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Commit | Line | Data |
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a77e6b14 NN |
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 | ||
681c28a3 | 11 | #include "qemu/osdep.h" |
bd95939f | 12 | |
a77e6b14 NN |
13 | #include "libqtest.h" |
14 | #include "qemu/option.h" | |
b1819747 | 15 | #include "qemu/range.h" |
a77e6b14 NN |
16 | #include "sysemu/char.h" |
17 | #include "sysemu/sysemu.h" | |
18 | ||
a77e6b14 | 19 | #include <linux/vhost.h> |
a77e6b14 NN |
20 | #include <sys/vfs.h> |
21 | #include <qemu/sockets.h> | |
22 | ||
30de46db GA |
23 | /* GLIB version compatibility flags */ |
24 | #if !GLIB_CHECK_VERSION(2, 26, 0) | |
25 | #define G_TIME_SPAN_SECOND (G_GINT64_CONSTANT(1000000)) | |
26 | #endif | |
27 | ||
28 | #if GLIB_CHECK_VERSION(2, 28, 0) | |
29 | #define HAVE_MONOTONIC_TIME | |
30 | #endif | |
31 | ||
a77e6b14 | 32 | #define QEMU_CMD_ACCEL " -machine accel=tcg" |
704b2168 | 33 | #define QEMU_CMD_MEM " -m %d -object memory-backend-file,id=mem,size=%dM,"\ |
a77e6b14 | 34 | "mem-path=%s,share=on -numa node,memdev=mem" |
4616e359 | 35 | #define QEMU_CMD_CHR " -chardev socket,id=%s,path=%s%s" |
704b2168 | 36 | #define QEMU_CMD_NETDEV " -netdev vhost-user,id=net0,chardev=%s,vhostforce" |
b5c6eaf1 | 37 | #define QEMU_CMD_NET " -device virtio-net-pci,netdev=net0,romfile=./pc-bios/pxe-virtio.rom" |
a77e6b14 NN |
38 | |
39 | #define QEMU_CMD QEMU_CMD_ACCEL QEMU_CMD_MEM QEMU_CMD_CHR \ | |
b5c6eaf1 | 40 | QEMU_CMD_NETDEV QEMU_CMD_NET |
a77e6b14 NN |
41 | |
42 | #define HUGETLBFS_MAGIC 0x958458f6 | |
43 | ||
44 | /*********** FROM hw/virtio/vhost-user.c *************************************/ | |
45 | ||
46 | #define VHOST_MEMORY_MAX_NREGIONS 8 | |
47 | ||
8a9b6b37 | 48 | #define VHOST_USER_F_PROTOCOL_FEATURES 30 |
b1819747 MAL |
49 | #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 |
50 | ||
51 | #define VHOST_LOG_PAGE 0x1000 | |
8a9b6b37 | 52 | |
a77e6b14 NN |
53 | typedef enum VhostUserRequest { |
54 | VHOST_USER_NONE = 0, | |
55 | VHOST_USER_GET_FEATURES = 1, | |
56 | VHOST_USER_SET_FEATURES = 2, | |
57 | VHOST_USER_SET_OWNER = 3, | |
60915dc4 | 58 | VHOST_USER_RESET_OWNER = 4, |
a77e6b14 NN |
59 | VHOST_USER_SET_MEM_TABLE = 5, |
60 | VHOST_USER_SET_LOG_BASE = 6, | |
61 | VHOST_USER_SET_LOG_FD = 7, | |
62 | VHOST_USER_SET_VRING_NUM = 8, | |
63 | VHOST_USER_SET_VRING_ADDR = 9, | |
64 | VHOST_USER_SET_VRING_BASE = 10, | |
65 | VHOST_USER_GET_VRING_BASE = 11, | |
66 | VHOST_USER_SET_VRING_KICK = 12, | |
67 | VHOST_USER_SET_VRING_CALL = 13, | |
68 | VHOST_USER_SET_VRING_ERR = 14, | |
8a9b6b37 MT |
69 | VHOST_USER_GET_PROTOCOL_FEATURES = 15, |
70 | VHOST_USER_SET_PROTOCOL_FEATURES = 16, | |
87656d50 | 71 | VHOST_USER_SET_VRING_ENABLE = 18, |
a77e6b14 NN |
72 | VHOST_USER_MAX |
73 | } VhostUserRequest; | |
74 | ||
75 | typedef struct VhostUserMemoryRegion { | |
76 | uint64_t guest_phys_addr; | |
77 | uint64_t memory_size; | |
78 | uint64_t userspace_addr; | |
d6970e3b | 79 | uint64_t mmap_offset; |
a77e6b14 NN |
80 | } VhostUserMemoryRegion; |
81 | ||
82 | typedef struct VhostUserMemory { | |
83 | uint32_t nregions; | |
84 | uint32_t padding; | |
85 | VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS]; | |
86 | } VhostUserMemory; | |
87 | ||
2b8819c6 VK |
88 | typedef struct VhostUserLog { |
89 | uint64_t mmap_size; | |
