tests/acpi-test.c

   1 /*
   2  * Boot order test cases.
   3  *
   4  * Copyright (c) 2013 Red Hat Inc.
   5  *
   6  * Authors:
   7  *  Michael S. Tsirkin <mst@redhat.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 #include <string.h>
  14 #include <stdio.h>
  15 #include <glib.h>
  16 #include <glib/gstdio.h>
  17 #include "qemu-common.h"
  18 #include "libqtest.h"
  19 #include "qemu/compiler.h"
  20 #include "hw/i386/acpi-defs.h"
  21
  22 #define MACHINE_PC "pc"
  23 #define MACHINE_Q35 "q35"
  24
  25 #define ACPI_REBUILD_EXPECTED_AML "TEST_ACPI_REBUILD_AML"
  26 #define ACPI_SSDT_SIGNATURE 0x54445353 /* SSDT */
  27
  28 /* DSDT and SSDTs format */
  29 typedef struct {
  30     AcpiTableHeader header;
  31     gchar *aml;            /* aml bytecode from guest */
  32     gsize aml_len;
  33     gchar *aml_file;
  34     gchar *asl;            /* asl code generated from aml */
  35     gsize asl_len;
  36     gchar *asl_file;
  37     bool asl_file_retain;   /* do not delete the temp asl */
  38 } QEMU_PACKED AcpiSdtTable;
  39
  40 typedef struct {
  41     const char *machine;
  42     uint32_t rsdp_addr;
  43     AcpiRsdpDescriptor rsdp_table;
  44     AcpiRsdtDescriptorRev1 rsdt_table;
  45     AcpiFadtDescriptorRev1 fadt_table;
  46     AcpiFacsDescriptorRev1 facs_table;
  47     uint32_t *rsdt_tables_addr;
  48     int rsdt_tables_nr;
  49     GArray *tables;
  50 } test_data;
  51
  52 #define LOW(x) ((x) & 0xff)
  53 #define HIGH(x) ((x) >> 8)
  54
  55 #define SIGNATURE 0xdead
  56 #define SIGNATURE_OFFSET 0x10
  57 #define BOOT_SECTOR_ADDRESS 0x7c00
  58
  59 #define ACPI_READ_FIELD(field, addr)           \
  60     do {                                       \
  61         switch (sizeof(field)) {               \
  62         case 1:                                \
  63             field = readb(addr);               \
  64             break;                             \
  65         case 2:                                \
  66             field = readw(addr);               \
  67             break;                             \
  68         case 4:                                \
  69             field = readl(addr);               \
  70             break;                             \
  71         case 8:                                \
  72             field = readq(addr);               \
  73             break;                             \
  74         default:                               \
  75             g_assert(false);                   \
  76         }                                      \
  77         addr += sizeof(field);                  \
  78     } while (0);
  79
  80 #define ACPI_READ_ARRAY_PTR(arr, length, addr)  \
  81     do {                                        \
  82         int idx;                                \
  83         for (idx = 0; idx < length; ++idx) {    \
  84             ACPI_READ_FIELD(arr[idx], addr);    \
  85         }                                       \
  86     } while (0);
  87
  88 #define ACPI_READ_ARRAY(arr, addr)                               \
  89     ACPI_READ_ARRAY_PTR(arr, sizeof(arr)/sizeof(arr[0]), addr)
  90
  91 #define ACPI_READ_TABLE_HEADER(table, addr)                      \
  92     do {                                                         \
  93         ACPI_READ_FIELD((table)->signature, addr);               \
  94         ACPI_READ_FIELD((table)->length, addr);                  \
  95         ACPI_READ_FIELD((table)->revision, addr);                \
  96         ACPI_READ_FIELD((table)->checksum, addr);                \
  97         ACPI_READ_ARRAY((table)->oem_id, addr);                  \
  98         ACPI_READ_ARRAY((table)->oem_table_id, addr);            \
  99         ACPI_READ_FIELD((table)->oem_revision, addr);            \
 100         ACPI_READ_ARRAY((table)->asl_compiler_id, addr);         \
 101         ACPI_READ_FIELD((table)->asl_compiler_revision, addr);   \
 102     } while (0);
 103
 104 /* Boot sector code: write SIGNATURE into memory,
 105  * then halt.
