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tests/avocado: Disable the test_sbsaref_edk2_firmware by default
[qemu/kevin.git] / tests / unit / test-vmstate.c
blob0b7d5ecd6838da416318210b39f83fbf9657277d
1 /*
2 * Test code for VMState
3 *
4 * Copyright (c) 2013 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26
27 #include "../migration/migration.h"
28 #include "migration/vmstate.h"
29 #include "migration/qemu-file-types.h"
30 #include "../migration/qemu-file.h"
31 #include "../migration/savevm.h"
32 #include "qemu/module.h"
33 #include "io/channel-file.h"
34
35 static int temp_fd;
36
37
38 /* Duplicate temp_fd and seek to the beginning of the file */
39 static QEMUFile *open_test_file(bool write)
40 {
41 int fd;
42 QIOChannel *ioc;
43 QEMUFile *f;
44
45 fd = dup(temp_fd);
46 g_assert(fd >= 0);
47 lseek(fd, 0, SEEK_SET);
48 if (write) {
49 g_assert_cmpint(ftruncate(fd, 0), ==, 0);
50 }
51 ioc = QIO_CHANNEL(qio_channel_file_new_fd(fd));
52 if (write) {
53 f = qemu_file_new_output(ioc);
54 } else {
55 f = qemu_file_new_input(ioc);
56 }
57 object_unref(OBJECT(ioc));
58 return f;
59 }
60
61 #define SUCCESS(val) \
62 g_assert_cmpint((val), ==, 0)
63
64 #define FAILURE(val) \
65 g_assert_cmpint((val), !=, 0)
66
67 static void save_vmstate(const VMStateDescription *desc, void *obj)
68 {
69 QEMUFile *f = open_test_file(true);
70
71 /* Save file with vmstate */
72 int ret = vmstate_save_state(f, desc, obj, NULL);
73 g_assert(!ret);
74 qemu_put_byte(f, QEMU_VM_EOF);
75 g_assert(!qemu_file_get_error(f));
76 qemu_fclose(f);
77 }
78
79 static void save_buffer(const uint8_t *buf, size_t buf_size)
80 {
81 QEMUFile *fsave = open_test_file(true);
82 qemu_put_buffer(fsave, buf, buf_size);
83 qemu_fclose(fsave);
84 }
85
86 static void compare_vmstate(const uint8_t *wire, size_t size)
87 {
88 QEMUFile *f = open_test_file(false);
89 g_autofree uint8_t *result = g_malloc(size);
90
91 /* read back as binary */
92
93 g_assert_cmpint(qemu_get_buffer(f, result, size), ==, size);
94 g_assert(!qemu_file_get_error(f));
95
96 /* Compare that what is on the file is the same that what we
97 expected to be there */
98 SUCCESS(memcmp(result, wire, size));
99
100 /* Must reach EOF */
101 qemu_get_byte(f);
102 g_assert_cmpint(qemu_file_get_error(f), ==, -EIO);
103
104 qemu_fclose(f);
105 }
106
107 static int load_vmstate_one(const VMStateDescription *desc, void *obj,
108 int version, const uint8_t *wire, size_t size)
109 {
110 QEMUFile *f;
111 int ret;
112
113 f = open_test_file(true);
114 qemu_put_buffer(f, wire, size);
115 qemu_fclose(f);
116
117 f = open_test_file(false);
118 ret = vmstate_load_state(f, desc, obj, version);
119 if (ret) {
120 g_assert(qemu_file_get_error(f));
121 } else{
122 g_assert(!qemu_file_get_error(f));
123 }
124 qemu_fclose(f);
125 return ret;
126 }
127
128
129 static int load_vmstate(const VMStateDescription *desc,
130 void *obj, void *obj_clone,
131 void (*obj_copy)(void *, void*),
132 int version, const uint8_t *wire, size_t size)
133 {
134 /* We test with zero size */
135 obj_copy(obj_clone, obj);
136 FAILURE(load_vmstate_one(desc, obj, version, wire, 0));
137
138 /* Stream ends with QEMU_EOF, so we need at least 3 bytes to be
139 * able to test in the middle */
140
141 if (size > 3) {
142
143 /* We test with size - 2. We can't test size - 1 due to EOF tricks */
144 obj_copy(obj, obj_clone);
145 FAILURE(load_vmstate_one(desc, obj, version, wire, size - 2));
146
147 /* Test with size/2, first half of real state */
148 obj_copy(obj, obj_clone);
149 FAILURE(load_vmstate_one(desc, obj, version, wire, size/2));
150
151 /* Test with size/2, second half of real state */
152 obj_copy(obj, obj_clone);
153 FAILURE(load_vmstate_one(desc, obj, version, wire + (size/2), size/2));
154
155 }
156 obj_copy(obj, obj_clone);
157 return load_vmstate_one(desc, obj, version, wire, size);
158 }
159
160 /* Test struct that we are going to use for our tests */
161
162 typedef struct TestSimple {
163 bool b_1, b_2;
164 uint8_t u8_1;
165 uint16_t u16_1;
166 uint32_t u32_1;
167 uint64_t u64_1;
168 int8_t i8_1, i8_2;
169 int16_t i16_1, i16_2;
170 int32_t i32_1, i32_2;
171 int64_t i64_1, i64_2;
172 } TestSimple;
173
174 /* Object instantiation, we are going to use it in more than one test */
175
176 TestSimple obj_simple = {
177 .b_1 = true,
178 .b_2 = false,
179 .u8_1 = 130,
180 .u16_1 = 512,
181 .u32_1 = 70000,
182 .u64_1 = 12121212,
183 .i8_1 = 65,
184 .i8_2 = -65,
185 .i16_1 = 512,
186 .i16_2 = -512,
187 .i32_1 = 70000,
188 .i32_2 = -70000,
189 .i64_1 = 12121212,
190 .i64_2 = -12121212,
191 };
192
193 /* Description of the values. If you add a primitive type
194 you are expected to add a test here */
195
196 static const VMStateDescription vmstate_simple_primitive = {
197 .name = "simple/primitive",
198 .version_id = 1,
199 .minimum_version_id = 1,
200 .fields = (VMStateField[]) {
201 VMSTATE_BOOL(b_1, TestSimple),
202 VMSTATE_BOOL(b_2, TestSimple),
203 VMSTATE_UINT8(u8_1, TestSimple),
204 VMSTATE_UINT16(u16_1, TestSimple),
205 VMSTATE_UINT32(u32_1, TestSimple),
206 VMSTATE_UINT64(u64_1, TestSimple),
207 VMSTATE_INT8(i8_1, TestSimple),
208 VMSTATE_INT8(i8_2, TestSimple),
209 VMSTATE_INT16(i16_1, TestSimple),
210 VMSTATE_INT16(i16_2, TestSimple),
211 VMSTATE_INT32(i32_1, TestSimple),
212 VMSTATE_INT32(i32_2, TestSimple),
213 VMSTATE_INT64(i64_1, TestSimple),
214 VMSTATE_INT64(i64_2, TestSimple),
215 VMSTATE_END_OF_LIST()
216 }
217 };
218
219 /* It describes what goes through the wire. Our tests are basically:
220
221 * save test
222 - save a struct a vmstate to a file