90 | uint64_t mmap_offset; | |
91 | } VhostUserLog; | |
92 | ||
a77e6b14 NN |
93 | typedef struct VhostUserMsg { |
94 | VhostUserRequest request; | |
95 | ||
96 | #define VHOST_USER_VERSION_MASK (0x3) | |
97 | #define VHOST_USER_REPLY_MASK (0x1<<2) | |
98 | uint32_t flags; | |
99 | uint32_t size; /* the following payload size */ | |
100 | union { | |
2b8819c6 VK |
101 | #define VHOST_USER_VRING_IDX_MASK (0xff) |
102 | #define VHOST_USER_VRING_NOFD_MASK (0x1<<8) | |
a77e6b14 NN |
103 | uint64_t u64; |
104 | struct vhost_vring_state state; | |
105 | struct vhost_vring_addr addr; | |
106 | VhostUserMemory memory; | |
2b8819c6 | 107 | VhostUserLog log; |
12ebf690 | 108 | } payload; |
a77e6b14 NN |
109 | } QEMU_PACKED VhostUserMsg; |
110 | ||
111 | static VhostUserMsg m __attribute__ ((unused)); | |
112 | #define VHOST_USER_HDR_SIZE (sizeof(m.request) \ | |
113 | + sizeof(m.flags) \ | |
114 | + sizeof(m.size)) | |
115 | ||
116 | #define VHOST_USER_PAYLOAD_SIZE (sizeof(m) - VHOST_USER_HDR_SIZE) | |
117 | ||
118 | /* The version of the protocol we support */ | |
119 | #define VHOST_USER_VERSION (0x1) | |
120 | /*****************************************************************************/ | |
121 | ||
ae31fb54 MAL |
122 | typedef struct TestServer { |
123 | gchar *socket_path; | |
a899b1ea | 124 | gchar *mig_path; |
ae31fb54 MAL |
125 | gchar *chr_name; |
126 | CharDriverState *chr; | |
127 | int fds_num; | |
128 | int fds[VHOST_MEMORY_MAX_NREGIONS]; | |
129 | VhostUserMemory memory; | |
130 | GMutex data_mutex; | |
131 | GCond data_cond; | |
b1819747 | 132 | int log_fd; |
d08e42a1 | 133 | uint64_t rings; |
ae31fb54 | 134 | } TestServer; |
bd95939f | 135 | |
ca06d9cc PB |
136 | #if !GLIB_CHECK_VERSION(2, 32, 0) |
137 | static gboolean g_cond_wait_until(CompatGCond cond, CompatGMutex mutex, | |
138 | gint64 end_time) | |
bd95939f NN |
139 | { |
140 | gboolean ret = FALSE; | |
ca06d9cc | 141 | end_time -= g_get_monotonic_time(); |
bd95939f NN |
142 | GTimeVal time = { end_time / G_TIME_SPAN_SECOND, |
143 | end_time % G_TIME_SPAN_SECOND }; | |
144 | ret = g_cond_timed_wait(cond, mutex, &time); | |
bd95939f NN |
145 | return ret; |
146 | } | |
bd95939f | 147 | #endif |
a77e6b14 | 148 | |
704b2168 MAL |
149 | static const char *tmpfs; |
150 | static const char *root; | |
151 | ||
ae31fb54 | 152 | static void wait_for_fds(TestServer *s) |
a77e6b14 | 153 | { |
a77e6b14 | 154 | gint64 end_time; |
a77e6b14 | 155 | |
ae31fb54 | 156 | g_mutex_lock(&s->data_mutex); |
a77e6b14 | 157 | |
ca06d9cc | 158 | end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; |
ae31fb54 MAL |
159 | while (!s->fds_num) { |
160 | if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) { | |
a77e6b14 | 161 | /* timeout has passed */ |
ae31fb54 | 162 | g_assert(s->fds_num); |
a77e6b14 NN |
163 | break; |
164 | } | |
165 | } | |
166 | ||
167 | /* check for sanity */ | |
ae31fb54 MAL |
168 | g_assert_cmpint(s->fds_num, >, 0); |
169 | g_assert_cmpint(s->fds_num, ==, s->memory.nregions); | |
a77e6b14 | 170 | |
ae31fb54 | 171 | g_mutex_unlock(&s->data_mutex); |
cf72b57f MAL |
172 | } |
173 | ||
041088c7 | 174 | static void read_guest_mem(const void *data) |
cf72b57f | 175 | { |
041088c7 | 176 | TestServer *s = (void *)data; |
cf72b57f MAL |
177 | uint32_t *guest_mem; |
178 | int i, j; | |
179 | size_t size; | |
180 | ||
ae31fb54 | 181 | wait_for_fds(s); |
