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 "exec/ram_addr.h" 17 #include "hw/s390x/s390-virtio-hcall.h" 18 #include "hw/s390x/sclp.h" 19 #include "hw/s390x/s390_flic.h" 20 #include "hw/s390x/ioinst.h" 21 #include "hw/s390x/css.h" 22 #include "virtio-ccw.h" 23 #include "qemu/config-file.h" 24 #include "qemu/ctype.h" 25 #include "qemu/error-report.h" 26 #include "qemu/option.h" 27 #include "qemu/qemu-print.h" 28 #include "qemu/units.h" 29 #include "hw/s390x/s390-pci-bus.h" 30 #include "sysemu/reset.h" 31 #include "hw/s390x/storage-keys.h" 32 #include "hw/s390x/storage-attributes.h" 33 #include "hw/s390x/event-facility.h" 34 #include "ipl.h" 35 #include "hw/s390x/s390-virtio-ccw.h" 36 #include "hw/s390x/css-bridge.h" 37 #include "hw/s390x/ap-bridge.h" 38 #include "migration/register.h" 39 #include "cpu_models.h" 40 #include "hw/nmi.h" 41 #include "hw/qdev-properties.h" 42 #include "hw/s390x/tod.h" 43 #include "sysemu/sysemu.h" 44 #include "hw/s390x/pv.h" 45 #include "migration/blocker.h" 46 47 static Error *pv_mig_blocker; 48 49 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 50 { 51 static MachineState *ms; 52 53 if (!ms) { 54 ms = MACHINE(qdev_get_machine()); 55 g_assert(ms->possible_cpus); 56 } 57 58 /* CPU address corresponds to the core_id and the index */ 59 if (cpu_addr >= ms->possible_cpus->len) { 60 return NULL; 61 } 62 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 63 } 64 65 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 66 Error **errp) 67 { 68 S390CPU *cpu = S390_CPU(object_new(typename)); 69 S390CPU *ret = NULL; 70 71 if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) { 72 goto out; 73 } 74 if (!qdev_realize(DEVICE(cpu), NULL, errp)) { 75 goto out; 76 } 77 ret = cpu; 78 79 out: 80 object_unref(OBJECT(cpu)); 81 return ret; 82 } 83 84 static void s390_init_cpus(MachineState *machine) 85 { 86 MachineClass *mc = MACHINE_GET_CLASS(machine); 87 int i; 88 89 /* initialize possible_cpus */ 90 mc->possible_cpu_arch_ids(machine); 91 92 for (i = 0; i < machine->smp.cpus; i++) { 93 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 94 } 95 } 96 97 static const char *const reset_dev_types[] = { 98 TYPE_VIRTUAL_CSS_BRIDGE, 99 "s390-sclp-event-facility", 100 "s390-flic", 101 "diag288", 102 TYPE_S390_PCI_HOST_BRIDGE, 103 }; 104 105 static void subsystem_reset(void) 106 { 107 DeviceState *dev; 108 int i; 109 110 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 111 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 112 if (dev) { 113 qdev_reset_all(dev); 114 } 115 } 116 } 117 118 static int virtio_ccw_hcall_notify(const uint64_t *args) 119 { 120 uint64_t subch_id = args[0]; 121 uint64_t queue = args[1]; 122 SubchDev *sch; 123 int cssid, ssid, schid, m; 124 125 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 126 return -EINVAL; 127 } 128 sch = css_find_subch(m, cssid, ssid, schid); 129 if (!sch || !css_subch_visible(sch)) { 130 return -EINVAL; 131 } 132 if (queue >= VIRTIO_QUEUE_MAX) { 133 return -EINVAL; 134 } 135 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 136 return 0; 137 138 } 139 140 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 141 { 142 uint64_t mem = args[0]; 143 MachineState *ms = MACHINE(qdev_get_machine()); 144 145 if (mem < ms->ram_size) { 146 /* Early printk */ 147 return 0; 148 } 149 return -EINVAL; 150 } 151 152 static void virtio_ccw_register_hcalls(void) 153 { 154 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 155 virtio_ccw_hcall_notify); 156 /* Tolerate early printk. */ 157 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 158 virtio_ccw_hcall_early_printk); 159 } 160 161 static void s390_memory_init(MemoryRegion *ram) 162 { 163 MemoryRegion *sysmem = get_system_memory(); 164 165 /* allocate RAM for core */ 166 memory_region_add_subregion(sysmem, 0, ram); 167 168 /* 169 * Configure the maximum page size. As no memory devices were created 170 * yet, this is the page size of initial memory only. 171 */ 172 s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal); 173 /* Initialize storage key device */ 174 s390_skeys_init(); 175 /* Initialize storage attributes device */ 176 s390_stattrib_init(); 177 } 178 179 static void s390_init_ipl_dev(const char *kernel_filename, 180 const char *kernel_cmdline, 181 const char *initrd_filename, const char *firmware, 182 const char *netboot_fw, bool enforce_bios) 183 { 184 Object *new = object_new(TYPE_S390_IPL); 185 DeviceState *dev = DEVICE(new); 186 char *netboot_fw_prop; 187 188 if (kernel_filename) { 189 qdev_prop_set_string(dev, "kernel", kernel_filename); 190 } 191 if (initrd_filename) { 192 qdev_prop_set_string(dev, "initrd", initrd_filename); 193 } 194 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 195 qdev_prop_set_string(dev, "firmware", firmware); 196 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 197 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 198 if (!strlen(netboot_fw_prop)) { 199 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 200 } 201 g_free(netboot_fw_prop); 202 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 203 new); 204 object_unref(new); 205 qdev_realize(dev, NULL, &error_fatal); 206 } 207 208 static void s390_create_virtio_net(BusState *bus, const char *name) 209 { 210 int i; 211 212 for (i = 0; i < nb_nics; i++) { 213 NICInfo *nd = &nd_table[i]; 214 DeviceState *dev; 215 216 if (!nd->model) { 217 nd->model = g_strdup("virtio"); 218 } 219 220 qemu_check_nic_model(nd, "virtio"); 221 222 dev = qdev_new(name); 223 qdev_set_nic_properties(dev, nd); 224 qdev_realize_and_unref(dev, bus, &error_fatal); 225 } 226 } 227 228 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 229 { 230 DeviceState *dev; 231 232 dev = qdev_new(type); 233 qdev_prop_set_chr(dev, "chardev", chardev); 234 qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal); 235 } 236 237 static void ccw_init(MachineState *machine) 238 { 239 int ret; 240 VirtualCssBus *css_bus; 241 DeviceState *dev; 242 243 s390_sclp_init(); 244 /* init memory + setup max page size. Required for the CPU model */ 245 s390_memory_init(machine->ram); 246 247 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 248 s390_init_cpus(machine); 249 250 /* Need CPU model to be determined before we can set up PV */ 251 s390_pv_init(machine->cgs, &error_fatal); 252 253 s390_flic_init(); 254 255 /* init the SIGP facility */ 256 s390_init_sigp(); 257 258 /* create AP bridge and bus(es) */ 259 s390_init_ap(); 260 261 /* get a BUS */ 262 css_bus = virtual_css_bus_init(); 263 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 264 machine->initrd_filename, 265 machine->firmware ?: "s390-ccw.img", 266 "s390-netboot.img", true); 267 268 dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE); 269 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 270 OBJECT(dev)); 271 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 272 273 /* register hypercalls */ 274 virtio_ccw_register_hcalls(); 275 276 s390_enable_css_support(s390_cpu_addr2state(0)); 277 278 ret = css_create_css_image(VIRTUAL_CSSID, true); 279 280 assert(ret == 0); 281 if (css_migration_enabled()) { 282 css_register_vmstate(); 283 } 284 285 /* Create VirtIO network adapters */ 286 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 287 288 /* init consoles */ 289 if (serial_hd(0)) { 290 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 291 } 292 if (serial_hd(1)) { 293 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 294 } 295 296 /* init the TOD clock */ 297 s390_init_tod(); 298 } 299 300 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 301 DeviceState *dev, Error **errp) 302 { 303 MachineState *ms = MACHINE(hotplug_dev); 304 S390CPU *cpu = S390_CPU(dev); 305 306 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 307 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 308 309 if (dev->hotplugged) { 310 raise_irq_cpu_hotplug(); 311 } 312 } 313 314 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 315 { 316 S390CPU *cpu = S390_CPU(cs); 317 318 s390_ipl_prepare_cpu(cpu); 319 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 320 } 321 322 static void s390_machine_unprotect(S390CcwMachineState *ms) 323 { 324 s390_pv_vm_disable(); 325 ms->pv = false; 326 migrate_del_blocker(pv_mig_blocker); 327 error_free_or_abort(&pv_mig_blocker); 328 ram_block_discard_disable(false); 329 } 330 331 static int s390_machine_protect(S390CcwMachineState *ms) 332 { 333 Error *local_err = NULL; 334 int rc; 335 336 /* 337 * Discarding of memory in RAM blocks does not work as expected with 338 * protected VMs. Sharing and unsharing pages would be required. Disable 339 * it for now, until until we have a solution to make at least Linux 340 * guests either support it (e.g., virtio-balloon) or fail gracefully. 