1 /* 2 * Arm CPU feature test cases 3 * 4 * Copyright (c) 2019 Red Hat Inc. 5 * Authors: 6 * Andrew Jones <drjones@redhat.com> 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or later. 9 * See the COPYING file in the top-level directory. 10 */ 11 #include "qemu/osdep.h" 12 #include "qemu/bitops.h" 13 #include "libqtest.h" 14 #include "qapi/qmp/qdict.h" 15 #include "qapi/qmp/qjson.h" 16 17 /* 18 * We expect the SVE max-vq to be 16. Also it must be <= 64 19 * for our test code, otherwise 'vls' can't just be a uint64_t. 20 */ 21 #define SVE_MAX_VQ 16 22 23 #define MACHINE "-machine virt,gic-version=max -accel tcg " 24 #define MACHINE_KVM "-machine virt,gic-version=max -accel kvm " 25 #define QUERY_HEAD "{ 'execute': 'query-cpu-model-expansion', " \ 26 " 'arguments': { 'type': 'full', " 27 #define QUERY_TAIL "}}" 28 29 static QDict *do_query_no_props(QTestState *qts, const char *cpu_type) 30 { 31 return qtest_qmp(qts, QUERY_HEAD "'model': { 'name': %s }" 32 QUERY_TAIL, cpu_type); 33 } 34 35 G_GNUC_PRINTF(3, 4) 36 static QDict *do_query(QTestState *qts, const char *cpu_type, 37 const char *fmt, ...) 38 { 39 QDict *resp; 40 41 if (fmt) { 42 QDict *args; 43 va_list ap; 44 45 va_start(ap, fmt); 46 args = qdict_from_vjsonf_nofail(fmt, ap); 47 va_end(ap); 48 49 resp = qtest_qmp(qts, QUERY_HEAD "'model': { 'name': %s, " 50 "'props': %p }" 51 QUERY_TAIL, cpu_type, args); 52 } else { 53 resp = do_query_no_props(qts, cpu_type); 54 } 55 56 return resp; 57 } 58 59 static const char *resp_get_error(QDict *resp) 60 { 61 QDict *qdict; 62 63 g_assert(resp); 64 65 qdict = qdict_get_qdict(resp, "error"); 66 if (qdict) { 67 return qdict_get_str(qdict, "desc"); 68 } 69 70 return NULL; 71 } 72 73 #define assert_error(qts, cpu_type, expected_error, fmt, ...) \ 74 ({ \ 75 QDict *_resp; \ 76 const char *_error; \ 77 \ 78 _resp = do_query(qts, cpu_type, fmt, ##__VA_ARGS__); \ 79 g_assert(_resp); \ 80 _error = resp_get_error(_resp); \ 81 g_assert(_error); \ 82 g_assert_cmpstr(_error, ==, expected_error); \ 83 qobject_unref(_resp); \ 84 }) 85 86 static bool resp_has_props(QDict *resp) 87 { 88 QDict *qdict; 89 90 g_assert(resp); 91 92 if (!qdict_haskey(resp, "return")) { 93 return false; 94 } 95 qdict = qdict_get_qdict(resp, "return"); 96 97 if (!qdict_haskey(qdict, "model")) { 98 return false; 99 } 100 qdict = qdict_get_qdict(qdict, "model"); 101 102 return qdict_haskey(qdict, "props"); 103 } 104 105 static QDict *resp_get_props(QDict *resp) 106 { 107 QDict *qdict; 108 109 g_assert(resp); 110 g_assert(resp_has_props(resp)); 111 112 qdict = qdict_get_qdict(resp, "return"); 113 qdict = qdict_get_qdict(qdict, "model"); 114 qdict = qdict_get_qdict(qdict, "props"); 115 116 return qdict; 117 } 118 119 static bool resp_get_feature(QDict *resp, const char *feature) 120 { 121 QDict *props; 122 123 g_assert(resp); 124 g_assert(resp_has_props(resp)); 125 props = resp_get_props(resp); 126 g_assert(qdict_get(props, feature)); 127 return qdict_get_bool(props, feature); 128 } 129 130 #define