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 tmp_files_retain;   /* do not delete the temp asl/aml */
  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 (!temp->tmp_files_retain &&
 157                 g_strstr_len(temp->aml_file, -1, "aml-")) {
 158                 unlink(temp->aml_file);
 159             }
 160             g_free(temp->aml_file);
 161         }
 162         if (temp->asl) {
 163             g_free(temp->asl);
 164         }
 165         if (temp->asl_file) {
 166             if (!temp->tmp_files_retain) {
 167                 unlink(temp->asl_file);
 168             }
 169             g_free(temp->asl_file);
 170         }
 171     }
 172
 173     g_array_free(data->tables, false);
 174 }
 175
 176 static uint8_t acpi_checksum(const uint8_t *data, int len)
 177 {
 178     int i;
 179     uint8_t sum = 0;
 180
 181     for (i = 0; i < len; i++) {
 182         sum += data[i];
 183     }
 184
 185     return sum;
 186 }
 187
 188 static void test_acpi_rsdp_address(test_data *data)
 189 {
 190     uint32_t off;
 191
 192     /* OK, now find RSDP */
 193     for (off = 0xf0000; off < 0x100000; off += 0x10) {
 194         uint8_t sig[] = "RSD PTR ";
 195         int i;
 196
 197         for (i = 0; i < sizeof sig - 1; ++i) {
 198             sig[i] = readb(off + i);
 199         }
 200
 201         if (!memcmp(sig, "RSD PTR ", sizeof sig)) {
 202             break;
 203         }
 204     }
 205
 206     g_assert_cmphex(off, <, 0x100000);
 207     data->rsdp_addr = off;
 208 }
 209
 210 static void test_acpi_rsdp_table(test_data *data)
 211 {
 212     AcpiRsdpDescriptor *rsdp_table = &data->rsdp_table;
 213     uint32_t addr = data->rsdp_addr;
 214
 215     ACPI_READ_FIELD(rsdp_table->signature, addr);
 216     g_assert_cmphex(rsdp_table->signature, ==, ACPI_RSDP_SIGNATURE);
 217
 218     ACPI_READ_FIELD(rsdp_table->checksum, addr);
 219     ACPI_READ_ARRAY(rsdp_table->oem_id, addr);
 220     ACPI_READ_FIELD(rsdp_table->revision, addr);
 221     ACPI_READ_FIELD(rsdp_table->rsdt_physical_address, addr);
 222     ACPI_READ_FIELD(rsdp_table->length, addr);
 223
 224     /* rsdp checksum is not for the whole table, but for the first 20 bytes */
 225     g_assert(!acpi_checksum((uint8_t *)rsdp_table, 20));
 226 }
 227
 228 static void test_acpi_rsdt_table(test_data *data)
 229 {
 230     AcpiRsdtDescriptorRev1 *rsdt_table = &data->rsdt_table;
 231     uint32_t addr = data->rsdp_table.rsdt_physical_address;
 232     uint32_t *tables;
 233     int tables_nr;
 234     uint8_t checksum;
 235
 236     /* read the header */
 237     ACPI_READ_TABLE_HEADER(rsdt_table, addr);
 238     g_assert_cmphex(rsdt_table->signature, ==, ACPI_RSDT_SIGNATURE);
 239
 240     /* compute the table entries in rsdt */
 241     tables_nr = (rsdt_table->length - sizeof(AcpiRsdtDescriptorRev1)) /
 242                 sizeof(uint32_t);
 243     g_assert_cmpint(tables_nr, >, 0);
 244
 245     /* get the addresses of the tables pointed by rsdt */
 246     tables = g_new0(uint32_t, tables_nr);
 247     ACPI_READ_ARRAY_PTR(tables, tables_nr, addr);
 248
 249     checksum = acpi_checksum((uint8_t *)rsdt_table, rsdt_table->length) +
 250                acpi_checksum((uint8_t *)tables, tables_nr * sizeof(uint32_t));
 251     g_assert(!checksum);
 252
 253    /* SSDT tables after FADT */
 254     data->rsdt_tables_addr = tables;
 255     data->rsdt_tables_nr = tables_nr;
 256 }
 257
 258 static void test_acpi_fadt_table(test_data *data)
 259 {
 260     AcpiFadtDescriptorRev1 *fadt_table = &data->fadt_table;
 261     uint32_t addr;
 262
 263     /* FADT table comes first */
 264     addr = data->rsdt_tables_addr[0];
 265     ACPI_READ_TABLE_HEADER(fadt_table, addr);
 266
 267     ACPI_READ_FIELD(fadt_table->firmware_ctrl, addr);
 268     ACPI_READ_FIELD(fadt_table->dsdt, addr);
 269     ACPI_READ_FIELD(fadt_table->model, addr);
 270     ACPI_READ_FIELD(fadt_table->reserved1, addr);
 271     ACPI_READ_FIELD(fadt_table->sci_int, addr);
 272     ACPI_READ_FIELD(fadt_table->smi_cmd, addr);
 273     ACPI_READ_FIELD(fadt_table->acpi_enable, addr);
 274     ACPI_READ_FIELD(fadt_table->acpi_disable, addr);
 275     ACPI_READ_FIELD(fadt_table->S4bios_req, addr);
 276     ACPI_READ_FIELD(fadt_table->reserved2, addr);
 277     ACPI_READ_FIELD(fadt_table->pm1a_evt_blk, addr);
 278     ACPI_READ_FIELD(fadt_table->pm1b_evt_blk, addr);
 279     ACPI_READ_FIELD(fadt_table->pm1a_cnt_blk, addr);
 280     ACPI_READ_FIELD(fadt_table->pm1b_cnt_blk, addr);
 281     ACPI_READ_FIELD(fadt_table->pm2_cnt_blk, addr);
 282     ACPI_READ_FIELD(fadt_table->pm_tmr_blk, addr);
 283     ACPI_READ_FIELD(fadt_table->gpe0_blk, addr);
 284     ACPI_READ_FIELD(fadt_table->gpe1_blk, addr);
 285     ACPI_READ_FIELD(fadt_table->pm1_evt_len, addr);
 286     ACPI_READ_FIELD(fadt_table->pm1_cnt_len, addr);
 287     ACPI_READ_FIELD(fadt_table->pm2_cnt_len, addr);
 288     ACPI_READ_FIELD(fadt_table->pm_tmr_len, addr);
 289     ACPI_READ_FIELD(fadt_table->gpe0_blk_len, addr);
 290     ACPI_READ_FIELD(fadt_table->gpe1_blk_len, addr);
 291     ACPI_READ_FIELD(fadt_table->gpe1_base, addr);
 292     ACPI_READ_FIELD(fadt_table->reserved3, addr);
 293     ACPI_READ_FIELD(fadt_table->plvl2_lat, addr);
 294     ACPI_READ_FIELD(fadt_table->plvl3_lat, addr);
 295     ACPI_READ_FIELD(fadt_table->flush_size, addr);
 296     ACPI_READ_FIELD(fadt_table->flush_stride, addr);
 297     ACPI_READ_FIELD(fadt_table->duty_offset, addr);
 298     ACPI_READ_FIELD(fadt_table->duty_width, addr);
 299     ACPI_READ_FIELD(fadt_table->day_alrm, addr);
 300     ACPI_READ_FIELD(fadt_table->mon_alrm, addr);
 301     ACPI_READ_FIELD(fadt_table->century, addr);
 302     ACPI_READ_FIELD(fadt_table->reserved4, addr);
 303     ACPI_READ_FIELD(fadt_table->reserved4a, addr);
 304     ACPI_READ_FIELD(fadt_table->reserved4b, addr);
 305     ACPI_READ_FIELD(fadt_table->flags, addr);
 306
 307     g_assert_cmphex(fadt_table->signature, ==, ACPI_FACP_SIGNATURE);
 308     g_assert(!acpi_checksum((uint8_t *)fadt_table, fadt_table->length));
 309 }
 310
 311 static void test_acpi_facs_table(test_data *data)
 312 {
 313     AcpiFacsDescriptorRev1 *facs_table = &data->facs_table;
 314     uint32_t addr = data->fadt_table.firmware_ctrl;
 315
 316     ACPI_READ_FIELD(facs_table->signature, addr);
 317     ACPI_READ_FIELD(facs_table->length, addr);
 318     ACPI_READ_FIELD(facs_table->hardware_signature, addr);
 319     ACPI_READ_FIELD(facs_table->firmware_waking_vector, addr);
 320     ACPI_READ_FIELD(facs_table->global_lock, addr);
 321     ACPI_READ_FIELD(facs_table->flags, addr);
 322     ACPI_READ_ARRAY(facs_table->resverved3, addr);
 323
 324     g_assert_cmphex(facs_table->signature, ==, ACPI_FACS_SIGNATURE);
 325 }
 326
 327 static void test_dst_table(AcpiSdtTable *sdt_table, uint32_t addr)
 328 {
 329     uint8_t checksum;
 330
 331     ACPI_READ_TABLE_HEADER(&sdt_table->header, addr);
 332
 333     sdt_table->aml_len = sdt_table->header.length - sizeof(AcpiTableHeader);
 334     sdt_table->aml = g_malloc0(sdt_table->aml_len);
 335     ACPI_READ_ARRAY_PTR(sdt_table->aml, sdt_table->aml_len, addr);
 336
 337     checksum = acpi_checksum((uint8_t *)sdt_table, sizeof(AcpiTableHeader)) +
 338                acpi_checksum((uint8_t *)sdt_table->aml, sdt_table->aml_len);
 339     g_assert(!checksum);
 340 }
 341
 342 static void test_acpi_dsdt_table(test_data *data)
 343 {
 344     AcpiSdtTable dsdt_table;
 345     uint32_t addr = data->fadt_table.dsdt;
 346
 347     memset(&dsdt_table, 0, sizeof(dsdt_table));
 348     data->tables = g_array_new(false, true, sizeof(AcpiSdtTable));
 349
 350     test_dst_table(&dsdt_table, addr);
 351     g_assert_cmphex(dsdt_table.header.signature, ==, ACPI_DSDT_SIGNATURE);
 352
 353     /* Place DSDT first */
 354     g_array_append_val(data->tables, dsdt_table);
 355 }
 356
 357 static void test_acpi_tables(test_data *data)
 358 {
 359     int tables_nr = data->rsdt_tables_nr - 1; /* fadt is first */
 360     int i;
 361
 362     for (i = 0; i < tables_nr; i++) {
 363         AcpiSdtTable ssdt_table;
 364
 365         memset(&ssdt_table, 0 , sizeof(ssdt_table));
 366         uint32_t addr = data->rsdt_tables_addr[i + 1]; /* fadt is first */
 367         test_dst_table(&ssdt_table, addr);
 368         g_array_append_val(data->tables, ssdt_table);
 369     }
 370 }
 371
 372 static void dump_aml_files(test_data *data, bool rebuild)
 373 {
 374     AcpiSdtTable *sdt;
 375     GError *error = NULL;
 376     gchar *aml_file = NULL;
 377     gint fd;
 378     ssize_t ret;
 379     int i;
 380
 381     for (i = 0; i < data->tables->len; ++i) {
 382         sdt = &g_array_index(data->tables, AcpiSdtTable, i);
 383         g_assert(sdt->aml);
 384
 385         if (rebuild) {
 386             aml_file = g_strdup_printf("%s/%s/%.4s", data_dir, data->machine,
 387                                        (gchar *)&sdt->header.signature);
 388             fd = g_open(aml_file, O_WRONLY|O_TRUNC|O_CREAT,
 389                         S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
 390         } else {
 391             fd = g_file_open_tmp("aml-XXXXXX", &sdt->aml_file, &error);
 392             g_assert_no_error(error);
 393         }
 394         g_assert(fd >= 0);
 395
 396         ret = qemu_write_full(fd, sdt, sizeof(AcpiTableHeader));
 397         g_assert(ret == sizeof(AcpiTableHeader));
 398         ret = qemu_write_full(fd, sdt->aml, sdt->aml_len);
 399         g_assert(ret == sdt->aml_len);
 400
 401         close(fd);
 402
 403         if (aml_file) {
 404             g_free(aml_file);
 405         }
 406     }
 407 }
 408
 409 static bool compare_signature(AcpiSdtTable *sdt, uint32_t signature)
 410 {
 411    return sdt->header.signature == signature;
 412 }
 413
 414 static bool load_asl(GArray *sdts, AcpiSdtTable *sdt)
 415 {
 416     AcpiSdtTable *temp;
 417     GError *error = NULL;
 418     GString *command_line = g_string_new(iasl);
 419     gint fd;
 420     gchar *out, *out_err;
 421     gboolean ret;
 422     int i;
 423
 424     fd = g_file_open_tmp("asl-XXXXXX.dsl", &sdt->asl_file, &error);
 425     g_assert_no_error(error);
 426     close(fd);
 427
 428     /* build command line */
 429     g_string_append_printf(command_line, " -p %s ", sdt->asl_file);
 430     if (compare_signature(sdt, ACPI_DSDT_SIGNATURE) ||
 431         compare_signature(sdt, ACPI_SSDT_SIGNATURE)) {
 432         for (i = 0; i < sdts->len; ++i) {
 433             temp = &g_array_index(sdts, AcpiSdtTable, i);
 434             if (compare_signature(temp, ACPI_DSDT_SIGNATURE) ||
 435                 compare_signature(temp, ACPI_SSDT_SIGNATURE)) {
 436                 g_string_append_printf(command_line, "-e %s ", temp->aml_file);
 437             }
 438         }
 439     }
 440     g_string_append_printf(command_line, "-d %s", sdt->aml_file);
