--- /dev/null
-static void chr_event(void *opaque, int event)
+ /*
+ * 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 = 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);
projects / mirror_qemu.git / commitdiff