1 /* 2 * CPU models for s390x 3 * 4 * Copyright 2016 IBM Corp. 5 * 6 * Author(s): David Hildenbrand <dahi@linux.vnet.ibm.com> 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or (at 9 * your option) any later version. See the COPYING file in the top-level 10 * directory. 11 */ 12 13 #include "qemu/osdep.h" 14 #include "cpu.h" 15 #include "internal.h" 16 #include "kvm_s390x.h" 17 #include "sysemu/kvm.h" 18 #include "qapi/error.h" 19 #include "qapi/visitor.h" 20 #include "qemu/error-report.h" 21 #include "qapi/qmp/qerror.h" 22 #include "qapi/qobject-input-visitor.h" 23 #include "qapi/qmp/qdict.h" 24 #ifndef CONFIG_USER_ONLY 25 #include "sysemu/arch_init.h" 26 #include "hw/pci/pci.h" 27 #endif 28 29 #define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \ 30 { \ 31 .name = _name, \ 32 .type = _type, \ 33 .gen = _gen, \ 34 .ec_ga = _ec_ga, \ 35 .mha_pow = _mha_pow, \ 36 .hmfai = _hmfai, \ 37 .desc = _desc, \ 38 .base_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _BASE }, \ 39 .default_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _DEFAULT }, \ 40 .full_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _FULL }, \ 41 } 42 43 /* 44 * CPU definiton list in order of release. For now, base features of a 45 * following release are always a subset of base features of the previous 46 * release. Same is correct for the other feature sets. 47 * A BC release always follows the corresponding EC release. 48 */ 49 static S390CPUDef s390_cpu_defs[] = { 50 CPUDEF_INIT(0x2064, 7, 1, 38, 0x00000000U, "z900", "IBM zSeries 900 GA1"), 51 CPUDEF_INIT(0x2064, 7, 2, 38, 0x00000000U, "z900.2", "IBM zSeries 900 GA2"), 52 CPUDEF_INIT(0x2064, 7, 3, 38, 0x00000000U, "z900.3", "IBM zSeries 900 GA3"), 53 CPUDEF_INIT(0x2066, 7, 3, 38, 0x00000000U, "z800", "IBM zSeries 800 GA1"), 54 CPUDEF_INIT(0x2084, 8, 1, 38, 0x00000000U, "z990", "IBM zSeries 990 GA1"), 55 CPUDEF_INIT(0x2084, 8, 2, 38, 0x00000000U, "z990.2", "IBM zSeries 990 GA2"), 56 CPUDEF_INIT(0x2084, 8, 3, 38, 0x00000000U, "z990.3", "IBM zSeries 990 GA3"), 57 CPUDEF_INIT(0x2086, 8, 3, 38, 0x00000000U, "z890", "IBM zSeries 880 GA1"), 58 CPUDEF_INIT(0x2084, 8, 4, 38, 0x00000000U, "z990.4", "IBM zSeries 990 GA4"), 59 CPUDEF_INIT(0x2086, 8, 4, 38, 0x00000000U, "z890.2", "IBM zSeries 880 GA2"), 60 CPUDEF_INIT(0x2084, 8, 5, 38, 0x00000000U, "z990.5", "IBM zSeries 990 GA5"), 61 CPUDEF_INIT(0x2086, 8, 5, 38, 0x00000000U, "z890.3", "IBM zSeries 880 GA3"), 62 CPUDEF_INIT(0x2094, 9, 1, 40, 0x00000000U, "z9EC", "IBM System z9 EC GA1"), 63 CPUDEF_INIT(0x2094, 9, 2, 40, 0x00000000U, "z9EC.2", "IBM System z9 EC GA2"), 64 CPUDEF_INIT(0x2096, 9, 2, 40, 0x00000000U, "z9BC", "IBM System z9 BC GA1"), 65 CPUDEF_INIT(0x2094, 9, 3, 40, 0x00000000U, "z9EC.3", "IBM System z9 EC GA3"), 66 CPUDEF_INIT(0x2096, 9, 3, 40, 0x00000000U, "z9BC.2", "IBM System z9 BC GA2"), 67 CPUDEF_INIT(0x2097, 10, 1, 43, 0x00000000U, "z10EC", "IBM System z10 EC GA1"), 68 CPUDEF_INIT(0x2097, 10, 2, 43, 0x00000000U, "z10EC.2", "IBM System z10 EC GA2"), 69 CPUDEF_INIT(0x2098, 10, 2, 43, 0x00000000U, "z10BC", "IBM System z10 BC GA1"), 70 CPUDEF_INIT(0x2097, 10, 3, 43, 0x00000000U, "z10EC.3", "IBM System z10 EC GA3"), 71 CPUDEF_INIT(0x2098, 10, 3, 43, 0x00000000U, "z10BC.2", "IBM System z10 BC GA2"), 72 CPUDEF_INIT(0x2817, 11, 1, 44, 0x08000000U, "z196", "IBM zEnterprise 196 GA1"), 73 CPUDEF_INIT(0x2817, 11, 2, 44, 0x08000000U, "z196.2", "IBM zEnterprise 196 GA2"), 74 CPUDEF_INIT(0x2818, 11, 2, 44, 0x08000000U, "z114", "IBM zEnterprise 114 GA1"), 75 CPUDEF_INIT(0x2827, 12, 1, 44, 0x08000000U, "zEC12", "IBM zEnterprise EC12 GA1"), 76 CPUDEF_INIT(0x2827, 12, 2, 44, 0x08000000U, "zEC12.2", "IBM zEnterprise EC12 GA2"), 77 CPUDEF_INIT(0x2828, 12, 2, 44, 0x08000000U, "zBC12", "IBM zEnterprise BC12 GA1"), 78 CPUDEF_INIT(0x2964, 13, 1, 47, 0x08000000U, "z13", "IBM z13 GA1"), 79 CPUDEF_INIT(0x2964, 13, 2, 47, 0x08000000U, "z13.2", "IBM z13 GA2"), 80 CPUDEF_INIT(0x2965, 13, 2, 47, 0x08000000U, "z13s", "IBM z13s GA1"), 81 CPUDEF_INIT(0x3906, 14, 1, 47, 0x08000000U, "z14", "IBM z14 GA1"), 82 CPUDEF_INIT(0x3907, 14, 1, 47, 0x08000000U, "z14ZR1", "IBM z14 Model ZR1 GA1"), 83 }; 84 85 #define QEMU_MAX_CPU_TYPE 0x2827 86 #define QEMU_MAX_CPU_GEN 12 87 #define QEMU_MAX_CPU_EC_GA 2 88 static const S390FeatInit qemu_max_cpu_feat_init = { S390_FEAT_LIST_QEMU_MAX }; 89 static S390FeatBitmap qemu_max_cpu_feat; 90 91 /* features part of a base model but not relevant for finding a base model */ 92 S390FeatBitmap ignored_base_feat; 93 94 void s390_cpudef_featoff(uint8_t gen, uint8_t ec_ga, S390Feat feat) 95 { 96 const S390CPUDef *def; 97 98 def = s390_find_cpu_def(0, gen, ec_ga, NULL); 99 clear_bit(feat, (unsigned long *)&def->default_feat); 100 } 101 102 void s390_cpudef_featoff_greater(uint8_t gen, uint8_t ec_ga, S390Feat feat) 103 { 104 int i; 105 106 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 107 const S390CPUDef *def = &s390_cpu_defs[i]; 108 109 if (def->gen < gen) { 110 continue; 111 } 112 if (def->gen == gen && def->ec_ga < ec_ga) { 113 continue; 114 } 115 116 clear_bit(feat, (unsigned long *)&def->default_feat); 117 } 118 } 119 120 uint32_t s390_get_hmfai(void) 121 { 122 static S390CPU *cpu; 123 124 if (!cpu) { 125 cpu = S390_CPU(qemu_get_cpu(0)); 