cirrus: fix off-by-one in cirrus_bitblt_rop_bkwd_transp_*_16
[qemu.git] / tests / vhost-user-test.c
1 /*
2 * QTest testcase for the vhost-user
3 *
4 * Copyright (c) 2014 Virtual Open Systems Sarl.
5 *
6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
7 * See the COPYING file in the top-level directory.
8 *
9 */
10
11 #include "qemu/osdep.h"
12
13 #include "libqtest.h"
14 #include "qapi/error.h"
15 #include "qemu/config-file.h"
16 #include "qemu/option.h"
17 #include "qemu/range.h"
18 #include "qemu/sockets.h"
19 #include "sysemu/char.h"
20 #include "sysemu/sysemu.h"
21 #include "libqos/libqos.h"
22 #include "libqos/pci-pc.h"
23 #include "libqos/virtio-pci.h"
24 #include "qapi/error.h"
25
26 #include "libqos/malloc-pc.h"
27 #include "hw/virtio/virtio-net.h"
28
29 #include <linux/vhost.h>
30 #include <linux/virtio_ids.h>
31 #include <linux/virtio_net.h>
32 #include <sys/vfs.h>
33
34 /* GLIB version compatibility flags */
35 #if !GLIB_CHECK_VERSION(2, 26, 0)
36 #define G_TIME_SPAN_SECOND (G_GINT64_CONSTANT(1000000))
37 #endif
38
39 #if GLIB_CHECK_VERSION(2, 28, 0)
40 #define HAVE_MONOTONIC_TIME
41 #endif
42
43 #define QEMU_CMD_MEM " -m %d -object memory-backend-file,id=mem,size=%dM,"\
44 "mem-path=%s,share=on -numa node,memdev=mem"
45 #define QEMU_CMD_CHR " -chardev socket,id=%s,path=%s%s"
46 #define QEMU_CMD_NETDEV " -netdev vhost-user,id=net0,chardev=%s,vhostforce"
47 #define QEMU_CMD_NET " -device virtio-net-pci,netdev=net0"
48
49 #define QEMU_CMD QEMU_CMD_MEM QEMU_CMD_CHR \
50 QEMU_CMD_NETDEV QEMU_CMD_NET
51
52 #define HUGETLBFS_MAGIC 0x958458f6
53
54 /*********** FROM hw/virtio/vhost-user.c *************************************/
55
56 #define VHOST_MEMORY_MAX_NREGIONS 8
57
58 #define VHOST_USER_F_PROTOCOL_FEATURES 30
59 #define VHOST_USER_PROTOCOL_F_MQ 0
60 #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1
61
62 #define VHOST_LOG_PAGE 0x1000
63
64 typedef enum VhostUserRequest {
65 VHOST_USER_NONE = 0,
66 VHOST_USER_GET_FEATURES = 1,
67 VHOST_USER_SET_FEATURES = 2,
68 VHOST_USER_SET_OWNER = 3,
69 VHOST_USER_RESET_OWNER = 4,
70 VHOST_USER_SET_MEM_TABLE = 5,
71 VHOST_USER_SET_LOG_BASE = 6,
72 VHOST_USER_SET_LOG_FD = 7,
73 VHOST_USER_SET_VRING_NUM = 8,
74 VHOST_USER_SET_VRING_ADDR = 9,
75 VHOST_USER_SET_VRING_BASE = 10,
76 VHOST_USER_GET_VRING_BASE = 11,
77 VHOST_USER_SET_VRING_KICK = 12,
78 VHOST_USER_SET_VRING_CALL = 13,
79 VHOST_USER_SET_VRING_ERR = 14,
80 VHOST_USER_GET_PROTOCOL_FEATURES = 15,
81 VHOST_USER_SET_PROTOCOL_FEATURES = 16,
82 VHOST_USER_GET_QUEUE_NUM = 17,
83 VHOST_USER_SET_VRING_ENABLE = 18,
84 VHOST_USER_MAX
85 } VhostUserRequest;
86
87 typedef struct VhostUserMemoryRegion {
88 uint64_t guest_phys_addr;
89 uint64_t memory_size;
90 uint64_t userspace_addr;
91 uint64_t mmap_offset;
92 } VhostUserMemoryRegion;
93
94 typedef struct VhostUserMemory {
95 uint32_t nregions;
96 uint32_t padding;
97 VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS];
98 } VhostUserMemory;
99
100 typedef struct VhostUserLog {
101 uint64_t mmap_size;
102 uint64_t mmap_offset;
103 } VhostUserLog;
104
105 typedef struct VhostUserMsg {
106 VhostUserRequest request;
107
108 #define VHOST_USER_VERSION_MASK (0x3)
109 #define VHOST_USER_REPLY_MASK (0x1<<2)
110 uint32_t flags;
111 uint32_t size; /* the following payload size */
112 union {
113 #define VHOST_USER_VRING_IDX_MASK (0xff)
