void process_incoming_migration(QEMUFile *f);
-int qemu_start_incoming_migration(const char *uri, Error **errp);
+void qemu_start_incoming_migration(const char *uri, Error **errp);
uint64_t migrate_max_downtime(void);
void do_info_migrate(Monitor *mon, QObject **ret_data);
-int exec_start_incoming_migration(const char *host_port);
+void exec_start_incoming_migration(const char *host_port, Error **errp);
void exec_start_outgoing_migration(MigrationState *s, const char *host_port, Error **errp);
-int tcp_start_incoming_migration(const char *host_port, Error **errp);
+void tcp_start_incoming_migration(const char *host_port, Error **errp);
void tcp_start_outgoing_migration(MigrationState *s, const char *host_port, Error **errp);
-int unix_start_incoming_migration(const char *path, Error **errp);
+void unix_start_incoming_migration(const char *path, Error **errp);
void unix_start_outgoing_migration(MigrationState *s, const char *path, Error **errp);
-int fd_start_incoming_migration(const char *path);
+void fd_start_incoming_migration(const char *path, Error **errp);
void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp);