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 "hw/s390x/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 TYPE_S390_PCI_HOST_BRIDGE, 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(); 165 166 /* 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(), &error_fatal); 174 /* Initialize storage key device */ 175 s390_skeys_init(); 176 /* Initialize storage attributes device */ 177 s390_stattrib_init(); 178 } 179 180 static void s390_init_ipl_dev(const char *kernel_filename, 181 const char *kernel_cmdline, 182 const char *initrd_filename, const char *firmware, 183 const char *netboot_fw, bool enforce_bios) 184 { 185 Object *new = object_new(TYPE_S390_IPL); 186 DeviceState *dev = DEVICE(new); 187 char *netboot_fw_prop; 188 189 if (kernel_filename) { 190 qdev_prop_set_string(dev, "kernel", kernel_filename); 191 } 192 if (initrd_filename) { 193 qdev_prop_set_string(dev, "initrd", initrd_filename); 194 } 195 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 196 qdev_prop_set_string(dev, "firmware", firmware); 197 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 198 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 199 if (!strlen(netboot_fw_prop)) { 200 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 201 } 202 g_free(netboot_fw_prop); 203 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 204 new); 205 object_unref(new); 206 qdev_realize(dev, NULL, &error_fatal); 207 } 208 209 static void s390_create_virtio_net(BusState *bus, const char *name) 210 { 211 int i; 212 213 for (i = 0; i < nb_nics; i++) { 214 NICInfo *nd = &nd_table[i]; 215 DeviceState *dev; 216 217 if (!nd->model) { 218 nd->model = g_strdup("virtio"); 219 } 220 221 qemu_check_nic_model(nd, "virtio"); 222 223 dev = qdev_new(name); 224 qdev_set_nic_properties(dev, nd); 225 qdev_realize_and_unref(dev, bus, &error_fatal); 226 } 227 } 228 229 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 230 { 231 DeviceState *dev; 232 233 dev = qdev_new(type); 234 qdev_prop_set_chr(dev, "chardev", chardev); 235 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 236 } 237 238 static void ccw_init(MachineState *machine) 239 { 240 int ret; 241 VirtualCssBus *css_bus; 242 DeviceState *dev; 243 244 s390_sclp_init(); 245 /* init memory + setup max page size. Required for the CPU model */ 246 s390_memory_init(machine->ram); 247 248 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 249 s390_init_cpus(machine); 250 251 s390_flic_init(); 252 253 /* init the SIGP facility */ 254 s390_init_sigp(); 255 256 /* create AP bridge and bus(es) */ 257 s390_init_ap(); 258 259 /* get a BUS */ 260 css_bus = virtual_css_bus_init(); 261 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 262 machine->initrd_filename, "s390-ccw.img", 263 "s390-netboot.img", true); 264 265 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 266 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 267 OBJECT(dev)); 268 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 269 270 /* register hypercalls */ 271 virtio_ccw_register_hcalls(); 272 273 s390_enable_css_support(s390_cpu_addr2state(0)); 274 275 ret = css_create_css_image(VIRTUAL_CSSID, true); 276 277 assert(ret == 0); 278 if (css_migration_enabled()) { 279 css_register_vmstate(); 280 } 281 282 /* Create VirtIO network adapters */ 283 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 284 285 /* init consoles */ 286 if (serial_hd(0)) { 287 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 288 } 289 if (serial_hd(1)) { 290 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 291 } 292 293 /* init the TOD clock */ 294 s390_init_tod(); 295 } 296 297 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 298 DeviceState *dev, Error **errp) 299 { 300 MachineState *ms = MACHINE(hotplug_dev); 301 S390CPU *cpu = S390_CPU(dev); 302 303 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 304 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 305 306 if (dev->hotplugged) { 307 raise_irq_cpu_hotplug(); 308 } 309 } 310 311 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 312 { 313 S390CPU *cpu = S390_CPU(cs); 314 315 s390_ipl_prepare_cpu(cpu); 316 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 317 } 318 319 static void s390_machine_unprotect(S390CcwMachineState *ms) 320 { 321 s390_pv_vm_disable(); 322 ms->pv = false; 323 migrate_del_blocker(pv_mig_blocker); 324 error_free_or_abort(&pv_mig_blocker); 325 ram_block_discard_disable(false); 326 } 327 328 static int s390_machine_protect(S390CcwMachineState *ms) 329 { 330 Error *local_err = NULL; 331 int rc; 332 333 /* 334 * Discarding of memory in RAM blocks does not work as expected with 335 * protected VMs. Sharing and unsharing pages would be required. Disable 336 * it for now, until until we have a solution to make at least Linux 337 * guests either support it (e.g., virtio-balloon) or fail gracefully. 