114 #define VHOST_USER_VRING_NOFD_MASK (0x1<<8)
115 uint64_t u64;
116 struct vhost_vring_state state;
117 struct vhost_vring_addr addr;
118 VhostUserMemory memory;
119 VhostUserLog log;
120 } payload;
121 } QEMU_PACKED VhostUserMsg;
122
123 static VhostUserMsg m __attribute__ ((unused));
124 #define VHOST_USER_HDR_SIZE (sizeof(m.request) \
125 + sizeof(m.flags) \
126 + sizeof(m.size))
127
128 #define VHOST_USER_PAYLOAD_SIZE (sizeof(m) - VHOST_USER_HDR_SIZE)
129
130 /* The version of the protocol we support */
131 #define VHOST_USER_VERSION (0x1)
132 /*****************************************************************************/
133
134 enum {
135 TEST_FLAGS_OK,
136 TEST_FLAGS_DISCONNECT,
137 TEST_FLAGS_BAD,
138 TEST_FLAGS_END,
139 };
140
141 typedef struct TestServer {
142 QPCIBus *bus;
143 gchar *socket_path;
144 gchar *mig_path;
145 gchar *chr_name;
146 CharBackend chr;
147 int fds_num;
148 int fds[VHOST_MEMORY_MAX_NREGIONS];
149 VhostUserMemory memory;
150 CompatGMutex data_mutex;
151 CompatGCond data_cond;
152 int log_fd;
153 uint64_t rings;
154 bool test_fail;
155 int test_flags;
156 int queues;
157 } TestServer;
158
159 static const char *tmpfs;
160 static const char *root;
161
162 static void init_virtio_dev(TestServer *s)
163 {
164 QVirtioPCIDevice *dev;
165 uint32_t features;
166
167 s->bus = qpci_init_pc(NULL);
168 g_assert_nonnull(s->bus);
169
170 dev = qvirtio_pci_device_find(s->bus, VIRTIO_ID_NET);
171 g_assert_nonnull(dev);
172
173 qvirtio_pci_device_enable(dev);
174 qvirtio_reset(&dev->vdev);
175 qvirtio_set_acknowledge(&dev->vdev);
176 qvirtio_set_driver(&dev->vdev);
177
178 features = qvirtio_get_features(&dev->vdev);
179 features = features & VIRTIO_NET_F_MAC;
180 qvirtio_set_features(&dev->vdev, features);
181
182 qvirtio_set_driver_ok(&dev->vdev);
183 qvirtio_pci_device_free(dev);
184 }
185
186 static void wait_for_fds(TestServer *s)
187 {
188 gint64 end_time;
189
190 g_mutex_lock(&s->data_mutex);
191
192 end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
193 while (!s->fds_num) {
194 if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) {
195 /* timeout has passed */
196 g_assert(s->fds_num);
197 break;
198 }
199 }
200
201 /* check for sanity */
202 g_assert_cmpint(s->fds_num, >, 0);
203 g_assert_cmpint(s->fds_num, ==, s->memory.nregions);
204
205 g_mutex_unlock(&s->data_mutex);
206 }
207
208 static void read_guest_mem(const void *data)
209 {
210 TestServer *s = (void *)data;
211 uint32_t *guest_mem;
212 int i, j;
213 size_t size;
214
215 wait_for_fds(s);
216
217 g_mutex_lock(&s->data_mutex);
218
219 /* iterate all regions */
220 for (i = 0; i < s->fds_num; i++) {
221
222 /* We'll check only the region statring at 0x0*/
223 if (s->memory.regions[i].guest_phys_addr != 0x0) {
224 continue;
225 }
226
227 g_assert_cmpint(s->memory.regions[i].memory_size, >, 1024);
228
229 size = s->memory.regions[i].memory_size +
230 s->memory.regions[i].mmap_offset;
231
232 guest_mem = mmap(0, size, PROT_READ | PROT_WRITE,
233 MAP_SHARED, s->fds[i], 0);
234
235 g_assert(guest_mem != MAP_FAILED);
236 guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem));
237
238 for (j = 0; j < 256; j++) {
239 uint32_t a = readl(s->memory.regions[i].guest_phys_addr + j*4);
240 uint32_t b = guest_mem[j];
241
242 g_assert_cmpint(a, ==, b);
243 }
244
