1 /* 2 * virtio ccw machine 3 * 4 * Copyright 2012, 2020 IBM Corp. 5 * Copyright (c) 2009 Alexander Graf <agraf@suse.de> 6 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 7 * Janosch Frank <frankja@linux.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or (at 10 * your option) any later version. See the COPYING file in the top-level 11 * directory. 12 */ 13 14 #include "qemu/osdep.h" 15 #include "qapi/error.h" 16 #include "cpu.h" 17 #include "hw/boards.h" 18 #include "exec/address-spaces.h" 19 #include "exec/ram_addr.h" 20 #include "hw/boards.h" 21 #include "hw/s390x/s390-virtio-hcall.h" 22 #include "hw/s390x/sclp.h" 23 #include "hw/s390x/s390_flic.h" 24 #include "hw/s390x/ioinst.h" 25 #include "hw/s390x/css.h" 26 #include "virtio-ccw.h" 27 #include "qemu/config-file.h" 28 #include "qemu/ctype.h" 29 #include "qemu/error-report.h" 30 #include "qemu/option.h" 31 #include "qemu/qemu-print.h" 32 #include "hw/s390x/s390-pci-bus.h" 33 #include "sysemu/reset.h" 34 #include "hw/s390x/storage-keys.h" 35 #include "hw/s390x/storage-attributes.h" 36 #include "hw/s390x/event-facility.h" 37 #include "ipl.h" 38 #include "hw/s390x/s390-virtio-ccw.h" 39 #include "hw/s390x/css-bridge.h" 40 #include "hw/s390x/ap-bridge.h" 41 #include "migration/register.h" 42 #include "cpu_models.h" 43 #include "hw/nmi.h" 44 #include "hw/qdev-properties.h" 45 #include "hw/s390x/tod.h" 46 #include "sysemu/sysemu.h" 47 #include "hw/s390x/pv.h" 48 #include "migration/blocker.h" 49 50 static Error *pv_mig_blocker; 51 52 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 53 { 54 static MachineState *ms; 55 56 if (!ms) { 57 ms = MACHINE(qdev_get_machine()); 58 g_assert(ms->possible_cpus); 59 } 60 61 /* CPU address corresponds to the core_id and the index */ 62 if (cpu_addr >= ms->possible_cpus->len) { 63 return NULL; 64 } 65 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 66 } 67 68 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 69 Error **errp) 70 { 71 S390CPU *cpu = S390_CPU(object_new(typename)); 72 S390CPU *ret = NULL; 73 74 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) { 75 goto out; 76 } 77 if (!qdev_realize(DEVICE(cpu), NULL, errp)) { 78 goto out; 79 } 80 ret = cpu; 81 82 out: 83 object_unref(OBJECT(cpu)); 84 return ret; 85 } 86 87 static void s390_init_cpus(MachineState *machine) 88 { 89 MachineClass *mc = MACHINE_GET_CLASS(machine); 90 int i; 91 92 /* initialize possible_cpus */ 93 mc->possible_cpu_arch_ids(machine); 94 95 for (i = 0; i < machine->smp.cpus; i++) { 96 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 97 } 98 } 99 100 static const char *const reset_dev_types[] = { 101 TYPE_VIRTUAL_CSS_BRIDGE, 102 "s390-sclp-event-facility", 103 "s390-flic", 104 "diag288", 105 TYPE_S390_PCI_HOST_BRIDGE, 106 }; 107 108 static void subsystem_reset(void) 109 { 110 DeviceState *dev; 111 int i; 112 113 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 114 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 115 if (dev) { 116 qdev_reset_all(dev); 117 } 118 } 119 } 120 121 static int virtio_ccw_hcall_notify(const uint64_t *args) 122 { 123 uint64_t subch_id = args[0]; 124 uint64_t queue = args[1]; 125 SubchDev *sch; 126 int cssid, ssid, schid, m; 127 128 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 129 return -EINVAL; 130 } 131 sch = css_find_subch(m, cssid, ssid, schid); 132 if (!sch || !css_subch_visible(sch)) { 133 return -EINVAL; 134 } 135 if (queue >= VIRTIO_QUEUE_MAX) { 136 return -EINVAL; 137 } 138 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 139 return 0; 140 141 } 142 143 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 144 { 145 uint64_t mem = args[0]; 146 MachineState *ms = MACHINE(qdev_get_machine()); 147 148 if (mem < ms->ram_size) { 149 /* Early printk */ 150 return 0; 151 } 152 return -EINVAL; 153 } 154 155 static void virtio_ccw_register_hcalls(void) 156 { 157 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 158 virtio_ccw_hcall_notify); 159 /* Tolerate early printk. */ 160 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 161 virtio_ccw_hcall_early_printk); 162 } 163 164 static void s390_memory_init(MemoryRegion *ram) 165 { 166 MemoryRegion *sysmem = get_system_memory(); 167 168 /* allocate RAM for core */ 169 memory_region_add_subregion(sysmem, 0, ram); 170 171 /* 172 * Configure the maximum page size. As no memory devices were created 173 * yet, this is the page size of initial memory only. 174 */ 175 s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal); 176 /* Initialize storage key device */ 177 s390_skeys_init(); 178 /* Initialize storage attributes device */ 179 s390_stattrib_init(); 180 } 181 182 static void s390_init_ipl_dev(const char *kernel_filename, 183 const char *kernel_cmdline, 184 const char *initrd_filename, const char *firmware, 185 const char *netboot_fw, bool enforce_bios) 186 { 187 Object *new = object_new(TYPE_S390_IPL); 188 DeviceState *dev = DEVICE(new); 189 char *netboot_fw_prop; 190 191 if (kernel_filename) { 192 qdev_prop_set_string(dev, "kernel", kernel_filename); 193 } 194 if (initrd_filename) { 195 qdev_prop_set_string(dev, "initrd", initrd_filename); 196 } 197 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 198 qdev_prop_set_string(dev, "firmware", firmware); 199 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 200 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 201 if (!strlen(netboot_fw_prop)) { 202 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 203 } 204 g_free(netboot_fw_prop); 205 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 206 new); 207 object_unref(new); 208 qdev_realize(dev, NULL, &error_fatal); 209 } 210 211 static void s390_create_virtio_net(BusState *bus, const char *name) 212 { 213 int i; 214 215 for (i = 0; i < nb_nics; i++) { 216 NICInfo *nd = &nd_table[i]; 217 DeviceState *dev; 218 219 if (!nd->model) { 220 nd->model = g_strdup("virtio"); 221 } 222 223 qemu_check_nic_model(nd, "virtio"); 224 225 dev = qdev_new(name); 226 qdev_set_nic_properties(dev, nd); 227 qdev_realize_and_unref(dev, bus, &error_fatal); 228 } 229 } 230 231 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 232 { 233 DeviceState *dev; 234 235 dev = qdev_new(type); 236 qdev_prop_set_chr(dev, "chardev", chardev); 237 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 238 } 239 240 static void ccw_init(MachineState *machine) 241 { 242 int ret; 243 VirtualCssBus *css_bus; 244 DeviceState *dev; 245 246 s390_sclp_init(); 247 /* init memory + setup max page size. Required for the CPU model */ 248 s390_memory_init(machine->ram); 249 250 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 251 s390_init_cpus(machine); 252 253 /* Need CPU model to be determined before we can set up PV */ 254 s390_pv_init(machine->cgs, &error_fatal); 255 256 s390_flic_init(); 257 258 /* init the SIGP facility */ 259 s390_init_sigp(); 260 261 /* create AP bridge and bus(es) */ 262 s390_init_ap(); 263 264 /* get a BUS */ 265 css_bus = virtual_css_bus_init(); 266 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 267 machine->initrd_filename, 268 machine->firmware ?: "s390-ccw.img", 269 "s390-netboot.img", true); 270 271 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 272 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 273 OBJECT(dev)); 274 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 275 276 /* register hypercalls */ 277 virtio_ccw_register_hcalls(); 278 279 s390_enable_css_support(s390_cpu_addr2state(0)); 280 281 ret = css_create_css_image(VIRTUAL_CSSID, true); 282 283 assert(ret == 0); 284 if (css_migration_enabled()) { 285 css_register_vmstate(); 286 } 287 288 /* Create VirtIO network adapters */ 289 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 290 291 /* init consoles */ 292 if (serial_hd(0)) { 293 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 294 } 295 if (serial_hd(1)) { 296 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 297 } 298 299 /* init the TOD clock */ 300 s390_init_tod(); 301 } 302 303 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 304 DeviceState *dev, Error **errp) 305 { 306 MachineState *ms = MACHINE(hotplug_dev); 307 S390CPU *cpu = S390_CPU(dev); 308 309 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 310 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 311 312 if (dev->hotplugged) { 313 raise_irq_cpu_hotplug(); 314 } 315 } 316 317 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 318 { 319 S390CPU *cpu = S390_CPU(cs); 320 321 s390_ipl_prepare_cpu(cpu); 322 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 323 } 324 325 static void s390_machine_unprotect(S390CcwMachineState *ms) 326 { 327 s390_pv_vm_disable(); 328 ms->pv = false; 329 migrate_del_blocker(pv_mig_blocker); 330 error_free_or_abort(&pv_mig_blocker); 331 ram_block_discard_disable(false); 332 } 333 334 static int s390_machine_protect(S390CcwMachineState *ms) 335 { 336 Error *local_err = NULL; 337 int rc; 338 339 /* 340 * Discarding of memory in RAM blocks does not work as expected with 341 * protected VMs. Sharing and unsharing pages would be required. Disable 342 * it for now, until until we have a solution to make at least Linux 343 * guests either support it (e.g., virtio-balloon) or fail gracefully. 