aboutsummaryrefslogtreecommitdiff
path: root/tests/bios-tables-test.c
blob: bf3e193ae9b7cc2b0f3e97b4e889b987621fcf17 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
/*
 * Boot order test cases.
 *
 * Copyright (c) 2013 Red Hat Inc.
 *
 * Authors:
 *  Michael S. Tsirkin <mst@redhat.com>,
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */

#include "qemu/osdep.h"
#include <glib/gstdio.h>
#include "qemu-common.h"
#include "hw/smbios/smbios.h"
#include "qemu/bitmap.h"
#include "acpi-utils.h"
#include "boot-sector.h"

#define MACHINE_PC "pc"
#define MACHINE_Q35 "q35"

#define ACPI_REBUILD_EXPECTED_AML "TEST_ACPI_REBUILD_AML"

typedef struct {
    const char *machine;
    const char *variant;
    uint32_t rsdp_addr;
    AcpiRsdpDescriptor rsdp_table;
    AcpiRsdtDescriptorRev1 rsdt_table;
    uint32_t dsdt_addr;
    uint32_t facs_addr;
    AcpiFacsDescriptorRev1 facs_table;
    uint32_t *rsdt_tables_addr;
    int rsdt_tables_nr;
    GArray *tables;
    uint32_t smbios_ep_addr;
    struct smbios_21_entry_point smbios_ep_table;
    uint8_t *required_struct_types;
    int required_struct_types_len;
} test_data;

static char disk[] = "tests/acpi-test-disk-XXXXXX";
static const char *data_dir = "tests/acpi-test-data";
#ifdef CONFIG_IASL
static const char *iasl = stringify(CONFIG_IASL);
#else
static const char *iasl;
#endif

static void free_test_data(test_data *data)
{
    AcpiSdtTable *temp;
    int i;

    g_free(data->rsdt_tables_addr);

    for (i = 0; i < data->tables->len; ++i) {
        temp = &g_array_index(data->tables, AcpiSdtTable, i);
        g_free(temp->aml);
        if (temp->aml_file &&
            !temp->tmp_files_retain &&
            g_strstr_len(temp->aml_file, -1, "aml-")) {
            unlink(temp->aml_file);
        }
        g_free(temp->aml_file);
        g_free(temp->asl);
        if (temp->asl_file &&
            !temp->tmp_files_retain) {
            unlink(temp->asl_file);
        }
        g_free(temp->asl_file);
    }

    g_array_free(data->tables, true);
}

static void test_acpi_rsdp_address(test_data *data)
{
    uint32_t off = acpi_find_rsdp_address();
    g_assert_cmphex(off, <, 0x100000);
    data->rsdp_addr = off;
}

static void test_acpi_rsdp_table(test_data *data)
{
    AcpiRsdpDescriptor *rsdp_table = &data->rsdp_table;
    uint32_t addr = data->rsdp_addr;

    acpi_parse_rsdp_table(addr, rsdp_table);

    /* rsdp checksum is not for the whole table, but for the first 20 bytes */
    g_assert(!acpi_calc_checksum((uint8_t *)rsdp_table, 20));
}

static void test_acpi_rsdt_table(test_data *data)
{
    AcpiRsdtDescriptorRev1 *rsdt_table = &data->rsdt_table;
    uint32_t addr = le32_to_cpu(data->rsdp_table.rsdt_physical_address);
    uint32_t *tables;
    int tables_nr;
    uint8_t checksum;
    uint32_t rsdt_table_length;

    /* read the header */
    ACPI_READ_TABLE_HEADER(rsdt_table, addr);
    ACPI_ASSERT_CMP(rsdt_table->signature, "RSDT");

    rsdt_table_length = le32_to_cpu(rsdt_table->length);

    /* compute the table entries in rsdt */
    tables_nr = (rsdt_table_length - sizeof(AcpiRsdtDescriptorRev1)) /
                sizeof(uint32_t);
    g_assert(tables_nr > 0);

    /* get the addresses of the tables pointed by rsdt */
    tables = g_new0(uint32_t, tables_nr);
    ACPI_READ_ARRAY_PTR(tables, tables_nr, addr);

    checksum = acpi_calc_checksum((uint8_t *)rsdt_table, rsdt_table_length) +
               acpi_calc_checksum((uint8_t *)tables,
                                  tables_nr * sizeof(uint32_t));
    g_assert(!checksum);

   /* SSDT tables after FADT */
    data->rsdt_tables_addr = tables;
    data->rsdt_tables_nr = tables_nr;
}

static void fadt_fetch_facs_and_dsdt_ptrs(test_data *data)
{
    uint32_t addr;
    AcpiTableHeader hdr;

    /* FADT table comes first */
    addr = le32_to_cpu(data->rsdt_tables_addr[0]);
    ACPI_READ_TABLE_HEADER(&hdr, addr);
    ACPI_ASSERT_CMP(hdr.signature, "FACP");

    ACPI_READ_FIELD(data->facs_addr, addr);
    ACPI_READ_FIELD(data->dsdt_addr, addr);
}

static void sanitize_fadt_ptrs(test_data *data)
{
    /* fixup pointers in FADT */
    int i;

    for (i = 0; i < data->tables->len; i++) {
        AcpiSdtTable *sdt = &g_array_index(data->tables, AcpiSdtTable, i);

        if (memcmp(&sdt->header.signature, "FACP", 4)) {
            continue;
        }

        /* check original FADT checksum before sanitizing table */
        g_assert(!(uint8_t)(
            acpi_calc_checksum((uint8_t *)sdt, sizeof(AcpiTableHeader)) +
            acpi_calc_checksum((uint8_t *)sdt->aml, sdt->aml_len)
        ));

        /* sdt->aml field offset := spec offset - header size */
        memset(sdt->aml + 0, 0, 4); /* sanitize FIRMWARE_CTRL(36) ptr */
        memset(sdt->aml + 4, 0, 4); /* sanitize DSDT(40) ptr */
        if (sdt->header.revision >= 3) {
            memset(sdt->aml + 96, 0, 8); /* sanitize X_FIRMWARE_CTRL(132) ptr */
            memset(sdt->aml + 104, 0, 8); /* sanitize X_DSDT(140) ptr */
        }

        /* update checksum */
        sdt->header.checksum = 0;
        sdt->header.checksum -=
            acpi_calc_checksum((uint8_t *)sdt, sizeof(AcpiTableHeader)) +
            acpi_calc_checksum((uint8_t *)sdt->aml, sdt->aml_len);
        break;
    }
}

static void test_acpi_facs_table(test_data *data)
{
    AcpiFacsDescriptorRev1 *facs_table = &data->facs_table;
    uint32_t addr = le32_to_cpu(data->facs_addr);

    ACPI_READ_FIELD(facs_table->signature, addr);
    ACPI_READ_FIELD(facs_table->length, addr);
    ACPI_READ_FIELD(facs_table->hardware_signature, addr);
    ACPI_READ_FIELD(facs_table->firmware_waking_vector, addr);
    ACPI_READ_FIELD(facs_table->global_lock, addr);
    ACPI_READ_FIELD(facs_table->flags, addr);
    ACPI_READ_ARRAY(facs_table->resverved3, addr);