245 munmap(guest_mem, s->memory.regions[i].memory_size);
246 }
247
248 g_mutex_unlock(&s->data_mutex);
249 }
250
251 static void *thread_function(void *data)
252 {
253 GMainLoop *loop = data;
254 g_main_loop_run(loop);
255 return NULL;
256 }
257
258 static int chr_can_read(void *opaque)
259 {
260 return VHOST_USER_HDR_SIZE;
261 }
262
263 static void chr_read(void *opaque, const uint8_t *buf, int size)
264 {
265 TestServer *s = opaque;
266 CharBackend *chr = &s->chr;
267 VhostUserMsg msg;
268 uint8_t *p = (uint8_t *) &msg;
269 int fd;
270
271 if (s->test_fail) {
272 qemu_chr_fe_disconnect(chr);
273 /* now switch to non-failure */
274 s->test_fail = false;
275 }
276
277 if (size != VHOST_USER_HDR_SIZE) {
278 g_test_message("Wrong message size received %d\n", size);
279 return;
280 }
281
282 g_mutex_lock(&s->data_mutex);
283 memcpy(p, buf, VHOST_USER_HDR_SIZE);
284
285 if (msg.size) {
286 p += VHOST_USER_HDR_SIZE;
287 size = qemu_chr_fe_read_all(chr, p, msg.size);
288 if (size != msg.size) {
289 g_test_message("Wrong message size received %d != %d\n",
290 size, msg.size);
291 return;
292 }
293 }
294
295 switch (msg.request) {
296 case VHOST_USER_GET_FEATURES:
297 /* send back features to qemu */
298 msg.flags |= VHOST_USER_REPLY_MASK;
299 msg.size = sizeof(m.payload.u64);
300 msg.payload.u64 = 0x1ULL << VHOST_F_LOG_ALL |
301 0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES;
302 if (s->queues > 1) {
303 msg.payload.u64 |= 0x1ULL << VIRTIO_NET_F_MQ;
304 }
305 if (s->test_flags >= TEST_FLAGS_BAD) {
306 msg.payload.u64 = 0;
307 s->test_flags = TEST_FLAGS_END;
308 }
309 p = (uint8_t *) &msg;
310 qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size);
311 break;
312
313 case VHOST_USER_SET_FEATURES:
314 g_assert_cmpint(msg.payload.u64 & (0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES),
315 !=, 0ULL);
316 if (s->test_flags == TEST_FLAGS_DISCONNECT) {
317 qemu_chr_fe_disconnect(chr);
318 s->test_flags = TEST_FLAGS_BAD;
319 }
320 break;
321
322 case VHOST_USER_GET_PROTOCOL_FEATURES:
323 /* send back features to qemu */
324 msg.flags |= VHOST_USER_REPLY_MASK;
325 msg.size = sizeof(m.payload.u64);
326 msg.payload.u64 = 1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD;
327 if (s->queues > 1) {
328 msg.payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_MQ;
329 }
330 p = (uint8_t *) &msg;
331 qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size);
332 break;
333
334 case VHOST_USER_GET_VRING_BASE:
335 /* send back vring base to qemu */
336 msg.flags |= VHOST_USER_REPLY_MASK;
337 msg.size = sizeof(m.payload.state);
338 msg.payload.state.num = 0;
339 p = (uint8_t *) &msg;
340 qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size);
341
342 assert(msg.payload.state.index < s->queues * 2);
343 s->rings &= ~(0x1ULL << msg.payload.state.index);
344 break;
345
346 case VHOST_USER_SET_MEM_TABLE:
347 /* received the mem table */
348 memcpy(&s->memory, &msg.payload.memory, sizeof(msg.payload.memory));
349 s->fds_num = qemu_chr_fe_get_msgfds(chr, s->fds,
350 G_N_ELEMENTS(s->fds));
351
352 /* signal the test that it can continue */
353 g_cond_signal(&s->data_cond);
354 break;
355
356 case VHOST_USER_SET_VRING_KICK:
357 case VHOST_USER_SET_VRING_CALL:
358 /* consume the fd */
359 qemu_chr_fe_get_msgfds(chr, &fd, 1);
360 /*
361 * This is a non-blocking eventfd.