341 */ 342 rc = ram_block_discard_disable(true); 343 if (rc) { 344 error_report("protected VMs: cannot disable RAM discard"); 345 return rc; 346 } 347 348 error_setg(&pv_mig_blocker, 349 "protected VMs are currently not migrateable."); 350 rc = migrate_add_blocker(pv_mig_blocker, &local_err); 351 if (rc) { 352 ram_block_discard_disable(false); 353 error_report_err(local_err); 354 error_free_or_abort(&pv_mig_blocker); 355 return rc; 356 } 357 358 /* Create SE VM */ 359 rc = s390_pv_vm_enable(); 360 if (rc) { 361 ram_block_discard_disable(false); 362 migrate_del_blocker(pv_mig_blocker); 363 error_free_or_abort(&pv_mig_blocker); 364 return rc; 365 } 366 367 ms->pv = true; 368 369 /* Will return 0 if API is not available since it's not vital */ 370 rc = s390_pv_query_info(); 371 if (rc) { 372 goto out_err; 373 } 374 375 /* Set SE header and unpack */ 376 rc = s390_ipl_prepare_pv_header(); 377 if (rc) { 378 goto out_err; 379 } 380 381 /* Decrypt image */ 382 rc = s390_ipl_pv_unpack(); 383 if (rc) { 384 goto out_err; 385 } 386 387 /* Verify integrity */ 388 rc = s390_pv_verify(); 389 if (rc) { 390 goto out_err; 391 } 392 return rc; 393 394 out_err: 395 s390_machine_unprotect(ms); 396 return rc; 397 } 398 399 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 400 { 401 CPUState *cs; 402 403 if (!s390_is_pv()) { 404 return; 405 } 406 /* Unsharing requires all cpus to be stopped */ 407 CPU_FOREACH(cs) { 408 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 409 } 410 s390_pv_unshare(); 411 s390_pv_prep_reset(); 412 } 413 414 static void s390_machine_reset(MachineState *machine) 415 { 416 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 417 enum s390_reset reset_type; 418 CPUState *cs, *t; 419 S390CPU *cpu; 420 421 /* get the reset parameters, reset them once done */ 422 s390_ipl_get_reset_request(&cs, &reset_type); 423 424 /* all CPUs are paused and synchronized at this point */ 425 s390_cmma_reset(); 426 427 cpu = S390_CPU(cs); 428 429 switch (reset_type) { 430 case S390_RESET_EXTERNAL: 431 case S390_RESET_REIPL: 432 if (s390_is_pv()) { 433 s390_machine_unprotect(ms); 434 } 435 436 qemu_devices_reset(); 437 s390_crypto_reset(); 438 439 /* configure and start the ipl CPU only */ 440 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 441 break; 442 case S390_RESET_MODIFIED_CLEAR: 443 /* 444 * Susbsystem reset needs to be done before we unshare memory 445 * and lose access to VIRTIO structures in guest memory. 446 */ 447 subsystem_reset(); 448 s390_crypto_reset(); 449 s390_pv_prepare_reset(ms); 450 CPU_FOREACH(t) { 451 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 452 } 453 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 454 break; 455 case S390_RESET_LOAD_NORMAL: 456 /* 457 * Susbsystem reset needs to be done before we unshare memory 458 * and lose access to VIRTIO structures in guest memory. 459 */ 460 subsystem_reset(); 461 s390_pv_prepare_reset(ms); 462 CPU_FOREACH(t) { 463 if (t == cs) { 464 continue; 465 } 466 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 467 } 468 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 469 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 470 break; 471 case S390_RESET_PV: /* Subcode 10 */ 472 subsystem_reset(); 473 s390_crypto_reset(); 474 475 CPU_FOREACH(t) { 476 if (t == cs) { 477 continue; 478 } 479 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 480 } 481 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 482 483 if (s390_machine_protect(ms)) { 484 s390_pv_inject_reset_error(cs); 485 /* 486 * Continue after the diag308 so the guest knows something 487 * went wrong. 488 */ 489 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 490 return; 491 } 492 493 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 494 break; 495 default: 496 g_assert_not_reached(); 497 } 498 499 CPU_FOREACH(t) { 500 run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0)); 501 } 502 s390_ipl_clear_reset_request(); 503 } 504 505 static void s390_machine_device_plug(HotplugHandler *hotplug_dev, 506 DeviceState *dev, Error **errp) 507 { 508 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 509 s390_cpu_plug(hotplug_dev, dev, errp); 510 } 511 } 512 513 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev, 514 DeviceState *dev, Error **errp) 515 { 516 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 517 error_setg(errp, "CPU hot unplug not supported on this machine"); 518 return; 519 } 520 } 521 522 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, 523 unsigned cpu_index) 524 { 525 MachineClass *mc = MACHINE_GET_CLASS(ms); 526 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 527 528 assert(cpu_index < possible_cpus->len); 529 return possible_cpus->cpus[cpu_index].props; 530 } 531 532 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms) 533 { 534 int i; 535 unsigned int max_cpus = ms->smp.max_cpus; 536 537 if (ms->possible_cpus) { 538 g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus); 539 return ms->possible_cpus; 540 } 541 542 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 543 sizeof(CPUArchId) * max_cpus); 544 ms->possible_cpus->len = max_cpus; 545 for (i = 0; i < ms->possible_cpus->len; i++) { 546 ms->possible_cpus->cpus[i].type = ms->cpu_type; 547 ms->possible_cpus->cpus[i].vcpus_count = 1; 548 ms->possible_cpus->cpus[i].arch_id = i; 549 ms->possible_cpus->cpus[i].props.has_core_id = true; 550 ms->possible_cpus->cpus[i].props.core_id = i; 551 } 552 553 return ms->possible_cpus; 554 } 555 556 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, 557 DeviceState *dev) 558 { 559 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 560 return HOTPLUG_HANDLER(machine); 561 } 562 return NULL; 563 } 564 565 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 566 { 567 CPUState *cs = qemu_get_cpu(cpu_index); 568 569 s390_cpu_restart(S390_CPU(cs)); 570 } 571 572 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 573 { 574 /* same logic as in sclp.c */ 575 int increment_size = 20; 576 ram_addr_t newsz; 577 578 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 579 increment_size++; 580 } 581 newsz = sz >> increment_size << increment_size; 582 583 if (sz != newsz) { 584 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 585 "MB to match machine restrictions. Consider updating " 586 "the guest definition.\n", (uint64_t) (sz / MiB), 587 (uint64_t) (newsz / MiB)); 588 } 589 return newsz; 590 } 591 592 static void ccw_machine_class_init(ObjectClass *oc, void *data) 593 { 594 MachineClass *mc = MACHINE_CLASS(oc); 595 NMIClass *nc = NMI_CLASS(oc); 596 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 597 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 598 599 s390mc->ri_allowed = true; 600 s390mc->cpu_model_allowed = true; 601 s390mc->css_migration_enabled = true; 602 s390mc->hpage_1m_allowed = true; 603 mc->init = ccw_init; 604 mc->reset = s390_machine_reset; 605 mc->block_default_type = IF_VIRTIO; 606 mc->no_cdrom = 1; 607 mc->no_floppy = 1; 608 mc->no_parallel = 1; 609 mc->no_sdcard = 1; 610 mc->max_cpus = S390_MAX_CPUS; 611 mc->has_hotpluggable_cpus = true; 612 assert(!mc->get_hotplug_handler); 613 mc->get_hotplug_handler = s390_get_hotplug_handler; 614 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 615 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 616 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 617 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 618 hc->plug = s390_machine_device_plug; 619 hc->unplug_request = s390_machine_device_unplug_request; 620 nc->nmi_monitor_handler = s390_nmi; 621 mc->default_ram_id = "s390.ram"; 622 } 623 624 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 625 { 626 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 627 628 return ms->aes_key_wrap; 629 } 630 631 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 632 Error **errp) 633 { 634 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 635 636 ms->aes_key_wrap = value; 637 } 638 639 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 640 { 641 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 642 643 return ms->dea_key_wrap; 644 } 645 646 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 647 Error **errp) 648 { 649 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 650 651 ms->dea_key_wrap = value; 652 } 653 654 static inline bool machine_get_zpcii_disable(Object *obj, Error **errp) 655 { 656 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 657 658 return ms->zpcii_disable; 659 } 660 661 static inline void machine_set_zpcii_disable(Object *obj, bool value, 662 Error **errp) 663 { 664 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 665 666 ms->zpcii_disable = value; 667 } 668 669 static S390CcwMachineClass *current_mc; 670 671 /* 672 * Get the class of the s390-ccw-virtio machine that is currently in use. 673 * Note: libvirt is using the "none" machine to probe for the features of the 674 * host CPU, so in case this is called with the "none" machine, the function 675 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 676 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 677 * below return the correct default value for the "none" machine. 