    ACPI_ASSERT_CMP(facs_table->signature, "FACS");
}

/** fetch_table
 *   load ACPI table at @addr into table descriptor @sdt_table
 *   and check that header checksum matches actual one.
 */
static void fetch_table(AcpiSdtTable *sdt_table, uint32_t addr)
{
    uint8_t checksum;

    memset(sdt_table, 0, sizeof(*sdt_table));
    ACPI_READ_TABLE_HEADER(&sdt_table->header, addr);

    sdt_table->aml_len = le32_to_cpu(sdt_table->header.length)
                         - sizeof(AcpiTableHeader);
    sdt_table->aml = g_malloc0(sdt_table->aml_len);
    ACPI_READ_ARRAY_PTR(sdt_table->aml, sdt_table->aml_len, addr);

    checksum = acpi_calc_checksum((uint8_t *)sdt_table,
                                  sizeof(AcpiTableHeader)) +
               acpi_calc_checksum((uint8_t *)sdt_table->aml,
                                  sdt_table->aml_len);
    g_assert(!checksum);
}

static void test_acpi_dsdt_table(test_data *data)
{
    AcpiSdtTable dsdt_table;
    uint32_t addr = le32_to_cpu(data->dsdt_addr);

    fetch_table(&dsdt_table, addr);
    ACPI_ASSERT_CMP(dsdt_table.header.signature, "DSDT");

    /* Since DSDT isn't in RSDT, add DSDT to ASL test tables list manually */
    g_array_append_val(data->tables, dsdt_table);
}

/* Load all tables and add to test list directly RSDT referenced tables */
static void fetch_rsdt_referenced_tables(test_data *data)
{
    int tables_nr = data->rsdt_tables_nr;
    int i;

    for (i = 0; i < tables_nr; i++) {
        AcpiSdtTable ssdt_table;
        uint32_t addr;

        addr = le32_to_cpu(data->rsdt_tables_addr[i]);
        fetch_table(&ssdt_table, addr);

        /* Add table to ASL test tables list */
        g_array_append_val(data->tables, ssdt_table);
    }
}

static void dump_aml_files(test_data *data, bool rebuild)
{
    AcpiSdtTable *sdt;
    GError *error = NULL;
    gchar *aml_file = NULL;
    gint fd;
    ssize_t ret;
    int i;

    for (i = 0; i < data->tables->len; ++i) {
        const char *ext = data->variant ? data->variant : "";
        sdt = &g_array_index(data->tables, AcpiSdtTable, i);
        g_assert(sdt->aml);

        if (rebuild) {
            aml_file = g_strdup_printf("%s/%s/%.4s%s", data_dir, data->machine,
                                       (gchar *)&sdt->header.signature, ext);
            fd = g_open(aml_file, O_WRONLY|O_TRUNC|O_CREAT,
                        S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
        } else {
            fd = g_file_open_tmp("aml-XXXXXX", &sdt->aml_file, &error);
            g_assert_no_error(error);
        }
        g_assert(fd >= 0);

        ret = qemu_write_full(fd, sdt, sizeof(AcpiTableHeader));
        g_assert(ret == sizeof(AcpiTableHeader));
        ret = qemu_write_full(fd, sdt->aml, sdt->aml_len);
        g_assert(ret == sdt->aml_len);

        close(fd);

        g_free(aml_file);
    }
}

static bool compare_signature(AcpiSdtTable *sdt, const char *signature)
{
   return !memcmp(&sdt->header.signature, signature, 4);
}

static bool load_asl(GArray *sdts, AcpiSdtTable *sdt)
{
    AcpiSdtTable *temp;
    GError *error = NULL;
    GString *command_line = g_string_new(iasl);
    gint fd;
    gchar *out, *out_err;
    gboolean ret;
    int i;

    fd = g_file_open_tmp("asl-XXXXXX.dsl", &sdt->asl_file, &error);
    g_assert_no_error(error);
    close(fd);

    /* build command line */
    g_string_append_printf(command_line, " -p %s ", sdt->asl_file);
    if (compare_signature(sdt, "DSDT") ||
        compare_signature(sdt, "SSDT")) {
        for (i = 0; i < sdts->len; ++i) {
            temp = &g_array_index(sdts, AcpiSdtTable, i);
            if (compare_signature(temp, "DSDT") ||
                compare_signature(temp, "SSDT")) {
                g_string_append_printf(command_line, "-e %s ", temp->aml_file);
            }
        }
    }
    g_string_append_printf(command_line, "-d %s", sdt->aml_file);

