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 S390CPU *ret = NULL; 72 73 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) { 74 goto out; 75 } 76 if (!qdev_realize(DEVICE(cpu), NULL, errp)) { 77 goto out; 78 } 79 ret = cpu; 80 81 out: 82 object_unref(OBJECT(cpu)); 83 return ret; 84 } 85 86 static void s390_init_cpus(MachineState *machine) 87 { 88 MachineClass *mc = MACHINE_GET_CLASS(machine); 89 int i; 90 91 /* initialize possible_cpus */ 92 mc->possible_cpu_arch_ids(machine); 93 94 for (i = 0; i < machine->smp.cpus; i++) { 95 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 96 } 97 } 98 99 static const char *const reset_dev_types[] = { 100 TYPE_VIRTUAL_CSS_BRIDGE, 101 "s390-sclp-event-facility", 102 "s390-flic", 103 "diag288", 104 }; 105 106 static void subsystem_reset(void) 107 { 108 DeviceState *dev; 109 int i; 110 111 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 112 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 113 if (dev) { 114 qdev_reset_all(dev); 115 } 116 } 117 } 118 119 static int virtio_ccw_hcall_notify(const uint64_t *args) 120 { 121 uint64_t subch_id = args[0]; 122 uint64_t queue = args[1]; 123 SubchDev *sch; 124 int cssid, ssid, schid, m; 125 126 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 127 return -EINVAL; 128 } 129 sch = css_find_subch(m, cssid, ssid, schid); 130 if (!sch || !css_subch_visible(sch)) { 131 return -EINVAL; 132 } 133 if (queue >= VIRTIO_QUEUE_MAX) { 134 return -EINVAL; 135 } 136 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 137 return 0; 138 139 } 140 141 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 142 { 143 uint64_t mem = args[0]; 144 145 if (mem < ram_size) { 146 /* Early printk */ 147 return 0; 148 } 149 return -EINVAL; 150 } 151 152 static void virtio_ccw_register_hcalls(void) 153 { 154 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 155 virtio_ccw_hcall_notify); 156 /* Tolerate early printk. */ 157 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 158 virtio_ccw_hcall_early_printk); 159 } 160 161 static void s390_memory_init(MemoryRegion *ram) 162 { 163 MemoryRegion *sysmem = get_system_memory(); 164 Error *local_err = NULL; 165 166 /* allocate RAM for core */ 167 memory_region_add_subregion(sysmem, 0, ram); 168 169 /* 170 * Configure the maximum page size. As no memory devices were created 171 * yet, this is the page size of initial memory only. 172 */ 173 s390_set_max_pagesize(qemu_maxrampagesize(), &local_err); 174 if (local_err) { 175 error_report_err(local_err); 176 exit(EXIT_FAILURE); 177 } 178 /* Initialize storage key device */ 179 s390_skeys_init(); 180 /* Initialize storage attributes device */ 181 s390_stattrib_init(); 182 } 183 184 static void s390_init_ipl_dev(const char *kernel_filename, 185 const char *kernel_cmdline, 186 const char *initrd_filename, const char *firmware, 187 const char *netboot_fw, bool enforce_bios) 188 { 189 Object *new = object_new(TYPE_S390_IPL); 190 DeviceState *dev = DEVICE(new); 191 char *netboot_fw_prop; 192 193 if (kernel_filename) { 194 qdev_prop_set_string(dev, "kernel", kernel_filename); 195 } 196 if (initrd_filename) { 197 qdev_prop_set_string(dev, "initrd", initrd_filename); 198 } 199 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 200 qdev_prop_set_string(dev, "firmware", firmware); 201 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 202 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 203 if (!strlen(netboot_fw_prop)) { 204 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 205 } 206 g_free(netboot_fw_prop); 207 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 208 new); 209 object_unref(new); 210 qdev_realize(dev, NULL, &error_fatal); 211 } 212 213 static void s390_create_virtio_net(BusState *bus, const char *name) 214 { 215 int i; 216 217 for (i = 0; i < nb_nics; i++) { 218 NICInfo *nd = &nd_table[i]; 219 DeviceState *dev; 220 221 if (!nd->model) { 222 nd->model = g_strdup("virtio"); 223 } 224 225 qemu_check_nic_model(nd, "virtio"); 226 227 dev = qdev_new(name); 228 qdev_set_nic_properties(dev, nd); 229 qdev_realize_and_unref(dev, bus, &error_fatal); 230 } 231 } 232 233 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 234 { 235 DeviceState *dev; 236 237 dev = qdev_new(type); 238 qdev_prop_set_chr(dev, "chardev", chardev); 239 