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 "exec/address-spaces.h" 18 #include "exec/ram_addr.h" 19 #include "hw/s390x/s390-virtio-hcall.h" 20 #include "hw/s390x/sclp.h" 21 #include "hw/s390x/s390_flic.h" 22 #include "hw/s390x/ioinst.h" 23 #include "hw/s390x/css.h" 24 #include "virtio-ccw.h" 25 #include "qemu/config-file.h" 26 #include "qemu/ctype.h" 27 #include "qemu/error-report.h" 28 #include "qemu/option.h" 29 #include "qemu/qemu-print.h" 30 #include "hw/s390x/s390-pci-bus.h" 31 #include "sysemu/reset.h" 32 #include "hw/s390x/storage-keys.h" 33 #include "hw/s390x/storage-attributes.h" 34 #include "hw/s390x/event-facility.h" 35 #include "ipl.h" 36 #include "hw/s390x/s390-virtio-ccw.h" 37 #include "hw/s390x/css-bridge.h" 38 #include "hw/s390x/ap-bridge.h" 39 #include "migration/register.h" 40 #include "cpu_models.h" 41 #include "hw/nmi.h" 42 #include "hw/qdev-properties.h" 43 #include "hw/s390x/tod.h" 44 #include "sysemu/sysemu.h" 45 #include "hw/s390x/pv.h" 46 #include "migration/blocker.h" 47 48 static Error *pv_mig_blocker; 49 50 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 51 { 52 static MachineState *ms; 53 54 if (!ms) { 55 ms = MACHINE(qdev_get_machine()); 56 g_assert(ms->possible_cpus); 57 } 58 59 /* CPU address corresponds to the core_id and the index */ 60 if (cpu_addr >= ms->possible_cpus->len) { 61 return NULL; 62 } 63 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 64 } 65 66 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 67 Error **errp) 68 { 69 S390CPU *cpu = S390_CPU(object_new(typename)); 70 S390CPU *ret = NULL; 71 72 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) { 73 goto out; 74 } 75 if (!qdev_realize(DEVICE(cpu), NULL, errp)) { 76 goto out; 77 } 78 ret = cpu; 79 80 out: 81 object_unref(OBJECT(cpu)); 82 return ret; 83 } 84 85 static void s390_init_cpus(MachineState *machine) 86 { 87 MachineClass *mc = MACHINE_GET_CLASS(machine); 88 int i; 89 90 /* initialize possible_cpus */ 91 mc->possible_cpu_arch_ids(machine); 92 93 for (i = 0; i < machine->smp.cpus; i++) { 94 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 95 } 96 } 97 98 static const char *const reset_dev_types[] = { 99 TYPE_VIRTUAL_CSS_BRIDGE, 100 "s390-sclp-event-facility", 101 "s390-flic", 102 "diag288", 103 TYPE_S390_PCI_HOST_BRIDGE, 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 MachineState *ms = MACHINE(qdev_get_machine()); 145 146 if (mem < ms->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 /* Need CPU model to be determined before we can set up PV */ 252 s390_pv_init(machine->cgs, &error_fatal); 253 254 s390_flic_init(); 255 256 /* init the SIGP facility */ 257 s390_init_sigp(); 258 259 /* create AP bridge and bus(es) */ 260 s390_init_ap(); 261 262 /* get a BUS */ 263 css_bus = virtual_css_bus_init(); 264 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 265 machine->initrd_filename, 266 machine->firmware ?: "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 } 493 494 CPU_FOREACH(t) { 495 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 496 } 497 s390_ipl_clear_reset_request(); 498 } 499 500 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 501 DeviceState *dev, Error **errp) 502 { 503 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 504 s390_cpu_plug(hotplug_dev, dev, errp); 505 } 506 } 507 508 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 509 DeviceState *dev, Error **errp) 510 { 511 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 512 error_setg(errp, "CPU hot unplug not supported on this machine"); 513 return; 514 } 515 } 516 517 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 518 unsigned cpu_index) 519 { 520 MachineClass *mc = MACHINE_GET_CLASS(ms); 521 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 522 523 assert(cpu_index < possible_cpus->len); 524 return possible_cpus->cpus[cpu_index].props; 525 } 526 527 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 528 { 529 int i; 530 unsigned int max_cpus = ms->smp.max_cpus; 531 532 if (ms->possible_cpus) { 533 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 534 return ms->possible_cpus; 535 } 536 537 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 538 sizeof(CPUArchId) * max_cpus); 539 ms->possible_cpus->len = max_cpus; 540 for (i = 0; i < ms->possible_cpus->len; i++) { 541 ms->possible_cpus->cpus[i].type = ms->cpu_type; 542 ms->possible_cpus->cpus[i].vcpus_count = 1; 543 ms->possible_cpus->cpus[i].arch_id = i; 544 ms->possible_cpus->cpus[i].props.has_core_id = true; 545 ms->possible_cpus->cpus[i].props.core_id = i; 546 } 547 548 return ms->possible_cpus; 549 } 550 551 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 552 DeviceState *dev) 553 { 554 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 555 return HOTPLUG_HANDLER(machine); 556 } 557 return NULL; 558 } 559 560 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 561 { 562 CPUState *cs = qemu_get_cpu(cpu_index); 563 564 s390_cpu_restart(S390_CPU(cs)); 565 } 566 567 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 568 { 569 /* same logic as in sclp.c */ 570 int increment_size = 20; 571 ram_addr_t newsz; 572 573 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 574 increment_size++; 575 } 576 newsz = sz >> increment_size << increment_size; 577 578 if (sz != newsz) { 579 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 580 "MB to match machine restrictions. Consider updating " 581 "the guest definition.\n", (uint64_t) (sz / MiB), 582 (uint64_t) (newsz / MiB)); 583 } 584 return newsz; 585 } 586 587 static void ccw_machine_class_init(ObjectClass *oc, void *data) 588 { 589 MachineClass *mc = MACHINE_CLASS(oc); 590 NMIClass *nc = NMI_CLASS(oc); 591 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 592 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 593 594 s390mc->ri_allowed = true; 595 s390mc->cpu_model_allowed = true; 596 s390mc->css_migration_enabled = true; 597 s390mc->hpage_1m_allowed = true; 598 mc->init = ccw_init; 599 mc->reset = s390_machine_reset; 600 mc->block_default_type = IF_VIRTIO; 601 mc->no_cdrom = 1; 602 mc->no_floppy = 1; 603 mc->no_parallel = 1; 604 mc->no_sdcard = 1; 605 mc->max_cpus = S390_MAX_CPUS; 606 mc->has_hotpluggable_cpus = true; 607 assert(!mc->get_hotplug_handler); 608 mc->get_hotplug_handler = s390_get_hotplug_handler; 609 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 610 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 611 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 612 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 613 hc->plug = s390_machine_device_plug; 614 hc->unplug_request = s390_machine_device_unplug_request; 615 nc->nmi_monitor_handler = s390_nmi; 616 mc->default_ram_id = "s390.ram"; 617 } 618 619 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 620 { 621 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 622 623 return ms->aes_key_wrap; 624 } 625 626 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 627 Error **errp) 628 { 629 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 630 631 ms->aes_key_wrap = value; 632 } 633 634 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 635 { 636 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 637 638 return ms->dea_key_wrap; 639 } 640 641 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 642 Error **errp) 643 { 644 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 645 646 ms->dea_key_wrap = value; 647 } 648 649 static S390CcwMachineClass *current_mc; 650 651 /* 652 * Get the class of the s390-ccw-virtio machine that is currently in use. 653 * Note: libvirt is using the "none" machine to probe for the features of the 654 * host CPU, so in case this is called with the "none" machine, the function 655 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 656 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 657 * below return the correct default value for the "none" machine. 658 * 659 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 660 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 661 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 662 * CPU initialization and s390_has_feat() later should be sufficient. 663 */ 664 static S390CcwMachineClass *get_machine_class(void) 665 { 666 if (unlikely(!current_mc)) { 667 /* 668 * No s390 ccw machine was instantiated, we are likely to 669 * be called for the 'none' machine. The properties will 670 * have their after-initialization values. 