2 * QTest testcase for the vhost-user
4 * Copyright (c) 2014 Virtual Open Systems Sarl.
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.
11 #include "qemu/osdep.h"
14 #include "qapi/error.h"
15 #include "qapi/qmp/qdict.h"
16 #include "qemu/config-file.h"
17 #include "qemu/option.h"
18 #include "qemu/range.h"
19 #include "qemu/sockets.h"
20 #include "chardev/char-fe.h"
21 #include "qemu/memfd.h"
22 #include "sysemu/sysemu.h"
23 #include "libqos/libqos.h"
24 #include "libqos/pci-pc.h"
25 #include "libqos/virtio-pci.h"
27 #include "libqos/malloc-pc.h"
28 #include "hw/virtio/virtio-net.h"
30 #include "standard-headers/linux/vhost_types.h"
31 #include "standard-headers/linux/virtio_ids.h"
32 #include "standard-headers/linux/virtio_net.h"
39 #define QEMU_CMD_MEM " -m %d -object memory-backend-file,id=mem,size=%dM," \
40 "mem-path=%s,share=on -numa node,memdev=mem"
41 #define QEMU_CMD_MEMFD " -m %d -object memory-backend-memfd,id=mem,size=%dM," \
42 " -numa node,memdev=mem"
43 #define QEMU_CMD_CHR " -chardev socket,id=%s,path=%s%s"
44 #define QEMU_CMD_NETDEV " -netdev vhost-user,id=net0,chardev=%s,vhostforce"
45 #define QEMU_CMD_NET " -device virtio-net-pci,netdev=net0"
47 #define HUGETLBFS_MAGIC 0x958458f6
49 /*********** FROM hw/virtio/vhost-user.c *************************************/
51 #define VHOST_MEMORY_MAX_NREGIONS 8
52 #define VHOST_MAX_VIRTQUEUES 0x100
54 #define VHOST_USER_F_PROTOCOL_FEATURES 30
55 #define VHOST_USER_PROTOCOL_F_MQ 0
56 #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1
57 #define VHOST_USER_PROTOCOL_F_CROSS_ENDIAN 6
59 #define VHOST_LOG_PAGE 0x1000
61 typedef enum VhostUserRequest
{
63 VHOST_USER_GET_FEATURES
= 1,
64 VHOST_USER_SET_FEATURES
= 2,
65 VHOST_USER_SET_OWNER
= 3,
66 VHOST_USER_RESET_OWNER
= 4,
67 VHOST_USER_SET_MEM_TABLE
= 5,
68 VHOST_USER_SET_LOG_BASE
= 6,
69 VHOST_USER_SET_LOG_FD
= 7,
70 VHOST_USER_SET_VRING_NUM
= 8,
71 VHOST_USER_SET_VRING_ADDR
= 9,
72 VHOST_USER_SET_VRING_BASE
= 10,
73 VHOST_USER_GET_VRING_BASE
= 11,
74 VHOST_USER_SET_VRING_KICK
= 12,
75 VHOST_USER_SET_VRING_CALL
= 13,
76 VHOST_USER_SET_VRING_ERR
= 14,
77 VHOST_USER_GET_PROTOCOL_FEATURES
= 15,
78 VHOST_USER_SET_PROTOCOL_FEATURES
= 16,
79 VHOST_USER_GET_QUEUE_NUM
= 17,
80 VHOST_USER_SET_VRING_ENABLE
= 18,
84 typedef struct VhostUserMemoryRegion
{
85 uint64_t guest_phys_addr
;
87 uint64_t userspace_addr
;
89 } VhostUserMemoryRegion
;
91 typedef struct VhostUserMemory
{
94 VhostUserMemoryRegion regions
[VHOST_MEMORY_MAX_NREGIONS
];
97 typedef struct VhostUserLog
{
102 typedef struct VhostUserMsg
{
103 VhostUserRequest request
;
105 #define VHOST_USER_VERSION_MASK (0x3)
106 #define VHOST_USER_REPLY_MASK (0x1<<2)
108 uint32_t size
; /* the following payload size */
110 #define VHOST_USER_VRING_IDX_MASK (0xff)
111 #define VHOST_USER_VRING_NOFD_MASK (0x1<<8)
113 struct vhost_vring_state state
;
114 struct vhost_vring_addr addr
;
115 VhostUserMemory memory
;
118 } QEMU_PACKED VhostUserMsg
;
120 static VhostUserMsg m
__attribute__ ((unused
));
121 #define VHOST_USER_HDR_SIZE (sizeof(m.request) \
125 #define VHOST_USER_PAYLOAD_SIZE (sizeof(m) - VHOST_USER_HDR_SIZE)
127 /* The version of the protocol we support */
128 #define VHOST_USER_VERSION (0x1)
129 /*****************************************************************************/
133 TEST_FLAGS_DISCONNECT
,
138 typedef struct TestServer
{
140 QVirtioPCIDevice
*dev
;
141 QVirtQueue
*vq
[VHOST_MAX_VIRTQUEUES
];
147 int fds
[VHOST_MEMORY_MAX_NREGIONS
];
148 VhostUserMemory memory
;
149 GMainContext
*context
;
159 QGuestAllocator
*alloc
;
162 static TestServer
*test_server_new(const gchar
*name
);
163 static void test_server_free(TestServer
*server
);
164 static void test_server_listen(TestServer
*server
);
166 static const char *tmpfs
;
167 static const char *root
;
175 static char *get_qemu_cmd(TestServer
*s
,
176 int mem
, enum test_memfd memfd
, const char *mem_path
,
177 const char *chr_opts
, const char *extra
)
179 if (memfd
== TEST_MEMFD_AUTO
&& qemu_memfd_check(0)) {
180 memfd
= TEST_MEMFD_YES
;
183 if (memfd
== TEST_MEMFD_YES
) {
184 return g_strdup_printf(QEMU_CMD_MEMFD QEMU_CMD_CHR
185 QEMU_CMD_NETDEV QEMU_CMD_NET
"%s", mem
, mem
,
186 s
->chr_name
, s
->socket_path
,
187 chr_opts
, s
->chr_name
, extra
);
189 return g_strdup_printf(QEMU_CMD_MEM QEMU_CMD_CHR
190 QEMU_CMD_NETDEV QEMU_CMD_NET
"%s", mem
, mem
,
191 mem_path
, s
->chr_name
, s
->socket_path
,
192 chr_opts
, s
->chr_name
, extra
);
196 static void init_virtio_dev(QTestState
*qts
, TestServer
*s
, uint32_t features_mask
)
201 s
->bus
= qpci_init_pc(qts
, NULL
);
202 g_assert_nonnull(s
->bus
);
204 s
->dev
= qvirtio_pci_device_find(s
->bus
, VIRTIO_ID_NET
);
205 g_assert_nonnull(s
->dev
);
207 qvirtio_pci_device_enable(s
->dev
);
208 qvirtio_reset(&s
->dev
->vdev
);
209 qvirtio_set_acknowledge(&s
->dev
->vdev
);
210 qvirtio_set_driver(&s
->dev
->vdev
);
212 s
->alloc
= pc_alloc_init(qts
);
214 for (i
= 0; i
< s
->queues
* 2; i
++) {
215 s
->vq
[i
] = qvirtqueue_setup(&s
->dev
->vdev
, s
->alloc
, i
);
218 features
= qvirtio_get_features(&s
->dev
->vdev
);
219 features
= features
& features_mask
;
220 qvirtio_set_features(&s
->dev
->vdev
, features
);
222 qvirtio_set_driver_ok(&s
->dev
->vdev
);
225 static void uninit_virtio_dev(TestServer
*s
)
229 for (i
= 0; i
< s
->queues
* 2; i
++) {
230 qvirtqueue_cleanup(s
->dev
->vdev
.bus
, s
->vq
[i
], s
->alloc
);
232 pc_alloc_uninit(s
->alloc
);
234 qvirtio_pci_device_free(s
->dev
);
237 static bool wait_for_fds(TestServer
*s
)
243 g_mutex_lock(&s
->data_mutex
);
245 end_time
= g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND
;
246 while (!s
->fds_num
) {
247 if (!g_cond_wait_until(&s
->data_cond
, &s
->data_mutex
, end_time
)) {
248 /* timeout has passed */
249 g_assert(s
->fds_num
);
