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 "hw/s390x/pv.h" 47 #include "migration/blocker.h" 48 49 static Error *pv_mig_blocker; 50 51 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 52 { 53 static MachineState *ms; 54 55 if (!ms) { 56 ms = MACHINE(qdev_get_machine()); 57 g_assert(ms->possible_cpus); 58 } 59 60 /* CPU address corresponds to the core_id and the index */ 61 if (cpu_addr >= ms->possible_cpus->len) { 62 return NULL; 63 } 64 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 65 } 66 67 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 68 Error **errp) 69 { 70 S390CPU *cpu = S390_CPU(object_new(typename)); 71 Error *err = NULL; 72 73 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, &err)) { 74 goto out; 75 } 76 qdev_realize(DEVICE(cpu), NULL, &err); 77 78 out: 79 object_unref(OBJECT(cpu)); 80 if (err) { 81 error_propagate(errp, err); 82 cpu = NULL; 83 } 84 return cpu; 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 }; 106 107 static void subsystem_reset(void) 108 { 109 DeviceState *dev; 110 int i; 111 112 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 113 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 114 if (dev) { 115 qdev_reset_all(dev); 116 } 117 } 118 } 119 120 static int virtio_ccw_hcall_notify(const uint64_t *args) 121 { 122 uint64_t subch_id = args[0]; 123 uint64_t queue = args[1]; 124 SubchDev *sch; 125 int cssid, ssid, schid, m; 126 127 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 128 return -EINVAL; 129 } 130 sch = css_find_subch(m, cssid, ssid, schid); 131 if (!sch || !css_subch_visible(sch)) { 132 return -EINVAL; 133 } 134 if (queue >= VIRTIO_QUEUE_MAX) { 135 return -EINVAL; 136 } 137 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 138 return 0; 139 140 } 141 142 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 143 { 144 uint64_t mem = args[0]; 145 146 if (mem < ram_size) { 147 /* Early printk */ 148 return 0; 149 } 150 return -EINVAL; 151 } 152 153 static void virtio_ccw_register_hcalls(void) 154 { 155 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 156 virtio_ccw_hcall_notify); 157 /* Tolerate early printk. */ 158 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 159 virtio_ccw_hcall_early_printk); 160 } 161 162 static void s390_memory_init(MemoryRegion *ram) 163 { 164 MemoryRegion *sysmem = get_system_memory(); 165 Error *local_err = NULL; 166 167 /* allocate RAM for core */ 168 memory_region_add_subregion(sysmem, 0, ram); 169 170 /* 171 * Configure the maximum page size. As no memory devices were created 172 * yet, this is the page size of initial memory only. 173 */ 174 s390_set_max_pagesize(qemu_maxrampagesize(), &local_err); 175 if (local_err) { 176 error_report_err(local_err); 177 exit(EXIT_FAILURE); 178 } 179 /* Initialize storage key device */ 180 s390_skeys_init(); 181 /* Initialize storage attributes device */ 182 s390_stattrib_init(); 183 } 184 185 static void s390_init_ipl_dev(const char *kernel_filename, 186 const char *kernel_cmdline, 187 const char *initrd_filename, const char *firmware, 188 const char *netboot_fw, bool enforce_bios) 189 { 190 Object *new = object_new(TYPE_S390_IPL); 191 DeviceState *dev = DEVICE(new); 192 char *netboot_fw_prop; 193 194 if (kernel_filename) { 195 qdev_prop_set_string(dev, "kernel", kernel_filename); 196 } 197 if (initrd_filename) { 198 qdev_prop_set_string(dev, "initrd", initrd_filename); 199 } 200 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 201 qdev_prop_set_string(dev, "firmware", firmware); 202 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 203 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 204 if (!strlen(netboot_fw_prop)) { 205 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 206 } 207 g_free(netboot_fw_prop); 208 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 209 new); 210 object_unref(new); 211 qdev_realize(dev, NULL, &error_fatal); 212 } 213 214 static void s390_create_virtio_net(BusState *bus, const char *name) 215 { 216 int i; 217 218 for (i = 0; i < nb_nics; i++) { 219 NICInfo *nd = &nd_table[i]; 220 DeviceState *dev; 221 222 if (!nd->model) { 223 nd->model = g_strdup("virtio"); 224 } 225 226 qemu_check_nic_model(nd, "virtio"); 227 228 dev = qdev_new(name); 229 qdev_set_nic_properties(dev, nd); 230 qdev_realize_and_unref(dev, bus, &error_fatal); 231 } 232 } 233 234 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 235 { 236 DeviceState *dev; 237 238 dev = qdev_new(type); 239 qdev_prop_set_chr(dev, "chardev", chardev); 240 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 241 } 242 243 static