| 1 | /* |
| 2 | * Test Server |
| 3 | * |
| 4 | * Copyright IBM, Corp. 2011 |
| 5 | * |
| 6 | * Authors: |
| 7 | * Anthony Liguori <aliguori@us.ibm.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 10 | * See the COPYING file in the top-level directory. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #include "qemu/osdep.h" |
| 15 | #include "qapi/error.h" |
| 16 | #include "system/qtest.h" |
| 17 | #include "system/runstate.h" |
| 18 | #include "chardev/char-fe.h" |
| 19 | #include "system/ioport.h" |
| 20 | #include "system/memory.h" |
| 21 | #include "exec/tswap.h" |
| 22 | #include "hw/core/qdev.h" |
| 23 | #include "hw/core/irq.h" |
| 24 | #include "hw/core/cpu.h" |
| 25 | #include "qemu/accel.h" |
| 26 | #include "system/cpu-timers.h" |
| 27 | #include "qemu/config-file.h" |
| 28 | #include "qemu/option.h" |
| 29 | #include "qemu/error-report.h" |
| 30 | #include "qemu/module.h" |
| 31 | #include "qemu/cutils.h" |
| 32 | #include "qemu/target-info.h" |
| 33 | #include "qom/object_interfaces.h" |
| 34 | #include "qom/qom-qobject.h" |
| 35 | #include "qobject/qobject.h" |
| 36 | #include "qapi-commands-block.h" |
| 37 | |
| 38 | #define MAX_IRQ 256 |
| 39 | |
| 40 | #define TYPE_QTEST "qtest" |
| 41 | |
| 42 | OBJECT_DECLARE_SIMPLE_TYPE(QTest, QTEST) |
| 43 | |
| 44 | struct QTest { |
| 45 | Object parent; |
| 46 | |
| 47 | bool has_machine_link; |
| 48 | char *chr_name; |
| 49 | Chardev *chr; |
| 50 | CharFrontend qtest_chr; |
| 51 | char *log; |
| 52 | }; |
| 53 | |
| 54 | bool qtest_allowed; |
| 55 | |
| 56 | static DeviceState *irq_intercept_dev; |
| 57 | static FILE *qtest_log_fp; |
| 58 | static QTest *qtest; |
| 59 | static GString *inbuf; |
| 60 | static int irq_levels[MAX_IRQ]; |
| 61 | static GTimer *timer; |
| 62 | static bool qtest_opened; |
| 63 | static void (*qtest_server_send)(void*, const char*); |
| 64 | static void *qtest_server_send_opaque; |
| 65 | |
| 66 | #define FMT_timeval "%.06f" |
| 67 | |
| 68 | /** |
| 69 | * DOC: QTest Protocol |
| 70 | * |
| 71 | * Line based protocol, request/response based. Server can send async messages |
| 72 | * so clients should always handle many async messages before the response |
| 73 | * comes in. |
| 74 | * |
| 75 | * Extra ASCII space characters in command inputs are permitted and ignored. |
| 76 | * Lines containing only spaces are permitted and ignored. |
| 77 | * Lines that start with a '#' character (comments) are permitted and ignored. |
| 78 | * |
| 79 | * Valid requests |
| 80 | * ^^^^^^^^^^^^^^ |
| 81 | * |
| 82 | * Clock management: |
| 83 | * """"""""""""""""" |
| 84 | * |
| 85 | * The qtest client is completely in charge of the QEMU_CLOCK_VIRTUAL. qtest commands |
| 86 | * let you adjust the value of the clock (monotonically). All the commands |
| 87 | * return the current value of the clock in nanoseconds. |
| 88 | * |
| 89 | * If the commands FAIL then time wasn't advanced which is likely |
| 90 | * because the machine was in a paused state or no timer events exist |
| 91 | * in the future. This will cause qtest to abort and the test will |
| 92 | * need to check its assumptions. |
| 93 | * |
| 94 | * .. code-block:: none |
| 95 | * |
| 96 | * > clock_step |
| 97 | * < OK VALUE |
| 98 | * |
| 99 | * Advance the clock to the next deadline. Useful when waiting for |
| 100 | * asynchronous events. |
| 101 | * |
| 102 | * .. code-block:: none |
| 103 | * |
| 104 | * > clock_step NS |
| 105 | * < OK VALUE |
| 106 | * |
| 107 | * Advance the clock by NS nanoseconds. |
| 108 | * |
| 109 | * .. code-block:: none |
| 110 | * |
| 111 | * > clock_set NS |
| 112 | * < OK VALUE |
| 113 | * |
| 114 | * Advance the clock to NS nanoseconds (do nothing if it's already past). |
| 115 | * |
| 116 | * PIO and memory access: |
| 117 | * """""""""""""""""""""" |
| 118 | * |
| 119 | * .. code-block:: none |
| 120 | * |
| 121 | * > outb ADDR VALUE |
| 122 | * < OK |
| 123 | * |
| 124 | * .. code-block:: none |
| 125 | * |
| 126 | * > outw ADDR VALUE |
| 127 | * < OK |
| 128 | * |
| 129 | * .. code-block:: none |
| 130 | * |
| 131 | * > outl ADDR VALUE |
| 132 | * < OK |
| 133 | * |
| 134 | * .. code-block:: none |
| 135 | * |
| 136 | * > inb ADDR |
| 137 | * < OK VALUE |
| 138 | * |
| 139 | * .. code-block:: none |
| 140 | * |
| 141 | * > inw ADDR |
| 142 | * < OK VALUE |
| 143 | * |
| 144 | * .. code-block:: none |
| 145 | * |
| 146 | * > inl ADDR |
