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 "hw/s390x/s390-pci-bus.h" 29 #include "sysemu/reset.h" 30 #include "hw/s390x/storage-keys.h" 31 #include "hw/s390x/storage-attributes.h" 32 #include "hw/s390x/event-facility.h" 33 #include "ipl.h" 34 #include "hw/s390x/s390-virtio-ccw.h" 35 #include "hw/s390x/css-bridge.h" 36 #include "hw/s390x/ap-bridge.h" 37 #include "migration/register.h" 38 #include "cpu_models.h" 39 #include "hw/nmi.h" 40 #include "hw/qdev-properties.h" 41 #include "hw/s390x/tod.h" 42 #include "sysemu/sysemu.h" 43 #include "hw/s390x/pv.h" 44 #include "migration/blocker.h" 45 46 static Error *pv_mig_blocker; 47 48 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 49 { 50 static MachineState *ms; 51 52 if (!ms) { 53 ms = MACHINE(qdev_get_machine()); 54 g_assert(ms->possible_cpus); 55 } 56 57 /* CPU address corresponds to the core_id and the index */ 58 if (cpu_addr >= ms->possible_cpus->len) { 59 return NULL; 60 } 61 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 62 } 63 64 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 65 Error **errp) 66 { 67 S390CPU *cpu = S390_CPU(object_new(typename)); 68 S390CPU *ret = NULL; 69 70 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) { 71 goto out; 72 } 73 if (!qdev_realize(DEVICE(cpu), NULL, errp)) { 74 goto out; 75 } 76 ret = cpu; 77 78 out: 79 object_unref(OBJECT(cpu)); 80 return ret; 81 } 82 83 static void s390_init_cpus(MachineState *machine) 84 { 85 MachineClass *mc = MACHINE_GET_CLASS(machine); 86 int i; 87 88 /* initialize possible_cpus */ 89 mc->possible_cpu_arch_ids(machine); 90 91 for (i = 0; i < machine->smp.cpus; i++) { 92 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 93 } 94 } 95 96 static const char *const reset_dev_types[] = { 97 TYPE_VIRTUAL_CSS_BRIDGE, 98 "s390-sclp-event-facility", 99 "s390-flic", 100 "diag288", 101 TYPE_S390_PCI_HOST_BRIDGE, 102 }; 103 104 static void subsystem_reset(void) 105 { 106 DeviceState *dev; 107 int i; 108 109 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 110 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 111 if (dev) { 112 qdev_reset_all(dev); 113 } 114 } 115 } 116 117 static int virtio_ccw_hcall_notify(const uint64_t *args) 118 { 119 uint64_t subch_id = args[0]; 120 uint64_t queue = args[1]; 121 SubchDev *sch; 122 int cssid, ssid, schid, m; 123 124 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 125 return -EINVAL; 126 } 127 sch = css_find_subch(m, cssid, ssid, schid); 128 if (!sch || !css_subch_visible(sch)) { 129 return -EINVAL; 130 } 131 if (queue >= VIRTIO_QUEUE_MAX) { 132 return -EINVAL; 133 } 134 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 135 return 0; 136 137 } 138 139 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 140 { 141 uint64_t mem = args[0]; 142 MachineState *ms = MACHINE(qdev_get_machine()); 143 144 if (mem < ms->ram_size) { 145 /* Early printk */ 146 return 0; 147 } 148 return -EINVAL; 149 } 150 151 static void virtio_ccw_register_hcalls(void) 152 { 153 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 154 virtio_ccw_hcall_notify); 155 /* Tolerate early printk. */ 156 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 157 virtio_ccw_hcall_early_printk); 158 } 159 160 static void s390_memory_init(MemoryRegion *ram) 161 { 162 MemoryRegion *sysmem = get_system_memory(); 163 164 /* allocate RAM for core */ 165 memory_region_add_subregion(sysmem, 0, ram); 166 167 /* 168 * Configure the maximum page size. As no memory devices were created 169 * yet, this is the page size of initial memory only. 170 */ 171 s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal); 172 /* Initialize storage key device */ 173 s390_skeys_init(); 174 /* Initialize storage attributes device */ 175 s390_stattrib_init(); 176 } 177 178 static void s390_init_ipl_dev(const char *kernel_filename, 179 const char *kernel_cmdline, 180 const char *initrd_filename, const char *firmware, 181 const char *netboot_fw, bool enforce_bios) 182 { 183 Object *new = object_new(TYPE_S390_IPL); 184 DeviceState *dev = DEVICE(new); 185 char *netboot_fw_prop; 186 187 if (kernel_filename) { 188 qdev_prop_set_string(dev, "kernel", kernel_filename); 189 } 190 if (initrd_filename) { 191 qdev_prop_set_string(dev, "initrd", initrd_filename); 192 } 193 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 194 qdev_prop_set_string(dev, "firmware", firmware); 195 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 196 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 197 if (!strlen(netboot_fw_prop)) { 198 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 199 } 200 g_free(netboot_fw_prop); 201 