kvm: remove hard dependency on pci
[qemu.git] / tests / test-vmstate.c
blobee292c7bee8fe776e7252e3debca8bb0dad6a97f
1 /*
2 * Test code for VMState
4 * Copyright (c) 2013 Red Hat Inc.
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
25 #include "qemu/osdep.h"
27 #include "qemu-common.h"
28 #include "../migration/migration.h"
29 #include "migration/vmstate.h"
30 #include "migration/qemu-file-types.h"
31 #include "../migration/qemu-file.h"
32 #include "../migration/qemu-file-channel.h"
33 #include "../migration/savevm.h"
34 #include "qemu/coroutine.h"
35 #include "io/channel-file.h"
37 static char temp_file[] = "/tmp/vmst.test.XXXXXX";
38 static int temp_fd;
41 /* Duplicate temp_fd and seek to the beginning of the file */
42 static QEMUFile *open_test_file(bool write)
44 int fd = dup(temp_fd);
45 QIOChannel *ioc;
46 QEMUFile *f;
48 lseek(fd, 0, SEEK_SET);
49 if (write) {
50 g_assert_cmpint(ftruncate(fd, 0), ==, 0);
52 ioc = QIO_CHANNEL(qio_channel_file_new_fd(fd));
53 if (write) {
54 f = qemu_fopen_channel_output(ioc);
55 } else {
56 f = qemu_fopen_channel_input(ioc);
58 object_unref(OBJECT(ioc));
59 return f;
62 #define SUCCESS(val) \
63 g_assert_cmpint((val), ==, 0)
65 #define FAILURE(val) \
66 g_assert_cmpint((val), !=, 0)
68 static void save_vmstate(const VMStateDescription *desc, void *obj)
70 QEMUFile *f = open_test_file(true);
72 /* Save file with vmstate */
73 vmstate_save_state(f, desc, obj, NULL);
74 qemu_put_byte(f, QEMU_VM_EOF);
75 g_assert(!qemu_file_get_error(f));
76 qemu_fclose(f);
79 static void save_buffer(const uint8_t *buf, size_t buf_size)
81 QEMUFile *fsave = open_test_file(true);
82 qemu_put_buffer(fsave, buf, buf_size);
83 qemu_fclose(fsave);
86 static void compare_vmstate(const uint8_t *wire, size_t size)
88 QEMUFile *f = open_test_file(false);
89 uint8_t result[size];
91 /* read back as binary */
93 g_assert_cmpint(qemu_get_buffer(f, result, sizeof(result)), ==,
94 sizeof(result));
95 g_assert(!qemu_file_get_error(f));
97 /* Compare that what is on the file is the same that what we
98 expected to be there */
99 SUCCESS(memcmp(result, wire, sizeof(result)));
101 /* Must reach EOF */
102 qemu_get_byte(f);
103 g_assert_cmpint(qemu_file_get_error(f), ==, -EIO);
105 qemu_fclose(f);
108 static int load_vmstate_one(const VMStateDescription *desc, void *obj,
109 int version, const uint8_t *wire, size_t size)
111 QEMUFile *f;
112 int ret;
114 f = open_test_file(true);
115 qemu_put_buffer(f, wire, size);
116 qemu_fclose(f);
118 f = open_test_file(false);
119 ret = vmstate_load_state(f, desc, obj, version);
120 if (ret) {
121 g_assert(qemu_file_get_error(f));
122 } else{
123 g_assert(!qemu_file_get_error(f));
125 qemu_fclose(f);
126 return ret;
130 static int load_vmstate(const VMStateDescription *desc,
131 void *obj, void *obj_clone,
132 void (*obj_copy)(void *, void*),
133 int version, const uint8_t *wire, size_t size)
135 /* We test with zero size */
136 obj_copy(obj_clone, obj);
137 FAILURE(load_vmstate_one(desc, obj, version, wire, 0));
139 /* Stream ends with QEMU_EOF, so we need at least 3 bytes to be
140 * able to test in the middle */
142 if (size > 3) {
144 /* We test with size - 2. We can't test size - 1 due to EOF tricks */
145 obj_copy(obj, obj_clone);
146 FAILURE(load_vmstate_one(desc, obj, version, wire, size - 2));
148 /* Test with size/2, first half of real state */
149 obj_copy(obj, obj_clone);
150 FAILURE(load_vmstate_one(desc, obj, version, wire, size/2));
152 /* Test with size/2, second half of real state */
153 obj_copy(obj, obj_clone);
154 FAILURE(load_vmstate_one(desc, obj, version, wire + (size/2), size/2));
157 obj_copy(obj, obj_clone);
158 return load_vmstate_one(desc, obj, version, wire, size);
161 /* Test struct that we are going to use for our tests */
163 typedef struct TestSimple {
164 bool b_1, b_2;
165 uint8_t u8_1;
166 uint16_t u16_1;
167 uint32_t u32_1;
168 uint64_t u64_1;
169 int8_t i8_1, i8_2;
170 int16_t i16_1, i16_2;
171 int32_t i32_1, i32_2;
172 int64_t i64_1, i64_2;
173 } TestSimple;
175 /* Object instantiation, we are going to use it in more than one test */
177 TestSimple obj_simple = {
178 .b_1 = true,
179 .b_2 = false,
180 .u8_1 = 130,
181 .u16_1 = 512,
182 .u32_1 = 70000,
183 .u64_1 = 12121212,
184 .i8_1 = 65,
185 .i8_2 = -65,
186 .i16_1 = 512,
187 .i16_2 = -512,
188 .i32_1 = 70000,
189 .i32_2 = -70000,
190 .i64_1 = 12121212,
191 .i64_2 = -12121212,
194 /* Description of the values. If you add a primitive type
195 you are expected to add a test here */
197 static const VMStateDescription vmstate_simple_primitive = {
198 .name = "simple/primitive",
199 .version_id = 1,
200 .minimum_version_id = 1,
201 .fields = (VMStateField[]) {
202 VMSTATE_BOOL(b_1, TestSimple),
203 VMSTATE_BOOL(b_2, TestSimple),
204 VMSTATE_UINT8(u8_1, TestSimple),
205 VMSTATE_UINT16(u16_1, TestSimple),
206 VMSTATE_UINT32(u32_1, TestSimple),
207 VMSTATE_UINT64(u64_1, TestSimple),
208 VMSTATE_INT8(i8_1, TestSimple),
209 VMSTATE_INT8(i8_2, TestSimple),
210 VMSTATE_INT16(i16_1, TestSimple),
211 VMSTATE_INT16(i16_2, TestSimple),
212 VMSTATE_INT32(i32_1, TestSimple),
213 VMSTATE_INT32(i32_2, TestSimple),
214 VMSTATE_INT64(i64_1, TestSimple),
215 VMSTATE_INT64(i64_2, TestSimple),
216 VMSTATE_END_OF_LIST()
220 /* It describes what goes through the wire. Our tests are basically:
222 * save test
223 - save a struct a vmstate to a file
224 - read that file back (binary read, no vmstate)
225 - compare it with what we expect to be on the wire
226 * load test
227 - save to the file what we expect to be on the wire
228 - read struct back with vmstate in a different
229 - compare back with the original struct
232 uint8_t wire_simple_primitive[] = {
233 /* b_1 */ 0x01,
234 /* b_2 */ 0x00,
235 /* u8_1 */ 0x82,
236 /* u16_1 */ 0x02, 0x00,
237 /* u32_1 */ 0x00, 0x01, 0x11, 0x70,
238 /* u64_1 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, 0xf4, 0x7c,
239 /* i8_1 */ 0x41,
240 /* i8_2 */ 0xbf,
241 /* i16_1 */ 0x02, 0x00,
242 /* i16_2 */ 0xfe, 0x0,