254 /* check for sanity */
255 g_assert_cmpint(s
->fds_num
, >, 0);
256 g_assert_cmpint(s
->fds_num
, ==, s
->memory
.nregions
);
258 g_mutex_unlock(&s
->data_mutex
);
261 for (i
= 0; i
< s
->memory
.nregions
; ++i
) {
262 VhostUserMemoryRegion
*reg
= &s
->memory
.regions
[i
];
263 if (reg
->guest_phys_addr
== 0) {
269 g_test_skip("No memory at address 0x0");
274 static void read_guest_mem_server(QTestState
*qts
, TestServer
*s
)
280 g_mutex_lock(&s
->data_mutex
);
282 /* iterate all regions */
283 for (i
= 0; i
< s
->fds_num
; i
++) {
285 /* We'll check only the region statring at 0x0*/
286 if (s
->memory
.regions
[i
].guest_phys_addr
!= 0x0) {
290 g_assert_cmpint(s
->memory
.regions
[i
].memory_size
, >, 1024);
292 size
= s
->memory
.regions
[i
].memory_size
+
293 s
->memory
.regions
[i
].mmap_offset
;
295 guest_mem
= mmap(0, size
, PROT_READ
| PROT_WRITE
,
296 MAP_SHARED
, s
->fds
[i
], 0);
298 g_assert(guest_mem
!= MAP_FAILED
);
299 guest_mem
+= (s
->memory
.regions
[i
].mmap_offset
/ sizeof(*guest_mem
));
301 for (j
= 0; j
< 1024; j
++) {
302 uint32_t a
= qtest_readb(qts
, s
->memory
.regions
[i
].guest_phys_addr
+ j
);
303 uint32_t b
= guest_mem
[j
];
305 g_assert_cmpint(a
, ==, b
);
308 munmap(guest_mem
, s
->memory
.regions
[i
].memory_size
);
311 g_mutex_unlock(&s
->data_mutex
);
314 static void *thread_function(void *data
)
316 GMainLoop
*loop
= data
;
317 g_main_loop_run(loop
);
321 static int chr_can_read(void *opaque
)
323 return VHOST_USER_HDR_SIZE
;
326 static void chr_read(void *opaque
, const uint8_t *buf
, int size
)
328 TestServer
*s
= opaque
;
329 CharBackend
*chr
= &s
->chr
;
331 uint8_t *p
= (uint8_t *) &msg
;
335 qemu_chr_fe_disconnect(chr
);
336 /* now switch to non-failure */
337 s
->test_fail
= false;
340 if (size
!= VHOST_USER_HDR_SIZE
) {
341 g_test_message("Wrong message size received %d\n", size
);
345 g_mutex_lock(&s
->data_mutex
);
346 memcpy(p
, buf
, VHOST_USER_HDR_SIZE
);
349 p
+= VHOST_USER_HDR_SIZE
;
350 size
= qemu_chr_fe_read_all(chr
, p
, msg
.size
);
351 if (size
!= msg
.size
) {
352 g_test_message("Wrong message size received %d != %d\n",
358 switch (msg
.request
) {
359 case VHOST_USER_GET_FEATURES
:
360 /* send back features to qemu */
361 msg
.flags
|= VHOST_USER_REPLY_MASK
;
362 msg
.size
= sizeof(m
.payload
.u64
);
363 msg
.payload
.u64
= 0x1ULL
<< VHOST_F_LOG_ALL
|
364 0x1ULL
<< VHOST_USER_F_PROTOCOL_FEATURES
;
366 msg
.payload
.u64
|= 0x1ULL
<< VIRTIO_NET_F_MQ
;
368 if (s
->test_flags
>= TEST_FLAGS_BAD
) {
370 s
->test_flags
= TEST_FLAGS_END
;
372 p
= (uint8_t *) &msg
;
373 qemu_chr_fe_write_all(chr
, p
, VHOST_USER_HDR_SIZE
+ msg
.size
);
376 case VHOST_USER_SET_FEATURES
:
377 g_assert_cmpint(msg
.payload
.u64
& (0x1ULL
<< VHOST_USER_F_PROTOCOL_FEATURES
),
379 if (s
->test_flags
== TEST_FLAGS_DISCONNECT
) {
380 qemu_chr_fe_disconnect(chr
);
381 s
->test_flags
= TEST_FLAGS_BAD
;