671 */ 672 current_mc = S390_CCW_MACHINE_CLASS( 673 object_class_by_name(TYPE_S390_CCW_MACHINE)); 674 } 675 return current_mc; 676 } 677 678 bool ri_allowed(void) 679 { 680 return get_machine_class()->ri_allowed; 681 } 682 683 bool cpu_model_allowed(void) 684 { 685 return get_machine_class()->cpu_model_allowed; 686 } 687 688 bool hpage_1m_allowed(void) 689 { 690 return get_machine_class()->hpage_1m_allowed; 691 } 692 693 static char *machine_get_loadparm(Object *obj, Error **errp) 694 { 695 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 696 697 /* make a NUL-terminated string */ 698 return g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 699 } 700 701 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 702 { 703 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 704 int i; 705 706 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 707 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 708 709 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 710 (c == ' ')) { 711 ms->loadparm[i] = c; 712 } else { 713 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 714 c, c); 715 return; 716 } 717 } 718 719 for (; i < sizeof(ms->loadparm); i++) { 720 ms->loadparm[i] = ' '; /* pad right with spaces */ 721 } 722 } 723 static inline void s390_machine_initfn(Object *obj) 724 { 725 object_property_add_bool(obj, "aes-key-wrap", 726 machine_get_aes_key_wrap, 727 machine_set_aes_key_wrap); 728 object_property_set_description(obj, "aes-key-wrap", 729 "enable/disable AES key wrapping using the CPACF wrapping key"); 730 object_property_set_bool(obj, "aes-key-wrap", true, NULL); 731 732 object_property_add_bool(obj, "dea-key-wrap", 733 machine_get_dea_key_wrap, 734 machine_set_dea_key_wrap); 735 object_property_set_description(obj, "dea-key-wrap", 736 "enable/disable DEA key wrapping using the CPACF wrapping key"); 737 object_property_set_bool(obj, "dea-key-wrap", true, NULL); 738 object_property_add_str(obj, "loadparm", 739 machine_get_loadparm, machine_set_loadparm); 740 object_property_set_description(obj, "loadparm", 741 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 742 " to upper case) to pass to machine loader, boot manager," 743 " and guest kernel"); 744 } 745 746 static const TypeInfo ccw_machine_info = { 747 .name = TYPE_S390_CCW_MACHINE, 748 .parent = TYPE_MACHINE, 749 .abstract = true, 750 .instance_size = sizeof(S390CcwMachineState), 751 .instance_init = s390_machine_initfn, 752 .class_size = sizeof(S390CcwMachineClass), 753 .class_init = ccw_machine_class_init, 754 .interfaces = (InterfaceInfo[]) { 755 { TYPE_NMI }, 756 { TYPE_HOTPLUG_HANDLER}, 757 { } 758 }, 759 }; 760 761 bool css_migration_enabled(void) 762 { 763 return get_machine_class()->css_migration_enabled; 764 } 765 766 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 767 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 768 void *data) \ 769 { \ 770 MachineClass *mc = MACHINE_CLASS(oc); \ 771 ccw_machine_##suffix##_class_options(mc); \ 772 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \ 773 if (latest) { \ 774 mc->alias = "s390-ccw-virtio"; \ 775 mc->is_default = true; \ 776 } \ 777 } \ 778 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 779 { \ 780 MachineState *machine = MACHINE(obj); \ 781 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 782 ccw_machine_##suffix##_instance_options(machine); \ 783 } \ 784 static const TypeInfo ccw_machine_##suffix##_info = { \ 785 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 786 .parent = TYPE_S390_CCW_MACHINE, \ 787 .class_init = ccw_machine_##suffix##_class_init, \ 788 .instance_init = ccw_machine_##suffix##_instance_init, \ 789 }; \ 790 static void ccw_machine_register_##suffix(void) \ 791 { \ 792 type_register_static(&ccw_machine_##suffix##_info); \ 793 } \ 794 type_init(ccw_machine_register_##suffix) 795 796 static void ccw_machine_6_1_instance_options(MachineState *machine) 797 { 798 } 799 800 static void ccw_machine_6_1_class_options(MachineClass *mc) 801 { 802 } 803 DEFINE_CCW_MACHINE(6_1, "6.1", true); 804 805 static void ccw_machine_6_0_instance_options(MachineState *machine) 806 { 807 ccw_machine_6_1_instance_options(machine); 808 } 809 810 static void ccw_machine_6_0_class_options(MachineClass *mc) 811 { 812 ccw_machine_6_1_class_options(mc); 813 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 814 } 815 DEFINE_CCW_MACHINE(6_0, "6.0", false); 816 817 static void ccw_machine_5_2_instance_options(MachineState *machine) 818 { 819 ccw_machine_6_0_instance_options(machine); 820 } 821 822 static void ccw_machine_5_2_class_options(MachineClass *mc) 823 { 824 ccw_machine_6_0_class_options(mc); 825 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 826 } 827 DEFINE_CCW_MACHINE(5_2, "5.2", false); 