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Commit | Line | Data |
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ea0c6d62 | 1 | /* |
2656bfd9 | 2 | * QTest testcase for migration |
ea0c6d62 | 3 | * |
17ca7746 | 4 | * Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates |
ea0c6d62 DDAG |
5 | * based on the vhost-user-test.c that is: |
6 | * Copyright (c) 2014 Virtual Open Systems Sarl. | |
7 | * | |
8 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
9 | * See the COPYING file in the top-level directory. | |
10 | * | |
11 | */ | |
12 | ||
13 | #include "qemu/osdep.h" | |
ea0c6d62 DDAG |
14 | |
15 | #include "libqtest.h" | |
452fcdbc | 16 | #include "qapi/qmp/qdict.h" |
b5bbd3f3 | 17 | #include "qapi/qmp/qjson.h" |
ea0c6d62 DDAG |
18 | #include "qemu/option.h" |
19 | #include "qemu/range.h" | |
a9c94277 | 20 | #include "qemu/sockets.h" |
8228e353 | 21 | #include "chardev/char.h" |
ea0c6d62 DDAG |
22 | #include "sysemu/sysemu.h" |
23 | ||
055a1efc MA |
24 | /* TODO actually test the results and get rid of this */ |
25 | #define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS__)) | |
26 | ||
ea0c6d62 DDAG |
27 | const unsigned start_address = 1024 * 1024; |
28 | const unsigned end_address = 100 * 1024 * 1024; | |
29 | bool got_stop; | |
346f3dab | 30 | static bool uffd_feature_thread_id; |
ea0c6d62 DDAG |
31 | |
32 | #if defined(__linux__) | |
ea0c6d62 DDAG |
33 | #include <sys/syscall.h> |
34 | #include <sys/vfs.h> | |
35 | #endif | |
36 | ||
37 | #if defined(__linux__) && defined(__NR_userfaultfd) && defined(CONFIG_EVENTFD) | |
38 | #include <sys/eventfd.h> | |
39 | #include <sys/ioctl.h> | |
40 | #include <linux/userfaultfd.h> | |
41 | ||
42 | static bool ufd_version_check(void) | |
43 | { | |
44 | struct uffdio_api api_struct; | |
45 | uint64_t ioctl_mask; | |
46 | ||
e1ae9fb6 | 47 | int ufd = syscall(__NR_userfaultfd, O_CLOEXEC); |
ea0c6d62 DDAG |
48 | |
49 | if (ufd == -1) { | |
50 | g_test_message("Skipping test: userfaultfd not available"); | |
51 | return false; | |
52 | } | |
53 | ||
54 | api_struct.api = UFFD_API; | |
55 | api_struct.features = 0; | |
56 | if (ioctl(ufd, UFFDIO_API, &api_struct)) { | |
57 | g_test_message("Skipping test: UFFDIO_API failed"); | |
58 | return false; | |
59 | } | |
346f3dab | 60 | uffd_feature_thread_id = api_struct.features & UFFD_FEATURE_THREAD_ID; |
ea0c6d62 DDAG |
61 | |
62 | ioctl_mask = (__u64)1 << _UFFDIO_REGISTER | | |
63 | (__u64)1 << _UFFDIO_UNREGISTER; | |
64 | if ((api_struct.ioctls & ioctl_mask) != ioctl_mask) { | |
65 | g_test_message("Skipping test: Missing userfault feature"); | |
66 | return false; | |
67 | } | |
68 | ||
69 | return true; | |
70 | } | |
71 | ||
72 | #else | |
73 | static bool ufd_version_check(void) | |
74 | { | |
75 | g_test_message("Skipping test: Userfault not available (builtdtime)"); | |
76 | return false; | |
77 | } | |
78 | ||
79 | #endif | |
80 | ||
81 | static const char *tmpfs; | |
82 | ||
83 | /* A simple PC boot sector that modifies memory (1-100MB) quickly | |
17ca7746 | 84 | * outputting a 'B' every so often if it's still running. |
ea0c6d62 | 85 | */ |
d54927ef | 86 | #include "tests/migration/i386/a-b-bootblock.h" |
ea0c6d62 | 87 | |
aaf89c8a | 88 | static void init_bootfile_x86(const char *bootpath) |
89 | { | |
90 | FILE *bootfile = fopen(bootpath, "wb"); | |
91 | ||
17ca7746 | 92 | g_assert_cmpint(fwrite(x86_bootsect, 512, 1, bootfile), ==, 1); |
aaf89c8a | 93 | fclose(bootfile); |
94 | } | |
95 | ||
ea0c6d62 DDAG |
96 | /* |
97 | * Wait for some output in the serial output file, | |
