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 "gen-features.h" 16 #include "qapi/error.h" 17 #include "qapi/visitor.h" 18 #include "qemu/error-report.h" 19 #include "qapi/qmp/qerror.h" 20 #include "qapi/qobject-input-visitor.h" 21 #include "qapi/qmp/qbool.h" 22 #ifndef CONFIG_USER_ONLY 23 #include "sysemu/arch_init.h" 24 #endif 25 26 #define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \ 27 { \ 28 .name = _name, \ 29 .type = _type, \ 30 .gen = _gen, \ 31 .ec_ga = _ec_ga, \ 32 .mha_pow = _mha_pow, \ 33 .hmfai = _hmfai, \ 34 .desc = _desc, \ 35 .base_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _BASE }, \ 36 .default_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _DEFAULT }, \ 37 .full_init = { S390_FEAT_LIST_GEN ## _gen ## _GA ## _ec_ga ## _FULL }, \ 38 } 39 40 /* 41 * CPU definiton list in order of release. For now, base features of a 42 * following release are always a subset of base features of the previous 43 * release. Same is correct for the other feature sets. 44 * A BC release always follows the corresponding EC release. 45 */ 46 static S390CPUDef s390_cpu_defs[] = { 47 CPUDEF_INIT(0x2064, 7, 1, 38, 0x00000000U, "z900", "IBM zSeries 900 GA1"), 48 CPUDEF_INIT(0x2064, 7, 2, 38, 0x00000000U, "z900.2", "IBM zSeries 900 GA2"), 49 CPUDEF_INIT(0x2064, 7, 3, 38, 0x00000000U, "z900.3", "IBM zSeries 900 GA3"), 50 CPUDEF_INIT(0x2066, 7, 3, 38, 0x00000000U, "z800", "IBM zSeries 800 GA1"), 51 CPUDEF_INIT(0x2084, 8, 1, 38, 0x00000000U, "z990", "IBM zSeries 990 GA1"), 52 CPUDEF_INIT(0x2084, 8, 2, 38, 0x00000000U, "z990.2", "IBM zSeries 990 GA2"), 53 CPUDEF_INIT(0x2084, 8, 3, 38, 0x00000000U, "z990.3", "IBM zSeries 990 GA3"), 54 CPUDEF_INIT(0x2086, 8, 3, 38, 0x00000000U, "z890", "IBM zSeries 880 GA1"), 55 CPUDEF_INIT(0x2084, 8, 4, 38, 0x00000000U, "z990.4", "IBM zSeries 990 GA4"), 56 CPUDEF_INIT(0x2086, 8, 4, 38, 0x00000000U, "z890.2", "IBM zSeries 880 GA2"), 57 CPUDEF_INIT(0x2084, 8, 5, 38, 0x00000000U, "z990.5", "IBM zSeries 990 GA5"), 58 CPUDEF_INIT(0x2086, 8, 5, 38, 0x00000000U, "z890.3", "IBM zSeries 880 GA3"), 59 CPUDEF_INIT(0x2094, 9, 1, 40, 0x00000000U, "z9EC", "IBM System z9 EC GA1"), 60 CPUDEF_INIT(0x2094, 9, 2, 40, 0x00000000U, "z9EC.2", "IBM System z9 EC GA2"), 61 CPUDEF_INIT(0x2096, 9, 2, 40, 0x00000000U, "z9BC", "IBM System z9 BC GA1"), 62 CPUDEF_INIT(0x2094, 9, 3, 40, 0x00000000U, "z9EC.3", "IBM System z9 EC GA3"), 63 CPUDEF_INIT(0x2096, 9, 3, 40, 0x00000000U, "z9BC.2", "IBM System z9 BC GA2"), 64 CPUDEF_INIT(0x2097, 10, 1, 43, 0x00000000U, "z10EC", "IBM System z10 EC GA1"), 65 CPUDEF_INIT(0x2097, 10, 2, 43, 0x00000000U, "z10EC.2", "IBM System z10 EC GA2"), 66 CPUDEF_INIT(0x2098, 10, 2, 43, 0x00000000U, "z10BC", "IBM System z10 BC GA1"), 67 CPUDEF_INIT(0x2097, 10, 3, 43, 0x00000000U, "z10EC.3", "IBM System z10 EC GA3"), 68 CPUDEF_INIT(0x2098, 10, 3, 43, 0x00000000U, "z10BC.2", "IBM System z10 BC GA2"), 69 CPUDEF_INIT(0x2817, 11, 1, 44, 0x08000000U, "z196", "IBM zEnterprise 196 GA1"), 70 CPUDEF_INIT(0x2817, 11, 2, 44, 0x08000000U, "z196.2", "IBM zEnterprise 196 GA2"), 71 CPUDEF_INIT(0x2818, 11, 2, 44, 0x08000000U, "z114", "IBM zEnterprise 114 GA1"), 72 CPUDEF_INIT(0x2827, 12, 1, 44, 0x08000000U, "zEC12", "IBM zEnterprise EC12 GA1"), 73 CPUDEF_INIT(0x2827, 12, 2, 44, 0x08000000U, "zEC12.2", "IBM zEnterprise EC12 GA2"), 74 CPUDEF_INIT(0x2828, 12, 2, 44, 0x08000000U, "zBC12", "IBM zEnterprise BC12 GA1"), 75 CPUDEF_INIT(0x2964, 13, 1, 47, 0x08000000U, "z13", "IBM z13 GA1"), 76 CPUDEF_INIT(0x2964, 13, 2, 47, 0x08000000U, "z13.2", "IBM z13 GA2"), 77 CPUDEF_INIT(0x2965, 13, 2, 47, 0x08000000U, "z13s", "IBM z13s GA1"), 78 CPUDEF_INIT(0x3906, 14, 1, 47, 0x08000000U, "z14", "IBM z14 GA1"), 79 }; 80 81 /* features part of a base model but not relevant for finding a base model */ 82 S390FeatBitmap ignored_base_feat; 83 84 void s390_cpudef_featoff(uint8_t gen, uint8_t ec_ga, S390Feat feat) 85 { 86 const S390CPUDef *def; 87 88 def = s390_find_cpu_def(0, gen, ec_ga, NULL); 89 clear_bit(feat, (unsigned long *)&def->default_feat); 90 } 91 92 void s390_cpudef_featoff_greater(uint8_t gen, uint8_t ec_ga, S390Feat feat) 93 { 94 int i; 95 96 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 97 const S390CPUDef *def = &s390_cpu_defs[i]; 98 99 if (def->gen < gen) { 100 continue; 101 } 102 if (def->gen == gen && def->ec_ga < ec_ga) { 103 continue; 104 } 105 106 clear_bit(feat, (unsigned long *)&def->default_feat); 107 } 108 } 109 110 uint32_t s390_get_hmfai(void) 111 { 112 static S390CPU *cpu; 113 114 if (!cpu) { 115 cpu = S390_CPU(qemu_get_cpu(0)); 116 } 117 118 if (!cpu || !cpu->model) { 119 return 0; 120 } 121 return cpu->model->def->hmfai; 122 } 123 124 uint8_t s390_get_mha_pow(void) 125 { 126 static S390CPU *cpu; 127 128 if (!cpu) { 129 cpu = S390_CPU(qemu_get_cpu(0)); 130 } 131 132 if (!cpu || !cpu->model) { 133 return 0; 134 } 135 return cpu->model->def->mha_pow; 136 } 137 138 uint32_t s390_get_ibc_val(void) 139 { 140 uint16_t unblocked_ibc, lowest_ibc; 141 static S390CPU *cpu; 142 143 if (!cpu) { 144 cpu = S390_CPU(qemu_get_cpu(0)); 145 } 146 147 if (!cpu || !cpu->model) { 148 return 0; 149 } 150 unblocked_ibc = s390_ibc_from_cpu_model(cpu->model); 151 lowest_ibc = cpu->model->lowest_ibc; 152 /* the lowest_ibc always has to be <= unblocked_ibc */ 153 if (!lowest_ibc || lowest_ibc > unblocked_ibc) { 154 return 0; 155 } 156 return ((uint32_t) lowest_ibc << 16) | unblocked_ibc; 157 } 158 159 void s390_get_feat_block(S390FeatType type, uint8_t *data) 160 { 161 static S390CPU *cpu; 162 163 if (!cpu) { 164 cpu = S390_CPU(qemu_get_cpu(0)); 165 } 166 167 if (!cpu || !cpu->model) { 168 return; 169 } 170 s390_fill_feat_block(cpu->model->features, type, data); 171 } 172 173 bool s390_has_feat(S390Feat feat) 174 { 175 static S390CPU *cpu; 176 177 if (!cpu) { 178 cpu = S390_CPU(qemu_get_cpu(0)); 179 } 180 181 if (!cpu || !cpu->model) { 182 #ifdef CONFIG_KVM 183 if (kvm_enabled()) { 184 if (feat == S390_FEAT_VECTOR) { 185 return kvm_check_extension(kvm_state, 186 KVM_CAP_S390_VECTOR_REGISTERS); 187 } 188 if (feat == S390_FEAT_RUNTIME_INSTRUMENTATION) { 189 return kvm_s390_get_ri(); 190 } 191 if (feat == S390_FEAT_MSA_EXT_3) { 192 return true; 193 } 194 } 195 #endif 196 return 0; 197 } 198 return test_bit(feat, cpu->model->features); 199 } 200 201 uint8_t s390_get_gen_for_cpu_type(uint16_t type) 202 { 203 int i; 204 205 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 206 if (s390_cpu_defs[i].type == type) { 207 return s390_cpu_defs[i].gen; 208 } 209 } 210 return 0; 211 } 212 213 const S390CPUDef *s390_find_cpu_def(uint16_t type, uint8_t gen, uint8_t ec_ga, 214 S390FeatBitmap features) 215 { 216 const S390CPUDef *last_compatible = NULL; 217 const S390CPUDef *matching_cpu_type = NULL; 218 int i; 219 220 if (!gen) { 221 ec_ga = 0; 222 } 223 if (!gen && type) { 224 gen = s390_get_gen_for_cpu_type(type); 225 } 226 227 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 228 const S390CPUDef *def = &s390_cpu_defs[i]; 229 S390FeatBitmap missing; 230 231 /* don't even try newer generations if we know the generation */ 232 if (gen) { 233 if (def->gen > gen) { 234 break; 235 } else if (def->gen == gen && ec_ga && def->ec_ga > ec_ga) { 236 break; 237 } 238 } 239 240 if (features) { 241 /* see if the model satisfies the minimum features */ 242 bitmap_andnot(missing, def->base_feat, features, S390_FEAT_MAX); 243 /* 244 * Ignore certain features that are in the base model, but not 245 * relevant for the search (esp. MSA subfunctions). 246 */ 247 bitmap_andnot(missing, missing, ignored_base_feat, S390_FEAT_MAX); 248 if (!bitmap_empty(missing, S390_FEAT_MAX)) { 249 break; 250 } 251 } 252 253 /* stop the search if we found the exact model */ 254 if (def->type == type && def->ec_ga == ec_ga) { 255 return def; 256 } 257 /* remember if we've at least seen one with the same cpu type */ 258 if (def->type == type) { 259 matching_cpu_type = def; 260 } 261 last_compatible = def; 262 } 263 /* prefer the model with the same cpu type, esp. don't take the BC for EC */ 264 if (matching_cpu_type) { 265 return matching_cpu_type; 266 } 267 return last_compatible; 268 } 269 270 struct S390PrintCpuListInfo { 271 FILE *f; 272 fprintf_function print; 273 }; 274 275 static void print_cpu_model_list(ObjectClass *klass, void *opaque) 276 { 277 struct S390PrintCpuListInfo *info = opaque; 278 S390CPUClass *scc = S390_CPU_CLASS(klass); 279 char *name = g_strdup(object_class_get_name(klass)); 280 const char *details = ""; 281 282 if (scc->is_static) { 283 details = "(static, migration-safe)"; 284 } else if (scc->is_migration_safe) { 285 details = "(migration-safe)"; 286 } 287 288 /* strip off the -s390-cpu */ 289 g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; 290 (*info->print)(info->f, "s390 %-15s %-35s %s\n", name, scc->desc, 291 details); 292 g_free(name); 293 } 294 295 void s390_cpu_list(FILE *f, fprintf_function print) 296 { 297 struct S390PrintCpuListInfo info = { 298 .f = f, 299 .print = print, 300 }; 301 S390FeatGroup group; 302 S390Feat feat; 303 304 object_class_foreach(print_cpu_model_list, TYPE_S390_CPU, false, &info); 305 306 (*print)(f, "\nRecognized feature flags:\n"); 307 for (feat = 0; feat < S390_FEAT_MAX; feat++) { 308 const S390FeatDef *def = s390_feat_def(feat); 309 310 (*print)(f, "%-20s %-50s\n", def->name, def->desc); 311 } 312 313 (*print)(f, "\nRecognized feature groups:\n"); 314 for (group = 0; group < S390_FEAT_GROUP_MAX; group++) { 315 const S390FeatGroupDef *def = s390_feat_group_def(group); 316 317 (*print)(f, "%-20s %-50s\n", def->name, def->desc); 318 } 319 } 320 321 