void ccw_init(MachineState *machine) 244 { 245 int ret; 246 VirtualCssBus *css_bus; 247 DeviceState *dev; 248 249 s390_sclp_init(); 250 /* init memory + setup max page size. Required for the CPU model */ 251 s390_memory_init(machine->ram); 252 253 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 254 s390_init_cpus(machine); 255 256 s390_flic_init(); 257 258 /* init the SIGP facility */ 259 s390_init_sigp(); 260 261 /* create AP bridge and bus(es) */ 262 s390_init_ap(); 263 264 /* get a BUS */ 265 css_bus = virtual_css_bus_init(); 266 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 267 machine->initrd_filename, "s390-ccw.img", 268 "s390-netboot.img", true); 269 270 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 271 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 272 OBJECT(dev)); 273 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 274 275 /* register hypercalls */ 276 virtio_ccw_register_hcalls(); 277 278 s390_enable_css_support(s390_cpu_addr2state(0)); 279 280 ret = css_create_css_image(VIRTUAL_CSSID, true); 281 282 assert(ret == 0); 283 if (css_migration_enabled()) { 284 css_register_vmstate(); 285 } 286 287 /* Create VirtIO network adapters */ 288 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 289 290 /* init consoles */ 291 if (serial_hd(0)) { 292 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 293 } 294 if (serial_hd(1)) { 295 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 296 } 297 298 /* init the TOD clock */ 299 s390_init_tod(); 300 } 301 302 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 303 DeviceState *dev, Error **errp) 304 { 305 MachineState *ms = MACHINE(hotplug_dev); 306 S390CPU *cpu = S390_CPU(dev); 307 308 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 309 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 310 311 if (dev->hotplugged) { 312 raise_irq_cpu_hotplug(); 313 } 314 } 315 316 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 317 { 318 S390CPU *cpu = S390_CPU(cs); 319 320 s390_ipl_prepare_cpu(cpu); 321 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 322 } 323 324 static void s390_machine_unprotect(S390CcwMachineState *ms) 325 { 326 s390_pv_vm_disable(); 327 ms->pv = false; 328 migrate_del_blocker(pv_mig_blocker); 329 error_free_or_abort(&pv_mig_blocker); 330 ram_block_discard_disable(false); 331 } 332 333 static int s390_machine_protect(S390CcwMachineState *ms) 334 { 335 Error *local_err = NULL; 336 int rc; 337 338 /* 339 * Discarding of memory in RAM blocks does not work as expected with 340 * protected VMs. Sharing and unsharing pages would be required. Disable 341 * it for now, until until we have a solution to make at least Linux 342 * guests either support it (e.g., virtio-balloon) or fail gracefully. 343 */ 344 rc = ram_block_discard_disable(true); 345 if (rc) { 346 error_report("protected VMs: cannot disable RAM discard"); 347 return rc; 348 } 349 350 error_setg(&pv_mig_blocker, 351 "protected VMs are currently not migrateable."); 352 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 353 if (rc) { 354 ram_block_discard_disable(false); 355 error_report_err(local_err); 356 error_free_or_abort(&pv_mig_blocker); 357 return rc; 358 } 359 360 /* Create SE VM */ 361 rc = s390_pv_vm_enable(); 362 if (rc) { 363 ram_block_discard_disable(false); 364 migrate_del_blocker(pv_mig_blocker); 365 error_free_or_abort(&pv_mig_blocker); 366 return rc; 367 } 368 369 ms->pv = true; 370 371 /* Set SE header and unpack */ 372 rc = s390_ipl_prepare_pv_header(); 373 if (rc) { 374 goto out_err; 375 } 376 377 /* Decrypt image */ 378 rc = s390_ipl_pv_unpack(); 379 if (rc) { 380 goto out_err; 381 } 382 383 /* Verify integrity */ 384 rc = s390_pv_verify(); 385 if (rc) { 386 goto out_err; 387 } 388 return rc; 389 390 out_err: 391 s390_machine_unprotect(ms); 392 return rc; 393 } 394 395 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 396 { 397 CPUState *cs; 398 399 if (!s390_is_pv()) { 400 return; 401 } 402 /* Unsharing requires all cpus to be stopped */ 403 CPU_FOREACH(cs) { 404 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 405 } 406 s390_pv_unshare(); 407 s390_pv_prep_reset(); 408 } 409 410 static void s390_machine_reset(MachineState *machine) 411 { 412 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 413 enum s390_reset reset_type; 414 CPUState *cs, *t; 415 S390CPU *cpu; 416 417 /* get the reset parameters, reset them once done */ 418 s390_ipl_get_reset_request(&cs, &reset_type); 419 420 /* all CPUs are paused and synchronized at this point */ 421 s390_cmma_reset(); 422 423 cpu = S390_CPU(cs); 424 425 switch (reset_type) { 426 case S390_RESET_EXTERNAL: 427 case S390_RESET_REIPL: 428 if (s390_is_pv()) { 429 s390_machine_unprotect(ms); 430 } 431 432 qemu_devices_reset(); 433 s390_crypto_reset(); 434 435 /* configure and start the ipl CPU only */ 436 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 437 break; 438 case S390_RESET_MODIFIED_CLEAR: 439 /* 440 * Susbsystem reset needs to be done before we unshare memory 441 * and lose access to VIRTIO structures in guest memory. 