| 147 | * < OK VALUE |
| 148 | * |
| 149 | * .. code-block:: none |
| 150 | * |
| 151 | * > writeb ADDR VALUE |
| 152 | * < OK |
| 153 | * |
| 154 | * .. code-block:: none |
| 155 | * |
| 156 | * > writew ADDR VALUE |
| 157 | * < OK |
| 158 | * |
| 159 | * .. code-block:: none |
| 160 | * |
| 161 | * > writel ADDR VALUE |
| 162 | * < OK |
| 163 | * |
| 164 | * .. code-block:: none |
| 165 | * |
| 166 | * > writeq ADDR VALUE |
| 167 | * < OK |
| 168 | * |
| 169 | * .. code-block:: none |
| 170 | * |
| 171 | * > readb ADDR |
| 172 | * < OK VALUE |
| 173 | * |
| 174 | * .. code-block:: none |
| 175 | * |
| 176 | * > readw ADDR |
| 177 | * < OK VALUE |
| 178 | * |
| 179 | * .. code-block:: none |
| 180 | * |
| 181 | * > readl ADDR |
| 182 | * < OK VALUE |
| 183 | * |
| 184 | * .. code-block:: none |
| 185 | * |
| 186 | * > readq ADDR |
| 187 | * < OK VALUE |
| 188 | * |
| 189 | * .. code-block:: none |
| 190 | * |
| 191 | * > read ADDR SIZE |
| 192 | * < OK DATA |
| 193 | * |
| 194 | * .. code-block:: none |
| 195 | * |
| 196 | * > write ADDR SIZE DATA |
| 197 | * < OK |
| 198 | * |
| 199 | * .. code-block:: none |
| 200 | * |
| 201 | * > b64read ADDR SIZE |
| 202 | * < OK B64_DATA |
| 203 | * |
| 204 | * .. code-block:: none |
| 205 | * |
| 206 | * > b64write ADDR SIZE B64_DATA |
| 207 | * < OK |
| 208 | * |
| 209 | * .. code-block:: none |
| 210 | * |
| 211 | * > memset ADDR SIZE VALUE |
| 212 | * < OK |
| 213 | * |
| 214 | * ADDR, SIZE, VALUE are all integers parsed with strtoul() with a base of 0. |
| 215 | * For 'memset' a zero size is permitted and does nothing. |
| 216 | * |
| 217 | * DATA is an arbitrarily long hex number prefixed with '0x'. If it's smaller |
| 218 | * than the expected size, the value will be zero filled at the end of the data |
| 219 | * sequence. |
| 220 | * |
| 221 | * B64_DATA is an arbitrarily long base64 encoded string. |
| 222 | * If the sizes do not match, the data will be truncated. |
| 223 | * |
| 224 | * IRQ management: |
| 225 | * """"""""""""""" |
| 226 | * |
| 227 | * .. code-block:: none |
| 228 | * |
| 229 | * > irq_intercept_in QOM-PATH |
| 230 | * < OK |
| 231 | * |
| 232 | * .. code-block:: none |
| 233 | * |
| 234 | * > irq_intercept_out QOM-PATH |
| 235 | * < OK |
| 236 | * |
| 237 | * Attach to the gpio-in (resp. gpio-out) pins exported by the device at |
| 238 | * QOM-PATH. When the pin is triggered, one of the following async messages |
| 239 | * will be printed to the qtest stream:: |
| 240 | * |
| 241 | * IRQ raise NUM |
| 242 | * IRQ lower NUM |
| 243 | * |
| 244 | * where NUM is an IRQ number. For the PC, interrupts can be intercepted |
| 245 | * simply with "irq_intercept_in ioapic" (note that IRQ0 comes out with |
| 246 | * NUM=0 even though it is remapped to GSI 2). |
| 247 | * |
| 248 | * Setting interrupt level: |
| 249 | * """""""""""""""""""""""" |
| 250 | * |
| 251 | * .. code-block:: none |
| 252 | * |
| 253 | * > set_irq_in QOM-PATH NAME NUM LEVEL |
| 254 | * < OK |
| 255 | * |
| 256 | * where NAME is the name of the irq/gpio list, NUM is an IRQ number and |
| 257 | * LEVEL is an signed integer IRQ level. |
| 258 | * |
| 259 | * Forcibly set the given interrupt pin to the given level. |
| 260 | * |
| 261 | */ |
| 262 | |
| 263 | static int hex2nib(char ch) |
| 264 | { |
| 265 | if (ch >= '0' && ch <= '9') { |
| 266 | return ch - '0'; |
| 267 | } else if (ch >= 'a' && ch <= 'f') { |
| 268 | return 10 + (ch - 'a'); |
| 269 | } else if (ch >= 'A' && ch <= 'F') { |
| 270 | return 10 + (ch - 'A'); |
| 271 | } else { |
| 272 | return -1; |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | static void qtest_log_timestamp(void) |
| 277 | { |
| 278 | if (!qtest_log_fp || !qtest_opened) { |
| 279 | return; |
| 280 | } |
| 281 | |
| 282 | fprintf(qtest_log_fp, "[S +" FMT_timeval "] ", g_timer_elapsed(timer, NULL)); |
| 283 | } |
| 284 | |
| 285 | static void G_GNUC_PRINTF(1, 2) qtest_log_send(const char *fmt, ...) |
| 286 | { |
| 287 | va_list ap; |
| 288 | |
| 289 | if (!qtest_log_fp || !qtest_opened) { |
| 290 | return; |
| 291 | } |
| 292 | |
| 293 | qtest_log_timestamp(); |
| 294 | |
| 295 | va_start(ap, fmt); |
| 296 | vfprintf(qtest_log_fp, fmt, ap); |
| 297 | va_end(ap); |
| 298 | } |
| 299 | |
| 300 | static void qtest_server_char_be_send(void *opaque, const char *str) |
| 301 | { |
| 302 | size_t len = strlen(str); |
| 303 | CharFrontend* chr = (CharFrontend *)opaque; |
