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blockdev: Add missing bdrv_unref() in drive-backup
[qemu.git] / tests / bios-tables-test.c
blob6d37332a60c5314540bdbcc3263e2a9c6592ea3f
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/acpi/acpi-defs.h"
21 #include "hw/smbios/smbios.h"
22 #include "qemu/bitmap.h"
23
24 #define MACHINE_PC "pc"
25 #define MACHINE_Q35 "q35"
26
27 #define ACPI_REBUILD_EXPECTED_AML "TEST_ACPI_REBUILD_AML"
28
29 /* DSDT and SSDTs format */
30 typedef struct {
31 AcpiTableHeader header;
32 gchar *aml; /* aml bytecode from guest */
33 gsize aml_len;
34 gchar *aml_file;
35 gchar *asl; /* asl code generated from aml */
36 gsize asl_len;
37 gchar *asl_file;
38 bool tmp_files_retain; /* do not delete the temp asl/aml */
39 } QEMU_PACKED AcpiSdtTable;
40
41 typedef struct {
42 const char *machine;
43 const char *variant;
44 uint32_t rsdp_addr;
45 AcpiRsdpDescriptor rsdp_table;
46 AcpiRsdtDescriptorRev1 rsdt_table;
47 AcpiFadtDescriptorRev1 fadt_table;
48 AcpiFacsDescriptorRev1 facs_table;
49 uint32_t *rsdt_tables_addr;
50 int rsdt_tables_nr;
51 GArray *tables;
52 uint32_t smbios_ep_addr;
53 struct smbios_21_entry_point smbios_ep_table;
54 } test_data;
55
56 #define LOW(x) ((x) & 0xff)
57 #define HIGH(x) ((x) >> 8)
58
59 #define SIGNATURE 0xdead
60 #define SIGNATURE_OFFSET 0x10
61 #define BOOT_SECTOR_ADDRESS 0x7c00
62
63 #define ACPI_READ_FIELD(field, addr) \
64 do { \
65 switch (sizeof(field)) { \
66 case 1: \
67 field = readb(addr); \
68 break; \
69 case 2: \
70 field = readw(addr); \
71 break; \
72 case 4: \
73 field = readl(addr); \
74 break; \
75 case 8: \
76 field = readq(addr); \
77 break; \
78 default: \
79 g_assert(false); \
80 } \
81 addr += sizeof(field); \
82 } while (0);
83
84 #define ACPI_READ_ARRAY_PTR(arr, length, addr) \
85 do { \
86 int idx; \
87 for (idx = 0; idx < length; ++idx) { \
88 ACPI_READ_FIELD(arr[idx], addr); \
89 } \
90 } while (0);
91
92 #define ACPI_READ_ARRAY(arr, addr) \
93 ACPI_READ_ARRAY_PTR(arr, sizeof(arr)/sizeof(arr[0]), addr)
94
95 #define ACPI_READ_TABLE_HEADER(table, addr) \
96 do { \
97 ACPI_READ_FIELD((table)->signature, addr); \
98 ACPI_READ_FIELD((table)->length, addr); \
99 ACPI_READ_FIELD((table)->revision, addr); \
100 ACPI_READ_FIELD((table)->checksum, addr); \
101 ACPI_READ_ARRAY((table)->oem_id, addr); \
102 ACPI_READ_ARRAY((table)->oem_table_id, addr); \
103 ACPI_READ_FIELD((table)->oem_revision, addr); \
104 ACPI_READ_ARRAY((table)->asl_compiler_id, addr); \
105 ACPI_READ_FIELD((table)->asl_compiler_revision, addr); \
106 } while (0);
107
108 #define ACPI_ASSERT_CMP(actual, expected) do { \
109 uint32_t ACPI_ASSERT_CMP_le = cpu_to_le32(actual); \
110 char ACPI_ASSERT_CMP_str[5] = {}; \
111 memcpy(ACPI_ASSERT_CMP_str, &ACPI_ASSERT_CMP_le, 4); \
112 g_assert_cmpstr(ACPI_ASSERT_CMP_str, ==, expected); \
113 } while (0)
114
115 #define ACPI_ASSERT_CMP64(actual, expected) do { \
116 uint64_t ACPI_ASSERT_CMP_le = cpu_to_le64(actual); \
117 char ACPI_ASSERT_CMP_str[9] = {}; \
118 memcpy(ACPI_ASSERT_CMP_str, &ACPI_ASSERT_CMP_le, 8); \
119 g_assert_cmpstr(ACPI_ASSERT_CMP_str, ==, expected); \
120 } while (0)
121
122 /* Boot sector code: write SIGNATURE into memory,
123 * then halt.