126 } 127 128 if (!cpu || !cpu->model) { 129 return 0; 130 } 131 return cpu->model->def->hmfai; 132 } 133 134 uint8_t s390_get_mha_pow(void) 135 { 136 static S390CPU *cpu; 137 138 if (!cpu) { 139 cpu = S390_CPU(qemu_get_cpu(0)); 140 } 141 142 if (!cpu || !cpu->model) { 143 return 0; 144 } 145 return cpu->model->def->mha_pow; 146 } 147 148 uint32_t s390_get_ibc_val(void) 149 { 150 uint16_t unblocked_ibc, lowest_ibc; 151 static S390CPU *cpu; 152 153 if (!cpu) { 154 cpu = S390_CPU(qemu_get_cpu(0)); 155 } 156 157 if (!cpu || !cpu->model) { 158 return 0; 159 } 160 unblocked_ibc = s390_ibc_from_cpu_model(cpu->model); 161 lowest_ibc = cpu->model->lowest_ibc; 162 /* the lowest_ibc always has to be <= unblocked_ibc */ 163 if (!lowest_ibc || lowest_ibc > unblocked_ibc) { 164 return 0; 165 } 166 return ((uint32_t) lowest_ibc << 16) | unblocked_ibc; 167 } 168 169 void s390_get_feat_block(S390FeatType type, uint8_t *data) 170 { 171 static S390CPU *cpu; 172 173 if (!cpu) { 174 cpu = S390_CPU(qemu_get_cpu(0)); 175 } 176 177 if (!cpu || !cpu->model) { 178 return; 179 } 180 s390_fill_feat_block(cpu->model->features, type, data); 181 } 182 183 bool s390_has_feat(S390Feat feat) 184 { 185 static S390CPU *cpu; 186 187 if (!cpu) { 188 cpu = S390_CPU(qemu_get_cpu(0)); 189 } 190 191 if (!cpu || !cpu->model) { 192 #ifdef CONFIG_KVM 193 if (kvm_enabled()) { 194 if (feat == S390_FEAT_VECTOR) { 195 return kvm_check_extension(kvm_state, 196 KVM_CAP_S390_VECTOR_REGISTERS); 197 } 198 if (feat == S390_FEAT_RUNTIME_INSTRUMENTATION) { 199 return kvm_s390_get_ri(); 200 } 201 if (feat == S390_FEAT_MSA_EXT_3) { 202 return true; 203 } 204 } 205 #endif 206 if (feat == S390_FEAT_ZPCI) { 207 return true; 208 } 209 return 0; 210 } 211 return test_bit(feat, cpu->model->features); 212 } 213 214 uint8_t s390_get_gen_for_cpu_type(uint16_t type) 215 { 216 int i; 217 218 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 219 if (s390_cpu_defs[i].type == type) { 220 return s390_cpu_defs[i].gen; 221 } 222 } 223 return 0; 224 } 225 226 const S390CPUDef *s390_find_cpu_def(uint16_t type, uint8_t gen, uint8_t ec_ga, 227 S390FeatBitmap features) 228 { 229 const S390CPUDef *last_compatible = NULL; 230 const S390CPUDef *matching_cpu_type = NULL; 231 int i; 232 233 if (!gen) { 234 ec_ga = 0; 235 } 236 if (!gen && type) { 237 gen = s390_get_gen_for_cpu_type(type); 238 } 239 240 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 241 const S390CPUDef *def = &s390_cpu_defs[i]; 242 S390FeatBitmap missing; 243 244 /* don't even try newer generations if we know the generation */ 245 if (gen) { 246 if (def->gen > gen) { 247 break; 248 } else if (def->gen == gen && ec_ga && def->ec_ga > ec_ga) { 249 break; 250 } 251 } 252 253 if (features) { 254 /* see if the model satisfies the minimum features */ 255 bitmap_andnot(missing, def->base_feat, features, S390_FEAT_MAX); 256 /* 257 * Ignore certain features that are in the base model, but not 258 * relevant for the search (esp. MSA subfunctions). 259 */ 260 bitmap_andnot(missing, missing, ignored_base_feat, S390_FEAT_MAX); 261 if (!bitmap_empty(missing, S390_FEAT_MAX)) { 262 break; 263 } 264 } 265 266 /* stop the search if we found the exact model */ 267 if (def->type == type && def->ec_ga == ec_ga) { 268 return def; 269 } 270 /* remember if we've at least seen one with the same cpu type */ 271 if (def->type == type) { 272 matching_cpu_type = def; 273 } 274 last_compatible = def; 275 } 276 /* prefer the model with the same cpu type, esp. don't take the BC for EC */ 277 if (matching_cpu_type) { 278 return matching_cpu_type; 279 } 280 return last_compatible; 281 } 282 283 static void s390_print_cpu_model_list_entry(gpointer data, gpointer user_data) 284 { 285 CPUListState *s = user_data; 286 const S390CPUClass *scc = S390_CPU_CLASS((ObjectClass *)data); 287 char *name = g_strdup(object_class_get_name((ObjectClass *)data)); 288 const char *details = ""; 289 290 if (scc->is_static) { 291 details = "(static, migration-safe)"; 292 } else if (scc->is_migration_safe) { 293 details = "(migration-safe)"; 294 } 295 296 /* strip off the -s390x-cpu */ 297 g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; 298 (*s->cpu_fprintf)(s->file, "s390 %-15s %-35s %s\n", name, scc->desc, 299 details); 300 g_free(name); 301 } 302 303 static gint s390_cpu_list_compare(gconstpointer a, gconstpointer b) 304 { 305 const S390CPUClass *cc_a = S390_CPU_CLASS((ObjectClass *)a); 306 const S390CPUClass *cc_b = S390_CPU_CLASS((ObjectClass *)b); 307 const char *name_a = object_class_get_name((ObjectClass *)a); 308 const char *name_b = object_class_get_name((ObjectClass *)b); 309 310 /* move qemu and host to the top of the list, qemu first, host second */ 311 if (name_a[0] == 'q') { 312 return -1; 313 } else if (name_b[0] == 'q') { 314 return 1; 315 } else if (name_a[0] == 'h') { 316 return -1; 317 } else if (name_b[0] == 'h') { 318 return 1; 319 } 320 321 /* keep the same order we have in our table (sorted by release date) */ 322 if (cc_a->cpu_def != cc_b->cpu_def) { 323 return cc_a->cpu_def - cc_b->cpu_def; 324 } 325 326 /* exact same definition - list base model first */ 327 return cc_a->is_static ? -1 : 1; 328 } 329 330 void s390_cpu_list(FILE *f, fprintf_function print) 331 { 332 CPUListState s = { 333 .file = f, 334 .cpu_fprintf = print, 335 }; 336 S390FeatGroup group; 337 S390Feat feat; 338 GSList *list; 339 340 list = object_class_get_list(TYPE_S390_CPU, false); 341 list = g_slist_sort(list, s390_cpu_list_compare); 342 g_slist_foreach(list, s390_print_cpu_model_list_entry, &s); 343 g_slist_free(list); 344 345 (*print)(f, "\nRecognized feature flags:\n"); 346 for (feat = 0; feat < S390_FEAT_MAX; feat++) { 347 const S390FeatDef *def = s390_feat_def(feat); 348 349 (*print)(f, "%-20s %-50s\n", def->name, def->desc); 350 } 351 352 (*print)(f, "\nRecognized feature groups:\n"); 353 for (group = 0; group < S390_FEAT_GROUP_MAX; group++) { 354 const S390FeatGroupDef *def = s390_feat_group_def(group); 355 356 (*print)(f, "%-20s %-50s\n", def->name, def->desc); 357 } 358 } 359 360 static S390CPUModel *get_max_cpu_model(Error **errp); 361 362 #ifndef CONFIG_USER_ONLY 363 static void list_add_feat(const char *name, void *opaque); 364 365 static void check_unavailable_features(const S390CPUModel *max_model, 366 const S390CPUModel *model, 367 strList **unavailable) 368 { 369 S390FeatBitmap missing; 370 371 /* check general model compatibility */ 372 if (max_model->def->gen < model->def->gen || 373 (max_model->def->gen == model->def->gen && 374 max_model->def->ec_ga < model->def->ec_ga)) { 375 list_add_feat("type", unavailable); 376 } 377 378 /* detect missing features if any to properly report them */ 379 bitmap_andnot(missing, model->features, max_model->features, 380 S390_FEAT_MAX); 381 if (!bitmap_empty(missing, S390_FEAT_MAX)) { 382 s390_feat_bitmap_to_ascii(missing, unavailable, list_add_feat); 383 } 384 } 385 386 struct CpuDefinitionInfoListData { 387 CpuDefinitionInfoList *list; 388 S390CPUModel *model; 389 }; 390 391 static void create_cpu_model_list(ObjectClass *klass, void *opaque) 392 { 393 struct CpuDefinitionInfoListData *cpu_list_data = opaque; 394 CpuDefinitionInfoList **cpu_list = &cpu_list_data->list; 395 CpuDefinitionInfoList *entry; 396 CpuDefinitionInfo *info; 397 char *name = g_strdup(object_class_get_name(klass)); 398 S390CPUClass *scc = S390_CPU_CLASS(klass); 399 400 /* strip off the -s390x-cpu */ 401 g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; 402 info = g_new0(CpuDefinitionInfo, 1); 403 info->name = name; 404 info->has_migration_safe = true; 405 info->migration_safe = scc->is_migration_safe; 406 info->q_static = scc->is_static; 407 info->q_typename = g_strdup(object_class_get_name(klass)); 408 /* check for unavailable features */ 409 if (cpu_list_data->model) { 410 Object *obj; 411 S390CPU *sc; 412 obj = object_new(object_class_get_name(klass)); 413 sc = S390_CPU(obj); 414 if (sc->model) { 415 info->has_unavailable_features = true; 416 check_unavailable_features(cpu_list_data->model, sc->model, 417 &info->unavailable_features); 418 } 419 object_unref(obj); 420 } 421 422 entry = g_new0(CpuDefinitionInfoList, 1); 423 entry->value = info; 424 entry->next = *cpu_list; 425 *cpu_list = entry; 426 } 427 428 CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp) 429 { 430 struct CpuDefinitionInfoListData list_data = { 431 .list = NULL, 432 }; 433 434 list_data.model = get_max_cpu_model(errp); 435 if (*errp) { 436 error_free(*errp); 437 *errp = NULL; 438 } 439 440 object_class_foreach(create_cpu_model_list, TYPE_S390_CPU, false, 441 &list_data); 442 443 return list_data.list; 444 } 445 446 static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info, 447 Error **errp) 448 { 449 const QDict *qdict = NULL; 450 const QDictEntry *e; 451 Visitor *visitor; 452 ObjectClass *oc; 453 S390CPU *cpu; 454 Object *obj; 455 456 if (info->props) { 457 qdict = qobject_to(QDict, info->props); 458 if (!qdict) { 459 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); 460 return; 461 } 462 } 463 464 oc = cpu_class_by_name(TYPE_S390_CPU, info->name); 465 if (!oc) { 466 error_setg(errp, "The CPU definition \'%s\' is unknown.", info->name); 467 return; 468 } 469 if (S390_CPU_CLASS(oc)->kvm_required && !kvm_enabled()) { 470 error_setg(errp, "The CPU definition '%s' requires KVM", info->name); 471 return; 472 } 473 obj = object_new(object_class_get_name(oc)); 474 cpu = S390_CPU(obj); 475 476 if (!cpu->model) { 477 error_setg(errp, "Details about the host CPU model are not available, " 478 "it cannot be used."); 479 object_unref(obj); 480 return; 481 } 482 483 if (qdict) { 484 visitor = qobject_input_visitor_new(info->props); 485 visit_start_struct(visitor, NULL, NULL, 0, errp); 486 if (*errp) { 487 object_unref(obj); 488 return; 489 } 490 for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) { 491 object_property_set(obj, visitor, e->key, errp); 492 if (*errp) { 493 break; 494 } 495 } 496 if (!