98 | * we get an 'A' followed by an endless string of 'B's | |
99 | * but on the destination we won't have the A. | |
100 | */ | |
101 | static void wait_for_serial(const char *side) | |
102 | { | |
103 | char *serialpath = g_strdup_printf("%s/%s", tmpfs, side); | |
104 | FILE *serialfile = fopen(serialpath, "r"); | |
aaf89c8a | 105 | const char *arch = qtest_get_arch(); |
106 | int started = (strcmp(side, "src_serial") == 0 && | |
107 | strcmp(arch, "ppc64") == 0) ? 0 : 1; | |
ea0c6d62 | 108 | |
e2dd21e5 | 109 | g_free(serialpath); |
ea0c6d62 DDAG |
110 | do { |
111 | int readvalue = fgetc(serialfile); | |
112 | ||
aaf89c8a | 113 | if (!started) { |
114 | /* SLOF prints its banner before starting test, | |
115 | * to ignore it, mark the start of the test with '_', | |
116 | * ignore all characters until this marker | |
117 | */ | |
118 | switch (readvalue) { | |
119 | case '_': | |
120 | started = 1; | |
121 | break; | |
122 | case EOF: | |
123 | fseek(serialfile, 0, SEEK_SET); | |
124 | usleep(1000); | |
125 | break; | |
126 | } | |
127 | continue; | |
128 | } | |
ea0c6d62 DDAG |
129 | switch (readvalue) { |
130 | case 'A': | |
131 | /* Fine */ | |
132 | break; | |
133 | ||
134 | case 'B': | |
135 | /* It's alive! */ | |
136 | fclose(serialfile); | |
ea0c6d62 DDAG |
137 | return; |
138 | ||
139 | case EOF: | |
aaf89c8a | 140 | started = (strcmp(side, "src_serial") == 0 && |
141 | strcmp(arch, "ppc64") == 0) ? 0 : 1; | |
ea0c6d62 DDAG |
142 | fseek(serialfile, 0, SEEK_SET); |
143 | usleep(1000); | |
144 | break; | |
145 | ||
146 | default: | |
147 | fprintf(stderr, "Unexpected %d on %s serial\n", readvalue, side); | |
148 | g_assert_not_reached(); | |
149 | } | |
150 | } while (true); | |
151 | } | |
152 | ||
3cd46d42 MA |
153 | static void stop_cb(void *opaque, const char *name, QDict *data) |
154 | { | |
155 | if (!strcmp(name, "STOP")) { | |
156 | got_stop = true; | |
157 | } | |
158 | } | |
159 | ||
ea0c6d62 DDAG |
160 | /* |
161 | * Events can get in the way of responses we are actually waiting for. | |
162 | */ | |
b7281c69 | 163 | GCC_FMT_ATTR(2, 3) |
4399596b | 164 | static QDict *wait_command(QTestState *who, const char *command, ...) |
ea0c6d62 | 165 | { |
4399596b MA |
166 | va_list ap; |
167 | ||
168 | va_start(ap, command); | |
169 | qtest_qmp_vsend(who, command, ap); | |
170 | va_end(ap); | |
171 | ||
3cd46d42 | 172 | return qtest_qmp_receive_success(who, stop_cb, NULL); |
ea0c6d62 DDAG |
173 | } |
174 | ||
2f7074c6 PX |
175 | /* |
176 | * Note: caller is responsible to free the returned object via | |
177 | * qobject_unref() after use | |
178 | */ | |
179 | static QDict *migrate_query(QTestState *who) | |
180 | { | |
e1454165 | 181 | return wait_command(who, "{ 'execute': 'query-migrate' }"); |
2f7074c6 PX |
182 | } |
183 | ||
184 | /* | |
185 | * Note: caller is responsible to free the returned object via | |
186 | * g_free() after use | |
187 | */ | |
188 | static gchar *migrate_query_status(QTestState *who) | |
189 | { | |
190 | QDict *rsp_return = migrate_query(who); | |
191 | gchar *status = g_strdup(qdict_get_str(rsp_return, "status")); | |
192 | ||
193 | g_assert(status); | |
194 | qobject_unref(rsp_return); | |
195 | ||
196 | return status; | |
197 | } | |
ea0c6d62 DDAG |
198 | |
199 | /* | |
200 | * It's tricky to use qemu's migration event capability with qtest, | |
201 | * events suddenly appearing confuse the qmp()/hmp() responses. | |
ea0c6d62 DDAG |
202 | */ |
203 | ||
863e27a8 | 204 | static uint64_t get_migration_pass(QTestState *who) |
ea0c6d62 | 205 | { |
2f7074c6 | 206 | QDict *rsp_return, *rsp_ram; |
ea0c6d62 DDAG |
207 | uint64_t result; |
208 | ||
2f7074c6 | 209 | rsp_return = migrate_query(who); |
ea0c6d62 DDAG |
210 | if (!qdict_haskey(rsp_return, "ram")) { |
211 | /* Still in setup */ | |
212 | result = 0; | |
213 | } else { | |
214 | rsp_ram = qdict_get_qdict(rsp_return, "ram"); | |
215 | result = qdict_get_try_int(rsp_ram, "dirty-sync-count", 0); | |
ea0c6d62 | 216 | } |
2f7074c6 | 217 | qobject_unref(rsp_return); |
ea0c6d62 DDAG |
218 | return result; |
219 | } | |
220 | ||
346f3dab AP |
221 | static void read_blocktime(QTestState *who) |
222 | { | |
2f7074c6 | 223 | QDict *rsp_return; |
346f3dab | 224 | |
2f7074c6 | 225 | rsp_return = migrate_query(who); |
346f3dab | 226 | g_assert(qdict_haskey(rsp_return, "postcopy-blocktime")); |
2f7074c6 | 227 | qobject_unref(rsp_return); |
346f3dab AP |
228 | } |
229 | ||
2f6d3138 PX |
230 | static void wait_for_migration_status(QTestState *who, |
231 | const char *goal) | |
ea0c6d62 | 232 | { |
6a7724e9 | 233 | while (true) { |
6a7724e9 | 234 | bool completed; |
2f7074c6 | 235 | char *status; |
ea0c6d62 | 236 | |
2f7074c6 | 237 | status = migrate_query_status(who); |
2f6d3138 | 238 | completed = strcmp(status, goal) == 0; |
ea0c6d62 | 239 | g_assert_cmpstr(status, !=, "failed"); |
2f7074c6 | 240 | g_free(status); |
6a7724e9 JQ |
241 | if (completed) { |
242 | return; | |
243 | } | |
244 | usleep(1000); | |
245 | } | |
ea0c6d62 DDAG |
246 | } |
247 | ||
2f6d3138 PX |
248 | static void wait_for_migration_complete(QTestState *who) |
249 | { | |
250 | wait_for_migration_status(who, "completed"); | |
251 | } | |
252 | ||
863e27a8 | 253 | static void wait_for_migration_pass(QTestState *who) |
ea0c6d62 | 254 | { |
863e27a8 | 255 | uint64_t initial_pass = get_migration_pass(who); |
ea0c6d62 DDAG |
256 | uint64_t pass; |
257 | ||
258 | /* Wait for the 1st sync */ | |
6a7724e9 JQ |
259 | while (!got_stop && !initial_pass) { |
260 | usleep(1000); | |
863e27a8 | 261 | initial_pass = get_migration_pass(who); |
6a7724e9 | 262 | } |
ea0c6d62 DDAG |
263 | |
264 | do { | |
6a7724e9 | 265 | usleep(1000); |
863e27a8 | 266 | pass = get_migration_pass(who); |
ea0c6d62 DDAG |
267 | } while (pass == initial_pass && !got_stop); |
268 | } | |
269 | ||
7195a871 | 270 | static void check_guests_ram(QTestState *who) |
ea0c6d62 DDAG |
271 | { |
272 | /* Our ASM test will have been incrementing one byte from each page from | |
273 | * 1MB to <100MB in order. | |
274 | * This gives us a constraint that any page's byte should be equal or less | |
275 | * than the previous pages byte (mod 256); and they should all be equal | |
276 | * except for one transition at the point where we meet the incrementer. | |
277 | * (We're running this with the guest stopped). | |
278 | */ | |
279 | unsigned address; | |
280 | uint8_t first_byte; | |
281 | uint8_t last_byte; | |
282 | bool hit_edge = false; | |
283 | bool bad = false; | |
284 | ||
7195a871 | 285 | qtest_memread(who, start_address, &first_byte, 1); |
ea0c6d62 DDAG |
286 | last_byte = first_byte; |
287 | ||
288 | for (address = start_address + 4096; address < end_address; address += 4096) | |
289 | { | |
290 | uint8_t b; | |
7195a871 | 291 | qtest_memread(who, address, &b, 1); |
ea0c6d62 DDAG |
292 | if (b != last_byte) { |
293 | if (((b + 1) % 256) == last_byte && !hit_edge) { | |
294 | /* This is OK, the guest stopped at the point of | |
295 | * incrementing the previous page but didn't get | |
296 | * to us yet. | |
297 | */ | |
298 | hit_edge = true; | |
829db8b4 | 299 | last_byte = b; |
ea0c6d62 DDAG |
300 | } else { |
301 | fprintf(stderr, "Memory content inconsistency at %x" | |
302 | " first_byte = %x last_byte = %x current = %x" | |
303 | " hit_edge = %x\n", | |
304 | address, first_byte, last_byte, b, hit_edge); | |
305 | bad = true; | |
306 | } | |
307 | } | |
ea0c6d62 DDAG |
308 | } |
309 | g_assert_false(bad); | |
310 | } | |
311 | ||
312 | static void cleanup(const char *filename) | |
313 | { | |
314 | char *path = g_strdup_printf("%s/%s", tmpfs, filename); | |
315 | ||
316 | unlink(path); | |
e2dd21e5 | 317 | g_free(path); |
ea0c6d62 DDAG |
318 | } |
319 | ||
56b4a42a | 320 | static void migrate_check_parameter(QTestState *who, const char *parameter, |
c44a56d8 | 321 | long long value) |
56b4a42a | 322 | { |
e1454165 | 323 | QDict *rsp_return; |
56b4a42a | 324 | |
e1454165 MA |
325 | rsp_return = wait_command(who, |
326 | "{ 'execute': 'query-migrate-parameters' }"); | |
c44a56d8 | 327 | g_assert_cmpint(qdict_get_int(rsp_return, parameter), ==, value); |
e1454165 | 328 | qobject_unref(rsp_return); |
56b4a42a JQ |
329 | } |
330 | ||
1f90d797 | 331 | static void migrate_set_parameter(QTestState *who, const char *parameter, |
c44a56d8 | 332 | long long value) |
d62fbe60 JQ |
333 | { |
334 | QDict *rsp; | |
d62fbe60 | 335 | |
c44a56d8 MA |
336 | rsp = qtest_qmp(who, |
337 | "{ 'execute': 'migrate-set-parameters'," | |
338 | "'arguments': { %s: %lld } }", | |
339 | parameter, value); | |
d62fbe60 | 340 | g_assert(qdict_haskey(rsp, "return")); |
cb3e7f08 | 341 | qobject_unref(rsp); |
1f90d797 | 342 | migrate_check_parameter(who, parameter, value); |
d62fbe60 JQ |
343 | } |
344 | ||
d5f49640 PX |
345 | static void migrate_pause(QTestState *who) |
346 | { | |
347 | QDict *rsp; | |
348 | ||
349 | rsp = wait_command(who, "{ 'execute': 'migrate-pause' }"); | |
d5f49640 PX |
350 | qobject_unref(rsp); |
351 | } | |
352 | ||
353 | static void migrate_recover(QTestState *who, const char *uri) | |
354 | { | |
355 | QDict *rsp; | |
d5f49640 | 356 | |
b7281c69 MA |
357 | rsp = wait_command(who, |
358 | "{ 'execute': 'migrate-recover', " | |
359 | " 'id': 'recover-cmd', " | |
360 | " 'arguments': { 'uri': %s } }", | |
361 | uri); | |
d5f49640 PX |
362 | qobject_unref(rsp); |
363 | } | |
364 | ||
d62fbe60 | 365 | static void migrate_set_capability(QTestState *who, const char *capability, |
c44a56d8 | 366 | bool value) |
d62fbe60 JQ |
367 | { |
368 | QDict *rsp; | |
c44a56d8 MA |
369 | |
370 | rsp = qtest_qmp(who, | |
371 | "{ 'execute': 'migrate-set-capabilities'," | |
372 | "'arguments': { " | |
373 | "'capabilities': [ { " | |
374 | "'capability': %s, 'state': %i } ] } }", | |
375 | capability, value); | |
d62fbe60 | 376 | g_assert(qdict_haskey(rsp, "return")); |
cb3e7f08 | 377 | qobject_unref(rsp); |
d62fbe60 JQ |
378 | } |
379 | ||
b5bbd3f3 MA |
380 | /* |
381 | * Send QMP command "migrate". | |
382 | * Arguments are built from @fmt... (formatted like | |
383 | * qobject_from_jsonf_nofail()) with "uri": @uri spliced in. | |
384 | */ | |
385 | GCC_FMT_ATTR(3, 4) | |
386 | static void migrate(QTestState *who, const char *uri, const char *fmt, ...) | |
d62fbe60 | 387 | { |
b5bbd3f3 MA |
388 | va_list ap; |
389 | QDict *args, *rsp; | |
d62fbe60 | 390 | |
b5bbd3f3 MA |
391 | va_start(ap, fmt); |
392 | args = qdict_from_vjsonf_nofail(fmt, ap); | |
393 | va_end(ap); | |
394 | ||
395 | g_assert(!qdict_haskey(args, "uri")); | |
396 | qdict_put_str(args, "uri", uri); | |
397 | ||
398 | rsp = qmp("{ 'execute': 'migrate', 'arguments': %p}", args); | |
d62fbe60 | 399 | g_assert(qdict_haskey(rsp, "return")); |