assert_has_feature(qts, cpu_type, feature) \ 131 ({ \ 132 QDict *_resp = do_query_no_props(qts, cpu_type); \ 133 g_assert(_resp); \ 134 g_assert(resp_has_props(_resp)); \ 135 g_assert(qdict_get(resp_get_props(_resp), feature)); \ 136 qobject_unref(_resp); \ 137 }) 138 139 #define assert_has_not_feature(qts, cpu_type, feature) \ 140 ({ \ 141 QDict *_resp = do_query_no_props(qts, cpu_type); \ 142 g_assert(_resp); \ 143 g_assert(!resp_has_props(_resp) || \ 144 !qdict_get(resp_get_props(_resp), feature)); \ 145 qobject_unref(_resp); \ 146 }) 147 148 #define resp_assert_feature(resp, feature, expected_value) \ 149 ({ \ 150 QDict *_props; \ 151 \ 152 g_assert(_resp); \ 153 g_assert(resp_has_props(_resp)); \ 154 _props = resp_get_props(_resp); \ 155 g_assert(qdict_get(_props, feature)); \ 156 g_assert(qdict_get_bool(_props, feature) == (expected_value)); \ 157 }) 158 159 #define assert_feature(qts, cpu_type, feature, expected_value) \ 160 ({ \ 161 QDict *_resp; \ 162 \ 163 _resp = do_query_no_props(qts, cpu_type); \ 164 g_assert(_resp); \ 165 resp_assert_feature(_resp, feature, expected_value); \ 166 qobject_unref(_resp); \ 167 }) 168 169 #define assert_set_feature(qts, cpu_type, feature, value) \ 170 ({ \ 171 const char *_fmt = (value) ? "{ %s: true }" : "{ %s: false }"; \ 172 QDict *_resp; \ 173 \ 174 _resp = do_query(qts, cpu_type, _fmt, feature); \ 175 g_assert(_resp); \ 176 resp_assert_feature(_resp, feature, value); \ 177 qobject_unref(_resp); \ 178 }) 179 180 #define assert_has_feature_enabled(qts, cpu_type, feature) \ 181 assert_feature(qts, cpu_type, feature, true) 182 183 #define assert_has_feature_disabled(qts, cpu_type, feature) \ 184 assert_feature(qts, cpu_type, feature, false) 185 186 static void assert_type_full(QTestState *qts) 187 { 188 const char *error; 189 QDict *resp; 190 191 resp = qtest_qmp(qts, "{ 'execute': 'query-cpu-model-expansion', " 192 "'arguments': { 'type': 'static', " 193 "'model': { 'name': 'foo' }}}"); 194 g_assert(resp); 195 error = resp_get_error(resp); 196 g_assert(error); 197 g_assert_cmpstr(error, ==, 198 "The requested expansion type is not supported"); 199 qobject_unref(resp); 200 } 201 202 static void assert_bad_props(QTestState *qts, const char *cpu_type) 203 { 204 const char *error; 205 QDict *resp; 206 207 resp = qtest_qmp(qts, "{ 'execute': 'query-cpu-model-expansion', " 208 "'arguments': { 'type': 'full', " 209 "'model': { 'name': %s, " 210 "'props': false }}}", 211 cpu_type); 212 g_assert(resp); 213 error = resp_get_error(resp); 214 g_assert(error); 215 g_assert_cmpstr(error, ==, 216 "Invalid parameter type for 'model.props'," 217 " expected: object"); 218 qobject_unref(resp); 219 } 220 221 static uint64_t resp_get_sve_vls(QDict *resp) 222 { 223 QDict *props; 224 const QDictEntry *e; 225 uint64_t vls = 0; 226 int n = 0; 227 228 g_assert(resp); 229 g_assert(resp_has_props(resp)); 230 231 props = resp_get_props(resp); 232 233 for (e = qdict_first(props); e; e = qdict_next(props, e)) { 234 if (strlen(e->key) > 3 && !strncmp(e->key, "sve", 3) && 235 