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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" |
ea0c6d62 DDAG |
17 | #include "qemu/option.h" |
18 | #include "qemu/range.h" | |
a9c94277 | 19 | #include "qemu/sockets.h" |
8228e353 | 20 | #include "chardev/char.h" |
ea0c6d62 DDAG |
21 | #include "sysemu/sysemu.h" |
22 | ||
055a1efc MA |
23 | /* TODO actually test the results and get rid of this */ |
24 | #define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS__)) | |
25 | ||
ea0c6d62 DDAG |
26 | const unsigned start_address = 1024 * 1024; |
27 | const unsigned end_address = 100 * 1024 * 1024; | |
28 | bool got_stop; | |
346f3dab | 29 | static bool uffd_feature_thread_id; |
ea0c6d62 DDAG |
30 | |
31 | #if defined(__linux__) | |
ea0c6d62 DDAG |
32 | #include <sys/syscall.h> |
33 | #include <sys/vfs.h> | |
34 | #endif | |
35 | ||
36 | #if defined(__linux__) && defined(__NR_userfaultfd) && defined(CONFIG_EVENTFD) | |
37 | #include <sys/eventfd.h> | |
38 | #include <sys/ioctl.h> | |
39 | #include <linux/userfaultfd.h> | |
40 | ||
41 | static bool ufd_version_check(void) | |
42 | { | |
43 | struct uffdio_api api_struct; | |
44 | uint64_t ioctl_mask; | |
45 | ||
e1ae9fb6 | 46 | int ufd = syscall(__NR_userfaultfd, O_CLOEXEC); |
ea0c6d62 DDAG |
47 | |
48 | if (ufd == -1) { | |
49 | g_test_message("Skipping test: userfaultfd not available"); | |
50 | return false; | |
51 | } | |
52 | ||
53 | api_struct.api = UFFD_API; | |
54 | api_struct.features = 0; | |
55 | if (ioctl(ufd, UFFDIO_API, &api_struct)) { | |
56 | g_test_message("Skipping test: UFFDIO_API failed"); | |
57 | return false; | |
58 | } | |
346f3dab | 59 | uffd_feature_thread_id = api_struct.features & UFFD_FEATURE_THREAD_ID; |
ea0c6d62 DDAG |
60 | |
61 | ioctl_mask = (__u64)1 << _UFFDIO_REGISTER | | |
62 | (__u64)1 << _UFFDIO_UNREGISTER; | |
63 | if ((api_struct.ioctls & ioctl_mask) != ioctl_mask) { | |
64 | g_test_message("Skipping test: Missing userfault feature"); | |
65 | return false; | |
66 | } | |
67 | ||
68 | return true; | |
69 | } | |
70 | ||
71 | #else | |
72 | static bool ufd_version_check(void) | |
73 | { | |
74 | g_test_message("Skipping test: Userfault not available (builtdtime)"); | |
75 | return false; | |
76 | } | |
77 | ||
78 | #endif | |
79 | ||
80 | static const char *tmpfs; | |
81 | ||
82 | /* A simple PC boot sector that modifies memory (1-100MB) quickly | |
17ca7746 | 83 | * outputting a 'B' every so often if it's still running. |
ea0c6d62 | 84 | */ |
17ca7746 | 85 | #include "tests/migration/x86-a-b-bootblock.h" |
ea0c6d62 | 86 | |
aaf89c8a | 87 | static void init_bootfile_x86(const char *bootpath) |
88 | { | |
89 | FILE *bootfile = fopen(bootpath, "wb"); | |
90 | ||
17ca7746 | 91 | g_assert_cmpint(fwrite(x86_bootsect, 512, 1, bootfile), ==, 1); |
aaf89c8a | 92 | fclose(bootfile); |
93 | } | |
94 | ||
ea0c6d62 DDAG |
95 | /* |
96 | * Wait for some output in the serial output file, | |
97 | * we get an 'A' followed by an endless string of 'B's | |
98 | * but on the destination we won't have the A. | |
99 | */ | |
100 | static void wait_for_serial(const char *side) | |
101 | { | |
102 | char *serialpath = g_strdup_printf("%s/%s", tmpfs, side); | |
103 | FILE *serialfile = fopen(serialpath, "r"); | |
aaf89c8a | 104 | const char *arch = qtest_get_arch(); |
105 | int started = (strcmp(side, "src_serial") == 0 && | |
106 | strcmp(arch, "ppc64") == 0) ? 0 : 1; | |
ea0c6d62 | 107 | |
e2dd21e5 | 108 | g_free(serialpath); |
ea0c6d62 DDAG |
109 | do { |
110 | int readvalue = fgetc(serialfile); | |