 106  * Q35 machine requires a minimum 0x7e000 bytes disk.
 107  * (bug or feature?)
 108  */
 109 static uint8_t boot_sector[0x7e000] = {
 110     /* 7c00: mov $0xdead,%ax */
 111     [0x00] = 0xb8,
 112     [0x01] = LOW(SIGNATURE),
 113     [0x02] = HIGH(SIGNATURE),
 114     /* 7c03:  mov %ax,0x7c10 */
 115     [0x03] = 0xa3,
 116     [0x04] = LOW(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
 117     [0x05] = HIGH(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
 118     /* 7c06: cli */
 119     [0x06] = 0xfa,
 120     /* 7c07: hlt */
 121     [0x07] = 0xf4,
 122     /* 7c08: jmp 0x7c07=0x7c0a-3 */
 123     [0x08] = 0xeb,
 124     [0x09] = LOW(-3),
 125     /* We mov 0xdead here: set value to make debugging easier */
 126     [SIGNATURE_OFFSET] = LOW(0xface),
 127     [SIGNATURE_OFFSET + 1] = HIGH(0xface),
 128     /* End of boot sector marker */
 129     [0x1FE] = 0x55,
 130     [0x1FF] = 0xAA,
 131 };
 132
 133 static const char *disk = "tests/acpi-test-disk.raw";
 134 static const char *data_dir = "tests/acpi-test-data";
 135 #ifdef CONFIG_IASL
 136 static const char *iasl = stringify(CONFIG_IASL);
 137 #else
 138 static const char *iasl;
 139 #endif
 140
 141 static void free_test_data(test_data *data)
 142 {
 143     AcpiSdtTable *temp;
 144     int i;
 145
 146     if (data->rsdt_tables_addr) {
 147         g_free(data->rsdt_tables_addr);
 148     }
 149
 150     for (i = 0; i < data->tables->len; ++i) {
 151         temp = &g_array_index(data->tables, AcpiSdtTable, i);
 152         if (temp->aml) {
 153             g_free(temp->aml);
 154         }
 155         if (temp->aml_file) {
 156             if (g_strstr_len(temp->aml_file, -1, "aml-")) {
 157                 unlink(temp->aml_file);
 158             }
 159             g_free(temp->aml_file);
 160         }
 161         if (temp->asl) {
 162             g_free(temp->asl);
 163         }
 164         if (temp->asl_file) {
 165             if (!temp->asl_file_retain) {
 166                 unlink(temp->asl_file);
 167             }
 168             g_free(temp->asl_file);
 169         }
 170     }
 171
 172     g_array_free(data->tables, false);
 173 }
 174
 175 static uint8_t acpi_checksum(const uint8_t *data, int len)
 176 {
 177     int i;
 178     uint8_t sum = 0;
 179
 180     for (i = 0; i < len; i++) {
 181         sum += data[i];
 182     }
 183
 184     return sum;
 185 }
 186
 187 static void test_acpi_rsdp_address(test_data *data)
 188 {
 189     uint32_t off;
 190
 191     /* OK, now find RSDP */
 192     for (off = 0xf0000; off < 0x100000; off += 0x10) {
 193         uint8_t sig[] = "RSD PTR ";
 194         int i;
 195
 196         for (i = 0; i < sizeof sig - 1; ++i) {
 197             sig[i] = readb(off + i);
 198         }
 199
 200         if (!memcmp(sig, "RSD PTR ", sizeof sig)) {
 201             break;
 202         }
 203     }
 204
 205     g_assert_cmphex(off, <, 0x100000);
 206     data->rsdp_addr = off;
 207 }
 208
 209 static void test_acpi_rsdp_table(test_data *data)
 210 {
 211     AcpiRsdpDescriptor *rsdp_table = &data->rsdp_table;
 212     uint32_t addr = data->rsdp_addr;
 213
 214     ACPI_READ_FIELD(rsdp_table->signature, addr);