| 304 | qemu_chr_fe_write_all(chr, (uint8_t *)str, len); |
| 305 | if (qtest_log_fp && qtest_opened) { |
| 306 | fprintf(qtest_log_fp, "%s", str); |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | static void qtest_send(CharFrontend *chr, const char *str) |
| 311 | { |
| 312 | qtest_log_timestamp(); |
| 313 | qtest_server_send(qtest_server_send_opaque, str); |
| 314 | } |
| 315 | |
| 316 | void qtest_sendf(CharFrontend *chr, const char *fmt, ...) |
| 317 | { |
| 318 | va_list ap; |
| 319 | gchar *buffer; |
| 320 | |
| 321 | va_start(ap, fmt); |
| 322 | buffer = g_strdup_vprintf(fmt, ap); |
| 323 | qtest_send(chr, buffer); |
| 324 | g_free(buffer); |
| 325 | va_end(ap); |
| 326 | } |
| 327 | |
| 328 | static void qtest_irq_handler(void *opaque, int n, int level) |
| 329 | { |
| 330 | if (irq_levels[n] != level) { |
| 331 | CharFrontend *chr = &qtest->qtest_chr; |
| 332 | irq_levels[n] = level; |
| 333 | qtest_sendf(chr, "IRQ %s %d\n", |
| 334 | level ? "raise" : "lower", n); |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | static bool (*process_command_cb)(CharFrontend *chr, gchar **words); |
| 339 | |
| 340 | void qtest_set_command_cb(bool (*pc_cb)(CharFrontend *chr, gchar **words)) |
| 341 | { |
| 342 | assert(!process_command_cb); /* Switch to a list if we need more than one */ |
| 343 | |
| 344 | process_command_cb = pc_cb; |
| 345 | } |
| 346 | |
| 347 | static void qtest_install_gpio_out_intercept(DeviceState *dev, const char *name, int n) |
| 348 | { |
| 349 | qemu_irq *disconnected = g_new0(qemu_irq, 1); |
| 350 | qemu_irq icpt = qemu_allocate_irq(qtest_irq_handler, |
| 351 | disconnected, n); |
| 352 | |
| 353 | *disconnected = qdev_intercept_gpio_out(dev, icpt, name, n); |
| 354 | } |
| 355 | |
| 356 | static void qtest_process_command(CharFrontend *chr, gchar **words) |
| 357 | { |
| 358 | const gchar *command; |
| 359 | |
| 360 | g_assert(words); |
| 361 | |
| 362 | command = words[0]; |
| 363 | |
| 364 | if (qtest_log_fp) { |
| 365 | int i; |
| 366 | |
| 367 | fprintf(qtest_log_fp, "[R +" FMT_timeval "]", g_timer_elapsed(timer, NULL)); |
| 368 | for (i = 0; words[i]; i++) { |
| 369 | fprintf(qtest_log_fp, " %s", words[i]); |
| 370 | } |
| 371 | fprintf(qtest_log_fp, "\n"); |
| 372 | } |
| 373 | |
| 374 | if (!command || command[0] == '#') { |
| 375 | /* Input line was blank or a comment: ignore it */ |
| 376 | return; |
| 377 | } |
| 378 | |
| 379 | if (strcmp(words[0], "irq_intercept_out") == 0 |
| 380 | || strcmp(words[0], "irq_intercept_in") == 0) { |
| 381 | DeviceState *dev; |
| 382 | NamedGPIOList *ngl; |
| 383 | bool is_named; |
| 384 | bool is_outbound; |
| 385 | bool interception_succeeded = false; |
| 386 | |
| 387 | g_assert(words[1]); |
| 388 | is_named = words[2] != NULL; |
| 389 | is_outbound = words[0][14] == 'o'; |
| 390 | dev = DEVICE(object_resolve_path(words[1], NULL)); |
| 391 | if (!dev) { |
| 392 | qtest_send(chr, "FAIL Unknown device\n"); |
| 393 | return; |
| 394 | } |
| 395 | |
| 396 | if (is_named && !is_outbound) { |
| 397 | qtest_send(chr, "FAIL Interception of named in-GPIOs not yet supported\n"); |
| 398 | return; |
| 399 | } |
| 400 | |
| 401 | if (irq_intercept_dev) { |
| 402 | if (irq_intercept_dev != dev) { |
| 403 | qtest_send(chr, "FAIL IRQ intercept already enabled\n"); |
| 404 | } else { |
| 405 | qtest_send(chr, "OK\n"); |
| 406 | } |
| 407 | return; |
| 408 | } |
| 409 | |
| 410 | QLIST_FOREACH(ngl, &dev->gpios, node) { |
| 411 | /* We don't support inbound interception of named GPIOs yet */ |
| 412 | if (is_outbound) { |
| 413 | /* NULL is valid and matchable, for "unnamed GPIO" */ |
| 414 | if (g_strcmp0(ngl->name, words[2]) == 0) { |
| 415 | int i; |
| 416 | for (i = 0; i < ngl->num_out; ++i) { |
| 417 | qtest_install_gpio_out_intercept(dev, ngl->name, i); |
| 418 | } |
| 419 | interception_succeeded = true; |
| 420 | } |
| 421 | } else { |
| 422 | qemu_irq_set_observer(ngl->in, qtest_irq_handler, |
| 423 | ngl->num_in); |
| 424 | interception_succeeded = true; |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | if (interception_succeeded) { |
| 429 | irq_intercept_dev = dev; |
| 430 | qtest_send(chr, "OK\n"); |
| 431 | } else { |
| 432 | qtest_send(chr, "FAIL No intercepts installed\n"); |
| 433 | } |
| 434 | } else if (strcmp(words[0], "set_irq_in") == 0) { |
| 435 | DeviceState *dev; |
| 436 | qemu_irq irq; |
| 437 | char *name; |