111 | ||
aaf89c8a | 112 | if (!started) { |
113 | /* SLOF prints its banner before starting test, | |
114 | * to ignore it, mark the start of the test with '_', | |
115 | * ignore all characters until this marker | |
116 | */ | |
117 | switch (readvalue) { | |
118 | case '_': | |
119 | started = 1; | |
120 | break; | |
121 | case EOF: | |
122 | fseek(serialfile, 0, SEEK_SET); | |
123 | usleep(1000); | |
124 | break; | |
125 | } | |
126 | continue; | |
127 | } | |
ea0c6d62 DDAG |
128 | switch (readvalue) { |
129 | case 'A': | |
130 | /* Fine */ | |
131 | break; | |
132 | ||
133 | case 'B': | |
134 | /* It's alive! */ | |
135 | fclose(serialfile); | |
ea0c6d62 DDAG |
136 | return; |
137 | ||
138 | case EOF: | |
aaf89c8a | 139 | started = (strcmp(side, "src_serial") == 0 && |
140 | strcmp(arch, "ppc64") == 0) ? 0 : 1; | |
ea0c6d62 DDAG |
141 | fseek(serialfile, 0, SEEK_SET); |
142 | usleep(1000); | |
143 | break; | |
144 | ||
145 | default: | |
146 | fprintf(stderr, "Unexpected %d on %s serial\n", readvalue, side); | |
147 | g_assert_not_reached(); | |
148 | } | |
149 | } while (true); | |
150 | } | |
151 | ||
152 | /* | |
153 | * Events can get in the way of responses we are actually waiting for. | |
154 | */ | |
863e27a8 | 155 | static QDict *wait_command(QTestState *who, const char *command) |
ea0c6d62 DDAG |
156 | { |
157 | const char *event_string; | |
863e27a8 JQ |
158 | QDict *response; |
159 | ||
160 | response = qtest_qmp(who, command); | |
ea0c6d62 | 161 | |
863e27a8 JQ |
162 | while (qdict_haskey(response, "event")) { |
163 | /* OK, it was an event */ | |
164 | event_string = qdict_get_str(response, "event"); | |
165 | if (!strcmp(event_string, "STOP")) { | |
166 | got_stop = true; | |
167 | } | |
cb3e7f08 | 168 | qobject_unref(response); |
863e27a8 | 169 | response = qtest_qmp_receive(who); |
ea0c6d62 | 170 | } |
863e27a8 | 171 | return response; |
ea0c6d62 DDAG |
172 | } |
173 | ||
2f7074c6 PX |
174 | /* |
175 | * Note: caller is responsible to free the returned object via | |
176 | * qobject_unref() after use | |
177 | */ | |
178 | static QDict *migrate_query(QTestState *who) | |
179 | { | |
180 | QDict *rsp, *rsp_return; | |
181 | ||
182 | rsp = wait_command(who, "{ 'execute': 'query-migrate' }"); | |
183 | rsp_return = qdict_get_qdict(rsp, "return"); | |
184 | g_assert(rsp_return); | |
185 | qobject_ref(rsp_return); | |
186 | qobject_unref(rsp); | |
187 | ||
188 | return rsp_return; | |
189 | } | |
190 | ||
191 | /* | |
192 | * Note: caller is responsible to free the returned object via | |
193 | * g_free() after use | |
194 | */ | |
195 | static gchar *migrate_query_status(QTestState *who) | |
196 | { | |
197 | QDict *rsp_return = migrate_query(who); | |
198 | gchar *status = g_strdup(qdict_get_str(rsp_return, "status")); | |
199 | ||
200 | g_assert(status); | |
201 | qobject_unref(rsp_return); | |
202 | ||
203 | return status; | |
204 | } | |
ea0c6d62 DDAG |
205 | |
206 | /* | |
207 | * It's tricky to use qemu's migration event capability with qtest, | |
208 | * events suddenly appearing confuse the qmp()/hmp() responses. | |
ea0c6d62 DDAG |
209 | */ |
210 | ||
863e27a8 | 211 | static uint64_t get_migration_pass(QTestState *who) |
ea0c6d62 | 212 | { |
2f7074c6 | 213 | QDict *rsp_return, *rsp_ram; |
ea0c6d62 DDAG |
214 | uint64_t result; |
215 | ||
2f7074c6 | 216 | rsp_return = migrate_query(who); |
ea0c6d62 DDAG |
217 | if (!qdict_haskey(rsp_return, "ram")) { |
218 | /* Still in setup */ | |
219 | result = 0; | |
220 | } else { | |
221 | rsp_ram = qdict_get_qdict(rsp_return, "ram"); | |