362 * The receive function forces it to be blocking,
363 * so revert it back to non-blocking.
364 */
365 qemu_set_nonblock(fd);
366 break;
367
368 case VHOST_USER_SET_LOG_BASE:
369 if (s->log_fd != -1) {
370 close(s->log_fd);
371 s->log_fd = -1;
372 }
373 qemu_chr_fe_get_msgfds(chr, &s->log_fd, 1);
374 msg.flags |= VHOST_USER_REPLY_MASK;
375 msg.size = 0;
376 p = (uint8_t *) &msg;
377 qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE);
378
379 g_cond_signal(&s->data_cond);
380 break;
381
382 case VHOST_USER_SET_VRING_BASE:
383 assert(msg.payload.state.index < s->queues * 2);
384 s->rings |= 0x1ULL << msg.payload.state.index;
385 break;
386
387 case VHOST_USER_GET_QUEUE_NUM:
388 msg.flags |= VHOST_USER_REPLY_MASK;
389 msg.size = sizeof(m.payload.u64);
390 msg.payload.u64 = s->queues;
391 p = (uint8_t *) &msg;
392 qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size);
393 break;
394
395 default:
396 break;
397 }
398
399 g_mutex_unlock(&s->data_mutex);
400 }
401
402 static const char *init_hugepagefs(const char *path)
403 {
404 struct statfs fs;
405 int ret;
406
407 if (access(path, R_OK | W_OK | X_OK)) {
408 g_test_message("access on path (%s): %s\n", path, strerror(errno));
409 return NULL;
410 }
411
412 do {
413 ret = statfs(path, &fs);
414 } while (ret != 0 && errno == EINTR);
415
416 if (ret != 0) {
417 g_test_message("statfs on path (%s): %s\n", path, strerror(errno));
418 return NULL;
419 }
420
421 if (fs.f_type != HUGETLBFS_MAGIC) {
422 g_test_message("Warning: path not on HugeTLBFS: %s\n", path);
423 return NULL;
424 }
425
426 return path;
427 }
428
429 static TestServer *test_server_new(const gchar *name)
430 {
431 TestServer *server = g_new0(TestServer, 1);
432
433 server->socket_path = g_strdup_printf("%s/%s.sock", tmpfs, name);
434 server->mig_path = g_strdup_printf("%s/%s.mig", tmpfs, name);
435 server->chr_name = g_strdup_printf("chr-%s", name);
436
437 g_mutex_init(&server->data_mutex);
438 g_cond_init(&server->data_cond);
439
440 server->log_fd = -1;
441 server->queues = 1;
442
443 return server;
444 }
445
446 static void chr_event(void *opaque, int event)
447 {
448 TestServer *s = opaque;
449
450 if (s->test_flags == TEST_FLAGS_END &&
451 event == CHR_EVENT_CLOSED) {
452 s->test_flags = TEST_FLAGS_OK;
453 }
454 }
455
456 static void test_server_create_chr(TestServer *server, const gchar *opt)
457 {
458 gchar *chr_path;
459 Chardev *chr;
460
461 chr_path = g_strdup_printf("unix:%s%s", server->socket_path, opt);
462 chr = qemu_chr_new(server->chr_name, chr_path);
463 g_free(chr_path);
464
465 qemu_chr_fe_init(&server->chr, chr, &error_abort);
466 qemu_chr_fe_set_handlers(&server->chr, chr_can_read, chr_read,
467 chr_event, server, NULL, true);
468 }
469
470 static void test_server_listen(TestServer *server)
471 {
472 test_server_create_chr(server, ",server,nowait");
473 }
474
475 static inline void test_server_connect(TestServer *server)
476 {
477 test_server_create_chr(server, ",reconnect=1");
478 }
479
480 #define GET_QEMU_CMD(s) \
481 g_strdup_printf(QEMU_CMD, 512, 512, (root), (s)->chr_name, \
482 (s)->socket_path, "", (s)->chr_name)
483
484 #define GET_QEMU_CMDE(s, mem, chr_opts, extra, ...) \
485 g_strdup_printf(QEMU_CMD extra, (mem), (mem), (root), (s)->chr_name, \
