1 /* 2 * virtio ccw machine 3 * 4 * Copyright 2012, 2020 IBM Corp. 5 * Copyright (c) 2009 Alexander Graf <agraf@suse.de> 6 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 7 * Janosch Frank <frankja@linux.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or (at 10 * your option) any later version. See the COPYING file in the top-level 11 * directory. 12 */ 13 14 #include "qemu/osdep.h" 15 #include "qapi/error.h" 16 #include "cpu.h" 17 #include "hw/boards.h" 18 #include "exec/address-spaces.h" 19 #include "exec/ram_addr.h" 20 #include "hw/s390x/s390-virtio-hcall.h" 21 #include "hw/s390x/sclp.h" 22 #include "hw/s390x/s390_flic.h" 23 #include "hw/s390x/ioinst.h" 24 #include "hw/s390x/css.h" 25 #include "virtio-ccw.h" 26 #include "qemu/config-file.h" 27 #include "qemu/ctype.h" 28 #include "qemu/error-report.h" 29 #include "qemu/option.h" 30 #include "qemu/qemu-print.h" 31 #include "s390-pci-bus.h" 32 #include "sysemu/reset.h" 33 #include "hw/s390x/storage-keys.h" 34 #include "hw/s390x/storage-attributes.h" 35 #include "hw/s390x/event-facility.h" 36 #include "ipl.h" 37 #include "hw/s390x/s390-virtio-ccw.h" 38 #include "hw/s390x/css-bridge.h" 39 #include "hw/s390x/ap-bridge.h" 40 #include "migration/register.h" 41 #include "cpu_models.h" 42 #include "hw/nmi.h" 43 #include "hw/qdev-properties.h" 44 #include "hw/s390x/tod.h" 45 #include "sysemu/sysemu.h" 46 #include "sysemu/balloon.h" 47 #include "hw/s390x/pv.h" 48 #include <linux/kvm.h> 49 #include "migration/blocker.h" 50 51 static Error *pv_mig_blocker; 52 53 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) 54 { 55 static MachineState *ms; 56 57 if (!ms) { 58 ms = MACHINE(qdev_get_machine()); 59 g_assert(ms->possible_cpus); 60 } 61 62 /* CPU address corresponds to the core_id and the index */ 63 if (cpu_addr >= ms->possible_cpus->len) { 64 return NULL; 65 } 66 return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu); 67 } 68 69 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id, 70 Error **errp) 71 { 72 S390CPU *cpu = S390_CPU(object_new(typename)); 73 Error *err = NULL; 74 75 object_property_set_int(OBJECT(cpu), core_id, "core-id", &err); 76 if (err != NULL) { 77 goto out; 78 } 79 object_property_set_bool(OBJECT(cpu), true, "realized", &err); 80 81 out: 82 object_unref(OBJECT(cpu)); 83 if (err) { 84 error_propagate(errp, err); 85 cpu = NULL; 86 } 87 return cpu; 88 } 89 90 static void s390_init_cpus(MachineState *machine) 91 { 92 MachineClass *mc = MACHINE_GET_CLASS(machine); 93 int i; 94 95 /* initialize possible_cpus */ 96 mc->possible_cpu_arch_ids(machine); 97 98 for (i = 0; i < machine->smp.cpus; i++) { 99 s390x_new_cpu(machine->cpu_type, i, &error_fatal); 100 } 101 } 102 103 static const char *const reset_dev_types[] = { 104 TYPE_VIRTUAL_CSS_BRIDGE, 105 "s390-sclp-event-facility", 106 "s390-flic", 107 "diag288", 108 }; 109 110 static void subsystem_reset(void) 111 { 112 DeviceState *dev; 113 int i; 114 115 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) { 116 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL)); 117 if (dev) { 118 qdev_reset_all(dev); 119 } 120 } 121 } 122 123 static int virtio_ccw_hcall_notify(const uint64_t *args) 124 { 125 uint64_t subch_id = args[0]; 126 uint64_t queue = args[1]; 127 SubchDev *sch; 128 int cssid, ssid, schid, m; 129 130 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) { 131 return -EINVAL; 132 } 133 sch = css_find_subch(m, cssid, ssid, schid); 134 if (!sch || !css_subch_visible(sch)) { 135 return -EINVAL; 136 } 137 if (queue >= VIRTIO_QUEUE_MAX) { 138 return -EINVAL; 139 } 140 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue); 141 return 0; 142 143 } 144 145 static int virtio_ccw_hcall_early_printk(const uint64_t *args) 146 { 147 uint64_t mem = args[0]; 148 149 if (mem < ram_size) { 150 /* Early printk */ 151 return 0; 152 } 153 return -EINVAL; 154 } 155 156 static void virtio_ccw_register_hcalls(void) 157 { 158 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY, 159 virtio_ccw_hcall_notify); 160 /* Tolerate early printk. */ 161 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY, 162 