222 | result = qdict_get_try_int(rsp_ram, "dirty-sync-count", 0); | |
ea0c6d62 | 223 | } |
2f7074c6 | 224 | qobject_unref(rsp_return); |
ea0c6d62 DDAG |
225 | return result; |
226 | } | |
227 | ||
346f3dab AP |
228 | static void read_blocktime(QTestState *who) |
229 | { | |
2f7074c6 | 230 | QDict *rsp_return; |
346f3dab | 231 | |
2f7074c6 | 232 | rsp_return = migrate_query(who); |
346f3dab | 233 | g_assert(qdict_haskey(rsp_return, "postcopy-blocktime")); |
2f7074c6 | 234 | qobject_unref(rsp_return); |
346f3dab AP |
235 | } |
236 | ||
2f6d3138 PX |
237 | static void wait_for_migration_status(QTestState *who, |
238 | const char *goal) | |
ea0c6d62 | 239 | { |
6a7724e9 | 240 | while (true) { |
6a7724e9 | 241 | bool completed; |
2f7074c6 | 242 | char *status; |
ea0c6d62 | 243 | |
2f7074c6 | 244 | status = migrate_query_status(who); |
2f6d3138 | 245 | completed = strcmp(status, goal) == 0; |
ea0c6d62 | 246 | g_assert_cmpstr(status, !=, "failed"); |
2f7074c6 | 247 | g_free(status); |
6a7724e9 JQ |
248 | if (completed) { |
249 | return; | |
250 | } | |
251 | usleep(1000); | |
252 | } | |
ea0c6d62 DDAG |
253 | } |
254 | ||
2f6d3138 PX |
255 | static void wait_for_migration_complete(QTestState *who) |
256 | { | |
257 | wait_for_migration_status(who, "completed"); | |
258 | } | |
259 | ||
863e27a8 | 260 | static void wait_for_migration_pass(QTestState *who) |
ea0c6d62 | 261 | { |
863e27a8 | 262 | uint64_t initial_pass = get_migration_pass(who); |
ea0c6d62 DDAG |
263 | uint64_t pass; |
264 | ||
265 | /* Wait for the 1st sync */ | |
6a7724e9 JQ |
266 | while (!got_stop && !initial_pass) { |
267 | usleep(1000); | |
863e27a8 | 268 | initial_pass = get_migration_pass(who); |
6a7724e9 | 269 | } |
ea0c6d62 DDAG |
270 | |
271 | do { | |
6a7724e9 | 272 | usleep(1000); |
863e27a8 | 273 | pass = get_migration_pass(who); |
ea0c6d62 DDAG |
274 | } while (pass == initial_pass && !got_stop); |
275 | } | |
276 | ||
7195a871 | 277 | static void check_guests_ram(QTestState *who) |
ea0c6d62 DDAG |
278 | { |
279 | /* Our ASM test will have been incrementing one byte from each page from | |
280 | * 1MB to <100MB in order. | |
281 | * This gives us a constraint that any page's byte should be equal or less | |
282 | * than the previous pages byte (mod 256); and they should all be equal | |
283 | * except for one transition at the point where we meet the incrementer. | |
284 | * (We're running this with the guest stopped). | |
285 | */ | |
286 | unsigned address; | |
287 | uint8_t first_byte; | |
288 | uint8_t last_byte; | |
289 | bool hit_edge = false; | |
290 | bool bad = false; | |
291 | ||
7195a871 | 292 | qtest_memread(who, start_address, &first_byte, 1); |
ea0c6d62 DDAG |
293 | last_byte = first_byte; |
294 | ||
295 | for (address = start_address + 4096; address < end_address; address += 4096) | |
296 | { | |
297 | uint8_t b; | |
7195a871 | 298 | qtest_memread(who, address, &b, 1); |
ea0c6d62 DDAG |
299 | if (b != last_byte) { |
300 | if (((b + 1) % 256) == last_byte && !hit_edge) { | |
301 | /* This is OK, the guest stopped at the point of | |
302 | * incrementing the previous page but didn't get | |
303 | * to us yet. | |
304 | */ | |
305 | hit_edge = true; | |
829db8b4 | 306 | last_byte = b; |
ea0c6d62 DDAG |
307 | } else { |
308 | fprintf(stderr, "Memory content inconsistency at %x" | |
309 | " first_byte = %x last_byte = %x current = %x" | |
310 | " hit_edge = %x\n", | |
311 | address, first_byte, last_byte, b, hit_edge); | |
312 | bad = true; | |
313 | } | |
314 | } | |
ea0c6d62 DDAG |