static S390CPUModel *get_max_cpu_model(Error **errp); 322 323 #ifndef CONFIG_USER_ONLY 324 static void list_add_feat(const char *name, void *opaque); 325 326 static void check_unavailable_features(const S390CPUModel *max_model, 327 const S390CPUModel *model, 328 strList **unavailable) 329 { 330 S390FeatBitmap missing; 331 332 /* check general model compatibility */ 333 if (max_model->def->gen < model->def->gen || 334 (max_model->def->gen == model->def->gen && 335 max_model->def->ec_ga < model->def->ec_ga)) { 336 list_add_feat("type", unavailable); 337 } 338 339 /* detect missing features if any to properly report them */ 340 bitmap_andnot(missing, model->features, max_model->features, 341 S390_FEAT_MAX); 342 if (!bitmap_empty(missing, S390_FEAT_MAX)) { 343 s390_feat_bitmap_to_ascii(missing, unavailable, list_add_feat); 344 } 345 } 346 347 struct CpuDefinitionInfoListData { 348 CpuDefinitionInfoList *list; 349 S390CPUModel *model; 350 }; 351 352 static void create_cpu_model_list(ObjectClass *klass, void *opaque) 353 { 354 struct CpuDefinitionInfoListData *cpu_list_data = opaque; 355 CpuDefinitionInfoList **cpu_list = &cpu_list_data->list; 356 CpuDefinitionInfoList *entry; 357 CpuDefinitionInfo *info; 358 char *name = g_strdup(object_class_get_name(klass)); 359 S390CPUClass *scc = S390_CPU_CLASS(klass); 360 361 /* strip off the -s390-cpu */ 362 g_strrstr(name, "-" TYPE_S390_CPU)[0] = 0; 363 info = g_malloc0(sizeof(*info)); 364 info->name = name; 365 info->has_migration_safe = true; 366 info->migration_safe = scc->is_migration_safe; 367 info->q_static = scc->is_static; 368 info->q_typename = g_strdup(object_class_get_name(klass)); 369 /* check for unavailable features */ 370 if (cpu_list_data->model) { 371 Object *obj; 372 S390CPU *sc; 373 obj = object_new(object_class_get_name(klass)); 374 sc = S390_CPU(obj); 375 if (sc->model) { 376 info->has_unavailable_features = true; 377 check_unavailable_features(cpu_list_data->model, sc->model, 378 &info->unavailable_features); 379 } 380 object_unref(obj); 381 } 382 383 entry = g_malloc0(sizeof(*entry)); 384 entry->value = info; 385 entry->next = *cpu_list; 386 *cpu_list = entry; 387 } 388 389 CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp) 390 { 391 struct CpuDefinitionInfoListData list_data = { 392 .list = NULL, 393 }; 394 395 list_data.model = get_max_cpu_model(errp); 396 if (*errp) { 397 error_free(*errp); 398 *errp = NULL; 399 } 400 401 object_class_foreach(create_cpu_model_list, TYPE_S390_CPU, false, 402 &list_data); 403 404 return list_data.list; 405 } 406 407 static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info, 408 Error **errp) 409 { 410 const QDict *qdict = NULL; 411 const QDictEntry *e; 412 Visitor *visitor; 413 ObjectClass *oc; 414 S390CPU *cpu; 415 Object *obj; 416 417 if (info->props) { 418 qdict = qobject_to_qdict(info->props); 419 if (!qdict) { 420 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); 421 return; 422 } 423 } 424 425 oc = cpu_class_by_name(TYPE_S390_CPU, info->name); 426 if (!oc) { 427 error_setg(errp, "The CPU definition \'%s\' is unknown.", info->name); 428 return; 429 } 430 if (S390_CPU_CLASS(oc)->kvm_required && !kvm_enabled()) { 431 error_setg(errp, "The CPU definition '%s' requires KVM", info->name); 432 return; 433 } 434 obj = object_new(object_class_get_name(oc)); 435 cpu = S390_CPU(obj); 436 437 if (!cpu->model) { 438 error_setg(errp, "Details about the host CPU model are not available, " 439 "it cannot be used."); 440 object_unref(obj); 441 return; 442 } 443 444 if (qdict) { 445 visitor = qobject_input_visitor_new(info->props); 446 visit_start_struct(visitor, NULL, NULL, 0, errp); 447 if (*errp) { 448 object_unref(obj); 449 return; 450 } 451 for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) { 452 object_property_set(obj, visitor, e->key, errp); 453 if (*errp) { 454 break; 455 } 456 } 457 if (!*errp) { 458 visit_check_struct(visitor, errp); 459 } 460 visit_end_struct(visitor, NULL); 461 visit_free(visitor); 462 if (*errp) { 463 object_unref(obj); 464 return; 465 } 466 } 467 468 /* copy the model and throw the cpu away */ 469 memcpy(model, cpu->model, sizeof(*model)); 470 object_unref(obj); 471 } 472 473 static void qdict_add_disabled_feat(const char *name, void *opaque) 474 { 475 qdict_put_bool(opaque, name, false); 476 } 477 478 static void qdict_add_enabled_feat(const char *name, void *opaque) 479 { 480 qdict_put_bool(opaque, name, true); 481 } 482 483 /* convert S390CPUDef into a static CpuModelInfo */ 484 static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model, 485 bool delta_changes) 486 { 487 QDict *qdict = qdict_new(); 488 S390FeatBitmap bitmap; 489 490 /* always fallback to the static base model */ 491 info->name = g_strdup_printf("%s-base", model->def->name); 492 