 441
 442     /* pass 'out' and 'out_err' in order to be redirected */
 443     ret = g_spawn_command_line_sync(command_line->str, &out, &out_err, NULL, &error);
 444     g_assert_no_error(error);
 445
 446     if (ret) {
 447         ret = g_file_get_contents(sdt->asl_file, (gchar **)&sdt->asl,
 448                                   &sdt->asl_len, &error);
 449         g_assert(ret);
 450         g_assert_no_error(error);
 451         g_assert(sdt->asl_len);
 452     }
 453
 454     g_free(out);
 455     g_free(out_err);
 456     g_string_free(command_line, true);
 457
 458     return !ret;
 459 }
 460
 461 #define COMMENT_END "*/"
 462 #define DEF_BLOCK "DefinitionBlock ("
 463 #define BLOCK_NAME_END ".aml"
 464
 465 static GString *normalize_asl(gchar *asl_code)
 466 {
 467     GString *asl = g_string_new(asl_code);
 468     gchar *comment, *block_name;
 469
 470     /* strip comments (different generation days) */
 471     comment = g_strstr_len(asl->str, asl->len, COMMENT_END);
 472     if (comment) {
 473         asl = g_string_erase(asl, 0, comment + sizeof(COMMENT_END) - asl->str);
 474     }
 475
 476     /* strip def block name (it has file path in it) */
 477     if (g_str_has_prefix(asl->str, DEF_BLOCK)) {
 478         block_name = g_strstr_len(asl->str, asl->len, BLOCK_NAME_END);
 479         g_assert(block_name);
 480         asl = g_string_erase(asl, 0,
 481                              block_name + sizeof(BLOCK_NAME_END) - asl->str);
 482     }
 483
 484     return asl;
 485 }
 486
 487 static GArray *load_expected_aml(test_data *data)
 488 {
 489     int i;
 490     AcpiSdtTable *sdt;
 491     gchar *aml_file;
 492     GError *error = NULL;
 493     gboolean ret;
 494
 495     GArray *exp_tables = g_array_new(false, true, sizeof(AcpiSdtTable));
 496     for (i = 0; i < data->tables->len; ++i) {
 497         AcpiSdtTable exp_sdt;
 498         sdt = &g_array_index(data->tables, AcpiSdtTable, i);
 499
 500         memset(&exp_sdt, 0, sizeof(exp_sdt));
 501         exp_sdt.header.signature = sdt->header.signature;
 502
 503         aml_file = g_strdup_printf("%s/%s/%.4s", data_dir, data->machine,
 504                                    (gchar *)&exp_sdt.header.signature);
 505         exp_sdt.aml_file = aml_file;
 506         g_assert(g_file_test(aml_file, G_FILE_TEST_EXISTS));
 507         ret = g_file_get_contents(aml_file, &exp_sdt.aml,
 508                                   &exp_sdt.aml_len, &error);
 509         g_assert(ret);
 510         g_assert_no_error(error);
 511         g_assert(exp_sdt.aml);
 512         g_assert(exp_sdt.aml_len);
 513
 514         g_array_append_val(exp_tables, exp_sdt);
 515     }
 516
 517     return exp_tables;
 518 }
 519
 520 static void test_acpi_asl(test_data *data)
 521 {
 522     int i;
 523     AcpiSdtTable *sdt, *exp_sdt;
 524     test_data exp_data;
 525     gboolean exp_err, err;
 526
 527     memset(&exp_data, 0, sizeof(exp_data));
 528     exp_data.tables = load_expected_aml(data);
 529     dump_aml_files(data, false);
 530     for (i = 0; i < data->tables->len; ++i) {
 531         GString *asl, *exp_asl;
 532
 533         sdt = &g_array_index(data->tables, AcpiSdtTable, i);
 534         exp_sdt = &g_array_index(exp_data.tables, AcpiSdtTable, i);
 535
 536         err = load_asl(data->tables, sdt);
 537         asl = normalize_asl(sdt->asl);
 538
 539         exp_err = load_asl(exp_data.tables, exp_sdt);
 540         exp_asl = normalize_asl(exp_sdt->asl);
 541
 542         /* TODO: check for warnings */
 543         g_assert(!err || exp_err);
 544