cf72b57f | 182 | |
ae31fb54 | 183 | g_mutex_lock(&s->data_mutex); |
cf72b57f | 184 | |
a77e6b14 | 185 | /* iterate all regions */ |
ae31fb54 | 186 | for (i = 0; i < s->fds_num; i++) { |
a77e6b14 NN |
187 | |
188 | /* We'll check only the region statring at 0x0*/ | |
ae31fb54 | 189 | if (s->memory.regions[i].guest_phys_addr != 0x0) { |
a77e6b14 NN |
190 | continue; |
191 | } | |
192 | ||
ae31fb54 | 193 | g_assert_cmpint(s->memory.regions[i].memory_size, >, 1024); |
a77e6b14 | 194 | |
ae31fb54 MAL |
195 | size = s->memory.regions[i].memory_size + |
196 | s->memory.regions[i].mmap_offset; | |
d6970e3b NN |
197 | |
198 | guest_mem = mmap(0, size, PROT_READ | PROT_WRITE, | |
ae31fb54 | 199 | MAP_SHARED, s->fds[i], 0); |
d6970e3b NN |
200 | |
201 | g_assert(guest_mem != MAP_FAILED); | |
ae31fb54 | 202 | guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem)); |
a77e6b14 NN |
203 | |
204 | for (j = 0; j < 256; j++) { | |
ae31fb54 | 205 | uint32_t a = readl(s->memory.regions[i].guest_phys_addr + j*4); |
a77e6b14 NN |
206 | uint32_t b = guest_mem[j]; |
207 | ||
208 | g_assert_cmpint(a, ==, b); | |
209 | } | |
210 | ||
ae31fb54 | 211 | munmap(guest_mem, s->memory.regions[i].memory_size); |
a77e6b14 NN |
212 | } |
213 | ||
ae31fb54 | 214 | g_mutex_unlock(&s->data_mutex); |
a77e6b14 NN |
215 | } |
216 | ||
217 | static void *thread_function(void *data) | |
218 | { | |
9732baf6 | 219 | GMainLoop *loop = data; |
a77e6b14 NN |
220 | g_main_loop_run(loop); |
221 | return NULL; | |
222 | } | |
223 | ||
224 | static int chr_can_read(void *opaque) | |
225 | { | |
226 | return VHOST_USER_HDR_SIZE; | |
227 | } | |
228 | ||
229 | static void chr_read(void *opaque, const uint8_t *buf, int size) | |
230 | { | |
ae31fb54 MAL |
231 | TestServer *s = opaque; |
232 | CharDriverState *chr = s->chr; | |
a77e6b14 NN |
233 | VhostUserMsg msg; |
234 | uint8_t *p = (uint8_t *) &msg; | |
235 | int fd; | |
236 | ||
237 | if (size != VHOST_USER_HDR_SIZE) { | |
238 | g_test_message("Wrong message size received %d\n", size); | |
239 | return; | |
240 | } | |
241 | ||
ae31fb54 | 242 | g_mutex_lock(&s->data_mutex); |
a77e6b14 NN |
243 | memcpy(p, buf, VHOST_USER_HDR_SIZE); |
244 | ||
245 | if (msg.size) { | |
246 | p += VHOST_USER_HDR_SIZE; | |
4616e359 MAL |
247 | size = qemu_chr_fe_read_all(chr, p, msg.size); |
248 | if (size != msg.size) { | |
249 | g_test_message("Wrong message size received %d != %d\n", | |
250 | size, msg.size); | |
251 | return; | |
252 | } | |
a77e6b14 NN |
253 | } |
254 | ||
255 | switch (msg.request) { | |
256 | case VHOST_USER_GET_FEATURES: | |
8a9b6b37 MT |
257 | /* send back features to qemu */ |
258 | msg.flags |= VHOST_USER_REPLY_MASK; | |
12ebf690 MT |
259 | msg.size = sizeof(m.payload.u64); |
260 | msg.payload.u64 = 0x1ULL << VHOST_F_LOG_ALL | | |
b1819747 | 261 | 0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES; |
8a9b6b37 MT |
262 | p = (uint8_t *) &msg; |
263 | qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size); | |
264 | break; | |
265 | ||
266 | case VHOST_USER_SET_FEATURES: | |
12ebf690 | 267 | g_assert_cmpint(msg.payload.u64 & (0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES), |
8a9b6b37 MT |
268 | !=, 0ULL); |
269 | break; | |
270 | ||
271 | case VHOST_USER_GET_PROTOCOL_FEATURES: | |
a77e6b14 NN |
272 | /* send back features to qemu */ |
273 | msg.flags |= VHOST_USER_REPLY_MASK; | |