338 */ 339 rc = ram_block_discard_disable(true); 340 if (rc) { 341 error_report("protected VMs: cannot disable RAM discard"); 342 return rc; 343 } 344 345 error_setg(&pv_mig_blocker, 346 "protected VMs are currently not migrateable."); 347 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 348 if (rc) { 349 ram_block_discard_disable(false); 350 error_report_err(local_err); 351 error_free_or_abort(&pv_mig_blocker); 352 return rc; 353 } 354 355 /* Create SE VM */ 356 rc = s390_pv_vm_enable(); 357 if (rc) { 358 ram_block_discard_disable(false); 359 migrate_del_blocker(pv_mig_blocker); 360 error_free_or_abort(&pv_mig_blocker); 361 return rc; 362 } 363 364 ms->pv = true; 365 366 /* Set SE header and unpack */ 367 rc = s390_ipl_prepare_pv_header(); 368 if (rc) { 369 goto out_err; 370 } 371 372 /* Decrypt image */ 373 rc = s390_ipl_pv_unpack(); 374 if (rc) { 375 goto out_err; 376 } 377 378 /* Verify integrity */ 379 rc = s390_pv_verify(); 380 if (rc) { 381 goto out_err; 382 } 383 return rc; 384 385 out_err: 386 s390_machine_unprotect(ms); 387 return rc; 388 } 389 390 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 391 { 392 CPUState *cs; 393 394 if (!s390_is_pv()) { 395 return; 396 } 397 /* Unsharing requires all cpus to be stopped */ 398 CPU_FOREACH(cs) { 399 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 400 } 401 s390_pv_unshare(); 402 s390_pv_prep_reset(); 403 } 404 405 static void s390_machine_reset(MachineState *machine) 406 { 407 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 408 enum s390_reset reset_type; 409 CPUState *cs, *t; 410 S390CPU *cpu; 411 412 /* get the reset parameters, reset them once done */ 413 s390_ipl_get_reset_request(&cs, &reset_type); 414 415 /* all CPUs are paused and synchronized at this point */ 416 s390_cmma_reset(); 417 418 cpu = S390_CPU(cs); 419 420 switch (reset_type) { 421 case S390_RESET_EXTERNAL: 422 case S390_RESET_REIPL: 423 if (s390_is_pv()) { 424 s390_machine_unprotect(ms); 425 } 426 427 qemu_devices_reset(); 428 s390_crypto_reset(); 429 430 /* configure and start the ipl CPU only */ 431 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 432 break; 433 case S390_RESET_MODIFIED_CLEAR: 434 /* 435 * Susbsystem reset needs to be done before we unshare memory 436 * and lose access to VIRTIO structures in guest memory. 437 */ 438 subsystem_reset(); 439 s390_crypto_reset(); 440 s390_pv_prepare_reset(ms); 441 CPU_FOREACH(t) { 442 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 443 } 444 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 445 break; 446 case S390_RESET_LOAD_NORMAL: 447 /* 448 * Susbsystem reset needs to be done before we unshare memory 449 * and lose access to VIRTIO structures in guest memory. 450 */ 451 subsystem_reset(); 452 s390_pv_prepare_reset(ms); 453 CPU_FOREACH(t) { 454 if (t == cs) { 455 continue; 456 } 457 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 458 } 459 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 460 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 461 break; 462 case S390_RESET_PV: /* Subcode 10 */ 463 subsystem_reset(); 464 s390_crypto_reset(); 465 466 CPU_FOREACH(t) { 467 if (t == cs) { 468 continue; 469 } 470 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 471 } 472 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 473 474 if (s390_machine_protect(ms)) { 475 s390_pv_inject_reset_error(cs); 476 /* 477 * Continue after the diag308 so the guest knows something 478 * went wrong. 