344 */ 345 rc = ram_block_discard_disable(true); 346 if (rc) { 347 error_report("protected VMs: cannot disable RAM discard"); 348 return rc; 349 } 350 351 error_setg(&pv_mig_blocker, 352 "protected VMs are currently not migrateable."); 353 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 354 if (rc) { 355 ram_block_discard_disable(false); 356 error_report_err(local_err); 357 error_free_or_abort(&pv_mig_blocker); 358 return rc; 359 } 360 361 /* Create SE VM */ 362 rc = s390_pv_vm_enable(); 363 if (rc) { 364 ram_block_discard_disable(false); 365 migrate_del_blocker(pv_mig_blocker); 366 error_free_or_abort(&pv_mig_blocker); 367 return rc; 368 } 369 370 ms->pv = true; 371 372 /* Set SE header and unpack */ 373 rc = s390_ipl_prepare_pv_header(); 374 if (rc) { 375 goto out_err; 376 } 377 378 /* Decrypt image */ 379 rc = s390_ipl_pv_unpack(); 380 if (rc) { 381 goto out_err; 382 } 383 384 /* Verify integrity */ 385 rc = s390_pv_verify(); 386 if (rc) { 387 goto out_err; 388 } 389 return rc; 390 391 out_err: 392 s390_machine_unprotect(ms); 393 return rc; 394 } 395 396 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 397 { 398 CPUState *cs; 399 400 if (!s390_is_pv()) { 401 return; 402 } 403 /* Unsharing requires all cpus to be stopped */ 404 CPU_FOREACH(cs) { 405 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 406 } 407 s390_pv_unshare(); 408 s390_pv_prep_reset(); 409 } 410 411 static void s390_machine_reset(MachineState *machine) 412 { 413 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 414 enum s390_reset reset_type; 415 CPUState *cs, *t; 416 S390CPU *cpu; 417 418 /* get the reset parameters, reset them once done */ 419 s390_ipl_get_reset_request(&cs, &reset_type); 420 421 /* all CPUs are paused and synchronized at this point */ 422 s390_cmma_reset(); 423 424 cpu = S390_CPU(cs); 425 426 switch (reset_type) { 427 case S390_RESET_EXTERNAL: 428 case S390_RESET_REIPL: 429 if (s390_is_pv()) { 430 s390_machine_unprotect(ms); 431 } 432 433 qemu_devices_reset(); 434 s390_crypto_reset(); 435 436 /* configure and start the ipl CPU only */ 437 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 438 break; 439 case S390_RESET_MODIFIED_CLEAR: 440 /* 441 * Susbsystem reset needs to be done before we unshare memory 442 * and lose access to VIRTIO structures in guest memory. 443 */ 444 subsystem_reset(); 445 s390_crypto_reset(); 446 s390_pv_prepare_reset(ms); 447 CPU_FOREACH(t) { 448 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 449 } 450 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 451 break; 452 case S390_RESET_LOAD_NORMAL: 453 /* 454 * Susbsystem reset needs to be done before we unshare memory 455 * and lose access to VIRTIO structures in guest memory. 456 */ 457 subsystem_reset(); 458 s390_pv_prepare_reset(ms); 459 CPU_FOREACH(t) { 460 if (t == cs) { 461 continue; 462 } 463 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 464 } 465 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 466 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 467 break; 468 case S390_RESET_PV: /* Subcode 10 */ 469 subsystem_reset(); 470 s390_crypto_reset(); 471 472 CPU_FOREACH(t) { 473 if (t == cs) { 474 continue; 475 } 476 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 477 } 478 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 479 480 if (s390_machine_protect(ms)) { 481 s390_pv_inject_reset_error(cs); 482 /* 483 * Continue after the diag308 so the guest knows something 484 * went wrong. 485 */ 486 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 487 return; 488 } 489 490 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 491 break; 492 default: 493 g_assert_not_reached(); 494 } 495 496 CPU_FOREACH(t) { 497 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 498 } 499 s390_ipl_clear_reset_request(); 500 } 501 502 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 503 DeviceState *dev, Error **errp) 504 { 505 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 506 s390_cpu_plug(hotplug_dev, dev, errp); 507 } 508 } 509 510 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 511 DeviceState *dev, Error **errp) 512 { 513 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 514 error_setg(errp, "CPU hot unplug not supported on this machine"); 515 return; 516 } 517 } 518 519 