315 | } |
316 | g_assert_false(bad); | |
317 | } | |
318 | ||
319 | static void cleanup(const char *filename) | |
320 | { | |
321 | char *path = g_strdup_printf("%s/%s", tmpfs, filename); | |
322 | ||
323 | unlink(path); | |
e2dd21e5 | 324 | g_free(path); |
ea0c6d62 DDAG |
325 | } |
326 | ||
56b4a42a JQ |
327 | static void migrate_check_parameter(QTestState *who, const char *parameter, |
328 | const char *value) | |
329 | { | |
330 | QDict *rsp, *rsp_return; | |
9c43435d | 331 | char *result; |
56b4a42a JQ |
332 | |
333 | rsp = wait_command(who, "{ 'execute': 'query-migrate-parameters' }"); | |
334 | rsp_return = qdict_get_qdict(rsp, "return"); | |
335 | result = g_strdup_printf("%" PRId64, | |
336 | qdict_get_try_int(rsp_return, parameter, -1)); | |
337 | g_assert_cmpstr(result, ==, value); | |
9c43435d | 338 | g_free(result); |
cb3e7f08 | 339 | qobject_unref(rsp); |
56b4a42a JQ |
340 | } |
341 | ||
1f90d797 JQ |
342 | static void migrate_set_parameter(QTestState *who, const char *parameter, |
343 | const char *value) | |
d62fbe60 JQ |
344 | { |
345 | QDict *rsp; | |
346 | gchar *cmd; | |
347 | ||
1f90d797 JQ |
348 | cmd = g_strdup_printf("{ 'execute': 'migrate-set-parameters'," |
349 | "'arguments': { '%s': %s } }", | |
350 | parameter, value); | |
d62fbe60 JQ |
351 | rsp = qtest_qmp(who, cmd); |
352 | g_free(cmd); | |
353 | g_assert(qdict_haskey(rsp, "return")); | |
cb3e7f08 | 354 | qobject_unref(rsp); |
1f90d797 | 355 | migrate_check_parameter(who, parameter, value); |
d62fbe60 JQ |
356 | } |
357 | ||
d5f49640 PX |
358 | static void migrate_pause(QTestState *who) |
359 | { | |
360 | QDict *rsp; | |
361 | ||
362 | rsp = wait_command(who, "{ 'execute': 'migrate-pause' }"); | |
363 | g_assert(qdict_haskey(rsp, "return")); | |
364 | qobject_unref(rsp); | |
365 | } | |
366 | ||
367 | static void migrate_recover(QTestState *who, const char *uri) | |
368 | { | |
369 | QDict *rsp; | |
370 | gchar *cmd = g_strdup_printf( | |
371 | "{ 'execute': 'migrate-recover', " | |
372 | " 'id': 'recover-cmd', " | |
373 | " 'arguments': { 'uri': '%s' } }", uri); | |
374 | ||
375 | rsp = wait_command(who, cmd); | |
376 | g_assert(qdict_haskey(rsp, "return")); | |
377 | g_free(cmd); | |
378 | qobject_unref(rsp); | |
379 | } | |
380 | ||
d62fbe60 JQ |
381 | static void migrate_set_capability(QTestState *who, const char *capability, |
382 | const char *value) | |
383 | { | |
384 | QDict *rsp; | |
385 | gchar *cmd; | |
386 | ||
387 | cmd = g_strdup_printf("{ 'execute': 'migrate-set-capabilities'," | |
388 | "'arguments': { " | |
389 | "'capabilities': [ { " | |
390 | "'capability': '%s', 'state': %s } ] } }", | |
391 | capability, value); | |
392 | rsp = qtest_qmp(who, cmd); | |
393 | g_free(cmd); | |
394 | g_assert(qdict_haskey(rsp, "return")); | |
cb3e7f08 | 395 | qobject_unref(rsp); |
d62fbe60 JQ |
396 | } |
397 | ||
7e1d7427 | 398 | static void migrate(QTestState *who, const char *uri, const char *extra) |
d62fbe60 JQ |
399 | { |
400 | QDict *rsp; | |
401 | gchar *cmd; | |
402 | ||
403 | cmd = g_strdup_printf("{ 'execute': 'migrate'," | |
7e1d7427 PX |
404 | " 'arguments': { 'uri': '%s' %s } }", |
405 | uri, extra ? extra : ""); | |
d62fbe60 JQ |
406 | rsp = qtest_qmp(who, cmd); |
407 | g_free(cmd); | |
408 | g_assert(qdict_haskey(rsp, "return")); | |
cb3e7f08 | 409 | qobject_unref(rsp); |
d62fbe60 JQ |
410 | } |
411 | ||
d131662a | 412 | static void migrate_postcopy_start(QTestState *from, QTestState *to) |
eb665d7d JQ |
413 | { |
414 | QDict *rsp; | |
415 | ||