243 /* i32_1 */ 0x00, 0x01, 0x11, 0x70,
244 /* i32_2 */ 0xff, 0xfe, 0xee, 0x90,
245 /* i64_1 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, 0xf4, 0x7c,
246 /* i64_2 */ 0xff, 0xff, 0xff, 0xff, 0xff, 0x47, 0x0b, 0x84,
247 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
250 static void obj_simple_copy(void *target, void *source)
252 memcpy(target, source, sizeof(TestSimple));
255 static void test_simple_primitive(void)
257 TestSimple obj, obj_clone;
259 memset(&obj, 0, sizeof(obj));
260 save_vmstate(&vmstate_simple_primitive, &obj_simple);
262 compare_vmstate(wire_simple_primitive, sizeof(wire_simple_primitive));
264 SUCCESS(load_vmstate(&vmstate_simple_primitive, &obj, &obj_clone,
265 obj_simple_copy, 1, wire_simple_primitive,
266 sizeof(wire_simple_primitive)));
268 #define FIELD_EQUAL(name) g_assert_cmpint(obj.name, ==, obj_simple.name)
270 FIELD_EQUAL(b_1);
271 FIELD_EQUAL(b_2);
272 FIELD_EQUAL(u8_1);
273 FIELD_EQUAL(u16_1);
274 FIELD_EQUAL(u32_1);
275 FIELD_EQUAL(u64_1);
276 FIELD_EQUAL(i8_1);
277 FIELD_EQUAL(i8_2);
278 FIELD_EQUAL(i16_1);
279 FIELD_EQUAL(i16_2);
280 FIELD_EQUAL(i32_1);
281 FIELD_EQUAL(i32_2);
282 FIELD_EQUAL(i64_1);
283 FIELD_EQUAL(i64_2);
286 typedef struct TestStruct {
287 uint32_t a, b, c, e;
288 uint64_t d, f;
289 bool skip_c_e;
290 } TestStruct;
292 static const VMStateDescription vmstate_versioned = {
293 .name = "test/versioned",
294 .version_id = 2,
295 .minimum_version_id = 1,
296 .fields = (VMStateField[]) {
297 VMSTATE_UINT32(a, TestStruct),
298 VMSTATE_UINT32_V(b, TestStruct, 2), /* Versioned field in the middle, so
299 * we catch bugs more easily.
301 VMSTATE_UINT32(c, TestStruct),
302 VMSTATE_UINT64(d, TestStruct),
303 VMSTATE_UINT32_V(e, TestStruct, 2),
304 VMSTATE_UINT64_V(f, TestStruct, 2),
305 VMSTATE_END_OF_LIST()
309 static void test_load_v1(void)
311 uint8_t buf[] = {
312 0, 0, 0, 10, /* a */
313 0, 0, 0, 30, /* c */
314 0, 0, 0, 0, 0, 0, 0, 40, /* d */
315 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
317 save_buffer(buf, sizeof(buf));
319 QEMUFile *loading = open_test_file(false);
320 TestStruct obj = { .b = 200, .e = 500, .f = 600 };
321 vmstate_load_state(loading, &vmstate_versioned, &obj, 1);
322 g_assert(!qemu_file_get_error(loading));
323 g_assert_cmpint(obj.a, ==, 10);
324 g_assert_cmpint(obj.b, ==, 200);
325 g_assert_cmpint(obj.c, ==, 30);
326 g_assert_cmpint(obj.d, ==, 40);
327 g_assert_cmpint(obj.e, ==, 500);
328 g_assert_cmpint(obj.f, ==, 600);
329 qemu_fclose(loading);
332 static void test_load_v2(void)
334 uint8_t buf[] = {
335 0, 0, 0, 10, /* a */
336 0, 0, 0, 20, /* b */
337 0, 0, 0, 30, /* c */
338 0, 0, 0, 0, 0, 0, 0, 40, /* d */
339 0, 0, 0, 50, /* e */
340 0, 0, 0, 0, 0, 0, 0, 60, /* f */
341 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
343 save_buffer(buf, sizeof(buf));
345 QEMUFile *loading = open_test_file(false);
346 TestStruct obj;
347 vmstate_load_state(loading, &vmstate_versioned, &obj, 2);
348 g_assert_cmpint(obj.a, ==, 10);
349 g_assert_cmpint(obj.b, ==, 20);
