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/boards.h" 21 #include "hw/s390x/s390-virtio-hcall.h" 22 #include "hw/s390x/sclp.h" 23 #include "hw/s390x/s390_flic.h" 24 #include "hw/s390x/ioinst.h" 25 #include "hw/s390x/css.h" 26 #include "virtio-ccw.h" 27 #include "qemu/config-file.h" 28 #include "qemu/ctype.h" 29 #include "qemu/error-report.h" 30 #include "qemu/option.h" 31 #include "qemu/qemu-print.h" 32 #include "hw/s390x/s390-pci-bus.h" 33 #include "sysemu/reset.h" 34 #include "hw/s390x/storage-keys.h" 35 #include "hw/s390x/storage-attributes.h" 36 #include "hw/s390x/event-facility.h" 37 #include "ipl.h" 38 #include "hw/s390x/s390-virtio-ccw.h" 39 #include "hw/s390x/css-bridge.h" 40 #include "hw/s390x/ap-bridge.h" 41 #include "migration/register.h" 42 #include "cpu_models.h" 43 #include "hw/nmi.h" 44 #include "hw/qdev-properties.h" 45 #include "hw/s390x/tod.h" 46 #include "sysemu/sysemu.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 S390CPU *ret = NULL; 73 74 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) { 75 goto out; 76 } 77 if (!qdev_realize(DEVICE(cpu), NULL, errp)) { 78 goto out; 79 } 80 ret = cpu; 81 82 out: 83 object_unref(OBJECT(cpu)); 84 return ret; 85 } 86 87 static void s390_init_cpus(MachineState *machine) 88 { 89 MachineClass *mc = MACHINE_GET_CLASS(machine); 90 int i; 91 92 /* initialize possible_cpus */ 93 mc->possible_cpu_arch_ids(machine); 94 95 for (i = 0; i < machine->smp.cpus; i++) { 96 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 97 } 98 } 99 100 static const char *const reset_dev_types[] = { 101 TYPE_VIRTUAL_CSS_BRIDGE, 102 "s390-sclp-event-facility", 103 "s390-flic", 104 "diag288", 105 TYPE_S390_PCI_HOST_BRIDGE, 106 }; 107 108 static void subsystem_reset(void) 109 { 110 DeviceState *dev; 111 int i; 112 113 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 114 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 115 if (dev) { 116 qdev_reset_all(dev); 117 } 118 } 119 } 120 121 static int virtio_ccw_hcall_notify(const uint64_t *args) 122 { 123 uint64_t subch_id = args[0]; 124 uint64_t queue = args[1]; 125 SubchDev *sch; 126 int cssid, ssid, schid, m; 127 128 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 129 return -EINVAL; 130 } 131 sch = css_find_subch(m, cssid, ssid, schid); 132 if (!sch || !css_subch_visible(sch)) { 133 return -EINVAL; 134 } 135 if (queue >= VIRTIO_QUEUE_MAX) { 136 return -EINVAL; 137 } 138 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 139 return 0; 140 141 } 142 143 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 144 { 145 uint64_t mem = args[0]; 146 MachineState *ms = MACHINE(qdev_get_machine()); 147 148 if (mem < ms->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(); 167 168 /* allocate RAM for core */ 169 memory_region_add_subregion(sysmem, 0, ram); 170 171 /* 172 * Configure the maximum page size. As no memory devices were created 173 * yet, this is the page size of initial memory only. 174 */ 175 s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal); 176 /* Initialize storage key device */ 177 s390_skeys_init(); 178 /* Initialize storage attributes device */ 179 s390_stattrib_init(); 180 } 181 182 static void s390_init_ipl_dev(const char *kernel_filename, 183 const char *kernel_cmdline, 184 const char *initrd_filename, const char *firmware, 185 const char *netboot_fw, bool enforce_bios) 186 { 187 Object *new = object_new(TYPE_S390_IPL); 188 DeviceState *dev = DEVICE(new); 189 char *netboot_fw_prop; 190 191 if (kernel_filename) { 192 qdev_prop_set_string(dev, "kernel", kernel_filename); 193 } 194 if (initrd_filename) { 195 qdev_prop_set_string(dev, "initrd", initrd_filename); 196 } 197 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 198 qdev_prop_set_string(dev, "firmware", firmware); 199 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 200 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 201 if (!strlen(netboot_fw_prop)) { 202 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 203 } 204 g_free(netboot_fw_prop); 205 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 206 new); 207 object_unref(new); 208 qdev_realize(dev, NULL, &error_fatal); 209 } 210 211 static void s390_create_virtio_net(BusState *bus, const char *name) 212 { 213 int i; 214 215 for (i = 0; i < nb_nics; i++) { 216 NICInfo *nd = &nd_table[i]; 217 DeviceState *dev; 218 219 if (!nd->model) { 220 nd->model = g_strdup("virtio"); 221 } 222 223 qemu_check_nic_model(nd, "virtio"); 224 225 dev = qdev_new(name); 226 qdev_set_nic_properties(dev, nd); 227 qdev_realize_and_unref(dev, bus, &error_fatal); 228 } 229 } 230 231 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 232 { 233 DeviceState *dev; 234 235 dev = qdev_new(type); 236 qdev_prop_set_chr(dev, "chardev", chardev); 237 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 238 } 239 240 static void ccw_init(MachineState *machine) 241 { 242 int ret; 243 VirtualCssBus *css_bus; 244 DeviceState *dev; 245 246 s390_sclp_init(); 247 /* init memory + setup max page size. Required for the CPU model */ 248 s390_memory_init(machine->ram); 249 250 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 251 s390_init_cpus(machine); 252 253 s390_flic_init(); 254 255 /* init the SIGP facility */ 256 s390_init_sigp(); 257 258 /* create AP bridge and bus(es) */ 259 s390_init_ap(); 260 261 /* get a BUS */ 262 css_bus = virtual_css_bus_init(); 263 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 264 machine->initrd_filename, 265 machine->firmware ?: "s390-ccw.img", 266 "s390-netboot.img", true); 267 268 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 269 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 270 OBJECT(dev)); 271 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 272 273 /* register hypercalls */ 274 virtio_ccw_register_hcalls(); 275 276 s390_enable_css_support(s390_cpu_addr2state(0)); 277 278 ret = css_create_css_image(VIRTUAL_CSSID, true); 279 280 assert(ret == 0); 281 if (css_migration_enabled()) { 282 css_register_vmstate(); 283 } 284 285 /* Create VirtIO network adapters */ 286 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 287 288 /* init consoles */ 289 if (serial_hd(0)) { 290 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 291 } 292 if (serial_hd(1)) { 293 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 294 } 295 296 /* init the TOD clock */ 297 s390_init_tod(); 298 } 299 300 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 301 DeviceState *dev, Error **errp) 302 { 303 MachineState *ms = MACHINE(hotplug_dev); 304 S390CPU *cpu = S390_CPU(dev); 305 306 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 307 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 308 309 if (dev->hotplugged) { 310 raise_irq_cpu_hotplug(); 311 } 312 } 313 314 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 315 { 316 S390CPU *cpu = S390_CPU(cs); 317 318 s390_ipl_prepare_cpu(cpu); 319 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 320 } 321 322 static void s390_machine_unprotect(S390CcwMachineState *ms) 323 { 324 s390_pv_vm_disable(); 325 ms->pv = false; 326 migrate_del_blocker(pv_mig_blocker); 327 error_free_or_abort(&pv_mig_blocker); 328 ram_block_discard_disable(false); 329 } 330 331 static int s390_machine_protect(S390CcwMachineState *ms) 332 { 333 Error *local_err = NULL; 334 int rc; 335 336 /* 337 * Discarding of memory in RAM blocks does not work as expected with 338 * protected VMs. Sharing and unsharing pages would be required. Disable 339 * it for now, until until we have a solution to make at least Linux 340 * guests either support it (e.g., virtio-balloon) or fail gracefully. 341 */ 342 rc = ram_block_discard_disable(true); 343 if (rc) { 344 error_report("protected VMs: cannot disable RAM discard"); 345 return rc; 346 } 347 348 error_setg(&pv_mig_blocker, 349 "protected VMs are currently not migrateable."); 350 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 351 if (rc) { 352 ram_block_discard_disable(false); 353 error_report_err(local_err); 354 error_free_or_abort(&pv_mig_blocker); 355 return rc; 356 } 357 358 /* Create SE VM */ 359 rc = s390_pv_vm_enable(); 360 if (rc) { 361 ram_block_discard_disable(false); 362 migrate_del_blocker(pv_mig_blocker); 363 error_free_or_abort(&pv_mig_blocker); 364 return rc; 365 } 366 367 ms->pv = true; 368 369 /* Set SE header and unpack */ 370 rc = s390_ipl_prepare_pv_header(); 371 if (rc) { 372 goto out_err; 373 } 374 375 /* Decrypt image */ 376 rc = s390_ipl_pv_unpack(); 377 if (rc) { 378 goto out_err; 379 } 380 381 /* Verify integrity */ 382 