678 * 679 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 680 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 681 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 682 * CPU initialization and s390_has_feat() later should be sufficient. 683 */ 684 static S390CcwMachineClass *get_machine_class(void) 685 { 686 if (unlikely(!current_mc)) { 687 /* 688 * No s390 ccw machine was instantiated, we are likely to 689 * be called for the 'none' machine. The properties will 690 * have their after-initialization values. 691 */ 692 current_mc = S390_CCW_MACHINE_CLASS( 693 object_class_by_name(TYPE_S390_CCW_MACHINE)); 694 } 695 return current_mc; 696 } 697 698 bool ri_allowed(void) 699 { 700 return get_machine_class()->ri_allowed; 701 } 702 703 bool cpu_model_allowed(void) 704 { 705 return get_machine_class()->cpu_model_allowed; 706 } 707 708 bool hpage_1m_allowed(void) 709 { 710 return get_machine_class()->hpage_1m_allowed; 711 } 712 713 static char *machine_get_loadparm(Object *obj, Error **errp) 714 { 715 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 716 717 /* make a NUL-terminated string */ 718 return g_strndup((char *) ms->loadparm, sizeof(ms->loadparm)); 719 } 720 721 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 722 { 723 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 724 int i; 725 726 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 727 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 728 729 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 730 (c == ' ')) { 731 ms->loadparm[i] = c; 732 } else { 733 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 734 c, c); 735 return; 736 } 737 } 738 739 for (; i < sizeof(ms->loadparm); i++) { 740 ms->loadparm[i] = ' '; /* pad right with spaces */ 741 } 742 } 743 static inline void s390_machine_initfn(Object *obj) 744 { 745 object_property_add_bool(obj, "aes-key-wrap", 746 machine_get_aes_key_wrap, 747 machine_set_aes_key_wrap); 748 object_property_set_description(obj, "aes-key-wrap", 749 "enable/disable AES key wrapping using the CPACF wrapping key"); 750 object_property_set_bool(obj, "aes-key-wrap", true, NULL); 751 752 object_property_add_bool(obj, "dea-key-wrap", 753 machine_get_dea_key_wrap, 754 machine_set_dea_key_wrap); 755 object_property_set_description(obj, "dea-key-wrap", 756 "enable/disable DEA key wrapping using the CPACF wrapping key"); 757 object_property_set_bool(obj, "dea-key-wrap", true, NULL); 758 object_property_add_str(obj, "loadparm", 759 machine_get_loadparm, machine_set_loadparm); 760 object_property_set_description(obj, "loadparm", 761 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 762 " to upper case) to pass to machine loader, boot manager," 763 " and guest kernel"); 764 765 object_property_add_bool(obj, "zpcii-disable", 766 machine_get_zpcii_disable, 767 machine_set_zpcii_disable); 768 object_property_set_description(obj, "zpcii-disable", 769 "disable zPCI interpretation facilties"); 770 object_property_set_bool(obj, "zpcii-disable", false, NULL); 771 } 772 773 static const TypeInfo ccw_machine_info = { 774 .name = TYPE_S390_CCW_MACHINE, 775 .parent = TYPE_MACHINE, 776 .abstract = true, 777 .instance_size = sizeof(S390CcwMachineState), 778 .instance_init = s390_machine_initfn, 779 .class_size = sizeof(S390CcwMachineClass), 780 .class_init = ccw_machine_class_init, 781 .interfaces = (InterfaceInfo[]) { 782 { TYPE_NMI }, 783 { TYPE_HOTPLUG_HANDLER}, 784 { } 785 }, 786 }; 787 788 bool css_migration_enabled(void) 789 { 790 return get_machine_class()->css_migration_enabled; 791 } 792 793 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 794 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 795 void *data) \ 796 { \ 797 MachineClass *mc = MACHINE_CLASS(oc); \ 798 ccw_machine_##suffix##_class_options(mc); \ 