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 520 unsigned cpu_index) 521 { 522 MachineClass *mc = MACHINE_GET_CLASS(ms); 523 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 524 525 assert(cpu_index < possible_cpus->len); 526 return possible_cpus->cpus[cpu_index].props; 527 } 528 529 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 530 { 531 int i; 532 unsigned int max_cpus = ms->smp.max_cpus; 533 534 if (ms->possible_cpus) { 535 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 536 return ms->possible_cpus; 537 } 538 539 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 540 sizeof(CPUArchId) * max_cpus); 541 ms->possible_cpus->len = max_cpus; 542 for (i = 0; i < ms->possible_cpus->len; i++) { 543 ms->possible_cpus->cpus[i].type = ms->cpu_type; 544 ms->possible_cpus->cpus[i].vcpus_count = 1; 545 ms->possible_cpus->cpus[i].arch_id = i; 546 ms->possible_cpus->cpus[i].props.has_core_id = true; 547 ms->possible_cpus->cpus[i].props.core_id = i; 548 } 549 550 return ms->possible_cpus; 551 } 552 553 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 554 DeviceState *dev) 555 { 556 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 557 return HOTPLUG_HANDLER(machine); 558 } 559 return NULL; 560 } 561 562 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 563 { 564 CPUState *cs = qemu_get_cpu(cpu_index); 565 566 s390_cpu_restart(S390_CPU(cs)); 567 } 568 569 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 570 { 571 /* same logic as in sclp.c */ 572 int increment_size = 20; 573 ram_addr_t newsz; 574 575 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 576 increment_size++; 577 } 578 newsz = sz >> increment_size << increment_size; 579 580 if (sz != newsz) { 581 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 582 "MB to match machine restrictions. Consider updating " 583 "the guest definition.\n", (uint64_t) (sz / MiB), 584 (uint64_t) (newsz / MiB)); 585 } 586 return newsz; 587 } 588 589 static void ccw_machine_class_init(ObjectClass *oc, void *data) 590 { 591 MachineClass *mc = MACHINE_CLASS(oc); 592 NMIClass *nc = NMI_CLASS(oc); 593 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 594 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 595 596 s390mc->ri_allowed = true; 597 s390mc->cpu_model_allowed = true; 598 s390mc->css_migration_enabled = true; 599 s390mc->hpage_1m_allowed = true; 600 mc->init = ccw_init; 601 mc->reset = s390_machine_reset; 602 mc->block_default_type = IF_VIRTIO; 603 mc->no_cdrom = 1; 604 mc->no_floppy = 1; 605 mc->no_parallel = 1; 606 mc->no_sdcard = 1; 607 mc->max_cpus = S390_MAX_CPUS; 608 mc->has_hotpluggable_cpus = true; 609 assert(!mc->get_hotplug_handler); 610 mc->get_hotplug_handler = s390_get_hotplug_handler; 611 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 612 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 613 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 614 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 615 hc->plug = s390_machine_device_plug; 616 hc->unplug_request = s390_machine_device_unplug_request; 617 nc->nmi_monitor_handler = s390_nmi; 618 mc->default_ram_id = "s390.ram"; 619 } 620 621 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 622 { 623 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 624 625 return ms->aes_key_wrap; 626 } 627 628 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 629 Error **errp) 630 { 631 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 632 633 ms->aes_key_wrap = value; 634 } 635 636 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 637 { 638 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 639 640 return ms->dea_key_wrap; 641 } 642 643 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 644 Error **errp) 645 { 646 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 647 648 ms->dea_key_wrap = value; 649 } 650 651 static S390CcwMachineClass *current_mc; 652 653 /* 654 * Get the class of the s390-ccw-virtio machine that is currently in use. 655 * Note: libvirt is using the "none" machine to probe for the features of the 656 * host CPU, so in case this is called with the "none" machine, the function 657 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 658 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 659 * below return the correct default value for the "none" machine. 660 * 661 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 662 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 663 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 664 * CPU initialization and s390_has_feat() later should be sufficient. 