223 - read that file back (binary read, no vmstate)
224 - compare it with what we expect to be on the wire
225 * load test
226 - save to the file what we expect to be on the wire
227 - read struct back with vmstate in a different
228 - compare back with the original struct
229 */
230
231 uint8_t wire_simple_primitive[] = {
232 /* b_1 */ 0x01,
233 /* b_2 */ 0x00,
234 /* u8_1 */ 0x82,
235 /* u16_1 */ 0x02, 0x00,
236 /* u32_1 */ 0x00, 0x01, 0x11, 0x70,
237 /* u64_1 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, 0xf4, 0x7c,
238 /* i8_1 */ 0x41,
239 /* i8_2 */ 0xbf,
240 /* i16_1 */ 0x02, 0x00,
241 /* i16_2 */ 0xfe, 0x0,
242 /* i32_1 */ 0x00, 0x01, 0x11, 0x70,
243 /* i32_2 */ 0xff, 0xfe, 0xee, 0x90,
244 /* i64_1 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, 0xf4, 0x7c,
245 /* i64_2 */ 0xff, 0xff, 0xff, 0xff, 0xff, 0x47, 0x0b, 0x84,
246 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
247 };
248
249 static void obj_simple_copy(void *target, void *source)
250 {
251 memcpy(target, source, sizeof(TestSimple));
252 }
253
254 static void test_simple_primitive(void)
255 {
256 TestSimple obj, obj_clone;
257
258 memset(&obj, 0, sizeof(obj));
259 save_vmstate(&vmstate_simple_primitive, &obj_simple);
260
261 compare_vmstate(wire_simple_primitive, sizeof(wire_simple_primitive));
262
263 SUCCESS(load_vmstate(&vmstate_simple_primitive, &obj, &obj_clone,
264 obj_simple_copy, 1, wire_simple_primitive,
265 sizeof(wire_simple_primitive)));
266
267 #define FIELD_EQUAL(name) g_assert_cmpint(obj.name, ==, obj_simple.name)
268
269 FIELD_EQUAL(b_1);
270 FIELD_EQUAL(b_2);
271 FIELD_EQUAL(u8_1);
272 FIELD_EQUAL(u16_1);
273 FIELD_EQUAL(u32_1);
274 FIELD_EQUAL(u64_1);
275 FIELD_EQUAL(i8_1);
276 FIELD_EQUAL(i8_2);
277 FIELD_EQUAL(i16_1);
278 FIELD_EQUAL(i16_2);
279 FIELD_EQUAL(i32_1);
280 FIELD_EQUAL(i32_2);
281 FIELD_EQUAL(i64_1);
282 FIELD_EQUAL(i64_2);
283 }
284
285 typedef struct TestSimpleArray {
286 uint16_t u16_1[3];
287 } TestSimpleArray;
288
289 /* Object instantiation, we are going to use it in more than one test */
290
291 TestSimpleArray obj_simple_arr = {
292 .u16_1 = { 0x42, 0x43, 0x44 },
293 };
294
295 /* Description of the values. If you add a primitive type
296 you are expected to add a test here */
297
298 static const VMStateDescription vmstate_simple_arr = {
299 .name = "simple/array",
300 .version_id = 1,
301 .minimum_version_id = 1,
302 .fields = (VMStateField[]) {
303 VMSTATE_UINT16_ARRAY(u16_1, TestSimpleArray, 3),
304 VMSTATE_END_OF_LIST()
305 }
306 };
307
308 uint8_t wire_simple_arr[] = {
309 /* u16_1 */ 0x00, 0x42,
310 /* u16_1 */ 0x00, 0x43,
311 /* u16_1 */ 0x00, 0x44,
312 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
313 };
314
315 static void obj_simple_arr_copy(void *target, void *source)
316 {
317 memcpy(target, source, sizeof(TestSimpleArray));
318 }
319
320 static void test_simple_array(void)
321 {
322 TestSimpleArray obj, obj_clone;
323
324 memset(&obj, 0, sizeof(obj));
325 save_vmstate(&vmstate_simple_arr, &obj_simple_arr);
326
327 compare_vmstate(wire_simple_arr, sizeof(wire_simple_arr));
328
329 SUCCESS(load_vmstate(&vmstate_simple_arr, &obj, &obj_clone,
330 obj_simple_arr_copy, 1, wire_simple_arr,
331 sizeof(wire_simple_arr)));
332 }
333
334 typedef struct TestStruct {
335 uint32_t a, b, c, e;
336 uint64_t d, f;
337 bool skip_c_e;
338 } TestStruct;
339
340 static const VMStateDescription vmstate_versioned = {
341 .name = "test/versioned",
342 .version_id = 2,
343 .minimum_version_id = 1,
344 .fields = (VMStateField[]) {
345 VMSTATE_UINT32(a, TestStruct),
346 VMSTATE_UINT32_V(b, TestStruct, 2), /* Versioned field in the middle, so
347 * we catch bugs more easily.
348 */
349 VMSTATE_UINT32(c, TestStruct),
350 VMSTATE_UINT64(d, TestStruct),
351 VMSTATE_UINT32_V(e, TestStruct, 2),
352 VMSTATE_UINT64_V(f, TestStruct, 2),
353 VMSTATE_END_OF_LIST()
354 }
355 };
356
357 static void test_load_v1(void)
358 {
359 uint8_t buf[] = {
360 0, 0, 0, 10, /* a */
361 0, 0, 0, 30, /* c */
362 0, 0, 0, 0, 0, 0, 0, 40, /* d */
363 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
364 };
365 save_buffer(buf, sizeof(buf));
366
367 QEMUFile *loading = open_test_file(false);
368 TestStruct obj = { .b = 200, .e = 500, .f = 600 };
369 vmstate_load_state(loading, &vmstate_versioned, &obj, 1);
370 g_assert(!qemu_file_get_error(loading));
371 g_assert_cmpint(obj.a, ==, 10);
372 g_assert_cmpint(obj.b, ==, 200);
373 g_assert_cmpint(obj.c, ==, 30);
374 g_assert_cmpint(obj.d, ==, 40);
375 g_assert_cmpint(obj.e, ==, 500);
376 g_assert_cmpint(obj.f, ==, 600);
377 qemu_fclose(loading);
378 }
379
380 static void test_load_v2(void)
381 {
382 uint8_t buf[] = {
383 0, 0, 0, 10, /* a */
384 0, 0, 0, 20, /* b */
385 0, 0, 0, 30, /* c */
386 0, 0, 0, 0, 0, 0, 0, 40, /* d */
387 0, 0, 0, 50, /* e */
388 0, 0, 0, 0, 0, 0, 0, 60, /* f */
389 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
390 };
391 save_buffer(buf, sizeof(buf));
392
393 QEMUFile *loading = open_test_file(false);
394 TestStruct obj;
395 vmstate_load_state(loading, &vmstate_versioned, &obj, 2);
396 g_assert_cmpint(obj.a, ==, 10);
397 g_assert_cmpint(obj.b, ==, 20);
398 g_assert_cmpint(obj.c, ==, 30);
399 g_assert_cmpint(obj.d, ==, 40);
400 g_assert_cmpint(obj.e, ==, 50);
401 g_assert_cmpint(obj.f, ==, 60);
402 qemu_fclose(loading);
403 }
404
405 static bool test_skip(void *opaque, int version_id)
406 {
407 TestStruct *t = (TestStruct *)opaque;
408 return !t->skip_c_e;
409 }
410
411 static const VMStateDescription vmstate_skipping = {
412 .name = "test/skip",
413 .version_id = 2,
