| /* |
| * QTest testcase for the vhost-user |
| * |
| * Copyright (c) 2014 Virtual Open Systems Sarl. |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| * See the COPYING file in the top-level directory. |
| * |
| */ |
| |
| #include "qemu/osdep.h" |
| |
| #include "libqtest-single.h" |
| #include "qapi/error.h" |
| #include "qapi/qmp/qdict.h" |
| #include "qemu/config-file.h" |
| #include "qemu/option.h" |
| #include "qemu/range.h" |
| #include "qemu/sockets.h" |
| #include "chardev/char-fe.h" |
| #include "qemu/memfd.h" |
| #include "qemu/module.h" |
| #include "sysemu/sysemu.h" |
| #include "libqos/libqos.h" |
| #include "libqos/pci-pc.h" |
| #include "libqos/virtio-pci.h" |
| |
| #include "libqos/malloc-pc.h" |
| #include "hw/virtio/virtio-net.h" |
| |
| #include "standard-headers/linux/vhost_types.h" |
| #include "standard-headers/linux/virtio_ids.h" |
| #include "standard-headers/linux/virtio_net.h" |
| |
| #ifdef CONFIG_LINUX |
| #include <sys/vfs.h> |
| #endif |
| |
| |
| #define QEMU_CMD_MEM " -m %d -object memory-backend-file,id=mem,size=%dM," \ |
| "mem-path=%s,share=on -numa node,memdev=mem" |
| #define QEMU_CMD_MEMFD " -m %d -object memory-backend-memfd,id=mem,size=%dM," \ |
| " -numa node,memdev=mem" |
| #define QEMU_CMD_CHR " -chardev socket,id=%s,path=%s%s" |
| #define QEMU_CMD_NETDEV " -netdev vhost-user,id=hs0,chardev=%s,vhostforce" |
| |
| #define HUGETLBFS_MAGIC 0x958458f6 |
| |
| /*********** FROM hw/virtio/vhost-user.c *************************************/ |
| |
| #define VHOST_MEMORY_MAX_NREGIONS 8 |
| #define VHOST_MAX_VIRTQUEUES 0x100 |
| |
| #define VHOST_USER_F_PROTOCOL_FEATURES 30 |
| #define VHOST_USER_PROTOCOL_F_MQ 0 |
| #define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 |
| #define VHOST_USER_PROTOCOL_F_CROSS_ENDIAN 6 |
| |
| #define VHOST_LOG_PAGE 0x1000 |
| |
| typedef enum VhostUserRequest { |
| VHOST_USER_NONE = 0, |
| VHOST_USER_GET_FEATURES = 1, |
| VHOST_USER_SET_FEATURES = 2, |
| VHOST_USER_SET_OWNER = 3, |
| VHOST_USER_RESET_OWNER = 4, |
| VHOST_USER_SET_MEM_TABLE = 5, |
| VHOST_USER_SET_LOG_BASE = 6, |
| VHOST_USER_SET_LOG_FD = 7, |
| VHOST_USER_SET_VRING_NUM = 8, |
| VHOST_USER_SET_VRING_ADDR = 9, |
| VHOST_USER_SET_VRING_BASE = 10, |
| VHOST_USER_GET_VRING_BASE = 11, |
| VHOST_USER_SET_VRING_KICK = 12, |
| VHOST_USER_SET_VRING_CALL = 13, |
| VHOST_USER_SET_VRING_ERR = 14, |
| VHOST_USER_GET_PROTOCOL_FEATURES = 15, |
| VHOST_USER_SET_PROTOCOL_FEATURES = 16, |
| VHOST_USER_GET_QUEUE_NUM = 17, |
| VHOST_USER_SET_VRING_ENABLE = 18, |
| VHOST_USER_MAX |
| } VhostUserRequest; |
| |
| typedef struct VhostUserMemoryRegion { |
| uint64_t guest_phys_addr; |
| uint64_t memory_size; |
| uint64_t userspace_addr; |
| uint64_t mmap_offset; |
| } VhostUserMemoryRegion; |
| |
| typedef struct VhostUserMemory { |
| uint32_t nregions; |
| uint32_t padding; |
| VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS]; |
| } VhostUserMemory; |
| |
| typedef struct VhostUserLog { |
| uint64_t mmap_size; |
| uint64_t mmap_offset; |
| } VhostUserLog; |
| |
| typedef struct VhostUserMsg { |
| VhostUserRequest request; |
| |
| #define VHOST_USER_VERSION_MASK (0x3) |
| #define VHOST_USER_REPLY_MASK (0x1<<2) |
| uint32_t flags; |
| uint32_t size; /* the following payload size */ |
| union { |
| #define VHOST_USER_VRING_IDX_MASK (0xff) |
| #define VHOST_USER_VRING_NOFD_MASK (0x1<<8) |
| uint64_t u64; |
| struct vhost_vring_state state; |
| struct vhost_vring_addr addr; |
| VhostUserMemory memory; |
| VhostUserLog log; |
| } payload; |
| } QEMU_PACKED VhostUserMsg; |
| |
| static VhostUserMsg m __attribute__ ((unused)); |
| #define VHOST_USER_HDR_SIZE (sizeof(m.request) \ |
| + sizeof(m.flags) \ |
| + sizeof(m.size)) |
| |
| #define VHOST_USER_PAYLOAD_SIZE (sizeof(m) - VHOST_USER_HDR_SIZE) |
| |
| /* The version of the protocol we support */ |
| #define VHOST_USER_VERSION (0x1) |
| /*****************************************************************************/ |
| |
| enum { |
| TEST_FLAGS_OK, |
| TEST_FLAGS_DISCONNECT, |
| TEST_FLAGS_BAD, |
| TEST_FLAGS_END, |
| }; |
| |
| typedef struct TestServer { |
| gchar *socket_path; |
| gchar *mig_path; |
| gchar *chr_name; |
| gchar *tmpfs; |
| CharBackend chr; |
| int fds_num; |
| int fds[VHOST_MEMORY_MAX_NREGIONS]; |
| VhostUserMemory memory; |
| GMainContext *context; |
| GMainLoop *loop; |
| GThread *thread; |
| GMutex data_mutex; |
| GCond data_cond; |
| int log_fd; |
| uint64_t rings; |
| bool test_fail; |
| int test_flags; |
| int queues; |
| } TestServer; |
| |
| static const char *init_hugepagefs(void); |
| static TestServer *test_server_new(const gchar *name); |
| static void test_server_free(TestServer *server); |
| static void test_server_listen(TestServer *server); |
| |
| enum test_memfd { |
| TEST_MEMFD_AUTO, |
| TEST_MEMFD_YES, |
| TEST_MEMFD_NO, |
| }; |
| |
| static void append_vhost_opts(TestServer *s, GString *cmd_line, |
| const char *chr_opts) |
| { |
| g_string_append_printf(cmd_line, QEMU_CMD_CHR QEMU_CMD_NETDEV, |
| s->chr_name, s->socket_path, |
| chr_opts, s->chr_name); |
| } |
| |
| static void append_mem_opts(TestServer *server, GString *cmd_line, |
| int size, enum test_memfd memfd) |
| { |
| if (memfd == TEST_MEMFD_AUTO) { |
| memfd = qemu_memfd_check(MFD_ALLOW_SEALING) ? TEST_MEMFD_YES |
| : TEST_MEMFD_NO; |
| } |
| |
| if (memfd == TEST_MEMFD_YES) { |
| g_string_append_printf(cmd_line, QEMU_CMD_MEMFD, size, size); |
| } else { |
| const char *root = init_hugepagefs() ? : server->tmpfs; |
| |
| g_string_append_printf(cmd_line, QEMU_CMD_MEM, size, size, root); |
| } |
| } |
| |
| static bool wait_for_fds(TestServer *s) |
| { |
| gint64 end_time; |
| bool got_region; |
| int i; |
| |
| g_mutex_lock(&s->data_mutex); |
| |
| end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; |
| while (!s->fds_num) { |
| if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) { |
| /* timeout has passed */ |
| g_assert(s->fds_num); |
| break; |
| } |
| } |
| |
| /* check for sanity */ |
| g_assert_cmpint(s->fds_num, >, 0); |
| g_assert_cmpint(s->fds_num, ==, s->memory.nregions); |
| |
| g_mutex_unlock(&s->data_mutex); |
| |
| got_region = false; |
| for (i = 0; i < s->memory.nregions; ++i) { |
| VhostUserMemoryRegion *reg = &s->memory.regions[i]; |
| if (reg->guest_phys_addr == 0) { |
| got_region = true; |
| break; |
| } |
| } |
| if (!got_region) { |
| g_test_skip("No memory at address 0x0"); |
| } |
| return got_region; |
| } |
| |
| static void read_guest_mem_server(QTestState *qts, TestServer *s) |
| { |