799 mc->desc = "Virtual s390x machine (version " verstr ")"; \ 800 if (latest) { \ 801 mc->alias = "s390-ccw-virtio"; \ 802 mc->is_default = true; \ 803 } \ 804 } \ 805 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 806 { \ 807 MachineState *machine = MACHINE(obj); \ 808 current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 809 ccw_machine_##suffix##_instance_options(machine); \ 810 } \ 811 static const TypeInfo ccw_machine_##suffix##_info = { \ 812 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 813 .parent = TYPE_S390_CCW_MACHINE, \ 814 .class_init = ccw_machine_##suffix##_class_init, \ 815 .instance_init = ccw_machine_##suffix##_instance_init, \ 816 }; \ 817 static void ccw_machine_register_##suffix(void) \ 818 { \ 819 type_register_static(&ccw_machine_##suffix##_info); \ 820 } \ 821 type_init(ccw_machine_register_##suffix) 822 823 static void ccw_machine_7_2_instance_options(MachineState *machine) 824 { 825 } 826 827 static void ccw_machine_7_2_class_options(MachineClass *mc) 828 { 829 } 830 DEFINE_CCW_MACHINE(7_2, "7.2", true); 831 832 static void ccw_machine_7_1_instance_options(MachineState *machine) 833 { 834 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 }; 835 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 836 837 ccw_machine_7_2_instance_options(machine); 838 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE); 839 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 840 ms->zpcii_disable = true; 841 } 842 843 static void ccw_machine_7_1_class_options(MachineClass *mc) 844 { 845 ccw_machine_7_2_class_options(mc); 846 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 847 } 848 DEFINE_CCW_MACHINE(7_1, "7.1", false); 849 850 static void ccw_machine_7_0_instance_options(MachineState *machine) 851 { 852 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 }; 853 854 ccw_machine_7_1_instance_options(machine); 855 s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat); 856 } 857 858 static void ccw_machine_7_0_class_options(MachineClass *mc) 859 { 860 ccw_machine_7_1_class_options(mc); 861 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 862 } 863 DEFINE_CCW_MACHINE(7_0, "7.0", false); 864 865 static void ccw_machine_6_2_instance_options(MachineState *machine) 866 { 867 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 }; 868 869 ccw_machine_7_0_instance_options(machine); 870 s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat); 871 } 872 873 static void ccw_machine_6_2_class_options(MachineClass *mc) 874 { 875 ccw_machine_7_0_class_options(mc); 876 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 877 } 878 DEFINE_CCW_MACHINE(6_2, "6.2", false); 879 880 static void ccw_machine_6_1_instance_options(MachineState *machine) 881 { 882 ccw_machine_6_2_instance_options(machine); 883 s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA); 884 s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2); 885 s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH); 886 s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP); 887 s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI); 888 } 889 890 static void ccw_machine_6_1_class_options(MachineClass *mc) 891 { 892 ccw_machine_6_2_class_options(mc); 893 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 894 mc->smp_props.prefer_sockets = true; 895 } 896 DEFINE_CCW_MACHINE(6_1, "6.1", false); 897 898 static void ccw_machine_6_0_instance_options(MachineState *machine) 899 { 900 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 }; 901 902 ccw_machine_6_1_instance_options(machine); 903 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 904 } 905 906 static void ccw_machine_6_0_class_options(MachineClass *mc) 907 { 908 ccw_machine_6_1_class_options(mc); 909 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 910 } 911 DEFINE_CCW_MACHINE(6_0, "6.0", false); 912 913 static void ccw_machine_5_2_instance_options(MachineState *machine) 914 { 915 ccw_machine_6_0_instance_options(machine); 916 } 917 918 static void ccw_machine_5_2_class_options(MachineClass *mc) 919 { 920 ccw_machine_6_0_class_options(mc); 921 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 922 } 923 DEFINE_CCW_MACHINE(5_2, "5.2", false); 924 925 static void ccw_machine_5_1_instance_options(MachineState *machine) 926 { 927 ccw_machine_5_2_instance_options(machine); 928 } 929 930 