*errp) { 497 visit_check_struct(visitor, errp); 498 } 499 visit_end_struct(visitor, NULL); 500 visit_free(visitor); 501 if (*errp) { 502 object_unref(obj); 503 return; 504 } 505 } 506 507 /* copy the model and throw the cpu away */ 508 memcpy(model, cpu->model, sizeof(*model)); 509 object_unref(obj); 510 } 511 512 static void qdict_add_disabled_feat(const char *name, void *opaque) 513 { 514 qdict_put_bool(opaque, name, false); 515 } 516 517 static void qdict_add_enabled_feat(const char *name, void *opaque) 518 { 519 qdict_put_bool(opaque, name, true); 520 } 521 522 /* convert S390CPUDef into a static CpuModelInfo */ 523 static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model, 524 bool delta_changes) 525 { 526 QDict *qdict = qdict_new(); 527 S390FeatBitmap bitmap; 528 529 /* always fallback to the static base model */ 530 info->name = g_strdup_printf("%s-base", model->def->name); 531 532 if (delta_changes) { 533 /* features deleted from the base feature set */ 534 bitmap_andnot(bitmap, model->def->base_feat, model->features, 535 S390_FEAT_MAX); 536 if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { 537 s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); 538 } 539 540 /* features added to the base feature set */ 541 bitmap_andnot(bitmap, model->features, model->def->base_feat, 542 S390_FEAT_MAX); 543 if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { 544 s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_enabled_feat); 545 } 546 } else { 547 /* expand all features */ 548 s390_feat_bitmap_to_ascii(model->features, qdict, 549 qdict_add_enabled_feat); 550 bitmap_complement(bitmap, model->features, S390_FEAT_MAX); 551 s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); 552 } 553 554 if (!qdict_size(qdict)) { 555 qobject_unref(qdict); 556 } else { 557 info->props = QOBJECT(qdict); 558 info->has_props = true; 559 } 560 } 561 562 CpuModelExpansionInfo *arch_query_cpu_model_expansion(CpuModelExpansionType type, 563 CpuModelInfo *model, 564 Error **errp) 565 { 566 CpuModelExpansionInfo *expansion_info = NULL; 567 S390CPUModel s390_model; 568 bool delta_changes = false; 569 570 /* convert it to our internal representation */ 571 cpu_model_from_info(&s390_model, model, errp); 572 if (*errp) { 573 return NULL; 574 } 575 576 if (type == CPU_MODEL_EXPANSION_TYPE_STATIC) { 577 delta_changes = true; 578 } else if (type != CPU_MODEL_EXPANSION_TYPE_FULL) { 579 error_setg(errp, "The requested expansion type is not supported."); 580 return NULL; 581 } 582 583 /* convert it back to a static representation */ 584 expansion_info = g_new0(CpuModelExpansionInfo, 1); 585 expansion_info->model = g_malloc0(sizeof(*expansion_info->model)); 586 cpu_info_from_model(expansion_info->model, &s390_model, delta_changes); 587 return expansion_info; 588 } 589 590 static void list_add_feat(const char *name, void *opaque) 591 { 592 strList **last = (strList **) opaque; 593 strList *entry; 594 595 entry = g_new0(strList, 1); 596 entry->value = g_strdup(name); 597 entry->next = *last; 598 *last = entry; 599 } 600 601 CpuModelCompareInfo *arch_query_cpu_model_comparison(CpuModelInfo *infoa, 602 CpuModelInfo *infob, 603 Error **errp) 604 { 605 CpuModelCompareResult feat_result, gen_result; 606 CpuModelCompareInfo *compare_info; 607 S390FeatBitmap missing, added; 608 S390CPUModel modela, modelb; 609 610 /* convert both models to our internal representation */ 611 cpu_model_from_info(&modela, infoa, errp); 612 if (*errp) { 613 return NULL; 614 } 615 cpu_model_from_info(&modelb, infob, errp); 616 if (*errp) { 617 return NULL; 618 } 619 compare_info = g_new0(CpuModelCompareInfo, 1); 620 621 /* check the cpu generation and ga level */ 622 if (modela.def->gen == modelb.def->gen) { 623 if (modela.def->ec_ga == modelb.def->ec_ga) { 624 /* ec and corresponding bc are identical */ 625 gen_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL; 626 } else if (modela.def->ec_ga < modelb.def->ec_ga) { 627 gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET; 628 } else { 629 gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; 630 } 631 } else if (modela.def->gen < modelb.def->gen) { 632 gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET; 633 } else { 634 gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; 635 } 636 if (gen_result != CPU_MODEL_COMPARE_RESULT_IDENTICAL) { 637 /* both models cannot be made identical */ 638 list_add_feat("type", &compare_info->responsible_properties); 639 } 640 641 /* check the feature set */ 642 if (bitmap_equal(modela.features, modelb.features, S390_FEAT_MAX)) { 643 feat_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL; 644 } else { 645 bitmap_andnot(missing, modela.features, modelb.features, S390_FEAT_MAX); 646 s390_feat_bitmap_to_ascii(missing, 647 &compare_info->responsible_properties, 648 list_add_feat); 649 bitmap_andnot(added, modelb.features, modela.features, S390_FEAT_MAX); 650 s390_feat_bitmap_to_ascii(added, &compare_info->responsible_properties, 651 list_add_feat); 652 if (bitmap_empty(missing, S390_FEAT_MAX)) { 653 feat_result = CPU_MODEL_COMPARE_RESULT_SUBSET; 654 } else if (bitmap_empty(added, S390_FEAT_MAX)) { 655 feat_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; 656 } else { 657 feat_result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE; 658 } 659 } 660 661 /* combine the results */ 662 if (gen_result == feat_result) { 663 compare_info->result = gen_result; 664 } else if (feat_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) { 665 compare_info->result = gen_result; 666 } else if (gen_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) { 667 compare_info->result = feat_result; 668 } else { 669 compare_info->result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE; 