| 438 | int ret; |
| 439 | int num; |
| 440 | int level; |
| 441 | |
| 442 | g_assert(words[1] && words[2] && words[3] && words[4]); |
| 443 | |
| 444 | dev = DEVICE(object_resolve_path(words[1], NULL)); |
| 445 | if (!dev) { |
| 446 | qtest_send(chr, "FAIL Unknown device\n"); |
| 447 | return; |
| 448 | } |
| 449 | |
| 450 | if (strcmp(words[2], "unnamed-gpio-in") == 0) { |
| 451 | name = NULL; |
| 452 | } else { |
| 453 | name = words[2]; |
| 454 | } |
| 455 | |
| 456 | ret = qemu_strtoi(words[3], NULL, 0, &num); |
| 457 | g_assert(!ret); |
| 458 | ret = qemu_strtoi(words[4], NULL, 0, &level); |
| 459 | g_assert(!ret); |
| 460 | |
| 461 | irq = qdev_get_gpio_in_named(dev, name, num); |
| 462 | |
| 463 | qemu_set_irq(irq, level); |
| 464 | qtest_send(chr, "OK\n"); |
| 465 | } else if (strcmp(words[0], "outb") == 0 || |
| 466 | strcmp(words[0], "outw") == 0 || |
| 467 | strcmp(words[0], "outl") == 0) { |
| 468 | unsigned long addr; |
| 469 | unsigned long value; |
| 470 | int ret; |
| 471 | |
| 472 | g_assert(words[1] && words[2]); |
| 473 | ret = qemu_strtoul(words[1], NULL, 0, &addr); |
| 474 | g_assert(ret == 0); |
| 475 | ret = qemu_strtoul(words[2], NULL, 0, &value); |
| 476 | g_assert(ret == 0); |
| 477 | g_assert(addr <= 0xffff); |
| 478 | |
| 479 | if (words[0][3] == 'b') { |
| 480 | cpu_outb(addr, value); |
| 481 | } else if (words[0][3] == 'w') { |
| 482 | cpu_outw(addr, value); |
| 483 | } else if (words[0][3] == 'l') { |
| 484 | cpu_outl(addr, value); |
| 485 | } |
| 486 | qtest_send(chr, "OK\n"); |
| 487 | } else if (strcmp(words[0], "inb") == 0 || |
| 488 | strcmp(words[0], "inw") == 0 || |
| 489 | strcmp(words[0], "inl") == 0) { |
| 490 | unsigned long addr; |
| 491 | uint32_t value = -1U; |
| 492 | int ret; |
| 493 | |
| 494 | g_assert(words[1]); |
| 495 | ret = qemu_strtoul(words[1], NULL, 0, &addr); |
| 496 | g_assert(ret == 0); |
| 497 | g_assert(addr <= 0xffff); |
| 498 | |
| 499 | if (words[0][2] == 'b') { |
| 500 | value = cpu_inb(addr); |
| 501 | } else if (words[0][2] == 'w') { |
| 502 | value = cpu_inw(addr); |
| 503 | } else if (words[0][2] == 'l') { |
| 504 | value = cpu_inl(addr); |
| 505 | } |
| 506 | qtest_sendf(chr, "OK 0x%04x\n", value); |
| 507 | } else if (strcmp(words[0], "writeb") == 0 || |
| 508 | strcmp(words[0], "writew") == 0 || |
| 509 | strcmp(words[0], "writel") == 0 || |
| 510 | strcmp(words[0], "writeq") == 0) { |
| 511 | uint64_t addr; |
| 512 | uint64_t value; |
| 513 | int ret; |
| 514 | |
| 515 | g_assert(words[1] && words[2]); |
| 516 | ret = qemu_strtou64(words[1], NULL, 0, &addr); |
| 517 | g_assert(ret == 0); |
| 518 | ret = qemu_strtou64(words[2], NULL, 0, &value); |
| 519 | g_assert(ret == 0); |
| 520 | |
| 521 | if (words[0][5] == 'b') { |
| 522 | uint8_t data = value; |
| 523 | address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, |
| 524 | &data, 1); |
| 525 | } else if (words[0][5] == 'w') { |
| 526 | uint16_t data = value; |
| 527 | tswap16s(&data); |
| 528 | address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, |
| 529 | &data, 2); |
| 530 | } else if (words[0][5] == 'l') { |
| 531 | uint32_t data = value; |
| 532 | tswap32s(&data); |
| 533 | address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, |
| 534 | &data, 4); |
| 535 | } else if (words[0][5] == 'q') { |
| 536 | uint64_t data = value; |
| 537 | tswap64s(&data); |
| 538 | address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, |
| 539 | &data, 8); |
| 540 | } |
| 541 | qtest_send(chr, "OK\n"); |
| 542 | } else if (strcmp(words[0], "readb") == 0 || |
| 543 | strcmp(words[0], "readw") == 0 || |
| 544 | strcmp(words[0], "readl") == 0 || |
| 545 | strcmp(words[0], "readq") == 0) { |
| 546 | uint64_t addr; |
| 547 | uint64_t value = UINT64_C(-1); |
| 548 | int ret; |
| 549 | |
| 550 | g_assert(words[1]); |
| 551 | ret = qemu_strtou64(words[1], NULL, 0, &addr); |
| 552 | g_assert(ret == 0); |
| 553 | |
| 554 | if (words[0][4] == 'b') { |
| 555 | uint8_t data; |
| 556 | address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, |
| 557 | &data, 1); |
| 558 | value = data; |
| 559 | } else if (words[0][4] == 'w') { |
| 560 | uint16_t data; |
| 561 | address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, |
| 562 | &data, 2); |
| 563 | value = tswap16(data); |
| 564 | } else if (words[0][4] == 'l') { |
| 565 | uint32_t data; |
| 566 | address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, |