 215     g_assert_cmphex(rsdp_table->signature, ==, ACPI_RSDP_SIGNATURE);
 216
 217     ACPI_READ_FIELD(rsdp_table->checksum, addr);
 218     ACPI_READ_ARRAY(rsdp_table->oem_id, addr);
 219     ACPI_READ_FIELD(rsdp_table->revision, addr);
 220     ACPI_READ_FIELD(rsdp_table->rsdt_physical_address, addr);
 221     ACPI_READ_FIELD(rsdp_table->length, addr);
 222
 223     /* rsdp checksum is not for the whole table, but for the first 20 bytes */
 224     g_assert(!acpi_checksum((uint8_t *)rsdp_table, 20));
 225 }
 226
 227 static void test_acpi_rsdt_table(test_data *data)
 228 {
 229     AcpiRsdtDescriptorRev1 *rsdt_table = &data->rsdt_table;
 230     uint32_t addr = data->rsdp_table.rsdt_physical_address;
 231     uint32_t *tables;
 232     int tables_nr;
 233     uint8_t checksum;
 234
 235     /* read the header */
 236     ACPI_READ_TABLE_HEADER(rsdt_table, addr);
 237     g_assert_cmphex(rsdt_table->signature, ==, ACPI_RSDT_SIGNATURE);
 238
 239     /* compute the table entries in rsdt */
 240     tables_nr = (rsdt_table->length - sizeof(AcpiRsdtDescriptorRev1)) /
 241                 sizeof(uint32_t);
 242     g_assert_cmpint(tables_nr, >, 0);
 243
 244     /* get the addresses of the tables pointed by rsdt */
 245     tables = g_new0(uint32_t, tables_nr);
 246     ACPI_READ_ARRAY_PTR(tables, tables_nr, addr);
 247
 248     checksum = acpi_checksum((uint8_t *)rsdt_table, rsdt_table->length) +
 249                acpi_checksum((uint8_t *)tables, tables_nr * sizeof(uint32_t));
 250     g_assert(!checksum);
 251
 252    /* SSDT tables after FADT */
 253     data->rsdt_tables_addr = tables;
 254     data->rsdt_tables_nr = tables_nr;
 255 }
 256
 257 static void test_acpi_fadt_table(test_data *data)
 258 {
 259     AcpiFadtDescriptorRev1 *fadt_table = &data->fadt_table;
 260     uint32_t addr;
 261
 262     /* FADT table comes first */
 263     addr = data->rsdt_tables_addr[0];
 264     ACPI_READ_TABLE_HEADER(fadt_table, addr);
 265
 266     ACPI_READ_FIELD(fadt_table->firmware_ctrl, addr);
 267     ACPI_READ_FIELD(fadt_table->dsdt, addr);
 268     ACPI_READ_FIELD(fadt_table->model, addr);
 269     ACPI_READ_FIELD(fadt_table->reserved1, addr);
 270     ACPI_READ_FIELD(fadt_table->sci_int, addr);
 271     ACPI_READ_FIELD(fadt_table->smi_cmd, addr);
 272     ACPI_READ_FIELD(fadt_table->acpi_enable, addr);
 273     ACPI_READ_FIELD(fadt_table->acpi_disable, addr);
 274     ACPI_READ_FIELD(fadt_table->S4bios_req, addr);
 275     ACPI_READ_FIELD(fadt_table->reserved2, addr);
 276     ACPI_READ_FIELD(fadt_table->pm1a_evt_blk, addr);
 277     ACPI_READ_FIELD(fadt_table->pm1b_evt_blk, addr);
 278     ACPI_READ_FIELD(fadt_table->pm1a_cnt_blk, addr);
 279     ACPI_READ_FIELD(fadt_table->pm1b_cnt_blk, addr);
 280     ACPI_READ_FIELD(fadt_table->pm2_cnt_blk, addr);
 281     ACPI_READ_FIELD(fadt_table->pm_tmr_blk, addr);
 282     ACPI_READ_FIELD(fadt_table->gpe0_blk, addr);
 283     ACPI_READ_FIELD(fadt_table->gpe1_blk, addr);
 284     ACPI_READ_FIELD(fadt_table->pm1_evt_len, addr);
 285     ACPI_READ_FIELD(fadt_table->pm1_cnt_len, addr);
 286     ACPI_READ_FIELD(fadt_table->pm2_cnt_len, addr);
 287     ACPI_READ_FIELD(fadt_table->pm_tmr_len, addr);