670 } 671 return compare_info; 672 } 673 674 CpuModelBaselineInfo *arch_query_cpu_model_baseline(CpuModelInfo *infoa, 675 CpuModelInfo *infob, 676 Error **errp) 677 { 678 CpuModelBaselineInfo *baseline_info; 679 S390CPUModel modela, modelb, model; 680 uint16_t cpu_type; 681 uint8_t max_gen_ga; 682 uint8_t max_gen; 683 684 /* convert both models to our internal representation */ 685 cpu_model_from_info(&modela, infoa, errp); 686 if (*errp) { 687 return NULL; 688 } 689 690 cpu_model_from_info(&modelb, infob, errp); 691 if (*errp) { 692 return NULL; 693 } 694 695 /* features both models support */ 696 bitmap_and(model.features, modela.features, modelb.features, S390_FEAT_MAX); 697 698 /* detect the maximum model not regarding features */ 699 if (modela.def->gen == modelb.def->gen) { 700 if (modela.def->type == modelb.def->type) { 701 cpu_type = modela.def->type; 702 } else { 703 cpu_type = 0; 704 } 705 max_gen = modela.def->gen; 706 max_gen_ga = MIN(modela.def->ec_ga, modelb.def->ec_ga); 707 } else if (modela.def->gen > modelb.def->gen) { 708 cpu_type = modelb.def->type; 709 max_gen = modelb.def->gen; 710 max_gen_ga = modelb.def->ec_ga; 711 } else { 712 cpu_type = modela.def->type; 713 max_gen = modela.def->gen; 714 max_gen_ga = modela.def->ec_ga; 715 } 716 717 model.def = s390_find_cpu_def(cpu_type, max_gen, max_gen_ga, 718 model.features); 719 /* strip off features not part of the max model */ 720 bitmap_and(model.features, model.features, model.def->full_feat, 721 S390_FEAT_MAX); 722 723 baseline_info = g_new0(CpuModelBaselineInfo, 1); 724 baseline_info->model = g_malloc0(sizeof(*baseline_info->model)); 725 cpu_info_from_model(baseline_info->model, &model, true); 726 return baseline_info; 727 } 728 #endif 729 730 static void check_consistency(const S390CPUModel *model) 731 { 732 static int dep[][2] = { 733 { S390_FEAT_IPTE_RANGE, S390_FEAT_DAT_ENH }, 734 { S390_FEAT_IDTE_SEGMENT, S390_FEAT_DAT_ENH }, 735 { S390_FEAT_IDTE_REGION, S390_FEAT_DAT_ENH }, 736 { S390_FEAT_IDTE_REGION, S390_FEAT_IDTE_SEGMENT }, 737 { S390_FEAT_LOCAL_TLB_CLEARING, S390_FEAT_DAT_ENH}, 738 { S390_FEAT_LONG_DISPLACEMENT_FAST, S390_FEAT_LONG_DISPLACEMENT }, 739 { S390_FEAT_DFP_FAST, S390_FEAT_DFP }, 740 { S390_FEAT_TRANSACTIONAL_EXE, S390_FEAT_STFLE_49 }, 741 { S390_FEAT_EDAT_2, S390_FEAT_EDAT}, 742 { S390_FEAT_MSA_EXT_5, S390_FEAT_KIMD_SHA_512 }, 743 { S390_FEAT_MSA_EXT_5, S390_FEAT_KLMD_SHA_512 }, 744 { S390_FEAT_MSA_EXT_4, S390_FEAT_MSA_EXT_3 }, 745 { S390_FEAT_SIE_CMMA, S390_FEAT_CMM }, 746 { S390_FEAT_SIE_CMMA, S390_FEAT_SIE_GSLS }, 747 { S390_FEAT_SIE_PFMFI, S390_FEAT_EDAT }, 748 { S390_FEAT_MSA_EXT_8, S390_FEAT_MSA_EXT_3 }, 749 { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_TOD_CLOCK_STEERING }, 750 { S390_FEAT_VECTOR_PACKED_DECIMAL, S390_FEAT_VECTOR }, 751 { S390_FEAT_VECTOR_ENH, S390_FEAT_VECTOR }, 752 { S390_FEAT_INSTRUCTION_EXEC_PROT, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2 }, 753 { S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2, S390_FEAT_ESOP }, 754 { S390_FEAT_CMM_NT, S390_FEAT_CMM }, 755 { S390_FEAT_GUARDED_STORAGE, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2 }, 756 { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_STORE_CLOCK_FAST }, 757 { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_TOD_CLOCK_STEERING }, 758 { S390_FEAT_SEMAPHORE_ASSIST, S390_FEAT_STFLE_49 }, 759 { S390_FEAT_KIMD_SHA3_224, S390_FEAT_MSA }, 760 { S390_FEAT_KIMD_SHA3_256, S390_FEAT_MSA }, 761 { S390_FEAT_KIMD_SHA3_384, S390_FEAT_MSA }, 762 { S390_FEAT_KIMD_SHA3_512, S390_FEAT_MSA }, 763 { S390_FEAT_KIMD_SHAKE_128, S390_FEAT_MSA }, 764 { S390_FEAT_KIMD_SHAKE_256, S390_FEAT_MSA }, 765 { S390_FEAT_KLMD_SHA3_224, S390_FEAT_MSA }, 766 { S390_FEAT_KLMD_SHA3_256, S390_FEAT_MSA }, 767 { S390_FEAT_KLMD_SHA3_384, S390_FEAT_MSA }, 768 { S390_FEAT_KLMD_SHA3_512, S390_FEAT_MSA }, 769 { S390_FEAT_KLMD_SHAKE_128, S390_FEAT_MSA }, 770 { S390_FEAT_KLMD_SHAKE_256, S390_FEAT_MSA }, 771 { S390_FEAT_PRNO_TRNG_QRTCR, S390_FEAT_MSA_EXT_5 }, 772 { S390_FEAT_PRNO_TRNG, S390_FEAT_MSA_EXT_5 }, 773 { S390_FEAT_SIE_KSS, S390_FEAT_SIE_F2 }, 774 }; 775 int i; 776 777 for (i = 0; i < ARRAY_SIZE(dep); i++) { 778 if (test_bit(dep[i][0], model->features) && 779 !test_bit(dep[i][1], model->features)) { 780 warn_report("\'%s\' requires \'%s\'.", 781 s390_feat_def(dep[i][0])->name, 782 s390_feat_def(dep[i][1])->name); 783 } 784 } 785 } 786 787 static void error_prepend_missing_feat(const char *name, void *opaque) 788 { 789 error_prepend((Error **) opaque, "%s ", name); 790 } 791 792 static void check_compatibility(const S390CPUModel *max_model, 793 const S390CPUModel *model, Error **errp) 794 { 795 S390FeatBitmap missing; 796 797 if (model->def->gen > max_model->def->gen) { 798 error_setg(errp, "Selected CPU generation is too new. Maximum " 799 "supported model in the configuration: \'%s\'", 800 max_model->def->name); 801 return; 802 } else if (model->def->gen == max_model->def->gen && 803 model->def->ec_ga > max_model->def->ec_ga) { 804 error_setg(errp, "Selected CPU GA level is too new. Maximum " 805 "supported model in the configuration: \'%s\'", 806 max_model->def->name); 807 return; 808 } 809 810 /* detect the missing features to properly report them */ 811 bitmap_andnot(missing, model->features, max_model->features, S390_FEAT_MAX); 812 if (bitmap_empty(missing, S390_FEAT_MAX)) { 813 return; 814 } 815 816 error_setg(errp, " "); 817 s390_feat_bitmap_to_ascii(missing, errp, error_prepend_missing_feat); 818 error_prepend(errp, "Some features requested in the CPU model are not " 819 "available in the configuration: "); 820 } 821 822 static S390CPUModel *get_max_cpu_model(Error **errp) 823 { 824 static S390CPUModel max_model; 825 static bool cached; 826 827 if (cached) { 828 return &max_model; 829 } 830 831 if (kvm_enabled()) { 832 kvm_s390_get_host_cpu_model(&max_model, errp); 833 } else { 834 max_model.def = s390_find_cpu_def(QEMU_MAX_CPU_TYPE, QEMU_MAX_CPU_GEN, 835 QEMU_MAX_CPU_EC_GA, NULL); 836 bitmap_copy(max_model.features, qemu_max_cpu_feat, S390_FEAT_MAX); 837 } 838 if (!*errp) { 839 cached = true; 840 return &max_model; 841 } 842 return NULL; 843 } 844 845 static inline void apply_cpu_model(const S390CPUModel *model, Error **errp) 846 { 847 #ifndef CONFIG_USER_ONLY 848 static S390CPUModel applied_model; 849 static bool applied; 850 851 /* 852 * We have the same model for all VCPUs. KVM can only be configured before 853 * any VCPUs are defined in KVM. 854 */ 855 if (applied) { 856 if (model && memcmp(&applied_model, model, sizeof(S390CPUModel))) { 857 error_setg(errp, "Mixed CPU models are not supported on s390x."); 858 } 859 return; 860 } 861 862 if (kvm_enabled()) { 863 kvm_s390_apply_cpu_model(model, errp); 864 } 865 866 if (!*errp) { 867 applied = true; 868 if (model) { 869 applied_model = *model; 870 } 871 } 872 #endif 873 } 874 875 void s390_realize_cpu_model(CPUState *cs, Error **errp) 876 { 877 S390CPUClass *xcc = S390_CPU_GET_CLASS(cs); 878 S390CPU *cpu = S390_CPU(cs); 879 const S390CPUModel *max_model; 880 881 if (xcc->kvm_required && !kvm_enabled()) { 882 error_setg(errp, "CPU definition requires KVM"); 883 return; 884 } 885 886 if (!cpu->model) { 887 /* no host model support -> perform compatibility stuff */ 888 apply_cpu_model(NULL, errp); 889 return; 890 } 891 892 max_model = get_max_cpu_model(errp); 893 if (*errp) { 894 error_prepend(errp, "CPU models are not available: "); 895 return; 896 } 897 898 /* copy over properties that can vary */ 899 cpu->model->lowest_ibc = max_model->lowest_ibc; 900 cpu->model->cpu_id = max_model->cpu_id; 901 cpu->model->cpu_id_format = max_model->cpu_id_format; 902 cpu->model->cpu_ver = max_model->cpu_ver; 903 904 check_consistency(cpu->model); 905 check_compatibility(max_model, cpu->model, errp); 906 if (*errp) { 907 return; 908 } 909 910 apply_cpu_model(cpu->model, errp); 911 912 #if !defined(CONFIG_USER_ONLY) 913 cpu->env.cpuid = s390_cpuid_from_cpu_model(cpu->model); 914 if (tcg_enabled()) { 915 /* basic mode, write the cpu address into the first 4 bit of the ID */ 916 cpu->env.cpuid = deposit64(cpu->env.cpuid, 54, 4, cpu->env.core_id); 917 } 918 #endif 919 } 920 921 static void get_feature(Object *obj, Visitor *v, const char *name, 922 void *opaque, Error **errp) 923 { 924 S390Feat feat = (S390Feat) opaque; 925 S390CPU *cpu = S390_CPU(obj); 926 bool value; 927 928 if (!cpu->model) { 929 error_setg(errp, "Details about the host CPU model are not available, " 930 "features cannot be queried."); 931 return; 932 } 933 934 value = test_bit(feat, cpu->model->features); 935 visit_type_bool(v, name, &value, errp); 936 } 937 938 static void set_feature(Object *obj, Visitor *v, const char *name, 939 void *opaque, Error **errp) 940 { 941 S390Feat feat = (S390Feat) opaque; 942 DeviceState *dev = DEVICE(obj); 943 S390CPU *cpu = S390_CPU(obj); 944 bool value; 945 946 if (dev->realized) { 947 error_setg(errp, "Attempt to set property '%s' on '%s' after " 948 "it was realized", name, object_get_typename(obj)); 949 return; 950 } else if (!cpu->model) { 951 error_setg(errp, "Details about the host CPU model are not available, " 952 "features cannot be changed."); 953 return; 954 } 955 956 visit_type_bool(v, name, &value, errp); 957 if (*errp) { 958 return; 959 } 960 if (value) { 961 if (!test_bit(feat, cpu->model->def->full_feat)) { 962 error_setg(errp, "Feature '%s' is not available for CPU model '%s'," 963 " it was introduced with later models.", 964 name, cpu->model->def->name); 965 return; 966 } 967 set_bit(feat, cpu->model->features); 968 } else { 969 clear_bit(feat, cpu->model->features); 970 } 971 } 972 973 static void get_feature_group(Object *obj, Visitor *v, const char *name, 974 void *opaque, Error **errp) 975 { 976 S390FeatGroup group = (S390FeatGroup) opaque; 977 const S390FeatGroupDef *def = s390_feat_group_def(group); 978 S390CPU *cpu = S390_CPU(obj); 979 S390FeatBitmap tmp; 980 bool value; 981 982 if (!cpu->model) { 983 error_setg(errp, "Details about the host CPU model are not available, " 984 "features cannot be queried."); 985 return; 986 } 987 988 /* a group is enabled if all features are enabled */ 989 bitmap_and(tmp, cpu->model->features, def->feat, S390_FEAT_MAX); 990 value = bitmap_equal(tmp, def->feat, S390_FEAT_MAX); 991 visit_type_bool(v, name, &value, errp); 992 } 993 994 static void set_feature_group(Object *obj, Visitor *v, const char *name, 995 void *opaque, Error **errp) 996 { 997 S390FeatGroup group = (S390FeatGroup) opaque; 