| 567 | &data, 4); |
| 568 | value = tswap32(data); |
| 569 | } else if (words[0][4] == 'q') { |
| 570 | address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, |
| 571 | &value, 8); |
| 572 | tswap64s(&value); |
| 573 | } |
| 574 | qtest_sendf(chr, "OK 0x%016" PRIx64 "\n", value); |
| 575 | } else if (strcmp(words[0], "read") == 0) { |
| 576 | g_autoptr(GString) enc = NULL; |
| 577 | uint64_t addr, len; |
| 578 | uint8_t *data; |
| 579 | int ret; |
| 580 | |
| 581 | g_assert(words[1] && words[2]); |
| 582 | ret = qemu_strtou64(words[1], NULL, 0, &addr); |
| 583 | g_assert(ret == 0); |
| 584 | ret = qemu_strtou64(words[2], NULL, 0, &len); |
| 585 | g_assert(ret == 0); |
| 586 | /* We'd send garbage to libqtest if len is 0 */ |
| 587 | g_assert(len); |
| 588 | |
| 589 | data = g_malloc(len); |
| 590 | address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data, |
| 591 | len); |
| 592 | |
| 593 | enc = qemu_hexdump_line(NULL, data, len, 0, 0); |
| 594 | |
| 595 | qtest_sendf(chr, "OK 0x%s\n", enc->str); |
| 596 | |
| 597 | g_free(data); |
| 598 | } else if (strcmp(words[0], "b64read") == 0) { |
| 599 | uint64_t addr, len; |
| 600 | uint8_t *data; |
| 601 | gchar *b64_data; |
| 602 | int ret; |
| 603 | |
| 604 | g_assert(words[1] && words[2]); |
| 605 | ret = qemu_strtou64(words[1], NULL, 0, &addr); |
| 606 | g_assert(ret == 0); |
| 607 | ret = qemu_strtou64(words[2], NULL, 0, &len); |
| 608 | g_assert(ret == 0); |
| 609 | |
| 610 | data = g_malloc(len); |
| 611 | address_space_read(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data, |
| 612 | len); |
| 613 | b64_data = g_base64_encode(data, len); |
| 614 | qtest_sendf(chr, "OK %s\n", b64_data); |
| 615 | |
| 616 | g_free(data); |
| 617 | g_free(b64_data); |
| 618 | } else if (strcmp(words[0], "write") == 0) { |
| 619 | uint64_t addr, len, i; |
| 620 | uint8_t *data; |
| 621 | size_t data_len; |
| 622 | int ret; |
| 623 | |
| 624 | g_assert(words[1] && words[2] && words[3]); |
| 625 | ret = qemu_strtou64(words[1], NULL, 0, &addr); |
| 626 | g_assert(ret == 0); |
| 627 | ret = qemu_strtou64(words[2], NULL, 0, &len); |
| 628 | g_assert(ret == 0); |
| 629 | |
| 630 | data_len = strlen(words[3]); |
| 631 | if (data_len < 3) { |
| 632 | qtest_send(chr, "ERR invalid argument size\n"); |
| 633 | return; |
| 634 | } |
| 635 | |
| 636 | data = g_malloc(len); |
| 637 | for (i = 0; i < len; i++) { |
| 638 | if ((i * 2 + 4) <= data_len) { |
| 639 | data[i] = hex2nib(words[3][i * 2 + 2]) << 4; |
| 640 | data[i] |= hex2nib(words[3][i * 2 + 3]); |
| 641 | } else { |
| 642 | data[i] = 0; |
| 643 | } |
| 644 | } |
| 645 | address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data, |
| 646 | len); |
| 647 | g_free(data); |
| 648 | |
| 649 | qtest_send(chr, "OK\n"); |
| 650 | } else if (strcmp(words[0], "memset") == 0) { |
| 651 | uint64_t addr, len; |
| 652 | uint8_t *data; |
| 653 | unsigned long pattern; |
| 654 | int ret; |
| 655 | |
| 656 | g_assert(words[1] && words[2] && words[3]); |
| 657 | ret = qemu_strtou64(words[1], NULL, 0, &addr); |
| 658 | g_assert(ret == 0); |
| 659 | ret = qemu_strtou64(words[2], NULL, 0, &len); |
| 660 | g_assert(ret == 0); |
| 661 | ret = qemu_strtoul(words[3], NULL, 0, &pattern); |
| 662 | g_assert(ret == 0); |
| 663 | |
| 664 | if (len) { |
| 665 | data = g_malloc(len); |
| 666 | memset(data, pattern, len); |
| 667 | address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, |
| 668 | data, len); |
| 669 | g_free(data); |
| 670 | } |
| 671 | |
| 672 | qtest_send(chr, "OK\n"); |
| 673 | } else if (strcmp(words[0], "b64write") == 0) { |
| 674 | uint64_t addr, len; |
| 675 | uint8_t *data; |
| 676 | size_t data_len; |
| 677 | gsize out_len; |
| 678 | int ret; |
| 679 | |
| 680 | g_assert(words[1] && words[2] && words[3]); |
| 681 | ret = qemu_strtou64(words[1], NULL, 0, &addr); |
| 682 | g_assert(ret == 0); |
| 683 | ret = qemu_strtou64(words[2], NULL, 0, &len); |
| 684 | g_assert(ret == 0); |
| 685 | |
| 686 | data_len = strlen(words[3]); |
| 687 | if (data_len < 3) { |
| 688 | qtest_send(chr, "ERR invalid argument size\n"); |
| 689 | return; |
| 690 | } |
| 691 | |
| 692 | data = g_base64_decode_inplace(words[3], &out_len); |
| 693 | if (out_len != len) { |
| 694 | qtest_log_send("b64write: data length mismatch (told %"PRIu64", " |
| 695 | "found %zu)\n", |
| 696 | len, out_len); |