rc = s390_pv_verify(); 383 if (rc) { 384 goto out_err; 385 } 386 return rc; 387 388 out_err: 389 s390_machine_unprotect(ms); 390 return rc; 391 } 392 393 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 394 { 395 CPUState *cs; 396 397 if (!s390_is_pv()) { 398 return; 399 } 400 /* Unsharing requires all cpus to be stopped */ 401 CPU_FOREACH(cs) { 402 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 403 } 404 s390_pv_unshare(); 405 s390_pv_prep_reset(); 406 } 407 408 static void s390_machine_reset(MachineState *machine) 409 { 410 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 411 enum s390_reset reset_type; 412 CPUState *cs, *t; 413 S390CPU *cpu; 414 415 /* get the reset parameters, reset them once done */ 416 s390_ipl_get_reset_request(&cs, &reset_type); 417 418 /* all CPUs are paused and synchronized at this point */ 419 s390_cmma_reset(); 420 421 cpu = S390_CPU(cs); 422 423 switch (reset_type) { 424 case S390_RESET_EXTERNAL: 425 case S390_RESET_REIPL: 426 if (s390_is_pv()) { 427 s390_machine_unprotect(ms); 428 } 429 430 qemu_devices_reset(); 431 s390_crypto_reset(); 432 433 /* configure and start the ipl CPU only */ 434 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 435 break; 436 case S390_RESET_MODIFIED_CLEAR: 437 /* 438 * Susbsystem reset needs to be done before we unshare memory 439 * and lose access to VIRTIO structures in guest memory. 440 */ 441 subsystem_reset(); 442 s390_crypto_reset(); 443 s390_pv_prepare_reset(ms); 444 CPU_FOREACH(t) { 445 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 446 } 447 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 448 break; 449 case S390_RESET_LOAD_NORMAL: 450 /* 451 * Susbsystem reset needs to be done before we unshare memory 452 * and lose access to VIRTIO structures in guest memory. 453 */ 454 subsystem_reset(); 455 s390_pv_prepare_reset(ms); 456 CPU_FOREACH(t) { 457 if (t == cs) { 458 continue; 459 } 460 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 461 } 462 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 463 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 464 break; 465 case S390_RESET_PV: /* Subcode 10 */ 466 subsystem_reset(); 467 s390_crypto_reset(); 468 469 CPU_FOREACH(t) { 470 if (t == cs) { 471 continue; 472 } 473 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 474 } 475 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 476 477 if (s390_machine_protect(ms)) { 478 s390_pv_inject_reset_error(cs); 479 /* 480 * Continue after the diag308 so the guest knows something 481 * went wrong. 482 */ 483 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 484 return; 485 } 486 487 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 488 break; 489 default: 490 g_assert_not_reached(); 491 } 492 493 CPU_FOREACH(t) { 494 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 495 } 496 s390_ipl_clear_reset_request(); 497 } 498 499 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 500 DeviceState *dev, Error **errp) 501 { 502 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 503 s390_cpu_plug(hotplug_dev, dev, errp); 504 } 505 } 506 507 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 508 DeviceState *dev, Error **errp) 509 { 510 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 511 error_setg(errp, "CPU hot unplug not supported on this machine"); 512 return; 513 } 514 } 515 516 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 517 unsigned cpu_index) 518 { 519 MachineClass *mc = MACHINE_GET_CLASS(ms); 520 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 521 522 assert(cpu_index < possible_cpus->len); 523 return possible_cpus->cpus[cpu_index].props; 524 } 525 526 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 527 { 528 int i; 529 unsigned int max_cpus = ms->smp.max_cpus; 530 531 if (ms->possible_cpus) { 532 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 533 return ms->possible_cpus; 534 } 535 536 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 537 sizeof(CPUArchId) * max_cpus); 538 ms->possible_cpus->len = max_cpus; 539 for (i = 0; i < ms->possible_cpus->len; i++) { 540 ms->possible_cpus->cpus[i].type = ms->cpu_type; 541 ms->possible_cpus->cpus[i].vcpus_count = 1; 542 ms->possible_cpus->cpus[i].arch_id = i; 543 ms->possible_cpus->cpus[i].props.has_core_id = true; 544 ms->possible_cpus->cpus[i].props.core_id = i; 545 } 546 547 return ms->possible_cpus; 548 } 549 550 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 551 DeviceState *dev) 552 { 553 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 554 return HOTPLUG_HANDLER(machine); 555 } 556 return NULL; 557 } 558 559 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 560 { 561 CPUState *cs = qemu_get_cpu(cpu_index); 562 563 s390_cpu_restart(S390_CPU(cs)); 564 } 565 566 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 567 { 568 /* same logic as in sclp.c */ 569 int increment_size = 20; 570 ram_addr_t newsz; 571 572 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 573 increment_size++; 574 } 575 newsz = sz >> increment_size << increment_size; 576 577 if (sz != newsz) { 578 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 579 "MB to match machine restrictions. Consider updating " 580 "the guest definition.\n", (uint64_t) (sz / MiB), 581 (uint64_t) (newsz / MiB)); 582 } 583 return newsz; 584 } 585 586 static void ccw_machine_class_init(ObjectClass *oc, void *data) 587 { 588 MachineClass *mc = MACHINE_CLASS(oc); 589 NMIClass *nc = NMI_CLASS(oc); 590 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 591 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 592 593 s390mc->ri_allowed = true; 594 s390mc->cpu_model_allowed = true; 595 s390mc->css_migration_enabled = true; 596 s390mc->hpage_1m_allowed = true; 597 mc->init = ccw_init; 598 mc->reset = s390_machine_reset; 599 mc->block_default_type = IF_VIRTIO; 600 mc->no_cdrom = 1; 601 mc->no_floppy = 1; 602 mc->no_parallel = 1; 603 mc->no_sdcard = 1; 604 mc->max_cpus = S390_MAX_CPUS; 605 mc->has_hotpluggable_cpus = true; 606 assert(!mc->get_hotplug_handler); 607 mc->get_hotplug_handler = s390_get_hotplug_handler; 608 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 609 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 610 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 611 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 612 hc->plug = s390_machine_device_plug; 613 hc->unplug_request = s390_machine_device_unplug_request; 614 nc->nmi_monitor_handler = s390_nmi; 615 mc->default_ram_id = "s390.ram"; 616 } 617 618 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 619 { 620 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 621 622 return ms->aes_key_wrap; 623 } 624 625 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 626 Error **errp) 627 { 628 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 629 630 ms->aes_key_wrap = value; 631 } 632 633 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 634 { 635 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 636 637 return ms->dea_key_wrap; 638 } 639 640 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 641 Error **errp) 642 { 643 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 644 645 ms->dea_key_wrap = value; 646 } 647 648 static S390CcwMachineClass *current_mc; 649 650 /* 651 * Get the class of the s390-ccw-virtio machine that is currently in use. 652 * Note: libvirt is using the "none" machine to probe for the features of the 653 * host CPU, so in case this is called with the "none" machine, the function 654 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 655 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 656 * below return the correct default value for the "none" machine. 657 * 658 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 659 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 660 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 661 * CPU initialization and s390_has_feat() later should be sufficient. 662 */ 663 static S390CcwMachineClass *get_machine_class(void) 664 { 665 if (unlikely(!current_mc)) { 666 /* 667 * No s390 ccw machine was instantiated, we are likely to 668 * be called for the 'none' machine. The properties will 669 * have their after-initialization values. 