442 */ 443 subsystem_reset(); 444 s390_crypto_reset(); 445 s390_pv_prepare_reset(ms); 446 CPU_FOREACH(t) { 447 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 448 } 449 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 450 break; 451 case S390_RESET_LOAD_NORMAL: 452 /* 453 * Susbsystem reset needs to be done before we unshare memory 454 * and lose access to VIRTIO structures in guest memory. 455 */ 456 subsystem_reset(); 457 s390_pv_prepare_reset(ms); 458 CPU_FOREACH(t) { 459 if (t == cs) { 460 continue; 461 } 462 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 463 } 464 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 465 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 466 break; 467 case S390_RESET_PV: /* Subcode 10 */ 468 subsystem_reset(); 469 s390_crypto_reset(); 470 471 CPU_FOREACH(t) { 472 if (t == cs) { 473 continue; 474 } 475 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 476 } 477 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 478 479 if (s390_machine_protect(ms)) { 480 s390_pv_inject_reset_error(cs); 481 /* 482 * Continue after the diag308 so the guest knows something 483 * went wrong. 484 */ 485 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 486 return; 487 } 488 489 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 490 break; 491 default: 492 g_assert_not_reached(); 493 } 494 s390_ipl_clear_reset_request(); 495 } 496 497 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 498 DeviceState *dev, Error **errp) 499 { 500 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 501 s390_cpu_plug(hotplug_dev, dev, errp); 502 } 503 } 504 505 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 506 DeviceState *dev, Error **errp) 507 { 508 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 509 error_setg(errp, "CPU hot unplug not supported on this machine"); 510 return; 511 } 512 } 513 514 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 515 unsigned cpu_index) 516 { 517 MachineClass *mc = MACHINE_GET_CLASS(ms); 518 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 519 520 assert(cpu_index < possible_cpus->len); 521 return possible_cpus->cpus[cpu_index].props; 522 } 523 524 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 525 { 526 int i; 527 unsigned int max_cpus = ms->smp.max_cpus; 528 529 if (ms->possible_cpus) { 530 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 531 return ms->possible_cpus; 532 } 533 534 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 535 sizeof(CPUArchId) * max_cpus); 536 ms->possible_cpus->len = max_cpus; 537 for (i = 0; i < ms->possible_cpus->len; i++) { 538 ms->possible_cpus->cpus[i].type = ms->cpu_type; 539 ms->possible_cpus->cpus[i].vcpus_count = 1; 540 ms->possible_cpus->cpus[i].arch_id = i; 541 ms->possible_cpus->cpus[i].props.has_core_id = true; 542 ms->possible_cpus->cpus[i].props.core_id = i; 543 } 544 545 return ms->possible_cpus; 546 } 547 548 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 549 DeviceState *dev) 550 { 551 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 552 return HOTPLUG_HANDLER(machine); 553 } 554 return NULL; 555 } 556 557 static void s390_hot_add_cpu(MachineState *machine, 558 const int64_t id, Error **errp) 559 { 560 ObjectClass *oc; 561 562 g_assert(machine->possible_cpus->cpus[0].cpu); 563 oc = OBJECT_CLASS(CPU_GET_CLASS(machine->possible_cpus->cpus[0].cpu)); 564 565 s390x_new_cpu(object_class_get_name(oc), id, errp); 566 } 567 568 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 569 { 570 CPUState *cs = qemu_get_cpu(cpu_index); 571 572 s390_cpu_restart(S390_CPU(cs)); 573 } 574 575 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 576 { 577 /* same logic as in sclp.c */ 578 int increment_size = 20; 579 ram_addr_t newsz; 580 581 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 582 increment_size++; 583 } 584 newsz = sz >> increment_size << increment_size; 585 586 if (sz != newsz) { 587 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 588 "MB to match machine restrictions. Consider updating " 589 "the guest definition.