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 "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 "sysemu/balloon.h" 47 #include "hw/s390x/pv.h" 48 #include "migration/blocker.h" 49 50 static Error *pv_mig_blocker; 51 52 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 53 { 54 static MachineState *ms; 55 56 if (!ms) { 57 ms = MACHINE(qdev_get_machine()); 58 g_assert(ms->possible_cpus); 59 } 60 61 /* CPU address corresponds to the core_id and the index */ 62 if (cpu_addr >= ms->possible_cpus->len) { 63 return NULL; 64 } 65 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 66 } 67 68 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 69 Error **errp) 70 { 71 S390CPU *cpu = S390_CPU(object_new(typename)); 72 Error *err = NULL; 73 74 object_property_set_int(OBJECT(cpu), core_id, "core-id", &err); 75 if (err != NULL) { 76 goto out; 77 } 78 object_property_set_bool(OBJECT(cpu), true, "realized", &err); 79 80 out: 81 object_unref(OBJECT(cpu)); 82 if (err) { 83 error_propagate(errp, err); 84 cpu = NULL; 85 } 86 return cpu; 87 } 88 89 static void s390_init_cpus(MachineState *machine) 90 { 91 MachineClass *mc = MACHINE_GET_CLASS(machine); 92 int i; 93 94 /* initialize possible_cpus */ 95 mc->possible_cpu_arch_ids(machine); 96 97 for (i = 0; i < machine->smp.cpus; i++) { 98 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 99 } 100 } 101 102 static const char *const reset_dev_types[] = { 103 TYPE_VIRTUAL_CSS_BRIDGE, 104 "s390-sclp-event-facility", 105 "s390-flic", 106 "diag288", 107 }; 108 109 static void subsystem_reset(void) 110 { 111 DeviceState *dev; 112 int i; 113 114 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 115 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 116 if (dev) { 117 qdev_reset_all(dev); 118 } 119 } 120 } 121 122 static int virtio_ccw_hcall_notify(const uint64_t *args) 123 { 124 uint64_t subch_id = args[0]; 125 uint64_t queue = args[1]; 126 SubchDev *sch; 127 int cssid, ssid, schid, m; 128 129 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 130 return -EINVAL; 131 } 132 sch = css_find_subch(m, cssid, ssid, schid); 133 if (!sch || !css_subch_visible(sch)) { 134 return -EINVAL; 135 } 136 if (queue >= VIRTIO_QUEUE_MAX) { 137 return -EINVAL; 138 } 139 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 140 return 0; 141 142 } 143 144 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 145 { 146 uint64_t mem = args[0]; 147 148 if (mem < ram_size) { 149 /* Early printk */ 150 return 0; 151 } 152 return -EINVAL; 153 } 154 155 static void virtio_ccw_register_hcalls(void) 156 { 157 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 158 virtio_ccw_hcall_notify); 159 /* Tolerate early printk. */ 160 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 161 virtio_ccw_hcall_early_printk); 162 } 163 164 static void s390_memory_init(MemoryRegion *ram) 165 { 166 MemoryRegion *sysmem = get_system_memory(); 167 Error *local_err = NULL; 168 169 /* allocate RAM for core */ 170 memory_region_add_subregion(sysmem, 0, ram); 171 172 /* 173 * Configure the maximum page size. As no memory devices were created 174 * yet, this is the page size of initial memory only. 175 */ 176 s390_set_max_pagesize(qemu_maxrampagesize(), &local_err); 177 if (local_err) { 178 error_report_err(local_err); 179 exit(EXIT_FAILURE); 180 } 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, NULL); 212 object_unref(new); 213 qdev_init_nofail(dev); 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_create(bus, name); 231 qdev_set_nic_properties(dev, nd); 232 qdev_init_nofail(dev); 233 } 234 } 235 236 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 237 { 238 DeviceState *dev; 239 240 dev = qdev_create(sclp_get_event_facility_bus(), type); 241 qdev_prop_set_chr(dev, "chardev", chardev); 242 qdev_init_nofail(dev); 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 s390_flic_init(); 259 260 /* init the SIGP facility */ 261 s390_init_sigp(); 262 263 /* create AP bridge and bus(es) */ 264 s390_init_ap(); 265 266 /* get a BUS */ 267 css_bus = virtual_css_bus_init(); 268 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 269 machine->initrd_filename, "s390-ccw.img", 270 "s390-netboot.img", true); 271 272 dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE); 273 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 274 OBJECT(dev), NULL); 275 qdev_init_nofail(dev); 276 277 /* register hypercalls */ 278 virtio_ccw_register_hcalls(); 279 280 s390_enable_css_support(s390_cpu_addr2state(0)); 281 282 ret = css_create_css_image(VIRTUAL_CSSID, true); 283 284 assert(ret == 0); 285 if (css_migration_enabled()) { 286 css_register_vmstate(); 287 } 288 289 /* Create VirtIO network adapters */ 290 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 291 292 /* init consoles */ 293 if (serial_hd(0)) { 294 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 295 } 296 if (serial_hd(1)) { 297 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 298 } 299 300 /* init the TOD clock */ 301 s390_init_tod(); 302 } 303 304 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 305 DeviceState *dev, Error **errp) 306 { 307 MachineState *ms = MACHINE(hotplug_dev); 308 S390CPU *cpu = S390_CPU(dev); 309 310 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 311 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 312 313 if (dev->hotplugged) { 314 raise_irq_cpu_hotplug(); 315 } 316 } 317 318 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 319 { 320 S390CPU *cpu = S390_CPU(cs); 321 322 s390_ipl_prepare_cpu(cpu); 323 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 324 } 325 326 static void s390_machine_unprotect(S390CcwMachineState *ms) 327 { 328 s390_pv_vm_disable(); 329 ms->pv = false; 330 migrate_del_blocker(pv_mig_blocker); 331 error_free_or_abort(&pv_mig_blocker); 332 qemu_balloon_inhibit(false); 333 } 334 335 static int s390_machine_protect(S390CcwMachineState *ms) 336 { 337 Error *local_err = NULL; 338 int rc; 339 340 /* 341 * Ballooning on protected VMs needs support in the guest for 342 * sharing and unsharing balloon pages. Block ballooning for 343 * now, until we have a solution to make at least Linux guests 344 * either support it or fail gracefully. 345 */ 346 qemu_balloon_inhibit(true); 347 error_setg(&pv_mig_blocker, 348 "protected VMs are currently not migrateable."); 349 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 350 if (rc) { 351 qemu_balloon_inhibit(false); 352 error_report_err(local_err); 353 error_free_or_abort(&pv_mig_blocker); 354 return rc; 355 } 356 357 /* Create SE VM */ 358 rc = s390_pv_vm_enable(); 359 if (rc) { 360 qemu_balloon_inhibit(false); 361 migrate_del_blocker(pv_mig_blocker); 362 error_free_or_abort(&pv_mig_blocker); 363 return rc; 364 } 365 366 ms->pv = true; 367 368 /* Set SE header and unpack */ 369 rc = s390_ipl_prepare_pv_header(); 370 if (rc) { 371 goto out_err; 372 } 373 374 /* Decrypt image */ 375 rc = s390_ipl_pv_unpack(); 376 if (rc) { 377 goto out_err; 378 } 379 380 /* Verify integrity */ 381 rc = s390_pv_verify(); 382 if (rc) { 383 goto out_err; 384 } 385 return rc; 386 387 out_err: 388 s390_machine_unprotect(ms); 389 return rc; 390 } 391 392 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 393 { 394 CPUState *cs; 395 396 if (!s390_is_pv()) { 397 return; 398 } 399 /* Unsharing requires all cpus to be stopped */ 400 CPU_FOREACH(cs) { 401 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 402 } 403 s390_pv_unshare(); 404 s390_pv_perf_clear_reset(); 405 } 406 407 static void s390_machine_reset(MachineState *machine) 408 { 409 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 410 enum s390_reset reset_type; 411 CPUState *cs, *t; 412 S390CPU *cpu; 413 414 /* get the reset parameters, reset them once done */ 415 s390_ipl_get_reset_request(&cs, &reset_type); 416 417 /* all CPUs are paused and synchronized at this point */ 418 s390_cmma_reset(); 419 420 cpu = S390_CPU(cs); 421 422 switch (reset_type) { 423 case S390_RESET_EXTERNAL: 424 case S390_RESET_REIPL: 425 if (s390_is_pv()) { 426 s390_machine_unprotect(ms); 427 } 428 429 qemu_devices_reset(); 430 s390_crypto_reset(); 431 432 /* configure and start the ipl CPU only */ 433 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 434 break; 435 case S390_RESET_MODIFIED_CLEAR: 436 /* 437 * Susbsystem reset needs to be done before we unshare memory 438 * and lose access to VIRTIO structures in guest memory. 439 */ 440 subsystem_reset(); 441 s390_crypto_reset(); 442 s390_pv_prepare_reset(ms); 443 CPU_FOREACH(t) { 444 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 445 } 446 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 447 break; 448 case S390_RESET_LOAD_NORMAL: 449 /* 450 * Susbsystem reset needs to be done before we unshare memory 451 * and lose access to VIRTIO structures in guest memory. 452 */ 453 subsystem_reset(); 454 s390_pv_prepare_reset(ms); 455 CPU_FOREACH(t) { 456 if (t == cs) { 457 continue; 458 } 459 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 460 } 461 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 462 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 463 break; 464 case S390_RESET_PV: /* Subcode 10 */ 465 subsystem_reset(); 466 s390_crypto_reset(); 467 468 CPU_FOREACH(t) { 469 if (t == cs) { 470 continue; 471 } 472 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 473 } 474 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 475 476 if (s390_machine_protect(ms)) { 477 s390_pv_inject_reset_error(cs); 478 /* 479 * Continue after the diag308 so the guest knows something 480 * went wrong. 