g_ascii_isdigit(e->key[3])) { 236 char *endptr; 237 int bits; 238 239 bits = g_ascii_strtoll(&e->key[3], &endptr, 10); 240 if (!bits || *endptr != '\0') { 241 continue; 242 } 243 244 if (qdict_get_bool(props, e->key)) { 245 vls |= BIT_ULL((bits / 128) - 1); 246 } 247 ++n; 248 } 249 } 250 251 g_assert(n == SVE_MAX_VQ); 252 253 return vls; 254 } 255 256 #define assert_sve_vls(qts, cpu_type, expected_vls, fmt, ...) \ 257 ({ \ 258 QDict *_resp = do_query(qts, cpu_type, fmt, ##__VA_ARGS__); \ 259 g_assert(_resp); \ 260 g_assert(resp_has_props(_resp)); \ 261 g_assert(resp_get_sve_vls(_resp) == expected_vls); \ 262 qobject_unref(_resp); \ 263 }) 264 265 static void sve_tests_default(QTestState *qts, const char *cpu_type) 266 { 267 /* 268 * With no sve-max-vq or sve<N> properties on the command line 269 * the default is to have all vector lengths enabled. This also 270 * tests that 'sve' is 'on' by default. 271 */ 272 assert_sve_vls(qts, cpu_type, BIT_ULL(SVE_MAX_VQ) - 1, NULL); 273 274 /* With SVE off, all vector lengths should also be off. */ 275 assert_sve_vls(qts, cpu_type, 0, "{ 'sve': false }"); 276 277 /* With SVE on, we must have at least one vector length enabled. */ 278 assert_error(qts, cpu_type, "cannot disable sve128", "{ 'sve128': false }"); 279 280 /* Basic enable/disable tests. */ 281 assert_sve_vls(qts, cpu_type, 0x7, "{ 'sve384': true }"); 282 assert_sve_vls(qts, cpu_type, ((BIT_ULL(SVE_MAX_VQ) - 1) & ~BIT_ULL(2)), 283 "{ 'sve384': false }"); 284 285 /* 286 * --------------------------------------------------------------------- 287 * power-of-two(vq) all-power- can can 288 * of-two(< vq) enable disable 289 * --------------------------------------------------------------------- 290 * vq < max_vq no MUST* yes yes 291 * vq < max_vq yes MUST* yes no 292 * --------------------------------------------------------------------- 293 * vq == max_vq n/a MUST* yes** yes** 294 * --------------------------------------------------------------------- 295 * vq > max_vq n/a no no yes 296 * vq > max_vq n/a yes yes yes 297 * --------------------------------------------------------------------- 298 * 299 * [*] "MUST" means this requirement must already be satisfied, 300 * otherwise 'max_vq' couldn't itself be enabled. 301 * 302 * [**] Not testable with the QMP interface, only with the command line. 303 */ 304 305 /* max_vq := 8 */ 306 assert_sve_vls(qts, cpu_type, 0x8b, "{ 'sve1024': true }"); 307 308 /* max_vq := 8, vq < max_vq, !power-of-two(vq) */ 309 assert_sve_vls(qts, cpu_type, 0x8f, 310 "{ 'sve1024': true, 'sve384': true }"); 311 assert_sve_vls(qts, cpu_type, 0x8b, 312 "{ 'sve1024': true, 'sve384': false }"); 313 314 /* max_vq := 8, vq < max_vq, power-of-two(vq) */ 315 assert_sve_vls(qts, cpu_type, 0x8b, 316 "{ 'sve1024': true, 'sve256': true }"); 317 assert_error(qts, cpu_type, "cannot disable sve256", 318 "{ 'sve1024': true, 'sve256': false }"); 319 320 /* max_vq := 3, vq > max_vq, !all-power-of-two(< vq) */ 321 assert_error(qts, cpu_type, "cannot disable sve512", 322 "{ 'sve384': true, 'sve512': false, 'sve640': true }"); 323 324 /* 325 * We can disable power-of-two vector lengths when all larger lengths 326 * are also disabled. We only need to disable the power-of-two length, 327 * as all non-enabled larger lengths will then be auto-disabled. 328 */ 329 assert_sve_vls(qts, cpu_type, 0x7, "{ 'sve512': false }"); 330 331 /* max_vq := 3, vq > max_vq, all-power-of-two(< vq) */ 332 assert_sve_vls(qts, cpu_type, 0x1f, 333 "{ 'sve384': true, 'sve512': true, 'sve640': true }"); 334 assert_sve_vls(qts, cpu_type, 0xf, 335 "{ 'sve384': true, 'sve512': true, 'sve640': false }"); 336 } 337 338 static void sve_tests_sve_max_vq_8(const void *data) 339 { 340 QTestState *qts; 341 342 qts = qtest_init(MACHINE "-cpu max,sve-max-vq=8"); 343 344 assert_sve_vls(qts, "max", BIT_ULL(8) - 1, NULL); 345 346 /* 347 * Disabling the max-vq set by sve-max-vq is not allowed, but 348 * of course enabling it is OK. 349 */ 350 assert_error(qts, "max", "cannot disable sve1024", "{ 'sve1024': false }"); 351 assert_sve_vls(qts, "max", 0xff, "{ 'sve1024': true }"); 352 353 /* 354 * Enabling anything larger than max-vq set by sve-max-vq is not 355 * allowed, but of course disabling everything larger is OK. 356 */ 357 assert_error(qts, "max", "cannot enable sve1152", "{ 'sve1152': true }"); 358 assert_sve_vls(qts, "max", 0xff, "{ 'sve1152': false }"); 359 360 /* 361 * We can enable/disable non power-of-two lengths smaller than the 362 * max-vq set by sve-max-vq, but, while we can enable power-of-two 363 * lengths, we can't disable them. 364 */ 365 assert_sve_vls(qts, "max", 0xff, "{ 'sve384': true }"); 366 assert_sve_vls(qts, "max", 0xfb, "{ 'sve384': false }"); 367 assert_sve_vls(qts, "max", 0xff, "{ 'sve256': true }"); 368 assert_error(qts, "max", "cannot disable sve256", "{ 'sve256': false }"); 369 370 qtest_quit(qts); 371 } 372 373 static void sve_tests_sve_off(const void *data) 374 { 375 QTestState *qts; 376 377 qts = qtest_init(MACHINE "-cpu max,sve=off"); 378 379 /* SVE is off, so the map should be empty. */ 380 assert_sve_vls(qts, "max", 0, NULL); 381 382 /* The map stays empty even if we turn lengths off. */ 383 assert_sve_vls(qts, "max", 0, "{ 'sve128': false }"); 384 385 /* It's an error to enable lengths when SVE is off. */ 386 assert_error(qts, "max", "cannot enable sve128", "{ 'sve128': true }"); 387 388 /* With SVE re-enabled we should get all vector lengths enabled. */ 389 assert_sve_vls(qts, "max", BIT_ULL(SVE_MAX_VQ) - 1, "{ 'sve': true }"); 390 391 /* Or enable SVE with just specific vector lengths. */ 392 assert_sve_vls(qts, "max", 0x3, 393 "{ 'sve': true, 'sve128': true, 'sve256': true }"); 394 395 qtest_quit(qts); 396 } 397 398 static void sve_tests_sve_off_kvm(const void *data) 399 { 400 QTestState *qts; 401 402 qts = qtest_init(MACHINE_KVM "-cpu max,sve=off"); 403 404 /* 405 * We don't know if this host supports SVE so we don't 406 * attempt to test enabling anything. We only test that 407 * everything is disabled (as it should be with sve=off) 408 * and that using sve<N>=off to explicitly disable vector 409 * lengths is OK too. 410 */ 411 assert_sve_vls(qts, "max", 0, NULL); 412 assert_sve_vls(qts, "max", 0, "{ 'sve128': false }"); 413 414 qtest_quit(qts); 415 } 416 417 static void pauth_tests_default(QTestState *qts, const char *cpu_type) 418 { 419 assert_has_feature_enabled(qts, cpu_type, "pauth"); 420 assert_has_feature_disabled(qts, cpu_type, "pauth-impdef"); 421 assert_has_feature_disabled(qts, cpu_type, "pauth-qarma3"); 422 assert_set_feature(qts, cpu_type, "pauth", false); 423 assert_set_feature(qts, cpu_type, "pauth", true); 424 assert_set_feature(qts, cpu_type, "pauth-impdef", true); 425 assert_set_feature(qts, cpu_type, "pauth-impdef", false); 426 assert_set_feature(qts, cpu_type, "pauth-qarma3", true); 427 assert_set_feature(qts, cpu_type, "pauth-qarma3", false); 428 assert_error(qts, cpu_type, 429 "cannot enable pauth-impdef or pauth-qarma3 without pauth", 430 "{ 'pauth': false, 'pauth-impdef': true }"); 431 assert_error(qts, cpu_type, 432 "cannot enable pauth-impdef or pauth-qarma3 without pauth", 433 "{ 'pauth': false, 'pauth-qarma3': true }"); 434 assert_error(qts, cpu_type, 435 "cannot enable both pauth-impdef and pauth-qarma3", 436 "{ 'pauth': true, 'pauth-impdef': true, 'pauth-qarma3': true }"); 437 } 438 439 static void test_query_cpu_model_expansion(const void *data) 440 { 441 QTestState *qts; 442 443 qts = qtest_init(MACHINE "-cpu max"); 444 445 /* Test common query-cpu-model-expansion input validation */ 446 assert_type_full(qts); 447 assert_bad_props(qts, "max"); 448 assert_error(qts, "foo", "The CPU type 'foo' is not a recognized " 449 "ARM CPU type", NULL); 450 assert_error(qts, "max", "Parameter 'model.props.not-a-prop' is unexpected", 451 "{ 'not-a-prop': false }"); 452 assert_error(qts, "host", "The CPU type 'host' requires KVM", NULL); 453 454 /* Test expected feature presence/absence for some cpu types */ 455 assert_has_feature_enabled(qts, "cortex-a15", "pmu"); 456 assert_has_not_feature(qts, "cortex-a15", "aarch64"); 457 458 /* Enabling and disabling pmu should always work. */ 459 assert_has_feature_enabled(qts, "max", "pmu"); 460 assert_set_feature(qts, "max", "pmu", false); 461 assert_set_feature(qts, "max", "pmu", true); 462 463 assert_has_not_feature(qts, "max", "kvm-no-adjvtime"); 464 assert_has_not_feature(qts, "max", "kvm-steal-time"); 465 466 if (g_str_equal(qtest_get_arch(), "aarch64")) { 467 assert_has_feature_enabled(qts, "max", "aarch64"); 468 assert_has_feature_enabled(qts, "max", "sve"); 469 assert_has_feature_enabled(qts, "max", "sve128"); 470 assert_has_feature_enabled(qts, "cortex-a57", "pmu"); 471 assert_has_feature_enabled(qts, "cortex-a57", "aarch64"); 472 473 assert_has_feature_enabled(qts, "a64fx", "pmu"); 474 assert_has_feature_enabled(qts, "a64fx", "aarch64"); 475 /* 476 * A64FX does not support any other vector lengths besides those 477 * that are enabled by default(128bit, 256bits, 512bit). 