665 */ 666 static S390CcwMachineClass *get_machine_class(void) 667 { 668 if (unlikely(!current_mc)) { 669 /* 670 * No s390 ccw machine was instantiated, we are likely to 671 * be called for the 'none' machine. The properties will 672 * have their after-initialization values. 673 */ 674 current_mc = S390_CCW_MACHINE_CLASS( 675 object_class_by_name(TYPE_S390_CCW_MACHINE)); 676 } 677 return current_mc; 678 } 679 680 bool ri_allowed(void) 681 { 682 return get_machine_class()->ri_allowed; 683 } 684 685 bool cpu_model_allowed(void) 686 { 687 return get_machine_class()->cpu_model_allowed; 688 } 689 690 bool hpage_1m_allowed(void) 691 { 692 return get_machine_class()->hpage_1m_allowed; 693 } 694 695 static char *machine_get_loadparm(Object *obj, Error **errp) 696 { 697 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 698 699 /* make a NUL-terminated string */ 700 return g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 701 } 702 703 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 704 { 705 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 706 int i; 707 708 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 709 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 710 711 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 712 (c == ' ')) { 713 ms->loadparm[i] = c; 714 } else { 715 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 716 c, c); 717 return; 718 } 719 } 720 721 for (; i < sizeof(ms->loadparm); i++) { 722 ms->loadparm[i] = ' '; /* pad right with spaces */ 723 } 724 } 725 static inline void s390_machine_initfn(Object *obj) 726 { 727 object_property_add_bool(obj, "aes-key-wrap", 728 machine_get_aes_key_wrap, 729 machine_set_aes_key_wrap); 730 object_property_set_description(obj, "aes-key-wrap", 731 "enable/disable AES key wrapping using the CPACF wrapping key"); 732 object_property_set_bool(obj, "aes-key-wrap", true, NULL); 733 734 object_property_add_bool(obj, "dea-key-wrap", 735 machine_get_dea_key_wrap, 736 machine_set_dea_key_wrap); 737 object_property_set_description(obj, "dea-key-wrap", 738 "enable/disable DEA key wrapping using the CPACF wrapping key"); 739 object_property_set_bool(obj, "dea-key-wrap", true, NULL); 740 object_property_add_str(obj, "loadparm", 741 machine_get_loadparm, machine_set_loadparm); 742 object_property_set_description(obj, "loadparm", 743 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 744 " to upper case) to pass to machine loader, boot manager," 745 " and guest kernel"); 746 } 747 748 static const TypeInfo ccw_machine_info = { 749 .name = TYPE_S390_CCW_MACHINE, 750 .parent = TYPE_MACHINE, 751 .abstract = true, 752 .instance_size = sizeof(S390CcwMachineState), 753 .instance_init = s390_machine_initfn, 754 .class_size = sizeof(S390CcwMachineClass), 755 .class_init = ccw_machine_class_init, 756 .interfaces = (InterfaceInfo[]) { 757 { TYPE_NMI }, 758 { TYPE_HOTPLUG_HANDLER}, 759 { } 760 }, 761 }; 762 763 bool css_migration_enabled(void) 764 { 765 return get_machine_class()->css_migration_enabled; 766 } 767 768 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 769 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 770 void *data) \ 771 { \ 772 MachineClass *mc = MACHINE_CLASS(oc); \ 773 ccw_machine_##suffix##_class_options(mc); \ 774 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \ 775 if (latest) { \ 776 mc->alias = "s390-ccw-virtio"; \ 777 mc->is_default = true; \ 778 } \ 779 } \ 780 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 781 { \ 782 MachineState *machine = MACHINE(obj); \ 783 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 784 ccw_machine_##suffix##_instance_options(machine); \ 785 } \ 786 static const TypeInfo ccw_machine_##suffix##_info = { \ 787 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 788 .parent = TYPE_S390_CCW_MACHINE, \ 789 .class_init = ccw_machine_##suffix##_class_init, \ 790 .instance_init = ccw_machine_##suffix##_instance_init, \ 791 }; \ 792 static void ccw_machine_register_##suffix(void) \ 793 { \ 794 type_register_static(&ccw_machine_##suffix##_info); \ 795 } \ 796 type_init(ccw_machine_register_##suffix) 797 798 static void ccw_machine_6_0_instance_options(MachineState *machine) 799 { 800 } 801 802 static void ccw_machine_6_0_class_options(MachineClass *mc) 803 { 804 } 805 DEFINE_CCW_MACHINE(6_0, "6.0", true); 806 807 static void ccw_machine_5_2_instance_options(MachineState *machine) 808 { 809 ccw_machine_6_0_instance_options(machine); 