486 (s)->socket_path, (chr_opts), (s)->chr_name, ##__VA_ARGS__)
487
488 static gboolean _test_server_free(TestServer *server)
489 {
490 int i;
491 Chardev *chr = qemu_chr_fe_get_driver(&server->chr);
492
493 qemu_chr_fe_deinit(&server->chr);
494 qemu_chr_delete(chr);
495
496 for (i = 0; i < server->fds_num; i++) {
497 close(server->fds[i]);
498 }
499
500 if (server->log_fd != -1) {
501 close(server->log_fd);
502 }
503
504 unlink(server->socket_path);
505 g_free(server->socket_path);
506
507 unlink(server->mig_path);
508 g_free(server->mig_path);
509
510 g_free(server->chr_name);
511 qpci_free_pc(server->bus);
512
513 g_free(server);
514
515 return FALSE;
516 }
517
518 static void test_server_free(TestServer *server)
519 {
520 g_idle_add((GSourceFunc)_test_server_free, server);
521 }
522
523 static void wait_for_log_fd(TestServer *s)
524 {
525 gint64 end_time;
526
527 g_mutex_lock(&s->data_mutex);
528 end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
529 while (s->log_fd == -1) {
530 if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) {
531 /* timeout has passed */
532 g_assert(s->log_fd != -1);
533 break;
534 }
535 }
536
537 g_mutex_unlock(&s->data_mutex);
538 }
539
540 static void write_guest_mem(TestServer *s, uint32_t seed)
541 {
542 uint32_t *guest_mem;
543 int i, j;
544 size_t size;
545
546 wait_for_fds(s);
547
548 /* iterate all regions */
549 for (i = 0; i < s->fds_num; i++) {
550
551 /* We'll write only the region statring at 0x0 */
552 if (s->memory.regions[i].guest_phys_addr != 0x0) {
553 continue;
554 }
555
556 g_assert_cmpint(s->memory.regions[i].memory_size, >, 1024);
557
558 size = s->memory.regions[i].memory_size +
559 s->memory.regions[i].mmap_offset;
560
561 guest_mem = mmap(0, size, PROT_READ | PROT_WRITE,
562 MAP_SHARED, s->fds[i], 0);
563
564 g_assert(guest_mem != MAP_FAILED);
565 guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem));
566
567 for (j = 0; j < 256; j++) {
568 guest_mem[j] = seed + j;
569 }
570
571 munmap(guest_mem, s->memory.regions[i].memory_size);
572 break;
573 }
574 }
575
576 static guint64 get_log_size(TestServer *s)
577 {
578 guint64 log_size = 0;
579 int i;
580
581 for (i = 0; i < s->memory.nregions; ++i) {
582 VhostUserMemoryRegion *reg = &s->memory.regions[i];
583 guint64 last = range_get_last(reg->guest_phys_addr,
584 reg->memory_size);
585 log_size = MAX(log_size, last / (8 * VHOST_LOG_PAGE) + 1);
586 }
587
588 return log_size;
589 }
590
591 typedef struct TestMigrateSource {
592 GSource source;
593 TestServer *src;
594 TestServer *dest;
595 } TestMigrateSource;
596
597 static gboolean
598 test_migrate_source_check(GSource *source)
599 {
600 TestMigrateSource *t = (TestMigrateSource *)source;
601 gboolean overlap = t->src->rings && t->dest->rings;
602
603 g_assert(!overlap);
604
605 return FALSE;
606 }
607
608 #if !GLIB_CHECK_VERSION(2,36,0)
609 /* this callback is unnecessary with glib >2.36, the default
610 * prepare for the source does the same */
611 static gboolean
612 test_migrate_source_prepare(GSource *source, gint *timeout)
613 {
614 *timeout = -1;
615 return FALSE;
616 }
617 #endif
618
619 GSourceFuncs test_migrate_source_funcs = {
620 #if !GLIB_CHECK_VERSION(2,36,0)
621 .prepare = test_migrate_source_prepare,