 288     ACPI_READ_FIELD(fadt_table->gpe0_blk_len, addr);
 289     ACPI_READ_FIELD(fadt_table->gpe1_blk_len, addr);
 290     ACPI_READ_FIELD(fadt_table->gpe1_base, addr);
 291     ACPI_READ_FIELD(fadt_table->reserved3, addr);
 292     ACPI_READ_FIELD(fadt_table->plvl2_lat, addr);
 293     ACPI_READ_FIELD(fadt_table->plvl3_lat, addr);
 294     ACPI_READ_FIELD(fadt_table->flush_size, addr);
 295     ACPI_READ_FIELD(fadt_table->flush_stride, addr);
 296     ACPI_READ_FIELD(fadt_table->duty_offset, addr);
 297     ACPI_READ_FIELD(fadt_table->duty_width, addr);
 298     ACPI_READ_FIELD(fadt_table->day_alrm, addr);
 299     ACPI_READ_FIELD(fadt_table->mon_alrm, addr);
 300     ACPI_READ_FIELD(fadt_table->century, addr);
 301     ACPI_READ_FIELD(fadt_table->reserved4, addr);
 302     ACPI_READ_FIELD(fadt_table->reserved4a, addr);
 303     ACPI_READ_FIELD(fadt_table->reserved4b, addr);
 304     ACPI_READ_FIELD(fadt_table->flags, addr);
 305
 306     g_assert_cmphex(fadt_table->signature, ==, ACPI_FACP_SIGNATURE);
 307     g_assert(!acpi_checksum((uint8_t *)fadt_table, fadt_table->length));
 308 }
 309
 310 static void test_acpi_facs_table(test_data *data)
 311 {
 312     AcpiFacsDescriptorRev1 *facs_table = &data->facs_table;
 313     uint32_t addr = data->fadt_table.firmware_ctrl;
 314
 315     ACPI_READ_FIELD(facs_table->signature, addr);
 316     ACPI_READ_FIELD(facs_table->length, addr);
 317     ACPI_READ_FIELD(facs_table->hardware_signature, addr);
 318     ACPI_READ_FIELD(facs_table->firmware_waking_vector, addr);
 319     ACPI_READ_FIELD(facs_table->global_lock, addr);
 320     ACPI_READ_FIELD(facs_table->flags, addr);
 321     ACPI_READ_ARRAY(facs_table->resverved3, addr);
 322
 323     g_assert_cmphex(facs_table->signature, ==, ACPI_FACS_SIGNATURE);
 324 }
 325
 326 static void test_dst_table(AcpiSdtTable *sdt_table, uint32_t addr)
 327 {
 328     uint8_t checksum;
 329
 330     ACPI_READ_TABLE_HEADER(&sdt_table->header, addr);
 331
 332     sdt_table->aml_len = sdt_table->header.length - sizeof(AcpiTableHeader);
 333     sdt_table->aml = g_malloc0(sdt_table->aml_len);
 334     ACPI_READ_ARRAY_PTR(sdt_table->aml, sdt_table->aml_len, addr);
 335
 336     checksum = acpi_checksum((uint8_t *)sdt_table, sizeof(AcpiTableHeader)) +
 337                acpi_checksum((uint8_t *)sdt_table->aml, sdt_table->aml_len);
 338     g_assert(!checksum);
 339 }
 340
 341 static void test_acpi_dsdt_table(test_data *data)
 342 {
 343     AcpiSdtTable dsdt_table;
 344     uint32_t addr = data->fadt_table.dsdt;
 345
 346     memset(&dsdt_table, 0, sizeof(dsdt_table));
 347     data->tables = g_array_new(false, true, sizeof(AcpiSdtTable));
 348
 349     test_dst_table(&dsdt_table, addr);
 350     g_assert_cmphex(dsdt_table.header.signature, ==, ACPI_DSDT_SIGNATURE);
 351
 352     /* Place DSDT first */
 353     g_array_append_val(data->tables, dsdt_table);
 354 }
 355
 356 static void test_acpi_tables(test_data *data)
 357 {
 358     int tables_nr = data->rsdt_tables_nr - 1; /* fadt is first */
 359     int i;
 360
 361     for (i = 0; i < tables_nr; i++) {
 362         AcpiSdtTable ssdt_table;
 363
 364         memset(&ssdt_table, 0 , sizeof(ssdt_table));