810 } 811 812 static void ccw_machine_5_2_class_options(MachineClass *mc) 813 { 814 ccw_machine_6_0_class_options(mc); 815 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 816 } 817 DEFINE_CCW_MACHINE(5_2, "5.2", false); 818 819 static void ccw_machine_5_1_instance_options(MachineState *machine) 820 { 821 ccw_machine_5_2_instance_options(machine); 822 } 823 824 static void ccw_machine_5_1_class_options(MachineClass *mc) 825 { 826 ccw_machine_5_2_class_options(mc); 827 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 828 } 829 DEFINE_CCW_MACHINE(5_1, "5.1", false); 830 831 static void ccw_machine_5_0_instance_options(MachineState *machine) 832 { 833 ccw_machine_5_1_instance_options(machine); 834 } 835 836 static void ccw_machine_5_0_class_options(MachineClass *mc) 837 { 838 ccw_machine_5_1_class_options(mc); 839 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 840 } 841 DEFINE_CCW_MACHINE(5_0, "5.0", false); 842 843 static void ccw_machine_4_2_instance_options(MachineState *machine) 844 { 845 ccw_machine_5_0_instance_options(machine); 846 } 847 848 static void ccw_machine_4_2_class_options(MachineClass *mc) 849 { 850 ccw_machine_5_0_class_options(mc); 851 mc->fixup_ram_size = s390_fixup_ram_size; 852 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 853 } 854 DEFINE_CCW_MACHINE(4_2, "4.2", false); 855 856 static void ccw_machine_4_1_instance_options(MachineState *machine) 857 { 858 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 859 ccw_machine_4_2_instance_options(machine); 860 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 861 } 862 863 static void ccw_machine_4_1_class_options(MachineClass *mc) 864 { 865 ccw_machine_4_2_class_options(mc); 866 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 867 } 868 DEFINE_CCW_MACHINE(4_1, "4.1", false); 869 870 static void ccw_machine_4_0_instance_options(MachineState *machine) 871 { 872 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 873 ccw_machine_4_1_instance_options(machine); 874 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 875 } 876 877 static void ccw_machine_4_0_class_options(MachineClass *mc) 878 { 879 ccw_machine_4_1_class_options(mc); 880 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 881 } 882 DEFINE_CCW_MACHINE(4_0, "4.0", false); 883 884 static void ccw_machine_3_1_instance_options(MachineState *machine) 885 { 886 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 887 ccw_machine_4_0_instance_options(machine); 888 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 889 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 890 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 891 } 892 893 static void ccw_machine_3_1_class_options(MachineClass *mc) 894 { 895 ccw_machine_4_0_class_options(mc); 896 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 897 } 898 DEFINE_CCW_MACHINE(3_1, "3.1", false); 899 900 static void ccw_machine_3_0_instance_options(MachineState *machine) 901 { 902 ccw_machine_3_1_instance_options(machine); 903 } 904 905 static void ccw_machine_3_0_class_options(MachineClass *mc) 906 { 907 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 908 909 s390mc->hpage_1m_allowed = false; 910 ccw_machine_3_1_class_options(mc); 911 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 912 } 913 DEFINE_CCW_MACHINE(3_0, "3.0", false); 914 915 static void ccw_machine_2_12_instance_options(MachineState *machine) 916 { 917 ccw_machine_3_0_instance_options(machine); 918 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 919 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 920 } 921 922 static void ccw_machine_2_12_class_options(MachineClass *mc) 923 { 924 ccw_machine_3_0_class_options(mc); 925 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 926 } 927 DEFINE_CCW_MACHINE(2_12, "2.12", false); 928 929 static void ccw_machine_2_11_instance_options(MachineState *machine) 930 { 931 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 932 ccw_machine_2_12_instance_options(machine); 933 934 /* before 2.12 we emulated the very first z900 */ 935 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 936 } 937 938 static void ccw_machine_2_11_class_options(MachineClass *mc) 939 { 940 static GlobalProperty compat[] = { 941 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 942 }; 943 944 ccw_machine_2_12_class_options(mc); 945 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 946 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 947 } 948 DEFINE_CCW_MACHINE(2_11, "2.11", false); 