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 240 } 241 242 static void ccw_init(MachineState *machine) 243 { 244 int ret; 245 VirtualCssBus *css_bus; 246 DeviceState *dev; 247 248 s390_sclp_init(); 249 /* init memory + setup max page size. Required for the CPU model */ 250 s390_memory_init(machine->ram); 251 252 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 253 s390_init_cpus(machine); 254 255 s390_flic_init(); 256 257 /* init the SIGP facility */ 258 s390_init_sigp(); 259 260 /* create AP bridge and bus(es) */ 261 s390_init_ap(); 262 263 /* get a BUS */ 264 css_bus = virtual_css_bus_init(); 265 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 266 machine->initrd_filename, "s390-ccw.img", 267 "s390-netboot.img", true); 268 269 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 270 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 271 OBJECT(dev)); 272 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 273 274 /* register hypercalls */ 275 virtio_ccw_register_hcalls(); 276 277 s390_enable_css_support(s390_cpu_addr2state(0)); 278 279 ret = css_create_css_image(VIRTUAL_CSSID, true); 280 281 assert(ret == 0); 282 if (css_migration_enabled()) { 283 css_register_vmstate(); 284 } 285 286 /* Create VirtIO network adapters */ 287 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 288 289 /* init consoles */ 290 if (serial_hd(0)) { 291 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 292 } 293 if (serial_hd(1)) { 294 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 295 } 296 297 /* init the TOD clock */ 298 s390_init_tod(); 299 } 300 301 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 302 DeviceState *dev, Error **errp) 303 { 304 MachineState *ms = MACHINE(hotplug_dev); 305 S390CPU *cpu = S390_CPU(dev); 306 307 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 308 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 309 310 if (dev->hotplugged) { 311 raise_irq_cpu_hotplug(); 312 } 313 } 314 315 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 316 { 317 S390CPU *cpu = S390_CPU(cs); 318 319 s390_ipl_prepare_cpu(cpu); 320 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 321 } 322 323 static void s390_machine_unprotect(S390CcwMachineState *ms) 324 { 325 s390_pv_vm_disable(); 326 ms->pv = false; 327 migrate_del_blocker(pv_mig_blocker); 328 error_free_or_abort(&pv_mig_blocker); 329 ram_block_discard_disable(false); 330 } 331 332 static int s390_machine_protect(S390CcwMachineState *ms) 333 { 334 Error *local_err = NULL; 335 int rc; 336 337 /* 338 * Discarding of memory in RAM blocks does not work as expected with 339 * protected VMs. Sharing and unsharing pages would be required. Disable 340 * it for now, until until we have a solution to make at least Linux 341 * guests either support it (e.g., virtio-balloon) or fail gracefully. 342 */ 343 rc = ram_block_discard_disable(true); 344 if (rc) { 345 error_report("protected VMs: cannot disable RAM discard"); 346 return rc; 347 } 348 349 error_setg(&pv_mig_blocker, 350 "protected VMs are currently not migrateable."); 351 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 352 if (rc) { 353 ram_block_discard_disable(false); 354 error_report_err(local_err); 355 error_free_or_abort(&pv_mig_blocker); 356 return rc; 357 } 358 359 /* Create SE VM */ 360 rc = s390_pv_vm_enable(); 361 if (rc) { 362 ram_block_discard_disable(false); 363 migrate_del_blocker(pv_mig_blocker); 364 error_free_or_abort(&pv_mig_blocker); 365 return rc; 366 } 367 368 ms->pv = true; 369 370 /* Set SE header and unpack */ 371 rc = s390_ipl_prepare_pv_header(); 372 if (rc) { 373 goto out_err; 374 } 375 376 /* Decrypt image */ 377 rc = s390_ipl_pv_unpack(); 378 if (rc) { 379 goto out_err; 380 } 381 382 /* Verify integrity */ 383 rc = s390_pv_verify(); 384 if (rc) { 385 goto out_err; 386 } 387 return rc; 388 389 out_err: 390 s390_machine_unprotect(ms); 391 return rc; 392 } 393 394 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 395 { 396 CPUState *cs; 397 398 if (!s390_is_pv()) { 399 return; 400 } 401 /* Unsharing requires all cpus to be stopped */ 402 CPU_FOREACH(cs) { 403 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 404 } 405 s390_pv_unshare(); 406 s390_pv_prep_reset(); 407 } 408 409 static void s390_machine_reset(MachineState *machine) 410 { 411 