\n", (uint64_t) (sz / MiB), 590 (uint64_t) (newsz / MiB)); 591 } 592 return newsz; 593 } 594 595 static void ccw_machine_class_init(ObjectClass *oc, void *data) 596 { 597 MachineClass *mc = MACHINE_CLASS(oc); 598 NMIClass *nc = NMI_CLASS(oc); 599 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 600 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 601 602 s390mc->ri_allowed = true; 603 s390mc->cpu_model_allowed = true; 604 s390mc->css_migration_enabled = true; 605 s390mc->hpage_1m_allowed = true; 606 mc->init = ccw_init; 607 mc->reset = s390_machine_reset; 608 mc->hot_add_cpu = s390_hot_add_cpu; 609 mc->block_default_type = IF_VIRTIO; 610 mc->no_cdrom = 1; 611 mc->no_floppy = 1; 612 mc->no_parallel = 1; 613 mc->no_sdcard = 1; 614 mc->max_cpus = S390_MAX_CPUS; 615 mc->has_hotpluggable_cpus = true; 616 assert(!mc->get_hotplug_handler); 617 mc->get_hotplug_handler = s390_get_hotplug_handler; 618 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 619 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 620 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 621 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 622 hc->plug = s390_machine_device_plug; 623 hc->unplug_request = s390_machine_device_unplug_request; 624 nc->nmi_monitor_handler = s390_nmi; 625 mc->default_ram_id = "s390.ram"; 626 } 627 628 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 629 { 630 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 631 632 return ms->aes_key_wrap; 633 } 634 635 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 636 Error **errp) 637 { 638 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 639 640 ms->aes_key_wrap = value; 641 } 642 643 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 644 { 645 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 646 647 return ms->dea_key_wrap; 648 } 649 650 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 651 Error **errp) 652 { 653 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 654 655 ms->dea_key_wrap = value; 656 } 657 658 static S390CcwMachineClass *current_mc; 659 660 /* 661 * Get the class of the s390-ccw-virtio machine that is currently in use. 662 * Note: libvirt is using the "none" machine to probe for the features of the 663 * host CPU, so in case this is called with the "none" machine, the function 664 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 665 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 666 * below return the correct default value for the "none" machine. 667 * 668 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 669 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 670 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 671 * CPU initialization and s390_has_feat() later should be sufficient. 672 */ 673 static S390CcwMachineClass *get_machine_class(void) 674 { 675 if (unlikely(!current_mc)) { 676 /* 677 * No s390 ccw machine was instantiated, we are likely to 678 * be called for the 'none' machine. The properties will 679 * have their after-initialization values. 680 */ 681 current_mc = S390_MACHINE_CLASS( 682 object_class_by_name(TYPE_S390_CCW_MACHINE)); 683 } 684 return current_mc; 685 } 686 687 bool ri_allowed(void) 688 { 689 return get_machine_class()->ri_allowed; 690 } 691 692 bool cpu_model_allowed(void) 693 { 694 return get_machine_class()->cpu_model_allowed; 695 } 696 697 bool hpage_1m_allowed(void) 698 { 699 return get_machine_class()->hpage_1m_allowed; 700 } 701 702 static char *machine_get_loadparm(Object *obj, Error **errp) 703 { 704 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 705 706 return g_memdup(ms->loadparm, sizeof(ms->loadparm)); 707 } 708 709 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 710 { 711 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 712 int i; 713 714 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 715 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 716 717 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 718 (c == ' ')) { 719 ms->loadparm[i] = c; 720 } else { 721 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 722 c, c); 723 return; 724 } 725 } 726 727 for (; i < sizeof(ms->loadparm); i++) { 728 ms->loadparm[i] = ' '; /* pad right with spaces */ 729 } 730 } 731 static inline void s390_machine_initfn(Object *obj) 732 { 733 object_property_add_bool(obj, "aes-key-wrap", 734 machine_get_aes_key_wrap, 735 machine_set_aes_key_wrap); 736 object_property_set_description(obj, "aes-key-wrap", 737 "enable/disable AES key wrapping using the CPACF wrapping key"); 738 object_property_set_bool(obj, "aes-key-wrap", true, NULL); 739 740 