479 */ 480 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 481 return; 482 } 483 484 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 485 break; 486 default: 487 g_assert_not_reached(); 488 } 489 490 CPU_FOREACH(t) { 491 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 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_nmi(NMIState *n, int cpu_index, Error **errp) 557 { 558 CPUState *cs = qemu_get_cpu(cpu_index); 559 560 s390_cpu_restart(S390_CPU(cs)); 561 } 562 563 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 564 { 565 /* same logic as in sclp.c */ 566 int increment_size = 20; 567 ram_addr_t newsz; 568 569 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 570 increment_size++; 571 } 572 newsz = sz >> increment_size << increment_size; 573 574 if (sz != newsz) { 575 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 576 "MB to match machine restrictions. Consider updating " 577 "the guest definition.\n", (uint64_t) (sz / MiB), 578 (uint64_t) (newsz / MiB)); 579 } 580 return newsz; 581 } 582 583 static void ccw_machine_class_init(ObjectClass *oc, void *data) 584 { 585 MachineClass *mc = MACHINE_CLASS(oc); 586 NMIClass *nc = NMI_CLASS(oc); 587 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 588 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 589 590 s390mc->ri_allowed = true; 591 s390mc->cpu_model_allowed = true; 592 s390mc->css_migration_enabled = true; 593 s390mc->hpage_1m_allowed = true; 594 mc->init = ccw_init; 595 mc->reset = s390_machine_reset; 596 mc->block_default_type = IF_VIRTIO; 597 mc->no_cdrom = 1; 598 mc->no_floppy = 1; 599 mc->no_parallel = 1; 600 mc->no_sdcard = 1; 601 mc->max_cpus = S390_MAX_CPUS; 602 mc->has_hotpluggable_cpus = true; 603 assert(!mc->get_hotplug_handler); 604 mc->get_hotplug_handler = s390_get_hotplug_handler; 605 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 606 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 607 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 608 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 609 hc->plug = s390_machine_device_plug; 610 hc->unplug_request = s390_machine_device_unplug_request; 611 nc->nmi_monitor_handler = s390_nmi; 612 mc->default_ram_id = "s390.ram"; 613 } 614 615 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 616 { 617 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 618 619 return ms->aes_key_wrap; 620 } 621 622 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 623 Error **errp) 624 { 625 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 626 627 ms->aes_key_wrap = value; 628 } 629 630 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 631 { 632 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 633 634 return ms->dea_key_wrap; 635 } 636 637 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 638 Error **errp) 639 { 640 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 641 642 ms->dea_key_wrap = value; 643 } 644 645 static S390CcwMachineClass *current_mc; 646 647 /* 648 * Get the class of the s390-ccw-virtio machine that is currently in use. 649 * Note: libvirt is using the "none" machine to probe for the features of the 650 * host CPU, so in case this is called with the "none" machine, the function 651 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 652 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 653 * below return the correct default value for the "none" machine. 654 * 655 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 656 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 657 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 658 * CPU initialization and s390_has_feat() later should be sufficient. 659 */ 660 static S390CcwMachineClass *get_machine_class(void) 661 { 662 if (unlikely(!current_mc)) { 663 /* 664 * No s390 ccw machine was instantiated, we are likely to 665 * be called for the 'none' machine. The properties will 666 * have their after-initialization values. 