d131662a | 416 | rsp = wait_command(from, "{ 'execute': 'migrate-start-postcopy' }"); |
eb665d7d | 417 | g_assert(qdict_haskey(rsp, "return")); |
cb3e7f08 | 418 | qobject_unref(rsp); |
d131662a PX |
419 | |
420 | if (!got_stop) { | |
421 | qtest_qmp_eventwait(from, "STOP"); | |
422 | } | |
423 | ||
424 | qtest_qmp_eventwait(to, "RESUME"); | |
eb665d7d JQ |
425 | } |
426 | ||
5fd4a9c9 | 427 | static int test_migrate_start(QTestState **from, QTestState **to, |
f96d6651 | 428 | const char *uri, bool hide_stderr) |
ea0c6d62 | 429 | { |
d62fbe60 | 430 | gchar *cmd_src, *cmd_dst; |
ea0c6d62 | 431 | char *bootpath = g_strdup_printf("%s/bootsect", tmpfs); |
aaf89c8a | 432 | const char *arch = qtest_get_arch(); |
63b2d935 | 433 | const char *accel = "kvm:tcg"; |
ea0c6d62 DDAG |
434 | |
435 | got_stop = false; | |
ea0c6d62 | 436 | |
aaf89c8a | 437 | if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { |
438 | init_bootfile_x86(bootpath); | |
63b2d935 | 439 | cmd_src = g_strdup_printf("-machine accel=%s -m 150M" |
31a6bb74 | 440 | " -name source,debug-threads=on" |
aaf89c8a | 441 | " -serial file:%s/src_serial" |
442 | " -drive file=%s,format=raw", | |
63b2d935 JQ |
443 | accel, tmpfs, bootpath); |
444 | cmd_dst = g_strdup_printf("-machine accel=%s -m 150M" | |
31a6bb74 | 445 | " -name target,debug-threads=on" |
aaf89c8a | 446 | " -serial file:%s/dest_serial" |
447 | " -drive file=%s,format=raw" | |
448 | " -incoming %s", | |
63b2d935 | 449 | accel, tmpfs, bootpath, uri); |
aaf89c8a | 450 | } else if (strcmp(arch, "ppc64") == 0) { |
171da9d5 | 451 | |
5fd4a9c9 DDAG |
452 | /* On ppc64, the test only works with kvm-hv, but not with kvm-pr |
453 | * and TCG is touchy due to race conditions on dirty bits | |
454 | * (especially on PPC for some reason) | |
455 | */ | |
63b2d935 | 456 | if (access("/sys/module/kvm_hv", F_OK)) { |
5fd4a9c9 DDAG |
457 | g_print("Skipping test: kvm_hv not available "); |
458 | return -1; | |
63b2d935 | 459 | } |
171da9d5 | 460 | cmd_src = g_strdup_printf("-machine accel=%s -m 256M" |
31a6bb74 | 461 | " -name source,debug-threads=on" |
aaf89c8a | 462 | " -serial file:%s/src_serial" |
cdf33815 JQ |
463 | " -prom-env '" |
464 | "boot-command=hex .\" _\" begin %x %x " | |
465 | "do i c@ 1 + i c! 1000 +loop .\" B\" 0 " | |
466 | "until'", accel, tmpfs, end_address, | |
467 | start_address); | |
171da9d5 | 468 | cmd_dst = g_strdup_printf("-machine accel=%s -m 256M" |
31a6bb74 | 469 | " -name target,debug-threads=on" |
aaf89c8a | 470 | " -serial file:%s/dest_serial" |
471 | " -incoming %s", | |
171da9d5 | 472 | accel, tmpfs, uri); |
aaf89c8a | 473 | } else { |
474 | g_assert_not_reached(); | |
475 | } | |
476 | ||
e2dd21e5 MAL |
477 | g_free(bootpath); |
478 | ||
f96d6651 DDAG |
479 | if (hide_stderr) { |
480 | gchar *tmp; | |
481 | tmp = g_strdup_printf("%s 2>/dev/null", cmd_src); | |
482 | g_free(cmd_src); | |
483 | cmd_src = tmp; | |
484 | ||
485 | tmp = g_strdup_printf("%s 2>/dev/null", cmd_dst); | |
486 | g_free(cmd_dst); | |
487 | cmd_dst = tmp; | |
488 | } | |
489 | ||
7195a871 | 490 | *from = qtest_start(cmd_src); |
aaf89c8a | 491 | g_free(cmd_src); |
492 | ||
7195a871 | 493 | *to = qtest_init(cmd_dst); |
aaf89c8a | 494 | g_free(cmd_dst); |
5fd4a9c9 | 495 | return 0; |
7195a871 JQ |
496 | } |
497 | ||
2c9bb297 | 498 | static void test_migrate_end(QTestState *from, QTestState *to, bool test_dest) |
7195a871 JQ |
499 | { |
500 | unsigned char dest_byte_a, dest_byte_b, dest_byte_c, dest_byte_d; | |
501 | ||
502 | qtest_quit(from); | |
503 | ||
2c9bb297 DDAG |
504 | if (test_dest) { |