414 .minimum_version_id = 1,
415 .fields = (VMStateField[]) {
416 VMSTATE_UINT32(a, TestStruct),
417 VMSTATE_UINT32(b, TestStruct),
418 VMSTATE_UINT32_TEST(c, TestStruct, test_skip),
419 VMSTATE_UINT64(d, TestStruct),
420 VMSTATE_UINT32_TEST(e, TestStruct, test_skip),
421 VMSTATE_UINT64_V(f, TestStruct, 2),
422 VMSTATE_END_OF_LIST()
423 }
424 };
425
426
427 static void test_save_noskip(void)
428 {
429 QEMUFile *fsave = open_test_file(true);
430 TestStruct obj = { .a = 1, .b = 2, .c = 3, .d = 4, .e = 5, .f = 6,
431 .skip_c_e = false };
432 int ret = vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL);
433 g_assert(!ret);
434 g_assert(!qemu_file_get_error(fsave));
435
436 uint8_t expected[] = {
437 0, 0, 0, 1, /* a */
438 0, 0, 0, 2, /* b */
439 0, 0, 0, 3, /* c */
440 0, 0, 0, 0, 0, 0, 0, 4, /* d */
441 0, 0, 0, 5, /* e */
442 0, 0, 0, 0, 0, 0, 0, 6, /* f */
443 };
444
445 qemu_fclose(fsave);
446 compare_vmstate(expected, sizeof(expected));
447 }
448
449 static void test_save_skip(void)
450 {
451 QEMUFile *fsave = open_test_file(true);
452 TestStruct obj = { .a = 1, .b = 2, .c = 3, .d = 4, .e = 5, .f = 6,
453 .skip_c_e = true };
454 int ret = vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL);
455 g_assert(!ret);
456 g_assert(!qemu_file_get_error(fsave));
457
458 uint8_t expected[] = {
459 0, 0, 0, 1, /* a */
460 0, 0, 0, 2, /* b */
461 0, 0, 0, 0, 0, 0, 0, 4, /* d */
462 0, 0, 0, 0, 0, 0, 0, 6, /* f */
463 };
464
465 qemu_fclose(fsave);
466 compare_vmstate(expected, sizeof(expected));
467 }
468
469 static void test_load_noskip(void)
470 {
471 uint8_t buf[] = {
472 0, 0, 0, 10, /* a */
473 0, 0, 0, 20, /* b */
474 0, 0, 0, 30, /* c */
475 0, 0, 0, 0, 0, 0, 0, 40, /* d */
476 0, 0, 0, 50, /* e */
477 0, 0, 0, 0, 0, 0, 0, 60, /* f */
478 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
479 };
480 save_buffer(buf, sizeof(buf));
481
482 QEMUFile *loading = open_test_file(false);
483 TestStruct obj = { .skip_c_e = false };
484 vmstate_load_state(loading, &vmstate_skipping, &obj, 2);
485 g_assert(!qemu_file_get_error(loading));
486 g_assert_cmpint(obj.a, ==, 10);
487 g_assert_cmpint(obj.b, ==, 20);
488 g_assert_cmpint(obj.c, ==, 30);
489 g_assert_cmpint(obj.d, ==, 40);
490 g_assert_cmpint(obj.e, ==, 50);
491 g_assert_cmpint(obj.f, ==, 60);
492 qemu_fclose(loading);
493 }
494
495 static void test_load_skip(void)
496 {
497 uint8_t buf[] = {
498 0, 0, 0, 10, /* a */
499 0, 0, 0, 20, /* b */
500 0, 0, 0, 0, 0, 0, 0, 40, /* d */
501 0, 0, 0, 0, 0, 0, 0, 60, /* f */
502 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
503 };
504 save_buffer(buf, sizeof(buf));
505
506 QEMUFile *loading = open_test_file(false);
507 TestStruct obj = { .skip_c_e = true, .c = 300, .e = 500 };
508 vmstate_load_state(loading, &vmstate_skipping, &obj, 2);
509 g_assert(!qemu_file_get_error(loading));
510 g_assert_cmpint(obj.a, ==, 10);
511 g_assert_cmpint(obj.b, ==, 20);
512 g_assert_cmpint(obj.c, ==, 300);
513 g_assert_cmpint(obj.d, ==, 40);
514 g_assert_cmpint(obj.e, ==, 500);
515 g_assert_cmpint(obj.f, ==, 60);
516 qemu_fclose(loading);
517 }
518
519 typedef struct {
520 int32_t i;
521 } TestStructTriv;
522
523 const VMStateDescription vmsd_tst = {
524 .name = "test/tst",
525 .version_id = 1,
526 .minimum_version_id = 1,
527 .fields = (VMStateField[]) {
528 VMSTATE_INT32(i, TestStructTriv),
529 VMSTATE_END_OF_LIST()
530 }
531 };
532
533 /* test array migration */
534
535 #define AR_SIZE 4
536
537 typedef struct {
538 TestStructTriv *ar[AR_SIZE];
539 } TestArrayOfPtrToStuct;
540
541 const VMStateDescription vmsd_arps = {
542 .name = "test/arps",
543 .version_id = 1,
544 .minimum_version_id = 1,
545 .fields = (VMStateField[]) {
546 VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(ar, TestArrayOfPtrToStuct,
547 AR_SIZE, 0, vmsd_tst, TestStructTriv),
548 VMSTATE_END_OF_LIST()
549 }
550 };
551
552 static uint8_t wire_arr_ptr_no0[] = {
553 0x00, 0x00, 0x00, 0x00,
554 0x00, 0x00, 0x00, 0x01,
555 0x00, 0x00, 0x00, 0x02,
556 0x00, 0x00, 0x00, 0x03,
557 QEMU_VM_EOF
558 };
559
560 static void test_arr_ptr_str_no0_save(void)
561 {
562 TestStructTriv ar[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
563 TestArrayOfPtrToStuct sample = {.ar = {&ar[0], &ar[1], &ar[2], &ar[3]} };
564
565 save_vmstate(&vmsd_arps, &sample);
566 compare_vmstate(wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0));
567 }
568
569 static void test_arr_ptr_str_no0_load(void)
570 {
571 TestStructTriv ar_gt[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
572 TestStructTriv ar[AR_SIZE] = {};
573 TestArrayOfPtrToStuct obj = {.ar = {&ar[0], &ar[1], &ar[2], &ar[3]} };
574 int idx;
575
576 save_buffer(wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0));
577 SUCCESS(load_vmstate_one(&vmsd_arps, &obj, 1,
578 wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0)));
579 for (idx = 0; idx < AR_SIZE; ++idx) {
580 /* compare the target array ar with the ground truth array ar_gt */
581 g_assert_cmpint(ar_gt[idx].i, ==, ar[idx].i);
582 }
583 }
584
585 static uint8_t wire_arr_ptr_0[] = {
586 0x00, 0x00, 0x00, 0x00,
587 VMS_NULLPTR_MARKER,
588 0x00, 0x00, 0x00, 0x02,
589 0x00, 0x00, 0x00, 0x03,
590 QEMU_VM_EOF
591 };
592
593 static void test_arr_ptr_str_0_save(void)
594 {
595 TestStructTriv ar[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
596 TestArrayOfPtrToStuct sample = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
597
598 save_vmstate(&vmsd_arps, &sample);
599 compare_vmstate(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
600 }
601
602 static void test_arr_ptr_str_0_load(void)