virtio_ccw_hcall_early_printk); 163 } 164 165 static void s390_memory_init(MemoryRegion *ram) 166 { 167 MemoryRegion *sysmem = get_system_memory(); 168 Error *local_err = NULL; 169 170 /* allocate RAM for core */ 171 memory_region_add_subregion(sysmem, 0, ram); 172 173 /* 174 * Configure the maximum page size. As no memory devices were created 175 * yet, this is the page size of initial memory only. 176 */ 177 s390_set_max_pagesize(qemu_maxrampagesize(), &local_err); 178 if (local_err) { 179 error_report_err(local_err); 180 exit(EXIT_FAILURE); 181 } 182 /* Initialize storage key device */ 183 s390_skeys_init(); 184 /* Initialize storage attributes device */ 185 s390_stattrib_init(); 186 } 187 188 static void s390_init_ipl_dev(const char *kernel_filename, 189 const char *kernel_cmdline, 190 const char *initrd_filename, const char *firmware, 191 const char *netboot_fw, bool enforce_bios) 192 { 193 Object *new = object_new(TYPE_S390_IPL); 194 DeviceState *dev = DEVICE(new); 195 char *netboot_fw_prop; 196 197 if (kernel_filename) { 198 qdev_prop_set_string(dev, "kernel", kernel_filename); 199 } 200 if (initrd_filename) { 201 qdev_prop_set_string(dev, "initrd", initrd_filename); 202 } 203 qdev_prop_set_string(dev, "cmdline", kernel_cmdline); 204 qdev_prop_set_string(dev, "firmware", firmware); 205 qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); 206 netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort); 207 if (!strlen(netboot_fw_prop)) { 208 qdev_prop_set_string(dev, "netboot_fw", netboot_fw); 209 } 210 g_free(netboot_fw_prop); 211 object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, 212 new, NULL); 213 object_unref(new); 214 qdev_init_nofail(dev); 215 } 216 217 static void s390_create_virtio_net(BusState *bus, const char *name) 218 { 219 int i; 220 221 for (i = 0; i < nb_nics; i++) { 222 NICInfo *nd = &nd_table[i]; 223 DeviceState *dev; 224 225 if (!nd->model) { 226 nd->model = g_strdup("virtio"); 227 } 228 229 qemu_check_nic_model(nd, "virtio"); 230 231 dev = qdev_create(bus, name); 232 qdev_set_nic_properties(dev, nd); 233 qdev_init_nofail(dev); 234 } 235 } 236 237 static void s390_create_sclpconsole(const char *type, Chardev *chardev) 238 { 239 DeviceState *dev; 240 241 dev = qdev_create(sclp_get_event_facility_bus(), type); 242 qdev_prop_set_chr(dev, "chardev", chardev); 243 qdev_init_nofail(dev); 244 } 245 246 static void ccw_init(MachineState *machine) 247 { 248 int ret; 249 VirtualCssBus *css_bus; 250 DeviceState *dev; 251 252 s390_sclp_init(); 253 /* init memory + setup max page size. Required for the CPU model */ 254 s390_memory_init(machine->ram); 255 256 /* init CPUs (incl. CPU model) early so s390_has_feature() works */ 257 s390_init_cpus(machine); 258 259 s390_flic_init(); 260 261 /* init the SIGP facility */ 262 s390_init_sigp(); 263 264 /* create AP bridge and bus(es) */ 265 s390_init_ap(); 266 267 /* get a BUS */ 268 css_bus = virtual_css_bus_init(); 269 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline, 270 machine->initrd_filename, "s390-ccw.img", 271 "s390-netboot.img", true); 272 273 dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE); 274 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE, 275 OBJECT(dev), NULL); 276 qdev_init_nofail(dev); 277 278 /* register hypercalls */ 279 virtio_ccw_register_hcalls(); 280 281 s390_enable_css_support(s390_cpu_addr2state(0)); 282 283 ret = css_create_css_image(VIRTUAL_CSSID, true); 284 285 assert(ret == 0); 286 if (css_migration_enabled()) { 287 css_register_vmstate(); 288 } 289 290 /* Create VirtIO network adapters */ 291 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw"); 292 293 /* init consoles */ 294 if (serial_hd(0)) { 295 s390_create_sclpconsole("sclpconsole", serial_hd(0)); 296 } 297 if (serial_hd(1)) { 298 s390_create_sclpconsole("sclplmconsole", serial_hd(1)); 299 } 300 301 /* init the TOD clock */ 302 s390_init_tod(); 303 } 304 305 static void s390_cpu_plug(HotplugHandler *hotplug_dev, 306 DeviceState *dev, Error **errp) 307 { 308 MachineState *ms = MACHINE(hotplug_dev); 309 S390CPU *cpu = S390_CPU(dev); 310 311 