124 * Q35 machine requires a minimum 0x7e000 bytes disk.
125 * (bug or feature?)
126 */
127 static uint8_t boot_sector[0x7e000] = {
128 /* 7c00: mov $0xdead,%ax */
129 [0x00] = 0xb8,
130 [0x01] = LOW(SIGNATURE),
131 [0x02] = HIGH(SIGNATURE),
132 /* 7c03: mov %ax,0x7c10 */
133 [0x03] = 0xa3,
134 [0x04] = LOW(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
135 [0x05] = HIGH(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
136 /* 7c06: cli */
137 [0x06] = 0xfa,
138 /* 7c07: hlt */
139 [0x07] = 0xf4,
140 /* 7c08: jmp 0x7c07=0x7c0a-3 */
141 [0x08] = 0xeb,
142 [0x09] = LOW(-3),
143 /* We mov 0xdead here: set value to make debugging easier */
144 [SIGNATURE_OFFSET] = LOW(0xface),
145 [SIGNATURE_OFFSET + 1] = HIGH(0xface),
146 /* End of boot sector marker */
147 [0x1FE] = 0x55,
148 [0x1FF] = 0xAA,
149 };
150
151 static const char *disk = "tests/acpi-test-disk.raw";
152 static const char *data_dir = "tests/acpi-test-data";
153 #ifdef CONFIG_IASL
154 static const char *iasl = stringify(CONFIG_IASL);
155 #else
156 static const char *iasl;
157 #endif
158
159 static void free_test_data(test_data *data)
160 {
161 AcpiSdtTable *temp;
162 int i;
163
164 g_free(data->rsdt_tables_addr);
165
166 for (i = 0; i < data->tables->len; ++i) {
167 temp = &g_array_index(data->tables, AcpiSdtTable, i);
168 g_free(temp->aml);
169 if (temp->aml_file &&
170 !temp->tmp_files_retain &&
171 g_strstr_len(temp->aml_file, -1, "aml-")) {
172 unlink(temp->aml_file);
173 }
174 g_free(temp->aml_file);
175 g_free(temp->asl);
176 if (temp->asl_file &&
177 !temp->tmp_files_retain) {
178 unlink(temp->asl_file);
179 }
180 g_free(temp->asl_file);
181 }
182
183 g_array_free(data->tables, false);
184 }
185
186 static uint8_t acpi_checksum(const uint8_t *data, int len)
187 {
188 int i;
189 uint8_t sum = 0;
190
191 for (i = 0; i < len; i++) {
192 sum += data[i];
193 }
194
195 return sum;
196 }
197
198 static void test_acpi_rsdp_address(test_data *data)
199 {
200 uint32_t off;
201
202 /* OK, now find RSDP */
203 for (off = 0xf0000; off < 0x100000; off += 0x10) {
204 uint8_t sig[] = "RSD PTR ";
205 int i;
206
207 for (i = 0; i < sizeof sig - 1; ++i) {
208 sig[i] = readb(off + i);
209 }
210
211 if (!memcmp(sig, "RSD PTR ", sizeof sig)) {
212 break;
213 }
214 }
215
216 g_assert_cmphex(off, <, 0x100000);
217 data->rsdp_addr = off;
218 }
219
220 static void test_acpi_rsdp_table(test_data *data)
221 {
222 AcpiRsdpDescriptor *rsdp_table = &data->rsdp_table;
223 uint32_t addr = data->rsdp_addr;
224
225 ACPI_READ_FIELD(rsdp_table->signature, addr);
226 ACPI_ASSERT_CMP64(rsdp_table->signature, "RSD PTR ");
227
228 ACPI_READ_FIELD(rsdp_table->checksum, addr);
229 ACPI_READ_ARRAY(rsdp_table->oem_id, addr);
230 ACPI_READ_FIELD(rsdp_table->revision, addr);
231 ACPI_READ_FIELD(rsdp_table->rsdt_physical_address, addr);
232 ACPI_READ_FIELD(rsdp_table->length, addr);
233
234 /* rsdp checksum is not for the whole table, but for the first 20 bytes */
235 g_assert(!acpi_checksum((uint8_t *)rsdp_table, 20));
236 }
237
238 static void test_acpi_rsdt_table(test_data *data)
239 {
240 AcpiRsdtDescriptorRev1 *rsdt_table = &data->rsdt_table;
241 uint32_t addr = data->rsdp_table.rsdt_physical_address;
242 uint32_t *tables;
243 int tables_nr;
244 uint8_t checksum;
245
246 /* read the header */
247 ACPI_READ_TABLE_HEADER(rsdt_table, addr);
248 ACPI_ASSERT_CMP(rsdt_table->signature, "RSDT");
249
250 /* compute the table entries in rsdt */
251 tables_nr = (rsdt_table->length - sizeof(AcpiRsdtDescriptorRev1)) /
252 sizeof(uint32_t);
253 g_assert_cmpint(tables_nr, >, 0);
254
255 /* get the addresses of the tables pointed by rsdt */
256 tables = g_new0(uint32_t, tables_nr);
257 ACPI_READ_ARRAY_PTR(tables, tables_nr, addr);
258
259 checksum = acpi_checksum((uint8_t *)rsdt_table, rsdt_table->length) +
260 acpi_checksum((uint8_t *)tables, tables_nr * sizeof(uint32_t));
261 g_assert(!checksum);
262
263 /* SSDT tables after FADT */
264 data->rsdt_tables_addr = tables;
265 data->rsdt_tables_nr = tables_nr;
266 }
267
268 static void test_acpi_fadt_table(test_data *data)
269 {
270 AcpiFadtDescriptorRev1 *fadt_table = &data->fadt_table;
271 uint32_t addr;
272
273 /* FADT table comes first */
274 addr = data->rsdt_tables_addr[0];
275 ACPI_READ_TABLE_HEADER(fadt_table, addr);
276
277 ACPI_READ_FIELD(fadt_table->firmware_ctrl, addr);
278 ACPI_READ_FIELD(fadt_table->dsdt, addr);
279 ACPI_READ_FIELD(fadt_table->model, addr);
280 ACPI_READ_FIELD(fadt_table->reserved1, addr);
281 ACPI_READ_FIELD(fadt_table->sci_int, addr);
282 ACPI_READ_FIELD(fadt_table->smi_cmd, addr);
283 ACPI_READ_FIELD(fadt_table->acpi_enable, addr);
284 ACPI_READ_FIELD(fadt_table->acpi_disable, addr);
285 ACPI_READ_FIELD(fadt_table->S4bios_req, addr);
286 ACPI_READ_FIELD(fadt_table->reserved2, addr);
287 ACPI_READ_FIELD(fadt_table->pm1a_evt_blk, addr);
288 ACPI_READ_FIELD(fadt_table->pm1b_evt_blk, addr);
289 ACPI_READ_FIELD(fadt_table->pm1a_cnt_blk, addr);
290 ACPI_READ_FIELD(fadt_table->pm1b_cnt_blk, addr);
291 ACPI_READ_FIELD(fadt_table->pm2_cnt_blk, addr);
292 ACPI_READ_FIELD(fadt_table->pm_tmr_blk, addr);
293 ACPI_READ_FIELD(fadt_table->gpe0_blk, addr);
294 ACPI_READ_FIELD(fadt_table->gpe1_blk, addr);
295 ACPI_READ_FIELD(fadt_table->pm1_evt_len, addr);
296 ACPI_READ_FIELD(fadt_table->pm1_cnt_len, addr);
297 ACPI_READ_FIELD(fadt_table->pm2_cnt_len, addr);
298 ACPI_READ_FIELD(fadt_table->pm_tmr_len, addr);
299 ACPI_READ_FIELD(fadt_table->gpe0_blk_len, addr);
300 ACPI_READ_FIELD(fadt_table->gpe1_blk_len, addr);
301 ACPI_READ_FIELD(fadt_table->gpe1_base, addr);
302 ACPI_READ_FIELD(fadt_table->reserved3, addr);
303 ACPI_READ_FIELD(fadt_table->plvl2_lat, addr);
304 ACPI_READ_FIELD(fadt_table->plvl3_lat, addr);
305 ACPI_READ_FIELD(fadt_table->flush_size, addr);
306 ACPI_READ_FIELD(fadt_table->flush_stride, addr);
307 ACPI_READ_FIELD(fadt_table->duty_offset, addr);
308 ACPI_READ_FIELD(fadt_table->duty_width, addr);
309 ACPI_READ_FIELD(fadt_table->day_alrm, addr);
310 ACPI_READ_FIELD(fadt_table->mon_alrm, addr);
311 ACPI_READ_FIELD(fadt_table->century, addr);
312 ACPI_READ_FIELD(fadt_table->reserved4, addr);
313 ACPI_READ_FIELD(fadt_table->reserved4a, addr);
314 ACPI_READ_FIELD(fadt_table->reserved4b, addr);
315 ACPI_READ_FIELD(fadt_table->flags, addr);
316
317 ACPI_ASSERT_CMP(fadt_table->signature, "FACP");
318 g_assert(!acpi_checksum((uint8_t *)fadt_table, fadt_table->length));
319 }
320
321 static void test_acpi_facs_table(test_data *data)
322 {
323 AcpiFacsDescriptorRev1 *facs_table = &data->facs_table;
324 uint32_t addr = data->fadt_table.firmware_ctrl;
325
326 ACPI_READ_FIELD(facs_table->signature, addr);
327 ACPI_READ_FIELD(facs_table->length, addr);
328 ACPI_READ_FIELD(facs_table->hardware_signature, addr);
329 ACPI_READ_FIELD(facs_table->firmware_waking_vector, addr);
330 ACPI_READ_FIELD(facs_table->global_lock, addr);
331 ACPI_READ_FIELD(facs_table->flags, addr);
332 ACPI_READ_ARRAY(facs_table->resverved3, addr);
333
334 ACPI_ASSERT_CMP(facs_table->signature, "FACS");
335 }
336
337 static void test_dst_table(AcpiSdtTable *sdt_table, uint32_t addr)
338 {
339 uint8_t checksum;
340
341 ACPI_READ_TABLE_HEADER(&sdt_table->header, addr);
342
343 sdt_table->aml_len = sdt_table->header.length - sizeof(AcpiTableHeader);
344 sdt_table->aml = g_malloc0(sdt_table->aml_len);
345 ACPI_READ_ARRAY_PTR(sdt_table->aml, sdt_table->aml_len, addr);
346
347 checksum = acpi_checksum((uint8_t *)sdt_table, sizeof(AcpiTableHeader)) +
348 acpi_checksum((uint8_t *)sdt_table->aml, sdt_table->aml_len);
349 g_assert(!checksum);
350 }
351
352 static void test_acpi_dsdt_table(test_data *data)
353 {
354 AcpiSdtTable dsdt_table;
355 uint32_t addr = data->fadt_table.dsdt;
356
357 memset(&dsdt_table, 0, sizeof(dsdt_table));
358 data->tables = g_array_new(false, true, sizeof(AcpiSdtTable));
359
360 test_dst_table(&dsdt_table, addr);
361 ACPI_ASSERT_CMP(dsdt_table.header.signature, "DSDT");
362
363 /* Place DSDT first */
364 g_array_append_val(data->tables, dsdt_table);
365 }
366
367 static void test_acpi_tables(test_data *data)
368 {
369 int tables_nr = data->rsdt_tables_nr - 1; /* fadt is first */
370 int i;
371
372 for (i = 0; i < tables_nr; i++) {
373 AcpiSdtTable ssdt_table;
374
375 memset(&ssdt_table, 0 , sizeof(ssdt_table));
376 uint32_t addr = data->rsdt_tables_addr[i + 1]; /* fadt is first */
377 test_dst_table(&ssdt_table, addr);
378 g_array_append_val(data->tables, ssdt_table);
379 }
380 }
381
382 static void dump_aml_files(test_data *data, bool rebuild)
383 {
384 AcpiSdtTable *sdt;
385 GError *error = NULL;
386 gchar *aml_file = NULL;
387 gint fd;
388 ssize_t ret;
389 int i;
390
391 for (i = 0; i < data->tables->len; ++i) {
392 const char *ext = data->variant ? data->variant : "";
393 sdt = &g_array_index(data->tables, AcpiSdtTable, i);
394 g_assert(sdt->aml);
395
396 if (rebuild) {
397 uint32_t signature = cpu_to_le32(sdt->header.signature);
398 aml_file = g_strdup_printf("%s/%s/%.4s%s", data_dir, data->machine,
399 (gchar *)&signature, ext);
400 fd = g_open(aml_file, O_WRONLY|O_TRUNC|O_CREAT,
401 S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
402 } else {
403 fd = g_file_open_tmp("aml-XXXXXX", &sdt->aml_file, &error);
404 g_assert_no_error(error);
405 }
406 g_assert(fd >= 0);
407
408 ret = qemu_write_full(fd, sdt, sizeof(AcpiTableHeader));
409 g_assert(ret == sizeof(AcpiTableHeader));
410 ret = qemu_write_full(fd, sdt->aml, sdt->aml_len);
411 g_assert(ret == sdt->aml_len);
412
413 close(fd);
414
415 g_free(aml_file);
416 }
417 }
418
419 static bool compare_signature(AcpiSdtTable *sdt, const char *signature)
420 {
421 return !memcmp(&sdt->header.signature, signature, 4);
422 }
423
424 static bool load_asl(GArray *sdts, AcpiSdtTable *sdt)
425 {
426 AcpiSdtTable *temp;
427 GError *error = NULL;
428 GString *command_line = g_string_new(iasl);
429 gint fd;
430 gchar *out, *out_err;
431 gboolean ret;
432 int i;
433
434 fd = g_file_open_tmp("asl-XXXXXX.dsl", &sdt->asl_file, &error);
435 g_assert_no_error(error);
436 close(fd);
437
438 /* build command line */
439 g_string_append_printf(command_line, " -p %s ", sdt->asl_file);
440 if (compare_signature(sdt, "DSDT") ||
441 compare_signature(sdt, "SSDT")) {
442 for (i = 0; i < sdts->len; ++i) {
443 temp = &g_array_index(sdts, AcpiSdtTable, i);
444 if (compare_signature(temp, "DSDT") ||
445 compare_signature(temp, "SSDT")) {
446 g_string_append_printf(command_line, "-e %s ", temp->aml_file);
447 }
448 }
449 }
450 g_string_append_printf(command_line, "-d %s", sdt->aml_file);
451
452 /* pass 'out' and 'out_err' in order to be redirected */
453 ret = g_spawn_command_line_sync(command_line->str, &out, &out_err, NULL, &error);
454 g_assert_no_error(error);
455 if (ret) {
456 ret = g_file_get_contents(sdt->asl_file, (gchar **)&sdt->asl,
457 &sdt->asl_len, &error);
458 g_assert(ret);
459 g_assert_no_error(error);
460 ret = (sdt->asl_len > 0);
461 }
462
463 g_free(out);
464 g_free(out_err);
465 g_string_free(command_line, true);
466
467 return !ret;
468 }
469
470 #define COMMENT_END "*/"
471 #define DEF_BLOCK "DefinitionBlock ("
472 #define BLOCK_NAME_END ".aml"
473
474 static GString *normalize_asl(gchar *asl_code)
475 {
476 GString *asl = g_string_new(asl_code);
477 gchar *comment, *block_name;
478
479 /* strip comments (different generation days) */
480 comment = g_strstr_len(asl->str, asl->len, COMMENT_END);
481 if (comment) {
482 comment += strlen(COMMENT_END);
483 while (*comment == '\n') {
484 comment++;
485 }
486 asl = g_string_erase(asl, 0, comment - asl->str);
487 }
488
489 /* strip def block name (it has file path in it) */
490 if (g_str_has_prefix(asl->str, DEF_BLOCK)) {
491 block_name = g_strstr_len(asl->str, asl->len, BLOCK_NAME_END);
492 g_assert(block_name);
493 asl = g_string_erase(asl, 0,
494 block_name + sizeof(BLOCK_NAME_END) - asl->str);
495 }
496
497 return asl;
498 }
499
500 static GArray *load_expected_aml(test_data *data)
501 {
502 int i;
503 AcpiSdtTable *sdt;
504 gchar *aml_file = NULL;
505 GError *error = NULL;
506 gboolean ret;
507
508 GArray *exp_tables = g_array_new(false, true, sizeof(AcpiSdtTable));
509 for (i = 0; i < data->tables->len; ++i) {
510 AcpiSdtTable exp_sdt;
511 uint32_t signature;
512 const char *ext = data->variant ? data->variant : "";
513
514 sdt = &g_array_index(data->tables, AcpiSdtTable, i);
515
516 memset(&exp_sdt, 0, sizeof(exp_sdt));
517 exp_sdt.header.signature = sdt->header.signature;
518
519 signature = cpu_to_le32(sdt->header.signature);
520
521 try_again:
522 aml_file = g_strdup_printf("%s/%s/%.4s%s", data_dir, data->machine,
523 (gchar *)&signature, ext);
524 if (data->variant && !g_file_test(aml_file, G_FILE_TEST_EXISTS)) {
525 g_free(aml_file);
526 ext = "";
527 goto try_again;
528 }
529 exp_sdt.aml_file = aml_file;