| uint8_t *guest_mem; |
| int i, j; |
| size_t size; |
| |
| g_mutex_lock(&s->data_mutex); |
| |
| /* iterate all regions */ |
| for (i = 0; i < s->fds_num; i++) { |
| |
| /* We'll check only the region statring at 0x0*/ |
| if (s->memory.regions[i].guest_phys_addr != 0x0) { |
| continue; |
| } |
| |
| g_assert_cmpint(s->memory.regions[i].memory_size, >, 1024); |
| |
| size = s->memory.regions[i].memory_size + |
| s->memory.regions[i].mmap_offset; |
| |
| guest_mem = mmap(0, size, PROT_READ | PROT_WRITE, |
| MAP_SHARED, s->fds[i], 0); |
| |
| g_assert(guest_mem != MAP_FAILED); |
| guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem)); |
| |
| for (j = 0; j < 1024; j++) { |
| uint32_t a = qtest_readb(qts, s->memory.regions[i].guest_phys_addr + j); |
| uint32_t b = guest_mem[j]; |
| |
| g_assert_cmpint(a, ==, b); |
| } |
| |
| munmap(guest_mem, s->memory.regions[i].memory_size); |
| } |
| |
| g_mutex_unlock(&s->data_mutex); |
| } |
| |
| static void *thread_function(void *data) |
| { |
| GMainLoop *loop = data; |
| g_main_loop_run(loop); |
| return NULL; |
| } |
| |
| static int chr_can_read(void *opaque) |
| { |
| return VHOST_USER_HDR_SIZE; |
| } |
| |
| static void chr_read(void *opaque, const uint8_t *buf, int size) |
| { |
| TestServer *s = opaque; |
| CharBackend *chr = &s->chr; |
| VhostUserMsg msg; |
| uint8_t *p = (uint8_t *) &msg; |
| int fd = -1; |
| |
| if (s->test_fail) { |
| qemu_chr_fe_disconnect(chr); |
| /* now switch to non-failure */ |
| s->test_fail = false; |
| } |
| |
| if (size != VHOST_USER_HDR_SIZE) { |
| g_test_message("Wrong message size received %d", size); |
| return; |
| } |
| |
| g_mutex_lock(&s->data_mutex); |
| memcpy(p, buf, VHOST_USER_HDR_SIZE); |
| |
| if (msg.size) { |
| p += VHOST_USER_HDR_SIZE; |
| size = qemu_chr_fe_read_all(chr, p, msg.size); |
| if (size != msg.size) { |
| g_test_message("Wrong message size received %d != %d", |
| size, msg.size); |
| return; |
| } |
| } |
| |
| switch (msg.request) { |
| case VHOST_USER_GET_FEATURES: |
| /* send back features to qemu */ |
| msg.flags |= VHOST_USER_REPLY_MASK; |
| msg.size = sizeof(m.payload.u64); |
| msg.payload.u64 = 0x1ULL << VHOST_F_LOG_ALL | |
| 0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES; |
| if (s->queues > 1) { |
| msg.payload.u64 |= 0x1ULL << VIRTIO_NET_F_MQ; |
| } |
| if (s->test_flags >= TEST_FLAGS_BAD) { |
| msg.payload.u64 = 0; |
| s->test_flags = TEST_FLAGS_END; |
| } |
| p = (uint8_t *) &msg; |
| qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size); |
| break; |
| |
| case VHOST_USER_SET_FEATURES: |
| g_assert_cmpint(msg.payload.u64 & (0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES), |
| !=, 0ULL); |
| if (s->test_flags == TEST_FLAGS_DISCONNECT) { |
| qemu_chr_fe_disconnect(chr); |
| s->test_flags = TEST_FLAGS_BAD; |
| } |
| break; |
| |
| case VHOST_USER_GET_PROTOCOL_FEATURES: |
| /* send back features to qemu */ |
| msg.flags |= VHOST_USER_REPLY_MASK; |
| msg.size = sizeof(m.payload.u64); |
| msg.payload.u64 = 1 << VHOST_USER_PROTOCOL_F_LOG_SHMFD; |
| msg.payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_CROSS_ENDIAN; |
| if (s->queues > 1) { |
| msg.payload.u64 |= 1 << VHOST_USER_PROTOCOL_F_MQ; |
| } |
| p = (uint8_t *) &msg; |
| qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size); |
| break; |
| |
| case VHOST_USER_GET_VRING_BASE: |
| /* send back vring base to qemu */ |
| msg.flags |= VHOST_USER_REPLY_MASK; |
| msg.size = sizeof(m.payload.state); |
| msg.payload.state.num = 0; |
| p = (uint8_t *) &msg; |
| qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size); |
| |
| assert(msg.payload.state.index < s->queues * 2); |
| s->rings &= ~(0x1ULL << msg.payload.state.index); |
| g_cond_broadcast(&s->data_cond); |
| break; |
| |
| case VHOST_USER_SET_MEM_TABLE: |
| /* received the mem table */ |
| memcpy(&s->memory, &msg.payload.memory, sizeof(msg.payload.memory)); |
| s->fds_num = qemu_chr_fe_get_msgfds(chr, s->fds, |
| G_N_ELEMENTS(s->fds)); |
| |
| /* signal the test that it can continue */ |
| g_cond_broadcast(&s->data_cond); |
| break; |
| |
| case VHOST_USER_SET_VRING_KICK: |
| case VHOST_USER_SET_VRING_CALL: |
| /* consume the fd */ |
| qemu_chr_fe_get_msgfds(chr, &fd, 1); |
| /* |
| * This is a non-blocking eventfd. |
| * The receive function forces it to be blocking, |
| * so revert it back to non-blocking. |
| */ |
| qemu_set_nonblock(fd); |
| break; |
| |
| case VHOST_USER_SET_LOG_BASE: |
| if (s->log_fd != -1) { |
| close(s->log_fd); |
| s->log_fd = -1; |
| } |
| qemu_chr_fe_get_msgfds(chr, &s->log_fd, 1); |
| msg.flags |= VHOST_USER_REPLY_MASK; |
| msg.size = 0; |
| p = (uint8_t *) &msg; |
| qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE); |
| |
| g_cond_broadcast(&s->data_cond); |
| break; |
| |
| case VHOST_USER_SET_VRING_BASE: |
| assert(msg.payload.state.index < s->queues * 2); |
| s->rings |= 0x1ULL << msg.payload.state.index; |
| g_cond_broadcast(&s->data_cond); |
| break; |
| |
| case VHOST_USER_GET_QUEUE_NUM: |
| msg.flags |= VHOST_USER_REPLY_MASK; |
| msg.size = sizeof(m.payload.u64); |
| msg.payload.u64 = s->queues; |
| p = (uint8_t *) &msg; |
| qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size); |
| break; |
| |
| default: |
| break; |
| } |
| |
| g_mutex_unlock(&s->data_mutex); |
| } |
| |
| static const char *init_hugepagefs(void) |
| { |
| #ifdef CONFIG_LINUX |
| static const char *hugepagefs; |
| const char *path = getenv("QTEST_HUGETLBFS_PATH"); |
| struct statfs fs; |
| int ret; |
| |
| if (hugepagefs) { |
| return hugepagefs; |
| } |
| if (!path) { |
| return NULL; |
| } |
| |
| if (access(path, R_OK | W_OK | X_OK)) { |
| g_test_message("access on path (%s): %s", path, strerror(errno)); |
| g_test_fail(); |
| return NULL; |
| } |
| |
| do { |
| ret = statfs(path, &fs); |
| } while (ret != 0 && errno == EINTR); |
| |
| if (ret != 0) { |
| g_test_message("statfs on path (%s): %s", path, strerror(errno)); |
| g_test_fail(); |
| return NULL; |
| } |
| |
| if (fs.f_type != HUGETLBFS_MAGIC) { |
| g_test_message("Warning: path not on HugeTLBFS: %s", path); |
| g_test_fail(); |
| return NULL; |
| } |
| |
| hugepagefs = path; |
| return hugepagefs; |
| #else |
| return NULL; |
| #endif |
| } |
| |
| static TestServer *test_server_new(const gchar *name) |
| { |
| TestServer *server = g_new0(TestServer, 1); |
| char template[] = "/tmp/vhost-test-XXXXXX"; |
| const char *tmpfs; |
| |
| server->context = g_main_context_new(); |
| server->loop = g_main_loop_new(server->context, FALSE); |
| |