object_property_add_bool(obj, "dea-key-wrap", 741 machine_get_dea_key_wrap, 742 machine_set_dea_key_wrap); 743 object_property_set_description(obj, "dea-key-wrap", 744 "enable/disable DEA key wrapping using the CPACF wrapping key"); 745 object_property_set_bool(obj, "dea-key-wrap", true, NULL); 746 object_property_add_str(obj, "loadparm", 747 machine_get_loadparm, machine_set_loadparm); 748 object_property_set_description(obj, "loadparm", 749 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 750 " to upper case) to pass to machine loader, boot manager," 751 " and guest kernel"); 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_1_instance_options(MachineState *machine) 805 { 806 } 807 808 static void ccw_machine_5_1_class_options(MachineClass *mc) 809 { 810 } 811 DEFINE_CCW_MACHINE(5_1, "5.1", true); 812 813 static void ccw_machine_5_0_instance_options(MachineState *machine) 814 { 815 ccw_machine_5_1_instance_options(machine); 816 } 817 818 static void ccw_machine_5_0_class_options(MachineClass *mc) 819 { 820 ccw_machine_5_1_class_options(mc); 821 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 822 } 823 DEFINE_CCW_MACHINE(5_0, "5.0", false); 824 825 static void ccw_machine_4_2_instance_options(MachineState *machine) 826 { 827 ccw_machine_5_0_instance_options(machine); 828 } 829 830 static void ccw_machine_4_2_class_options(MachineClass *mc) 831 { 832 ccw_machine_5_0_class_options(mc); 833 mc->fixup_ram_size = s390_fixup_ram_size; 834 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 835 } 836 DEFINE_CCW_MACHINE(4_2, "4.2", false); 837 838 static void ccw_machine_4_1_instance_options(MachineState *machine) 839 { 840 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 841 ccw_machine_4_2_instance_options(machine); 842 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 843 } 844 845 static void ccw_machine_4_1_class_options(MachineClass *mc) 846 { 847 ccw_machine_4_2_class_options(mc); 848 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 849 } 850 DEFINE_CCW_MACHINE(4_1, "4.1", false); 851 852 static void ccw_machine_4_0_instance_options(MachineState *machine) 853 { 854 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 855 ccw_machine_4_1_instance_options(machine); 856 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 857 } 858 859 static void ccw_machine_4_0_class_options(MachineClass *mc) 860 { 861 ccw_machine_4_1_class_options(mc); 862 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 863 } 864 DEFINE_CCW_MACHINE(4_0, "4.0", false); 865 866 static void ccw_machine_3_1_instance_options(MachineState *machine) 867 { 868 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 869 ccw_machine_4_0_instance_options(machine); 870 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 871 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 872 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 873 } 874 875 static void ccw_machine_3_1_class_options(MachineClass *mc) 876 { 877 ccw_machine_4_0_class_options(mc); 878 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 879 } 880 DEFINE_CCW_MACHINE(3_1, "3.1", false); 881 882 static void ccw_machine_3_0_instance_options(MachineState *machine) 883 { 884 ccw_machine_3_1_instance_options(machine); 885 } 886 887 static void ccw_machine_3_0_class_options(MachineClass *mc) 888 { 889 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 890 891 s390mc->hpage_1m_allowed = false; 892 ccw_machine_3_1_class_options(mc); 893 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 894 } 895 DEFINE_CCW_MACHINE(3_0, "3.0", false); 896 897 static void ccw_machine_2_12_instance_options(MachineState *machine) 898 { 899 ccw_machine_3_0_instance_options(machine); 900 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 901 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 902 } 903 904 static void ccw_machine_2_12_class_options(MachineClass *mc) 905 { 906 ccw_machine_3_0_class_options(mc); 907 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 908 } 909 DEFINE_CCW_MACHINE(2_12, "2.12", false); 910 911 static void ccw_machine_2_11_instance_options(MachineState *machine) 912 { 913 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 914 ccw_machine_2_12_instance_options(machine); 915 916 /* before 2.12 we emulated the very first z900 */ 917 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 918 } 919 920 static void ccw_machine_2_11_class_options(MachineClass *mc) 921 { 922 static GlobalProperty compat[] = { 923 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 924 }; 925 926 ccw_machine_2_12_class_options(mc); 927 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 928 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 929 } 930 DEFINE_CCW_MACHINE(2_11, "2.11", false); 931 932 static void ccw_machine_2_10_instance_options(MachineState *machine) 933 { 934 ccw_machine_2_11_instance_options(machine); 935 } 936 937 static void ccw_machine_2_10_class_options(MachineClass *mc) 938 { 939 ccw_machine_2_11_class_options(mc); 940 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 941 } 942 DEFINE_CCW_MACHINE(2_10, "2.10", false); 943 944 static void ccw_machine_2_9_instance_options(MachineState *machine) 945 { 946 ccw_machine_2_10_instance_options(machine); 947 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 948 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 949 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 950 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 951 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 952 } 953 954 static void ccw_machine_2_9_class_options(MachineClass *mc) 955 { 956 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 957 static GlobalProperty compat[] = { 958 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 959 }; 960 961 ccw_machine_2_10_class_options(mc); 962 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 963 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 964 s390mc->css_migration_enabled = false; 965 } 966 DEFINE_CCW_MACHINE(2_9, "2.9", false); 967 968 static void ccw_machine_2_8_instance_options(MachineState *machine) 969 { 970 ccw_machine_2_9_instance_options(machine); 971 } 972 973 static void ccw_machine_2_8_class_options(MachineClass *mc) 974 { 975 static GlobalProperty compat[] = { 976 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 977 }; 978 979 ccw_machine_2_9_class_options(mc); 980 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 981 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 982 } 983 DEFINE_CCW_MACHINE(2_8, "2.8", false); 984 985 static void ccw_machine_2_7_instance_options(MachineState *machine) 986 { 987 ccw_machine_2_8_instance_options(machine); 988 } 989 990 static void ccw_machine_2_7_class_options(MachineClass *mc) 991 { 992 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 993 994 s390mc->cpu_model_allowed = false; 995 ccw_machine_2_8_class_options(mc); 996 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 997 } 998 DEFINE_CCW_MACHINE(2_7, "2.7", false); 999 1000 static void ccw_machine_2_6_instance_options(MachineState *machine) 1001 { 1002 ccw_machine_2_7_instance_options(machine); 1003 } 1004 1005 static void ccw_machine_2_6_class_options(MachineClass *mc) 1006 { 1007 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 1008 static GlobalProperty compat[] = { 1009 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1010 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1011 }; 1012 1013 s390mc->ri_allowed = false; 1014 ccw_machine_2_7_class_options(mc); 1015 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1016 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1017 } 1018 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1019 1020 static void ccw_machine_2_5_instance_options(MachineState *machine) 1021 { 1022 ccw_machine_2_6_instance_options(machine); 1023 } 1024 1025 static void ccw_machine_2_5_class_options(MachineClass *mc) 1026 { 1027 ccw_machine_2_6_class_options(mc); 1028 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1029 } 1030 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1031 1032 static void ccw_machine_2_4_instance_options(MachineState *machine) 1033 { 1034 ccw_machine_2_5_instance_options(machine); 1035 } 1036 1037 static void ccw_machine_2_4_class_options(MachineClass *mc) 1038 { 1039 static GlobalProperty compat[] = { 1040 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1041 { "virtio-blk-ccw", "max_revision", "0", }, 1042 { "virtio-balloon-ccw", "max_revision", "0", }, 1043 { "virtio-serial-ccw", "max_revision", "0", }, 1044 { "virtio-9p-ccw", "max_revision", "0", }, 1045 { "virtio-rng-ccw", "max_revision", "0", }, 1046 { "virtio-net-ccw", "max_revision", "0", }, 1047 { "virtio-scsi-ccw", "max_revision", "0", }, 1048 { "vhost-scsi-ccw", "max_revision", "0", }, 1049 }; 1050 1051 ccw_machine_2_5_class_options(mc); 1052 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1053 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1054 } 1055 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1056 1057 static void ccw_machine_register_types(void) 1058 { 1059 type_register_static(&ccw_machine_info); 1060 } 1061 1062 type_init(ccw_machine_register_types) 1063