828 829 static void ccw_machine_5_1_instance_options(MachineState *machine) 830 { 831 ccw_machine_5_2_instance_options(machine); 832 } 833 834 static void ccw_machine_5_1_class_options(MachineClass *mc) 835 { 836 ccw_machine_5_2_class_options(mc); 837 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 838 } 839 DEFINE_CCW_MACHINE(5_1, "5.1", false); 840 841 static void ccw_machine_5_0_instance_options(MachineState *machine) 842 { 843 ccw_machine_5_1_instance_options(machine); 844 } 845 846 static void ccw_machine_5_0_class_options(MachineClass *mc) 847 { 848 ccw_machine_5_1_class_options(mc); 849 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 850 } 851 DEFINE_CCW_MACHINE(5_0, "5.0", false); 852 853 static void ccw_machine_4_2_instance_options(MachineState *machine) 854 { 855 ccw_machine_5_0_instance_options(machine); 856 } 857 858 static void ccw_machine_4_2_class_options(MachineClass *mc) 859 { 860 ccw_machine_5_0_class_options(mc); 861 mc->fixup_ram_size = s390_fixup_ram_size; 862 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 863 } 864 DEFINE_CCW_MACHINE(4_2, "4.2", false); 865 866 static void ccw_machine_4_1_instance_options(MachineState *machine) 867 { 868 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 869 ccw_machine_4_2_instance_options(machine); 870 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 871 } 872 873 static void ccw_machine_4_1_class_options(MachineClass *mc) 874 { 875 ccw_machine_4_2_class_options(mc); 876 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 877 } 878 DEFINE_CCW_MACHINE(4_1, "4.1", false); 879 880 static void ccw_machine_4_0_instance_options(MachineState *machine) 881 { 882 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 883 ccw_machine_4_1_instance_options(machine); 884 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 885 } 886 887 static void ccw_machine_4_0_class_options(MachineClass *mc) 888 { 889 ccw_machine_4_1_class_options(mc); 890 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 891 } 892 DEFINE_CCW_MACHINE(4_0, "4.0", false); 893 894 static void ccw_machine_3_1_instance_options(MachineState *machine) 895 { 896 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 897 ccw_machine_4_0_instance_options(machine); 898 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 899 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 900 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 901 } 902 903 static void ccw_machine_3_1_class_options(MachineClass *mc) 904 { 905 ccw_machine_4_0_class_options(mc); 906 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 907 } 908 DEFINE_CCW_MACHINE(3_1, "3.1", false); 909 910 static void ccw_machine_3_0_instance_options(MachineState *machine) 911 { 912 ccw_machine_3_1_instance_options(machine); 913 } 914 915 static void ccw_machine_3_0_class_options(MachineClass *mc) 916 { 917 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 918 919 s390mc->hpage_1m_allowed = false; 920 ccw_machine_3_1_class_options(mc); 921 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 922 } 923 DEFINE_CCW_MACHINE(3_0, "3.0", false); 924 925 static void ccw_machine_2_12_instance_options(MachineState *machine) 926 { 927 ccw_machine_3_0_instance_options(machine); 928 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 929 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 930 } 931 932 static void ccw_machine_2_12_class_options(MachineClass *mc) 933 { 934 ccw_machine_3_0_class_options(mc); 935 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 936 } 937 DEFINE_CCW_MACHINE(2_12, "2.12", false); 938 939 static void ccw_machine_2_11_instance_options(MachineState *machine) 940 { 941 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 942 ccw_machine_2_12_instance_options(machine); 943 944 /* before 2.12 we emulated the very first z900 */ 945 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 946 } 947 948 static void ccw_machine_2_11_class_options(MachineClass *mc) 949 { 950 static GlobalProperty compat[] = { 951 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 952 }; 953 954 ccw_machine_2_12_class_options(mc); 955 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 956 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 957 } 958 DEFINE_CCW_MACHINE(2_11, "2.11", false); 959 960 static void ccw_machine_2_10_instance_options(MachineState *machine) 961 { 962 