481 */ 482 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 483 return; 484 } 485 486 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 487 break; 488 default: 489 g_assert_not_reached(); 490 } 491 s390_ipl_clear_reset_request(); 492 } 493 494 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 495 DeviceState *dev, Error **errp) 496 { 497 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 498 s390_cpu_plug(hotplug_dev, dev, errp); 499 } 500 } 501 502 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 503 DeviceState *dev, Error **errp) 504 { 505 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 506 error_setg(errp, "CPU hot unplug not supported on this machine"); 507 return; 508 } 509 } 510 511 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 512 unsigned cpu_index) 513 { 514 MachineClass *mc = MACHINE_GET_CLASS(ms); 515 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 516 517 assert(cpu_index < possible_cpus->len); 518 return possible_cpus->cpus[cpu_index].props; 519 } 520 521 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 522 { 523 int i; 524 unsigned int max_cpus = ms->smp.max_cpus; 525 526 if (ms->possible_cpus) { 527 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 528 return ms->possible_cpus; 529 } 530 531 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 532 sizeof(CPUArchId) * max_cpus); 533 ms->possible_cpus->len = max_cpus; 534 for (i = 0; i < ms->possible_cpus->len; i++) { 535 ms->possible_cpus->cpus[i].type = ms->cpu_type; 536 ms->possible_cpus->cpus[i].vcpus_count = 1; 537 ms->possible_cpus->cpus[i].arch_id = i; 538 ms->possible_cpus->cpus[i].props.has_core_id = true; 539 ms->possible_cpus->cpus[i].props.core_id = i; 540 } 541 542 return ms->possible_cpus; 543 } 544 545 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 546 DeviceState *dev) 547 { 548 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 549 return HOTPLUG_HANDLER(machine); 550 } 551 return NULL; 552 } 553 554 static void s390_hot_add_cpu(MachineState *machine, 555 const int64_t id, Error **errp) 556 { 557 ObjectClass *oc; 558 559 g_assert(machine->possible_cpus->cpus[0].cpu); 560 oc = OBJECT_CLASS(CPU_GET_CLASS(machine->possible_cpus->cpus[0].cpu)); 561 562 s390x_new_cpu(object_class_get_name(oc), id, errp); 563 } 564 565 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 566 { 567 CPUState *cs = qemu_get_cpu(cpu_index); 568 569 s390_cpu_restart(S390_CPU(cs)); 570 } 571 572 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 573 { 574 /* same logic as in sclp.c */ 575 int increment_size = 20; 576 ram_addr_t newsz; 577 578 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 579 increment_size++; 580 } 581 newsz = sz >> increment_size << increment_size; 582 583 if (sz != newsz) { 584 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 585 "MB to match machine restrictions. Consider updating " 586 "the guest definition.\n", (uint64_t) (sz / MiB), 587 (uint64_t) (newsz / MiB)); 588 } 589 return newsz; 590 } 591 592 static void ccw_machine_class_init(ObjectClass *oc, void *data) 593 { 594 MachineClass *mc = MACHINE_CLASS(oc); 595 NMIClass *nc = NMI_CLASS(oc); 596 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 597 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 598 599 s390mc->ri_allowed = true; 600 s390mc->cpu_model_allowed = true; 601 s390mc->css_migration_enabled = true; 602 s390mc->hpage_1m_allowed = true; 603 mc->init = ccw_init; 604 mc->reset = s390_machine_reset; 605 mc->hot_add_cpu = s390_hot_add_cpu; 606 mc->block_default_type = IF_VIRTIO; 607 mc->no_cdrom = 1; 608 mc->no_floppy = 1; 609 mc->no_parallel = 1; 610 mc->no_sdcard = 1; 611 mc->max_cpus = S390_MAX_CPUS; 612 mc->has_hotpluggable_cpus = true; 613 assert(!mc->get_hotplug_handler); 614 mc->get_hotplug_handler = s390_get_hotplug_handler; 615 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 616 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 617 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 618 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 619 hc->plug = s390_machine_device_plug; 620 hc->unplug_request = s390_machine_device_unplug_request; 621 nc->nmi_monitor_handler = s390_nmi; 622 mc->default_ram_id = "s390.ram"; 623 } 624 625 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 626 { 627 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 628 629 return ms->aes_key_wrap; 630 } 631 632 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 633 Error **errp) 634 { 635 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 636 637 ms->aes_key_wrap = value; 638 } 639 640 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 641 { 642 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 643 644 return ms->dea_key_wrap; 645 } 646 647 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 648 Error **errp) 649 { 650 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 651 652 ms->dea_key_wrap = value; 653 } 654 655 static S390CcwMachineClass *current_mc; 656 657 /* 658 * Get the class of the s390-ccw-virtio machine that is currently in use. 659 * Note: libvirt is using the "none" machine to probe for the features of the 660 * host CPU, so in case this is called with the "none" machine, the function 661 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 662 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 663 * below return the correct default value for the "none" machine. 664 * 665 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 666 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 667 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 668 * CPU initialization and s390_has_feat() later should be sufficient. 669 */ 670 static S390CcwMachineClass *get_machine_class(void) 671 { 672 if (unlikely(!current_mc)) { 673 /* 674 * No s390 ccw machine was instantiated, we are likely to 675 * be called for the 'none' machine. The properties will 676 * have their after-initialization values. 677 */ 678 current_mc = S390_MACHINE_CLASS( 679 object_class_by_name(TYPE_S390_CCW_MACHINE)); 680 } 681 return current_mc; 682 } 683 684 bool ri_allowed(void) 685 { 686 return get_machine_class()->ri_allowed; 687 } 688 689 bool cpu_model_allowed(void) 690 { 691 return get_machine_class()->cpu_model_allowed; 692 } 693 694 bool hpage_1m_allowed(void) 695 { 696 return get_machine_class()->hpage_1m_allowed; 697 } 698 699 static char *machine_get_loadparm(Object *obj, Error **errp) 700 { 701 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 702 703 return g_memdup(ms->loadparm, sizeof(ms->loadparm)); 704 } 705 706 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 707 { 708 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 709 int i; 710 711 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 712 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 713 714 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 715 (c == ' ')) { 716 ms->loadparm[i] = c; 717 } else { 718 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 719 c, c); 720 return; 721 } 722 } 723 724 for (; i < sizeof(ms->loadparm); i++) { 725 ms->loadparm[i] = ' '; /* pad right with spaces */ 726 } 727 } 728 static inline void s390_machine_initfn(Object *obj) 729 { 730 object_property_add_bool(obj, "aes-key-wrap", 731 machine_get_aes_key_wrap, 732 machine_set_aes_key_wrap, NULL); 733 object_property_set_description(obj, "aes-key-wrap", 734 "enable/disable AES key wrapping using the CPACF wrapping key", 735 NULL); 736 object_property_set_bool(obj, true, "aes-key-wrap", NULL); 737 738 object_property_add_bool(obj, "dea-key-wrap", 739 machine_get_dea_key_wrap, 740 machine_set_dea_key_wrap, NULL); 741 object_property_set_description(obj, "dea-key-wrap", 742 "enable/disable DEA key wrapping using the CPACF wrapping key", 743 NULL); 744 object_property_set_bool(obj, true, "dea-key-wrap", NULL); 745 object_property_add_str(obj, "loadparm", 746 machine_get_loadparm, machine_set_loadparm, NULL); 747 object_property_set_description(obj, "loadparm", 748 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 749 " to upper case) to pass to machine loader, boot manager," 750 " and guest kernel", 751 NULL); 752 } 753 754 static const TypeInfo ccw_machine_info = { 755 .name = TYPE_S390_CCW_MACHINE, 756 .parent = TYPE_MACHINE, 757 .abstract = true, 758 .instance_size = sizeof(S390CcwMachineState), 759 .instance_init = s390_machine_initfn, 760 .class_size = sizeof(S390CcwMachineClass), 761 .class_init = ccw_machine_class_init, 762 .interfaces = (InterfaceInfo[]) { 763 { TYPE_NMI }, 764 { TYPE_HOTPLUG_HANDLER}, 765 { } 766 }, 767 }; 768 769 bool css_migration_enabled(void) 770 { 771 return get_machine_class()->css_migration_enabled; 772 } 773 774 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 775 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 776 