670 */ 671 current_mc = S390_CCW_MACHINE_CLASS( 672 object_class_by_name(TYPE_S390_CCW_MACHINE)); 673 } 674 return current_mc; 675 } 676 677 bool ri_allowed(void) 678 { 679 return get_machine_class()->ri_allowed; 680 } 681 682 bool cpu_model_allowed(void) 683 { 684 return get_machine_class()->cpu_model_allowed; 685 } 686 687 bool hpage_1m_allowed(void) 688 { 689 return get_machine_class()->hpage_1m_allowed; 690 } 691 692 static char *machine_get_loadparm(Object *obj, Error **errp) 693 { 694 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 695 696 /* make a NUL-terminated string */ 697 return g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 698 } 699 700 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 701 { 702 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 703 int i; 704 705 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 706 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 707 708 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 709 (c == ' ')) { 710 ms->loadparm[i] = c; 711 } else { 712 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 713 c, c); 714 return; 715 } 716 } 717 718 for (; i < sizeof(ms->loadparm); i++) { 719 ms->loadparm[i] = ' '; /* pad right with spaces */ 720 } 721 } 722 static inline void s390_machine_initfn(Object *obj) 723 { 724 object_property_add_bool(obj, "aes-key-wrap", 725 machine_get_aes_key_wrap, 726 machine_set_aes_key_wrap); 727 object_property_set_description(obj, "aes-key-wrap", 728 "enable/disable AES key wrapping using the CPACF wrapping key"); 729 object_property_set_bool(obj, "aes-key-wrap", true, NULL); 730 731 object_property_add_bool(obj, "dea-key-wrap", 732 machine_get_dea_key_wrap, 733 machine_set_dea_key_wrap); 734 object_property_set_description(obj, "dea-key-wrap", 735 "enable/disable DEA key wrapping using the CPACF wrapping key"); 736 object_property_set_bool(obj, "dea-key-wrap", true, NULL); 737 object_property_add_str(obj, "loadparm", 738 machine_get_loadparm, machine_set_loadparm); 739 object_property_set_description(obj, "loadparm", 740 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 741 " to upper case) to pass to machine loader, boot manager," 742 " and guest kernel"); 743 } 744 745 static const TypeInfo ccw_machine_info = { 746 .name = TYPE_S390_CCW_MACHINE, 747 .parent = TYPE_MACHINE, 748 .abstract = true, 749 .instance_size = sizeof(S390CcwMachineState), 750 .instance_init = s390_machine_initfn, 751 .class_size = sizeof(S390CcwMachineClass), 752 .class_init = ccw_machine_class_init, 753 .interfaces = (InterfaceInfo[]) { 754 { TYPE_NMI }, 755 { TYPE_HOTPLUG_HANDLER}, 756 { } 757 }, 758 }; 759 760 bool css_migration_enabled(void) 761 { 762 return get_machine_class()->css_migration_enabled; 763 } 764 765 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 766 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 767 void *data) \ 768 { \ 769 MachineClass *mc = MACHINE_CLASS(oc); \ 770 ccw_machine_##suffix##_class_options(mc); \ 771 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \ 772 if (latest) { \ 773 mc->alias = "s390-ccw-virtio"; \ 774 mc->is_default = true; \ 775 } \ 776 } \ 777 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 778 { \ 779 MachineState *machine = MACHINE(obj); \ 780 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 781 ccw_machine_##suffix##_instance_options(machine); \ 782 } \ 783 static const TypeInfo ccw_machine_##suffix##_info = { \ 784 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 785 .parent = TYPE_S390_CCW_MACHINE, \ 786 .class_init = ccw_machine_##suffix##_class_init, \ 787 .instance_init = ccw_machine_##suffix##_instance_init, \ 788 }; \ 789 static void ccw_machine_register_##suffix(void) \ 790 { \ 791 type_register_static(&ccw_machine_##suffix##_info); \ 792 } \ 793 type_init(ccw_machine_register_##suffix) 794 795 static void ccw_machine_6_0_instance_options(MachineState *machine) 796 { 797 } 798 799 static void ccw_machine_6_0_class_options(MachineClass *mc) 800 { 801 } 802 DEFINE_CCW_MACHINE(6_0, "6.0", true); 803 804 static void ccw_machine_5_2_instance_options(MachineState *machine) 805 { 806 ccw_machine_6_0_instance_options(machine); 807 } 808 809 static void ccw_machine_5_2_class_options(MachineClass *mc) 810 { 811 ccw_machine_6_0_class_options(mc); 812 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 813 } 814 DEFINE_CCW_MACHINE(5_2, "5.2", false); 815 816 static void ccw_machine_5_1_instance_options(MachineState *machine) 817 { 818 ccw_machine_5_2_instance_options(machine); 819 } 820 821 static void ccw_machine_5_1_class_options(MachineClass *mc) 822 { 823 ccw_machine_5_2_class_options(mc); 824 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 825 } 826 DEFINE_CCW_MACHINE(5_1, "5.1", false); 827 828 static void ccw_machine_5_0_instance_options(MachineState *machine) 829 { 830 ccw_machine_5_1_instance_options(machine); 831 } 832 833 static void ccw_machine_5_0_class_options(MachineClass *mc) 834 { 835 ccw_machine_5_1_class_options(mc); 836 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 837 } 838 DEFINE_CCW_MACHINE(5_0, "5.0", false); 839 840 static void ccw_machine_4_2_instance_options(MachineState *machine) 841 { 842 ccw_machine_5_0_instance_options(machine); 843 } 844 845 static void ccw_machine_4_2_class_options(MachineClass *mc) 846 { 847 ccw_machine_5_0_class_options(mc); 848 mc->fixup_ram_size = s390_fixup_ram_size; 849 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 850 } 851 DEFINE_CCW_MACHINE(4_2, "4.2", false); 852 853 static void ccw_machine_4_1_instance_options(MachineState *machine) 854 { 855 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 856 ccw_machine_4_2_instance_options(machine); 857 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 858 } 859 860 static void ccw_machine_4_1_class_options(MachineClass *mc) 861 { 862 ccw_machine_4_2_class_options(mc); 863 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 864 } 865 DEFINE_CCW_MACHINE(4_1, "4.1", false); 866 867 static void ccw_machine_4_0_instance_options(MachineState *machine) 868 { 869 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 870 ccw_machine_4_1_instance_options(machine); 871 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 872 } 873 874 static void ccw_machine_4_0_class_options(MachineClass *mc) 875 { 876 ccw_machine_4_1_class_options(mc); 877 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 878 } 879 DEFINE_CCW_MACHINE(4_0, "4.0", false); 880 881 static void ccw_machine_3_1_instance_options(MachineState *machine) 882 { 883 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 884 ccw_machine_4_0_instance_options(machine); 885 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 886 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 887 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 888 } 889 890 static void ccw_machine_3_1_class_options(MachineClass *mc) 891 { 892 ccw_machine_4_0_class_options(mc); 893 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 894 } 895 DEFINE_CCW_MACHINE(3_1, "3.1", false); 896 897 static void ccw_machine_3_0_instance_options(MachineState *machine) 898 { 899 ccw_machine_3_1_instance_options(machine); 900 } 901 902 static void ccw_machine_3_0_class_options(MachineClass *mc) 903 { 904 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 905 906 s390mc->hpage_1m_allowed = false; 907 ccw_machine_3_1_class_options(mc); 908 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 909 } 910 DEFINE_CCW_MACHINE(3_0, "3.0", false); 911 912 static void ccw_machine_2_12_instance_options(MachineState *machine) 913 { 914 ccw_machine_3_0_instance_options(machine); 915 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 916 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 917 } 918 919 static void ccw_machine_2_12_class_options(MachineClass *mc) 920 { 921 ccw_machine_3_0_class_options(mc); 922 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 923 } 924 DEFINE_CCW_MACHINE(2_12, "2.12", false); 925 926 static void ccw_machine_2_11_instance_options(MachineState *machine) 927 { 928 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 929 ccw_machine_2_12_instance_options(machine); 930 931 /* before 2.12 we emulated the very first z900 */ 932 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 933 } 934 935 static void ccw_machine_2_11_class_options(MachineClass *mc) 936 { 937 static GlobalProperty compat[] = { 938 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 939 }; 940 941 ccw_machine_2_12_class_options(mc); 942 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 943 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 944 } 945 DEFINE_CCW_MACHINE(2_11, "2.11", false); 946 947 static void ccw_machine_2_10_instance_options(MachineState *machine) 948 { 949 ccw_machine_2_11_instance_options(machine); 950 } 951 952 static void ccw_machine_2_10_class_options(MachineClass *mc) 953 { 954 ccw_machine_2_11_class_options(mc); 955 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 956 } 957 DEFINE_CCW_MACHINE(2_10, "2.10", false); 958 959 static void ccw_machine_2_9_instance_options(MachineState *machine) 960 { 961 ccw_machine_2_10_instance_options(machine); 962 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 963 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 964 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 965 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 966 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 967 } 968 969 static void ccw_machine_2_9_class_options(MachineClass *mc) 970 { 971 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 972 static GlobalProperty compat[] = { 973 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 974 }; 975 976 ccw_machine_2_10_class_options(mc); 977 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 978 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 979 s390mc->css_migration_enabled = false; 980 } 981 DEFINE_CCW_MACHINE(2_9, "2.9", false); 982 983 static void ccw_machine_2_8_instance_options(MachineState *machine) 984 { 985 ccw_machine_2_9_instance_options(machine); 986 } 987 988 static void ccw_machine_2_8_class_options(MachineClass *mc) 989 { 990 static GlobalProperty compat[] = { 991 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 992 }; 993 994 ccw_machine_2_9_class_options(mc); 995 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 996 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 997 } 998 DEFINE_CCW_MACHINE(2_8, "2.8", false); 999 1000 static void ccw_machine_2_7_instance_options(MachineState *machine) 1001 { 1002 ccw_machine_2_8_instance_options(machine); 1003 } 1004 1005 static void ccw_machine_2_7_class_options(MachineClass *mc) 1006 { 1007 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1008 1009 s390mc->cpu_model_allowed = false; 1010 ccw_machine_2_8_class_options(mc); 1011 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1012 } 1013 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1014 1015 static void ccw_machine_2_6_instance_options(MachineState *machine) 1016 { 1017 ccw_machine_2_7_instance_options(machine); 1018 } 1019 1020 static void ccw_machine_2_6_class_options(MachineClass *mc) 1021 { 1022 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1023 static GlobalProperty compat[] = { 1024 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1025 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1026 }; 1027 1028 s390mc->ri_allowed = false; 1029 ccw_machine_2_7_class_options(mc); 1030 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1031 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1032 } 1033 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1034 1035 static void ccw_machine_2_5_instance_options(MachineState *machine) 1036 { 1037 ccw_machine_2_6_instance_options(machine); 1038 } 1039 1040 static void ccw_machine_2_5_class_options(MachineClass *mc) 1041 { 1042 ccw_machine_2_6_class_options(mc); 1043 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1044 } 1045 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1046 1047 static void ccw_machine_2_4_instance_options(MachineState *machine) 1048 { 1049 ccw_machine_2_5_instance_options(machine); 1050 } 1051 1052 static void ccw_machine_2_4_class_options(MachineClass *mc) 1053 { 1054 static GlobalProperty compat[] = { 1055 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1056 { "virtio-blk-ccw", "max_revision", "0", }, 1057 { "virtio-balloon-ccw", "max_revision", "0", }, 1058 { "virtio-serial-ccw", "max_revision", "0", }, 1059 { "virtio-9p-ccw", "max_revision", "0", }, 1060 { "virtio-rng-ccw", "max_revision", "0", }, 1061 { "virtio-net-ccw", "max_revision", "0", }, 1062 { "virtio-scsi-ccw", "max_revision", "0", }, 1063 { "vhost-scsi-ccw", "max_revision", "0", }, 1064 }; 1065 1066 ccw_machine_2_5_class_options(mc); 1067 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1068 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1069 } 1070 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1071 1072 static void ccw_machine_register_types(void) 1073 { 1074 type_register_static(&ccw_machine_info); 1075 } 1076 1077 type_init(ccw_machine_register_types) 1078