667 */ 668 current_mc = S390_CCW_MACHINE_CLASS( 669 object_class_by_name(TYPE_S390_CCW_MACHINE)); 670 } 671 return current_mc; 672 } 673 674 bool ri_allowed(void) 675 { 676 return get_machine_class()->ri_allowed; 677 } 678 679 bool cpu_model_allowed(void) 680 { 681 return get_machine_class()->cpu_model_allowed; 682 } 683 684 bool hpage_1m_allowed(void) 685 { 686 return get_machine_class()->hpage_1m_allowed; 687 } 688 689 static char *machine_get_loadparm(Object *obj, Error **errp) 690 { 691 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 692 693 /* make a NUL-terminated string */ 694 return g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 695 } 696 697 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 698 { 699 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 700 int i; 701 702 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 703 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 704 705 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 706 (c == ' ')) { 707 ms->loadparm[i] = c; 708 } else { 709 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 710 c, c); 711 return; 712 } 713 } 714 715 for (; i < sizeof(ms->loadparm); i++) { 716 ms->loadparm[i] = ' '; /* pad right with spaces */ 717 } 718 } 719 static inline void s390_machine_initfn(Object *obj) 720 { 721 object_property_add_bool(obj, "aes-key-wrap", 722 machine_get_aes_key_wrap, 723 machine_set_aes_key_wrap); 724 object_property_set_description(obj, "aes-key-wrap", 725 "enable/disable AES key wrapping using the CPACF wrapping key"); 726 object_property_set_bool(obj, "aes-key-wrap", true, NULL); 727 728 object_property_add_bool(obj, "dea-key-wrap", 729 machine_get_dea_key_wrap, 730 machine_set_dea_key_wrap); 731 object_property_set_description(obj, "dea-key-wrap", 732 "enable/disable DEA key wrapping using the CPACF wrapping key"); 733 object_property_set_bool(obj, "dea-key-wrap", true, NULL); 734 object_property_add_str(obj, "loadparm", 735 machine_get_loadparm, machine_set_loadparm); 736 object_property_set_description(obj, "loadparm", 737 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 738 " to upper case) to pass to machine loader, boot manager," 739 " and guest kernel"); 740 } 741 742 static const TypeInfo ccw_machine_info = { 743 .name = TYPE_S390_CCW_MACHINE, 744 .parent = TYPE_MACHINE, 745 .abstract = true, 746 .instance_size = sizeof(S390CcwMachineState), 747 .instance_init = s390_machine_initfn, 748 .class_size = sizeof(S390CcwMachineClass), 749 .class_init = ccw_machine_class_init, 750 .interfaces = (InterfaceInfo[]) { 751 { TYPE_NMI }, 752 { TYPE_HOTPLUG_HANDLER}, 753 { } 754 }, 755 }; 756 757 bool css_migration_enabled(void) 758 { 759 return get_machine_class()->css_migration_enabled; 760 } 761 762 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 763 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 764 void *data) \ 765 { \ 766 MachineClass *mc = MACHINE_CLASS(oc); \ 767 ccw_machine_##suffix##_class_options(mc); \ 768 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \ 769 if (latest) { \ 770 mc->alias = "s390-ccw-virtio"; \ 771 mc->is_default = true; \ 772 } \ 773 } \ 774 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 775 { \ 776 MachineState *machine = MACHINE(obj); \ 777 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 778 ccw_machine_##suffix##_instance_options(machine); \ 779 } \ 780 static const TypeInfo ccw_machine_##suffix##_info = { \ 781 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 782 .parent = TYPE_S390_CCW_MACHINE, \ 783 .class_init = ccw_machine_##suffix##_class_init, \ 784 .instance_init = ccw_machine_##suffix##_instance_init, \ 785 }; \ 786 static void ccw_machine_register_##suffix(void) \ 787 { \ 788 type_register_static(&ccw_machine_##suffix##_info); \ 789 } \ 790 type_init(ccw_machine_register_##suffix) 791 792 static void ccw_machine_6_0_instance_options(MachineState *machine) 793 { 794 } 795 796 static void ccw_machine_6_0_class_options(MachineClass *mc) 797 { 798 } 799 DEFINE_CCW_MACHINE(6_0, "6.0", true); 800 801 static void ccw_machine_5_2_instance_options(MachineState *machine) 802 { 803 ccw_machine_6_0_instance_options(machine); 804 } 805 806 static void ccw_machine_5_2_class_options(MachineClass *mc) 807 { 808 ccw_machine_6_0_class_options(mc); 809 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 810 } 811 DEFINE_CCW_MACHINE(5_2, "5.2", false); 812 813 static void ccw_machine_5_1_instance_options(MachineState *machine) 814 { 815 ccw_machine_5_2_instance_options(machine); 816 } 817 818 static void ccw_machine_5_1_class_options(MachineClass *mc) 819 { 820 ccw_machine_5_2_class_options(mc); 821 