| /* run the main loop thread so the chardev may operate */ |
| server->thread = g_thread_new(NULL, thread_function, server->loop); |
| |
| tmpfs = mkdtemp(template); |
| if (!tmpfs) { |
| g_test_message("mkdtemp on path (%s): %s", template, strerror(errno)); |
| } |
| g_assert(tmpfs); |
| |
| server->tmpfs = g_strdup(tmpfs); |
| server->socket_path = g_strdup_printf("%s/%s.sock", tmpfs, name); |
| server->mig_path = g_strdup_printf("%s/%s.mig", tmpfs, name); |
| server->chr_name = g_strdup_printf("chr-%s", name); |
| |
| g_mutex_init(&server->data_mutex); |
| g_cond_init(&server->data_cond); |
| |
| server->log_fd = -1; |
| server->queues = 1; |
| |
| return server; |
| } |
| |
| static void chr_event(void *opaque, QEMUChrEvent event) |
| { |
| TestServer *s = opaque; |
| |
| if (s->test_flags == TEST_FLAGS_END && |
| event == CHR_EVENT_CLOSED) { |
| s->test_flags = TEST_FLAGS_OK; |
| } |
| } |
| |
| static void test_server_create_chr(TestServer *server, const gchar *opt) |
| { |
| gchar *chr_path; |
| Chardev *chr; |
| |
| chr_path = g_strdup_printf("unix:%s%s", server->socket_path, opt); |
| chr = qemu_chr_new(server->chr_name, chr_path, server->context); |
| g_free(chr_path); |
| |
| g_assert_nonnull(chr); |
| qemu_chr_fe_init(&server->chr, chr, &error_abort); |
| qemu_chr_fe_set_handlers(&server->chr, chr_can_read, chr_read, |
| chr_event, NULL, server, server->context, true); |
| } |
| |
| static void test_server_listen(TestServer *server) |
| { |
| test_server_create_chr(server, ",server,nowait"); |
| } |
| |
| static void test_server_free(TestServer *server) |
| { |
| int i, ret; |
| |
| /* finish the helper thread and dispatch pending sources */ |
| g_main_loop_quit(server->loop); |
| g_thread_join(server->thread); |
| while (g_main_context_pending(NULL)) { |
| g_main_context_iteration(NULL, TRUE); |
| } |
| |
| unlink(server->socket_path); |
| g_free(server->socket_path); |
| |
| unlink(server->mig_path); |
| g_free(server->mig_path); |
| |
| ret = rmdir(server->tmpfs); |
| if (ret != 0) { |
| g_test_message("unable to rmdir: path (%s): %s", |
| server->tmpfs, strerror(errno)); |
| } |
| g_free(server->tmpfs); |
| |
| qemu_chr_fe_deinit(&server->chr, true); |
| |
| for (i = 0; i < server->fds_num; i++) { |
| close(server->fds[i]); |
| } |
| |
| if (server->log_fd != -1) { |
| close(server->log_fd); |
| } |
| |
| g_free(server->chr_name); |
| |
| g_main_loop_unref(server->loop); |
| g_main_context_unref(server->context); |
| g_cond_clear(&server->data_cond); |
| g_mutex_clear(&server->data_mutex); |
| g_free(server); |
| } |
| |
| static void wait_for_log_fd(TestServer *s) |
| { |
| gint64 end_time; |
| |
| g_mutex_lock(&s->data_mutex); |
| end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; |
| while (s->log_fd == -1) { |
| if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) { |
| /* timeout has passed */ |
| g_assert(s->log_fd != -1); |
| break; |
| } |
| } |
| |
| g_mutex_unlock(&s->data_mutex); |
| } |
| |
| static void write_guest_mem(TestServer *s, uint32_t seed) |
| { |
| uint32_t *guest_mem; |
| int i, j; |
| size_t size; |
| |
| /* iterate all regions */ |
| for (i = 0; i < s->fds_num; i++) { |
| |
| /* We'll write only the region statring at 0x0 */ |
| if (s->memory.regions[i].guest_phys_addr != 0x0) { |