cb3e7f08 | 400 | qobject_unref(rsp); |
d62fbe60 JQ |
401 | } |
402 | ||
d131662a | 403 | static void migrate_postcopy_start(QTestState *from, QTestState *to) |
eb665d7d JQ |
404 | { |
405 | QDict *rsp; | |
406 | ||
d131662a | 407 | rsp = wait_command(from, "{ 'execute': 'migrate-start-postcopy' }"); |
cb3e7f08 | 408 | qobject_unref(rsp); |
d131662a PX |
409 | |
410 | if (!got_stop) { | |
411 | qtest_qmp_eventwait(from, "STOP"); | |
412 | } | |
413 | ||
414 | qtest_qmp_eventwait(to, "RESUME"); | |
eb665d7d JQ |
415 | } |
416 | ||
5fd4a9c9 | 417 | static int test_migrate_start(QTestState **from, QTestState **to, |
f96d6651 | 418 | const char *uri, bool hide_stderr) |
ea0c6d62 | 419 | { |
d62fbe60 | 420 | gchar *cmd_src, *cmd_dst; |
ea0c6d62 | 421 | char *bootpath = g_strdup_printf("%s/bootsect", tmpfs); |
aaf89c8a | 422 | const char *arch = qtest_get_arch(); |
63b2d935 | 423 | const char *accel = "kvm:tcg"; |
ea0c6d62 DDAG |
424 | |
425 | got_stop = false; | |
ea0c6d62 | 426 | |
aaf89c8a | 427 | if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { |
428 | init_bootfile_x86(bootpath); | |
63b2d935 | 429 | cmd_src = g_strdup_printf("-machine accel=%s -m 150M" |
31a6bb74 | 430 | " -name source,debug-threads=on" |
aaf89c8a | 431 | " -serial file:%s/src_serial" |
432 | " -drive file=%s,format=raw", | |
63b2d935 JQ |
433 | accel, tmpfs, bootpath); |
434 | cmd_dst = g_strdup_printf("-machine accel=%s -m 150M" | |
31a6bb74 | 435 | " -name target,debug-threads=on" |
aaf89c8a | 436 | " -serial file:%s/dest_serial" |
437 | " -drive file=%s,format=raw" | |
438 | " -incoming %s", | |
63b2d935 | 439 | accel, tmpfs, bootpath, uri); |
aaf89c8a | 440 | } else if (strcmp(arch, "ppc64") == 0) { |
171da9d5 | 441 | cmd_src = g_strdup_printf("-machine accel=%s -m 256M" |
31a6bb74 | 442 | " -name source,debug-threads=on" |
aaf89c8a | 443 | " -serial file:%s/src_serial" |
cdf33815 JQ |
444 | " -prom-env '" |
445 | "boot-command=hex .\" _\" begin %x %x " | |
446 | "do i c@ 1 + i c! 1000 +loop .\" B\" 0 " | |
447 | "until'", accel, tmpfs, end_address, | |
448 | start_address); | |
171da9d5 | 449 | cmd_dst = g_strdup_printf("-machine accel=%s -m 256M" |
31a6bb74 | 450 | " -name target,debug-threads=on" |
aaf89c8a | 451 | " -serial file:%s/dest_serial" |
452 | " -incoming %s", | |
171da9d5 | 453 | accel, tmpfs, uri); |
aaf89c8a | 454 | } else { |
455 | g_assert_not_reached(); | |
456 | } | |
457 | ||
e2dd21e5 MAL |
458 | g_free(bootpath); |
459 | ||
f96d6651 DDAG |
460 | if (hide_stderr) { |
461 | gchar *tmp; | |
462 | tmp = g_strdup_printf("%s 2>/dev/null", cmd_src); | |
463 | g_free(cmd_src); | |
464 | cmd_src = tmp; | |
465 | ||
466 | tmp = g_strdup_printf("%s 2>/dev/null", cmd_dst); | |
467 | g_free(cmd_dst); | |
468 | cmd_dst = tmp; | |
469 | } | |
470 | ||
7195a871 | 471 | *from = qtest_start(cmd_src); |
aaf89c8a | 472 | g_free(cmd_src); |
473 | ||
7195a871 | 474 | *to = qtest_init(cmd_dst); |
aaf89c8a | 475 | g_free(cmd_dst); |
5fd4a9c9 | 476 | return 0; |
7195a871 JQ |
477 | } |
478 | ||
2c9bb297 | 479 | static void test_migrate_end(QTestState *from, QTestState *to, bool test_dest) |
7195a871 JQ |
480 | { |
481 | unsigned char dest_byte_a, dest_byte_b, dest_byte_c, dest_byte_d; | |
482 | ||
483 | qtest_quit(from); | |
484 | ||
2c9bb297 DDAG |
485 | if (test_dest) { |
486 | qtest_memread(to, start_address, &dest_byte_a, 1); | |
7195a871 | 487 | |
2c9bb297 DDAG |
488 | /* Destination still running, wait for a byte to change */ |
489 | do { | |
490 | qtest_memread(to, start_address, &dest_byte_b, 1); | |
