diff options
Diffstat (limited to 'tests/qtest/vhost-user-test.c')
| -rw-r--r-- | tests/qtest/vhost-user-test.c | 967 |
1 files changed, 967 insertions, 0 deletions
diff --git a/tests/qtest/vhost-user-test.c b/tests/qtest/vhost-user-test.c new file mode 100644 index 0000000000..91ea373ba5 --- /dev/null +++ b/tests/qtest/vhost-user-test.c @@ -0,0 +1,967 @@ +/* + * 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, int 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 = test_server_new("dest"); + GString *dest_cmdline = g_string_new(qos_get_current_command_line()); + char *uri = g_strdup_printf("%s%s", "unix:", dest->mig_path); + QTestState *to; + GSource *source; + QDict *rsp; + guint8 *log; + guint64 size; + + if (!wait_for_fds(s)) { + return; + } + + 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); +} + +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); |