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 822 } 823 DEFINE_CCW_MACHINE(5_1, "5.1", false); 824 825 static void ccw_machine_5_0_instance_options(MachineState *machine) 826 { 827 ccw_machine_5_1_instance_options(machine); 828 } 829 830 static void ccw_machine_5_0_class_options(MachineClass *mc) 831 { 832 ccw_machine_5_1_class_options(mc); 833 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 834 } 835 DEFINE_CCW_MACHINE(5_0, "5.0", false); 836 837 static void ccw_machine_4_2_instance_options(MachineState *machine) 838 { 839 ccw_machine_5_0_instance_options(machine); 840 } 841 842 static void ccw_machine_4_2_class_options(MachineClass *mc) 843 { 844 ccw_machine_5_0_class_options(mc); 845 mc->fixup_ram_size = s390_fixup_ram_size; 846 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 847 } 848 DEFINE_CCW_MACHINE(4_2, "4.2", false); 849 850 static void ccw_machine_4_1_instance_options(MachineState *machine) 851 { 852 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 853 ccw_machine_4_2_instance_options(machine); 854 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 855 } 856 857 static void ccw_machine_4_1_class_options(MachineClass *mc) 858 { 859 ccw_machine_4_2_class_options(mc); 860 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 861 } 862 DEFINE_CCW_MACHINE(4_1, "4.1", false); 863 864 static void ccw_machine_4_0_instance_options(MachineState *machine) 865 { 866 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 867 ccw_machine_4_1_instance_options(machine); 868 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 869 } 870 871 static void ccw_machine_4_0_class_options(MachineClass *mc) 872 { 873 ccw_machine_4_1_class_options(mc); 874 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 875 } 876 DEFINE_CCW_MACHINE(4_0, "4.0", false); 877 878 static void ccw_machine_3_1_instance_options(MachineState *machine) 879 { 880 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 881 ccw_machine_4_0_instance_options(machine); 882 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 883 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 884 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 885 } 886 887 static void ccw_machine_3_1_class_options(MachineClass *mc) 888 { 889 ccw_machine_4_0_class_options(mc); 890 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 891 } 892 DEFINE_CCW_MACHINE(3_1, "3.1", false); 893 894 static void ccw_machine_3_0_instance_options(MachineState *machine) 895 { 896 ccw_machine_3_1_instance_options(machine); 897 } 898 899 static void ccw_machine_3_0_class_options(MachineClass *mc) 900 { 901 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 902 903 s390mc->hpage_1m_allowed = false; 904 ccw_machine_3_1_class_options(mc); 905 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 906 } 907 DEFINE_CCW_MACHINE(3_0, "3.0", false); 908 909 static void ccw_machine_2_12_instance_options(MachineState *machine) 910 { 911 ccw_machine_3_0_instance_options(machine); 912 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 913 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 914 } 915 916 static void ccw_machine_2_12_class_options(MachineClass *mc) 917 { 918 ccw_machine_3_0_class_options(mc); 919 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 920 } 921 DEFINE_CCW_MACHINE(2_12, "2.12", false); 922 923 static void ccw_machine_2_11_instance_options(MachineState *machine) 924 { 925 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 926 ccw_machine_2_12_instance_options(machine); 927 928 /* before 2.12 we emulated the very first z900 */ 929 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 930 } 931 932 static void ccw_machine_2_11_class_options(MachineClass *mc) 933 { 934 static GlobalProperty compat[] = { 935 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 936 }; 937 938 ccw_machine_2_12_class_options(mc); 939 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 940 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 941 } 942 DEFINE_CCW_MACHINE(2_11, "2.11", false); 943 944 static void ccw_machine_2_10_instance_options(MachineState *machine) 945 { 946 ccw_machine_2_11_instance_options(machine); 947 } 948 949 static void ccw_machine_2_10_class_options(MachineClass *mc) 950 { 951 