491 | usleep(1000 * 10); | |
492 | } while (dest_byte_a == dest_byte_b); | |
493 | ||
494 | qtest_qmp_discard_response(to, "{ 'execute' : 'stop'}"); | |
7195a871 | 495 | |
2c9bb297 DDAG |
496 | /* With it stopped, check nothing changes */ |
497 | qtest_memread(to, start_address, &dest_byte_c, 1); | |
498 | usleep(1000 * 200); | |
499 | qtest_memread(to, start_address, &dest_byte_d, 1); | |
500 | g_assert_cmpint(dest_byte_c, ==, dest_byte_d); | |
7195a871 | 501 | |
2c9bb297 DDAG |
502 | check_guests_ram(to); |
503 | } | |
7195a871 JQ |
504 | |
505 | qtest_quit(to); | |
506 | ||
507 | cleanup("bootsect"); | |
508 | cleanup("migsocket"); | |
509 | cleanup("src_serial"); | |
510 | cleanup("dest_serial"); | |
511 | } | |
512 | ||
4c27486d JQ |
513 | static void deprecated_set_downtime(QTestState *who, const double value) |
514 | { | |
515 | QDict *rsp; | |
4c27486d | 516 | |
015715f5 MA |
517 | rsp = qtest_qmp(who, |
518 | "{ 'execute': 'migrate_set_downtime'," | |
519 | " 'arguments': { 'value': %f } }", value); | |
4c27486d | 520 | g_assert(qdict_haskey(rsp, "return")); |
cb3e7f08 | 521 | qobject_unref(rsp); |
c44a56d8 | 522 | migrate_check_parameter(who, "downtime-limit", value * 1000); |
4c27486d JQ |
523 | } |
524 | ||
c44a56d8 | 525 | static void deprecated_set_speed(QTestState *who, long long value) |
4c27486d JQ |
526 | { |
527 | QDict *rsp; | |
4c27486d | 528 | |
c44a56d8 MA |
529 | rsp = qtest_qmp(who, "{ 'execute': 'migrate_set_speed'," |
530 | "'arguments': { 'value': %lld } }", value); | |
4c27486d | 531 | g_assert(qdict_haskey(rsp, "return")); |
cb3e7f08 | 532 | qobject_unref(rsp); |
4c27486d JQ |
533 | migrate_check_parameter(who, "max-bandwidth", value); |
534 | } | |
535 | ||
536 | static void test_deprecated(void) | |
537 | { | |
538 | QTestState *from; | |
539 | ||
540 | from = qtest_start(""); | |
541 | ||
542 | deprecated_set_downtime(from, 0.12345); | |
c44a56d8 | 543 | deprecated_set_speed(from, 12345); |
4c27486d JQ |
544 | |
545 | qtest_quit(from); | |
546 | } | |
547 | ||
d131662a | 548 | static int migrate_postcopy_prepare(QTestState **from_ptr, |
3e81f73c PX |
549 | QTestState **to_ptr, |
550 | bool hide_error) | |
7195a871 JQ |
551 | { |
552 | char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); | |
863e27a8 | 553 | QTestState *from, *to; |
7195a871 | 554 | |
3e81f73c | 555 | if (test_migrate_start(&from, &to, uri, hide_error)) { |
d131662a | 556 | return -1; |
5fd4a9c9 | 557 | } |
ea0c6d62 | 558 | |
c44a56d8 MA |
559 | migrate_set_capability(from, "postcopy-ram", true); |
560 | migrate_set_capability(to, "postcopy-ram", true); | |
561 | migrate_set_capability(to, "postcopy-blocktime", true); | |
ea0c6d62 DDAG |
562 | |
563 | /* We want to pick a speed slow enough that the test completes | |
564 | * quickly, but that it doesn't complete precopy even on a slow | |
565 | * machine, so also set the downtime. | |
566 | */ | |
c44a56d8 MA |
567 | migrate_set_parameter(from, "max-bandwidth", 100000000); |
568 | migrate_set_parameter(from, "downtime-limit", 1); | |
ea0c6d62 DDAG |
569 | |
570 | /* Wait for the first serial output from the source */ | |
571 | wait_for_serial("src_serial"); | |
572 | ||
b5bbd3f3 | 573 | migrate(from, uri, "{}"); |
d131662a | 574 | g_free(uri); |
ea0c6d62 | 575 | |
863e27a8 | 576 | wait_for_migration_pass(from); |
ea0c6d62 | 577 | |
d131662a PX |
578 | *from_ptr = from; |
579 | *to_ptr = to; | |
ea0c6d62 | 580 | |
d131662a PX |
581 | return 0; |
582 | } | |
ea0c6d62 | 583 | |
d131662a PX |