| 697 | out_len = MIN(out_len, len); |
| 698 | } |
| 699 | |
| 700 | address_space_write(first_cpu->as, addr, MEMTXATTRS_UNSPECIFIED, data, |
| 701 | out_len); |
| 702 | |
| 703 | qtest_send(chr, "OK\n"); |
| 704 | } else if (strcmp(words[0], "endianness") == 0) { |
| 705 | if (target_big_endian()) { |
| 706 | qtest_sendf(chr, "OK big\n"); |
| 707 | } else { |
| 708 | qtest_sendf(chr, "OK little\n"); |
| 709 | } |
| 710 | } else if (qtest_enabled() && strcmp(words[0], "clock_step") == 0) { |
| 711 | int64_t old_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
| 712 | int64_t ns, new_ns; |
| 713 | |
| 714 | if (words[1]) { |
| 715 | int ret = qemu_strtoi64(words[1], NULL, 0, &ns); |
| 716 | g_assert(ret == 0); |
| 717 | } else { |
| 718 | ns = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL, |
| 719 | QEMU_TIMER_ATTR_ALL); |
| 720 | if (ns < 0) { |
| 721 | qtest_send(chr, "FAIL " |
| 722 | "cannot advance clock to the next deadline " |
| 723 | "because there is no pending deadline\n"); |
| 724 | return; |
| 725 | } |
| 726 | } |
| 727 | new_ns = qemu_clock_advance_virtual_time(old_ns + ns); |
| 728 | if (new_ns > old_ns) { |
| 729 | qtest_sendf(chr, "OK %"PRIi64"\n", new_ns); |
| 730 | } else { |
| 731 | qtest_sendf(chr, "FAIL could not advance time\n"); |
| 732 | } |
| 733 | } else if (strcmp(words[0], "module_load") == 0) { |
| 734 | Error *local_err = NULL; |
| 735 | int rv; |
| 736 | g_assert(words[1] && words[2]); |
| 737 | |
| 738 | rv = module_load(words[1], words[2], &local_err); |
| 739 | if (rv > 0) { |
| 740 | qtest_sendf(chr, "OK\n"); |
| 741 | } else { |
| 742 | if (rv < 0) { |
| 743 | error_report_err(local_err); |
| 744 | } |
| 745 | qtest_sendf(chr, "FAIL\n"); |
| 746 | } |
| 747 | } else if (qtest_enabled() && strcmp(words[0], "clock_set") == 0) { |
| 748 | int64_t ns, new_ns; |
| 749 | int ret; |
| 750 | |
| 751 | g_assert(words[1]); |
| 752 | ret = qemu_strtoi64(words[1], NULL, 0, &ns); |
| 753 | g_assert(ret == 0); |
| 754 | new_ns = qemu_clock_advance_virtual_time(ns); |
| 755 | qtest_sendf(chr, "%s %"PRIi64"\n", |
| 756 | new_ns == ns ? "OK" : "FAIL", new_ns); |
| 757 | } else if (strcmp(words[0], "qom-tests") == 0) { |
| 758 | GSList *list, *l; |
| 759 | |
| 760 | list = object_class_get_list(NULL, false); |
| 761 | for (l = list; l; l = l->next) { |
| 762 | ObjectClass *klass = l->data; |
| 763 | const char *type_name = object_class_get_name(klass); |
| 764 | Object *obj; |
| 765 | ObjectPropertyIterator iter; |
| 766 | ObjectProperty *prop; |
| 767 | |
| 768 | obj = object_new_with_class(klass); |
| 769 | object_property_iter_init(&iter, obj); |
| 770 | while ((prop = object_property_iter_next(&iter))) { |
| 771 | QObject *value; |
| 772 | Error *local_err = NULL; |
| 773 | |
| 774 | value = object_property_get_qobject(obj, prop->name, |
| 775 | &local_err); |
| 776 | if (local_err) { |
| 777 | error_report("qom-tests: %s.%s: get failed: %s", |
| 778 | type_name, prop->name, |
| 779 | error_get_pretty(local_err)); |
| 780 | error_free(local_err); |
| 781 | continue; |
| 782 | } |
| 783 | |
| 784 | if (prop->set) { |
| 785 | if (!object_property_set_qobject(obj, prop->name, value, |
| 786 | &local_err)) { |
| 787 | error_report("qom-tests: %s.%s: set failed: %s", |
| 788 | type_name, prop->name, |
| 789 | error_get_pretty(local_err)); |
| 790 | error_free(local_err); |
| 791 | } |
| 792 | } |
| 793 | |
| 794 | qobject_unref(value); |
| 795 | } |
| 796 | |
| 797 | object_unref(obj); |
| 798 | } |
| 799 | g_slist_free(list); |
| 800 | qtest_send(chr, "OK\n"); |
| 801 | } else if (strcmp(words[0], "qemu-io") == 0) { |
| 802 | const char *io_dev; |
| 803 | g_autofree char *io_cmd = NULL; |
| 804 | Error *err = NULL; |
| 805 | |
| 806 | g_assert(words[1] && words[2]); |
| 807 | io_dev = words[1]; |
| 808 | io_cmd = g_strjoinv(" ", &words[2]); |
| 809 | |
| 810 | qmp_x_qemu_io(io_dev, NULL, io_cmd, &err); |
| 811 | qtest_sendf(chr, err ? "FAIL %s\n" : "OK\n", |
| 812 | err ? error_get_pretty(err) : NULL); |
| 813 | error_free(err); |
| 814 | } else if (process_command_cb && process_command_cb(chr, words)) { |
| 815 | /* Command got consumed by the callback handler */ |
| 816 | } else { |
| 817 | qtest_sendf(chr, "FAIL Unknown command '%s'\n", words[0]); |
| 818 | } |
| 819 | } |
| 820 | |
| 821 | /* |
| 822 | * Process as much of @inbuf as we can in newline terminated chunks. |