12ebf690 MT |
274 | msg.size = sizeof(m.payload.u64); |
275 | msg.payload.u64 = 1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD; | |
a77e6b14 NN |
276 | p = (uint8_t *) &msg; |
277 | qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size); | |
278 | break; | |
279 | ||
280 | case VHOST_USER_GET_VRING_BASE: | |
281 | /* send back vring base to qemu */ | |
282 | msg.flags |= VHOST_USER_REPLY_MASK; | |
12ebf690 MT |
283 | msg.size = sizeof(m.payload.state); |
284 | msg.payload.state.num = 0; | |
a77e6b14 NN |
285 | p = (uint8_t *) &msg; |
286 | qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size); | |
d08e42a1 MT |
287 | |
288 | assert(msg.payload.state.index < 2); | |
289 | s->rings &= ~(0x1ULL << msg.payload.state.index); | |
a77e6b14 NN |
290 | break; |
291 | ||
292 | case VHOST_USER_SET_MEM_TABLE: | |
293 | /* received the mem table */ | |
12ebf690 | 294 | memcpy(&s->memory, &msg.payload.memory, sizeof(msg.payload.memory)); |
ae31fb54 | 295 | s->fds_num = qemu_chr_fe_get_msgfds(chr, s->fds, G_N_ELEMENTS(s->fds)); |
a77e6b14 NN |
296 | |
297 | /* signal the test that it can continue */ | |
ae31fb54 | 298 | g_cond_signal(&s->data_cond); |
a77e6b14 NN |
299 | break; |
300 | ||
301 | case VHOST_USER_SET_VRING_KICK: | |
302 | case VHOST_USER_SET_VRING_CALL: | |
303 | /* consume the fd */ | |
304 | qemu_chr_fe_get_msgfds(chr, &fd, 1); | |
305 | /* | |
306 | * This is a non-blocking eventfd. | |
307 | * The receive function forces it to be blocking, | |
308 | * so revert it back to non-blocking. | |
309 | */ | |
310 | qemu_set_nonblock(fd); | |
311 | break; | |
b1819747 MAL |
312 | |
313 | case VHOST_USER_SET_LOG_BASE: | |
314 | if (s->log_fd != -1) { | |
315 | close(s->log_fd); | |
316 | s->log_fd = -1; | |
317 | } | |
318 | qemu_chr_fe_get_msgfds(chr, &s->log_fd, 1); | |
319 | msg.flags |= VHOST_USER_REPLY_MASK; | |
320 | msg.size = 0; | |
321 | p = (uint8_t *) &msg; | |
322 | qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE); | |
323 | ||
324 | g_cond_signal(&s->data_cond); | |
325 | break; | |
326 | ||
d08e42a1 MT |
327 | case VHOST_USER_SET_VRING_BASE: |
328 | assert(msg.payload.state.index < 2); | |
329 | s->rings |= 0x1ULL << msg.payload.state.index; | |
1d9edff7 MAL |
330 | break; |
331 | ||
a77e6b14 NN |
332 | default: |
333 | break; | |
334 | } | |
ae31fb54 MAL |
335 | |
336 | g_mutex_unlock(&s->data_mutex); | |
a77e6b14 NN |
337 | } |
338 | ||
1b7e1e3b | 339 | static const char *init_hugepagefs(const char *path) |
a77e6b14 | 340 | { |
a77e6b14 NN |
341 | struct statfs fs; |
342 | int ret; | |
343 | ||
a77e6b14 NN |
344 | if (access(path, R_OK | W_OK | X_OK)) { |
345 | g_test_message("access on path (%s): %s\n", path, strerror(errno)); | |
346 | return NULL; | |
347 | } | |
348 | ||
349 | do { | |
350 | ret = statfs(path, &fs); | |
351 | } while (ret != 0 && errno == EINTR); | |
352 | ||
353 | if (ret != 0) { | |
354 | g_test_message("statfs on path (%s): %s\n", path, strerror(errno)); | |
355 | return NULL; | |
356 | } | |
357 | ||
358 | if (fs.f_type != HUGETLBFS_MAGIC) { | |
359 | g_test_message("Warning: path not on HugeTLBFS: %s\n", path); | |
360 | return NULL; | |
361 | } | |
362 | ||
363 | return path; | |
364 | } | |
365 | ||
704b2168 | 366 | static TestServer *test_server_new(const gchar *name) |
ae31fb54 MAL |
367 | { |
368 | TestServer *server = g_new0(TestServer, 1); | |