385 case VHOST_USER_GET_PROTOCOL_FEATURES
:
386 /* send back features to qemu */
387 msg
.flags
|= VHOST_USER_REPLY_MASK
;
388 msg
.size
= sizeof(m
.payload
.u64
);
389 msg
.payload
.u64
= 1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD
;
390 msg
.payload
.u64
|= 1 << VHOST_USER_PROTOCOL_F_CROSS_ENDIAN
;
392 msg
.payload
.u64
|= 1 << VHOST_USER_PROTOCOL_F_MQ
;
394 p
= (uint8_t *) &msg
;
395 qemu_chr_fe_write_all(chr
, p
, VHOST_USER_HDR_SIZE
+ msg
.size
);
398 case VHOST_USER_GET_VRING_BASE
:
399 /* send back vring base to qemu */
400 msg
.flags
|= VHOST_USER_REPLY_MASK
;
401 msg
.size
= sizeof(m
.payload
.state
);
402 msg
.payload
.state
.num
= 0;
403 p
= (uint8_t *) &msg
;
404 qemu_chr_fe_write_all(chr
, p
, VHOST_USER_HDR_SIZE
+ msg
.size
);
406 assert(msg
.payload
.state
.index
< s
->queues
* 2);
407 s
->rings
&= ~(0x1ULL
<< msg
.payload
.state
.index
);
408 g_cond_broadcast(&s
->data_cond
);
411 case VHOST_USER_SET_MEM_TABLE
:
412 /* received the mem table */
413 memcpy(&s
->memory
, &msg
.payload
.memory
, sizeof(msg
.payload
.memory
));
414 s
->fds_num
= qemu_chr_fe_get_msgfds(chr
, s
->fds
,
415 G_N_ELEMENTS(s
->fds
));
417 /* signal the test that it can continue */
418 g_cond_broadcast(&s
->data_cond
);
421 case VHOST_USER_SET_VRING_KICK
:
422 case VHOST_USER_SET_VRING_CALL
:
424 qemu_chr_fe_get_msgfds(chr
, &fd
, 1);
426 * This is a non-blocking eventfd.
427 * The receive function forces it to be blocking,
428 * so revert it back to non-blocking.
430 qemu_set_nonblock(fd
);
433 case VHOST_USER_SET_LOG_BASE
:
434 if (s
->log_fd
!= -1) {
438 qemu_chr_fe_get_msgfds(chr
, &s
->log_fd
, 1);
439 msg
.flags
|= VHOST_USER_REPLY_MASK
;
441 p
= (uint8_t *) &msg
;
442 qemu_chr_fe_write_all(chr
, p
, VHOST_USER_HDR_SIZE
);
444 g_cond_broadcast(&s
->data_cond
);
447 case VHOST_USER_SET_VRING_BASE
:
448 assert(msg
.payload
.state
.index
< s
->queues
* 2);
449 s
->rings
|= 0x1ULL
<< msg
.payload
.state
.index
;
450 g_cond_broadcast(&s
->data_cond
);
453 case VHOST_USER_GET_QUEUE_NUM
:
454 msg
.flags
|= VHOST_USER_REPLY_MASK
;
455 msg
.size
= sizeof(m
.payload
.u64
);
456 msg
.payload
.u64
= s
->queues
;
457 p
= (uint8_t *) &msg
;
458 qemu_chr_fe_write_all(chr
, p
, VHOST_USER_HDR_SIZE
+ msg
.size
);
465 g_mutex_unlock(&s
->data_mutex
);
469 static const char *init_hugepagefs(const char *path
)
474 if (access(path
, R_OK
| W_OK
| X_OK
)) {
475 g_test_message("access on path (%s): %s\n", path
, strerror(errno
));
480 ret
= statfs(path
, &fs
);
481 } while (ret
!= 0 && errno
== EINTR
);
484 g_test_message("statfs on path (%s): %s\n", path
, strerror(errno
));
488 if (fs
.f_type
!= HUGETLBFS_MAGIC
) {
489 g_test_message("Warning: path not on HugeTLBFS: %s\n", path
);
497 static TestServer
*test_server_new(const gchar
*name
)
499 TestServer
*server
= g_new0(TestServer
, 1);
501 server
->context
= g_main_context_new();
502 server
->loop
= g_main_loop_new(server