493 if (delta_changes) { 494 /* features deleted from the base feature set */ 495 bitmap_andnot(bitmap, model->def->base_feat, model->features, 496 S390_FEAT_MAX); 497 if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { 498 s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); 499 } 500 501 /* features added to the base feature set */ 502 bitmap_andnot(bitmap, model->features, model->def->base_feat, 503 S390_FEAT_MAX); 504 if (!bitmap_empty(bitmap, S390_FEAT_MAX)) { 505 s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_enabled_feat); 506 } 507 } else { 508 /* expand all features */ 509 s390_feat_bitmap_to_ascii(model->features, qdict, 510 qdict_add_enabled_feat); 511 bitmap_complement(bitmap, model->features, S390_FEAT_MAX); 512 s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat); 513 } 514 515 if (!qdict_size(qdict)) { 516 QDECREF(qdict); 517 } else { 518 info->props = QOBJECT(qdict); 519 info->has_props = true; 520 } 521 } 522 523 CpuModelExpansionInfo *arch_query_cpu_model_expansion(CpuModelExpansionType type, 524 CpuModelInfo *model, 525 Error **errp) 526 { 527 CpuModelExpansionInfo *expansion_info = NULL; 528 S390CPUModel s390_model; 529 bool delta_changes = false; 530 531 /* convert it to our internal representation */ 532 cpu_model_from_info(&s390_model, model, errp); 533 if (*errp) { 534 return NULL; 535 } 536 537 if (type == CPU_MODEL_EXPANSION_TYPE_STATIC) { 538 delta_changes = true; 539 } else if (type != CPU_MODEL_EXPANSION_TYPE_FULL) { 540 error_setg(errp, "The requested expansion type is not supported."); 541 return NULL; 542 } 543 544 /* convert it back to a static representation */ 545 expansion_info = g_malloc0(sizeof(*expansion_info)); 546 expansion_info->model = g_malloc0(sizeof(*expansion_info->model)); 547 cpu_info_from_model(expansion_info->model, &s390_model, delta_changes); 548 return expansion_info; 549 } 550 551 static void list_add_feat(const char *name, void *opaque) 552 { 553 strList **last = (strList **) opaque; 554 strList *entry; 555 556 entry = g_malloc0(sizeof(*entry)); 557 entry->value = g_strdup(name); 558 entry->next = *last; 559 *last = entry; 560 } 561 562 CpuModelCompareInfo *arch_query_cpu_model_comparison(CpuModelInfo *infoa, 563 CpuModelInfo *infob, 564 Error **errp) 565 { 566 CpuModelCompareResult feat_result, gen_result; 567 CpuModelCompareInfo *compare_info; 568 S390FeatBitmap missing, added; 569 S390CPUModel modela, modelb; 570 571 /* convert both models to our internal representation */ 572 cpu_model_from_info(&modela, infoa, errp); 573 if (*errp) { 574 return NULL; 575 } 576 cpu_model_from_info(&modelb, infob, errp); 577 if (*errp) { 578 return NULL; 579 } 580 compare_info = g_malloc0(sizeof(*compare_info)); 581 582 /* check the cpu generation and ga level */ 583 if (modela.def->gen == modelb.def->gen) { 584 if (modela.def->ec_ga == modelb.def->ec_ga) { 585 /* ec and corresponding bc are identical */ 586 gen_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL; 587 } else if (modela.def->ec_ga < modelb.def->ec_ga) { 588 gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET; 589 } else { 590 gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; 591 } 592 } else if (modela.def->gen < modelb.def->gen) { 593 gen_result = CPU_MODEL_COMPARE_RESULT_SUBSET; 594 } else { 595 gen_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; 596 } 597 if (gen_result != CPU_MODEL_COMPARE_RESULT_IDENTICAL) { 598 /* both models cannot be made identical */ 599 list_add_feat("type", &compare_info->responsible_properties); 600 } 601 602 /* check the feature set */ 603 if (bitmap_equal(modela.features, modelb.features, S390_FEAT_MAX)) { 604 feat_result = CPU_MODEL_COMPARE_RESULT_IDENTICAL; 605 } else { 606 bitmap_andnot(missing, modela.features, modelb.features, S390_FEAT_MAX); 607 s390_feat_bitmap_to_ascii(missing, 608 &compare_info->responsible_properties, 609 list_add_feat); 610 bitmap_andnot(added, modelb.features, modela.features, S390_FEAT_MAX); 611 s390_feat_bitmap_to_ascii(added, &compare_info->responsible_properties, 612 list_add_feat); 613 if (bitmap_empty(missing, S390_FEAT_MAX)) { 614 feat_result = CPU_MODEL_COMPARE_RESULT_SUBSET; 615 } else if (bitmap_empty(added, S390_FEAT_MAX)) { 616 feat_result = CPU_MODEL_COMPARE_RESULT_SUPERSET; 617 } else { 618 feat_result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE; 619 } 620 } 621 622 /* combine the results */ 623 if (gen_result == feat_result) { 624 compare_info->result = gen_result; 625 } else if (feat_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) { 626 compare_info->result = gen_result; 627 } else if (gen_result == CPU_MODEL_COMPARE_RESULT_IDENTICAL) { 628 compare_info->result = feat_result; 629 } else { 630 compare_info->result = CPU_MODEL_COMPARE_RESULT_INCOMPATIBLE; 