 365         uint32_t addr = data->rsdt_tables_addr[i + 1]; /* fadt is first */
 366         test_dst_table(&ssdt_table, addr);
 367         g_array_append_val(data->tables, ssdt_table);
 368     }
 369 }
 370
 371 static void dump_aml_files(test_data *data, bool rebuild)
 372 {
 373     AcpiSdtTable *sdt;
 374     GError *error = NULL;
 375     gchar *aml_file = NULL;
 376     gint fd;
 377     ssize_t ret;
 378     int i;
 379
 380     for (i = 0; i < data->tables->len; ++i) {
 381         sdt = &g_array_index(data->tables, AcpiSdtTable, i);
 382         g_assert(sdt->aml);
 383
 384         if (rebuild) {
 385             aml_file = g_strdup_printf("%s/%s/%.4s", data_dir, data->machine,
 386                                        (gchar *)&sdt->header.signature);
 387             fd = g_open(aml_file, O_WRONLY|O_TRUNC|O_CREAT,
 388                         S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
 389         } else {
 390             fd = g_file_open_tmp("aml-XXXXXX", &sdt->aml_file, &error);
 391             g_assert_no_error(error);
 392         }
 393         g_assert(fd >= 0);
 394
 395         ret = qemu_write_full(fd, sdt, sizeof(AcpiTableHeader));
 396         g_assert(ret == sizeof(AcpiTableHeader));
 397         ret = qemu_write_full(fd, sdt->aml, sdt->aml_len);
 398         g_assert(ret == sdt->aml_len);
 399
 400         close(fd);
 401
 402         if (aml_file) {
 403             g_free(aml_file);
 404         }
 405     }
 406 }
 407
 408 static bool compare_signature(AcpiSdtTable *sdt, uint32_t signature)
 409 {
 410    return sdt->header.signature == signature;
 411 }
 412
 413 static void load_asl(GArray *sdts, AcpiSdtTable *sdt)
 414 {
 415     AcpiSdtTable *temp;
 416     GError *error = NULL;
 417     GString *command_line = g_string_new(iasl);
 418     gint fd;
 419     gchar *out, *out_err;
 420     gboolean ret;
 421     int i;
 422
 423     fd = g_file_open_tmp("asl-XXXXXX.dsl", &sdt->asl_file, &error);
 424     g_assert_no_error(error);
 425     close(fd);
 426
 427     /* build command line */
 428     g_string_append_printf(command_line, " -p %s ", sdt->asl_file);
 429     if (compare_signature(sdt, ACPI_DSDT_SIGNATURE) ||
 430         compare_signature(sdt, ACPI_SSDT_SIGNATURE)) {
 431         for (i = 0; i < sdts->len; ++i) {
 432             temp = &g_array_index(sdts, AcpiSdtTable, i);
 433             if (compare_signature(temp, ACPI_DSDT_SIGNATURE) ||
 434                 compare_signature(temp, ACPI_SSDT_SIGNATURE)) {
 435                 g_string_append_printf(command_line, "-e %s ", temp->aml_file);
 436             }
 437         }
 438     }
 439     g_string_append_printf(command_line, "-d %s", sdt->aml_file);
 440
 441     /* pass 'out' and 'out_err' in order to be redirected */
 442     g_spawn_command_line_sync(command_line->str, &out, &out_err, NULL, &error);
 443     g_assert_no_error(error);
 444
 445     ret = g_file_get_contents(sdt->asl_file, (gchar **)&sdt->asl,
 446                               &sdt->asl_len, &error);
 447     g_assert(ret);
 448     g_assert_no_error(error);
 449     g_assert(sdt->asl_len);
 450
 451     g_free(out);
 452     g_free(out_err);
 453     g_string_free(command_line, true);