->context
, FALSE
);
504 /* run the main loop thread so the chardev may operate */
505 server
->thread
= g_thread_new(NULL
, thread_function
, server
->loop
);
507 server
->socket_path
= g_strdup_printf("%s/%s.sock", tmpfs
, name
);
508 server
->mig_path
= g_strdup_printf("%s/%s.mig", tmpfs
, name
);
509 server
->chr_name
= g_strdup_printf("chr-%s", name
);
511 g_mutex_init(&server
->data_mutex
);
512 g_cond_init(&server
->data_cond
);
520 static void chr_event(void *opaque
, int event
)
522 TestServer
*s
= opaque
;
524 if (s
->test_flags
== TEST_FLAGS_END
&&
525 event
== CHR_EVENT_CLOSED
) {
526 s
->test_flags
= TEST_FLAGS_OK
;
530 static void test_server_create_chr(TestServer
*server
, const gchar
*opt
)
535 chr_path
= g_strdup_printf("unix:%s%s", server
->socket_path
, opt
);
536 chr
= qemu_chr_new(server
->chr_name
, chr_path
, server
->context
);
539 g_assert_nonnull(chr
);
540 qemu_chr_fe_init(&server
->chr
, chr
, &error_abort
);
541 qemu_chr_fe_set_handlers(&server
->chr
, chr_can_read
, chr_read
,
542 chr_event
, NULL
, server
, server
->context
, true);
545 static void test_server_listen(TestServer
*server
)
547 test_server_create_chr(server
, ",server,nowait");
550 static void test_server_free(TestServer
*server
)
554 /* finish the helper thread and dispatch pending sources */
555 g_main_loop_quit(server
->loop
);
556 g_thread_join(server
->thread
);
557 while (g_main_context_pending(NULL
)) {
558 g_main_context_iteration(NULL
, TRUE
);
561 qemu_chr_fe_deinit(&server
->chr
, true);
563 for (i
= 0; i
< server
->fds_num
; i
++) {
564 close(server
->fds
[i
]);
567 if (server
->log_fd
!= -1) {
568 close(server
->log_fd
);
571 unlink(server
->socket_path
);
572 g_free(server
->socket_path
);
574 unlink(server
->mig_path
);
575 g_free(server
->mig_path
);
577 g_free(server
->chr_name
);
578 g_assert(server
->bus
);
579 qpci_free_pc(server
->bus
);
581 g_main_loop_unref(server
->loop
);
582 g_main_context_unref(server
->context
);
586 static void wait_for_log_fd(TestServer
*s
)
590 g_mutex_lock(&s
->data_mutex
);
591 end_time
= g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND
;
592 while (s
->log_fd
== -1) {
593 if (!g_cond_wait_until(&s
->data_cond
, &s
->data_mutex
, end_time
)) {
594 /* timeout has passed */
595 g_assert(s
->log_fd
!= -1);
600 g_mutex_unlock(&s
->data_mutex
);
603 static void write_guest_mem(TestServer
*s
, uint32_t seed
)
609 /* iterate all regions */
610 for (i
= 0; i
< s
->fds_num
; i
++) {
612 /* We'll write only the region statring at 0x0 */
613 if (s
->memory
.regions
[i
].guest_phys_addr
!= 0x0) {
617 g_assert_cmpint(s
->memory
.regions
[i
].memory_size
, >, 1024);
619 size
= s
->memory
.regions
[i
].memory_size
+
620 s
->memory
.regions
[i
].mmap_offset
;
622 guest_mem
= mmap(0, size
, PROT_READ
| PROT_WRITE
,
623 MAP_SHARED
, s
->fds
[i
], 0);
625 g_assert(guest_mem
!= MAP_FAILED
);
626 guest_mem