| continue; |
| } |
| |
| g_assert_cmpint(s->memory.regions[i].memory_size, >, 1024); |
| |
| size = s->memory.regions[i].memory_size + |
| s->memory.regions[i].mmap_offset; |
| |
| guest_mem = mmap(0, size, PROT_READ | PROT_WRITE, |
| MAP_SHARED, s->fds[i], 0); |
| |
| g_assert(guest_mem != MAP_FAILED); |
| guest_mem += (s->memory.regions[i].mmap_offset / sizeof(*guest_mem)); |
| |
| for (j = 0; j < 256; j++) { |
| guest_mem[j] = seed + j; |
| } |
| |
| munmap(guest_mem, s->memory.regions[i].memory_size); |
| break; |
| } |
| } |
| |
| static guint64 get_log_size(TestServer *s) |
| { |
| guint64 log_size = 0; |
| int i; |
| |
| for (i = 0; i < s->memory.nregions; ++i) { |
| VhostUserMemoryRegion *reg = &s->memory.regions[i]; |
| guint64 last = range_get_last(reg->guest_phys_addr, |
| reg->memory_size); |
| log_size = MAX(log_size, last / (8 * VHOST_LOG_PAGE) + 1); |
| } |
| |
| return log_size; |
| } |
| |
| typedef struct TestMigrateSource { |
| GSource source; |
| TestServer *src; |
| TestServer *dest; |
| } TestMigrateSource; |
| |
| static gboolean |
| test_migrate_source_check(GSource *source) |
| { |
| TestMigrateSource *t = (TestMigrateSource *)source; |
| gboolean overlap = t->src->rings && t->dest->rings; |
| |
| g_assert(!overlap); |
| |
| return FALSE; |
| } |
| |
| GSourceFuncs test_migrate_source_funcs = { |
| .check = test_migrate_source_check, |
| }; |
| |
| static void vhost_user_test_cleanup(void *s) |
| { |
| TestServer *server = s; |
| |
| qos_invalidate_command_line(); |
| test_server_free(server); |
| } |
| |
| static void *vhost_user_test_setup(GString *cmd_line, void *arg) |
| { |
| TestServer *server = test_server_new("vhost-user-test"); |
| test_server_listen(server); |
| |
| append_mem_opts(server, cmd_line, 256, TEST_MEMFD_AUTO); |
| append_vhost_opts(server, cmd_line, ""); |
| |
| g_test_queue_destroy(vhost_user_test_cleanup, server); |
| |
| return server; |
| } |
| |
| static void *vhost_user_test_setup_memfd(GString *cmd_line, void *arg) |
| { |
| TestServer *server = test_server_new("vhost-user-test"); |
| test_server_listen(server); |
| |
| append_mem_opts(server, cmd_line, 256, TEST_MEMFD_YES); |
| append_vhost_opts(server, cmd_line, ""); |
| |
| g_test_queue_destroy(vhost_user_test_cleanup, server); |
| |
| return server; |
| } |
| |
| static void test_read_guest_mem(void *obj, void *arg, QGuestAllocator *alloc) |
| { |
| TestServer *server = arg; |
| |
| if (!wait_for_fds(server)) { |
| return; |
| } |
| |
| read_guest_mem_server(global_qtest, server); |
| } |
| |
| static void test_migrate(void *obj, void *arg, QGuestAllocator *alloc) |
| { |
| TestServer *s = arg; |
| TestServer *dest; |
| GString *dest_cmdline; |
| char *uri; |
| QTestState *to; |
| GSource *source; |
| QDict *rsp; |
| guint8 *log; |
| guint64 size; |
| |
| if (!wait_for_fds(s)) { |
| return; |
| } |
| |
| dest = test_server_new("dest"); |
| dest_cmdline = g_string_new(qos_get_current_command_line()); |
| uri = g_strdup_printf("%s%s", "unix:", dest->mig_path); |
| |
| size = get_log_size(s); |
| g_assert_cmpint(size, ==, (256 * 1024 * 1024) / (VHOST_LOG_PAGE * 8)); |
| |
| test_server_listen(dest); |
| g_string_append_printf(dest_cmdline, " -incoming %s", uri); |