| 823 | * Remove the processed commands from @inbuf as we go. |
| 824 | */ |
| 825 | static void qtest_process_inbuf(CharFrontend *chr, GString *inbuf) |
| 826 | { |
| 827 | char *end; |
| 828 | |
| 829 | while ((end = strchr(inbuf->str, '\n')) != NULL) { |
| 830 | size_t len = end - inbuf->str; |
| 831 | g_autofree char *cmd = g_strndup(inbuf->str, len); |
| 832 | g_auto(GStrv) words = g_strsplit(cmd, " ", 0); |
| 833 | |
| 834 | g_string_erase(inbuf, 0, len + 1); |
| 835 | qtest_process_command(chr, words); |
| 836 | } |
| 837 | } |
| 838 | |
| 839 | static void qtest_read(void *opaque, const uint8_t *buf, int size) |
| 840 | { |
| 841 | CharFrontend *chr = opaque; |
| 842 | |
| 843 | g_string_append_len(inbuf, (const gchar *)buf, size); |
| 844 | qtest_process_inbuf(chr, inbuf); |
| 845 | } |
| 846 | |
| 847 | static int qtest_can_read(void *opaque) |
| 848 | { |
| 849 | return 1024; |
| 850 | } |
| 851 | |
| 852 | static void qtest_event(void *opaque, QEMUChrEvent event) |
| 853 | { |
| 854 | int i; |
| 855 | |
| 856 | switch (event) { |
| 857 | case CHR_EVENT_OPENED: |
| 858 | /* |
| 859 | * We used to call qemu_system_reset() here, hoping we could |
| 860 | * use the same process for multiple tests that way. Never |
| 861 | * used. Injects an extra reset even when it's not used, and |
| 862 | * that can mess up tests, e.g. -boot once. |
| 863 | */ |
| 864 | for (i = 0; i < ARRAY_SIZE(irq_levels); i++) { |
| 865 | irq_levels[i] = 0; |
| 866 | } |
| 867 | |
| 868 | g_clear_pointer(&timer, g_timer_destroy); |
| 869 | timer = g_timer_new(); |
| 870 | qtest_opened = true; |
| 871 | if (qtest_log_fp) { |
| 872 | fprintf(qtest_log_fp, "[I " FMT_timeval "] OPENED\n", g_timer_elapsed(timer, NULL)); |
| 873 | } |
| 874 | break; |
| 875 | case CHR_EVENT_CLOSED: |
| 876 | if (!qtest_opened) { |
| 877 | /* Ignore CLOSED events if we have already closed the log */ |
| 878 | break; |
| 879 | } |
| 880 | qtest_opened = false; |
| 881 | if (qtest_log_fp) { |
| 882 | fprintf(qtest_log_fp, "[I +" FMT_timeval "] CLOSED\n", g_timer_elapsed(timer, NULL)); |
| 883 | } |
| 884 | g_clear_pointer(&timer, g_timer_destroy); |
| 885 | break; |
| 886 | default: |
| 887 | break; |
| 888 | } |
| 889 | } |
| 890 | |
| 891 | void qtest_server_init(const char *qtest_chrdev, const char *qtest_log, Error **errp) |
| 892 | { |
| 893 | ERRP_GUARD(); |
| 894 | Chardev *chr; |
| 895 | Object *qobj; |
| 896 | |
| 897 | chr = qemu_chr_new("qtest", qtest_chrdev, NULL); |
| 898 | if (chr == NULL) { |
| 899 | error_setg(errp, "Failed to initialize device for qtest: \"%s\"", |
| 900 | qtest_chrdev); |
| 901 | return; |
| 902 | } |
| 903 | |
| 904 | qobj = object_new(TYPE_QTEST); |
| 905 | object_property_set_str(qobj, "chardev", chr->label, &error_abort); |
| 906 | if (qtest_log) { |
| 907 | object_property_set_str(qobj, "log", qtest_log, &error_abort); |
| 908 | } |
| 909 | object_property_add_child(qdev_get_machine(), "qtest", qobj); |
| 910 | user_creatable_complete(USER_CREATABLE(qobj), errp); |
| 911 | if (*errp) { |
| 912 | object_unparent(qobj); |
| 913 | } |
| 914 | object_unref(OBJECT(chr)); |
| 915 | object_unref(qobj); |
| 916 | } |
| 917 | |
| 918 | static bool qtest_server_start(QTest *q, Error **errp) |
| 919 | { |
| 920 | Chardev *chr = q->chr; |
| 921 | const char *qtest_log = q->log; |
| 922 | |
| 923 | if (qtest_log) { |
| 924 | if (strcmp(qtest_log, "none") != 0) { |
| 925 | qtest_log_fp = fopen(qtest_log, "w+"); |
| 926 | } |
| 927 | } else { |
| 928 | qtest_log_fp = stderr; |
| 929 | } |
| 930 | |
| 931 | if (!qemu_chr_fe_init(&q->qtest_chr, chr, errp)) { |
| 932 | return false; |
| 933 | } |
| 934 | qemu_chr_fe_set_handlers(&q->qtest_chr, qtest_can_read, qtest_read, |
| 935 | qtest_event, NULL, &q->qtest_chr, NULL, true); |
| 936 | qemu_chr_fe_set_echo(&q->qtest_chr, true); |
| 937 | |
| 938 | inbuf = g_string_new(""); |
| 939 | |
| 940 | if (!qtest_server_send) { |
| 941 | qtest_server_set_send_handler(qtest_server_char_be_send, &q->qtest_chr); |
| 942 | } |
| 943 | qtest = q; |
| 944 | return true; |
| 945 | } |
| 946 | |
| 947 | void qtest_server_set_send_handler(void (*send)(void*, const char*), |
| 948 | void *opaque) |
| 949 | { |
| 950 | qtest_server_send = send; |
| 951 | qtest_server_send_opaque = opaque; |
| 952 | } |
| 953 | |
| 954 | bool qtest_driver(void) |
| 955 | { |
| 956 | return qtest && qtest->qtest_chr.chr != NULL; |
| 957 | } |
