diff --git a/migration/migration.c b/migration/migration.c index 70725a89ab..10a6f2fb12 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -458,9 +458,10 @@ void migrate_add_address(SocketAddress *address) } static bool migrate_uri_parse(const char *uri, - MigrationAddress **channel, + MigrationChannel **channel, Error **errp) { + g_autoptr(MigrationChannel) val = g_new0(MigrationChannel, 1); g_autoptr(MigrationAddress) addr = g_new0(MigrationAddress, 1); SocketAddress *saddr = NULL; InetSocketAddress *isock = &addr->u.rdma; @@ -505,7 +506,9 @@ static bool migrate_uri_parse(const char *uri, return false; } - *channel = g_steal_pointer(&addr); + val->channel_type = MIGRATION_CHANNEL_TYPE_MAIN; + val->addr = g_steal_pointer(&addr); + *channel = g_steal_pointer(&val); return true; } @@ -513,44 +516,47 @@ static void qemu_start_incoming_migration(const char *uri, bool has_channels, MigrationChannelList *channels, Error **errp) { - g_autoptr(MigrationAddress) channel = NULL; + MigrationChannel *channel = NULL; + MigrationAddress *addr = NULL; MigrationIncomingState *mis = migration_incoming_get_current(); /* * Having preliminary checks for uri and channel */ - if (has_channels) { - error_setg(errp, "'channels' argument should not be set yet."); - return; - } - if (uri && has_channels) { error_setg(errp, "'uri' and 'channels' arguments are mutually " "exclusive; exactly one of the two should be present in " "'migrate-incoming' qmp command "); return; - } - - if (!uri && !has_channels) { + } else if (channels) { + /* To verify that Migrate channel list has only item */ + if (channels->next) { + error_setg(errp, "Channel list has more than one entries"); + return; + } + channel = channels->value; + } else if (uri) { + /* caller uses the old URI syntax */ + if (!migrate_uri_parse(uri, &channel, errp)) { + return; + } + } else { error_setg(errp, "neither 'uri' or 'channels' argument are " "specified in 'migrate-incoming' qmp command "); return; } - - if (uri && !migrate_uri_parse(uri, &channel, errp)) { - return; - } + addr = channel->addr; /* transport mechanism not suitable for migration? */ - if (!migration_channels_and_transport_compatible(channel, errp)) { + if (!migration_channels_and_transport_compatible(addr, errp)) { return; } migrate_set_state(&mis->state, MIGRATION_STATUS_NONE, MIGRATION_STATUS_SETUP); - if (channel->transport == MIGRATION_ADDRESS_TYPE_SOCKET) { - SocketAddress *saddr = &channel->u.socket; + if (addr->transport == MIGRATION_ADDRESS_TYPE_SOCKET) { + SocketAddress *saddr = &addr->u.socket; if (saddr->type == SOCKET_ADDRESS_TYPE_INET || saddr->type == SOCKET_ADDRESS_TYPE_UNIX || saddr->type == SOCKET_ADDRESS_TYPE_VSOCK) { @@ -559,7 +565,7 @@ static void qemu_start_incoming_migration(const char *uri, bool has_channels, fd_start_incoming_migration(saddr->u.fd.str, errp); } #ifdef CONFIG_RDMA - } else if (channel->transport == MIGRATION_ADDRESS_TYPE_RDMA) { + } else if (addr->transport == MIGRATION_ADDRESS_TYPE_RDMA) { if (migrate_compress()) { error_setg(errp, "RDMA and compression can't be used together"); return; @@ -572,12 +578,12 @@ static void qemu_start_incoming_migration(const char *uri, bool has_channels, error_setg(errp, "RDMA and multifd can't be used together"); return; } - rdma_start_incoming_migration(&channel->u.rdma, errp); + rdma_start_incoming_migration(&addr->u.rdma, errp); #endif - } else if (channel->transport == MIGRATION_ADDRESS_TYPE_EXEC) { - exec_start_incoming_migration(channel->u.exec.args, errp); - } else if (channel->transport == MIGRATION_ADDRESS_TYPE_FILE) { - file_start_incoming_migration(&channel->u.file, errp); + } else if (addr->transport == MIGRATION_ADDRESS_TYPE_EXEC) { + exec_start_incoming_migration(addr->u.exec.args, errp); + } else if (addr->transport == MIGRATION_ADDRESS_TYPE_FILE) { + file_start_incoming_migration(&addr->u.file, errp); } else { error_setg(errp, "unknown migration protocol: %s", uri); } @@ -1927,35 +1933,38 @@ void qmp_migrate(const char *uri, bool has_channels, bool resume_requested; Error *local_err = NULL; MigrationState *s = migrate_get_current(); - g_autoptr(MigrationAddress) channel = NULL; + MigrationChannel *channel = NULL; + MigrationAddress *addr = NULL; /* * Having preliminary checks for uri and channel */ - if (has_channels) { - error_setg(errp, "'channels' argument should not be set yet."); - return; - } - if (uri && has_channels) { error_setg(errp, "'uri' and 'channels' arguments are mutually " "exclusive; exactly one of the two should be present in " "'migrate' qmp command "); return; - } - - if (!uri && !has_channels) { + } else if (channels) { + /* To verify that Migrate channel list has only item */ + if (channels->next) { + error_setg(errp, "Channel list has more than one entries"); + return; + } + channel = channels->value; + } else if (uri) { + /* caller uses the old URI syntax */ + if (!migrate_uri_parse(uri, &channel, errp)) { + return; + } + } else { error_setg(errp, "neither 'uri' or 'channels' argument are " "specified in 'migrate' qmp command "); return; } - - if (!migrate_uri_parse(uri, &channel, errp)) { - return; - } + addr = channel->addr; /* transport mechanism not suitable for migration? */ - if (!migration_channels_and_transport_compatible(channel, errp)) { + if (!migration_channels_and_transport_compatible(addr, errp)) { return; } @@ -1972,8 +1981,8 @@ void qmp_migrate(const char *uri, bool has_channels, } } - if (channel->transport == MIGRATION_ADDRESS_TYPE_SOCKET) { - SocketAddress *saddr = &channel->u.socket; + if (addr->transport == MIGRATION_ADDRESS_TYPE_SOCKET) { + SocketAddress *saddr = &addr->u.socket; if (saddr->type == SOCKET_ADDRESS_TYPE_INET || saddr->type == SOCKET_ADDRESS_TYPE_UNIX || saddr->type == SOCKET_ADDRESS_TYPE_VSOCK) { @@ -1982,13 +1991,13 @@ void qmp_migrate(const char *uri, bool has_channels, fd_start_outgoing_migration(s, saddr->u.fd.str, &local_err); } #ifdef CONFIG_RDMA - } else if (channel->transport == MIGRATION_ADDRESS_TYPE_RDMA) { - rdma_start_outgoing_migration(s, &channel->u.rdma, &local_err); + } else if (addr->transport == MIGRATION_ADDRESS_TYPE_RDMA) { + rdma_start_outgoing_migration(s, &addr->u.rdma, &local_err); #endif - } else if (channel->transport == MIGRATION_ADDRESS_TYPE_EXEC) { - exec_start_outgoing_migration(s, channel->u.exec.args, &local_err); - } else if (channel->transport == MIGRATION_ADDRESS_TYPE_FILE) { - file_start_outgoing_migration(s, &channel->u.file, &local_err); + } else if (addr->transport == MIGRATION_ADDRESS_TYPE_EXEC) { + exec_start_outgoing_migration(s, addr->u.exec.args, &local_err); + } else if (addr->transport == MIGRATION_ADDRESS_TYPE_FILE) { + file_start_outgoing_migration(s, &addr->u.file, &local_err); } else { error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "uri", "a valid migration protocol");