478 */ 479 assert_has_feature_enabled(qts, "a64fx", "sve"); 480 assert_sve_vls(qts, "a64fx", 0xb, NULL); 481 assert_error(qts, "a64fx", "cannot enable sve384", 482 "{ 'sve384': true }"); 483 assert_error(qts, "a64fx", "cannot enable sve640", 484 "{ 'sve640': true }"); 485 486 sve_tests_default(qts, "max"); 487 pauth_tests_default(qts, "max"); 488 489 /* Test that features that depend on KVM generate errors without. */ 490 assert_error(qts, "max", 491 "'aarch64' feature cannot be disabled " 492 "unless KVM is enabled and 32-bit EL1 " 493 "is supported", 494 "{ 'aarch64': false }"); 495 } 496 497 qtest_quit(qts); 498 } 499 500 static void test_query_cpu_model_expansion_kvm(const void *data) 501 { 502 QTestState *qts; 503 504 qts = qtest_init(MACHINE_KVM "-cpu max"); 505 506 /* Enabling and disabling kvm-no-adjvtime should always work. */ 507 assert_has_feature_disabled(qts, "host", "kvm-no-adjvtime"); 508 assert_set_feature(qts, "host", "kvm-no-adjvtime", true); 509 assert_set_feature(qts, "host", "kvm-no-adjvtime", false); 510 511 if (g_str_equal(qtest_get_arch(), "aarch64")) { 512 bool kvm_supports_pmu; 513 bool kvm_supports_steal_time; 514 bool kvm_supports_sve; 515 char max_name[8], name[8]; 516 uint32_t max_vq, vq; 517 uint64_t vls; 518 QDict *resp; 519 char *error; 520 521 /* 522 * When using KVM, only the 'host' and 'max' CPU models are 523 * supported. Test that we're emitting a suitable error for 524 * unsupported CPU models. 525 */ 526 if (qtest_has_accel("tcg")) { 527 assert_error(qts, "cortex-a7", 528 "We cannot guarantee the CPU type 'cortex-a7' works " 529 "with KVM on this host", NULL); 530 } else { 531 /* 532 * With a KVM-only build the 32-bit CPUs are not present. 533 */ 534 assert_error(qts, "cortex-a7", 535 "The CPU type 'cortex-a7' is not a " 536 "recognized ARM CPU type", NULL); 537 } 538 539 assert_has_feature_enabled(qts, "host", "aarch64"); 540 541 /* 542 * Some features would be enabled by default, but they're disabled 543 * because this instance of KVM doesn't support them. Test that the 544 * features are present, and, when enabled, issue further tests. 545 */ 546 assert_has_feature(qts, "host", "kvm-steal-time"); 547 assert_has_feature(qts, "host", "sve"); 548 549 resp = do_query_no_props(qts, "host"); 550 kvm_supports_pmu = resp_get_feature(resp, "pmu"); 551 kvm_supports_steal_time = resp_get_feature(resp, "kvm-steal-time"); 552 kvm_supports_sve = resp_get_feature(resp, "sve"); 553 vls = resp_get_sve_vls(resp); 554 qobject_unref(resp); 555 556 if (kvm_supports_pmu) { 557 /* If we have pmu then we should be able to toggle it. */ 558 assert_set_feature(qts, "host", "pmu", false); 559 assert_set_feature(qts, "host", "pmu", true); 560 } 561 562 if (kvm_supports_steal_time) { 563 /* If we have steal-time then we should be able to toggle it. */ 564 assert_set_feature(qts, "host", "kvm-steal-time", false); 565 assert_set_feature(qts, "host", "kvm-steal-time", true); 566 } 567 568 if (kvm_supports_sve) { 569 g_assert(vls != 0); 570 max_vq = 64 - __builtin_clzll(vls); 571 sprintf(max_name, "sve%u", max_vq * 128); 572 573 /* Enabling a supported length is of course fine. */ 574 assert_sve_vls(qts, "host", vls, "{ %s: true }", max_name); 575 576 /* Get the next supported length smaller than max-vq. */ 577 vq = 64 - __builtin_clzll(vls & ~BIT_ULL(max_vq - 1)); 578 if (vq) { 579 /* 580 * We have at least one length smaller than max-vq, 581 * so we can disable max-vq. 582 */ 583 assert_sve_vls(qts, "host", (vls & ~BIT_ULL(max_vq - 1)), 584 "{ %s: false }", max_name); 585 586 /* 587 * Smaller, supported vector lengths cannot be disabled 588 * unless all larger, supported vector lengths are also 589 * disabled. 590 */ 591 sprintf(name, "sve%u", vq * 128); 592 error = g_strdup_printf("cannot disable %s", name); 593 assert_error(qts, "host", error, 594 "{ %s: true, %s: false }", 595 max_name, name); 596 g_free(error); 597 } 598 599 /* 600 * The smallest, supported vector length is required, because 601 * we need at least one vector length enabled. 602 */ 603 vq = __builtin_ffsll(vls); 604 sprintf(name, "sve%u", vq * 128); 605 error = g_strdup_printf("cannot disable %s", name); 606 assert_error(qts, "host", error, "{ %s: false }", name); 607 g_free(error); 608 609 /* Get an unsupported length. */ 610 for (vq = 1; vq <= max_vq; ++vq) { 611 if (!(vls & BIT_ULL(vq - 1))) { 612 break; 613 } 614 } 615 if (vq <= SVE_MAX_VQ) { 616 sprintf(name, "sve%u", vq * 128); 617 error = g_strdup_printf("cannot enable %s", name); 618 assert_error(qts, "host", error, "{ %s: true }", name); 619 g_free(error); 620 } 621 } else { 622 g_assert(vls == 0); 623 } 624 } else { 625 assert_has_not_feature(qts, "host", "aarch64"); 626 assert_has_not_feature(qts, "host", "pmu"); 627 assert_has_not_feature(qts, "host", "sve"); 628 assert_has_not_feature(qts, "host", "kvm-steal-time"); 629 } 630 631 qtest_quit(qts); 632 } 633 634 int main(int argc, char **argv) 635 { 636 g_test_init(&argc, &argv, NULL); 637 638 if (!qtest_has_machine("virt")) { 639 goto out; 640 } 641 642 if (qtest_has_accel("tcg")) { 643 qtest_add_data_func("/arm/query-cpu-model-expansion", 644 NULL, test_query_cpu_model_expansion); 645 } 646 647 if (!g_str_equal(qtest_get_arch(), "aarch64")) { 648 goto out; 649 } 650 651 /* 652 * For now we only run KVM specific tests with AArch64 QEMU in 653 * order avoid attempting to run an AArch32 QEMU with KVM on 654 * AArch64 hosts. That won't work and isn't easy to detect. 655 */ 656 if (qtest_has_accel("kvm")) { 657 /* 658 * This tests target the 'host' CPU type, so register it only if 659 * KVM is available. 660 */ 661 qtest_add_data_func("/arm/kvm/query-cpu-model-expansion", 662 NULL, test_query_cpu_model_expansion_kvm); 663 664 qtest_add_data_func("/arm/kvm/query-cpu-model-expansion/sve-off", 665 NULL, sve_tests_sve_off_kvm); 666 } 667 668 if (qtest_has_accel("tcg")) { 669 qtest_add_data_func("/arm/max/query-cpu-model-expansion/sve-max-vq-8", 670 NULL, sve_tests_sve_max_vq_8); 671 qtest_add_data_func("/arm/max/query-cpu-model-expansion/sve-off", 672 NULL, sve_tests_sve_off); 673 } 674 675 out: 676 return g_test_run(); 677 } 678