631 } 632 return compare_info; 633 } 634 635 CpuModelBaselineInfo *arch_query_cpu_model_baseline(CpuModelInfo *infoa, 636 CpuModelInfo *infob, 637 Error **errp) 638 { 639 CpuModelBaselineInfo *baseline_info; 640 S390CPUModel modela, modelb, model; 641 uint16_t cpu_type; 642 uint8_t max_gen_ga; 643 uint8_t max_gen; 644 645 /* convert both models to our internal representation */ 646 cpu_model_from_info(&modela, infoa, errp); 647 if (*errp) { 648 return NULL; 649 } 650 651 cpu_model_from_info(&modelb, infob, errp); 652 if (*errp) { 653 return NULL; 654 } 655 656 /* features both models support */ 657 bitmap_and(model.features, modela.features, modelb.features, S390_FEAT_MAX); 658 659 /* detect the maximum model not regarding features */ 660 if (modela.def->gen == modelb.def->gen) { 661 if (modela.def->type == modelb.def->type) { 662 cpu_type = modela.def->type; 663 } else { 664 cpu_type = 0; 665 } 666 max_gen = modela.def->gen; 667 max_gen_ga = MIN(modela.def->ec_ga, modelb.def->ec_ga); 668 } else if (modela.def->gen > modelb.def->gen) { 669 cpu_type = modelb.def->type; 670 max_gen = modelb.def->gen; 671 max_gen_ga = modelb.def->ec_ga; 672 } else { 673 cpu_type = modela.def->type; 674 max_gen = modela.def->gen; 675 max_gen_ga = modela.def->ec_ga; 676 } 677 678 model.def = s390_find_cpu_def(cpu_type, max_gen, max_gen_ga, 679 model.features); 680 /* strip off features not part of the max model */ 681 bitmap_and(model.features, model.features, model.def->full_feat, 682 S390_FEAT_MAX); 683 684 baseline_info = g_malloc0(sizeof(*baseline_info)); 685 baseline_info->model = g_malloc0(sizeof(*baseline_info->model)); 686 cpu_info_from_model(baseline_info->model, &model, true); 687 return baseline_info; 688 } 689 #endif 690 691 static void check_consistency(const S390CPUModel *model) 692 { 693 static int dep[][2] = { 694 { S390_FEAT_IPTE_RANGE, S390_FEAT_DAT_ENH }, 695 { S390_FEAT_IDTE_SEGMENT, S390_FEAT_DAT_ENH }, 696 { S390_FEAT_IDTE_REGION, S390_FEAT_DAT_ENH }, 697 { S390_FEAT_IDTE_REGION, S390_FEAT_IDTE_SEGMENT }, 698 { S390_FEAT_LOCAL_TLB_CLEARING, S390_FEAT_DAT_ENH}, 699 { S390_FEAT_LONG_DISPLACEMENT_FAST, S390_FEAT_LONG_DISPLACEMENT }, 700 { S390_FEAT_DFP_FAST, S390_FEAT_DFP }, 701 { S390_FEAT_TRANSACTIONAL_EXE, S390_FEAT_STFLE_49 }, 702 { S390_FEAT_EDAT_2, S390_FEAT_EDAT}, 703 { S390_FEAT_MSA_EXT_5, S390_FEAT_KIMD_SHA_512 }, 704 { S390_FEAT_MSA_EXT_5, S390_FEAT_KLMD_SHA_512 }, 705 { S390_FEAT_MSA_EXT_4, S390_FEAT_MSA_EXT_3 }, 706 { S390_FEAT_SIE_CMMA, S390_FEAT_CMM }, 707 { S390_FEAT_SIE_CMMA, S390_FEAT_SIE_GSLS }, 708 { S390_FEAT_SIE_PFMFI, S390_FEAT_EDAT }, 709 { S390_FEAT_MSA_EXT_8, S390_FEAT_MSA_EXT_3 }, 710 { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_TOD_CLOCK_STEERING }, 711 { S390_FEAT_VECTOR_PACKED_DECIMAL, S390_FEAT_VECTOR }, 712 { S390_FEAT_VECTOR_ENH, S390_FEAT_VECTOR }, 713 { S390_FEAT_INSTRUCTION_EXEC_PROT, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2 }, 714 { S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2, S390_FEAT_ESOP }, 715 { S390_FEAT_CMM_NT, S390_FEAT_CMM }, 716 { S390_FEAT_GUARDED_STORAGE, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2 }, 717 { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_STORE_CLOCK_FAST }, 718 { S390_FEAT_MULTIPLE_EPOCH, S390_FEAT_TOD_CLOCK_STEERING }, 719 { S390_FEAT_SEMAPHORE_ASSIST, S390_FEAT_STFLE_49 }, 720 { S390_FEAT_KIMD_SHA3_224, S390_FEAT_MSA }, 721 { S390_FEAT_KIMD_SHA3_256, S390_FEAT_MSA }, 722 { S390_FEAT_KIMD_SHA3_384, S390_FEAT_MSA }, 723 { S390_FEAT_KIMD_SHA3_512, S390_FEAT_MSA }, 724 { S390_FEAT_KIMD_SHAKE_128, S390_FEAT_MSA }, 725 { S390_FEAT_KIMD_SHAKE_256, S390_FEAT_MSA }, 726 { S390_FEAT_KLMD_SHA3_224, S390_FEAT_MSA }, 727 { S390_FEAT_KLMD_SHA3_256, S390_FEAT_MSA }, 728 { S390_FEAT_KLMD_SHA3_384, S390_FEAT_MSA }, 729 { S390_FEAT_KLMD_SHA3_512, S390_FEAT_MSA }, 730 { S390_FEAT_KLMD_SHAKE_128, S390_FEAT_MSA }, 731 { S390_FEAT_KLMD_SHAKE_256, S390_FEAT_MSA }, 732 { S390_FEAT_PRNO_TRNG_QRTCR, S390_FEAT_MSA_EXT_5 }, 733 { S390_FEAT_PRNO_TRNG, S390_FEAT_MSA_EXT_5 }, 734 { S390_FEAT_SIE_KSS, S390_FEAT_SIE_F2 }, 735 }; 736 int i; 737 738 for (i = 0; i < ARRAY_SIZE(dep); i++) { 739 if (test_bit(dep[i][0], model->features) && 740 !test_bit(dep[i][1], model->features)) { 741 warn_report("\'%s\' requires \'%s\'.", 742 s390_feat_def(dep[i][0])->name, 743 s390_feat_def(dep[i][1])->name); 744 } 745 } 746 } 747 748 static void error_prepend_missing_feat(const char *name, void *opaque) 749 { 750 error_prepend((Error **) opaque, "%s ", name); 751 } 752 753 static void check_compatibility(const S390CPUModel *max_model, 754 const S390CPUModel *model, Error **errp) 755 { 756 S390FeatBitmap missing; 757 758 if (model->def->gen > max_model->def->gen) { 759 error_setg(errp, "Selected CPU generation is too new. Maximum " 760 "supported model in the configuration: \'%s\'", 761 max_model->def->name); 762 return; 763 } else if (model->def->gen == max_model->def->gen && 764 model->def->ec_ga > max_model->def->ec_ga) { 765 error_setg(errp, "Selected CPU GA level is too new. Maximum " 766 "supported model in the configuration: \'%s\'", 767 max_model->def->name); 768 return; 769 } 770 771 /* detect the missing features to properly report them */ 772 bitmap_andnot(missing, model->features, max_model->features, S390_FEAT_MAX); 773 if (bitmap_empty(missing, S390_FEAT_MAX)) { 774 return; 775 } 776 777 error_setg(errp, " "); 778 s390_feat_bitmap_to_ascii(missing, errp, error_prepend_missing_feat); 779 error_prepend(errp, "Some features requested in the CPU model are not " 780 "available in the configuration: "); 781 } 782 783 /** 784 * The base TCG CPU model "qemu" is based on the z900. However, we already 785 * can also emulate some additional features of later CPU generations, so 786 * we add these additional feature bits here. 787 */ 788 static void add_qemu_cpu_model_features(S390FeatBitmap fbm) 789 { 790 static const int feats[] = { 791 S390_FEAT_DAT_ENH, 792 S390_FEAT_IDTE_SEGMENT, 793 S390_FEAT_STFLE, 794 S390_FEAT_EXTENDED_IMMEDIATE, 795 S390_FEAT_EXTENDED_TRANSLATION_2, 796 S390_FEAT_EXTENDED_TRANSLATION_3, 797 S390_FEAT_LONG_DISPLACEMENT, 798 S390_FEAT_LONG_DISPLACEMENT_FAST, 799 S390_FEAT_ETF2_ENH, 800 S390_FEAT_STORE_CLOCK_FAST, 801 S390_FEAT_MOVE_WITH_OPTIONAL_SPEC, 802 S390_FEAT_ETF3_ENH, 803 S390_FEAT_COMPARE_AND_SWAP_AND_STORE, 804 S390_FEAT_COMPARE_AND_SWAP_AND_STORE_2, 805 S390_FEAT_GENERAL_INSTRUCTIONS_EXT, 806 S390_FEAT_EXECUTE_EXT, 807 S390_FEAT_FLOATING_POINT_SUPPPORT_ENH, 808 S390_FEAT_STFLE_45, 809 S390_FEAT_STFLE_49, 810 S390_FEAT_LOCAL_TLB_CLEARING, 811 S390_FEAT_STFLE_53, 812 }; 813 int i; 814 815 for (i = 0; i < ARRAY_SIZE(feats); i++) { 816 set_bit(feats[i], fbm); 817 } 818 } 819 820 static S390CPUModel *get_max_cpu_model(Error **errp) 821 { 822 static S390CPUModel max_model; 823 static bool cached; 824 825 if (cached) { 826 return &max_model; 827 } 828 829 if (kvm_enabled()) { 830 kvm_s390_get_host_cpu_model(&max_model, errp); 831 } else { 832 /* TCG emulates a z900 (with some optional additional features) */ 833 max_model.def = &s390_cpu_defs[0]; 834 bitmap_copy(max_model.features, max_model.def->default_feat, 835 S390_FEAT_MAX); 836 add_qemu_cpu_model_features(max_model.features); 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 cpu->env.cpuid = s390_cpuid_from_cpu_model(cpu->model); 913 if (tcg_enabled()) { 914 /* basic mode, write the cpu address into the first 4 bit of the ID */ 915 cpu->env.cpuid = deposit64(cpu->env.cpuid, 54, 4, cpu->env.cpu_num); 916 } 917 } 918 919 static void get_feature(Object *obj, Visitor *v, const char *name, 920 void *opaque, Error **errp) 921 { 922 S390Feat feat = (S390Feat) opaque; 923 S390CPU *cpu = S390_CPU(obj); 924 bool value; 925 926 if (!cpu->model) { 927 error_setg(errp, "Details about the host CPU model are not available, " 928 "features cannot be queried."); 929 return; 930 } 931 932 value = test_bit(feat, cpu->model->features); 933 visit_type_bool(v, name, &value, errp); 934 } 935 936 static void set_feature(Object *obj, Visitor *v, const char *name, 937 void *opaque, Error **errp) 938 { 939 S390Feat feat = (S390Feat) opaque; 940 DeviceState *dev = DEVICE(obj); 941 S390CPU *cpu = S390_CPU(obj); 942 bool value; 943 944 if (dev->realized) { 945 error_setg(errp, "Attempt to set property '%s' on '%s' after " 946 "it was realized", name, object_get_typename(obj)); 947 return; 948 } else if (!cpu->model) { 949 error_setg(errp, "Details about the host CPU model are not available, " 950 "features cannot be changed."); 951 return; 952 } 953 954 visit_type_bool(v, name, &value, errp); 955 if (*errp) { 956 return; 957 } 958 if (value) { 959 if (!test_bit(feat, cpu->model->def->full_feat)) { 960 error_setg(errp, "Feature '%s' is not available for CPU model '%s'," 961 " it was introduced with later models.", 962 name, cpu->model->def->name); 963 return; 964 } 965 set_bit(feat, cpu->model->features); 966 } else { 967 clear_bit(feat, cpu->model->features); 968 } 969 } 970 971 static void get_feature_group(Object *obj, Visitor *v, const char *name, 972 void *opaque, Error **errp) 973 { 974 S390FeatGroup group = (S390FeatGroup) opaque; 975 const S390FeatGroupDef *def = s390_feat_group_def(group); 976 S390CPU *cpu = S390_CPU(obj); 977 S390FeatBitmap tmp; 978 bool value; 979 980 if (!cpu->model) { 981 error_setg(errp, "Details about the host CPU model are not available, " 982 "features cannot be queried."); 983 return; 984 } 985 986 /* a group is enabled if all features are enabled */ 987 bitmap_and(tmp, cpu->model->features, def->feat, S390_FEAT_MAX); 988 