 454 }
 455
 456 #define COMMENT_END "*/"
 457 #define DEF_BLOCK "DefinitionBlock ("
 458 #define BLOCK_NAME_END ".aml"
 459
 460 static GString *normalize_asl(gchar *asl_code)
 461 {
 462     GString *asl = g_string_new(asl_code);
 463     gchar *comment, *block_name;
 464
 465     /* strip comments (different generation days) */
 466     comment = g_strstr_len(asl->str, asl->len, COMMENT_END);
 467     if (comment) {
 468         asl = g_string_erase(asl, 0, comment + sizeof(COMMENT_END) - asl->str);
 469     }
 470
 471     /* strip def block name (it has file path in it) */
 472     if (g_str_has_prefix(asl->str, DEF_BLOCK)) {
 473         block_name = g_strstr_len(asl->str, asl->len, BLOCK_NAME_END);
 474         g_assert(block_name);
 475         asl = g_string_erase(asl, 0,
 476                              block_name + sizeof(BLOCK_NAME_END) - asl->str);
 477     }
 478
 479     return asl;
 480 }
 481
 482 static GArray *load_expected_aml(test_data *data)
 483 {
 484     int i;
 485     AcpiSdtTable *sdt;
 486     gchar *aml_file;
 487     GError *error = NULL;
 488     gboolean ret;
 489
 490     GArray *exp_tables = g_array_new(false, true, sizeof(AcpiSdtTable));
 491     for (i = 0; i < data->tables->len; ++i) {
 492         AcpiSdtTable exp_sdt;
 493         sdt = &g_array_index(data->tables, AcpiSdtTable, i);
 494
 495         memset(&exp_sdt, 0, sizeof(exp_sdt));
 496         exp_sdt.header.signature = sdt->header.signature;
 497
 498         aml_file = g_strdup_printf("%s/%s/%.4s", data_dir, data->machine,
 499                                    (gchar *)&exp_sdt.header.signature);
 500         exp_sdt.aml_file = aml_file;
 501         g_assert(g_file_test(aml_file, G_FILE_TEST_EXISTS));
 502         ret = g_file_get_contents(aml_file, &exp_sdt.aml,
 503                                   &exp_sdt.aml_len, &error);
 504         g_assert(ret);
 505         g_assert_no_error(error);
 506         g_assert(exp_sdt.aml);
 507         g_assert(exp_sdt.aml_len);
 508
 509         g_array_append_val(exp_tables, exp_sdt);
 510     }
 511
 512     return exp_tables;
 513 }
 514
 515 static void test_acpi_asl(test_data *data)
 516 {
 517     int i;
 518     AcpiSdtTable *sdt, *exp_sdt;
 519     test_data exp_data;
 520
 521     memset(&exp_data, 0, sizeof(exp_data));
 522     exp_data.tables = load_expected_aml(data);
 523     dump_aml_files(data, false);
 524     for (i = 0; i < data->tables->len; ++i) {
 525         GString *asl, *exp_asl;
 526
 527         sdt = &g_array_index(data->tables, AcpiSdtTable, i);
 528         exp_sdt = &g_array_index(exp_data.tables, AcpiSdtTable, i);
 529
 530         load_asl(data->tables, sdt);
 531         asl = normalize_asl(sdt->asl);
 532
 533         load_asl(exp_data.tables, exp_sdt);
 534         exp_asl = normalize_asl(exp_sdt->asl);
 535
 536         if (g_strcmp0(asl->str, exp_asl->str)) {
 537             sdt->asl_file_retain = true;
 538             exp_sdt->asl_file_retain = true;
 539             fprintf(stderr,
 540                     "acpi-test: Warning! %.4s mismatch. "
 541                     "Orig asl: %s, expected asl %s.\n",
 542                     (gchar *)&exp_sdt->header.signature,
 543                     sdt->asl_file, exp_sdt->asl_file);
 544         }
 545         g_string_free(asl, true);
 546         g_string_free(exp_asl, true);
 547     }
 548
 549     free_test_data(&exp_data);
 550 }
 551
 552 static void test_acpi_one(const char *params, test_data *data)
 553 {
 554     char *args;
 555     uint8_t signature_low;
 556     uint8_t signature_high;
 557     uint16_t signature;
 558     int i;
 559     const char *device = "";
 560
 561     if (!g_strcmp0(data->machine, MACHINE_Q35)) {
 562         device = ",id=hd -device ide-hd,drive=hd";
 563     }
 564
 565     args = g_strdup_printf("-net none -display none %s -drive file=%s%s,",
 566                            params ? params : "", disk, device);
 567     qtest_start(args);
 568
 569    /* Wait at most 1 minute */
 570 #define TEST_DELAY (1 * G_USEC_PER_SEC / 10)
 571 #define TEST_CYCLES MAX((60 * G_USEC_PER_SEC / TEST_DELAY), 1)
 572
 573     /* Poll until code has run and modified memory.  Once it has we know BIOS
 574      * initialization is done.  TODO: check that IP reached the halt
 575      * instruction.
 576      */
 577     for (i = 0; i < TEST_CYCLES; ++i) {
 578         signature_low = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET);
 579         signature_high = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET + 1);
 580         signature = (signature_high << 8) | signature_low;
 581         if (signature == SIGNATURE) {
 582             break;
 583         }
 584         g_usleep(TEST_DELAY);
 585     }
 586     g_assert_cmphex(signature, ==, SIGNATURE);
 587
 588     test_acpi_rsdp_address(data);
 589     test_acpi_rsdp_table(data);
 590     test_acpi_rsdt_table(data);
 591     test_acpi_fadt_table(data);
 592     test_acpi_facs_table(data);
 593     test_acpi_dsdt_table(data);
 594     test_acpi_tables(data);
 595
 596     if (iasl) {
 597         if (getenv(ACPI_REBUILD_EXPECTED_AML)) {
 598             dump_aml_files(data, true);
 599         } else {
 600             test_acpi_asl(data);
 601         }
 602     }
 603
 604     qtest_quit(global_qtest);
 605     g_free(args);
 606 }
 607
 608 static void test_acpi_tcg(void)
 609 {
 610     test_data data;
 611
 612     /* Supplying -machine accel argument overrides the default (qtest).
 613      * This is to make guest actually run.
 614      */
 615     memset(&data, 0, sizeof(data));
 616     data.machine = MACHINE_PC;
 617     test_acpi_one("-machine accel=tcg", &data);
 618     free_test_data(&data);
 619
 620     memset(&data, 0, sizeof(data));
 621     data.machine = MACHINE_Q35;
 622     test_acpi_one("-machine q35,accel=tcg", &data);
 623     free_test_data(&data);
 624 }
 625
 626 int main(int argc, char *argv[])
 627 {
 628     const char *arch = qtest_get_arch();
 629     FILE *f = fopen(disk, "w");
 630     int ret;
 631     fwrite(boot_sector, 1, sizeof boot_sector, f);
 632     fclose(f);
 633
 634     g_test_init(&argc, &argv, NULL);
 635
 636     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 637         qtest_add_func("acpi/tcg", test_acpi_tcg);
 638     }
 639     ret = g_test_run();
 640     unlink(disk);
 641     return ret;
 642 }