 545         if (g_strcmp0(asl->str, exp_asl->str)) {
 546             sdt->tmp_files_retain = true;
 547             exp_sdt->tmp_files_retain = true;
 548             fprintf(stderr,
 549                     "acpi-test: Warning! %.4s mismatch. "
 550                     "Actual [asl:%s, aml:%s], Expected [asl:%s, aml:%s].\n",
 551                     (gchar *)&exp_sdt->header.signature,
 552                     sdt->asl_file, sdt->aml_file,
 553                     exp_sdt->asl_file, exp_sdt->aml_file);
 554         }
 555         g_string_free(asl, true);
 556         g_string_free(exp_asl, true);
 557     }
 558
 559     free_test_data(&exp_data);
 560 }
 561
 562 static void test_acpi_one(const char *params, test_data *data)
 563 {
 564     char *args;
 565     uint8_t signature_low;
 566     uint8_t signature_high;
 567     uint16_t signature;
 568     int i;
 569     const char *device = "";
 570
 571     if (!g_strcmp0(data->machine, MACHINE_Q35)) {
 572         device = ",id=hd -device ide-hd,drive=hd";
 573     }
 574
 575     args = g_strdup_printf("-net none -display none %s -drive file=%s%s,",
 576                            params ? params : "", disk, device);
 577     qtest_start(args);
 578
 579    /* Wait at most 1 minute */
 580 #define TEST_DELAY (1 * G_USEC_PER_SEC / 10)
 581 #define TEST_CYCLES MAX((60 * G_USEC_PER_SEC / TEST_DELAY), 1)
 582
 583     /* Poll until code has run and modified memory.  Once it has we know BIOS
 584      * initialization is done.  TODO: check that IP reached the halt
 585      * instruction.
 586      */
 587     for (i = 0; i < TEST_CYCLES; ++i) {
 588         signature_low = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET);
 589         signature_high = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET + 1);
 590         signature = (signature_high << 8) | signature_low;
 591         if (signature == SIGNATURE) {
 592             break;
 593         }
 594         g_usleep(TEST_DELAY);
 595     }
 596     g_assert_cmphex(signature, ==, SIGNATURE);
 597
 598     test_acpi_rsdp_address(data);
 599     test_acpi_rsdp_table(data);
 600     test_acpi_rsdt_table(data);
 601     test_acpi_fadt_table(data);
 602     test_acpi_facs_table(data);
 603     test_acpi_dsdt_table(data);
 604     test_acpi_tables(data);
 605
 606     if (iasl) {
 607         if (getenv(ACPI_REBUILD_EXPECTED_AML)) {
 608             dump_aml_files(data, true);
 609         } else {
 610             test_acpi_asl(data);
 611         }
 612     }
 613
 614     qtest_quit(global_qtest);
 615     g_free(args);
 616 }
 617
 618 static void test_acpi_tcg(void)
 619 {
 620     test_data data;
 621
 622     /* Supplying -machine accel argument overrides the default (qtest).
 623      * This is to make guest actually run.
 624      */
 625     memset(&data, 0, sizeof(data));
 626     data.machine = MACHINE_PC;
 627     test_acpi_one("-machine accel=tcg", &data);
 628     free_test_data(&data);
 629
 630     memset(&data, 0, sizeof(data));
 631     data.machine = MACHINE_Q35;
 632     test_acpi_one("-machine q35,accel=tcg", &data);
 633     free_test_data(&data);
 634 }
 635
 636 int main(int argc, char *argv[])
 637 {
 638     const char *arch = qtest_get_arch();
 639     FILE *f = fopen(disk, "w");
 640     int ret;
 641     fwrite(boot_sector, 1, sizeof boot_sector, f);
 642     fclose(f);
 643
 644     g_test_init(&argc, &argv, NULL);
 645
 646     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 647         qtest_add_func("acpi/tcg", test_acpi_tcg);
 648     }
 649     ret = g_test_run();
 650     unlink(disk);
 651     return ret;
 652 }