+= (s
->memory
.regions
[i
].mmap_offset
/ sizeof(*guest_mem
));
628 for (j
= 0; j
< 256; j
++) {
629 guest_mem
[j
] = seed
+ j
;
632 munmap(guest_mem
, s
->memory
.regions
[i
].memory_size
);
637 static guint64
get_log_size(TestServer
*s
)
639 guint64 log_size
= 0;
642 for (i
= 0; i
< s
->memory
.nregions
; ++i
) {
643 VhostUserMemoryRegion
*reg
= &s
->memory
.regions
[i
];
644 guint64 last
= range_get_last(reg
->guest_phys_addr
,
646 log_size
= MAX(log_size
, last
/ (8 * VHOST_LOG_PAGE
) + 1);
652 typedef struct TestMigrateSource
{
659 test_migrate_source_check(GSource
*source
)
661 TestMigrateSource
*t
= (TestMigrateSource
*)source
;
662 gboolean overlap
= t
->src
->rings
&& t
->dest
->rings
;
669 GSourceFuncs test_migrate_source_funcs
= {
670 .check
= test_migrate_source_check
,
673 static void test_read_guest_mem(const void *arg
)
675 enum test_memfd memfd
= GPOINTER_TO_INT(arg
);
676 TestServer
*server
= NULL
;
677 char *qemu_cmd
= NULL
;
678 QTestState
*s
= NULL
;
680 server
= test_server_new(memfd
== TEST_MEMFD_YES
?
681 "read-guest-memfd" : "read-guest-mem");
682 test_server_listen(server
);
684 qemu_cmd
= get_qemu_cmd(server
, 512, memfd
, root
, "", "");
686 s
= qtest_start(qemu_cmd
);
689 init_virtio_dev(global_qtest
, server
, 1u << VIRTIO_NET_F_MAC
);
691 if (!wait_for_fds(server
)) {
695 read_guest_mem_server(global_qtest
, server
);
698 uninit_virtio_dev(server
);
701 test_server_free(server
);
704 static void test_migrate(void)
706 TestServer
*s
= test_server_new("src");
707 TestServer
*dest
= test_server_new("dest");
708 char *uri
= g_strdup_printf("%s%s", "unix:", dest
->mig_path
);
709 QTestState
*from
, *to
;
716 test_server_listen(s
);
717 test_server_listen(dest
);
719 cmd
= get_qemu_cmd(s
, 2, TEST_MEMFD_AUTO
, root
, "", "");
720 from
= qtest_start(cmd
);
723 init_virtio_dev(from
, s
, 1u << VIRTIO_NET_F_MAC
);
724 if (!wait_for_fds(s
)) {
728 size
= get_log_size(s
);
729 g_assert_cmpint(size
, ==, (2 * 1024 * 1024) / (VHOST_LOG_PAGE
* 8));
731 tmp
= g_strdup_printf(" -incoming %s", uri
);
732 cmd
= get_qemu_cmd(dest
, 2, TEST_MEMFD_AUTO
, root
, "", tmp
);
734 to
= qtest_init(cmd
);
736 init_virtio_dev(to
, dest
, 1u << VIRTIO_NET_F_MAC
);
738 source
= g_source_new(&test_migrate_source_funcs
,
739 sizeof(TestMigrateSource
));
740 ((TestMigrateSource
*)source
)->src
= s
;
741 ((TestMigrateSource
*)source
)->dest
= dest
;
742 g_source_attach(source
, s
->context
);
744 /* slow down migration to have time to fiddle with log */
745 /* TODO: qtest could learn to break on some places */
746 rsp
= qmp("{ 'execute': 'migrate_set_speed',"
747 "'arguments': { 'value': 10 } }");
748 g_assert(qdict_haskey(rsp
, "return"));
751 rsp
= qmp("{ 'execute': 'migrate', 'arguments': { 'uri': %s } }", uri
);
752 g_assert(qdict_haskey(rsp
, "return"));
757 log
= mmap(0, size
, PROT_READ
| PROT_WRITE
, MAP_SHARED
, s
->log_fd
, 0);