622 #endif
623 .check = test_migrate_source_check,
624 };
625
626 static void test_migrate(void)
627 {
628 TestServer *s = test_server_new("src");
629 TestServer *dest = test_server_new("dest");
630 char *uri = g_strdup_printf("%s%s", "unix:", dest->mig_path);
631 QTestState *global = global_qtest, *from, *to;
632 GSource *source;
633 gchar *cmd;
634 QDict *rsp;
635 guint8 *log;
636 guint64 size;
637
638 test_server_listen(s);
639 test_server_listen(dest);
640
641 cmd = GET_QEMU_CMDE(s, 2, "", "");
642 from = qtest_start(cmd);
643 g_free(cmd);
644
645 init_virtio_dev(s);
646 wait_for_fds(s);
647 size = get_log_size(s);
648 g_assert_cmpint(size, ==, (2 * 1024 * 1024) / (VHOST_LOG_PAGE * 8));
649
650 cmd = GET_QEMU_CMDE(dest, 2, "", " -incoming %s", uri);
651 to = qtest_init(cmd);
652 g_free(cmd);
653
654 source = g_source_new(&test_migrate_source_funcs,
655 sizeof(TestMigrateSource));
656 ((TestMigrateSource *)source)->src = s;
657 ((TestMigrateSource *)source)->dest = dest;
658 g_source_attach(source, NULL);
659
660 /* slow down migration to have time to fiddle with log */
661 /* TODO: qtest could learn to break on some places */
662 rsp = qmp("{ 'execute': 'migrate_set_speed',"
663 "'arguments': { 'value': 10 } }");
664 g_assert(qdict_haskey(rsp, "return"));
665 QDECREF(rsp);
666
667 cmd = g_strdup_printf("{ 'execute': 'migrate',"
668 "'arguments': { 'uri': '%s' } }",
669 uri);
670 rsp = qmp(cmd);
671 g_free(cmd);
672 g_assert(qdict_haskey(rsp, "return"));
673 QDECREF(rsp);
674
675 wait_for_log_fd(s);
676
677 log = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, s->log_fd, 0);
678 g_assert(log != MAP_FAILED);
679
680 /* modify first page */
681 write_guest_mem(s, 0x42);
682 log[0] = 1;
683 munmap(log, size);
684
685 /* speed things up */
686 rsp = qmp("{ 'execute': 'migrate_set_speed',"
687 "'arguments': { 'value': 0 } }");
688 g_assert(qdict_haskey(rsp, "return"));
689 QDECREF(rsp);
690
691 qmp_eventwait("STOP");
692
693 global_qtest = to;
694 qmp_eventwait("RESUME");
695
696 read_guest_mem(dest);
697
698 g_source_destroy(source);
699 g_source_unref(source);
700
701 qtest_quit(to);
702 test_server_free(dest);
703 qtest_quit(from);
704 test_server_free(s);
705 g_free(uri);
706
707 global_qtest = global;
708 }
709
710 static void wait_for_rings_started(TestServer *s, size_t count)
711 {
712 gint64 end_time;
713
714 g_mutex_lock(&s->data_mutex);
715 end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
716 while (ctpop64(s->rings) != count) {
717 if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) {
718 /* timeout has passed */
719 g_assert_cmpint(ctpop64(s->rings), ==, count);
720 break;
721 }
722 }
723
724 g_mutex_unlock(&s->data_mutex);
725 }
726
727 #ifdef CONFIG_HAS_GLIB_SUBPROCESS_TESTS
728 static gboolean
729 reconnect_cb(gpointer user_data)
730 {
731 TestServer *s = user_data;
732
733 qemu_chr_fe_disconnect(&s->chr);
734
735 return FALSE;
736 }
737
738 static gpointer
739 connect_thread(gpointer data)
740 {
741 TestServer *s = data;
742
743 /* wait for qemu to start before first try, to avoid extra warnings */
744 g_usleep(G_USEC_PER_SEC);
745 test_server_connect(s);
746
747 return NULL;
748 }
749
750 static void test_reconnect_subprocess(void)
751 {