ae31fb54 MAL |
369 | |
370 | server->socket_path = g_strdup_printf("%s/%s.sock", tmpfs, name); | |
a899b1ea | 371 | server->mig_path = g_strdup_printf("%s/%s.mig", tmpfs, name); |
ae31fb54 | 372 | server->chr_name = g_strdup_printf("chr-%s", name); |
ae31fb54 MAL |
373 | |
374 | g_mutex_init(&server->data_mutex); | |
375 | g_cond_init(&server->data_cond); | |
376 | ||
b1819747 MAL |
377 | server->log_fd = -1; |
378 | ||
ae31fb54 MAL |
379 | return server; |
380 | } | |
381 | ||
4616e359 MAL |
382 | static void test_server_create_chr(TestServer *server, const gchar *opt) |
383 | { | |
384 | gchar *chr_path; | |
ae31fb54 | 385 | |
4616e359 MAL |
386 | chr_path = g_strdup_printf("unix:%s%s", server->socket_path, opt); |
387 | server->chr = qemu_chr_new(server->chr_name, chr_path, NULL); | |
388 | g_free(chr_path); | |
389 | ||
390 | qemu_chr_add_handlers(server->chr, chr_can_read, chr_read, NULL, server); | |
391 | } | |
392 | ||
393 | static void test_server_listen(TestServer *server) | |
394 | { | |
395 | test_server_create_chr(server, ",server,nowait"); | |
396 | } | |
397 | ||
398 | static inline void test_server_connect(TestServer *server) | |
399 | { | |
400 | test_server_create_chr(server, ",reconnect=1"); | |
401 | } | |
402 | ||
403 | #define GET_QEMU_CMD(s) \ | |
404 | g_strdup_printf(QEMU_CMD, 512, 512, (root), (s)->chr_name, \ | |
405 | (s)->socket_path, "", (s)->chr_name) | |
406 | ||
407 | #define GET_QEMU_CMDE(s, mem, chr_opts, extra, ...) \ | |
408 | g_strdup_printf(QEMU_CMD extra, (mem), (mem), (root), (s)->chr_name, \ | |
409 | (s)->socket_path, (chr_opts), (s)->chr_name, ##__VA_ARGS__) | |
ae31fb54 | 410 | |
9732baf6 | 411 | static gboolean _test_server_free(TestServer *server) |
ae31fb54 MAL |
412 | { |
413 | int i; | |
414 | ||
415 | qemu_chr_delete(server->chr); | |
416 | ||
417 | for (i = 0; i < server->fds_num; i++) { | |
418 | close(server->fds[i]); | |
419 | } | |
420 | ||
b1819747 MAL |
421 | if (server->log_fd != -1) { |
422 | close(server->log_fd); | |
423 | } | |
424 | ||
ae31fb54 MAL |
425 | unlink(server->socket_path); |
426 | g_free(server->socket_path); | |
427 | ||
a899b1ea MAL |
428 | unlink(server->mig_path); |
429 | g_free(server->mig_path); | |
430 | ||
b1819747 | 431 | g_free(server->chr_name); |
ae31fb54 | 432 | g_free(server); |
9732baf6 MAL |
433 | |
434 | return FALSE; | |
435 | } | |
436 | ||
437 | static void test_server_free(TestServer *server) | |
438 | { | |
439 | g_idle_add((GSourceFunc)_test_server_free, server); | |
ae31fb54 MAL |
440 | } |
441 | ||
b1819747 MAL |
442 | static void wait_for_log_fd(TestServer *s) |
443 | { | |
444 | gint64 end_time; | |
445 | ||
446 | g_mutex_lock(&s->data_mutex); | |
447 | end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; | |
448 | while (s->log_fd == -1) { | |
449 | if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) { | |
450 | /* timeout has passed */ | |
451 | g_assert(s->log_fd != -1); | |
452 | break; | |
453 | } | |
454 | } | |
455 | ||
456 | g_mutex_unlock(&s->data_mutex); | |
457 | } | |
458 | ||
3a87d009 | 459 | static void write_guest_mem(TestServer *s, uint32_t seed) |
b1819747 MAL |
460 | { |
461 | uint32_t *guest_mem; | |
462 | int i, j; | |
463 | size_t size; | |
464 | ||
465 | wait_for_fds(s); | |
466 | ||
467 | /* iterate all regions */ | |
468 | for (i = 0; i < s->fds_num; i++) { | |