949 950 static void ccw_machine_2_10_instance_options(MachineState *machine) 951 { 952 ccw_machine_2_11_instance_options(machine); 953 } 954 955 static void ccw_machine_2_10_class_options(MachineClass *mc) 956 { 957 ccw_machine_2_11_class_options(mc); 958 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 959 } 960 DEFINE_CCW_MACHINE(2_10, "2.10", false); 961 962 static void ccw_machine_2_9_instance_options(MachineState *machine) 963 { 964 ccw_machine_2_10_instance_options(machine); 965 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 966 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 967 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 968 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 969 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 970 } 971 972 static void ccw_machine_2_9_class_options(MachineClass *mc) 973 { 974 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 975 static GlobalProperty compat[] = { 976 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 977 }; 978 979 ccw_machine_2_10_class_options(mc); 980 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 981 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 982 s390mc->css_migration_enabled = false; 983 } 984 DEFINE_CCW_MACHINE(2_9, "2.9", false); 985 986 static void ccw_machine_2_8_instance_options(MachineState *machine) 987 { 988 ccw_machine_2_9_instance_options(machine); 989 } 990 991 static void ccw_machine_2_8_class_options(MachineClass *mc) 992 { 993 static GlobalProperty compat[] = { 994 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 995 }; 996 997 ccw_machine_2_9_class_options(mc); 998 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 999 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1000 } 1001 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1002 1003 static void ccw_machine_2_7_instance_options(MachineState *machine) 1004 { 1005 ccw_machine_2_8_instance_options(machine); 1006 } 1007 1008 static void ccw_machine_2_7_class_options(MachineClass *mc) 1009 { 1010 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1011 1012 s390mc->cpu_model_allowed = false; 1013 ccw_machine_2_8_class_options(mc); 1014 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1015 } 1016 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1017 1018 static void ccw_machine_2_6_instance_options(MachineState *machine) 1019 { 1020 ccw_machine_2_7_instance_options(machine); 1021 } 1022 1023 static void ccw_machine_2_6_class_options(MachineClass *mc) 1024 { 1025 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1026 static GlobalProperty compat[] = { 1027 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1028 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1029 }; 1030 1031 s390mc->ri_allowed = false; 1032 ccw_machine_2_7_class_options(mc); 1033 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1034 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1035 } 1036 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1037 1038 static void ccw_machine_2_5_instance_options(MachineState *machine) 1039 { 1040 ccw_machine_2_6_instance_options(machine); 1041 } 1042 1043 static void ccw_machine_2_5_class_options(MachineClass *mc) 1044 { 1045 ccw_machine_2_6_class_options(mc); 1046 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1047 } 1048 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1049 1050 static void ccw_machine_2_4_instance_options(MachineState *machine) 1051 { 1052 ccw_machine_2_5_instance_options(machine); 1053 } 1054 1055 static void ccw_machine_2_4_class_options(MachineClass *mc) 1056 { 1057 static GlobalProperty compat[] = { 1058 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1059 { "virtio-blk-ccw", "max_revision", "0", }, 1060 { "virtio-balloon-ccw", "max_revision", "0", }, 1061 { "virtio-serial-ccw", "max_revision", "0", }, 1062 { "virtio-9p-ccw", "max_revision", "0", }, 1063 { "virtio-rng-ccw", "max_revision", "0", }, 1064 { "virtio-net-ccw", "max_revision", "0", }, 1065 { "virtio-scsi-ccw", "max_revision", "0", }, 1066 { "vhost-scsi-ccw", "max_revision", "0", }, 1067 }; 1068 1069 ccw_machine_2_5_class_options(mc); 1070 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1071 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1072 } 1073 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1074 1075 static void ccw_machine_register_types(void) 1076 { 1077 type_register_static(&ccw_machine_info); 1078 } 1079 1080 type_init(ccw_machine_register_types) 1081