603 {
604 TestStructTriv ar_gt[AR_SIZE] = {{.i = 0}, {.i = 0}, {.i = 2}, {.i = 3} };
605 TestStructTriv ar[AR_SIZE] = {};
606 TestArrayOfPtrToStuct obj = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
607 int idx;
608
609 save_buffer(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
610 SUCCESS(load_vmstate_one(&vmsd_arps, &obj, 1,
611 wire_arr_ptr_0, sizeof(wire_arr_ptr_0)));
612 for (idx = 0; idx < AR_SIZE; ++idx) {
613 /* compare the target array ar with the ground truth array ar_gt */
614 g_assert_cmpint(ar_gt[idx].i, ==, ar[idx].i);
615 }
616 for (idx = 0; idx < AR_SIZE; ++idx) {
617 if (idx == 1) {
618 g_assert_cmpint((uintptr_t)(obj.ar[idx]), ==, 0);
619 } else {
620 g_assert_cmpint((uintptr_t)(obj.ar[idx]), !=, 0);
621 }
622 }
623 }
624
625 typedef struct TestArrayOfPtrToInt {
626 int32_t *ar[AR_SIZE];
627 } TestArrayOfPtrToInt;
628
629 const VMStateDescription vmsd_arpp = {
630 .name = "test/arps",
631 .version_id = 1,
632 .minimum_version_id = 1,
633 .fields = (VMStateField[]) {
634 VMSTATE_ARRAY_OF_POINTER(ar, TestArrayOfPtrToInt,
635 AR_SIZE, 0, vmstate_info_int32, int32_t*),
636 VMSTATE_END_OF_LIST()
637 }
638 };
639
640 static void test_arr_ptr_prim_0_save(void)
641 {
642 int32_t ar[AR_SIZE] = {0 , 1, 2, 3};
643 TestArrayOfPtrToInt sample = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
644
645 save_vmstate(&vmsd_arpp, &sample);
646 compare_vmstate(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
647 }
648
649 static void test_arr_ptr_prim_0_load(void)
650 {
651 int32_t ar_gt[AR_SIZE] = {0, 1, 2, 3};
652 int32_t ar[AR_SIZE] = {3 , 42, 1, 0};
653 TestArrayOfPtrToInt obj = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
654 int idx;
655
656 save_buffer(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
657 SUCCESS(load_vmstate_one(&vmsd_arpp, &obj, 1,
658 wire_arr_ptr_0, sizeof(wire_arr_ptr_0)));
659 for (idx = 0; idx < AR_SIZE; ++idx) {
660 /* compare the target array ar with the ground truth array ar_gt */
661 if (idx == 1) {
662 g_assert_cmpint(42, ==, ar[idx]);
663 } else {
664 g_assert_cmpint(ar_gt[idx], ==, ar[idx]);
665 }
666 }
667 }
668
669 /* test QTAILQ migration */
670 typedef struct TestQtailqElement TestQtailqElement;
671
672 struct TestQtailqElement {
673 bool b;
674 uint8_t u8;
675 QTAILQ_ENTRY(TestQtailqElement) next;
676 };
677
678 typedef struct TestQtailq {
679 int16_t i16;
680 QTAILQ_HEAD(, TestQtailqElement) q;
681 int32_t i32;
682 } TestQtailq;
683
684 static const VMStateDescription vmstate_q_element = {
685 .name = "test/queue-element",
686 .version_id = 1,
687 .minimum_version_id = 1,
688 .fields = (VMStateField[]) {
689 VMSTATE_BOOL(b, TestQtailqElement),
690 VMSTATE_UINT8(u8, TestQtailqElement),
691 VMSTATE_END_OF_LIST()
692 },
693 };
694
695 static const VMStateDescription vmstate_q = {
696 .name = "test/queue",
697 .version_id = 1,
698 .minimum_version_id = 1,
699 .fields = (VMStateField[]) {
700 VMSTATE_INT16(i16, TestQtailq),
701 VMSTATE_QTAILQ_V(q, TestQtailq, 1, vmstate_q_element, TestQtailqElement,
702 next),
703 VMSTATE_INT32(i32, TestQtailq),
704 VMSTATE_END_OF_LIST()
705 }
706 };
707
708 uint8_t wire_q[] = {
709 /* i16 */ 0xfe, 0x0,
710 /* start of element 0 of q */ 0x01,
711 /* .b */ 0x01,
712 /* .u8 */ 0x82,
713 /* start of element 1 of q */ 0x01,
714 /* b */ 0x00,
715 /* u8 */ 0x41,
716 /* end of q */ 0x00,
717 /* i32 */ 0x00, 0x01, 0x11, 0x70,
718 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
719 };
720
721 static void test_save_q(void)
722 {
723 TestQtailq obj_q = {
724 .i16 = -512,
725 .i32 = 70000,
726 };
727
728 TestQtailqElement obj_qe1 = {
729 .b = true,
730 .u8 = 130,
731 };
732
733 TestQtailqElement obj_qe2 = {
734 .b = false,
735 .u8 = 65,
736 };
737
738 QTAILQ_INIT(&obj_q.q);
739 QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe1, next);
740 QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe2, next);
741
742 save_vmstate(&vmstate_q, &obj_q);
743 compare_vmstate(wire_q, sizeof(wire_q));
744 }
745
746 static void test_load_q(void)
747 {
748 TestQtailq obj_q = {
749 .i16 = -512,
750 .i32 = 70000,
751 };
752
753 TestQtailqElement obj_qe1 = {
754 .b = true,
755 .u8 = 130,
756 };
757
758 TestQtailqElement obj_qe2 = {
759 .b = false,
760 .u8 = 65,
761 };
762
763 QTAILQ_INIT(&obj_q.q);
764 QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe1, next);
765 QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe2, next);
766
767 QEMUFile *fsave = open_test_file(true);
768
769 qemu_put_buffer(fsave, wire_q, sizeof(wire_q));
770 g_assert(!qemu_file_get_error(fsave));
771 qemu_fclose(fsave);
772
773 QEMUFile *fload = open_test_file(false);
774 TestQtailq tgt;
775
776 QTAILQ_INIT(&tgt.q);
777 vmstate_load_state(fload, &vmstate_q, &tgt, 1);
778 char eof = qemu_get_byte(fload);
779 g_assert(!qemu_file_get_error(fload));
780 g_assert_cmpint(tgt.i16, ==, obj_q.i16);
781 g_assert_cmpint(tgt.i32, ==, obj_q.i32);
782 g_assert_cmpint(eof, ==, QEMU_VM_EOF);
783
784 TestQtailqElement *qele_from = QTAILQ_FIRST(&obj_q.q);
785 TestQtailqElement *qlast_from = QTAILQ_LAST(&obj_q.q);
786 TestQtailqElement *qele_to = QTAILQ_FIRST(&tgt.q);
787 TestQtailqElement *qlast_to = QTAILQ_LAST(&tgt.q);
788
789 while (1) {
790 g_assert_cmpint(qele_to->b, ==, qele_from->b);
791 g_assert_cmpint(qele_to->u8, ==, qele_from->u8);
792 if ((qele_from == qlast_from) || (qele_to == qlast_to)) {
793 break;
794 }
795 qele_from = QTAILQ_NEXT(qele_from, next);
796 qele_to = QTAILQ_NEXT(qele_to, next);
797 }
798
799 g_assert_cmpint((uintptr_t) qele_from, ==, (uintptr_t) qlast_from);