ccw_machine_2_11_instance_options(machine); 963 } 964 965 static void ccw_machine_2_10_class_options(MachineClass *mc) 966 { 967 ccw_machine_2_11_class_options(mc); 968 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 969 } 970 DEFINE_CCW_MACHINE(2_10, "2.10", false); 971 972 static void ccw_machine_2_9_instance_options(MachineState *machine) 973 { 974 ccw_machine_2_10_instance_options(machine); 975 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 976 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 977 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 978 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 979 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 980 } 981 982 static void ccw_machine_2_9_class_options(MachineClass *mc) 983 { 984 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 985 static GlobalProperty compat[] = { 986 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 987 }; 988 989 ccw_machine_2_10_class_options(mc); 990 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 991 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 992 s390mc->css_migration_enabled = false; 993 } 994 DEFINE_CCW_MACHINE(2_9, "2.9", false); 995 996 static void ccw_machine_2_8_instance_options(MachineState *machine) 997 { 998 ccw_machine_2_9_instance_options(machine); 999 } 1000 1001 static void ccw_machine_2_8_class_options(MachineClass *mc) 1002 { 1003 static GlobalProperty compat[] = { 1004 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 1005 }; 1006 1007 ccw_machine_2_9_class_options(mc); 1008 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 1009 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1010 } 1011 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1012 1013 static void ccw_machine_2_7_instance_options(MachineState *machine) 1014 { 1015 ccw_machine_2_8_instance_options(machine); 1016 } 1017 1018 static void ccw_machine_2_7_class_options(MachineClass *mc) 1019 { 1020 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1021 1022 s390mc->cpu_model_allowed = false; 1023 ccw_machine_2_8_class_options(mc); 1024 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1025 } 1026 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1027 1028 static void ccw_machine_2_6_instance_options(MachineState *machine) 1029 { 1030 ccw_machine_2_7_instance_options(machine); 1031 } 1032 1033 static void ccw_machine_2_6_class_options(MachineClass *mc) 1034 { 1035 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1036 static GlobalProperty compat[] = { 1037 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1038 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1039 }; 1040 1041 s390mc->ri_allowed = false; 1042 ccw_machine_2_7_class_options(mc); 1043 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1044 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1045 } 1046 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1047 1048 static void ccw_machine_2_5_instance_options(MachineState *machine) 1049 { 1050 ccw_machine_2_6_instance_options(machine); 1051 } 1052 1053 static void ccw_machine_2_5_class_options(MachineClass *mc) 1054 { 1055 ccw_machine_2_6_class_options(mc); 1056 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1057 } 1058 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1059 1060 static void ccw_machine_2_4_instance_options(MachineState *machine) 1061 { 1062 ccw_machine_2_5_instance_options(machine); 1063 } 1064 1065 static void ccw_machine_2_4_class_options(MachineClass *mc) 1066 { 1067 static GlobalProperty compat[] = { 1068 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1069 { "virtio-blk-ccw", "max_revision", "0", }, 1070 { "virtio-balloon-ccw", "max_revision", "0", }, 1071 { "virtio-serial-ccw", "max_revision", "0", }, 1072 { "virtio-9p-ccw", "max_revision", "0", }, 1073 { "virtio-rng-ccw", "max_revision", "0", }, 1074 { "virtio-net-ccw", "max_revision", "0", }, 1075 { "virtio-scsi-ccw", "max_revision", "0", }, 1076 { "vhost-scsi-ccw", "max_revision", "0", }, 1077 }; 1078 1079 ccw_machine_2_5_class_options(mc); 1080 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1081 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1082 } 1083 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1084 1085 static void ccw_machine_register_types(void) 1086 { 1087 type_register_static(&ccw_machine_info); 1088 } 1089 1090 type_init(ccw_machine_register_types) 1091