758 g_assert(log
!= MAP_FAILED
);
760 /* modify first page */
761 write_guest_mem(s
, 0x42);
765 /* speed things up */
766 rsp
= qmp("{ 'execute': 'migrate_set_speed',"
767 "'arguments': { 'value': 0 } }");
768 g_assert(qdict_haskey(rsp
, "return"));
771 qmp_eventwait("STOP");
772 qtest_qmp_eventwait(to
, "RESUME");
774 g_assert(wait_for_fds(dest
));
775 read_guest_mem_server(to
, dest
);
777 uninit_virtio_dev(dest
);
780 g_source_destroy(source
);
781 g_source_unref(source
);
784 uninit_virtio_dev(s
);
786 test_server_free(dest
);
792 static void wait_for_rings_started(TestServer
*s
, size_t count
)
796 g_mutex_lock(&s
->data_mutex
);
797 end_time
= g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND
;
798 while (ctpop64(s
->rings
) != count
) {
799 if (!g_cond_wait_until(&s
->data_cond
, &s
->data_mutex
, end_time
)) {
800 /* timeout has passed */
801 g_assert_cmpint(ctpop64(s
->rings
), ==, count
);
806 g_mutex_unlock(&s
->data_mutex
);
809 static inline void test_server_connect(TestServer
*server
)
811 test_server_create_chr(server
, ",reconnect=1");
815 reconnect_cb(gpointer user_data
)
817 TestServer
*s
= user_data
;
819 qemu_chr_fe_disconnect(&s
->chr
);
825 connect_thread(gpointer data
)
827 TestServer
*s
= data
;
829 /* wait for qemu to start before first try, to avoid extra warnings */
830 g_usleep(G_USEC_PER_SEC
);
831 test_server_connect(s
);
836 static void test_reconnect_subprocess(void)
838 TestServer
*s
= test_server_new("reconnect");
842 g_thread_new("connect", connect_thread
, s
);
843 cmd
= get_qemu_cmd(s
, 2, TEST_MEMFD_AUTO
, root
, ",server", "");
847 init_virtio_dev(global_qtest
, s
, 1u << VIRTIO_NET_F_MAC
);
848 if (!wait_for_fds(s
)) {
852 wait_for_rings_started(s
, 2);
857 src
= g_idle_source_new();
858 g_source_set_callback(src
, reconnect_cb
, s
, NULL
);
859 g_source_attach(src
, s
->context
);
861 g_assert(wait_for_fds(s
));
862 wait_for_rings_started(s
, 2);
865 uninit_virtio_dev(s
);
872 static void test_reconnect(void)
874 gchar
*path
= g_strdup_printf("/%s/vhost-user/reconnect/subprocess",
876 g_test_trap_subprocess(path
, 0, 0);
877 g_test_trap_assert_passed();
881 static void test_connect_fail_subprocess(void)
883 TestServer
*s
= test_server_new("connect-fail");
887 g_thread_new("connect", connect_thread
, s
);
888 cmd
= get_qemu_cmd(s
, 2, TEST_MEMFD_AUTO
, root
, ",server", "");
892 init_virtio_dev(global_qtest
, s
, 1u << VIRTIO_NET_F_MAC
);
893 if (!wait_for_fds(s
)) {
896 wait_for_rings_started(s
, 2);
899 uninit_virtio_dev(s
);
905 static void test_connect_fail(void)
907 gchar
*path
= g_strdup_printf("/%s/vhost-user/connect-fail/subprocess",
909 g_test_trap_subprocess(path
, 0, 0);
910 g_test_trap_assert_passed();
914 static void test_flags_mismatch_subprocess(void)
916 TestServer
*s
= test_server_new("flags-mismatch");
919 s
->test_flags
= TEST_FLAGS_DISCONNECT
;
920 g_thread_new("connect", connect_thread