800 g_assert_cmpint((uintptr_t) qele_to, ==, (uintptr_t) qlast_to);
801
802 /* clean up */
803 TestQtailqElement *qele;
804 while (!QTAILQ_EMPTY(&tgt.q)) {
805 qele = QTAILQ_LAST(&tgt.q);
806 QTAILQ_REMOVE(&tgt.q, qele, next);
807 free(qele);
808 qele = NULL;
809 }
810 qemu_fclose(fload);
811 }
812
813 /* interval (key) */
814 typedef struct TestGTreeInterval {
815 uint64_t low;
816 uint64_t high;
817 } TestGTreeInterval;
818
819 #define VMSTATE_INTERVAL \
820 { \
821 .name = "interval", \
822 .version_id = 1, \
823 .minimum_version_id = 1, \
824 .fields = (VMStateField[]) { \
825 VMSTATE_UINT64(low, TestGTreeInterval), \
826 VMSTATE_UINT64(high, TestGTreeInterval), \
827 VMSTATE_END_OF_LIST() \
828 } \
829 }
830
831 /* mapping (value) */
832 typedef struct TestGTreeMapping {
833 uint64_t phys_addr;
834 uint32_t flags;
835 } TestGTreeMapping;
836
837 #define VMSTATE_MAPPING \
838 { \
839 .name = "mapping", \
840 .version_id = 1, \
841 .minimum_version_id = 1, \
842 .fields = (VMStateField[]) { \
843 VMSTATE_UINT64(phys_addr, TestGTreeMapping), \
844 VMSTATE_UINT32(flags, TestGTreeMapping), \
845 VMSTATE_END_OF_LIST() \
846 }, \
847 }
848
849 static const VMStateDescription vmstate_interval_mapping[2] = {
850 VMSTATE_MAPPING, /* value */
851 VMSTATE_INTERVAL /* key */
852 };
853
854 typedef struct TestGTreeDomain {
855 int32_t id;
856 GTree *mappings;
857 } TestGTreeDomain;
858
859 typedef struct TestGTreeIOMMU {
860 int32_t id;
861 GTree *domains;
862 } TestGTreeIOMMU;
863
864 /* Interval comparison function */
865 static gint interval_cmp(gconstpointer a, gconstpointer b, gpointer user_data)
866 {
867 TestGTreeInterval *inta = (TestGTreeInterval *)a;
868 TestGTreeInterval *intb = (TestGTreeInterval *)b;
869
870 if (inta->high < intb->low) {
871 return -1;
872 } else if (intb->high < inta->low) {
873 return 1;
874 } else {
875 return 0;
876 }
877 }
878
879 /* ID comparison function */
880 static gint int_cmp(gconstpointer a, gconstpointer b, gpointer user_data)
881 {
882 guint ua = GPOINTER_TO_UINT(a);
883 guint ub = GPOINTER_TO_UINT(b);
884 return (ua > ub) - (ua < ub);
885 }
886
887 static void destroy_domain(gpointer data)
888 {
889 TestGTreeDomain *domain = (TestGTreeDomain *)data;
890
891 g_tree_destroy(domain->mappings);
892 g_free(domain);
893 }
894
895 static int domain_preload(void *opaque)
896 {
897 TestGTreeDomain *domain = opaque;
898
899 domain->mappings = g_tree_new_full((GCompareDataFunc)interval_cmp,
900 NULL, g_free, g_free);
901 return 0;
902 }
903
904 static int iommu_preload(void *opaque)
905 {
906 TestGTreeIOMMU *iommu = opaque;
907
908 iommu->domains = g_tree_new_full((GCompareDataFunc)int_cmp,
909 NULL, NULL, destroy_domain);
910 return 0;
911 }
912
913 static const VMStateDescription vmstate_domain = {
914 .name = "domain",
915 .version_id = 1,
916 .minimum_version_id = 1,
917 .pre_load = domain_preload,
918 .fields = (VMStateField[]) {
919 VMSTATE_INT32(id, TestGTreeDomain),
920 VMSTATE_GTREE_V(mappings, TestGTreeDomain, 1,
921 vmstate_interval_mapping,
922 TestGTreeInterval, TestGTreeMapping),
923 VMSTATE_END_OF_LIST()
924 }
925 };
926
927 /* test QLIST Migration */
928
929 typedef struct TestQListElement {
930 uint32_t id;
931 QLIST_ENTRY(TestQListElement) next;
932 } TestQListElement;
933
934 typedef struct TestQListContainer {
935 uint32_t id;
936 QLIST_HEAD(, TestQListElement) list;
937 } TestQListContainer;
938
939 static const VMStateDescription vmstate_qlist_element = {
940 .name = "test/queue list",
941 .version_id = 1,
942 .minimum_version_id = 1,
943 .fields = (VMStateField[]) {
944 VMSTATE_UINT32(id, TestQListElement),
945 VMSTATE_END_OF_LIST()
946 }
947 };
948
949 static const VMStateDescription vmstate_iommu = {
950 .name = "iommu",
951 .version_id = 1,
952 .minimum_version_id = 1,
953 .pre_load = iommu_preload,
954 .fields = (VMStateField[]) {
955 VMSTATE_INT32(id, TestGTreeIOMMU),
956 VMSTATE_GTREE_DIRECT_KEY_V(domains, TestGTreeIOMMU, 1,
957 &vmstate_domain, TestGTreeDomain),
958 VMSTATE_END_OF_LIST()
959 }
960 };
961
962 static const VMStateDescription vmstate_container = {
963 .name = "test/container/qlist",
964 .version_id = 1,
965 .minimum_version_id = 1,
966 .fields = (VMStateField[]) {
967 VMSTATE_UINT32(id, TestQListContainer),
968 VMSTATE_QLIST_V(list, TestQListContainer, 1, vmstate_qlist_element,
969 TestQListElement, next),
970 VMSTATE_END_OF_LIST()
971 }
972 };
973
974 uint8_t first_domain_dump[] = {
975 /* id */
976 0x00, 0x0, 0x0, 0x6,
977 0x00, 0x0, 0x0, 0x2, /* 2 mappings */
978 0x1, /* start of a */
979 /* a */
980 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
981 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF,
982 /* map_a */
983 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x00,
984 0x00, 0x00, 0x00, 0x01,
985 0x1, /* start of b */
986 /* b */
987 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00,
988 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0xFF,
989 /* map_b */
990 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00,
991 0x00, 0x00, 0x00, 0x02,
992 0x0, /* end of gtree */
993 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
994 };
995
996 static TestGTreeDomain *create_first_domain(void)
997 {
998 TestGTreeDomain *domain;
999 TestGTreeMapping *map_a, *map_b;
1000 TestGTreeInterval *a, *b;
1001
1002 domain = g_new0(TestGTreeDomain, 1);
1003 domain->id = 6;
1004
1005 a = g_new0(TestGTreeInterval, 1);
1006 a->low = 0x1000;
1007 a->high = 0x1FFF;
1008
1009 b = g_new0(TestGTreeInterval, 1);
1010 b->low = 0x4000;
1011 b->high = 0x4FFF;