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 412 enum s390_reset reset_type; 413 CPUState *cs, *t; 414 S390CPU *cpu; 415 416 /* get the reset parameters, reset them once done */ 417 s390_ipl_get_reset_request(&cs, &reset_type); 418 419 /* all CPUs are paused and synchronized at this point */ 420 s390_cmma_reset(); 421 422 cpu = S390_CPU(cs); 423 424 switch (reset_type) { 425 case S390_RESET_EXTERNAL: 426 case S390_RESET_REIPL: 427 if (s390_is_pv()) { 428 s390_machine_unprotect(ms); 429 } 430 431 qemu_devices_reset(); 432 s390_crypto_reset(); 433 434 /* configure and start the ipl CPU only */ 435 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 436 break; 437 case S390_RESET_MODIFIED_CLEAR: 438 /* 439 * Susbsystem reset needs to be done before we unshare memory 440 * and lose access to VIRTIO structures in guest memory. 441 */ 442 subsystem_reset(); 443 s390_crypto_reset(); 444 s390_pv_prepare_reset(ms); 445 CPU_FOREACH(t) { 446 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 447 } 448 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 449 break; 450 case S390_RESET_LOAD_NORMAL: 451 /* 452 * Susbsystem reset needs to be done before we unshare memory 453 * and lose access to VIRTIO structures in guest memory. 454 */ 455 subsystem_reset(); 456 s390_pv_prepare_reset(ms); 457 CPU_FOREACH(t) { 458 if (t == cs) { 459 continue; 460 } 461 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 462 } 463 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 464 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 465 break; 466 case S390_RESET_PV: /* Subcode 10 */ 467 subsystem_reset(); 468 s390_crypto_reset(); 469 470 CPU_FOREACH(t) { 471 if (t == cs) { 472 continue; 473 } 474 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 475 } 476 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 477 478 if (s390_machine_protect(ms)) { 479 s390_pv_inject_reset_error(cs); 480 /* 481 * Continue after the diag308 so the guest knows something 482 * went wrong. 483 */ 484 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 485 return; 486 } 487 488 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 489 break; 490 default: 491 g_assert_not_reached(); 492 } 493 s390_ipl_clear_reset_request(); 494 } 495 496 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 497 DeviceState *dev, Error **errp) 498 { 499 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 500 s390_cpu_plug(hotplug_dev, dev, errp); 501 } 502 } 503 504 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 505 DeviceState *dev, Error **errp) 506 { 507 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 508 error_setg(errp, "CPU hot unplug not supported on this machine"); 509 return; 510 } 511 } 512 513 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 514 unsigned cpu_index) 515 { 516 MachineClass *mc = MACHINE_GET_CLASS(ms); 517 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 518 519 assert(cpu_index < possible_cpus->len); 520 return possible_cpus->cpus[cpu_index].props; 521 } 522 523 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 524 { 525 int i; 526 unsigned int max_cpus = ms->smp.max_cpus; 527 528 if (ms->possible_cpus) { 529 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 530 return ms->possible_cpus; 531 } 532 533 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 534 sizeof(CPUArchId) * max_cpus); 535 ms->possible_cpus->len = max_cpus; 536 for (i = 0; i < ms->possible_cpus->len; i++) { 537 ms->possible_cpus->cpus[i].type = ms->cpu_type; 538 ms->possible_cpus->cpus[i].vcpus_count = 1; 539 ms->possible_cpus->cpus[i].arch_id = i; 540 ms->possible_cpus->cpus[i].props.has_core_id = true; 541 ms->possible_cpus->cpus[i].props.core_id = i; 542 } 543 544 return ms->possible_cpus; 545 } 546 547 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 548 DeviceState *dev) 549 { 550 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 551 return HOTPLUG_HANDLER(machine); 552 } 553 return NULL; 554 } 555 556 static void s390_hot_add_cpu(MachineState *machine, 557 const int64_t id, Error **errp) 558 { 559 ObjectClass *oc; 560 561 g_assert(machine->possible_cpus->cpus[0].cpu); 562 oc = OBJECT_CLASS(CPU_GET_CLASS(machine->possible_cpus->cpus[0].cpu)); 563 564 s390x_new_cpu(object_class_get_name(oc), id, errp); 565 } 566 567 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 568 { 569 CPUState *cs = qemu_get_cpu(cpu_index); 570 571 s390_cpu_restart(S390_CPU(cs)); 572 } 573 574 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 575 { 576 /* same logic as in sclp.c */ 577 int increment_size = 20; 578 ram_addr_t newsz; 579 580 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 581 increment_size++; 582 } 583 newsz = sz >> increment_size << increment_size; 584 585 if (sz != newsz) { 586 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 587 "MB to match machine restrictions. Consider updating " 588 "the guest definition.