass *oc, void *data) 585 { 586 MachineClass *mc = MACHINE_CLASS(oc); 587 NMIClass *nc = NMI_CLASS(oc); 588 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 589 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 590 591 s390mc->ri_allowed = true; 592 s390mc->cpu_model_allowed = true; 593 s390mc->css_migration_enabled = true; 594 s390mc->hpage_1m_allowed = true; 595 mc->init = ccw_init; 596 mc->reset = s390_machine_reset; 597 mc->block_default_type = IF_VIRTIO; 598 mc->no_cdrom = 1; 599 mc->no_floppy = 1; 600 mc->no_parallel = 1; 601 mc->no_sdcard = 1; 602 mc->max_cpus = S390_MAX_CPUS; 603 mc->has_hotpluggable_cpus = true; 604 assert(!mc->get_hotplug_handler); 605 mc->get_hotplug_handler = s390_get_hotplug_handler; 606 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 607 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 608 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 609 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 610 hc->plug = s390_machine_device_plug; 611 hc->unplug_request = s390_machine_device_unplug_request; 612 nc->nmi_monitor_handler = s390_nmi; 613 mc->default_ram_id = "s390.ram"; 614 } 615 616 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 617 { 618 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 619 620 return ms->aes_key_wrap; 621 } 622 623 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 624 Error **errp) 625 { 626 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 627 628 ms->aes_key_wrap = value; 629 } 630 631 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 632 { 633 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 634 635 return ms->dea_key_wrap; 636 } 637 638 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 639 Error **errp) 640 { 641 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 642 643 ms->dea_key_wrap = value; 644 } 645 646 static S390CcwMachineClass *current_mc; 647 648 /* 649 * Get the class of the s390-ccw-virtio machine that is currently in use. 650 * Note: libvirt is using the "none" machine to probe for the features of the 651 * host CPU, so in case this is called with the "none" machine, the function 652 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 653 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 654 * below return the correct default value for the "none" machine. 655 * 656 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 657 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 658 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 659 * CPU initialization and s390_has_feat() later should be sufficient. 660 */ 661 static S390CcwMachineClass *get_machine_class(void) 662 { 663 if (unlikely(!current_mc)) { 664 /* 665 * No s390 ccw machine was instantiated, we are likely to 666 * be called for the 'none' machine. The properties will 667 * have their after-initialization values. 668 */ 669 current_mc = S390_CCW_MACHINE_CLASS( 670 object_class_by_name(TYPE_S390_CCW_MACHINE)); 671 } 672 return current_mc; 673 } 674 675 bool ri_allowed(void) 676 { 677 return get_machine_class()->ri_allowed; 678 } 679 680 bool cpu_model_allowed(void) 681 { 682 return get_machine_class()->cpu_model_allowed; 683 } 684 685 bool hpage_1m_allowed(void) 686 { 687 return get_machine_class()->hpage_1m_allowed; 688 } 689 690 static char *machine_get_loadparm(Object *obj, Error **errp) 691 { 692 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 693 694 /* make a NUL-terminated string */ 695 return g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 696 } 697 698 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 699 { 700 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 701 int i; 702 703 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 704 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 705 706 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 707 (c == ' ')) { 708 ms->loadparm[i] = c; 709 } else { 710 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 711 c, c); 712 return; 713 } 714 } 715 716 for (; i < sizeof(ms->loadparm); i++) { 717 ms->loadparm[i] = ' '; /* pad right with spaces */ 718 } 719 } 720 static inline void s390_machine_initfn(Object *obj) 721 { 722 object_property_add_bool(obj, "aes-key-wrap", 723 machine_get_aes_key_wrap, 724 machine_set_aes_key_wrap); 725 object_property_set_description(obj, "aes-key-wrap", 726 "enable/disable AES key wrapping using the CPACF wrapping key"); 727 object_property_set_bool(obj, "aes-key-wrap", true, NULL); 728 729 object_property_add_bool(obj, "dea-key-wrap", 730 machine_get_dea_key_wrap, 731 machine_set_dea_key_wrap); 732 object_property_set_description(obj, "dea-key-wrap", 733 "enable/disable DEA key wrapping using the CPACF wrapping key"); 734 object_property_set_bool(obj, "dea-key-wrap", true, NULL); 735 object_property_add_str(obj, "loadparm", 736 machine_get_loadparm, machine_set_loadparm); 737 object_property_set_description(obj, "loadparm", 738 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 739 " to upper case) to pass to machine loader, boot manager," 740 " and guest kernel"); 741 } 742 743 static const TypeInfo ccw_machine_info = { 744 .name = TYPE_S390_CCW_MACHINE, 745 .parent = TYPE_MACHINE, 746 .abstract = true, 747 .instance_size = sizeof(S390CcwMachineState), 748 .instance_init = s390_machine_initfn, 749 .class_size = sizeof(S390CcwMachineClass), 750 .class_init = ccw_machine_class_init, 751 .interfaces = (InterfaceInfo[]) { 752 { TYPE_NMI }, 753 { TYPE_HOTPLUG_HANDLER}, 754 { } 755 }, 756 }; 757 758 bool css_migration_enabled(void) 759 { 760 return get_machine_class()->css_migration_enabled; 761 } 762 763 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 764 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 765 void *data) \ 766 { \ 767 MachineClass *mc = MACHINE_CLASS(oc); \ 768 ccw_machine_##suffix##_class_options(mc); \ 769 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \ 770 if (latest) { \ 771 mc->alias = "s390-ccw-virtio"; \ 772 mc->is_default = true; \ 773 } \ 774 } \ 775 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 776 { \ 777 MachineState *machine = MACHINE(obj); \ 778 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 779 ccw_machine_##suffix##_instance_options(machine); \ 780 } \ 781 static const TypeInfo ccw_machine_##suffix##_info = { \ 782 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 783 .parent = TYPE_S390_CCW_MACHINE, \ 784 .class_init = ccw_machine_##suffix##_class_init, \ 785 .instance_init = ccw_machine_##suffix##_instance_init, \ 786 }; \ 787 static void ccw_machine_register_##suffix(void) \ 788 { \ 789 type_register_static(&ccw_machine_##suffix##_info); \ 790 } \ 791 type_init(ccw_machine_register_##suffix) 792 793 static void ccw_machine_6_0_instance_options(MachineState *machine) 794 { 795 } 796 797 static void ccw_machine_6_0_class_options(MachineClass *mc) 798 { 799 } 800 DEFINE_CCW_MACHINE(6_0, "6.0", true); 801 802 static void ccw_machine_5_2_instance_options(MachineState *machine) 803 { 804 ccw_machine_6_0_instance_options(machine); 805 } 806 807 static void ccw_machine_5_2_class_options(MachineClass *mc) 808 { 809 ccw_machine_6_0_class_options(mc); 810 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 811 } 812 DEFINE_CCW_MACHINE(5_2, "5.2", false); 813 814 static void ccw_machine_5_1_instance_options(MachineState *machine) 815 { 816 ccw_machine_5_2_instance_options(machine); 817 } 818 819 static void ccw_machine_5_1_class_options(MachineClass *mc) 820 { 821 ccw_machine_5_2_class_options(mc); 822 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 823 } 824 DEFINE_CCW_MACHINE(5_1, "5.1", false); 825 826 static void ccw_machine_5_0_instance_options(MachineState *machine) 827 { 828 ccw_machine_5_1_instance_options(machine); 829 } 830 831 static void ccw_machine_5_0_class_options(MachineClass *mc) 832 { 833 ccw_machine_5_1_class_options(mc); 834 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 835 } 836 DEFINE_CCW_MACHINE(5_0, "5.0", false); 837 838 static void ccw_machine_4_2_instance_options(MachineState *machine) 839 { 840 ccw_machine_5_0_instance_options(machine); 841 } 842 843 static void ccw_machine_4_2_class_options(MachineClass *mc) 844 { 845 ccw_machine_5_0_class_options(mc); 846 mc->fixup_ram_size = s390_fixup_ram_size; 847 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 848 } 849 DEFINE_CCW_MACHINE(4_2, "4.2", false); 850 851 static void ccw_machine_4_1_instance_options(MachineState *machine) 852 { 853 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 854 ccw_machine_4_2_instance_options(machine); 855 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 856 } 857 858 static void ccw_machine_4_1_class_options(MachineClass *mc) 859 { 860 ccw_machine_4_2_class_options(mc); 861 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 862 } 863 DEFINE_CCW_MACHINE(4_1, "4.1", false); 864 865 static void ccw_machine_4_0_instance_options(MachineState *machine) 866 { 867 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 868 ccw_machine_4_1_instance_options(machine); 869 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 870 } 871 872 static void ccw_machine_4_0_class_options(MachineClass *mc) 873 { 874 ccw_machine_4_1_class_options(mc); 875 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 876 } 877 DEFINE_CCW_MACHINE(4_0, "4.0", false); 878 879 static void ccw_machine_3_1_instance_options(MachineState *machine) 880 { 881 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 882 ccw_machine_4_0_instance_options(machine); 883 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 884 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 885 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 886 } 887 888 static void ccw_machine_3_1_class_options(MachineClass *mc) 889 { 890 ccw_machine_4_0_class_options(mc); 891 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 892 } 893 DEFINE_CCW_MACHINE(3_1, "3.1", false); 894 895 static void ccw_machine_3_0_instance_options(MachineState *machine) 896 { 897 ccw_machine_3_1_instance_options(machine); 898 } 899 900 static void ccw_machine_3_0_class_options(MachineClass *mc) 901 { 902 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 903 904 s390mc->hpage_1m_allowed = false; 905 ccw_machine_3_1_class_options(mc); 906 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 907 } 908 DEFINE_CCW_MACHINE(3_0, "3.0", false); 909 910 static void ccw_machine_2_12_instance_options(MachineState *machine) 911 { 912 ccw_machine_3_0_instance_options(machine); 913 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 914 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 915 } 916 917 static void ccw_machine_2_12_class_options(MachineClass *mc) 918 { 919 ccw_machine_3_0_class_options(mc); 920 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 921 } 922 DEFINE_CCW_MACHINE(2_12, "2.12", false); 923 924 static void ccw_machine_2_11_instance_options(MachineState *machine) 925 { 926 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 927 ccw_machine_2_12_instance_options(machine); 928 929 /* before 2.12 we emulated the very first z900 */ 930 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 931 } 932 933 static void ccw_machine_2_11_class_options(MachineClass *mc) 934 { 935 static GlobalProperty compat[] = { 936 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 937 }; 938 939 ccw_machine_2_12_class_options(mc); 940 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 941 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 942 } 943 DEFINE_CCW_MACHINE(2_11, "2.11", false); 944 945 static void ccw_machine_2_10_instance_options(MachineState *machine) 946 { 947 ccw_machine_2_11_instance_options(machine); 948 } 949 950 static void ccw_machine_2_10_class_options(MachineClass *mc) 951 { 952 ccw_machine_2_11_class_options(mc); 953 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 954 } 955 DEFINE_CCW_MACHINE(2_10, "2.10", false); 956 957 static void ccw_machine_2_9_instance_options(MachineState *machine) 958 { 959 ccw_machine_2_10_instance_options(machine); 960 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 961 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 962 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 963 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 964 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 965 } 966 967 static void ccw_machine_2_9_class_options(MachineClass *mc) 968 { 969 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 970 static GlobalProperty compat[] = { 971 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 972 }; 973 974 ccw_machine_2_10_class_options(mc); 975 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 976 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 977 s390mc->css_migration_enabled = false; 978 } 979 DEFINE_CCW_MACHINE(2_9, "2.9", false); 980 981 static void ccw_machine_2_8_instance_options(MachineState *machine) 982 { 983 ccw_machine_2_9_instance_options(machine); 984 } 985 986 static void ccw_machine_2_8_class_options(MachineClass *mc) 987 { 988 static GlobalProperty compat[] = { 989 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 990 }; 991 992 ccw_machine_2_9_class_options(mc); 993 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 994 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 995 } 996 DEFINE_CCW_MACHINE(2_8, "2.8", false); 997 998 static void ccw_machine_2_7_instance_options(MachineState *machine) 999 { 1000 ccw_machine_2_8_instance_options(machine); 1001 } 1002 1003 static void ccw_machine_2_7_class_options(MachineClass *mc) 1004 { 1005 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1006 1007 s390mc->cpu_model_allowed = false; 1008 ccw_machine_2_8_class_options(mc); 1009 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1010 } 1011 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1012 1013 static void ccw_machine_2_6_instance_options(MachineState *machine) 1014 { 1015 ccw_machine_2_7_instance_options(machine); 1016 } 1017 1018 static void ccw_machine_2_6_class_options(MachineClass *mc) 1019 { 1020 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1021 static GlobalProperty compat[] = { 1022 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1023 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1024 }; 1025 1026 s390mc->ri_allowed = false; 1027 ccw_machine_2_7_class_options(mc); 1028 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1029 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1030 } 1031 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1032 1033 static void ccw_machine_2_5_instance_options(MachineState *machine) 1034 { 1035 ccw_machine_2_6_instance_options(machine); 1036 } 1037 1038 static void ccw_machine_2_5_class_options(MachineClass *mc) 1039 { 1040 ccw_machine_2_6_class_options(mc); 1041 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1042 } 1043 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1044 1045 static void ccw_machine_2_4_instance_options(MachineState *machine) 1046 { 1047 ccw_machine_2_5_instance_options(machine); 1048 } 1049 1050 static void ccw_machine_2_4_class_options(MachineClass *mc) 1051 { 1052 static GlobalProperty compat[] = { 1053 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1054 { "virtio-blk-ccw", "max_revision", "0", }, 1055 { "virtio-balloon-ccw", "max_revision", "0", }, 1056 { "virtio-serial-ccw", "max_revision", "0", }, 1057 { "virtio-9p-ccw", "max_revision", "0", }, 1058 { "virtio-rng-ccw", "max_revision", "0", }, 1059 { "virtio-net-ccw", "max_revision", "0", }, 1060 { "virtio-scsi-ccw", "max_revision", "0", }, 1061 { "vhost-scsi-ccw", "max_revision", "0", }, 1062 }; 1063 1064 ccw_machine_2_5_class_options(mc); 1065 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1066 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1067 } 1068 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1069 1070 static void ccw_machine_register_types(void) 1071 { 1072 type_register_static(&ccw_machine_info); 1073 } 1074 1075 type_init(ccw_machine_register_types) 1076