    /* pass 'out' and 'out_err' in order to be redirected */
    ret = g_spawn_command_line_sync(command_line->str, &out, &out_err, NULL, &error);
    g_assert_no_error(error);
    if (ret) {
        ret = g_file_get_contents(sdt->asl_file, (gchar **)&sdt->asl,
                                  &sdt->asl_len, &error);
        g_assert(ret);
        g_assert_no_error(error);
        ret = (sdt->asl_len > 0);
    }

    g_free(out);
    g_free(out_err);
    g_string_free(command_line, true);

    return !ret;
}

#define COMMENT_END "*/"
#define DEF_BLOCK "DefinitionBlock ("
#define BLOCK_NAME_END ","

static GString *normalize_asl(gchar *asl_code)
{
    GString *asl = g_string_new(asl_code);
    gchar *comment, *block_name;

    /* strip comments (different generation days) */
    comment = g_strstr_len(asl->str, asl->len, COMMENT_END);
    if (comment) {
        comment += strlen(COMMENT_END);
        while (*comment == '\n') {
            comment++;
        }
        asl = g_string_erase(asl, 0, comment - asl->str);
    }

    /* strip def block name (it has file path in it) */
    if (g_str_has_prefix(asl->str, DEF_BLOCK)) {
        block_name = g_strstr_len(asl->str, asl->len, BLOCK_NAME_END);
        g_assert(block_name);
        asl = g_string_erase(asl, 0,
                             block_name + sizeof(BLOCK_NAME_END) - asl->str);
    }

    return asl;
}

static GArray *load_expected_aml(test_data *data)
{
    int i;
    AcpiSdtTable *sdt;
    GError *error = NULL;
    gboolean ret;

    GArray *exp_tables = g_array_new(false, true, sizeof(AcpiSdtTable));
    for (i = 0; i < data->tables->len; ++i) {
        AcpiSdtTable exp_sdt;
        gchar *aml_file = NULL;
        const char *ext = data->variant ? data->variant : "";

        sdt = &g_array_index(data->tables, AcpiSdtTable, i);

        memset(&exp_sdt, 0, sizeof(exp_sdt));
        exp_sdt.header.signature = sdt->header.signature;

try_again:
        aml_file = g_strdup_printf("%s/%s/%.4s%s", data_dir, data->machine,
                                   (gchar *)&sdt->header.signature, ext);
        if (getenv("V")) {
            fprintf(stderr, "\nLooking for expected file '%s'\n", aml_file);
        }
        if (g_file_test(aml_file, G_FILE_TEST_EXISTS)) {
            exp_sdt.aml_file = aml_file;
        } else if (*ext != '\0') {
            /* try fallback to generic (extention less) expected file */
            ext = "";
            g_free(aml_file);
            goto try_again;
        }
        g_assert(exp_sdt.aml_file);
        if (getenv("V")) {
            fprintf(stderr, "\nUsing expected file '%s'\n", aml_file);
        }
        ret = g_file_get_contents(aml_file, &exp_sdt.aml,
                                  &exp_sdt.aml_len, &error);
        g_assert(ret);
        g_assert_no_error(error);
        g_assert(exp_sdt.aml);
        g_assert(exp_sdt.aml_len);

        g_array_append_val(exp_tables, exp_sdt);
    }

    return exp_tables;
}

/* test the list of tables in @data->tables against reference tables */
static void test_acpi_asl(test_data *data)
{
    int i;
    AcpiSdtTable *sdt, *exp_sdt;
    test_data exp_data;
    gboolean exp_err, err;

    memset(&exp_data, 0, sizeof(exp_data));
    exp_data.tables = load_expected_aml(data);
    dump_aml_files(data, false);
    for (i = 0; i < data->tables->len; ++i) {
        GString *asl, *exp_asl;

        sdt = &g_array_index(data->tables, AcpiSdtTable, i);
        exp_sdt = &g_array_index(exp_data.tables, AcpiSdtTable, i);

        err = load_asl(data->tables, sdt);
        asl = normalize_asl(sdt->asl);

        exp_err = load_asl(exp_data.tables, exp_sdt);
        exp_asl = normalize_asl(exp_sdt->asl);