350 g_assert_cmpint(obj.c, ==, 30);
351 g_assert_cmpint(obj.d, ==, 40);
352 g_assert_cmpint(obj.e, ==, 50);
353 g_assert_cmpint(obj.f, ==, 60);
354 qemu_fclose(loading);
357 static bool test_skip(void *opaque, int version_id)
359 TestStruct *t = (TestStruct *)opaque;
360 return !t->skip_c_e;
363 static const VMStateDescription vmstate_skipping = {
364 .name = "test/skip",
365 .version_id = 2,
366 .minimum_version_id = 1,
367 .fields = (VMStateField[]) {
368 VMSTATE_UINT32(a, TestStruct),
369 VMSTATE_UINT32(b, TestStruct),
370 VMSTATE_UINT32_TEST(c, TestStruct, test_skip),
371 VMSTATE_UINT64(d, TestStruct),
372 VMSTATE_UINT32_TEST(e, TestStruct, test_skip),
373 VMSTATE_UINT64_V(f, TestStruct, 2),
374 VMSTATE_END_OF_LIST()
379 static void test_save_noskip(void)
381 QEMUFile *fsave = open_test_file(true);
382 TestStruct obj = { .a = 1, .b = 2, .c = 3, .d = 4, .e = 5, .f = 6,
383 .skip_c_e = false };
384 vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL);
385 g_assert(!qemu_file_get_error(fsave));
387 uint8_t expected[] = {
388 0, 0, 0, 1, /* a */
389 0, 0, 0, 2, /* b */
390 0, 0, 0, 3, /* c */
391 0, 0, 0, 0, 0, 0, 0, 4, /* d */
392 0, 0, 0, 5, /* e */
393 0, 0, 0, 0, 0, 0, 0, 6, /* f */
396 qemu_fclose(fsave);
397 compare_vmstate(expected, sizeof(expected));
400 static void test_save_skip(void)
402 QEMUFile *fsave = open_test_file(true);
403 TestStruct obj = { .a = 1, .b = 2, .c = 3, .d = 4, .e = 5, .f = 6,
404 .skip_c_e = true };
405 vmstate_save_state(fsave, &vmstate_skipping, &obj, NULL);
406 g_assert(!qemu_file_get_error(fsave));
408 uint8_t expected[] = {
409 0, 0, 0, 1, /* a */
410 0, 0, 0, 2, /* b */
411 0, 0, 0, 0, 0, 0, 0, 4, /* d */
412 0, 0, 0, 0, 0, 0, 0, 6, /* f */
415 qemu_fclose(fsave);
416 compare_vmstate(expected, sizeof(expected));
419 static void test_load_noskip(void)
421 uint8_t buf[] = {
422 0, 0, 0, 10, /* a */
423 0, 0, 0, 20, /* b */
424 0, 0, 0, 30, /* c */
425 0, 0, 0, 0, 0, 0, 0, 40, /* d */
426 0, 0, 0, 50, /* e */
427 0, 0, 0, 0, 0, 0, 0, 60, /* f */
428 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
430 save_buffer(buf, sizeof(buf));
432 QEMUFile *loading = open_test_file(false);
433 TestStruct obj = { .skip_c_e = false };
434 vmstate_load_state(loading, &vmstate_skipping, &obj, 2);
435 g_assert(!qemu_file_get_error(loading));
436 g_assert_cmpint(obj.a, ==, 10);
437 g_assert_cmpint(obj.b, ==, 20);
438 g_assert_cmpint(obj.c, ==, 30);
439 g_assert_cmpint(obj.d, ==, 40);
440 g_assert_cmpint(obj.e, ==, 50);
441 g_assert_cmpint(obj.f, ==, 60);
442 qemu_fclose(loading);
445 static void test_load_skip(void)
447 uint8_t buf[] = {
448 0, 0, 0, 10, /* a */
449 0, 0, 0, 20, /* b */
450 0, 0, 0, 0, 0, 0, 0, 40, /* d */
451 0, 0, 0, 0, 0, 0, 0, 60, /* f */
452 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
454 save_buffer(buf, sizeof(buf));
456 QEMUFile *loading = open_test_file(false);
457 TestStruct obj = { .skip_c_e = true, .c = 300, .e = 500 };
458 vmstate_load_state(loading, &vmstate_skipping, &obj, 2);