| 958 | |
| 959 | void qtest_server_inproc_recv(void *dummy, const char *buf) |
| 960 | { |
| 961 | static GString *gstr; |
| 962 | if (!gstr) { |
| 963 | gstr = g_string_new(NULL); |
| 964 | } |
| 965 | g_string_append(gstr, buf); |
| 966 | if (gstr->str[gstr->len - 1] == '\n') { |
| 967 | qtest_process_inbuf(NULL, gstr); |
| 968 | g_string_truncate(gstr, 0); |
| 969 | } |
| 970 | } |
| 971 | |
| 972 | static void qtest_complete(UserCreatable *uc, Error **errp) |
| 973 | { |
| 974 | QTest *q = QTEST(uc); |
| 975 | if (qtest) { |
| 976 | error_setg(errp, "Only one instance of qtest can be created"); |
| 977 | return; |
| 978 | } |
| 979 | if (!q->chr_name) { |
| 980 | error_setg(errp, "No backend specified"); |
| 981 | return; |
| 982 | } |
| 983 | |
| 984 | if (OBJECT(uc)->parent != qdev_get_machine()) { |
| 985 | q->has_machine_link = true; |
| 986 | object_property_add_const_link(qdev_get_machine(), "qtest", OBJECT(uc)); |
| 987 | } else { |
| 988 | /* -qtest was used. */ |
| 989 | } |
| 990 | |
| 991 | qtest_server_start(q, errp); |
| 992 | } |
| 993 | |
| 994 | static void qtest_unparent(Object *obj) |
| 995 | { |
| 996 | QTest *q = QTEST(obj); |
| 997 | |
| 998 | if (qtest == q) { |
| 999 | qemu_chr_fe_disconnect(&q->qtest_chr); |
| 1000 | assert(!qtest_opened); |
| 1001 | qemu_chr_fe_deinit(&q->qtest_chr, false); |
| 1002 | if (qtest_log_fp) { |
| 1003 | fclose(qtest_log_fp); |
| 1004 | qtest_log_fp = NULL; |
| 1005 | } |
| 1006 | qtest = NULL; |
| 1007 | } |
| 1008 | |
| 1009 | if (q->has_machine_link) { |
| 1010 | object_property_del(qdev_get_machine(), "qtest"); |
| 1011 | q->has_machine_link = false; |
| 1012 | } |
| 1013 | } |
| 1014 | |
| 1015 | static void qtest_set_log(Object *obj, const char *value, Error **errp) |
| 1016 | { |
| 1017 | QTest *q = QTEST(obj); |
| 1018 | |
| 1019 | if (qtest == q) { |
| 1020 | error_setg(errp, "Property 'log' can not be set now"); |
| 1021 | } else { |
| 1022 | g_free(q->log); |
| 1023 | q->log = g_strdup(value); |
| 1024 | } |
| 1025 | } |
| 1026 | |
| 1027 | static char *qtest_get_log(Object *obj, Error **errp) |
| 1028 | { |
| 1029 | QTest *q = QTEST(obj); |
| 1030 | |
| 1031 | return g_strdup(q->log); |
| 1032 | } |
| 1033 | |
| 1034 | static void qtest_set_chardev(Object *obj, const char *value, Error **errp) |
| 1035 | { |
| 1036 | QTest *q = QTEST(obj); |
| 1037 | Chardev *chr; |
| 1038 | |
| 1039 | if (qtest == q) { |
| 1040 | error_setg(errp, "Property 'chardev' can not be set now"); |
| 1041 | return; |
| 1042 | } |
| 1043 | |
| 1044 | chr = qemu_chr_find(value); |
| 1045 | if (!chr) { |
| 1046 | error_setg(errp, "Cannot find character device '%s'", value); |
| 1047 | return; |
| 1048 | } |
| 1049 | |
| 1050 | g_free(q->chr_name); |
| 1051 | q->chr_name = g_strdup(value); |
| 1052 | |
| 1053 | if (q->chr) { |
| 1054 | object_unref(q->chr); |
| 1055 | } |
| 1056 | q->chr = chr; |
| 1057 | object_ref(chr); |
| 1058 | } |
| 1059 | |
| 1060 | static char *qtest_get_chardev(Object *obj, Error **errp) |
| 1061 | { |
| 1062 | QTest *q = QTEST(obj); |
| 1063 | |
| 1064 | return g_strdup(q->chr_name); |
| 1065 | } |
| 1066 | |
| 1067 | static void qtest_class_init(ObjectClass *oc, const void *data) |
| 1068 | { |
| 1069 | UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc); |
| 1070 | |
| 1071 | oc->unparent = qtest_unparent; |
| 1072 | ucc->complete = qtest_complete; |
| 1073 | |
| 1074 | object_class_property_add_str(oc, "chardev", |
| 1075 | qtest_get_chardev, qtest_set_chardev); |
| 1076 | object_class_property_add_str(oc, "log", |
| 1077 | qtest_get_log, qtest_set_log); |
| 1078 | } |
| 1079 | |
| 1080 | static void qtest_finalize(Object *obj) |
| 1081 | { |
| 1082 | QTest *q = QTEST(obj); |
| 1083 | |
| 1084 | g_free(q->chr_name); |
| 1085 | g_free(q->log); |
| 1086 | object_unref(q->chr); |
| 1087 | } |
| 1088 | |
| 1089 | static const TypeInfo qtest_info = { |
| 1090 | .name = TYPE_QTEST, |
| 1091 | .parent = TYPE_OBJECT, |
| 1092 | .class_init = qtest_class_init, |
| 1093 | .instance_finalize = qtest_finalize, |
| 1094 | .instance_size = sizeof(QTest), |
| 1095 | .interfaces = (const InterfaceInfo[]) { |
| 1096 | { TYPE_USER_CREATABLE }, |
| 1097 | { } |
| 1098 | } |
| 1099 | }; |
| 1100 | |
| 1101 | static void register_types(void) |
| 1102 | { |
| 1103 | type_register_static(&qtest_info); |
| 1104 | } |
| 1105 | |
| 1106 | type_init(register_types); |