g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu); 312 ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev); 313 314 if (dev->hotplugged) { 315 raise_irq_cpu_hotplug(); 316 } 317 } 318 319 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg) 320 { 321 S390CPU *cpu = S390_CPU(cs); 322 323 s390_ipl_prepare_cpu(cpu); 324 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 325 } 326 327 static void s390_machine_unprotect(S390CcwMachineState *ms) 328 { 329 s390_pv_vm_disable(); 330 ms->pv = false; 331 migrate_del_blocker(pv_mig_blocker); 332 error_free_or_abort(&pv_mig_blocker); 333 qemu_balloon_inhibit(false); 334 } 335 336 static int s390_machine_protect(S390CcwMachineState *ms) 337 { 338 Error *local_err = NULL; 339 int rc; 340 341 /* 342 * Ballooning on protected VMs needs support in the guest for 343 * sharing and unsharing balloon pages. Block ballooning for 344 * now, until we have a solution to make at least Linux guests 345 * either support it or fail gracefully. 346 */ 347 qemu_balloon_inhibit(true); 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 qemu_balloon_inhibit(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 qemu_balloon_inhibit(false); 362 error_report_err(local_err); 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_machine_inject_pv_error(CPUState *cs) 395 { 396 int r1 = (cs->kvm_run->s390_sieic.ipa & 0x00f0) >> 4; 397 CPUS390XState *env = &S390_CPU(cs)->env; 398 399 /* Report that we are unable to enter protected mode */ 400 env->regs[r1 + 1] = DIAG_308_RC_INVAL_FOR_PV; 401 } 402 403 static void s390_pv_prepare_reset(S390CcwMachineState *ms) 404 { 405 CPUState *cs; 406 407 if (!s390_is_pv()) { 408 return; 409 } 410 /* Unsharing requires all cpus to be stopped */ 411 CPU_FOREACH(cs) { 412 s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs)); 413 } 414 s390_pv_unshare(); 415 s390_pv_perf_clear_reset(); 416 } 417 418 static void s390_machine_reset(MachineState *machine) 419 { 420 S390CcwMachineState *ms = S390_CCW_MACHINE(machine); 421 enum s390_reset reset_type; 422 CPUState *cs, *t; 423 S390CPU *cpu; 424 425 /* get the reset parameters, reset them once done */ 426 s390_ipl_get_reset_request(&cs, &reset_type); 427 428 /* all CPUs are paused and synchronized at this point */ 429 s390_cmma_reset(); 430 431 cpu = S390_CPU(cs); 432 433 switch (reset_type) { 434 case S390_RESET_EXTERNAL: 435 case S390_RESET_REIPL: 436 if (s390_is_pv()) { 437 s390_machine_unprotect(ms); 438 } 439 440 qemu_devices_reset(); 441 s390_crypto_reset(); 442 443 /* configure and start the ipl CPU only */ 444 run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL); 445 break; 446 case S390_RESET_MODIFIED_CLEAR: 447 /* 448 * Susbsystem reset needs to be done before we unshare memory 449 * and lose access to VIRTIO structures in guest memory. 450 */ 451 subsystem_reset(); 452 s390_crypto_reset(); 453 s390_pv_prepare_reset(ms); 454 CPU_FOREACH(t) { 455 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 456 } 457 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 458 break; 459 case S390_RESET_LOAD_NORMAL: 460 /* 461 * Susbsystem reset needs to be done before we unshare memory 462 * and lose access to VIRTIO structures in guest memory. 463 */ 464 subsystem_reset(); 465 s390_pv_prepare_reset(ms); 466 CPU_FOREACH(t) { 467 if (t == cs) { 468 continue; 469 } 470 run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); 471 } 472 run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL); 473 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 474 break; 475 case S390_RESET_PV: /* Subcode 10 */ 476 subsystem_reset(); 477 s390_crypto_reset(); 478 479 CPU_FOREACH(t) { 480 if (t == cs) { 481 continue; 482 } 483 run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); 484 } 485 run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL); 486 487 if (s390_machine_protect(ms)) { 488 s390_machine_inject_pv_error(cs); 489 /* 490 * Continue after the diag308 so the guest knows something 491 * went wrong. 