void *data) \ 777 { \ 778 MachineClass *mc = MACHINE_CLASS(oc); \ 779 ccw_machine_##suffix##_class_options(mc); \ 780 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \ 781 if (latest) { \ 782 mc->alias = "s390-ccw-virtio"; \ 783 mc->is_default = true; \ 784 } \ 785 } \ 786 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 787 { \ 788 MachineState *machine = MACHINE(obj); \ 789 current_mc = S390_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 790 ccw_machine_##suffix##_instance_options(machine); \ 791 } \ 792 static const TypeInfo ccw_machine_##suffix##_info = { \ 793 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 794 .parent = TYPE_S390_CCW_MACHINE, \ 795 .class_init = ccw_machine_##suffix##_class_init, \ 796 .instance_init = ccw_machine_##suffix##_instance_init, \ 797 }; \ 798 static void ccw_machine_register_##suffix(void) \ 799 { \ 800 type_register_static(&ccw_machine_##suffix##_info); \ 801 } \ 802 type_init(ccw_machine_register_##suffix) 803 804 static void ccw_machine_5_0_instance_options(MachineState *machine) 805 { 806 } 807 808 static void ccw_machine_5_0_class_options(MachineClass *mc) 809 { 810 } 811 DEFINE_CCW_MACHINE(5_0, "5.0", true); 812 813 static void ccw_machine_4_2_instance_options(MachineState *machine) 814 { 815 ccw_machine_5_0_instance_options(machine); 816 } 817 818 static void ccw_machine_4_2_class_options(MachineClass *mc) 819 { 820 ccw_machine_5_0_class_options(mc); 821 mc->fixup_ram_size = s390_fixup_ram_size; 822 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 823 } 824 DEFINE_CCW_MACHINE(4_2, "4.2", false); 825 826 static void ccw_machine_4_1_instance_options(MachineState *machine) 827 { 828 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 829 ccw_machine_4_2_instance_options(machine); 830 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 831 } 832 833 static void ccw_machine_4_1_class_options(MachineClass *mc) 834 { 835 ccw_machine_4_2_class_options(mc); 836 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 837 } 838 DEFINE_CCW_MACHINE(4_1, "4.1", false); 839 840 static void ccw_machine_4_0_instance_options(MachineState *machine) 841 { 842 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 843 ccw_machine_4_1_instance_options(machine); 844 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 845 } 846 847 static void ccw_machine_4_0_class_options(MachineClass *mc) 848 { 849 ccw_machine_4_1_class_options(mc); 850 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 851 } 852 DEFINE_CCW_MACHINE(4_0, "4.0", false); 853 854 static void ccw_machine_3_1_instance_options(MachineState *machine) 855 { 856 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 857 ccw_machine_4_0_instance_options(machine); 858 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 859 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 860 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 861 } 862 863 static void ccw_machine_3_1_class_options(MachineClass *mc) 864 { 865 ccw_machine_4_0_class_options(mc); 866 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 867 } 868 DEFINE_CCW_MACHINE(3_1, "3.1", false); 869 870 static void ccw_machine_3_0_instance_options(MachineState *machine) 871 { 872 ccw_machine_3_1_instance_options(machine); 873 } 874 875 static void ccw_machine_3_0_class_options(MachineClass *mc) 876 { 877 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 878 879 s390mc->hpage_1m_allowed = false; 880 ccw_machine_3_1_class_options(mc); 881 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 882 } 883 DEFINE_CCW_MACHINE(3_0, "3.0", false); 884 885 static void ccw_machine_2_12_instance_options(MachineState *machine) 886 { 887 ccw_machine_3_0_instance_options(machine); 888 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 889 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 890 } 891 892 static void ccw_machine_2_12_class_options(MachineClass *mc) 893 { 894 ccw_machine_3_0_class_options(mc); 895 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 896 } 897 DEFINE_CCW_MACHINE(2_12, "2.12", false); 898 899 static void ccw_machine_2_11_instance_options(MachineState *machine) 900 { 901 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 902 ccw_machine_2_12_instance_options(machine); 903 904 /* before 2.12 we emulated the very first z900 */ 905 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 906 } 907 908 static void ccw_machine_2_11_class_options(MachineClass *mc) 909 { 910 static GlobalProperty compat[] = { 911 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 912 }; 913 914 ccw_machine_2_12_class_options(mc); 915 