505 | qtest_memread(to, start_address, &dest_byte_a, 1); | |
7195a871 | 506 | |
2c9bb297 DDAG |
507 | /* Destination still running, wait for a byte to change */ |
508 | do { | |
509 | qtest_memread(to, start_address, &dest_byte_b, 1); | |
510 | usleep(1000 * 10); | |
511 | } while (dest_byte_a == dest_byte_b); | |
512 | ||
513 | qtest_qmp_discard_response(to, "{ 'execute' : 'stop'}"); | |
7195a871 | 514 | |
2c9bb297 DDAG |
515 | /* With it stopped, check nothing changes */ |
516 | qtest_memread(to, start_address, &dest_byte_c, 1); | |
517 | usleep(1000 * 200); | |
518 | qtest_memread(to, start_address, &dest_byte_d, 1); | |
519 | g_assert_cmpint(dest_byte_c, ==, dest_byte_d); | |
7195a871 | 520 | |
2c9bb297 DDAG |
521 | check_guests_ram(to); |
522 | } | |
7195a871 JQ |
523 | |
524 | qtest_quit(to); | |
525 | ||
526 | cleanup("bootsect"); | |
527 | cleanup("migsocket"); | |
528 | cleanup("src_serial"); | |
529 | cleanup("dest_serial"); | |
530 | } | |
531 | ||
4c27486d JQ |
532 | static void deprecated_set_downtime(QTestState *who, const double value) |
533 | { | |
534 | QDict *rsp; | |
535 | gchar *cmd; | |
536 | char *expected; | |
537 | int64_t result_int; | |
538 | ||
539 | cmd = g_strdup_printf("{ 'execute': 'migrate_set_downtime'," | |
540 | "'arguments': { 'value': %g } }", value); | |
541 | rsp = qtest_qmp(who, cmd); | |
542 | g_free(cmd); | |
543 | g_assert(qdict_haskey(rsp, "return")); | |
cb3e7f08 | 544 | qobject_unref(rsp); |
4c27486d JQ |
545 | result_int = value * 1000L; |
546 | expected = g_strdup_printf("%" PRId64, result_int); | |
547 | migrate_check_parameter(who, "downtime-limit", expected); | |
548 | g_free(expected); | |
549 | } | |
550 | ||
551 | static void deprecated_set_speed(QTestState *who, const char *value) | |
552 | { | |
553 | QDict *rsp; | |
554 | gchar *cmd; | |
555 | ||
556 | cmd = g_strdup_printf("{ 'execute': 'migrate_set_speed'," | |
557 | "'arguments': { 'value': %s } }", value); | |
558 | rsp = qtest_qmp(who, cmd); | |
559 | g_free(cmd); | |
560 | g_assert(qdict_haskey(rsp, "return")); | |
cb3e7f08 | 561 | qobject_unref(rsp); |
4c27486d JQ |
562 | migrate_check_parameter(who, "max-bandwidth", value); |
563 | } | |
564 | ||
565 | static void test_deprecated(void) | |
566 | { | |
567 | QTestState *from; | |
568 | ||
569 | from = qtest_start(""); | |
570 | ||
571 | deprecated_set_downtime(from, 0.12345); | |
572 | deprecated_set_speed(from, "12345"); | |
573 | ||
574 | qtest_quit(from); | |
575 | } | |
576 | ||
d131662a | 577 | static int migrate_postcopy_prepare(QTestState **from_ptr, |
3e81f73c PX |
578 | QTestState **to_ptr, |
579 | bool hide_error) | |
7195a871 JQ |
580 | { |
581 | char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); | |
863e27a8 | 582 | QTestState *from, *to; |
7195a871 | 583 | |
3e81f73c | 584 | if (test_migrate_start(&from, &to, uri, hide_error)) { |
d131662a | 585 | return -1; |
5fd4a9c9 | 586 | } |
ea0c6d62 | 587 | |
d62fbe60 JQ |
588 | migrate_set_capability(from, "postcopy-ram", "true"); |
589 | migrate_set_capability(to, "postcopy-ram", "true"); | |
346f3dab | 590 | migrate_set_capability(to, "postcopy-blocktime", "true"); |
ea0c6d62 DDAG |
591 | |
592 | /* We want to pick a speed slow enough that the test completes | |
593 | * quickly, but that it doesn't complete precopy even on a slow | |
594 | * machine, so also set the downtime. | |
595 | */ | |
1f90d797 JQ |
596 | migrate_set_parameter(from, "max-bandwidth", "100000000"); |
597 | migrate_set_parameter(from, "downtime-limit", "1"); | |
ea0c6d62 DDAG |
598 | |