1012
1013 map_a = g_new0(TestGTreeMapping, 1);
1014 map_a->phys_addr = 0xa000;
1015 map_a->flags = 1;
1016
1017 map_b = g_new0(TestGTreeMapping, 1);
1018 map_b->phys_addr = 0xe0000;
1019 map_b->flags = 2;
1020
1021 domain->mappings = g_tree_new_full((GCompareDataFunc)interval_cmp, NULL,
1022 (GDestroyNotify)g_free,
1023 (GDestroyNotify)g_free);
1024 g_tree_insert(domain->mappings, a, map_a);
1025 g_tree_insert(domain->mappings, b, map_b);
1026 return domain;
1027 }
1028
1029 static void test_gtree_save_domain(void)
1030 {
1031 TestGTreeDomain *first_domain = create_first_domain();
1032
1033 save_vmstate(&vmstate_domain, first_domain);
1034 compare_vmstate(first_domain_dump, sizeof(first_domain_dump));
1035 destroy_domain(first_domain);
1036 }
1037
1038 struct match_node_data {
1039 GTree *tree;
1040 gpointer key;
1041 gpointer value;
1042 };
1043
1044 struct tree_cmp_data {
1045 GTree *tree1;
1046 GTree *tree2;
1047 GTraverseFunc match_node;
1048 };
1049
1050 static gboolean match_interval_mapping_node(gpointer key,
1051 gpointer value, gpointer data)
1052 {
1053 TestGTreeMapping *map_a, *map_b;
1054 TestGTreeInterval *a, *b;
1055 struct match_node_data *d = (struct match_node_data *)data;
1056 a = (TestGTreeInterval *)key;
1057 b = (TestGTreeInterval *)d->key;
1058
1059 map_a = (TestGTreeMapping *)value;
1060 map_b = (TestGTreeMapping *)d->value;
1061
1062 assert(a->low == b->low);
1063 assert(a->high == b->high);
1064 assert(map_a->phys_addr == map_b->phys_addr);
1065 assert(map_a->flags == map_b->flags);
1066 g_tree_remove(d->tree, key);
1067 return true;
1068 }
1069
1070 static gboolean diff_tree(gpointer key, gpointer value, gpointer data)
1071 {
1072 struct tree_cmp_data *tp = (struct tree_cmp_data *)data;
1073 struct match_node_data d = {tp->tree2, key, value};
1074
1075 g_tree_foreach(tp->tree2, tp->match_node, &d);
1076 return false;
1077 }
1078
1079 static void compare_trees(GTree *tree1, GTree *tree2,
1080 GTraverseFunc function)
1081 {
1082 struct tree_cmp_data tp = {tree1, tree2, function};
1083
1084 assert(g_tree_nnodes(tree1) == g_tree_nnodes(tree2));
1085 g_tree_foreach(tree1, diff_tree, &tp);
1086 g_tree_destroy(g_tree_ref(tree1));
1087 }
1088
1089 static void diff_domain(TestGTreeDomain *d1, TestGTreeDomain *d2)
1090 {
1091 assert(d1->id == d2->id);
1092 compare_trees(d1->mappings, d2->mappings, match_interval_mapping_node);
1093 }
1094
1095 static gboolean match_domain_node(gpointer key, gpointer value, gpointer data)
1096 {
1097 uint64_t id1, id2;
1098 TestGTreeDomain *d1, *d2;
1099 struct match_node_data *d = (struct match_node_data *)data;
1100
1101 id1 = (uint64_t)(uintptr_t)key;
1102 id2 = (uint64_t)(uintptr_t)d->key;
1103 d1 = (TestGTreeDomain *)value;
1104 d2 = (TestGTreeDomain *)d->value;
1105 assert(id1 == id2);
1106 diff_domain(d1, d2);
1107 g_tree_remove(d->tree, key);
1108 return true;
1109 }
1110
1111 static void diff_iommu(TestGTreeIOMMU *iommu1, TestGTreeIOMMU *iommu2)
1112 {
1113 assert(iommu1->id == iommu2->id);
1114 compare_trees(iommu1->domains, iommu2->domains, match_domain_node);
1115 }
1116
1117 static void test_gtree_load_domain(void)
1118 {
1119 TestGTreeDomain *dest_domain = g_new0(TestGTreeDomain, 1);
1120 TestGTreeDomain *orig_domain = create_first_domain();
1121 QEMUFile *fload, *fsave;
1122 char eof;
1123
1124 fsave = open_test_file(true);
1125 qemu_put_buffer(fsave, first_domain_dump, sizeof(first_domain_dump));
1126 g_assert(!qemu_file_get_error(fsave));
1127 qemu_fclose(fsave);
1128
1129 fload = open_test_file(false);
1130
1131 vmstate_load_state(fload, &vmstate_domain, dest_domain, 1);
1132 eof = qemu_get_byte(fload);
1133 g_assert(!qemu_file_get_error(fload));
1134 g_assert_cmpint(orig_domain->id, ==, dest_domain->id);
1135 g_assert_cmpint(eof, ==, QEMU_VM_EOF);
1136
1137 diff_domain(orig_domain, dest_domain);
1138 destroy_domain(orig_domain);
1139 destroy_domain(dest_domain);
1140 qemu_fclose(fload);
1141 }
1142
1143 uint8_t iommu_dump[] = {
1144 /* iommu id */
1145 0x00, 0x0, 0x0, 0x7,
1146 0x00, 0x0, 0x0, 0x2, /* 2 domains */
1147 0x1,/* start of domain 5 */
1148 0x00, 0x00, 0x00, 0x00, 0x00, 0x0, 0x0, 0x5, /* key = 5 */
1149 0x00, 0x0, 0x0, 0x5, /* domain1 id */
1150 0x00, 0x0, 0x0, 0x1, /* 1 mapping */
1151 0x1, /* start of mappings */
1152 /* c */
1153 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
1154 0x00, 0x00, 0x00, 0x00, 0x01, 0xFF, 0xFF, 0xFF,
1155 /* map_c */
1156 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00,
1157 0x00, 0x0, 0x0, 0x3,
1158 0x0, /* end of domain1 mappings*/
1159 0x1,/* start of domain 6 */
1160 0x00, 0x00, 0x00, 0x00, 0x00, 0x0, 0x0, 0x6, /* key = 6 */
1161 0x00, 0x0, 0x0, 0x6, /* domain6 id */
1162 0x00, 0x0, 0x0, 0x2, /* 2 mappings */
1163 0x1, /* start of a */
1164 /* a */
1165 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
1166 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0xFF,
1167 /* map_a */
1168 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0x00,
1169 0x00, 0x00, 0x00, 0x01,
1170 0x1, /* start of b */
1171 /* b */
1172 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00,
1173 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0xFF,
1174 /* map_b */
1175 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00,
1176 0x00, 0x00, 0x00, 0x02,
1177 0x0, /* end of domain6 mappings*/
1178 0x0, /* end of domains */
1179 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
1180 };
1181
1182 static TestGTreeIOMMU *create_iommu(void)
1183 {
1184 TestGTreeIOMMU *iommu = g_new0(TestGTreeIOMMU, 1);