469 | ||
470 | /* We'll write only the region statring at 0x0 */ | |
471 | if (s->memory.regions[i].guest_phys_addr != 0x0) { | |
472 | continue; | |
473 | } | |
474 | ||
475 | g_assert_cmpint(s->memory.regions[i].memory_size, >, 1024); | |
476 | ||
477 | size = s->memory.regions[i].memory_size + | |
478 | s->memory.regions[i].mmap_offset; | |
479 | ||
480 | guest_mem = mmap(0, size, PROT_READ | PROT_WRITE, | |
481 | MAP_SHARED, s->fds[i], 0); | |
482 | ||
483 | g_assert(guest_mem != MAP_FAILED); | |
484 | guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem)); | |
485 | ||
486 | for (j = 0; j < 256; j++) { | |
487 | guest_mem[j] = seed + j; | |
488 | } | |
489 | ||
490 | munmap(guest_mem, s->memory.regions[i].memory_size); | |
491 | break; | |
492 | } | |
493 | } | |
494 | ||
495 | static guint64 get_log_size(TestServer *s) | |
496 | { | |
497 | guint64 log_size = 0; | |
498 | int i; | |
499 | ||
500 | for (i = 0; i < s->memory.nregions; ++i) { | |
501 | VhostUserMemoryRegion *reg = &s->memory.regions[i]; | |
502 | guint64 last = range_get_last(reg->guest_phys_addr, | |
503 | reg->memory_size); | |
504 | log_size = MAX(log_size, last / (8 * VHOST_LOG_PAGE) + 1); | |
505 | } | |
506 | ||
507 | return log_size; | |
508 | } | |
509 | ||
1d9edff7 MAL |
510 | typedef struct TestMigrateSource { |
511 | GSource source; | |
512 | TestServer *src; | |
513 | TestServer *dest; | |
514 | } TestMigrateSource; | |
515 | ||
516 | static gboolean | |
517 | test_migrate_source_check(GSource *source) | |
518 | { | |
519 | TestMigrateSource *t = (TestMigrateSource *)source; | |
d08e42a1 | 520 | gboolean overlap = t->src->rings && t->dest->rings; |
1d9edff7 MAL |
521 | |
522 | g_assert(!overlap); | |
523 | ||
524 | return FALSE; | |
525 | } | |
526 | ||
45ce5126 MAL |
527 | #if !GLIB_CHECK_VERSION(2,36,0) |
528 | /* this callback is unnecessary with glib >2.36, the default | |
529 | * prepare for the source does the same */ | |
530 | static gboolean | |
531 | test_migrate_source_prepare(GSource *source, gint *timeout) | |
532 | { | |
533 | *timeout = -1; | |
534 | return FALSE; | |
535 | } | |
536 | #endif | |
537 | ||
1d9edff7 | 538 | GSourceFuncs test_migrate_source_funcs = { |
45ce5126 MAL |
539 | #if !GLIB_CHECK_VERSION(2,36,0) |
540 | .prepare = test_migrate_source_prepare, | |
541 | #endif | |
542 | .check = test_migrate_source_check, | |
1d9edff7 MAL |
543 | }; |
544 | ||
b1819747 MAL |
545 | static void test_migrate(void) |
546 | { | |
547 | TestServer *s = test_server_new("src"); | |
548 | TestServer *dest = test_server_new("dest"); | |
a899b1ea | 549 | char *uri = g_strdup_printf("%s%s", "unix:", dest->mig_path); |
b1819747 | 550 | QTestState *global = global_qtest, *from, *to; |
1d9edff7 | 551 | GSource *source; |
b1819747 MAL |
552 | gchar *cmd; |
553 | QDict *rsp; | |
554 | guint8 *log; | |
555 | guint64 size; | |
556 | ||
4616e359 MAL |
557 | test_server_listen(s); |
558 | test_server_listen(dest); | |
559 | ||
560 | cmd = GET_QEMU_CMDE(s, 2, "", ""); | |
b1819747 MAL |
561 | from = qtest_start(cmd); |
562 | g_free(cmd); | |
563 | ||
564 | wait_for_fds(s); | |
565 | size = get_log_size(s); | |
566 | g_assert_cmpint(size, ==, (2 * 1024 * 1024) / (VHOST_LOG_PAGE * 8)); | |
567 | ||
4616e359 | 568 | cmd = GET_QEMU_CMDE(dest, 2, "", " -incoming %s", uri); |
b1819747 MAL |
569 | to = qtest_init(cmd); |