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 202 new); 203 object_unref(new); 204 qdev_realize(dev, NULL, &error_fatal); 205 } 206 207 static void s390_create_virtio_net(BusState *bus, const char *name) 208 { 209 int i; 210 211 for (i = 0; i < nb_nics; i++) { 212 NICInfo *nd = &nd_table[i]; 213 DeviceState *dev; 214 215 if (!nd->model) { 216 nd->model = g_strdup("virtio"); 217 } 218 219 qemu_check_nic_model(nd, "virtio"); 220 221 dev = qdev_new(name); 222 qdev_set_nic_properties(dev, nd); 223 qdev_realize_and_unref(dev, bus, &error_fatal); 224 } 225 } 226 227 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 228 { 229 DeviceState *dev; 230 231 dev = qdev_new(type); 232 qdev_prop_set_chr(dev, "chardev", chardev); 233 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 234 } 235 236 static void ccw_init(MachineState *machine) 237 { 238 int ret; 239 VirtualCssBus *css_bus; 240 DeviceState *dev; 241 242 s390_sclp_init(); 243 /* init memory + setup max page size. Required for the CPU model */ 244 s390_memory_init(machine->ram); 245 246 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 247 s390_init_cpus(machine); 248 249 /* Need CPU model to be determined before we can set up PV */ 250 s390_pv_init(machine->cgs, &error_fatal); 251 252 s390_flic_init(); 253 254 /* init the SIGP facility */ 255 s390_init_sigp(); 256 257 /* create AP bridge and bus(es) */ 258 s390_init_ap(); 259 260 /* get a BUS */ 261 css_bus = virtual_css_bus_init(); 262 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 263 machine->initrd_filename, 264 machine->firmware ?: "s390-ccw.img", 265 "s390-netboot.img", true); 266 267 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 268 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 269 OBJECT(dev)); 270 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 271 272 /* register hypercalls */ 273 virtio_ccw_register_hcalls(); 274 275 s390_enable_css_support(s390_cpu_addr2state(0)); 276 277 ret = css_create_css_image(VIRTUAL_CSSID, true); 278 279 assert(ret == 0); 280 if (css_migration_enabled()) { 281 css_register_vmstate(); 282 } 283 284 /* Create VirtIO network adapters */ 285 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 286 287 /* init consoles */ 288 if (serial_hd(0)) { 289 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 290 } 291 if (serial_hd(1)) { 292 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 293 } 294 295 /* init the TOD clock */ 296 s390_init_tod(); 297 } 298 299 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 300 DeviceState *dev, Error **errp) 301 { 302 MachineState *ms = MACHINE(hotplug_dev); 303 S390CPU *cpu = S390_CPU(dev); 304 305 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 306 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 307 308 if (dev->hotplugged) { 309 raise_irq_cpu_hotplug(); 310 } 311 } 312 313 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 314 { 315 S390CPU *cpu = S390_CPU(cs); 316 317 s390_ipl_prepare_cpu(cpu); 318 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 319 } 320 321 static void s390_machine_unprotect(S390CcwMachineState *ms) 322 { 323 s390_pv_vm_disable(); 324 ms->pv = false; 325 migrate_del_blocker(pv_mig_blocker); 326 error_free_or_abort(&pv_mig_blocker); 327 ram_block_discard_disable(false); 328 } 329 330 static int s390_machine_protect(S390CcwMachineState *ms) 331 { 332 Error *local_err = NULL; 333 int rc; 334 335 /* 336 * Discarding of memory in RAM blocks does not work as expected with 337 * protected VMs. Sharing and unsharing pages would be required. Disable 338 * it for now, until until we have a solution to make at least Linux 339 * guests either support it (e.g., virtio-balloon) or fail gracefully. 340 */ 341 rc = ram_block_discard_disable(true); 342 if (rc) { 343 error_report("protected VMs: cannot disable RAM discard"); 344 return rc; 345 } 346 347 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 ram_block_discard_disable(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 ram_block_discard_disable(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_prep_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 } 491 492 CPU_FOREACH(t) { 493 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 494 } 495 s390_ipl_clear_reset_request(); 496 } 497 498 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 499 DeviceState *dev, Error **errp) 500 { 501 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 502 s390_cpu_plug(hotplug_dev, dev, errp); 503 } 504 } 505 506 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 507 DeviceState *dev, Error **errp) 508 { 509 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 510 error_setg(errp, "CPU