492 */ 493 s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); 494 return; 495 } 496 497 run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL); 498 break; 499 default: 500 g_assert_not_reached(); 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_hot_add_cpu(MachineState *machine, 566 const int64_t id, Error **errp) 567 { 568 ObjectClass *oc; 569 570 g_assert(machine->possible_cpus->cpus[0].cpu); 571 oc = OBJECT_CLASS(CPU_GET_CLASS(machine->possible_cpus->cpus[0].cpu)); 572 573 s390x_new_cpu(object_class_get_name(oc), id, errp); 574 } 575 576 static void s390_nmi(NMIState *n, int cpu_index, Error **errp) 577 { 578 CPUState *cs = qemu_get_cpu(cpu_index); 579 580 s390_cpu_restart(S390_CPU(cs)); 581 } 582 583 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz) 584 { 585 /* same logic as in sclp.c */ 586 int increment_size = 20; 587 ram_addr_t newsz; 588 589 while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) { 590 increment_size++; 591 } 592 newsz = sz >> increment_size << increment_size; 593 594 if (sz != newsz) { 595 qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64 596 "MB to match machine restrictions. Consider updating " 597 "the guest definition.\n", (uint64_t) (sz / MiB), 598 (uint64_t) (newsz / MiB)); 599 } 600 return newsz; 601 } 602 603 static void ccw_machine_class_init(ObjectClass *oc, void *data) 604 { 605 MachineClass *mc = MACHINE_CLASS(oc); 606 NMIClass *nc = NMI_CLASS(oc); 607 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 608 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 609 610 s390mc->ri_allowed = true; 611 s390mc->cpu_model_allowed = true; 612 s390mc->css_migration_enabled = true; 613 s390mc->hpage_1m_allowed = true; 614 mc->init = ccw_init; 615 mc->reset = s390_machine_reset; 616 mc->hot_add_cpu = s390_hot_add_cpu; 617 mc->block_default_type = IF_VIRTIO; 618 mc->no_cdrom = 1; 619 mc->no_floppy = 1; 620 mc->no_parallel = 1; 621 mc->no_sdcard = 1; 622 mc->max_cpus = S390_MAX_CPUS; 623 mc->has_hotpluggable_cpus = true; 624 assert(!mc->get_hotplug_handler); 625 mc->get_hotplug_handler = s390_get_hotplug_handler; 626 mc->cpu_index_to_instance_props = s390_cpu_index_to_props; 627 mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids; 628 /* it is overridden with 'host' cpu *in kvm_arch_init* */ 629 mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu"); 630 hc->plug = s390_machine_device_plug; 631 hc->unplug_request = s390_machine_device_unplug_request; 632 nc->nmi_monitor_handler = s390_nmi; 633 mc->default_ram_id = "s390.ram"; 634 } 635 636 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp) 637 { 638 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 639 640 return ms->aes_key_wrap; 641 } 642 643 static inline void machine_set_aes_key_wrap(Object *obj, bool value, 644 Error **errp) 645 { 646 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 647 648 ms->aes_key_wrap = value; 649 } 650 651 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp) 652 { 653 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 654 655 return ms->dea_key_wrap; 656 } 657 658 static inline void machine_set_dea_key_wrap(Object *obj, bool value, 659 Error **errp) 660 { 661 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 662 663 ms->dea_key_wrap = value; 664 } 665 666 static S390CcwMachineClass *current_mc; 667 668 /* 669 * Get the class of the s390-ccw-virtio machine that is currently in use. 670 * Note: libvirt is using the "none" machine to probe for the features of the 671 * host CPU, so in case this is called with the "none" machine, the function 672 * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the 673 * various "*_allowed" variables are enabled, so that the *_allowed() wrappers 674 * below return the correct default value for the "none" machine. 675 * 676 * Attention! Do *not* add additional new wrappers for CPU features (e.g. like 677 * the ri_allowed() wrapper) via this mechanism anymore. CPU features should 678 * be handled via the CPU models, i.e. checking with cpu_model_allowed() during 679 * CPU initialization and s390_has_feat() later should be sufficient. 