459 g_assert(!qemu_file_get_error(loading));
460 g_assert_cmpint(obj.a, ==, 10);
461 g_assert_cmpint(obj.b, ==, 20);
462 g_assert_cmpint(obj.c, ==, 300);
463 g_assert_cmpint(obj.d, ==, 40);
464 g_assert_cmpint(obj.e, ==, 500);
465 g_assert_cmpint(obj.f, ==, 60);
466 qemu_fclose(loading);
469 typedef struct {
470 int32_t i;
471 } TestStructTriv;
473 const VMStateDescription vmsd_tst = {
474 .name = "test/tst",
475 .version_id = 1,
476 .minimum_version_id = 1,
477 .fields = (VMStateField[]) {
478 VMSTATE_INT32(i, TestStructTriv),
479 VMSTATE_END_OF_LIST()
483 /* test array migration */
485 #define AR_SIZE 4
487 typedef struct {
488 TestStructTriv *ar[AR_SIZE];
489 } TestArrayOfPtrToStuct;
491 const VMStateDescription vmsd_arps = {
492 .name = "test/arps",
493 .version_id = 1,
494 .minimum_version_id = 1,
495 .fields = (VMStateField[]) {
496 VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(ar, TestArrayOfPtrToStuct,
497 AR_SIZE, 0, vmsd_tst, TestStructTriv),
498 VMSTATE_END_OF_LIST()
502 static uint8_t wire_arr_ptr_no0[] = {
503 0x00, 0x00, 0x00, 0x00,
504 0x00, 0x00, 0x00, 0x01,
505 0x00, 0x00, 0x00, 0x02,
506 0x00, 0x00, 0x00, 0x03,
507 QEMU_VM_EOF
510 static void test_arr_ptr_str_no0_save(void)
512 TestStructTriv ar[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
513 TestArrayOfPtrToStuct sample = {.ar = {&ar[0], &ar[1], &ar[2], &ar[3]} };
515 save_vmstate(&vmsd_arps, &sample);
516 compare_vmstate(wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0));
519 static void test_arr_ptr_str_no0_load(void)
521 TestStructTriv ar_gt[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
522 TestStructTriv ar[AR_SIZE] = {};
523 TestArrayOfPtrToStuct obj = {.ar = {&ar[0], &ar[1], &ar[2], &ar[3]} };
524 int idx;
526 save_buffer(wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0));
527 SUCCESS(load_vmstate_one(&vmsd_arps, &obj, 1,
528 wire_arr_ptr_no0, sizeof(wire_arr_ptr_no0)));
529 for (idx = 0; idx < AR_SIZE; ++idx) {
530 /* compare the target array ar with the ground truth array ar_gt */
531 g_assert_cmpint(ar_gt[idx].i, ==, ar[idx].i);
535 static uint8_t wire_arr_ptr_0[] = {
536 0x00, 0x00, 0x00, 0x00,
537 VMS_NULLPTR_MARKER,
538 0x00, 0x00, 0x00, 0x02,
539 0x00, 0x00, 0x00, 0x03,
540 QEMU_VM_EOF
543 static void test_arr_ptr_str_0_save(void)
545 TestStructTriv ar[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
546 TestArrayOfPtrToStuct sample = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
548 save_vmstate(&vmsd_arps, &sample);
549 compare_vmstate(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
552 static void test_arr_ptr_str_0_load(void)
554 TestStructTriv ar_gt[AR_SIZE] = {{.i = 0}, {.i = 0}, {.i = 2}, {.i = 3} };
555 TestStructTriv ar[AR_SIZE] = {};
556 TestArrayOfPtrToStuct obj = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
557 int idx;
559 save_buffer(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
560 SUCCESS(load_vmstate_one(&vmsd_arps, &obj, 1,
561 wire_arr_ptr_0, sizeof(wire_arr_ptr_0)));