hot unplug not supported on this machine"); 511 return; 512 } 513 } 514 515 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 516 unsigned cpu_index) 517 { 518 MachineClass *mc = MACHINE_GET_CLASS(ms); 519 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 520 521 assert(cpu_index < possible_cpus->len); 522 return possible_cpus->cpus[cpu_index].props; 523 } 524 525 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 526 { 527 int i; 528 unsigned int max_cpus = ms->smp.max_cpus; 529 530 if (ms->possible_cpus) { 531 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 532 return ms->possible_cpus; 533 } 534 535 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 536 sizeof(CPUArchId) * max_cpus); 537 ms->possible_cpus->len = max_cpus; 538 for (i = 0; i < ms->possible_cpus->len; i++) { 539 ms->possible_cpus->cpus[i].type = ms->cpu_type; 540 ms->possible_cpus->cpus[i].vcpus_count = 1; 541 ms->possible_cpus->cpus[i].arch_id = i; 542 ms->possible_cpus->cpus[i].props.has_core_id = true; 543 ms->possible_cpus->cpus[i].props.core_id = i; 544 } 545 546 return ms->possible_cpus; 547 } 548 549 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 550 DeviceState *dev) 551 { 552 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 553 return HOTPLUG_HANDLER(machine); 554 } 555 return NULL; 556 } 557 558 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 559 { 560 CPUState *cs = qemu_get_cpu(cpu_index); 561 562 s390_cpu_restart(S390_CPU(cs)); 563 } 564 565 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 566 { 567 /* same logic as in sclp.c */ 568 int increment_size = 20; 569 ram_addr_t newsz; 570 571 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 572 increment_size++; 573 } 574 newsz = sz >> increment_size << increment_size; 575 576 if (sz != newsz) { 577 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 578 "MB to match machine restrictions. Consider updating " 579 "the guest definition.\n", (uint64_t) (sz / MiB), 580 (uint64_t) (newsz / MiB)); 581 } 582 return newsz; 583 } 584 585 static void ccw_machine_class_init(ObjectClass *oc, void *data) 586 { 587 MachineClass *mc = MACHINE_CLASS(oc); 588 NMIClass *nc = NMI_CLASS(oc); 589 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 590 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 591 592 s390mc->ri_allowed = true; 593 s390mc->cpu_model_allowed = true; 594 s390mc->css_migration_enabled = true; 595 s390mc->hpage_1m_allowed = true; 596 mc->init = ccw_init; 597 mc->reset = s390_machine_reset; 598 mc->block_default_type = IF_VIRTIO; 599 mc->no_cdrom = 1; 600 mc->no_floppy = 1; 601 mc->no_parallel = 1; 602 mc->no_sdcard = 1; 603 mc->max_cpus = S390_MAX_CPUS; 604 mc->has_hotpluggable_cpus = true; 605 assert(!mc->get_hotplug_handler); 606 mc->get_hotplug_handler = s390_get_hotplug_handler; 607 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 608 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 609 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 610 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 611 hc->plug = s390_machine_device_plug; 612 hc->unplug_request = s390_machine_device_unplug_request; 613 nc->nmi_monitor_handler = s390_nmi; 614 mc->default_ram_id = "s390.ram"; 615 } 616 617 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 618 { 619 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 620 621 return ms->aes_key_wrap; 622 } 623 624 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 625 Error **errp) 626 { 627 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 628 629 ms->aes_key_wrap = value; 630 } 631 632 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 633 { 634 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 635 636 return ms->dea_key_wrap; 637 } 638 639 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 640 Error **errp) 641 { 642 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 643 644 ms->dea_key_wrap = value; 645 } 646 647 static S390CcwMachineClass *current_mc; 648 649 /* 650 * Get the class of the s390-ccw-virtio machine that is currently in use. 651 * Note: libvirt is using the "none" machine to probe for the features of the 652 * host CPU, so in case this is called with the "none" machine, the function 653 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 654 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 655 * below return the correct default value for the "none" machine. 656 * 657 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 658 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 659 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 660 * CPU initialization and s390_has_feat() later should be sufficient. 