value = bitmap_equal(tmp, def->feat, S390_FEAT_MAX); 989 visit_type_bool(v, name, &value, errp); 990 } 991 992 static void set_feature_group(Object *obj, Visitor *v, const char *name, 993 void *opaque, Error **errp) 994 { 995 S390FeatGroup group = (S390FeatGroup) opaque; 996 const S390FeatGroupDef *def = s390_feat_group_def(group); 997 DeviceState *dev = DEVICE(obj); 998 S390CPU *cpu = S390_CPU(obj); 999 bool value; 1000 1001 if (dev->realized) { 1002 error_setg(errp, "Attempt to set property '%s' on '%s' after " 1003 "it was realized", name, object_get_typename(obj)); 1004 return; 1005 } else if (!cpu->model) { 1006 error_setg(errp, "Details about the host CPU model are not available, " 1007 "features cannot be changed."); 1008 return; 1009 } 1010 1011 visit_type_bool(v, name, &value, errp); 1012 if (*errp) { 1013 return; 1014 } 1015 if (value) { 1016 /* groups are added in one shot, so an intersect is sufficient */ 1017 if (!bitmap_intersects(def->feat, cpu->model->def->full_feat, 1018 S390_FEAT_MAX)) { 1019 error_setg(errp, "Group '%s' is not available for CPU model '%s'," 1020 " it was introduced with later models.", 1021 name, cpu->model->def->name); 1022 return; 1023 } 1024 bitmap_or(cpu->model->features, cpu->model->features, def->feat, 1025 S390_FEAT_MAX); 1026 } else { 1027 bitmap_andnot(cpu->model->features, cpu->model->features, def->feat, 1028 S390_FEAT_MAX); 1029 } 1030 } 1031 1032 void s390_cpu_model_register_props(Object *obj) 1033 { 1034 S390FeatGroup group; 1035 S390Feat feat; 1036 1037 for (feat = 0; feat < S390_FEAT_MAX; feat++) { 1038 const S390FeatDef *def = s390_feat_def(feat); 1039 object_property_add(obj, def->name, "bool", get_feature, 1040 set_feature, NULL, (void *) feat, NULL); 1041 object_property_set_description(obj, def->name, def->desc , NULL); 1042 } 1043 for (group = 0; group < S390_FEAT_GROUP_MAX; group++) { 1044 const S390FeatGroupDef *def = s390_feat_group_def(group); 1045 object_property_add(obj, def->name, "bool", get_feature_group, 1046 set_feature_group, NULL, (void *) group, NULL); 1047 object_property_set_description(obj, def->name, def->desc , NULL); 1048 } 1049 } 1050 1051 static void s390_cpu_model_initfn(Object *obj) 1052 { 1053 S390CPU *cpu = S390_CPU(obj); 1054 S390CPUClass *xcc = S390_CPU_GET_CLASS(cpu); 1055 1056 cpu->model = g_malloc0(sizeof(*cpu->model)); 1057 /* copy the model, so we can modify it */ 1058 cpu->model->def = xcc->cpu_def; 1059 if (xcc->is_static) { 1060 /* base model - features will never change */ 1061 bitmap_copy(cpu->model->features, cpu->model->def->base_feat, 1062 S390_FEAT_MAX); 1063 } else { 1064 /* latest model - features can change */ 1065 bitmap_copy(cpu->model->features, 1066 cpu->model->def->default_feat, S390_FEAT_MAX); 1067 } 1068 } 1069 1070 #ifdef CONFIG_KVM 1071 static void s390_host_cpu_model_initfn(Object *obj) 1072 { 1073 S390CPU *cpu = S390_CPU(obj); 1074 Error *err = NULL; 1075 1076 if (!kvm_enabled() || !kvm_s390_cpu_models_supported()) { 1077 return; 1078 } 1079 1080 cpu->model = g_malloc0(sizeof(*cpu->model)); 1081 kvm_s390_get_host_cpu_model(cpu->model, &err); 1082 if (err) { 1083 error_report_err(err); 1084 g_free(cpu->model); 1085 /* fallback to unsupported cpu models */ 1086 cpu->model = NULL; 1087 } 1088 } 1089 #endif 1090 1091 static void s390_qemu_cpu_model_initfn(Object *obj) 1092 { 1093 static S390CPUDef s390_qemu_cpu_defs; 1094 S390CPU *cpu = S390_CPU(obj); 1095 1096 cpu->model = g_malloc0(sizeof(*cpu->model)); 1097 /* TCG emulates a z900 (with some optional additional features) */ 1098 memcpy(&s390_qemu_cpu_defs, &s390_cpu_defs[0], sizeof(s390_qemu_cpu_defs)); 1099 add_qemu_cpu_model_features(s390_qemu_cpu_defs.full_feat); 1100 cpu->model->def = &s390_qemu_cpu_defs; 1101 bitmap_copy(cpu->model->features, cpu->model->def->default_feat, 1102 S390_FEAT_MAX); 1103 } 1104 1105 static void s390_cpu_model_finalize(Object *obj) 1106 { 1107 S390CPU *cpu = S390_CPU(obj); 1108 1109 g_free(cpu->model); 1110 cpu->model = NULL; 1111 } 1112 1113 static bool get_is_migration_safe(Object *obj, Error **errp) 1114 { 1115 return S390_CPU_GET_CLASS(obj)->is_migration_safe; 1116 } 1117 1118 static bool get_is_static(Object *obj, Error **errp) 1119 { 1120 return S390_CPU_GET_CLASS(obj)->is_static; 1121 } 1122 1123 static char *get_description(Object *obj, Error **errp) 1124 { 1125 return g_strdup(S390_CPU_GET_CLASS(obj)->desc); 1126 } 1127 1128 void s390_cpu_model_class_register_props(ObjectClass *oc) 1129 { 1130 object_class_property_add_bool(oc, "migration-safe", get_is_migration_safe, 1131 NULL, NULL); 1132 object_class_property_add_bool(oc, "static", get_is_static, 1133 NULL, NULL); 1134 object_class_property_add_str(oc, "description", get_description, NULL, 1135 NULL); 1136 } 1137 1138 #ifdef CONFIG_KVM 