1185 TestGTreeDomain *first_domain = create_first_domain();
1186 TestGTreeDomain *second_domain;
1187 TestGTreeMapping *map_c;
1188 TestGTreeInterval *c;
1189
1190 iommu->id = 7;
1191 iommu->domains = g_tree_new_full((GCompareDataFunc)int_cmp, NULL,
1192 NULL,
1193 destroy_domain);
1194
1195 second_domain = g_new0(TestGTreeDomain, 1);
1196 second_domain->id = 5;
1197 second_domain->mappings = g_tree_new_full((GCompareDataFunc)interval_cmp,
1198 NULL,
1199 (GDestroyNotify)g_free,
1200 (GDestroyNotify)g_free);
1201
1202 g_tree_insert(iommu->domains, GUINT_TO_POINTER(6), first_domain);
1203 g_tree_insert(iommu->domains, (gpointer)0x0000000000000005, second_domain);
1204
1205 c = g_new0(TestGTreeInterval, 1);
1206 c->low = 0x1000000;
1207 c->high = 0x1FFFFFF;
1208
1209 map_c = g_new0(TestGTreeMapping, 1);
1210 map_c->phys_addr = 0xF000000;
1211 map_c->flags = 0x3;
1212
1213 g_tree_insert(second_domain->mappings, c, map_c);
1214 return iommu;
1215 }
1216
1217 static void destroy_iommu(TestGTreeIOMMU *iommu)
1218 {
1219 g_tree_destroy(iommu->domains);
1220 g_free(iommu);
1221 }
1222
1223 static void test_gtree_save_iommu(void)
1224 {
1225 TestGTreeIOMMU *iommu = create_iommu();
1226
1227 save_vmstate(&vmstate_iommu, iommu);
1228 compare_vmstate(iommu_dump, sizeof(iommu_dump));
1229 destroy_iommu(iommu);
1230 }
1231
1232 static void test_gtree_load_iommu(void)
1233 {
1234 TestGTreeIOMMU *dest_iommu = g_new0(TestGTreeIOMMU, 1);
1235 TestGTreeIOMMU *orig_iommu = create_iommu();
1236 QEMUFile *fsave, *fload;
1237 char eof;
1238
1239 fsave = open_test_file(true);
1240 qemu_put_buffer(fsave, iommu_dump, sizeof(iommu_dump));
1241 g_assert(!qemu_file_get_error(fsave));
1242 qemu_fclose(fsave);
1243
1244 fload = open_test_file(false);
1245 vmstate_load_state(fload, &vmstate_iommu, dest_iommu, 1);
1246 eof = qemu_get_byte(fload);
1247 g_assert(!qemu_file_get_error(fload));
1248 g_assert_cmpint(orig_iommu->id, ==, dest_iommu->id);
1249 g_assert_cmpint(eof, ==, QEMU_VM_EOF);
1250
1251 diff_iommu(orig_iommu, dest_iommu);
1252 destroy_iommu(orig_iommu);
1253 destroy_iommu(dest_iommu);
1254 qemu_fclose(fload);
1255 }
1256
1257 static uint8_t qlist_dump[] = {
1258 0x00, 0x00, 0x00, 0x01, /* container id */
1259 0x1, /* start of a */
1260 0x00, 0x00, 0x00, 0x0a,
1261 0x1, /* start of b */
1262 0x00, 0x00, 0x0b, 0x00,
1263 0x1, /* start of c */
1264 0x00, 0x0c, 0x00, 0x00,
1265 0x1, /* start of d */
1266 0x0d, 0x00, 0x00, 0x00,
1267 0x0, /* end of list */
1268 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
1269 };
1270
1271 static TestQListContainer *alloc_container(void)
1272 {
1273 TestQListElement *a = g_new(TestQListElement, 1);
1274 TestQListElement *b = g_new(TestQListElement, 1);
1275 TestQListElement *c = g_new(TestQListElement, 1);
1276 TestQListElement *d = g_new(TestQListElement, 1);
1277 TestQListContainer *container = g_new(TestQListContainer, 1);
1278
1279 a->id = 0x0a;
1280 b->id = 0x0b00;
1281 c->id = 0xc0000;
1282 d->id = 0xd000000;
1283 container->id = 1;
1284
1285 QLIST_INIT(&container->list);
1286 QLIST_INSERT_HEAD(&container->list, d, next);
1287 QLIST_INSERT_HEAD(&container->list, c, next);
1288 QLIST_INSERT_HEAD(&container->list, b, next);
1289 QLIST_INSERT_HEAD(&container->list, a, next);
1290 return container;
1291 }
1292
1293 static void free_container(TestQListContainer *container)
1294 {
1295 TestQListElement *iter, *tmp;
1296
1297 QLIST_FOREACH_SAFE(iter, &container->list, next, tmp) {
1298 QLIST_REMOVE(iter, next);
1299 g_free(iter);
1300 }
1301 g_free(container);
1302 }
1303
1304 static void compare_containers(TestQListContainer *c1, TestQListContainer *c2)
1305 {
1306 TestQListElement *first_item_c1, *first_item_c2;
1307
1308 while (!QLIST_EMPTY(&c1->list)) {
1309 first_item_c1 = QLIST_FIRST(&c1->list);
1310 first_item_c2 = QLIST_FIRST(&c2->list);
1311 assert(first_item_c2);
1312 assert(first_item_c1->id == first_item_c2->id);
1313 QLIST_REMOVE(first_item_c1, next);
1314 QLIST_REMOVE(first_item_c2, next);
1315 g_free(first_item_c1);
1316 g_free(first_item_c2);
1317 }
1318 assert(QLIST_EMPTY(&c2->list));
1319 }
1320
1321 /*
1322 * Check the prev & next fields are correct by doing list
1323 * manipulations on the container. We will do that for both
1324 * the source and the destination containers
1325 */
1326 static void manipulate_container(TestQListContainer *c)
1327 {
1328 TestQListElement *prev = NULL, *iter = QLIST_FIRST(&c->list);
1329 TestQListElement *elem;
1330
1331 elem = g_new(TestQListElement, 1);
1332 elem->id = 0x12;
1333 QLIST_INSERT_AFTER(iter, elem, next);
1334
1335 elem = g_new(TestQListElement, 1);
1336 elem->id = 0x13;
1337 QLIST_INSERT_HEAD(&c->list, elem, next);
1338
1339 while (iter) {
1340 prev = iter;
1341 iter = QLIST_NEXT(iter, next);
1342 }
1343
1344 elem = g_new(TestQListElement, 1);
1345 elem->id = 0x14;
1346 QLIST_INSERT_BEFORE(prev, elem, next);
1347
1348 elem = g_new(TestQListElement, 1);
1349 elem->id = 0x15;
1350 QLIST_INSERT_AFTER(prev, elem, next);
1351
1352 QLIST_REMOVE(prev, next);
1353 g_free(prev);
1354 }
1355
1356 static void test_save_qlist(void)
1357 {
1358 TestQListContainer *container = alloc_container();
1359
1360 save_vmstate(&vmstate_container, container);
1361 compare_vmstate(qlist_dump, sizeof(qlist_dump));
1362 free_container(container);
1363 }
1364
1365 static void test_load_qlist(void)
1366 {
1367 QEMUFile *fsave, *fload;
1368 TestQListContainer *orig_container = alloc_container();
1369 TestQListContainer *dest_container = g_new0(TestQListContainer, 1);
1370 char eof;
1371
1372 QLIST_INIT(&dest_container->list);
1373
1374 fsave = open_test_file(true);
1375 qemu_put_buffer(fsave, qlist_dump, sizeof(qlist_dump));
1376 g_assert(!qemu_file_get_error(fsave));
1377 qemu_fclose(fsave);
1378
1379 fload = open_test_file(false);
1380 vmstate_load_state(fload, &vmstate_container, dest_container, 1);
1381 eof = qemu_get_byte(fload);
1382 g_assert(!qemu_file_get_error(fload));
1383 g_assert_cmpint(eof, ==, QEMU_VM_EOF);
1384 manipulate_container(orig_container);
1385 manipulate_container(dest_container);
1386 compare_containers(orig_container, dest_container);
1387 free_container(orig_container);
1388 free_container(dest_container);
1389 qemu_fclose(fload);
1390 }
1391
1392 typedef struct TmpTestStruct {
1393 TestStruct *parent;
1394 int64_t diff;
1395 } TmpTestStruct;
1396
1397 static int tmp_child_pre_save(void *opaque)
1398 {
1399 struct TmpTestStruct *tts = opaque;
1400
1401 tts->diff = tts->parent->b - tts->parent->a;
1402
1403 return 0;
1404 }
1405
1406 static int tmp_child_post_load(void *opaque, int version_id)
1407 {
1408 struct TmpTestStruct *tts = opaque;
1409
1410 tts->parent->b = tts->parent->a + tts->diff;
1411
1412 return 0;
1413 }
1414
1415 static const VMStateDescription vmstate_tmp_back_to_parent = {
1416 .name = "test/tmp_child_parent",
1417 .fields = (VMStateField[]) {
1418 VMSTATE_UINT64(f, TestStruct),
1419 VMSTATE_END_OF_LIST()
1420 }
1421 };
1422
1423 static const VMStateDescription vmstate_tmp_child = {
1424 .name = "test/tmp_child",
1425 .pre_save = tmp_child_pre_save,
1426 .post_load = tmp_child_post_load,
1427 .fields = (VMStateField[]) {
1428 VMSTATE_INT64(diff, TmpTestStruct),
1429 VMSTATE_STRUCT_POINTER(parent, TmpTestStruct,
1430 vmstate_tmp_back_to_parent, TestStruct),
1431 VMSTATE_END_OF_LIST()
1432 }
1433 };
1434
1435 static const VMStateDescription vmstate_with_tmp = {
1436 .name = "test/with_tmp",
1437 .version_id = 1,
1438 .fields = (VMStateField[]) {
1439 VMSTATE_UINT32(a, TestStruct),
1440 VMSTATE_UINT64(d, TestStruct),
1441 VMSTATE_WITH_TMP(TestStruct, TmpTestStruct, vmstate_tmp_child),
1442 VMSTATE_END_OF_LIST()
1443 }
1444 };
1445
1446 static void obj_tmp_copy(void *target, void *source)
1447 {
1448 memcpy(target, source, sizeof(TestStruct));
1449 }
1450
1451 static void test_tmp_struct(void)
1452 {
1453 TestStruct obj, obj_clone;
1454
1455 uint8_t const wire_with_tmp[] = {
1456 /* u32 a */ 0x00, 0x00, 0x00, 0x02,
1457 /* u64 d */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
1458 /* diff */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
1459 /* u64 f */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,
1460 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
1461 };
1462
1463 memset(&obj, 0, sizeof(obj));
1464 obj.a = 2;
1465 obj.b = 4;
1466 obj.d = 1;
1467 obj.f = 8;
1468 save_vmstate(&vmstate_with_tmp, &obj);
1469
1470 compare_vmstate(wire_with_tmp, sizeof(wire_with_tmp));
1471
1472 memset(&obj, 0, sizeof(obj));
1473 SUCCESS(load_vmstate(&vmstate_with_tmp, &obj, &obj_clone,
1474 obj_tmp_copy, 1, wire_with_tmp,
1475 sizeof(wire_with_tmp)));
1476 g_assert_cmpint(obj.a, ==, 2); /* From top level vmsd */
1477 g_assert_cmpint(obj.b, ==, 4); /* from the post_load */
1478 g_assert_cmpint(obj.d, ==, 1); /* From top level vmsd */
1479 g_assert_cmpint(obj.f, ==, 8); /* From the child->parent */
1480 }
1481
1482 int main(int argc, char **argv)
1483 {
1484 g_autofree char *temp_file = g_strdup_printf("%s/vmst.test.XXXXXX",
1485 g_get_tmp_dir());
1486 temp_fd = mkstemp(temp_file);
1487 g_assert(temp_fd >= 0);
1488
1489 module_call_init(MODULE_INIT_QOM);
1490
1491 g_setenv("QTEST_SILENT_ERRORS", "1", 1);
1492
1493 g_test_init(&argc, &argv, NULL);
1494 g_test_add_func("/vmstate/simple/primitive", test_simple_primitive);
1495 g_test_add_func("/vmstate/simple/array", test_simple_array);
1496 g_test_add_func("/vmstate/versioned/load/v1", test_load_v1);
1497 g_test_add_func("/vmstate/versioned/load/v2", test_load_v2);
1498 g_test_add_func("/vmstate/field_exists/load/noskip", test_load_noskip);
1499 g_test_add_func("/vmstate/field_exists/load/skip", test_load_skip);
1500 g_test_add_func("/vmstate/field_exists/save/noskip", test_save_noskip);
1501 g_test_add_func("/vmstate/field_exists/save/skip", test_save_skip);
1502 g_test_add_func("/vmstate/array/ptr/str/no0/save",
1503 test_arr_ptr_str_no0_save);
1504 g_test_add_func("/vmstate/array/ptr/str/no0/load",
1505 test_arr_ptr_str_no0_load);
1506 g_test_add_func("/vmstate/array/ptr/str/0/save", test_arr_ptr_str_0_save);
1507 g_test_add_func("/vmstate/array/ptr/str/0/load",
1508 test_arr_ptr_str_0_load);
1509 g_test_add_func("/vmstate/array/ptr/prim/0/save",
1510 test_arr_ptr_prim_0_save);
1511 g_test_add_func("/vmstate/array/ptr/prim/0/load",
1512 test_arr_ptr_prim_0_load);
1513 g_test_add_func("/vmstate/qtailq/save/saveq", test_save_q);
1514 g_test_add_func("/vmstate/qtailq/load/loadq", test_load_q);
1515 g_test_add_func("/vmstate/gtree/save/savedomain", test_gtree_save_domain);
1516 g_test_add_func("/vmstate/gtree/load/loaddomain", test_gtree_load_domain);
1517 g_test_add_func("/vmstate/gtree/save/saveiommu", test_gtree_save_iommu);
1518 g_test_add_func("/vmstate/gtree/load/loadiommu", test_gtree_load_iommu);
1519 g_test_add_func("/vmstate/qlist/save/saveqlist", test_save_qlist);
1520 g_test_add_func("/vmstate/qlist/load/loadqlist", test_load_qlist);
1521 g_test_add_func("/vmstate/tmp_struct", test_tmp_struct);
1522 g_test_run();
1523
1524 close(temp_fd);
1525 unlink(temp_file);
1526
1527 return 0;
1528 }
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