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 916 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 917 } 918 DEFINE_CCW_MACHINE(2_11, "2.11", false); 919 920 static void ccw_machine_2_10_instance_options(MachineState *machine) 921 { 922 ccw_machine_2_11_instance_options(machine); 923 } 924 925 static void ccw_machine_2_10_class_options(MachineClass *mc) 926 { 927 ccw_machine_2_11_class_options(mc); 928 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 929 } 930 DEFINE_CCW_MACHINE(2_10, "2.10", false); 931 932 static void ccw_machine_2_9_instance_options(MachineState *machine) 933 { 934 ccw_machine_2_10_instance_options(machine); 935 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 936 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 937 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 938 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 939 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 940 } 941 942 static void ccw_machine_2_9_class_options(MachineClass *mc) 943 { 944 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 945 static GlobalProperty compat[] = { 946 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 947 }; 948 949 ccw_machine_2_10_class_options(mc); 950 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 951 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 952 s390mc->css_migration_enabled = false; 953 } 954 DEFINE_CCW_MACHINE(2_9, "2.9", false); 955 956 static void ccw_machine_2_8_instance_options(MachineState *machine) 957 { 958 ccw_machine_2_9_instance_options(machine); 959 } 960 961 static void ccw_machine_2_8_class_options(MachineClass *mc) 962 { 963 static GlobalProperty compat[] = { 964 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 965 }; 966 967 ccw_machine_2_9_class_options(mc); 968 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 969 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 970 } 971 DEFINE_CCW_MACHINE(2_8, "2.8", false); 972 973 static void ccw_machine_2_7_instance_options(MachineState *machine) 974 { 975 ccw_machine_2_8_instance_options(machine); 976 } 977 978 static void ccw_machine_2_7_class_options(MachineClass *mc) 979 { 980 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 981 982 s390mc->cpu_model_allowed = false; 983 ccw_machine_2_8_class_options(mc); 984 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 985 } 986 DEFINE_CCW_MACHINE(2_7, "2.7", false); 987 988 static void ccw_machine_2_6_instance_options(MachineState *machine) 989 { 990 ccw_machine_2_7_instance_options(machine); 991 } 992 993 static void ccw_machine_2_6_class_options(MachineClass *mc) 994 { 995 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 996 static GlobalProperty compat[] = { 997 { TYPE_S390_IPL, "iplbext_migration", "off", }, 998 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 999 }; 1000 1001 s390mc->ri_allowed = false; 1002 ccw_machine_2_7_class_options(mc); 1003 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1004 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1005 } 1006 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1007 1008 static void ccw_machine_2_5_instance_options(MachineState *machine) 1009 { 1010 ccw_machine_2_6_instance_options(machine); 1011 } 1012 1013 static void ccw_machine_2_5_class_options(MachineClass *mc) 1014 { 1015 ccw_machine_2_6_class_options(mc); 1016 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1017 } 1018 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1019 1020 static void ccw_machine_2_4_instance_options(MachineState *machine) 1021 { 1022 ccw_machine_2_5_instance_options(machine); 1023 } 1024 1025 static void ccw_machine_2_4_class_options(MachineClass *mc) 1026 { 1027 static GlobalProperty compat[] = { 1028 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1029 { "virtio-blk-ccw", "max_revision", "0", }, 1030 { "virtio-balloon-ccw", "max_revision", "0", }, 1031 { "virtio-serial-ccw", "max_revision", "0", }, 1032 { "virtio-9p-ccw", "max_revision", "0", }, 1033 { "virtio-rng-ccw", "max_revision", "0", }, 1034 { "virtio-net-ccw", "max_revision", "0", }, 1035 { "virtio-scsi-ccw", "max_revision", "0", }, 1036 { "vhost-scsi-ccw", "max_revision", "0", }, 1037 }; 1038 1039 ccw_machine_2_5_class_options(mc); 1040 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1041 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1042 } 1043 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1044 1045 static void ccw_machine_register_types(void) 1046 { 1047 type_register_static(&ccw_machine_info); 1048 } 1049 1050 type_init(ccw_machine_register_types) 1051