998 const S390FeatGroupDef *def = s390_feat_group_def(group); 999 DeviceState *dev = DEVICE(obj); 1000 S390CPU *cpu = S390_CPU(obj); 1001 bool value; 1002 1003 if (dev->realized) { 1004 error_setg(errp, "Attempt to set property '%s' on '%s' after " 1005 "it was realized", name, object_get_typename(obj)); 1006 return; 1007 } else if (!cpu->model) { 1008 error_setg(errp, "Details about the host CPU model are not available, " 1009 "features cannot be changed."); 1010 return; 1011 } 1012 1013 visit_type_bool(v, name, &value, errp); 1014 if (*errp) { 1015 return; 1016 } 1017 if (value) { 1018 /* groups are added in one shot, so an intersect is sufficient */ 1019 if (!bitmap_intersects(def->feat, cpu->model->def->full_feat, 1020 S390_FEAT_MAX)) { 1021 error_setg(errp, "Group '%s' is not available for CPU model '%s'," 1022 " it was introduced with later models.", 1023 name, cpu->model->def->name); 1024 return; 1025 } 1026 bitmap_or(cpu->model->features, cpu->model->features, def->feat, 1027 S390_FEAT_MAX); 1028 } else { 1029 bitmap_andnot(cpu->model->features, cpu->model->features, def->feat, 1030 S390_FEAT_MAX); 1031 } 1032 } 1033 1034 void s390_cpu_model_register_props(Object *obj) 1035 { 1036 S390FeatGroup group; 1037 S390Feat feat; 1038 1039 for (feat = 0; feat < S390_FEAT_MAX; feat++) { 1040 const S390FeatDef *def = s390_feat_def(feat); 1041 object_property_add(obj, def->name, "bool", get_feature, 1042 set_feature, NULL, (void *) feat, NULL); 1043 object_property_set_description(obj, def->name, def->desc , NULL); 1044 } 1045 for (group = 0; group < S390_FEAT_GROUP_MAX; group++) { 1046 const S390FeatGroupDef *def = s390_feat_group_def(group); 1047 object_property_add(obj, def->name, "bool", get_feature_group, 1048 set_feature_group, NULL, (void *) group, NULL); 1049 object_property_set_description(obj, def->name, def->desc , NULL); 1050 } 1051 } 1052 1053 static void s390_cpu_model_initfn(Object *obj) 1054 { 1055 S390CPU *cpu = S390_CPU(obj); 1056 S390CPUClass *xcc = S390_CPU_GET_CLASS(cpu); 1057 1058 cpu->model = g_malloc0(sizeof(*cpu->model)); 1059 /* copy the model, so we can modify it */ 1060 cpu->model->def = xcc->cpu_def; 1061 if (xcc->is_static) { 1062 /* base model - features will never change */ 1063 bitmap_copy(cpu->model->features, cpu->model->def->base_feat, 1064 S390_FEAT_MAX); 1065 } else { 1066 /* latest model - features can change */ 1067 bitmap_copy(cpu->model->features, 1068 cpu->model->def->default_feat, S390_FEAT_MAX); 1069 } 1070 } 1071 1072 #ifdef CONFIG_KVM 1073 static void s390_host_cpu_model_initfn(Object *obj) 1074 { 1075 S390CPU *cpu = S390_CPU(obj); 1076 Error *err = NULL; 1077 1078 if (!kvm_enabled() || !kvm_s390_cpu_models_supported()) { 1079 return; 1080 } 1081 1082 cpu->model = g_malloc0(sizeof(*cpu->model)); 1083 kvm_s390_get_host_cpu_model(cpu->model, &err); 1084 if (err) { 1085 error_report_err(err); 1086 g_free(cpu->model); 1087 /* fallback to unsupported cpu models */ 1088 cpu->model = NULL; 1089 } 1090 } 1091 #endif 1092 1093 static S390CPUDef s390_qemu_cpu_def; 1094 static S390CPUModel s390_qemu_cpu_model; 1095 1096 /* Set the qemu CPU model (on machine initialization). Must not be called 1097 * once CPUs have been created. 1098 */ 1099 void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga, 1100 const S390FeatInit feat_init) 1101 { 1102 const S390CPUDef *def = s390_find_cpu_def(type, gen, ec_ga, NULL); 1103 1104 g_assert(def); 1105 g_assert(QTAILQ_EMPTY(&cpus)); 1106 1107 /* TCG emulates some features that can usually not be enabled with 1108 * the emulated machine generation. Make sure they can be enabled 1109 * when using the QEMU model by adding them to full_feat. We have 1110 * to copy the definition to do that. 1111 */ 1112 memcpy(&s390_qemu_cpu_def, def, sizeof(s390_qemu_cpu_def)); 1113 bitmap_or(s390_qemu_cpu_def.full_feat, s390_qemu_cpu_def.full_feat, 1114 qemu_max_cpu_feat, S390_FEAT_MAX); 1115 1116 /* build the CPU model */ 1117 s390_qemu_cpu_model.def = &s390_qemu_cpu_def; 1118 bitmap_zero(s390_qemu_cpu_model.features, S390_FEAT_MAX); 1119 s390_init_feat_bitmap(feat_init, s390_qemu_cpu_model.features); 1120 } 1121 1122 static void s390_qemu_cpu_model_initfn(Object *obj) 1123 { 1124 S390CPU *cpu = S390_CPU(obj); 1125 1126 cpu->model = g_malloc0(sizeof(*cpu->model)); 1127 /* copy the CPU model so we can modify it */ 1128 memcpy(cpu->model, &s390_qemu_cpu_model, sizeof(*cpu->model)); 1129 } 1130 1131 static void s390_cpu_model_finalize(Object *obj) 1132 { 1133 S390CPU *cpu = S390_CPU(obj); 1134 1135 g_free(cpu->model); 1136 cpu->model = NULL; 1137 } 1138 1139 static bool get_is_migration_safe(Object *obj, Error **errp) 1140 { 1141 return S390_CPU_GET_CLASS(obj)->is_migration_safe; 1142 } 1143 1144 static bool get_is_static(Object *obj, Error **errp) 1145 { 1146 return S390_CPU_GET_CLASS(obj)->is_static; 1147 } 1148 1149 static char *get_description(Object *obj, Error **errp) 1150 { 1151 return g_strdup(S390_CPU_GET_CLASS(obj)->desc); 1152 } 1153 1154 void s390_cpu_model_class_register_props(ObjectClass *oc) 1155 { 1156 object_class_property_add_bool(oc, "migration-safe", get_is_migration_safe, 1157 NULL, NULL); 1158 object_class_property_add_bool(oc, "static", get_is_static, 1159 