599 | /* Wait for the first serial output from the source */ | |
600 | wait_for_serial("src_serial"); | |
601 | ||
7e1d7427 | 602 | migrate(from, uri, NULL); |
d131662a | 603 | g_free(uri); |
ea0c6d62 | 604 | |
863e27a8 | 605 | wait_for_migration_pass(from); |
ea0c6d62 | 606 | |
d131662a PX |
607 | *from_ptr = from; |
608 | *to_ptr = to; | |
ea0c6d62 | 609 | |
d131662a PX |
610 | return 0; |
611 | } | |
ea0c6d62 | 612 | |
d131662a PX |
613 | static void migrate_postcopy_complete(QTestState *from, QTestState *to) |
614 | { | |
615 | wait_for_migration_complete(from); | |
ea0c6d62 | 616 | |
d131662a | 617 | /* Make sure we get at least one "B" on destination */ |
ea0c6d62 | 618 | wait_for_serial("dest_serial"); |
ea0c6d62 | 619 | |
346f3dab AP |
620 | if (uffd_feature_thread_id) { |
621 | read_blocktime(to); | |
622 | } | |
ea0c6d62 | 623 | |
2c9bb297 DDAG |
624 | test_migrate_end(from, to, true); |
625 | } | |
626 | ||
d131662a PX |
627 | static void test_postcopy(void) |
628 | { | |
629 | QTestState *from, *to; | |
630 | ||
3e81f73c | 631 | if (migrate_postcopy_prepare(&from, &to, false)) { |
d131662a PX |
632 | return; |
633 | } | |
634 | migrate_postcopy_start(from, to); | |
635 | migrate_postcopy_complete(from, to); | |
636 | } | |
637 | ||
d5f49640 PX |
638 | static void test_postcopy_recovery(void) |
639 | { | |
640 | QTestState *from, *to; | |
641 | char *uri; | |
642 | ||
3e81f73c | 643 | if (migrate_postcopy_prepare(&from, &to, true)) { |
d5f49640 PX |
644 | return; |
645 | } | |
646 | ||
647 | /* Turn postcopy speed down, 4K/s is slow enough on any machines */ | |
648 | migrate_set_parameter(from, "max-postcopy-bandwidth", "4096"); | |
649 | ||
650 | /* Now we start the postcopy */ | |
651 | migrate_postcopy_start(from, to); | |
652 | ||
653 | /* | |
654 | * Wait until postcopy is really started; we can only run the | |
655 | * migrate-pause command during a postcopy | |
656 | */ | |
657 | wait_for_migration_status(from, "postcopy-active"); | |
658 | ||
659 | /* | |
660 | * Manually stop the postcopy migration. This emulates a network | |
661 | * failure with the migration socket | |
662 | */ | |
663 | migrate_pause(from); | |
664 | ||
665 | /* | |
666 | * Wait for destination side to reach postcopy-paused state. The | |
667 | * migrate-recover command can only succeed if destination machine | |
668 | * is in the paused state | |
669 | */ | |
670 | wait_for_migration_status(to, "postcopy-paused"); | |
671 | ||
672 | /* | |
673 | * Create a new socket to emulate a new channel that is different | |
674 | * from the broken migration channel; tell the destination to | |
675 | * listen to the new port | |
676 | */ | |
677 | uri = g_strdup_printf("unix:%s/migsocket-recover", tmpfs); | |
678 | migrate_recover(to, uri); | |
679 | ||
680 | /* | |
681 | * Try to rebuild the migration channel using the resume flag and | |
682 | * the newly created channel | |
683 | */ | |
684 | wait_for_migration_status(from, "postcopy-paused"); | |
685 | migrate(from, uri, ", 'resume': true"); | |
686 | g_free(uri); | |
687 | ||
688 | /* Restore the postcopy bandwidth to unlimited */ | |
689 | migrate_set_parameter(from, "max-postcopy-bandwidth", "0"); | |
690 | ||
691 | migrate_postcopy_complete(from, to); | |
692 | } | |
693 | ||
2c9bb297 DDAG |
694 | static void test_baddest(void) |
695 | { | |
696 | QTestState *from, *to; | |
697 | QDict *rsp, *rsp_return; | |
2f7074c6 | 698 | char *status; |
2c9bb297 DDAG |
699 | bool failed; |
700 | ||
5fd4a9c9 DDAG |
701 | if (test_migrate_start(&from, &to, "tcp:0:0", true)) { |