680 */ 681 static S390CcwMachineClass *get_machine_class(void) 682 { 683 if (unlikely(!current_mc)) { 684 /* 685 * No s390 ccw machine was instantiated, we are likely to 686 * be called for the 'none' machine. The properties will 687 * have their after-initialization values. 688 */ 689 current_mc = S390_MACHINE_CLASS( 690 object_class_by_name(TYPE_S390_CCW_MACHINE)); 691 } 692 return current_mc; 693 } 694 695 bool ri_allowed(void) 696 { 697 return get_machine_class()->ri_allowed; 698 } 699 700 bool cpu_model_allowed(void) 701 { 702 return get_machine_class()->cpu_model_allowed; 703 } 704 705 bool hpage_1m_allowed(void) 706 { 707 return get_machine_class()->hpage_1m_allowed; 708 } 709 710 static char *machine_get_loadparm(Object *obj, Error **errp) 711 { 712 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 713 714 return g_memdup(ms->loadparm, sizeof(ms->loadparm)); 715 } 716 717 static void machine_set_loadparm(Object *obj, const char *val, Error **errp) 718 { 719 S390CcwMachineState *ms = S390_CCW_MACHINE(obj); 720 int i; 721 722 for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) { 723 uint8_t c = qemu_toupper(val[i]); /* mimic HMC */ 724 725 if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') || 726 (c == ' ')) { 727 ms->loadparm[i] = c; 728 } else { 729 error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)", 730 c, c); 731 return; 732 } 733 } 734 735 for (; i < sizeof(ms->loadparm); i++) { 736 ms->loadparm[i] = ' '; /* pad right with spaces */ 737 } 738 } 739 static inline void s390_machine_initfn(Object *obj) 740 { 741 object_property_add_bool(obj, "aes-key-wrap", 742 machine_get_aes_key_wrap, 743 machine_set_aes_key_wrap, NULL); 744 object_property_set_description(obj, "aes-key-wrap", 745 "enable/disable AES key wrapping using the CPACF wrapping key", 746 NULL); 747 object_property_set_bool(obj, true, "aes-key-wrap", NULL); 748 749 object_property_add_bool(obj, "dea-key-wrap", 750 machine_get_dea_key_wrap, 751 machine_set_dea_key_wrap, NULL); 752 object_property_set_description(obj, "dea-key-wrap", 753 "enable/disable DEA key wrapping using the CPACF wrapping key", 754 NULL); 755 object_property_set_bool(obj, true, "dea-key-wrap", NULL); 756 object_property_add_str(obj, "loadparm", 757 machine_get_loadparm, machine_set_loadparm, NULL); 758 object_property_set_description(obj, "loadparm", 759 "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted" 760 " to upper case) to pass to machine loader, boot manager," 761 " and guest kernel", 762 NULL); 763 } 764 765 static const TypeInfo ccw_machine_info = { 766 .name = TYPE_S390_CCW_MACHINE, 767 .parent = TYPE_MACHINE, 768 .abstract = true, 769 .instance_size = sizeof(S390CcwMachineState), 770 .instance_init = s390_machine_initfn, 771 .class_size = sizeof(S390CcwMachineClass), 772 .class_init = ccw_machine_class_init, 773 .interfaces = (InterfaceInfo[]) { 774 { TYPE_NMI }, 775 { TYPE_HOTPLUG_HANDLER}, 776 { } 777 }, 778 }; 779 780 bool css_migration_enabled(void) 781 { 782 return get_machine_class()->css_migration_enabled; 783 } 784 785 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \ 786 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \ 787 void *data) \ 788 { \ 789 MachineClass *mc = MACHINE_CLASS(oc); \ 790 ccw_machine_##suffix##_class_options(mc); \ 791 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \ 792 if (latest) { \ 793 mc->alias = "s390-ccw-virtio"; \ 794 mc->is_default = true; \ 795 } \ 796 } \ 797 static void ccw_machine_##suffix##_instance_init(Object *obj) \ 798 { \ 799 MachineState *machine = MACHINE(obj); \ 800 current_mc = S390_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \ 801 ccw_machine_##suffix##_instance_options(machine); \ 802 } \ 803 static const TypeInfo ccw_machine_##suffix##_info = { \ 804 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \ 805 .parent = TYPE_S390_CCW_MACHINE, \ 806 .class_init = ccw_machine_##suffix##_class_init, \ 807 .instance_init = ccw_machine_##suffix##_instance_init, \ 808 }; \ 809 static void ccw_machine_register_##suffix(void) \ 810 { \ 811 type_register_static(&ccw_machine_##suffix##_info); \ 812 } \ 813 type_init(ccw_machine_register_##suffix) 814 815 static void ccw_machine_5_0_instance_options(MachineState *machine) 816 { 817 } 818 819 static void ccw_machine_5_0_class_options(MachineClass *mc) 820 { 821 } 822 DEFINE_CCW_MACHINE(5_0, "5.0", true); 823 824 static void ccw_machine_4_2_instance_options(MachineState *machine) 825 { 826 ccw_machine_5_0_instance_options(machine); 827 } 828 829 static void ccw_machine_4_2_class_options(MachineClass *mc) 830 { 831 ccw_machine_5_0_class_options(mc); 832 mc->fixup_ram_size = s390_fixup_ram_size; 833 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 834 } 835 DEFINE_CCW_MACHINE(4_2, "4.2", false); 836 837 static void ccw_machine_4_1_instance_options(MachineState *machine) 838 { 839 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 }; 840 ccw_machine_4_2_instance_options(machine); 841 s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat); 842 } 843 844 static void ccw_machine_4_1_class_options(MachineClass *mc) 845 { 846 ccw_machine_4_2_class_options(mc); 847 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 848 } 849 DEFINE_CCW_MACHINE(4_1, "4.1", false); 850 851 static void ccw_machine_4_0_instance_options(MachineState *machine) 852 { 853 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 }; 854 ccw_machine_4_1_instance_options(machine); 855 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 856 } 857 858 static void ccw_machine_4_0_class_options(MachineClass *mc) 859 { 860 ccw_machine_4_1_class_options(mc); 861 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 862 } 863 DEFINE_CCW_MACHINE(4_0, "4.0", false); 864 865 static void ccw_machine_3_1_instance_options(MachineState *machine) 866 { 867 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 }; 868 ccw_machine_4_0_instance_options(machine); 869 s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); 870 s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); 871 s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat); 872 } 873 874 static void ccw_machine_3_1_class_options(MachineClass *mc) 875 { 876 ccw_machine_4_0_class_options(mc); 877 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 878 } 879 DEFINE_CCW_MACHINE(3_1, "3.1", false); 880 881 static void ccw_machine_3_0_instance_options(MachineState *machine) 882 { 883 ccw_machine_3_1_instance_options(machine); 884 } 885 886 static void ccw_machine_3_0_class_options(MachineClass *mc) 887 { 888 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 889 890 s390mc->hpage_1m_allowed = false; 891 ccw_machine_3_1_class_options(mc); 892 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 893 } 894 DEFINE_CCW_MACHINE(3_0, "3.0", false); 895 896 static void ccw_machine_2_12_instance_options(MachineState *machine) 897 { 898 ccw_machine_3_0_instance_options(machine); 899 s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15); 900 s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB); 901 } 902 903 static void ccw_machine_2_12_class_options(MachineClass *mc) 904 { 905 ccw_machine_3_0_class_options(mc); 906 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 907 } 908 DEFINE_CCW_MACHINE(2_12, "2.12", false); 909 910 static void ccw_machine_2_11_instance_options(MachineState *machine) 911 { 912 static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 }; 913 ccw_machine_2_12_instance_options(machine); 914 915 /* before 2.12 we emulated the very first z900 */ 916 s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat); 917 } 918 919 static void ccw_machine_2_11_class_options(MachineClass *mc) 920 { 921 static GlobalProperty compat[] = { 922 { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", }, 923 }; 924 925 ccw_machine_2_12_class_options(mc); 926 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 927 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 928 } 929 DEFINE_CCW_MACHINE(2_11, "2.11", false); 930 931 static void ccw_machine_2_10_instance_options(MachineState *machine) 932 { 933 ccw_machine_2_11_instance_options(machine); 934 } 935 936 static void ccw_machine_2_10_class_options(MachineClass *mc) 937 { 938 ccw_machine_2_11_class_options(mc); 939 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 940 } 941 DEFINE_CCW_MACHINE(2_10, "2.10", false); 