530 g_assert(g_file_test(aml_file, G_FILE_TEST_EXISTS));
531 ret = g_file_get_contents(aml_file, &exp_sdt.aml,
532 &exp_sdt.aml_len, &error);
533 g_assert(ret);
534 g_assert_no_error(error);
535 g_assert(exp_sdt.aml);
536 g_assert(exp_sdt.aml_len);
537
538 g_array_append_val(exp_tables, exp_sdt);
539 }
540
541 return exp_tables;
542 }
543
544 static void test_acpi_asl(test_data *data)
545 {
546 int i;
547 AcpiSdtTable *sdt, *exp_sdt;
548 test_data exp_data;
549 gboolean exp_err, err;
550
551 memset(&exp_data, 0, sizeof(exp_data));
552 exp_data.tables = load_expected_aml(data);
553 dump_aml_files(data, false);
554 for (i = 0; i < data->tables->len; ++i) {
555 GString *asl, *exp_asl;
556
557 sdt = &g_array_index(data->tables, AcpiSdtTable, i);
558 exp_sdt = &g_array_index(exp_data.tables, AcpiSdtTable, i);
559
560 err = load_asl(data->tables, sdt);
561 asl = normalize_asl(sdt->asl);
562
563 exp_err = load_asl(exp_data.tables, exp_sdt);
564 exp_asl = normalize_asl(exp_sdt->asl);
565
566 /* TODO: check for warnings */
567 g_assert(!err || exp_err);
568
569 if (g_strcmp0(asl->str, exp_asl->str)) {
570 if (exp_err) {
571 fprintf(stderr,
572 "Warning! iasl couldn't parse the expected aml\n");
573 } else {
574 uint32_t signature = cpu_to_le32(exp_sdt->header.signature);
575 sdt->tmp_files_retain = true;
576 exp_sdt->tmp_files_retain = true;
577 fprintf(stderr,
578 "acpi-test: Warning! %.4s mismatch. "
579 "Actual [asl:%s, aml:%s], Expected [asl:%s, aml:%s].\n",
580 (gchar *)&signature,
581 sdt->asl_file, sdt->aml_file,
582 exp_sdt->asl_file, exp_sdt->aml_file);
583 }
584 }
585 g_string_free(asl, true);
586 g_string_free(exp_asl, true);
587 }
588
589 free_test_data(&exp_data);
590 }
591
592 static bool smbios_ep_table_ok(test_data *data)
593 {
594 struct smbios_21_entry_point *ep_table = &data->smbios_ep_table;
595 uint32_t addr = data->smbios_ep_addr;
596
597 ACPI_READ_ARRAY(ep_table->anchor_string, addr);
598 if (memcmp(ep_table->anchor_string, "_SM_", 4)) {
599 return false;
600 }
601 ACPI_READ_FIELD(ep_table->checksum, addr);
602 ACPI_READ_FIELD(ep_table->length, addr);
603 ACPI_READ_FIELD(ep_table->smbios_major_version, addr);
604 ACPI_READ_FIELD(ep_table->smbios_minor_version, addr);
605 ACPI_READ_FIELD(ep_table->max_structure_size, addr);
606 ACPI_READ_FIELD(ep_table->entry_point_revision, addr);
607 ACPI_READ_ARRAY(ep_table->formatted_area, addr);
608 ACPI_READ_ARRAY(ep_table->intermediate_anchor_string, addr);
609 if (memcmp(ep_table->intermediate_anchor_string, "_DMI_", 5)) {
610 return false;
611 }
612 ACPI_READ_FIELD(ep_table->intermediate_checksum, addr);
613 ACPI_READ_FIELD(ep_table->structure_table_length, addr);
614 if (ep_table->structure_table_length == 0) {
615 return false;
616 }
617 ACPI_READ_FIELD(ep_table->structure_table_address, addr);
618 ACPI_READ_FIELD(ep_table->number_of_structures, addr);
619 if (ep_table->number_of_structures == 0) {
620 return false;
621 }
622 ACPI_READ_FIELD(ep_table->smbios_bcd_revision, addr);
623 if (acpi_checksum((uint8_t *)ep_table, sizeof *ep_table) ||
624 acpi_checksum((uint8_t *)ep_table + 0x10, sizeof *ep_table - 0x10)) {
625 return false;
626 }
627 return true;
628 }
629