, s
);
921 cmd
= get_qemu_cmd(s
, 2, TEST_MEMFD_AUTO
, root
, ",server", "");
925 init_virtio_dev(global_qtest
, s
, 1u << VIRTIO_NET_F_MAC
);
926 if (!wait_for_fds(s
)) {
929 wait_for_rings_started(s
, 2);
932 uninit_virtio_dev(s
);
938 static void test_flags_mismatch(void)
940 gchar
*path
= g_strdup_printf("/%s/vhost-user/flags-mismatch/subprocess",
942 g_test_trap_subprocess(path
, 0, 0);
943 g_test_trap_assert_passed();
948 static void test_multiqueue(void)
950 TestServer
*s
= test_server_new("mq");
952 uint32_t features_mask
= ~(QVIRTIO_F_BAD_FEATURE
|
953 (1u << VIRTIO_RING_F_INDIRECT_DESC
) |
954 (1u << VIRTIO_RING_F_EVENT_IDX
));
956 test_server_listen(s
);
958 if (qemu_memfd_check(0)) {
959 cmd
= g_strdup_printf(
960 QEMU_CMD_MEMFD QEMU_CMD_CHR QEMU_CMD_NETDEV
",queues=%d "
961 "-device virtio-net-pci,netdev=net0,mq=on,vectors=%d",
962 512, 512, s
->chr_name
,
963 s
->socket_path
, "", s
->chr_name
,
964 s
->queues
, s
->queues
* 2 + 2);
966 cmd
= g_strdup_printf(
967 QEMU_CMD_MEM QEMU_CMD_CHR QEMU_CMD_NETDEV
",queues=%d "
968 "-device virtio-net-pci,netdev=net0,mq=on,vectors=%d",
969 512, 512, root
, s
->chr_name
,
970 s
->socket_path
, "", s
->chr_name
,
971 s
->queues
, s
->queues
* 2 + 2);
976 init_virtio_dev(global_qtest
, s
, features_mask
);
978 wait_for_rings_started(s
, s
->queues
* 2);
980 uninit_virtio_dev(s
);
987 int main(int argc
, char **argv
)
991 char template[] = "/tmp/vhost-test-XXXXXX";
993 g_test_init(&argc
, &argv
, NULL
);
995 module_call_init(MODULE_INIT_QOM
);
996 qemu_add_opts(&qemu_chardev_opts
);
998 tmpfs
= mkdtemp(template);
1000 g_test_message("mkdtemp on path (%s): %s\n", template, strerror(errno
));
1006 hugefs
= getenv("QTEST_HUGETLBFS_PATH");
1008 root
= init_hugepagefs(hugefs
);
1013 if (qemu_memfd_check(0)) {
1014 qtest_add_data_func("/vhost-user/read-guest-mem/memfd",
1015 GINT_TO_POINTER(TEST_MEMFD_YES
),
1016 test_read_guest_mem
);
1018 qtest_add_data_func("/vhost-user/read-guest-mem/memfile",
1019 GINT_TO_POINTER(TEST_MEMFD_NO
), test_read_guest_mem
);
1020 qtest_add_func("/vhost-user/migrate", test_migrate
);
1021 qtest_add_func("/vhost-user/multiqueue", test_multiqueue
);
1023 /* keeps failing on build-system since Aug 15 2017 */
1024 if (getenv("QTEST_VHOST_USER_FIXME")) {
1025 qtest_add_func("/vhost-user/reconnect/subprocess",
1026 test_reconnect_subprocess
);
1027 qtest_add_func("/vhost-user/reconnect", test_reconnect
);
1028 qtest_add_func("/vhost-user/connect-fail/subprocess",
1029 test_connect_fail_subprocess
);
1030 qtest_add_func("/vhost-user/connect-fail", test_connect_fail
);
1031 qtest_add_func("/vhost-user/flags-mismatch/subprocess",
1032 test_flags_mismatch_subprocess
);
1033 qtest_add_func("/vhost-user/flags-mismatch", test_flags_mismatch
);
1042 g_test_message("unable to rmdir: path (%s): %s\n",
1043 tmpfs
, strerror(errno
));
1045 g_assert_cmpint(ret
, ==, 0);