702 | return; | |
703 | } | |
7e1d7427 | 704 | migrate(from, "tcp:0:0", NULL); |
2c9bb297 | 705 | do { |
2f7074c6 | 706 | status = migrate_query_status(from); |
2c9bb297 DDAG |
707 | g_assert(!strcmp(status, "setup") || !(strcmp(status, "failed"))); |
708 | failed = !strcmp(status, "failed"); | |
2f7074c6 | 709 | g_free(status); |
2c9bb297 DDAG |
710 | } while (!failed); |
711 | ||
712 | /* Is the machine currently running? */ | |
713 | rsp = wait_command(from, "{ 'execute': 'query-status' }"); | |
714 | g_assert(qdict_haskey(rsp, "return")); | |
715 | rsp_return = qdict_get_qdict(rsp, "return"); | |
716 | g_assert(qdict_haskey(rsp_return, "running")); | |
717 | g_assert(qdict_get_bool(rsp_return, "running")); | |
cb3e7f08 | 718 | qobject_unref(rsp); |
2c9bb297 DDAG |
719 | |
720 | test_migrate_end(from, to, false); | |
ea0c6d62 DDAG |
721 | } |
722 | ||
2884100c JQ |
723 | static void test_precopy_unix(void) |
724 | { | |
725 | char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs); | |
726 | QTestState *from, *to; | |
727 | ||
5fd4a9c9 DDAG |
728 | if (test_migrate_start(&from, &to, uri, false)) { |
729 | return; | |
730 | } | |
2884100c JQ |
731 | |
732 | /* We want to pick a speed slow enough that the test completes | |
733 | * quickly, but that it doesn't complete precopy even on a slow | |
734 | * machine, so also set the downtime. | |
735 | */ | |
736 | /* 1 ms should make it not converge*/ | |
737 | migrate_set_parameter(from, "downtime-limit", "1"); | |
738 | /* 1GB/s */ | |
739 | migrate_set_parameter(from, "max-bandwidth", "1000000000"); | |
740 | ||
741 | /* Wait for the first serial output from the source */ | |
742 | wait_for_serial("src_serial"); | |
743 | ||
7e1d7427 | 744 | migrate(from, uri, NULL); |
2884100c JQ |
745 | |
746 | wait_for_migration_pass(from); | |
747 | ||
748 | /* 300 ms should converge */ | |
749 | migrate_set_parameter(from, "downtime-limit", "300"); | |
750 | ||
751 | if (!got_stop) { | |
752 | qtest_qmp_eventwait(from, "STOP"); | |
753 | } | |
754 | ||
755 | qtest_qmp_eventwait(to, "RESUME"); | |
756 | ||
757 | wait_for_serial("dest_serial"); | |
758 | wait_for_migration_complete(from); | |
759 | ||
760 | test_migrate_end(from, to, true); | |
761 | g_free(uri); | |
762 | } | |
763 | ||
ea0c6d62 DDAG |
764 | int main(int argc, char **argv) |
765 | { | |
2656bfd9 | 766 | char template[] = "/tmp/migration-test-XXXXXX"; |
ea0c6d62 DDAG |
767 | int ret; |
768 | ||
769 | g_test_init(&argc, &argv, NULL); | |
770 | ||
771 | if (!ufd_version_check()) { | |
772 | return 0; | |
773 | } | |
774 | ||
775 | tmpfs = mkdtemp(template); | |
776 | if (!tmpfs) { | |
777 | g_test_message("mkdtemp on path (%s): %s\n", template, strerror(errno)); | |
778 | } | |
779 | g_assert(tmpfs); | |
780 | ||
781 | module_call_init(MODULE_INIT_QOM); | |
782 | ||
2884100c | 783 | qtest_add_func("/migration/postcopy/unix", test_postcopy); |
d5f49640 | 784 | qtest_add_func("/migration/postcopy/recovery", test_postcopy_recovery); |
4c27486d | 785 | qtest_add_func("/migration/deprecated", test_deprecated); |
2c9bb297 | 786 | qtest_add_func("/migration/bad_dest", test_baddest); |
2884100c | 787 | qtest_add_func("/migration/precopy/unix", test_precopy_unix); |
ea0c6d62 DDAG |
788 | |
789 | ret = g_test_run(); | |
790 | ||
791 | g_assert_cmpint(ret, ==, 0); | |
792 | ||
793 | ret = rmdir(tmpfs); | |
794 | if (ret != 0) { | |
795 | g_test_message("unable to rmdir: path (%s): %s\n", | |
796 | tmpfs, strerror(errno)); | |
797 | } | |
798 | ||
799 | return ret; | |
800 | } |