562 for (idx = 0; idx < AR_SIZE; ++idx) {
563 /* compare the target array ar with the ground truth array ar_gt */
564 g_assert_cmpint(ar_gt[idx].i, ==, ar[idx].i);
566 for (idx = 0; idx < AR_SIZE; ++idx) {
567 if (idx == 1) {
568 g_assert_cmpint((uintptr_t)(obj.ar[idx]), ==, 0);
569 } else {
570 g_assert_cmpint((uintptr_t)(obj.ar[idx]), !=, 0);
575 typedef struct TestArrayOfPtrToInt {
576 int32_t *ar[AR_SIZE];
577 } TestArrayOfPtrToInt;
579 const VMStateDescription vmsd_arpp = {
580 .name = "test/arps",
581 .version_id = 1,
582 .minimum_version_id = 1,
583 .fields = (VMStateField[]) {
584 VMSTATE_ARRAY_OF_POINTER(ar, TestArrayOfPtrToInt,
585 AR_SIZE, 0, vmstate_info_int32, int32_t*),
586 VMSTATE_END_OF_LIST()
590 static void test_arr_ptr_prim_0_save(void)
592 int32_t ar[AR_SIZE] = {0 , 1, 2, 3};
593 TestArrayOfPtrToInt sample = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
595 save_vmstate(&vmsd_arpp, &sample);
596 compare_vmstate(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
599 static void test_arr_ptr_prim_0_load(void)
601 int32_t ar_gt[AR_SIZE] = {0, 1, 2, 3};
602 int32_t ar[AR_SIZE] = {3 , 42, 1, 0};
603 TestArrayOfPtrToInt obj = {.ar = {&ar[0], NULL, &ar[2], &ar[3]} };
604 int idx;
606 save_buffer(wire_arr_ptr_0, sizeof(wire_arr_ptr_0));
607 SUCCESS(load_vmstate_one(&vmsd_arpp, &obj, 1,
608 wire_arr_ptr_0, sizeof(wire_arr_ptr_0)));
609 for (idx = 0; idx < AR_SIZE; ++idx) {
610 /* compare the target array ar with the ground truth array ar_gt */
611 if (idx == 1) {
612 g_assert_cmpint(42, ==, ar[idx]);
613 } else {
614 g_assert_cmpint(ar_gt[idx], ==, ar[idx]);
619 /* test QTAILQ migration */
620 typedef struct TestQtailqElement TestQtailqElement;
622 struct TestQtailqElement {
623 bool b;
624 uint8_t u8;
625 QTAILQ_ENTRY(TestQtailqElement) next;
628 typedef struct TestQtailq {
629 int16_t i16;
630 QTAILQ_HEAD(TestQtailqHead, TestQtailqElement) q;
631 int32_t i32;
632 } TestQtailq;
634 static const VMStateDescription vmstate_q_element = {
635 .name = "test/queue-element",
636 .version_id = 1,
637 .minimum_version_id = 1,
638 .fields = (VMStateField[]) {
639 VMSTATE_BOOL(b, TestQtailqElement),
640 VMSTATE_UINT8(u8, TestQtailqElement),
641 VMSTATE_END_OF_LIST()
645 static const VMStateDescription vmstate_q = {
646 .name = "test/queue",
647 .version_id = 1,
648 .minimum_version_id = 1,
649 .fields = (VMStateField[]) {
650 VMSTATE_INT16(i16, TestQtailq),
651 VMSTATE_QTAILQ_V(q, TestQtailq, 1, vmstate_q_element, TestQtailqElement,
652 next),
653 VMSTATE_INT32(i32, TestQtailq),
654 VMSTATE_END_OF_LIST()
658 uint8_t wire_q[] = {
659 /* i16 */ 0xfe, 0x0,
660 /* start of element 0 of q */ 0x01,
661 /* .b */ 0x01,
662 /* .u8 */ 0x82,
663 /* start of element 1 of q */ 0x01,
664 /* b */ 0x00,
665 /* u8 */ 0x41,
666 /* end of q */ 0x00,
667 /* i32 */ 0x00, 0x01, 0x11, 0x70,
668 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
671 static void test_save_q(void)
673 TestQtailq obj_q = {
674 .i16 = -512,
675 .i32 = 70000,
678 TestQtailqElement obj_qe1 = {
679 .b = true,
680 .u8 = 130,
683 TestQtailqElement obj_qe2 = {
684 .b = false,
685 .u8 = 65,
688 QTAILQ_INIT(&obj_q.q);
689 QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe1, next);
690 QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe2, next);
692 save_vmstate(&vmstate_q, &obj_q);
693 compare_vmstate(wire_q, sizeof(wire_q));
696 static void test_load_q(void)
698 TestQtailq obj_q = {
699 .i16 = -512,
700 .i32 = 70000,
703 TestQtailqElement obj_qe1 = {
704 .b = true,
705 .u8 = 130,
708 TestQtailqElement obj_qe2 = {
709 .b = false,
710 .u8 = 65,
713 QTAILQ_INIT(&obj_q.q);
714 QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe1, next);
715 QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe2, next);
717 QEMUFile *fsave = open_test_file(true);
719 qemu_put_buffer(fsave, wire_q, sizeof(wire_q));
720 g_assert(!qemu_file_get_error(fsave));
721 qemu_fclose(fsave);
723 QEMUFile *fload = open_test_file(false);
724 TestQtailq tgt;
726 QTAILQ_INIT(&tgt.q);
727 vmstate_load_state(fload, &vmstate_q, &tgt, 1);
728 char eof = qemu_get_byte(fload);
729 g_assert(!qemu_file_get_error(fload));
730 g_assert_cmpint(tgt.i16, ==, obj_q.i16);
731 g_assert_cmpint(tgt.i32, ==, obj_q.i32);
732 g_assert_cmpint(eof, ==, QEMU_VM_EOF);
734 TestQtailqElement *qele_from = QTAILQ_FIRST(&obj_q.q);
735 TestQtailqElement *qlast_from = QTAILQ_LAST(&obj_q.q, TestQtailqHead);
736 TestQtailqElement *qele_to = QTAILQ_FIRST(&tgt.q);
737 TestQtailqElement *qlast_to = QTAILQ_LAST(&tgt.q, TestQtailqHead);
739 while (1) {
740 g_assert_cmpint(qele_to->b, ==, qele_from->b);
741 g_assert_cmpint(qele_to->u8, ==, qele_from->u8);
742 if ((qele_from == qlast_from) || (qele_to == qlast_to)) {
743 break;
745 qele_from = QTAILQ_NEXT(qele_from, next);
746 qele_to = QTAILQ_NEXT(qele_to, next);
749 g_assert_cmpint((uintptr_t) qele_from, ==, (uintptr_t) qlast_from);
750 g_assert_cmpint((uintptr_t) qele_to, ==, (uintptr_t) qlast_to);
752 /* clean up */
753 TestQtailqElement *qele;
754 while (!QTAILQ_EMPTY(&tgt.q)) {
755 qele = QTAILQ_LAST(&tgt.q, TestQtailqHead);
756 QTAILQ_REMOVE(&tgt.q, qele, next);
757 free(qele);
758 qele = NULL;
760 qemu_fclose(fload);
763 typedef struct TmpTestStruct {
764 TestStruct *parent;
765 int64_t diff;
766 } TmpTestStruct;
768 static void tmp_child_pre_save(void *opaque)
770 struct TmpTestStruct *tts = opaque;
772 tts->diff = tts->parent->b - tts->parent->a;
775 static int tmp_child_post_load(void *opaque, int version_id)
777 struct TmpTestStruct *tts = opaque;
779 tts->parent->b = tts->parent->a + tts->diff;
781 return 0;
784 static const VMStateDescription vmstate_tmp_back_to_parent = {
785 .name = "test/tmp_child_parent",
786 .fields = (VMStateField[]) {
787 VMSTATE_UINT64(f, TestStruct),
788 VMSTATE_END_OF_LIST()
792 static const VMStateDescription vmstate_tmp_child = {
793 .name = "test/tmp_child",
794 .pre_save = tmp_child_pre_save,
795 .post_load = tmp_child_post_load,
796 .fields = (VMStateField[]) {