        /* TODO: check for warnings */
        g_assert(!err || exp_err);

        if (g_strcmp0(asl->str, exp_asl->str)) {
            if (exp_err) {
                fprintf(stderr,
                        "Warning! iasl couldn't parse the expected aml\n");
            } else {
                uint32_t signature = cpu_to_le32(exp_sdt->header.signature);
                sdt->tmp_files_retain = true;
                exp_sdt->tmp_files_retain = true;
                fprintf(stderr,
                        "acpi-test: Warning! %.4s mismatch. "
                        "Actual [asl:%s, aml:%s], Expected [asl:%s, aml:%s].\n",
                        (gchar *)&signature,
                        sdt->asl_file, sdt->aml_file,
                        exp_sdt->asl_file, exp_sdt->aml_file);
                if (getenv("V")) {
                    const char *diff_cmd = getenv("DIFF");
                    if (diff_cmd) {
                        int ret G_GNUC_UNUSED;
                        char *diff = g_strdup_printf("%s %s %s", diff_cmd,
                            exp_sdt->asl_file, sdt->asl_file);
                        ret = system(diff) ;
                        g_free(diff);
                    } else {
                        fprintf(stderr, "acpi-test: Warning. not showing "
                            "difference since no diff utility is specified. "
                            "Set 'DIFF' environment variable to a preferred "
                            "diff utility and run 'make V=1 check' again to "
                            "see ASL difference.");
                    }
                }
          }
        }
        g_string_free(asl, true);
        g_string_free(exp_asl, true);
    }

    free_test_data(&exp_data);
}

static bool smbios_ep_table_ok(test_data *data)
{
    struct smbios_21_entry_point *ep_table = &data->smbios_ep_table;
    uint32_t addr = data->smbios_ep_addr;

    ACPI_READ_ARRAY(ep_table->anchor_string, addr);
    if (memcmp(ep_table->anchor_string, "_SM_", 4)) {
        return false;
    }
    ACPI_READ_FIELD(ep_table->checksum, addr);
    ACPI_READ_FIELD(ep_table->length, addr);
    ACPI_READ_FIELD(ep_table->smbios_major_version, addr);
    ACPI_READ_FIELD(ep_table->smbios_minor_version, addr);
    ACPI_READ_FIELD(ep_table->max_structure_size, addr);
    ACPI_READ_FIELD(ep_table->entry_point_revision, addr);
    ACPI_READ_ARRAY(ep_table->formatted_area, addr);
    ACPI_READ_ARRAY(ep_table->intermediate_anchor_string, addr);
    if (memcmp(ep_table->intermediate_anchor_string, "_DMI_", 5)) {
        return false;
    }
    ACPI_READ_FIELD(ep_table->intermediate_checksum, addr);
    ACPI_READ_FIELD(ep_table->structure_table_length, addr);
    if (ep_table->structure_table_length == 0) {
        return false;
    }
    ACPI_READ_FIELD(ep_table->structure_table_address, addr);
    ACPI_READ_FIELD(ep_table->number_of_structures, addr);
    if (ep_table->number_of_structures == 0) {
        return false;
    }
    ACPI_READ_FIELD(ep_table->smbios_bcd_revision, addr);
    if (acpi_calc_checksum((uint8_t *)ep_table, sizeof *ep_table) ||
        acpi_calc_checksum((uint8_t *)ep_table + 0x10,
                           sizeof *ep_table - 0x10)) {
        return false;
    }
    return true;
}

static void test_smbios_entry_point(test_data *data)
{
    uint32_t off;