| append_mem_opts(dest, dest_cmdline, 256, TEST_MEMFD_AUTO); |
| append_vhost_opts(dest, dest_cmdline, ""); |
| to = qtest_init(dest_cmdline->str); |
| |
| /* This would be where you call qos_allocate_objects(to, NULL), if you want |
| * to talk to the QVirtioNet object on the destination. |
| */ |
| |
| source = g_source_new(&test_migrate_source_funcs, |
| sizeof(TestMigrateSource)); |
| ((TestMigrateSource *)source)->src = s; |
| ((TestMigrateSource *)source)->dest = dest; |
| g_source_attach(source, s->context); |
| |
| /* slow down migration to have time to fiddle with log */ |
| /* TODO: qtest could learn to break on some places */ |
| rsp = qmp("{ 'execute': 'migrate_set_speed'," |
| "'arguments': { 'value': 10 } }"); |
| g_assert(qdict_haskey(rsp, "return")); |
| qobject_unref(rsp); |
| |
| rsp = qmp("{ 'execute': 'migrate', 'arguments': { 'uri': %s } }", uri); |
| g_assert(qdict_haskey(rsp, "return")); |
| qobject_unref(rsp); |
| |
| wait_for_log_fd(s); |
| |
| log = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, s->log_fd, 0); |
| g_assert(log != MAP_FAILED); |
| |
| /* modify first page */ |
| write_guest_mem(s, 0x42); |
| log[0] = 1; |
| munmap(log, size); |
| |
| /* speed things up */ |
| rsp = qmp("{ 'execute': 'migrate_set_speed'," |
| "'arguments': { 'value': 0 } }"); |
| g_assert(qdict_haskey(rsp, "return")); |
| qobject_unref(rsp); |
| |
| qmp_eventwait("STOP"); |
| qtest_qmp_eventwait(to, "RESUME"); |
| |
| g_assert(wait_for_fds(dest)); |
| read_guest_mem_server(to, dest); |
| |
| g_source_destroy(source); |
| g_source_unref(source); |
| |
| qtest_quit(to); |
| test_server_free(dest); |
| g_free(uri); |
| g_string_free(dest_cmdline, true); |
| } |
| |
| static void wait_for_rings_started(TestServer *s, size_t count) |
| { |
| gint64 end_time; |
| |
| g_mutex_lock(&s->data_mutex); |
| end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; |
| while (ctpop64(s->rings) != count) { |
| if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) { |
| /* timeout has passed */ |
| g_assert_cmpint(ctpop64(s->rings), ==, count); |
| break; |
| } |
| } |
| |
| g_mutex_unlock(&s->data_mutex); |
| } |
| |
| static inline void test_server_connect(TestServer *server) |
| { |
| test_server_create_chr(server, ",reconnect=1"); |
| } |
| |
| static gboolean |
| reconnect_cb(gpointer user_data) |
| { |
| TestServer *s = user_data; |
| |
| qemu_chr_fe_disconnect(&s->chr); |
| |
| return FALSE; |
| } |
| |
| static gpointer |
| connect_thread(gpointer data) |
| { |
| TestServer *s = data; |
| |
| /* wait for qemu to start before first try, to avoid extra warnings */ |
| g_usleep(G_USEC_PER_SEC); |
| test_server_connect(s); |
| |
| return NULL; |
| } |
| |
| static void *vhost_user_test_setup_reconnect(GString *cmd_line, void *arg) |
| { |
| TestServer *s = test_server_new("reconnect"); |
| |
| g_thread_new("connect", connect_thread, s); |
| append_mem_opts(s, cmd_line, 256, TEST_MEMFD_AUTO); |
| append_vhost_opts(s, cmd_line, ",server"); |
| |
| g_test_queue_destroy(vhost_user_test_cleanup, s); |
| |
| return s; |
| } |
| |
| static void test_reconnect(void *obj, void *arg, QGuestAllocator *alloc) |
| { |
| TestServer *s = arg; |
| GSource *src; |
| |
| if (!wait_for_fds(s)) { |
| return; |
| } |
| |