630 static void test_smbios_entry_point(test_data *data)
631 {
632 uint32_t off;
633
634 /* find smbios entry point structure */
635 for (off = 0xf0000; off < 0x100000; off += 0x10) {
636 uint8_t sig[] = "_SM_";
637 int i;
638
639 for (i = 0; i < sizeof sig - 1; ++i) {
640 sig[i] = readb(off + i);
641 }
642
643 if (!memcmp(sig, "_SM_", sizeof sig)) {
644 /* signature match, but is this a valid entry point? */
645 data->smbios_ep_addr = off;
646 if (smbios_ep_table_ok(data)) {
647 break;
648 }
649 }
650 }
651
652 g_assert_cmphex(off, <, 0x100000);
653 }
654
655 static inline bool smbios_single_instance(uint8_t type)
656 {
657 switch (type) {
658 case 0:
659 case 1:
660 case 2:
661 case 3:
662 case 16:
663 case 32:
664 case 127:
665 return true;
666 default:
667 return false;
668 }
669 }
670
671 static void test_smbios_structs(test_data *data)
672 {
673 DECLARE_BITMAP(struct_bitmap, SMBIOS_MAX_TYPE+1) = { 0 };
674 struct smbios_21_entry_point *ep_table = &data->smbios_ep_table;
675 uint32_t addr = ep_table->structure_table_address;
676 int i, len, max_len = 0;
677 uint8_t type, prv, crt;
678 uint8_t required_struct_types[] = {0, 1, 3, 4, 16, 17, 19, 32, 127};
679
680 /* walk the smbios tables */
681 for (i = 0; i < ep_table->number_of_structures; i++) {
682
683 /* grab type and formatted area length from struct header */
684 type = readb(addr);
685 g_assert_cmpuint(type, <=, SMBIOS_MAX_TYPE);
686 len = readb(addr + 1);
687
688 /* single-instance structs must not have been encountered before */
689 if (smbios_single_instance(type)) {
690 g_assert(!test_bit(type, struct_bitmap));
691 }
692 set_bit(type, struct_bitmap);
693
694 /* seek to end of unformatted string area of this struct ("\0\0") */
695 prv = crt = 1;
696 while (prv || crt) {
697 prv = crt;
698 crt = readb(addr + len);
699 len++;
700 }
701
702 /* keep track of max. struct size */
703 if (max_len < len) {
704 max_len = len;
705 g_assert_cmpuint(max_len, <=, ep_table->max_structure_size);
706 }
707
708 /* start of next structure */
709 addr += len;
710 }
711
712 /* total table length and max struct size must match entry point values */
713 g_assert_cmpuint(ep_table->structure_table_length, ==,
714 addr - ep_table->structure_table_address);
715 g_assert_cmpuint(ep_table->max_structure_size, ==, max_len);
716
717 /* required struct types must all be present */
718 for (i = 0; i < ARRAY_SIZE(required_struct_types); i++) {
719 g_assert(test_bit(required_struct_types[i], struct_bitmap));
720 }
721 }
722
723 static void test_acpi_one(const char *params, test_data *data)
724 {
725 char *args;
726 uint8_t signature_low;
727 uint8_t signature_high;
728 uint16_t signature;
729 int i;
730
731 args = g_strdup_printf("-net none -display none %s "
732 "-drive id=hd0,if=none,file=%s,format=raw "
733 "-device ide-hd,drive=hd0 ",
734 params ? params : "", disk);
735
736 qtest_start(args);
737
738 /* Wait at most 1 minute */
739 #define TEST_DELAY (1 * G_USEC_PER_SEC / 10)
740 #define TEST_CYCLES MAX((60 * G_USEC_PER_SEC / TEST_DELAY), 1)
741
742 /* Poll until code has run and modified memory. Once it has we know BIOS
743 * initialization is done. TODO: check that IP reached the halt
744 * instruction.