ccw_machine_2_11_class_options(mc); 952 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 953 } 954 DEFINE_CCW_MACHINE(2_10, "2.10", false); 955 956 static void ccw_machine_2_9_instance_options(MachineState *machine) 957 { 958 ccw_machine_2_10_instance_options(machine); 959 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 960 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 961 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 962 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 963 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 964 } 965 966 static void ccw_machine_2_9_class_options(MachineClass *mc) 967 { 968 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 969 static GlobalProperty compat[] = { 970 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 971 }; 972 973 ccw_machine_2_10_class_options(mc); 974 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 975 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 976 s390mc->css_migration_enabled = false; 977 } 978 DEFINE_CCW_MACHINE(2_9, "2.9", false); 979 980 static void ccw_machine_2_8_instance_options(MachineState *machine) 981 { 982 ccw_machine_2_9_instance_options(machine); 983 } 984 985 static void ccw_machine_2_8_class_options(MachineClass *mc) 986 { 987 static GlobalProperty compat[] = { 988 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 989 }; 990 991 ccw_machine_2_9_class_options(mc); 992 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 993 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 994 } 995 DEFINE_CCW_MACHINE(2_8, "2.8", false); 996 997 static void ccw_machine_2_7_instance_options(MachineState *machine) 998 { 999 ccw_machine_2_8_instance_options(machine); 1000 } 1001 1002 static void ccw_machine_2_7_class_options(MachineClass *mc) 1003 { 1004 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1005 1006 s390mc->cpu_model_allowed = false; 1007 ccw_machine_2_8_class_options(mc); 1008 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1009 } 1010 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1011 1012 static void ccw_machine_2_6_instance_options(MachineState *machine) 1013 { 1014 ccw_machine_2_7_instance_options(machine); 1015 } 1016 1017 static void ccw_machine_2_6_class_options(MachineClass *mc) 1018 { 1019 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1020 static GlobalProperty compat[] = { 1021 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1022 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1023 }; 1024 1025 s390mc->ri_allowed = false; 1026 ccw_machine_2_7_class_options(mc); 1027 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1028 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1029 } 1030 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1031 1032 static void ccw_machine_2_5_instance_options(MachineState *machine) 1033 { 1034 ccw_machine_2_6_instance_options(machine); 1035 } 1036 1037 static void ccw_machine_2_5_class_options(MachineClass *mc) 1038 { 1039 ccw_machine_2_6_class_options(mc); 1040 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1041 } 1042 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1043 1044 static void ccw_machine_2_4_instance_options(MachineState *machine) 1045 { 1046 ccw_machine_2_5_instance_options(machine); 1047 } 1048 1049 static void ccw_machine_2_4_class_options(MachineClass *mc) 1050 { 1051 static GlobalProperty compat[] = { 1052 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1053 { "virtio-blk-ccw", "max_revision", "0", }, 1054 { "virtio-balloon-ccw", "max_revision", "0", }, 1055 { "virtio-serial-ccw", "max_revision", "0", }, 1056 { "virtio-9p-ccw", "max_revision", "0", }, 1057 { "virtio-rng-ccw", "max_revision", "0", }, 1058 { "virtio-net-ccw", "max_revision", "0", }, 1059 { "virtio-scsi-ccw", "max_revision", "0", }, 1060 { "vhost-scsi-ccw", "max_revision", "0", }, 1061 }; 1062 1063 ccw_machine_2_5_class_options(mc); 1064 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1065 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1066 } 1067 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1068 1069 static void ccw_machine_register_types(void) 1070 { 1071 type_register_static(&ccw_machine_info); 1072 } 1073 1074 type_init(ccw_machine_register_types) 1075