| wait_for_rings_started(s, 2); |
| |
| /* reconnect */ |
| s->fds_num = 0; |
| s->rings = 0; |
| src = g_idle_source_new(); |
| g_source_set_callback(src, reconnect_cb, s, NULL); |
| g_source_attach(src, s->context); |
| g_source_unref(src); |
| g_assert(wait_for_fds(s)); |
| wait_for_rings_started(s, 2); |
| } |
| |
| static void *vhost_user_test_setup_connect_fail(GString *cmd_line, void *arg) |
| { |
| TestServer *s = test_server_new("connect-fail"); |
| |
| s->test_fail = true; |
| |
| g_thread_new("connect", connect_thread, s); |
| append_mem_opts(s, cmd_line, 256, TEST_MEMFD_AUTO); |
| append_vhost_opts(s, cmd_line, ",server"); |
| |
| g_test_queue_destroy(vhost_user_test_cleanup, s); |
| |
| return s; |
| } |
| |
| static void *vhost_user_test_setup_flags_mismatch(GString *cmd_line, void *arg) |
| { |
| TestServer *s = test_server_new("flags-mismatch"); |
| |
| s->test_flags = TEST_FLAGS_DISCONNECT; |
| |
| g_thread_new("connect", connect_thread, s); |
| append_mem_opts(s, cmd_line, 256, TEST_MEMFD_AUTO); |
| append_vhost_opts(s, cmd_line, ",server"); |
| |
| g_test_queue_destroy(vhost_user_test_cleanup, s); |
| |
| return s; |
| } |
| |
| static void test_vhost_user_started(void *obj, void *arg, QGuestAllocator *alloc) |
| { |
| TestServer *s = arg; |
| |
| if (!wait_for_fds(s)) { |
| return; |
| } |
| wait_for_rings_started(s, 2); |
| } |
| |
| static void *vhost_user_test_setup_multiqueue(GString *cmd_line, void *arg) |
| { |
| TestServer *s = vhost_user_test_setup(cmd_line, arg); |
| |
| s->queues = 2; |
| g_string_append_printf(cmd_line, |
| " -set netdev.hs0.queues=%d" |
| " -global virtio-net-pci.vectors=%d", |
| s->queues, s->queues * 2 + 2); |
| |
| return s; |
| } |
| |
| static void test_multiqueue(void *obj, void *arg, QGuestAllocator *alloc) |
| { |
| TestServer *s = arg; |
| |
| wait_for_rings_started(s, s->queues * 2); |
| } |
| |
| static void register_vhost_user_test(void) |
| { |
| QOSGraphTestOptions opts = { |
| .before = vhost_user_test_setup, |
| .subprocess = true, |
| }; |
| |
| qemu_add_opts(&qemu_chardev_opts); |
| |
| qos_add_test("vhost-user/read-guest-mem/memfile", |
| "virtio-net", |
| test_read_guest_mem, &opts); |
| |
| if (qemu_memfd_check(MFD_ALLOW_SEALING)) { |
| opts.before = vhost_user_test_setup_memfd; |
| qos_add_test("vhost-user/read-guest-mem/memfd", |
| "virtio-net", |
| test_read_guest_mem, &opts); |
| } |
| |
| qos_add_test("vhost-user/migrate", |
| "virtio-net", |
| test_migrate, &opts); |
| |
| /* keeps failing on build-system since Aug 15 2017 */ |
| if (getenv("QTEST_VHOST_USER_FIXME")) { |
| opts.before = vhost_user_test_setup_reconnect; |
| qos_add_test("vhost-user/reconnect", "virtio-net", |
| test_reconnect, &opts); |
| |
| opts.before = vhost_user_test_setup_connect_fail; |
| qos_add_test("vhost-user/connect-fail", "virtio-net", |
| test_vhost_user_started, &opts); |
| |
| opts.before = vhost_user_test_setup_flags_mismatch; |
| qos_add_test("vhost-user/flags-mismatch", "virtio-net", |
| test_vhost_user_started, &opts); |
| } |
| |
| opts.before = vhost_user_test_setup_multiqueue; |
| opts.edge.extra_device_opts = "mq=on"; |
| qos_add_test("vhost-user/multiqueue", |
| "virtio-net", |
| test_multiqueue, &opts); |
| } |
| libqos_init(register_vhost_user_test); |