    /* find smbios entry point structure */
    for (off = 0xf0000; off < 0x100000; off += 0x10) {
        uint8_t sig[] = "_SM_";
        int i;

        for (i = 0; i < sizeof sig - 1; ++i) {
            sig[i] = readb(off + i);
        }

        if (!memcmp(sig, "_SM_", sizeof sig)) {
            /* signature match, but is this a valid entry point? */
            data->smbios_ep_addr = off;
            if (smbios_ep_table_ok(data)) {
                break;
            }
        }
    }

    g_assert_cmphex(off, <, 0x100000);
}

static inline bool smbios_single_instance(uint8_t type)
{
    switch (type) {
    case 0:
    case 1:
    case 2:
    case 3:
    case 16:
    case 32:
    case 127:
        return true;
    default:
        return false;
    }
}

static void test_smbios_structs(test_data *data)
{
    DECLARE_BITMAP(struct_bitmap, SMBIOS_MAX_TYPE+1) = { 0 };
    struct smbios_21_entry_point *ep_table = &data->smbios_ep_table;
    uint32_t addr = le32_to_cpu(ep_table->structure_table_address);
    int i, len, max_len = 0;
    uint8_t type, prv, crt;

    /* walk the smbios tables */
    for (i = 0; i < le16_to_cpu(ep_table->number_of_structures); i++) {

        /* grab type and formatted area length from struct header */
        type = readb(addr);
        g_assert_cmpuint(type, <=, SMBIOS_MAX_TYPE);
        len = readb(addr + 1);

        /* single-instance structs must not have been encountered before */
        if (smbios_single_instance(type)) {
            g_assert(!test_bit(type, struct_bitmap));
        }
        set_bit(type, struct_bitmap);

        /* seek to end of unformatted string area of this struct ("\0\0") */
        prv = crt = 1;
        while (prv || crt) {
            prv = crt;
            crt = readb(addr + len);
            len++;
        }

        /* keep track of max. struct size */
        if (max_len < len) {
            max_len = len;
            g_assert_cmpuint(max_len, <=, ep_table->max_structure_size);
        }

        /* start of next structure */
        addr += len;
    }

    /* total table length and max struct size must match entry point values */
    g_assert_cmpuint(le16_to_cpu(ep_table->structure_table_length), ==,
                     addr - le32_to_cpu(ep_table->structure_table_address));
    g_assert_cmpuint(le16_to_cpu(ep_table->max_structure_size), ==, max_len);

    /* required struct types must all be present */
    for (i = 0; i < data->required_struct_types_len; i++) {
        g_assert(test_bit(data->required_struct_types[i], struct_bitmap));
    }
}

static void test_acpi_one(const char *params, test_data *data)
{
    char *args;

    /* Disable kernel irqchip to be able to override apic irq0. */
    args = g_strdup_printf("-machine %s,accel=%s,kernel-irqchip=off "
                           "-net none -display none %s "
                           "-drive id=hd0,if=none,file=%s,format=raw "
                           "-device ide-hd,drive=hd0 ",
                           data->machine, "kvm:tcg",
                           params ? params : "", disk);

    qtest_start(args);

    boot_sector_test(global_qtest);

    data->tables = g_array_new(false, true, sizeof(AcpiSdtTable));
    test_acpi_rsdp_address(data);
    test_acpi_rsdp_table(data);
    test_acpi_rsdt_table(data);
    fadt_fetch_facs_and_dsdt_ptrs(data);
    test_acpi_facs_table(data);
    test_acpi_dsdt_table(data);
    fetch_rsdt_referenced_tables(data);

    sanitize_fadt_ptrs(data);

    if (iasl) {
        if (getenv(ACPI_REBUILD_EXPECTED_AML)) {
            dump_aml_files(data, true);
        } else {
            test_acpi_asl(data);
        }
    }

    test_smbios_entry_point(data);
    test_smbios_structs(data);

    qtest_quit(global_qtest);
    g_free(args);
}

static uint8_t base_required_struct_types[] = {
    0, 1, 3, 4, 16, 17, 19, 32, 127
};

static void test_acpi_piix4_tcg(void)
{
    test_data data;