570 | g_free(cmd); | |
571 | ||
1d9edff7 MAL |
572 | source = g_source_new(&test_migrate_source_funcs, |
573 | sizeof(TestMigrateSource)); | |
574 | ((TestMigrateSource *)source)->src = s; | |
575 | ((TestMigrateSource *)source)->dest = dest; | |
576 | g_source_attach(source, NULL); | |
577 | ||
b1819747 MAL |
578 | /* slow down migration to have time to fiddle with log */ |
579 | /* TODO: qtest could learn to break on some places */ | |
580 | rsp = qmp("{ 'execute': 'migrate_set_speed'," | |
581 | "'arguments': { 'value': 10 } }"); | |
582 | g_assert(qdict_haskey(rsp, "return")); | |
583 | QDECREF(rsp); | |
584 | ||
585 | cmd = g_strdup_printf("{ 'execute': 'migrate'," | |
586 | "'arguments': { 'uri': '%s' } }", | |
587 | uri); | |
588 | rsp = qmp(cmd); | |
589 | g_free(cmd); | |
590 | g_assert(qdict_haskey(rsp, "return")); | |
591 | QDECREF(rsp); | |
592 | ||
593 | wait_for_log_fd(s); | |
594 | ||
595 | log = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, s->log_fd, 0); | |
596 | g_assert(log != MAP_FAILED); | |
597 | ||
598 | /* modify first page */ | |
599 | write_guest_mem(s, 0x42); | |
600 | log[0] = 1; | |
601 | munmap(log, size); | |
602 | ||
603 | /* speed things up */ | |
604 | rsp = qmp("{ 'execute': 'migrate_set_speed'," | |
605 | "'arguments': { 'value': 0 } }"); | |
606 | g_assert(qdict_haskey(rsp, "return")); | |
607 | QDECREF(rsp); | |
608 | ||
609 | qmp_eventwait("STOP"); | |
610 | ||
611 | global_qtest = to; | |
612 | qmp_eventwait("RESUME"); | |
613 | ||
614 | read_guest_mem(dest); | |
615 | ||
1d9edff7 MAL |
616 | g_source_destroy(source); |
617 | g_source_unref(source); | |
618 | ||
b1819747 MAL |
619 | qtest_quit(to); |
620 | test_server_free(dest); | |
621 | qtest_quit(from); | |
622 | test_server_free(s); | |
a899b1ea | 623 | g_free(uri); |
b1819747 MAL |
624 | |
625 | global_qtest = global; | |
626 | } | |
627 | ||
4616e359 MAL |
628 | #ifdef CONFIG_HAS_GLIB_SUBPROCESS_TESTS |
629 | static void wait_for_rings_started(TestServer *s, size_t count) | |
630 | { | |
631 | gint64 end_time; | |
632 | ||
633 | g_mutex_lock(&s->data_mutex); | |
634 | end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; | |
635 | while (ctpop64(s->rings) != count) { | |
636 | if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) { | |
637 | /* timeout has passed */ | |
638 | g_assert_cmpint(ctpop64(s->rings), ==, count); | |
639 | break; | |
640 | } | |
641 | } | |
642 | ||
643 | g_mutex_unlock(&s->data_mutex); | |
644 | } | |
645 | ||
646 | static gboolean | |
647 | reconnect_cb(gpointer user_data) | |
648 | { | |
649 | TestServer *s = user_data; | |
650 | ||
651 | qemu_chr_disconnect(s->chr); | |
652 | ||
653 | return FALSE; | |
654 | } | |
655 | ||
656 | static gpointer | |
657 | connect_thread(gpointer data) | |
658 | { | |
659 | TestServer *s = data; | |
660 | ||
661 | /* wait for qemu to start before first try, to avoid extra warnings */ | |
662 | g_usleep(G_USEC_PER_SEC); | |
663 | test_server_connect(s); | |
664 | ||
665 | return NULL; | |
666 | } | |
667 | ||
668 | static void test_reconnect_subprocess(void) | |
669 | { | |
670 | TestServer *s = test_server_new("reconnect"); | |
671 | char *cmd; | |
672 | ||
673 | g_thread_new("connect", connect_thread, s); | |
674 | cmd = GET_QEMU_CMDE(s, 2, ",server", ""); | |
675 | qtest_start(cmd); | |
676 | g_free(cmd); | |
677 | ||