752 TestServer *s = test_server_new("reconnect");
753 char *cmd;
754
755 g_thread_new("connect", connect_thread, s);
756 cmd = GET_QEMU_CMDE(s, 2, ",server", "");
757 qtest_start(cmd);
758 g_free(cmd);
759
760 init_virtio_dev(s);
761 wait_for_fds(s);
762 wait_for_rings_started(s, 2);
763
764 /* reconnect */
765 s->fds_num = 0;
766 s->rings = 0;
767 g_idle_add(reconnect_cb, s);
768 wait_for_fds(s);
769 wait_for_rings_started(s, 2);
770
771 qtest_end();
772 test_server_free(s);
773 return;
774 }
775
776 static void test_reconnect(void)
777 {
778 gchar *path = g_strdup_printf("/%s/vhost-user/reconnect/subprocess",
779 qtest_get_arch());
780 g_test_trap_subprocess(path, 0, 0);
781 g_test_trap_assert_passed();
782 g_free(path);
783 }
784
785 static void test_connect_fail_subprocess(void)
786 {
787 TestServer *s = test_server_new("connect-fail");
788 char *cmd;
789
790 s->test_fail = true;
791 g_thread_new("connect", connect_thread, s);
792 cmd = GET_QEMU_CMDE(s, 2, ",server", "");
793 qtest_start(cmd);
794 g_free(cmd);
795
796 init_virtio_dev(s);
797 wait_for_fds(s);
798 wait_for_rings_started(s, 2);
799
800 qtest_end();
801 test_server_free(s);
802 }
803
804 static void test_connect_fail(void)
805 {
806 gchar *path = g_strdup_printf("/%s/vhost-user/connect-fail/subprocess",
807 qtest_get_arch());
808 g_test_trap_subprocess(path, 0, 0);
809 g_test_trap_assert_passed();
810 g_free(path);
811 }
812
813 static void test_flags_mismatch_subprocess(void)
814 {
815 TestServer *s = test_server_new("flags-mismatch");
816 char *cmd;
817
818 s->test_flags = TEST_FLAGS_DISCONNECT;
819 g_thread_new("connect", connect_thread, s);
820 cmd = GET_QEMU_CMDE(s, 2, ",server", "");
821 qtest_start(cmd);
822 g_free(cmd);
823
824 init_virtio_dev(s);
825 wait_for_fds(s);
826 wait_for_rings_started(s, 2);
827
828 qtest_end();
829 test_server_free(s);
830 }
831
832 static void test_flags_mismatch(void)
833 {
834 gchar *path = g_strdup_printf("/%s/vhost-user/flags-mismatch/subprocess",
835 qtest_get_arch());
836 g_test_trap_subprocess(path, 0, 0);
837 g_test_trap_assert_passed();
838 g_free(path);
839 }
840
841 #endif
842
843 static QVirtioPCIDevice *virtio_net_pci_init(QPCIBus *bus, int slot)
844 {
845 QVirtioPCIDevice *dev;
846
847 dev = qvirtio_pci_device_find(bus, VIRTIO_ID_NET);
848 g_assert(dev != NULL);
849 g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_NET);
850
851 qvirtio_pci_device_enable(dev);
852 qvirtio_reset(&dev->vdev);
853 qvirtio_set_acknowledge(&dev->vdev);
854 qvirtio_set_driver(&dev->vdev);
855
856 return dev;
857 }
858
859 static void driver_init(QVirtioDevice *dev)
860 {
861 uint32_t features;
862
863 features = qvirtio_get_features(dev);
864 features = features & ~(QVIRTIO_F_BAD_FEATURE |
865 (1u << VIRTIO_RING_F_INDIRECT_DESC) |
866 (1u << VIRTIO_RING_F_EVENT_IDX));
867 qvirtio_set_features(dev, features);
868
869 qvirtio_set_driver_ok(dev);
870 }
871
872 #define PCI_SLOT 0x04
873
874 static void test_multiqueue(void)
875 {
876 const int queues = 2;
877 TestServer *s = test_server_new("mq");
878 QVirtioPCIDevice *dev;
879 QPCIBus *bus;
880 QVirtQueuePCI *vq[queues * 2];
881 QGuestAllocator *alloc;
882 char *cmd;
883 int i;
884
885 s->queues = queues;
886 test_server_listen(s);
887