584 | static void migrate_postcopy_complete(QTestState *from, QTestState *to) |
585 | { | |
586 | wait_for_migration_complete(from); | |
ea0c6d62 | 587 | |
d131662a | 588 | /* Make sure we get at least one "B" on destination */ |
ea0c6d62 | 589 | wait_for_serial("dest_serial"); |
ea0c6d62 | 590 | |
346f3dab AP |
591 | if (uffd_feature_thread_id) { |
592 | read_blocktime(to); | |
593 | } | |
ea0c6d62 | 594 | |
2c9bb297 DDAG |
595 | test_migrate_end(from, to, true); |
596 | } | |
597 | ||
d131662a PX |
598 | static void test_postcopy(void) |
599 | { | |
600 | QTestState *from, *to; | |
601 | ||
3e81f73c | 602 | if (migrate_postcopy_prepare(&from, &to, false)) { |
d131662a PX |
603 | return; |
604 | } | |
605 | migrate_postcopy_start(from, to); | |
606 | migrate_postcopy_complete(from, to); | |
607 | } | |
608 | ||
d5f49640 PX |
609 | static void test_postcopy_recovery(void) |
610 | { | |
611 | QTestState *from, *to; | |
612 | char *uri; | |
613 | ||
3e81f73c | 614 | if (migrate_postcopy_prepare(&from, &to, true)) { |
d5f49640 PX |
615 | return; |
616 | } | |
617 | ||
618 | /* Turn postcopy speed down, 4K/s is slow enough on any machines */ | |
c44a56d8 | 619 | migrate_set_parameter(from, "max-postcopy-bandwidth", 4096); |
d5f49640 PX |
620 | |
621 | /* Now we start the postcopy */ | |
622 | migrate_postcopy_start(from, to); | |
623 | ||
624 | /* | |
625 | * Wait until postcopy is really started; we can only run the | |
626 | * migrate-pause command during a postcopy | |
627 | */ | |
628 | wait_for_migration_status(from, "postcopy-active"); | |
629 | ||
630 | /* | |
631 | * Manually stop the postcopy migration. This emulates a network | |
632 | * failure with the migration socket | |
633 | */ | |
634 | migrate_pause(from); | |
635 | ||
636 | /* | |
637 | * Wait for destination side to reach postcopy-paused state. The | |
638 | * migrate-recover command can only succeed if destination machine | |
639 | * is in the paused state | |
640 | */ | |
641 | wait_for_migration_status(to, "postcopy-paused"); | |
642 | ||
643 | /* | |
644 | * Create a new socket to emulate a new channel that is different | |
645 | * from the broken migration channel; tell the destination to | |
646 | * listen to the new port | |
647 | */ | |
648 | uri = g_strdup_printf("unix:%s/migsocket-recover", tmpfs); | |
649 | migrate_recover(to, uri); | |
650 | ||
651 | /* | |
652 | * Try to rebuild the migration channel using the resume flag and | |
653 | * the newly created channel | |
654 | */ | |
655 | wait_for_migration_status(from, "postcopy-paused"); | |
b5bbd3f3 | 656 | migrate(from, uri, "{'resume': true}"); |
d5f49640 PX |
657 | g_free(uri); |
658 | ||
659 | /* Restore the postcopy bandwidth to unlimited */ | |
c44a56d8 | 660 | migrate_set_parameter(from, "max-postcopy-bandwidth", 0); |
d5f49640 PX |
661 | |
662 | migrate_postcopy_complete(from, to); | |
663 | } | |
664 | ||
2c9bb297 DDAG |
665 | static void test_baddest(void) |
666 | { | |
667 | QTestState *from, *to; | |
e1454165 | 668 | QDict *rsp_return; |
2f7074c6 | 669 | char *status; |
2c9bb297 DDAG |
670 | bool failed; |
671 | ||
5fd4a9c9 DDAG |
672 | if (test_migrate_start(&from, &to, "tcp:0:0", true)) { |
673 | return; | |
674 | } | |
b5bbd3f3 | 675 | migrate(from, "tcp:0:0", "{}"); |
2c9bb297 | 676 | do { |
2f7074c6 | 677 | status = migrate_query_status(from); |
2c9bb297 DDAG |
678 | g_assert(!strcmp(status, "setup") || !(strcmp(status, "failed"))); |
679 | failed = !strcmp(status, "failed"); | |
2f7074c6 | 680 | g_free(status); |
2c9bb297 DDAG |
681 | } while (!failed); |
682 | ||