\n", (uint64_t) (sz / MiB), 589 (uint64_t) (newsz / MiB)); 590 } 591 return newsz; 592 } 593 594 static void ccw_machine_class_init(ObjectClass *oc, void *data) 595 { 596 MachineClass *mc = MACHINE_CLASS(oc); 597 NMIClass *nc = NMI_CLASS(oc); 598 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 599 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 600 601 s390mc->ri_allowed = true; 602 s390mc->cpu_model_allowed = true; 603 s390mc->css_migration_enabled = true; 604 s390mc->hpage_1m_allowed = true; 605 mc->init = ccw_init; 606 mc->reset = s390_machine_reset; 607 mc->hot_add_cpu = s390_hot_add_cpu; 608 mc->block_default_type = IF_VIRTIO; 609 mc->no_cdrom = 1; 610 mc->no_floppy = 1; 611 mc->no_parallel = 1; 612 mc->no_sdcard = 1; 613 mc->max_cpus = S390_MAX_CPUS; 614 mc->has_hotpluggable_cpus = true; 615 assert(!mc->get_hotplug_handler); 616 mc->get_hotplug_handler = s390_get_hotplug_handler; 617 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 618 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 619 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 620 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 621 hc->plug = s390_machine_device_plug; 622 hc->unplug_request = s390_machine_device_unplug_request; 623 nc->nmi_monitor_handler = s390_nmi; 624 mc->default_ram_id = "s390.ram"; 625 } 626 627 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 628 { 629 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 630 631 return ms->aes_key_wrap; 632 } 633 634 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 635 Error **errp) 636 { 637 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 638 639 ms->aes_key_wrap = value; 640 } 641 642 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 643 { 644 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 645 646 return ms->dea_key_wrap; 647 } 648 649 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 650 Error **errp) 651 { 652 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 653 654 ms->dea_key_wrap = value; 655 } 656 657 static S390CcwMachineClass *current_mc; 658 659 /* 660 * Get the class of the s390-ccw-virtio machine that is currently in use. 661 * Note: libvirt is using the "none" machine to probe for the features of the 662 * host CPU, so in case this is called with the "none" machine, the function 663 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 664 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 665 * below return the correct default value for the "none" machine. 666 * 667 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 668 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 669 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 670 * CPU initialization and s390_has_feat() later should be sufficient. 671 */ 672 static S390CcwMachineClass *get_machine_class(void) 673 { 674 if (unlikely(!current_mc)) { 675 /* 676 * No s390 ccw machine was instantiated, we are likely to 677 * be called for the 'none' machine. The properties will 678 * have their after-initialization values. 679 */ 680 current_mc = S390_MACHINE_CLASS( 681 object_class_by_name(TYPE_S390_CCW_MACHINE)); 682 } 683 return current_mc; 684 } 685 686 bool ri_allowed(void) 687 { 688 return get_machine_class()->ri_allowed; 689 } 690 691 bool cpu_model_allowed(void) 692 { 693 return get_machine_class()->cpu_model_allowed; 694 } 695 696 bool hpage_1m_allowed(void) 697 { 698 return get_machine_class()->hpage_1m_allowed; 699 } 700 701 static char *machine_get_loadparm(Object *obj, Error **errp) 702 { 703 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 704 705 /* make a NUL-terminated string */ 706 return g_strndup((char *) 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