    /* Supplying -machine accel argument overrides the default (qtest).
     * This is to make guest actually run.
     */
    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_PC;
    data.required_struct_types = base_required_struct_types;
    data.required_struct_types_len = ARRAY_SIZE(base_required_struct_types);
    test_acpi_one(NULL, &data);
    free_test_data(&data);
}

static void test_acpi_piix4_tcg_bridge(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_PC;
    data.variant = ".bridge";
    data.required_struct_types = base_required_struct_types;
    data.required_struct_types_len = ARRAY_SIZE(base_required_struct_types);
    test_acpi_one("-device pci-bridge,chassis_nr=1", &data);
    free_test_data(&data);
}

static void test_acpi_q35_tcg(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_Q35;
    data.required_struct_types = base_required_struct_types;
    data.required_struct_types_len = ARRAY_SIZE(base_required_struct_types);
    test_acpi_one(NULL, &data);
    free_test_data(&data);
}

static void test_acpi_q35_tcg_bridge(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_Q35;
    data.variant = ".bridge";
    data.required_struct_types = base_required_struct_types;
    data.required_struct_types_len = ARRAY_SIZE(base_required_struct_types);
    test_acpi_one("-device pci-bridge,chassis_nr=1",
                  &data);
    free_test_data(&data);
}

static void test_acpi_piix4_tcg_cphp(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_PC;
    data.variant = ".cphp";
    test_acpi_one("-smp 2,cores=3,sockets=2,maxcpus=6"
                  " -numa node -numa node"
                  " -numa dist,src=0,dst=1,val=21",
                  &data);
    free_test_data(&data);
}

static void test_acpi_q35_tcg_cphp(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_Q35;
    data.variant = ".cphp";
    test_acpi_one(" -smp 2,cores=3,sockets=2,maxcpus=6"
                  " -numa node -numa node"
                  " -numa dist,src=0,dst=1,val=21",
                  &data);
    free_test_data(&data);
}

static uint8_t ipmi_required_struct_types[] = {
    0, 1, 3, 4, 16, 17, 19, 32, 38, 127
};

static void test_acpi_q35_tcg_ipmi(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_Q35;
    data.variant = ".ipmibt";
    data.required_struct_types = ipmi_required_struct_types;
    data.required_struct_types_len = ARRAY_SIZE(ipmi_required_struct_types);
    test_acpi_one("-device ipmi-bmc-sim,id=bmc0"
                  " -device isa-ipmi-bt,bmc=bmc0",
                  &data);
    free_test_data(&data);
}

static void test_acpi_piix4_tcg_ipmi(void)
{
    test_data data;

    /* Supplying -machine accel argument overrides the default (qtest).
     * This is to make guest actually run.
     */
    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_PC;
    data.variant = ".ipmikcs";
    data.required_struct_types = ipmi_required_struct_types;
    data.required_struct_types_len = ARRAY_SIZE(ipmi_required_struct_types);
    test_acpi_one("-device ipmi-bmc-sim,id=bmc0"
                  " -device isa-ipmi-kcs,irq=0,bmc=bmc0",
                  &data);
    free_test_data(&data);
}

static void test_acpi_q35_tcg_memhp(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_Q35;
    data.variant = ".memhp";
    test_acpi_one(" -m 128,slots=3,maxmem=1G"
                  " -numa node -numa node"
                  " -numa dist,src=0,dst=1,val=21",
                  &data);
    free_test_data(&data);
}

static void test_acpi_piix4_tcg_memhp(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_PC;
    data.variant = ".memhp";
    test_acpi_one(" -m 128,slots=3,maxmem=1G"
                  " -numa node -numa node"
                  " -numa dist,src=0,dst=1,val=21",
                  &data);
    free_test_data(&data);
}

static void test_acpi_q35_tcg_numamem(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_Q35;
    data.variant = ".numamem";
    test_acpi_one(" -numa node -numa node,mem=128", &data);
    free_test_data(&data);
}

static void test_acpi_piix4_tcg_numamem(void)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = MACHINE_PC;
    data.variant = ".numamem";
    test_acpi_one(" -numa node -numa node,mem=128", &data);
    free_test_data(&data);
}

static void test_acpi_tcg_dimm_pxm(const char *machine)
{
    test_data data;

    memset(&data, 0, sizeof(data));
    data.machine = machine;
    data.variant = ".dimmpxm";
    test_acpi_one(" -machine nvdimm=on"
                  " -smp 4,sockets=4"
                  " -m 128M,slots=3,maxmem=1G"
                  " -numa node,mem=32M,nodeid=0"
                  " -numa node,mem=32M,nodeid=1"
                  " -numa node,mem=32M,nodeid=2"
                  " -numa node,mem=32M,nodeid=3"
                  " -numa cpu,node-id=0,socket-id=0"
                  " -numa cpu,node-id=1,socket-id=1"
                  " -numa cpu,node-id=2,socket-id=2"
                  " -numa cpu,node-id=3,socket-id=3"
                  " -object memory-backend-ram,id=ram0,size=128M"
                  " -object memory-backend-ram,id=nvm0,size=128M"
                  " -device pc-dimm,id=dimm0,memdev=ram0,node=1"
                  " -device nvdimm,id=dimm1,memdev=nvm0,node=2",
                  &data);
    free_test_data(&data);
}

static void test_acpi_q35_tcg_dimm_pxm(void)
{
    test_acpi_tcg_dimm_pxm(MACHINE_Q35);
}

static void test_acpi_piix4_tcg_dimm_pxm(void)
{
    test_acpi_tcg_dimm_pxm(MACHINE_PC);
}

int main(int argc, char *argv[])
{
    const char *arch = qtest_get_arch();
    int ret;

    ret = boot_sector_init(disk);
    if(ret)
        return ret;

    g_test_init(&argc, &argv, NULL);

    if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
        qtest_add_func("acpi/piix4", test_acpi_piix4_tcg);
        qtest_add_func("acpi/piix4/bridge", test_acpi_piix4_tcg_bridge);
        qtest_add_func("acpi/q35", test_acpi_q35_tcg);
        qtest_add_func("acpi/q35/bridge", test_acpi_q35_tcg_bridge);
        qtest_add_func("acpi/piix4/ipmi", test_acpi_piix4_tcg_ipmi);
        qtest_add_func("acpi/q35/ipmi", test_acpi_q35_tcg_ipmi);
        qtest_add_func("acpi/piix4/cpuhp", test_acpi_piix4_tcg_cphp);
        qtest_add_func("acpi/q35/cpuhp", test_acpi_q35_tcg_cphp);
        qtest_add_func("acpi/piix4/memhp", test_acpi_piix4_tcg_memhp);
        qtest_add_func("acpi/q35/memhp", test_acpi_q35_tcg_memhp);
        qtest_add_func("acpi/piix4/numamem", test_acpi_piix4_tcg_numamem);
        qtest_add_func("acpi/q35/numamem", test_acpi_q35_tcg_numamem);
        qtest_add_func("acpi/piix4/dimmpxm", test_acpi_piix4_tcg_dimm_pxm);
        qtest_add_func("acpi/q35/dimmpxm", test_acpi_q35_tcg_dimm_pxm);
    }
    ret = g_test_run();
    boot_sector_cleanup(disk);
    return ret;
}