683 | /* Is the machine currently running? */ | |
e1454165 | 684 | rsp_return = wait_command(from, "{ 'execute': 'query-status' }"); |
2c9bb297 DDAG |
685 | g_assert(qdict_haskey(rsp_return, "running")); |
686 | g_assert(qdict_get_bool(rsp_return, "running")); | |
e1454165 | 687 | qobject_unref(rsp_return); |
2c9bb297 DDAG |
688 | |
689 | test_migrate_end(from, to, false); | |
ea0c6d62 DDAG |
690 | } |
691 | ||
2884100c JQ |
692 | static void test_precopy_unix(void) |
693 | { | |
694 | char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); | |
695 | QTestState *from, *to; | |
696 | ||
5fd4a9c9 DDAG |
697 | if (test_migrate_start(&from, &to, uri, false)) { |
698 | return; | |
699 | } | |
2884100c JQ |
700 | |
701 | /* We want to pick a speed slow enough that the test completes | |
702 | * quickly, but that it doesn't complete precopy even on a slow | |
703 | * machine, so also set the downtime. | |
704 | */ | |
705 | /* 1 ms should make it not converge*/ | |
c44a56d8 | 706 | migrate_set_parameter(from, "downtime-limit", 1); |
2884100c | 707 | /* 1GB/s */ |
c44a56d8 | 708 | migrate_set_parameter(from, "max-bandwidth", 1000000000); |
2884100c JQ |
709 | |
710 | /* Wait for the first serial output from the source */ | |
711 | wait_for_serial("src_serial"); | |
712 | ||
b5bbd3f3 | 713 | migrate(from, uri, "{}"); |
2884100c JQ |
714 | |
715 | wait_for_migration_pass(from); | |
716 | ||
717 | /* 300 ms should converge */ | |
c44a56d8 | 718 | migrate_set_parameter(from, "downtime-limit", 300); |
2884100c JQ |
719 | |
720 | if (!got_stop) { | |
721 | qtest_qmp_eventwait(from, "STOP"); | |
722 | } | |
723 | ||
724 | qtest_qmp_eventwait(to, "RESUME"); | |
725 | ||
726 | wait_for_serial("dest_serial"); | |
727 | wait_for_migration_complete(from); | |
728 | ||
729 | test_migrate_end(from, to, true); | |
730 | g_free(uri); | |
731 | } | |
732 | ||
ea0c6d62 DDAG |
733 | int main(int argc, char **argv) |
734 | { | |
2656bfd9 | 735 | char template[] = "/tmp/migration-test-XXXXXX"; |
ea0c6d62 DDAG |
736 | int ret; |
737 | ||
738 | g_test_init(&argc, &argv, NULL); | |
739 | ||
740 | if (!ufd_version_check()) { | |
741 | return 0; | |
742 | } | |
743 | ||
880b169a TH |
744 | /* |
745 | * On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG | |
746 | * is touchy due to race conditions on dirty bits (especially on PPC for | |
747 | * some reason) | |
748 | */ | |
749 | if (g_str_equal(qtest_get_arch(), "ppc64") && | |
750 | access("/sys/module/kvm_hv", F_OK)) { | |
751 | g_test_message("Skipping test: kvm_hv not available"); | |
752 | return 0; | |
753 | } | |
754 | ||
ea0c6d62 DDAG |
755 | tmpfs = mkdtemp(template); |
756 | if (!tmpfs) { | |
757 | g_test_message("mkdtemp on path (%s): %s\n", template, strerror(errno)); | |
758 | } | |
759 | g_assert(tmpfs); | |
760 | ||
761 | module_call_init(MODULE_INIT_QOM); | |
762 | ||
2884100c | 763 | qtest_add_func("/migration/postcopy/unix", test_postcopy); |
d5f49640 | 764 | qtest_add_func("/migration/postcopy/recovery", test_postcopy_recovery); |
4c27486d | 765 | qtest_add_func("/migration/deprecated", test_deprecated); |
2c9bb297 | 766 | qtest_add_func("/migration/bad_dest", test_baddest); |
2884100c | 767 | qtest_add_func("/migration/precopy/unix", test_precopy_unix); |
ea0c6d62 DDAG |
768 | |
769 | ret = g_test_run(); | |
770 | ||
771 | g_assert_cmpint(ret, ==, 0); | |
772 | ||
773 | ret = rmdir(tmpfs); | |
774 | if (ret != 0) { | |
775 | g_test_message("unable to rmdir: path (%s): %s\n", | |
776 | tmpfs, strerror(errno)); | |
777 | } | |
778 | ||
779 | return ret; | |
780 | } |