678 | wait_for_fds(s); | |
679 | wait_for_rings_started(s, 2); | |
680 | ||
681 | /* reconnect */ | |
682 | s->fds_num = 0; | |
683 | s->rings = 0; | |
684 | g_idle_add(reconnect_cb, s); | |
685 | wait_for_fds(s); | |
686 | wait_for_rings_started(s, 2); | |
687 | ||
688 | qtest_end(); | |
689 | test_server_free(s); | |
690 | return; | |
691 | } | |
692 | ||
693 | static void test_reconnect(void) | |
694 | { | |
695 | gchar *path = g_strdup_printf("/%s/vhost-user/reconnect/subprocess", | |
696 | qtest_get_arch()); | |
697 | g_test_trap_subprocess(path, 0, 0); | |
698 | g_test_trap_assert_passed(); | |
699 | } | |
700 | #endif | |
701 | ||
a77e6b14 NN |
702 | int main(int argc, char **argv) |
703 | { | |
704 | QTestState *s = NULL; | |
ae31fb54 | 705 | TestServer *server = NULL; |
1b7e1e3b | 706 | const char *hugefs; |
ae31fb54 | 707 | char *qemu_cmd = NULL; |
a77e6b14 | 708 | int ret; |
1b7e1e3b | 709 | char template[] = "/tmp/vhost-test-XXXXXX"; |
9732baf6 MAL |
710 | GMainLoop *loop; |
711 | GThread *thread; | |
a77e6b14 NN |
712 | |
713 | g_test_init(&argc, &argv, NULL); | |
714 | ||
715 | module_call_init(MODULE_INIT_QOM); | |
ae31fb54 | 716 | qemu_add_opts(&qemu_chardev_opts); |
a77e6b14 | 717 | |
1b7e1e3b MT |
718 | tmpfs = mkdtemp(template); |
719 | if (!tmpfs) { | |
ae31fb54 | 720 | g_test_message("mkdtemp on path (%s): %s\n", template, strerror(errno)); |
1b7e1e3b MT |
721 | } |
722 | g_assert(tmpfs); | |
723 | ||
724 | hugefs = getenv("QTEST_HUGETLBFS_PATH"); | |
725 | if (hugefs) { | |
726 | root = init_hugepagefs(hugefs); | |
727 | g_assert(root); | |
728 | } else { | |
729 | root = tmpfs; | |
a77e6b14 NN |
730 | } |
731 | ||
704b2168 | 732 | server = test_server_new("test"); |
4616e359 | 733 | test_server_listen(server); |
a77e6b14 | 734 | |
9732baf6 | 735 | loop = g_main_loop_new(NULL, FALSE); |
a77e6b14 | 736 | /* run the main loop thread so the chardev may operate */ |
9732baf6 | 737 | thread = g_thread_new(NULL, thread_function, loop); |
a77e6b14 | 738 | |
704b2168 | 739 | qemu_cmd = GET_QEMU_CMD(server); |
ae31fb54 | 740 | |
a77e6b14 NN |
741 | s = qtest_start(qemu_cmd); |
742 | g_free(qemu_cmd); | |
743 | ||
ae31fb54 | 744 | qtest_add_data_func("/vhost-user/read-guest-mem", server, read_guest_mem); |
b1819747 | 745 | qtest_add_func("/vhost-user/migrate", test_migrate); |
4616e359 MAL |
746 | #ifdef CONFIG_HAS_GLIB_SUBPROCESS_TESTS |
747 | qtest_add_func("/vhost-user/reconnect/subprocess", | |
748 | test_reconnect_subprocess); | |
749 | qtest_add_func("/vhost-user/reconnect", test_reconnect); | |
750 | #endif | |
a77e6b14 NN |
751 | |
752 | ret = g_test_run(); | |
753 | ||
754 | if (s) { | |
755 | qtest_quit(s); | |
756 | } | |
757 | ||
758 | /* cleanup */ | |
ae31fb54 | 759 | test_server_free(server); |
a77e6b14 | 760 | |
9732baf6 MAL |
761 | /* finish the helper thread and dispatch pending sources */ |
762 | g_main_loop_quit(loop); | |
763 | g_thread_join(thread); | |
764 | while (g_main_context_pending(NULL)) { | |
765 | g_main_context_iteration (NULL, TRUE); | |
766 | } | |
767 | g_main_loop_unref(loop); | |
768 | ||
1b7e1e3b MT |
769 | ret = rmdir(tmpfs); |
770 | if (ret != 0) { | |
771 | g_test_message("unable to rmdir: path (%s): %s\n", | |
772 | tmpfs, strerror(errno)); | |
773 | } | |
774 | g_assert_cmpint(ret, ==, 0); | |
775 | ||
a77e6b14 NN |
776 | return ret; |
777 | } |