1139 static void s390_host_cpu_model_class_init(ObjectClass *oc, void *data) 1140 { 1141 S390CPUClass *xcc = S390_CPU_CLASS(oc); 1142 1143 xcc->kvm_required = true; 1144 xcc->desc = "KVM only: All recognized features"; 1145 } 1146 #endif 1147 1148 static void s390_base_cpu_model_class_init(ObjectClass *oc, void *data) 1149 { 1150 S390CPUClass *xcc = S390_CPU_CLASS(oc); 1151 1152 /* all base models are migration safe */ 1153 xcc->cpu_def = (const S390CPUDef *) data; 1154 xcc->is_migration_safe = true; 1155 xcc->is_static = true; 1156 xcc->desc = xcc->cpu_def->desc; 1157 } 1158 1159 static void s390_cpu_model_class_init(ObjectClass *oc, void *data) 1160 { 1161 S390CPUClass *xcc = S390_CPU_CLASS(oc); 1162 1163 /* model that can change between QEMU versions */ 1164 xcc->cpu_def = (const S390CPUDef *) data; 1165 xcc->is_migration_safe = true; 1166 xcc->desc = xcc->cpu_def->desc; 1167 } 1168 1169 static void s390_qemu_cpu_model_class_init(ObjectClass *oc, void *data) 1170 { 1171 S390CPUClass *xcc = S390_CPU_CLASS(oc); 1172 1173 xcc->is_migration_safe = true; 1174 xcc->desc = g_strdup_printf("QEMU Virtual CPU version %s", 1175 qemu_hw_version()); 1176 } 1177 1178 #define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU 1179 #define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX) 1180 1181 /* Generate type name for a cpu model. Caller has to free the string. */ 1182 static char *s390_cpu_type_name(const char *model_name) 1183 { 1184 return g_strdup_printf(S390_CPU_TYPE_NAME("%s"), model_name); 1185 } 1186 1187 /* Generate type name for a base cpu model. Caller has to free the string. */ 1188 static char *s390_base_cpu_type_name(const char *model_name) 1189 { 1190 return g_strdup_printf(S390_CPU_TYPE_NAME("%s-base"), model_name); 1191 } 1192 1193 ObjectClass *s390_cpu_class_by_name(const char *name) 1194 { 1195 char *typename = s390_cpu_type_name(name); 1196 ObjectClass *oc; 1197 1198 oc = object_class_by_name(typename); 1199 g_free(typename); 1200 return oc; 1201 } 1202 1203 static const TypeInfo qemu_s390_cpu_type_info = { 1204 .name = S390_CPU_TYPE_NAME("qemu"), 1205 .parent = TYPE_S390_CPU, 1206 .instance_init = s390_qemu_cpu_model_initfn, 1207 .instance_finalize = s390_cpu_model_finalize, 1208 .class_init = s390_qemu_cpu_model_class_init, 1209 }; 1210 1211 #ifdef CONFIG_KVM 1212 static const TypeInfo host_s390_cpu_type_info = { 1213 .name = S390_CPU_TYPE_NAME("host"), 1214 .parent = TYPE_S390_CPU, 1215 .instance_init = s390_host_cpu_model_initfn, 1216 .instance_finalize = s390_cpu_model_finalize, 1217 .class_init = s390_host_cpu_model_class_init, 1218 }; 1219 #endif 1220 1221 static void init_ignored_base_feat(void) 1222 { 1223 static const int feats[] = { 1224 /* MSA subfunctions that could not be available on certain machines */ 1225 S390_FEAT_KMAC_DEA, 1226 S390_FEAT_KMAC_TDEA_128, 1227 S390_FEAT_KMAC_TDEA_192, 1228 S390_FEAT_KMC_DEA, 1229 S390_FEAT_KMC_TDEA_128, 1230 S390_FEAT_KMC_TDEA_192, 1231 S390_FEAT_KM_DEA, 1232 S390_FEAT_KM_TDEA_128, 1233 S390_FEAT_KM_TDEA_192, 1234 S390_FEAT_KIMD_SHA_1, 1235 S390_FEAT_KLMD_SHA_1, 1236 }; 1237 int i; 1238 1239 for (i = 0; i < ARRAY_SIZE(feats); i++) { 1240 set_bit(feats[i], ignored_base_feat); 1241 } 1242 } 1243 1244 static void register_types(void) 1245 { 1246 int i; 1247 1248 init_ignored_base_feat(); 1249 1250 /* init all bitmaps from gnerated data initially */ 1251 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 1252 s390_init_feat_bitmap(s390_cpu_defs[i].base_init, 1253 s390_cpu_defs[i].base_feat); 1254 s390_init_feat_bitmap(s390_cpu_defs[i].default_init, 1255 s390_cpu_defs[i].default_feat); 1256 s390_init_feat_bitmap(s390_cpu_defs[i].full_init, 1257 s390_cpu_defs[i].full_feat); 1258 } 1259 1260 for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { 1261 char *base_name = s390_base_cpu_type_name(s390_cpu_defs[i].name); 1262 TypeInfo ti_base = { 1263 .name = base_name, 1264 .parent = TYPE_S390_CPU, 1265 .instance_init = s390_cpu_model_initfn, 1266 .instance_finalize = s390_cpu_model_finalize, 1267 .class_init = s390_base_cpu_model_class_init, 1268 .class_data = (void *) &s390_cpu_defs[i], 1269 }; 1270 char *name = s390_cpu_type_name(s390_cpu_defs[i].name); 1271 TypeInfo ti = { 1272 .name = name, 1273 .parent = TYPE_S390_CPU, 1274 .instance_init = s390_cpu_model_initfn, 1275 .instance_finalize = s390_cpu_model_finalize, 1276 .class_init = s390_cpu_model_class_init, 1277 .class_data = (void *) &s390_cpu_defs[i], 1278 }; 1279 1280 type_register_static(&ti_base); 1281 type_register_static(&ti); 1282 g_free(base_name); 1283 g_free(name); 1284 } 1285 1286 type_register_static(&qemu_s390_cpu_type_info); 1287 #ifdef CONFIG_KVM 1288 type_register_static(&host_s390_cpu_type_info); 1289 #endif 1290 } 1291 1292 type_init(register_types) 1293