888 cmd = g_strdup_printf(QEMU_CMD_MEM QEMU_CMD_CHR QEMU_CMD_NETDEV ",queues=%d "
889 "-device virtio-net-pci,netdev=net0,mq=on,vectors=%d",
890 512, 512, root, s->chr_name,
891 s->socket_path, "", s->chr_name,
892 queues, queues * 2 + 2);
893 qtest_start(cmd);
894 g_free(cmd);
895
896 bus = qpci_init_pc(NULL);
897 dev = virtio_net_pci_init(bus, PCI_SLOT);
898
899 alloc = pc_alloc_init();
900 for (i = 0; i < queues * 2; i++) {
901 vq[i] = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, alloc, i);
902 }
903
904 driver_init(&dev->vdev);
905 wait_for_rings_started(s, queues * 2);
906
907 /* End test */
908 for (i = 0; i < queues * 2; i++) {
909 qvirtqueue_cleanup(dev->vdev.bus, &vq[i]->vq, alloc);
910 }
911 pc_alloc_uninit(alloc);
912 qvirtio_pci_device_disable(dev);
913 g_free(dev->pdev);
914 g_free(dev);
915 qpci_free_pc(bus);
916 qtest_end();
917
918 test_server_free(s);
919 }
920
921 int main(int argc, char **argv)
922 {
923 QTestState *s = NULL;
924 TestServer *server = NULL;
925 const char *hugefs;
926 char *qemu_cmd = NULL;
927 int ret;
928 char template[] = "/tmp/vhost-test-XXXXXX";
929 GMainLoop *loop;
930 GThread *thread;
931
932 g_test_init(&argc, &argv, NULL);
933
934 module_call_init(MODULE_INIT_QOM);
935 qemu_add_opts(&qemu_chardev_opts);
936
937 tmpfs = mkdtemp(template);
938 if (!tmpfs) {
939 g_test_message("mkdtemp on path (%s): %s\n", template, strerror(errno));
940 }
941 g_assert(tmpfs);
942
943 hugefs = getenv("QTEST_HUGETLBFS_PATH");
944 if (hugefs) {
945 root = init_hugepagefs(hugefs);
946 g_assert(root);
947 } else {
948 root = tmpfs;
949 }
950
951 server = test_server_new("test");
952 test_server_listen(server);
953
954 loop = g_main_loop_new(NULL, FALSE);
955 /* run the main loop thread so the chardev may operate */
956 thread = g_thread_new(NULL, thread_function, loop);
957
958 qemu_cmd = GET_QEMU_CMD(server);
959
960 s = qtest_start(qemu_cmd);
961 g_free(qemu_cmd);
962 init_virtio_dev(server);
963
964 qtest_add_data_func("/vhost-user/read-guest-mem", server, read_guest_mem);
965 qtest_add_func("/vhost-user/migrate", test_migrate);
966 qtest_add_func("/vhost-user/multiqueue", test_multiqueue);
967 #ifdef CONFIG_HAS_GLIB_SUBPROCESS_TESTS
968 qtest_add_func("/vhost-user/reconnect/subprocess",
969 test_reconnect_subprocess);
970 qtest_add_func("/vhost-user/reconnect", test_reconnect);
971 qtest_add_func("/vhost-user/connect-fail/subprocess",
972 test_connect_fail_subprocess);
973 qtest_add_func("/vhost-user/connect-fail", test_connect_fail);
974 qtest_add_func("/vhost-user/flags-mismatch/subprocess",
975 test_flags_mismatch_subprocess);
976 qtest_add_func("/vhost-user/flags-mismatch", test_flags_mismatch);
977 #endif
978
979 ret = g_test_run();
980
981 if (s) {
982 qtest_quit(s);
983 }
984
985 /* cleanup */
986 test_server_free(server);
987
988 /* finish the helper thread and dispatch pending sources */
989 g_main_loop_quit(loop);
990 g_thread_join(thread);
991 while (g_main_context_pending(NULL)) {
992 g_main_context_iteration (NULL, TRUE);
993 }
994 g_main_loop_unref(loop);
995
996 ret = rmdir(tmpfs);
997 if (ret != 0) {
998 g_test_message("unable to rmdir: path (%s): %s\n",
999 tmpfs, strerror(errno));
1000 }
1001 g_assert_cmpint(ret, ==, 0);
1002
1003 return ret;
1004 }