745 */
746 for (i = 0; i < TEST_CYCLES; ++i) {
747 signature_low = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET);
748 signature_high = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET + 1);
749 signature = (signature_high << 8) | signature_low;
750 if (signature == SIGNATURE) {
751 break;
752 }
753 g_usleep(TEST_DELAY);
754 }
755 g_assert_cmphex(signature, ==, SIGNATURE);
756
757 test_acpi_rsdp_address(data);
758 test_acpi_rsdp_table(data);
759 test_acpi_rsdt_table(data);
760 test_acpi_fadt_table(data);
761 test_acpi_facs_table(data);
762 test_acpi_dsdt_table(data);
763 test_acpi_tables(data);
764
765 if (iasl) {
766 if (getenv(ACPI_REBUILD_EXPECTED_AML)) {
767 dump_aml_files(data, true);
768 } else {
769 test_acpi_asl(data);
770 }
771 }
772
773 test_smbios_entry_point(data);
774 test_smbios_structs(data);
775
776 qtest_quit(global_qtest);
777 g_free(args);
778 }
779
780 static void test_acpi_piix4_tcg(void)
781 {
782 test_data data;
783
784 /* Supplying -machine accel argument overrides the default (qtest).
785 * This is to make guest actually run.
786 */
787 memset(&data, 0, sizeof(data));
788 data.machine = MACHINE_PC;
789 test_acpi_one("-machine accel=tcg", &data);
790 free_test_data(&data);
791 }
792
793 static void test_acpi_piix4_tcg_bridge(void)
794 {
795 test_data data;
796
797 memset(&data, 0, sizeof(data));
798 data.machine = MACHINE_PC;
799 data.variant = ".bridge";
800 test_acpi_one("-machine accel=tcg -device pci-bridge,chassis_nr=1", &data);
801 free_test_data(&data);
802 }
803
804 static void test_acpi_q35_tcg(void)
805 {
806 test_data data;
807
808 memset(&data, 0, sizeof(data));
809 data.machine = MACHINE_Q35;
810 test_acpi_one("-machine q35,accel=tcg", &data);
811 free_test_data(&data);
812 }
813
814 static void test_acpi_q35_tcg_bridge(void)
815 {
816 test_data data;
817
818 memset(&data, 0, sizeof(data));
819 data.machine = MACHINE_Q35;
820 data.variant = ".bridge";
821 test_acpi_one("-machine q35,accel=tcg -device pci-bridge,chassis_nr=1",
822 &data);
823 free_test_data(&data);
824 }
825
826 int main(int argc, char *argv[])
827 {
828 const char *arch = qtest_get_arch();
829 FILE *f = fopen(disk, "w");
830 int ret;
831
832 if (!f) {
833 fprintf(stderr, "Couldn't open \"%s\": %s", disk, strerror(errno));
834 return 1;
835 }
836 fwrite(boot_sector, 1, sizeof boot_sector, f);
837 fclose(f);
838
839 g_test_init(&argc, &argv, NULL);
840
841 if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
842 qtest_add_func("acpi/piix4/tcg", test_acpi_piix4_tcg);
843 qtest_add_func("acpi/piix4/tcg/bridge", test_acpi_piix4_tcg_bridge);
844 qtest_add_func("acpi/q35/tcg", test_acpi_q35_tcg);
845 qtest_add_func("acpi/q35/tcg/bridge", test_acpi_q35_tcg_bridge);
846 }
847 ret = g_test_run();
848 unlink(disk);
849 return ret;
850 }
QEmu