static void ccw_machine_5_1_class_options(MachineClass *mc) 931 { 932 ccw_machine_5_2_class_options(mc); 933 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 934 } 935 DEFINE_CCW_MACHINE(5_1, "5.1", false); 936 937 static void ccw_machine_5_0_instance_options(MachineState *machine) 938 { 939 ccw_machine_5_1_instance_options(machine); 940 } 941 942 static void ccw_machine_5_0_class_options(MachineClass *mc) 943 { 944 ccw_machine_5_1_class_options(mc); 945 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 946 } 947 DEFINE_CCW_MACHINE(5_0, "5.0", false); 948 949 static void ccw_machine_4_2_instance_options(MachineState *machine) 950 { 951 ccw_machine_5_0_instance_options(machine); 952 } 953 954 static void ccw_machine_4_2_class_options(MachineClass *mc) 955 { 956 ccw_machine_5_0_class_options(mc); 957 mc->fixup_ram_size = s390_fixup_ram_size; 958 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 959 } 960 DEFINE_CCW_MACHINE(4_2, "4.2", false); 961 962 static void ccw_machine_4_1_instance_options(MachineState *machine) 963 { 964 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 965 ccw_machine_4_2_instance_options(machine); 966 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 967 } 968 969 static void ccw_machine_4_1_class_options(MachineClass *mc) 970 { 971 ccw_machine_4_2_class_options(mc); 972 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 973 } 974 DEFINE_CCW_MACHINE(4_1, "4.1", false); 975 976 static void ccw_machine_4_0_instance_options(MachineState *machine) 977 { 978 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 979 ccw_machine_4_1_instance_options(machine); 980 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 981 } 982 983 static void ccw_machine_4_0_class_options(MachineClass *mc) 984 { 985 ccw_machine_4_1_class_options(mc); 986 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 987 } 988 DEFINE_CCW_MACHINE(4_0, "4.0", false); 989 990 static void ccw_machine_3_1_instance_options(MachineState *machine) 991 { 992 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 993 ccw_machine_4_0_instance_options(machine); 994 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 995 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 996 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 997 } 998 999 static void ccw_machine_3_1_class_options(MachineClass *mc) 1000 { 1001 ccw_machine_4_0_class_options(mc); 1002 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 1003 } 1004 DEFINE_CCW_MACHINE(3_1, "3.1", false); 1005 1006 static void ccw_machine_3_0_instance_options(MachineState *machine) 1007 { 1008 ccw_machine_3_1_instance_options(machine); 1009 } 1010 1011 static void ccw_machine_3_0_class_options(MachineClass *mc) 1012 { 1013 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1014 1015 s390mc->hpage_1m_allowed = false; 1016 ccw_machine_3_1_class_options(mc); 1017 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 1018 } 1019 DEFINE_CCW_MACHINE(3_0, "3.0", false); 1020 1021 static void ccw_machine_2_12_instance_options(MachineState *machine) 1022 { 1023 ccw_machine_3_0_instance_options(machine); 1024 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 1025 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 1026 } 1027 1028 static void ccw_machine_2_12_class_options(MachineClass *mc) 1029 { 1030 ccw_machine_3_0_class_options(mc); 1031 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 1032 } 1033 DEFINE_CCW_MACHINE(2_12, "2.12", false); 1034 1035 static void ccw_machine_2_11_instance_options(MachineState *machine) 1036 { 1037 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 1038 ccw_machine_2_12_instance_options(machine); 1039 1040 /* before 2.12 we emulated the very first z900 */ 1041 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 1042 } 1043 1044 static void ccw_machine_2_11_class_options(MachineClass *mc) 1045 { 1046 static GlobalProperty compat[] = { 1047 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 1048 }; 1049 1050 ccw_machine_2_12_class_options(mc); 1051 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 1052 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1053 } 1054 DEFINE_CCW_MACHINE(2_11, "2.11", false); 1055 1056 static void ccw_machine_2_10_instance_options(MachineState *machine) 1057 { 1058 ccw_machine_2_11_instance_options(machine); 1059 } 1060 1061 static void