661 */ 662 static S390CcwMachineClass *get_machine_class(void) 663 { 664 if (unlikely(!current_mc)) { 665 /* 666 * No s390 ccw machine was instantiated, we are likely to 667 * be called for the 'none' machine. The properties will 668 * have their after-initialization values. 669 */ 670 current_mc = S390_CCW_MACHINE_CLASS( 671 object_class_by_name(TYPE_S390_CCW_MACHINE)); 672 } 673 return current_mc; 674 } 675 676 bool ri_allowed(void) 677 { 678 return get_machine_class()->ri_allowed; 679 } 680 681 bool cpu_model_allowed(void) 682 { 683 return get_machine_class()->cpu_model_allowed; 684 } 685 686 bool hpage_1m_allowed(void) 687 { 688 return get_machine_class()->hpage_1m_allowed; 689 } 690 691 static char *machine_get_loadparm(Object *obj, Error **errp) 692 { 693 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 694 695 /* make a NUL-terminated string */ 696 return g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 697 } 698 699 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 700 { 701 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 702 int i; 703 704 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 705 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 706 707 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 708 (c == ' ')) { 709 ms->loadparm[i] = c; 710 } else { 711 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 712 c, c); 713 return; 714 } 715 } 716 717 for (; i < sizeof(ms->loadparm); i++) { 718 ms->loadparm[i] = ' '; /* pad right with spaces */ 719 } 720 } 721 static inline void s390_machine_initfn(Object *obj) 722 { 723 object_property_add_bool(obj, "aes-key-wrap", 724 machine_get_aes_key_wrap, 725 machine_set_aes_key_wrap); 726 object_property_set_description(obj, "aes-key-wrap", 727 "enable/disable AES key wrapping using the CPACF wrapping key"); 728 object_property_set_bool(obj, "aes-key-wrap", true, NULL); 729 730 object_property_add_bool(obj, "dea-key-wrap", 731 machine_get_dea_key_wrap, 732 machine_set_dea_key_wrap); 733 object_property_set_description(obj, "dea-key-wrap", 734 "enable/disable DEA key wrapping using the CPACF wrapping key"); 735 object_property_set_bool(obj, "dea-key-wrap", true, NULL); 736 object_property_add_str(obj, "loadparm", 737 machine_get_loadparm, machine_set_loadparm); 738 object_property_set_description(obj, "loadparm", 739 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 740 " to upper case) to pass to machine loader, boot manager," 741 " and guest kernel"); 742 } 743 744 static const TypeInfo ccw_machine_info = { 745 .name = TYPE_S390_CCW_MACHINE, 746 .parent = TYPE_MACHINE, 747 .abstract = true, 748 .instance_size = sizeof(S390CcwMachineState), 749 .instance_init = s390_machine_initfn, 750 .class_size = sizeof(S390CcwMachineClass), 751 .class_init = ccw_machine_class_init, 752 .interfaces = (InterfaceInfo[]) { 753 { TYPE_NMI }, 754 { TYPE_HOTPLUG_HANDLER}, 755 { } 756 }, 757 }; 758 759 bool css_migration_enabled(void) 760 { 761 return get_machine_class()->css_migration_enabled; 762 } 763 764 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 765 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 766 void *data) \ 767 { \ 768 MachineClass *mc = MACHINE_CLASS(oc); \ 769 ccw_machine_##suffix##_class_options(mc); \ 770 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \ 771 if (latest) { \ 772 mc->alias = "s390-ccw-virtio"; \ 773 mc->is_default = true; \ 774 } \ 775 } \ 776 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 777 { \ 778 MachineState *machine = MACHINE(obj); \ 779 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 780 ccw_machine_##suffix##_instance_options(machine); \ 781 } \ 782 static const TypeInfo ccw_machine_##suffix##_info = { \ 783 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 784 .parent = TYPE_S390_CCW_MACHINE, \ 785 .class_init = ccw_machine_##suffix##_class_init, \ 786 .instance_init = ccw_machine_##suffix##_instance_init, \ 787 }; \ 788 static void ccw_machine_register_##suffix(void) \ 789 { \ 790 type_register_static(&ccw_machine_##suffix##_info); \ 791 } \ 792 type_init(ccw_machine_register_##suffix) 793 794 static void ccw_machine_6_1_instance_options(MachineState *machine) 795 { 796 } 797 798 static void ccw_machine_6_1_class_options(MachineClass *mc) 799 { 800 } 801 DEFINE_CCW_MACHINE(6_1, "6.1", true); 802 803 static void ccw_machine_6_0_instance_options(MachineState *machine) 804 { 805 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 }; 806 807 ccw_machine_6_1_instance_options(machine); 808 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 809 } 810 811 static void ccw_machine_6_0_class_options(MachineClass *mc) 812 { 813 ccw_machine_6_1_class_options(mc); 814 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 815 } 816 DEFINE_CCW_MACHINE(6_0, "6.0", false); 817 818 static void ccw_machine_5_2_instance_options(MachineState *machine) 819 { 820 ccw_machine_6_0_instance_options(machine); 821 } 822 823 static void ccw_machine_5_2_class_options(MachineClass *mc) 824 { 825 ccw_machine_6_0_class_options(mc); 826 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 827 } 828 DEFINE_CCW_MACHINE(5_2, "5.2", false); 829 830 static void ccw_machine_5_1_instance_options(MachineState *machine) 831 { 832 ccw_machine_5_2_instance_options(machine); 833 } 834 835 static void ccw_machine_5_1_class_options(MachineClass *mc) 836 { 837 ccw_machine_5_2_class_options(mc); 838 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 839 } 840 DEFINE_CCW_MACHINE(5_1, "5.1", false); 841 842 static void ccw_machine_5_0_instance_options(MachineState *machine) 843 { 844 ccw_machine_5_1_instance_options(machine); 845 } 846 847 static void ccw_machine_5_0_class_options(MachineClass *mc) 848 { 849 ccw_machine_5_1_class_options(mc); 850 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 851 } 852 DEFINE_CCW_MACHINE(5_0, "5.0", false); 853 854 static void ccw_machine_4_2_instance_options(MachineState *machine) 855 { 856 ccw_machine_5_0_instance_options(machine); 857 } 858 859 static void ccw_machine_4_2_class_options(MachineClass *mc) 860 { 861 ccw_machine_5_0_class_options(mc); 862 mc->fixup_ram_size = s390_fixup_ram_size; 863 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 864 } 865 DEFINE_CCW_MACHINE(4_2, "4.2", false); 866 867 static void ccw_machine_4_1_instance_options(MachineState *machine) 868 { 869 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 870 ccw_machine_4_2_instance_options(machine); 871 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 872 } 873 874 static void ccw_machine_4_1_class_options(MachineClass *mc) 875 { 876 ccw_machine_4_2_class_options(mc); 877 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 878 } 879 DEFINE_CCW_MACHINE(4_1, "4.1", false); 880 881 static void ccw_machine_4_0_instance_options(MachineState *machine) 882 { 883 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 884 ccw_machine_4_1_instance_options(machine); 885 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 886 } 887 888 static void ccw_machine_4_0_class_options(MachineClass *mc) 889 { 890 ccw_machine_4_1_class_options(mc); 891 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 892 } 893 DEFINE_CCW_MACHINE(4_0, "4.0", false); 894 895 static void ccw_machine_3_1_instance_options(MachineState *machine) 896 { 897 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 898 ccw_machine_4_0_instance_options(machine); 899 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 900 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 901 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 902 } 903 904 static void ccw_machine_3_1_class_options(MachineClass *mc) 905 { 906 ccw_machine_4_0_class_options(mc); 907 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 908 } 909 DEFINE_CCW_MACHINE(3_1, "3.1", false); 910 911 static void ccw_machine_3_0_instance_options(MachineState *machine) 912 { 913 ccw_machine_3_1_instance_options(machine); 914 } 915 916 static void ccw_machine_3_0_class_options(MachineClass *mc) 917 { 918 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 919 920 s390mc->hpage_1m_allowed = false; 921 ccw_machine_3_1_class_options(mc); 922 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 923 } 924 DEFINE_CCW_MACHINE(3_0, "3.0", false); 925 926 static void ccw_machine_2_12_instance_options(MachineState *machine) 927 { 928 ccw_machine_3_0_instance_options(machine); 929 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 930 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 931 } 932 933 static void ccw_machine_2_12_class_options(MachineClass *mc) 934 { 935 ccw_machine_3_0_class_options(mc); 936 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 937 } 938 DEFINE_CCW_MACHINE(2_12, "2.12", false); 939 940 static void ccw_machine_2_11_instance_options(MachineState *machine) 941 { 942 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 943 ccw_machine_2_12_instance_options(machine); 944 945 /* before 2.12 we emulated the very first z900 */ 946 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 947 } 948 949 static void ccw_machine_2_11_class_options(MachineClass *mc) 950 { 951 static GlobalProperty compat[] = { 952 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 953 }; 954 955 ccw_machine_2_12_class_options(mc); 956 