NULL, NULL); 1160 object_class_property_add_str(oc, "description", get_description, NULL, 1161 NULL); 1162 } 1163 1164 #ifdef CONFIG_KVM 1165 static void s390_host_cpu_model_class_init(ObjectClass *oc, void *data) 1166 { 1167 S390CPUClass *xcc = S390_CPU_CLASS(oc); 1168 1169 xcc->kvm_required = true; 1170 xcc->desc = "KVM only: All recognized features"; 1171 } 1172 #endif 1173 1174 static void s390_base_cpu_model_class_init(ObjectClass *oc, void *data) 1175 { 1176 S390CPUClass *xcc = S390_CPU_CLASS(oc); 1177 1178 /* all base models are migration safe */ 1179 xcc->cpu_def = (const S390CPUDef *) data; 1180 xcc->is_migration_safe = true; 1181 xcc->is_static = true; 1182 xcc->desc = xcc->cpu_def->desc; 1183 } 1184 1185 static void s390_cpu_model_class_init(ObjectClass *oc, void *data) 1186 { 1187 S390CPUClass *xcc = S390_CPU_CLASS(oc); 1188 1189 /* model that can change between QEMU versions */ 1190 xcc->cpu_def = (const S390CPUDef *) data; 1191 xcc->is_migration_safe = true; 1192 xcc->desc = xcc->cpu_def->desc; 1193 } 1194 1195 static void s390_qemu_cpu_model_class_init(ObjectClass *oc, void *data) 1196 { 1197 S390CPUClass *xcc = S390_CPU_CLASS(oc); 1198 1199 xcc->is_migration_safe = true; 1200 xcc->desc = g_strdup_printf("QEMU Virtual CPU version %s", 1201 qemu_hw_version()); 1202 } 1203 1204 /* Generate type name for a cpu model. Caller has to free the string. */ 1205 static char *s390_cpu_type_name(const char *model_name) 1206 { 1207 return g_strdup_printf(S390_CPU_TYPE_NAME("%s"), model_name); 1208 } 1209 1210 /* Generate type name for a base cpu model. Caller has to free the string. */ 1211 static char *s390_base_cpu_type_name(const char *model_name) 1212 { 1213 return g_strdup_printf(S390_CPU_TYPE_NAME("%s-base"), model_name); 1214 } 1215 1216 ObjectClass *s390_cpu_class_by_name(const char *name) 1217 { 1218 char *typename = s390_cpu_type_name(name); 1219 ObjectClass *oc; 1220 1221 oc = object_class_by_name(typename); 1222 g_free(typename); 1223 return oc; 1224 } 1225 1226 static const TypeInfo qemu_s390_cpu_type_info = { 1227 .name = S390_CPU_TYPE_NAME("qemu"), 1228 .parent = TYPE_S390_CPU, 1229 .instance_init = s390_qemu_cpu_model_initfn, 1230 .instance_finalize = s390_cpu_model_finalize, 1231 .class_init = s390_qemu_cpu_model_class_init, 1232 }; 1233 1234 #ifdef CONFIG_KVM 1235 static const TypeInfo host_s390_cpu_type_info = { 1236 .name = S390_CPU_TYPE_NAME("host"), 1237 .parent = TYPE_S390_CPU, 1238 .instance_init = s390_host_cpu_model_initfn, 1239 .instance_finalize = s390_cpu_model_finalize, 1240 .class_init = s390_host_cpu_model_class_init, 1241 }; 1242 #endif 1243 1244 static void init_ignored_base_feat(void) 1245 { 1246 static const int feats[] = { 1247 /* MSA subfunctions that could not be available on certain machines */ 1248 S390_FEAT_KMAC_DEA, 1249 S390_FEAT_KMAC_TDEA_128, 1250 S390_FEAT_KMAC_TDEA_192, 1251 S390_FEAT_KMC_DEA, 1252 S390_FEAT_KMC_TDEA_128, 1253 S390_FEAT_KMC_TDEA_192, 1254 S390_FEAT_KM_DEA, 1255 S390_FEAT_KM_TDEA_128, 1256 S390_FEAT_KM_TDEA_192, 1257 S390_FEAT_KIMD_SHA_1, 1258 S390_FEAT_KLMD_SHA_1, 1259 }; 1260 int i; 1261 1262 for (i = 0; i < ARRAY_SIZE(feats); i++) { 1263 set_bit(feats[i], ignored_base_feat); 1264 } 1265 } 1266 1267 static void register_types(void) 1268 { 1269 static const S390FeatInit qemu_latest_init = { S390_FEAT_LIST_QEMU_LATEST }; 1270 int i; 1271 1272 init_ignored_base_feat(); 1273 1274 /* init all bitmaps from gnerated data initially */ 1275 s390_init_feat_bitmap(qemu_max_cpu_feat_init, qemu_max_cpu_feat); 1276 #ifndef CONFIG_USER_ONLY 1277 if (!pci_available) { 1278 clear_bit(S390_FEAT_ZPCI, qemu_max_cpu_feat); 1279 } 1280 #endif 1281 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 1282 s390_init_feat_bitmap(s390_cpu_defs[i].base_init, 1283 s390_cpu_defs[i].base_feat); 1284 s390_init_feat_bitmap(s390_cpu_defs[i].default_init, 1285 s390_cpu_defs[i].default_feat); 1286 s390_init_feat_bitmap(s390_cpu_defs[i].full_init, 1287 s390_cpu_defs[i].full_feat); 1288 } 1289 1290 /* initialize the qemu model with latest definition */ 1291 s390_set_qemu_cpu_model(QEMU_MAX_CPU_TYPE, QEMU_MAX_CPU_GEN, 1292 QEMU_MAX_CPU_EC_GA, qemu_latest_init); 1293 1294 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 1295 char *base_name = s390_base_cpu_type_name(s390_cpu_defs[i].name); 1296 TypeInfo ti_base = { 1297 .name = base_name, 1298 .parent = TYPE_S390_CPU, 1299 .instance_init = s390_cpu_model_initfn, 1300 .instance_finalize = s390_cpu_model_finalize, 1301 .class_init = s390_base_cpu_model_class_init, 1302 .class_data = (void *) &s390_cpu_defs[i], 1303 }; 1304 char *name = s390_cpu_type_name(s390_cpu_defs[i].name); 1305 TypeInfo ti = { 1306 .name = name, 1307 .parent = TYPE_S390_CPU, 1308 .instance_init = s390_cpu_model_initfn, 1309 .instance_finalize = s390_cpu_model_finalize, 1310 .class_init = s390_cpu_model_class_init, 1311 .class_data = (void *) &s390_cpu_defs[i], 1312 }; 1313 1314 type_register_static(&ti_base); 1315 type_register_static(&ti); 1316 g_free(base_name); 1317 g_free(name); 1318 } 1319 1320 type_register_static(&qemu_s390_cpu_type_info); 1321 #ifdef CONFIG_KVM 1322 type_register_static(&host_s390_cpu_type_info); 1323 #endif 1324 } 1325 1326 type_init(register_types) 1327