ccw_machine_2_10_class_options(MachineClass *mc) 1062 { 1063 ccw_machine_2_11_class_options(mc); 1064 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 1065 } 1066 DEFINE_CCW_MACHINE(2_10, "2.10", false); 1067 1068 static void ccw_machine_2_9_instance_options(MachineState *machine) 1069 { 1070 ccw_machine_2_10_instance_options(machine); 1071 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 1072 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 1073 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 1074 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 1075 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 1076 } 1077 1078 static void ccw_machine_2_9_class_options(MachineClass *mc) 1079 { 1080 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1081 static GlobalProperty compat[] = { 1082 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 1083 }; 1084 1085 ccw_machine_2_10_class_options(mc); 1086 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 1087 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1088 s390mc->css_migration_enabled = false; 1089 } 1090 DEFINE_CCW_MACHINE(2_9, "2.9", false); 1091 1092 static void ccw_machine_2_8_instance_options(MachineState *machine) 1093 { 1094 ccw_machine_2_9_instance_options(machine); 1095 } 1096 1097 static void ccw_machine_2_8_class_options(MachineClass *mc) 1098 { 1099 static GlobalProperty compat[] = { 1100 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 1101 }; 1102 1103 ccw_machine_2_9_class_options(mc); 1104 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 1105 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1106 } 1107 DEFINE_CCW_MACHINE(2_8, "2.8", false); 1108 1109 static void ccw_machine_2_7_instance_options(MachineState *machine) 1110 { 1111 ccw_machine_2_8_instance_options(machine); 1112 } 1113 1114 static void ccw_machine_2_7_class_options(MachineClass *mc) 1115 { 1116 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1117 1118 s390mc->cpu_model_allowed = false; 1119 ccw_machine_2_8_class_options(mc); 1120 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 1121 } 1122 DEFINE_CCW_MACHINE(2_7, "2.7", false); 1123 1124 static void ccw_machine_2_6_instance_options(MachineState *machine) 1125 { 1126 ccw_machine_2_7_instance_options(machine); 1127 } 1128 1129 static void ccw_machine_2_6_class_options(MachineClass *mc) 1130 { 1131 S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc); 1132 static GlobalProperty compat[] = { 1133 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1134 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1135 }; 1136 1137 s390mc->ri_allowed = false; 1138 ccw_machine_2_7_class_options(mc); 1139 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1140 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1141 } 1142 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1143 1144 static void ccw_machine_2_5_instance_options(MachineState *machine) 1145 { 1146 ccw_machine_2_6_instance_options(machine); 1147 } 1148 1149 static void ccw_machine_2_5_class_options(MachineClass *mc) 1150 { 1151 ccw_machine_2_6_class_options(mc); 1152 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1153 } 1154 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1155 1156 static void ccw_machine_2_4_instance_options(MachineState *machine) 1157 { 1158 ccw_machine_2_5_instance_options(machine); 1159 } 1160 1161 static void ccw_machine_2_4_class_options(MachineClass *mc) 1162 { 1163 static GlobalProperty compat[] = { 1164 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1165 { "virtio-blk-ccw", "max_revision", "0", }, 1166 { "virtio-balloon-ccw", "max_revision", "0", }, 1167 { "virtio-serial-ccw", "max_revision", "0", }, 1168 { "virtio-9p-ccw", "max_revision", "0", }, 1169 { "virtio-rng-ccw", "max_revision", "0", }, 1170 { "virtio-net-ccw", "max_revision", "0", }, 1171 { "virtio-scsi-ccw", "max_revision", "0", }, 1172 { "vhost-scsi-ccw", "max_revision", "0", }, 1173 }; 1174 1175 ccw_machine_2_5_class_options(mc); 1176 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1177 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1178 } 1179 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1180 1181 static void ccw_machine_register_types(void) 1182 { 1183 type_register_static(&ccw_machine_info); 1184 } 1185 1186 type_init(ccw_machine_register_types) 1187