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 957 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 958 } 959 DEFINE_CCW_MACHINE(2_11, "2.11", false); 960 961 static void ccw_machine_2_10_instance_options(MachineState *machine) 962 { 963 ccw_machine_2_11_instance_options(machine); 964 } 965 966 static void ccw_machine_2_10_class_options(MachineClass *mc) 967 { 968 ccw_machine_2_11_class_options(mc); 969 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 970 } 971 DEFINE_CCW_MACHINE(2_10, "2.10", false); 972 973 static void ccw_machine_2_9_instance_options(MachineState *machine) 974 { 975 ccw_machine_2_10_instance_options(machine); 976 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 977 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 978 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 979 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 980 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 981 } 982 983 static void ccw_machine_2_9_class_options(MachineClass *mc) 984 { 985 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 986 static GlobalProperty compat[] = { 987 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 988 }; 989 990 ccw_machine_2_10_class_options(mc); 991 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 992 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 993 s390mc->css_migration_enabled = false; 994 } 995 DEFINE_CCW_MACHINE(2_9, "2.9", false); 996 997 static void ccw_machine_2_8_instance_options(MachineState *machine) 998 { 999 ccw_machine_2_9_instance_options(machine); 1000 } 1001 1002 static void ccw_machine_2_8_class_options(MachineClass *mc) 1003 { 1004 static GlobalProperty compat[] = { 1005 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 1006 }; 1007 1008 ccw_machine_2_9_class_options(mc); 1009 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 1010 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1011 } 1012 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1013 1014 static void ccw_machine_2_7_instance_options(MachineState *machine) 1015 { 1016 ccw_machine_2_8_instance_options(machine); 1017 } 1018 1019 static void ccw_machine_2_7_class_options(MachineClass *mc) 1020 { 1021 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1022 1023 s390mc->cpu_model_allowed = false; 1024 ccw_machine_2_8_class_options(mc); 1025 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1026 } 1027 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1028 1029 static void ccw_machine_2_6_instance_options(MachineState *machine) 1030 { 1031 ccw_machine_2_7_instance_options(machine); 1032 } 1033 1034 static void ccw_machine_2_6_class_options(MachineClass *mc) 1035 { 1036 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1037 static GlobalProperty compat[] = { 1038 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1039 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1040 }; 1041 1042 s390mc->ri_allowed = false; 1043 ccw_machine_2_7_class_options(mc); 1044 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1045 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1046 } 1047 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1048 1049 static void ccw_machine_2_5_instance_options(MachineState *machine) 1050 { 1051 ccw_machine_2_6_instance_options(machine); 1052 } 1053 1054 static void ccw_machine_2_5_class_options(MachineClass *mc) 1055 { 1056 ccw_machine_2_6_class_options(mc); 1057 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1058 } 1059 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1060 1061 static void ccw_machine_2_4_instance_options(MachineState *machine) 1062 { 1063 ccw_machine_2_5_instance_options(machine); 1064 } 1065 1066 static void ccw_machine_2_4_class_options(MachineClass *mc) 1067 { 1068 static GlobalProperty compat[] = { 1069 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1070 { "virtio-blk-ccw", "max_revision", "0", }, 1071 { "virtio-balloon-ccw", "max_revision", "0", }, 1072 { "virtio-serial-ccw", "max_revision", "0", }, 1073 { "virtio-9p-ccw", "max_revision", "0", }, 1074 { "virtio-rng-ccw", "max_revision", "0", }, 1075 { "virtio-net-ccw", "max_revision", "0", }, 1076 { "virtio-scsi-ccw", "max_revision", "0", }, 1077 { "vhost-scsi-ccw", "max_revision", "0", }, 1078 }; 1079 1080 ccw_machine_2_5_class_options(mc); 1081 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1082 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1083 } 1084 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1085 1086 static void ccw_machine_register_types(void) 1087 { 1088 type_register_static(&ccw_machine_info); 1089 } 1090 1091 type_init(ccw_machine_register_types) 1092