942 943 static void ccw_machine_2_9_instance_options(MachineState *machine) 944 { 945 ccw_machine_2_10_instance_options(machine); 946 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP); 947 s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2); 948 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI); 949 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION); 950 s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION); 951 } 952 953 static void ccw_machine_2_9_class_options(MachineClass *mc) 954 { 955 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 956 static GlobalProperty compat[] = { 957 { TYPE_S390_STATTRIB, "migration-enabled", "off", }, 958 }; 959 960 ccw_machine_2_10_class_options(mc); 961 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 962 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 963 s390mc->css_migration_enabled = false; 964 } 965 DEFINE_CCW_MACHINE(2_9, "2.9", false); 966 967 static void ccw_machine_2_8_instance_options(MachineState *machine) 968 { 969 ccw_machine_2_9_instance_options(machine); 970 } 971 972 static void ccw_machine_2_8_class_options(MachineClass *mc) 973 { 974 static GlobalProperty compat[] = { 975 { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", }, 976 }; 977 978 ccw_machine_2_9_class_options(mc); 979 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 980 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 981 } 982 DEFINE_CCW_MACHINE(2_8, "2.8", false); 983 984 static void ccw_machine_2_7_instance_options(MachineState *machine) 985 { 986 ccw_machine_2_8_instance_options(machine); 987 } 988 989 static void ccw_machine_2_7_class_options(MachineClass *mc) 990 { 991 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 992 993 s390mc->cpu_model_allowed = false; 994 ccw_machine_2_8_class_options(mc); 995 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 996 } 997 DEFINE_CCW_MACHINE(2_7, "2.7", false); 998 999 static void ccw_machine_2_6_instance_options(MachineState *machine) 1000 { 1001 ccw_machine_2_7_instance_options(machine); 1002 } 1003 1004 static void ccw_machine_2_6_class_options(MachineClass *mc) 1005 { 1006 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc); 1007 static GlobalProperty compat[] = { 1008 { TYPE_S390_IPL, "iplbext_migration", "off", }, 1009 { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", }, 1010 }; 1011 1012 s390mc->ri_allowed = false; 1013 ccw_machine_2_7_class_options(mc); 1014 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 1015 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1016 } 1017 DEFINE_CCW_MACHINE(2_6, "2.6", false); 1018 1019 static void ccw_machine_2_5_instance_options(MachineState *machine) 1020 { 1021 ccw_machine_2_6_instance_options(machine); 1022 } 1023 1024 static void ccw_machine_2_5_class_options(MachineClass *mc) 1025 { 1026 ccw_machine_2_6_class_options(mc); 1027 compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len); 1028 } 1029 DEFINE_CCW_MACHINE(2_5, "2.5", false); 1030 1031 static void ccw_machine_2_4_instance_options(MachineState *machine) 1032 { 1033 ccw_machine_2_5_instance_options(machine); 1034 } 1035 1036 static void ccw_machine_2_4_class_options(MachineClass *mc) 1037 { 1038 static GlobalProperty compat[] = { 1039 { TYPE_S390_SKEYS, "migration-enabled", "off", }, 1040 { "virtio-blk-ccw", "max_revision", "0", }, 1041 { "virtio-balloon-ccw", "max_revision", "0", }, 1042 { "virtio-serial-ccw", "max_revision", "0", }, 1043 { "virtio-9p-ccw", "max_revision", "0", }, 1044 { "virtio-rng-ccw", "max_revision", "0", }, 1045 { "virtio-net-ccw", "max_revision", "0", }, 1046 { "virtio-scsi-ccw", "max_revision", "0", }, 1047 { "vhost-scsi-ccw", "max_revision", "0", }, 1048 }; 1049 1050 ccw_machine_2_5_class_options(mc); 1051 compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len); 1052 compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat)); 1053 } 1054 DEFINE_CCW_MACHINE(2_4, "2.4", false); 1055 1056 static void ccw_machine_register_types(void) 1057 { 1058 type_register_static(&ccw_machine_info); 1059 } 1060 1061 type_init(ccw_machine_register_types) 1062