797 VMSTATE_INT64(diff, TmpTestStruct),
798 VMSTATE_STRUCT_POINTER(parent, TmpTestStruct,
799 vmstate_tmp_back_to_parent, TestStruct),
800 VMSTATE_END_OF_LIST()
804 static const VMStateDescription vmstate_with_tmp = {
805 .name = "test/with_tmp",
806 .version_id = 1,
807 .fields = (VMStateField[]) {
808 VMSTATE_UINT32(a, TestStruct),
809 VMSTATE_UINT64(d, TestStruct),
810 VMSTATE_WITH_TMP(TestStruct, TmpTestStruct, vmstate_tmp_child),
811 VMSTATE_END_OF_LIST()
815 static void obj_tmp_copy(void *target, void *source)
817 memcpy(target, source, sizeof(TestStruct));
820 static void test_tmp_struct(void)
822 TestStruct obj, obj_clone;
824 uint8_t const wire_with_tmp[] = {
825 /* u32 a */ 0x00, 0x00, 0x00, 0x02,
826 /* u64 d */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
827 /* diff */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
828 /* u64 f */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,
829 QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
832 memset(&obj, 0, sizeof(obj));
833 obj.a = 2;
834 obj.b = 4;
835 obj.d = 1;
836 obj.f = 8;
837 save_vmstate(&vmstate_with_tmp, &obj);
839 compare_vmstate(wire_with_tmp, sizeof(wire_with_tmp));
841 memset(&obj, 0, sizeof(obj));
842 SUCCESS(load_vmstate(&vmstate_with_tmp, &obj, &obj_clone,
843 obj_tmp_copy, 1, wire_with_tmp,
844 sizeof(wire_with_tmp)));
845 g_assert_cmpint(obj.a, ==, 2); /* From top level vmsd */
846 g_assert_cmpint(obj.b, ==, 4); /* from the post_load */
847 g_assert_cmpint(obj.d, ==, 1); /* From top level vmsd */
848 g_assert_cmpint(obj.f, ==, 8); /* From the child->parent */
851 int main(int argc, char **argv)
853 temp_fd = mkstemp(temp_file);
855 module_call_init(MODULE_INIT_QOM);
857 g_test_init(&argc, &argv, NULL);
858 g_test_add_func("/vmstate/simple/primitive", test_simple_primitive);
859 g_test_add_func("/vmstate/versioned/load/v1", test_load_v1);
860 g_test_add_func("/vmstate/versioned/load/v2", test_load_v2);
861 g_test_add_func("/vmstate/field_exists/load/noskip", test_load_noskip);
862 g_test_add_func("/vmstate/field_exists/load/skip", test_load_skip);
863 g_test_add_func("/vmstate/field_exists/save/noskip", test_save_noskip);
864 g_test_add_func("/vmstate/field_exists/save/skip", test_save_skip);
865 g_test_add_func("/vmstate/array/ptr/str/no0/save",
866 test_arr_ptr_str_no0_save);
867 g_test_add_func("/vmstate/array/ptr/str/no0/load",
868 test_arr_ptr_str_no0_load);
869 g_test_add_func("/vmstate/array/ptr/str/0/save", test_arr_ptr_str_0_save);
870 g_test_add_func("/vmstate/array/ptr/str/0/load",
871 test_arr_ptr_str_0_load);
872 g_test_add_func("/vmstate/array/ptr/prim/0/save",
873 test_arr_ptr_prim_0_save);
874 g_test_add_func("/vmstate/array/ptr/prim/0/load",
875 test_arr_ptr_prim_0_load);
876 g_test_add_func("/vmstate/qtailq/save/saveq", test_save_q);
877 g_test_add_func("/vmstate/qtailq/load/loadq", test_load_q);
878 g_test_add_func("/vmstate/tmp_struct", test_tmp_struct);
879 g_test_run();
881 close(temp_fd);
882 unlink(temp_file);
884 return 0;