Esempio n. 1
0
void do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
    MigrationState *s = NULL;
    const char *p;
    int detach = qdict_get_int(qdict, "detach");
    const char *uri = qdict_get_str(qdict, "uri");

    if (strstart(uri, "tcp:", &p))
        s = tcp_start_outgoing_migration(p, max_throttle, detach);
#if !defined(WIN32)
    else if (strstart(uri, "exec:", &p))
        s = exec_start_outgoing_migration(p, max_throttle, detach);
    else if (strstart(uri, "unix:", &p))
        s = unix_start_outgoing_migration(p, max_throttle, detach);
    else if (strstart(uri, "fd:", &p))
        s = fd_start_outgoing_migration(mon, p, max_throttle, detach);
#endif
    else
        monitor_printf(mon, "unknown migration protocol: %s\n", uri);

    if (s == NULL)
        monitor_printf(mon, "migration failed\n");
    else {
        if (current_migration)
            current_migration->release(current_migration);

        current_migration = s;
    }
}
Esempio n. 2
0
void qmp_migrate(const char *uri, bool has_blk, bool blk,
                 bool has_inc, bool inc, bool has_detach, bool detach,
                 Error **errp)
{
    Error *local_err = NULL;
    MigrationState *s = migrate_get_current();
    MigrationParams params;
    const char *p;

    params.blk = has_blk && blk;
    params.shared = has_inc && inc;

    if (s->state == MIG_STATE_ACTIVE || s->state == MIG_STATE_SETUP ||
        s->state == MIG_STATE_CANCELLING) {
        error_set(errp, QERR_MIGRATION_ACTIVE);
        return;
    }

    if (runstate_check(RUN_STATE_INMIGRATE)) {
        error_setg(errp, "Guest is waiting for an incoming migration");
        return;
    }

    if (qemu_savevm_state_blocked(errp)) {
        return;
    }

    if (migration_blockers) {
        *errp = error_copy(migration_blockers->data);
        return;
    }

    s = migrate_init(&params);

    if (strstart(uri, "tcp:", &p)) {
        tcp_start_outgoing_migration(s, p, &local_err);
#ifdef CONFIG_RDMA
    } else if (strstart(uri, "rdma:", &p)) {
        rdma_start_outgoing_migration(s, p, &local_err);
#endif
#if !defined(WIN32)
    } else if (strstart(uri, "exec:", &p)) {
        exec_start_outgoing_migration(s, p, &local_err);
    } else if (strstart(uri, "unix:", &p)) {
        unix_start_outgoing_migration(s, p, &local_err);
    } else if (strstart(uri, "fd:", &p)) {
        fd_start_outgoing_migration(s, p, &local_err);
#endif
    } else {
        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "uri", "a valid migration protocol");
        s->state = MIG_STATE_ERROR;
        return;
    }

    if (local_err) {
        migrate_fd_error(s);
        error_propagate(errp, local_err);
        return;
    }
}
Esempio n. 3
0
int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
    MigrationState *s = NULL;
    const char *p;
    int detach = qdict_get_try_bool(qdict, "detach", 0);
    int blk = qdict_get_try_bool(qdict, "blk", 0);
    int inc = qdict_get_try_bool(qdict, "inc", 0);
    const char *uri = qdict_get_str(qdict, "uri");

    if (current_migration &&
        current_migration->get_status(current_migration) == MIG_STATE_ACTIVE) {
        monitor_printf(mon, "migration already in progress\n");
        return -1;
    }

    if (qemu_savevm_state_blocked(mon)) {
        return -1;
    }

    /* check ft_mode (Kemari protocol) */
    if (strstart(uri, "kemari:", &p)) {
        ft_mode = FT_INIT;
        uri = p;
    }

    if (strstart(uri, "tcp:", &p)) {
        s = tcp_start_outgoing_migration(mon, p, max_throttle, detach,
                                         blk, inc);
#if !defined(WIN32)
    } else if (strstart(uri, "exec:", &p)) {
        s = exec_start_outgoing_migration(mon, p, max_throttle, detach,
                                          blk, inc);
    } else if (strstart(uri, "unix:", &p)) {
        s = unix_start_outgoing_migration(mon, p, max_throttle, detach,
                                          blk, inc);
    } else if (strstart(uri, "fd:", &p)) {
        s = fd_start_outgoing_migration(mon, p, max_throttle, detach, 
                                        blk, inc);
#endif
    } else {
        monitor_printf(mon, "unknown migration protocol: %s\n", uri);
        return -1;
    }

    if (s == NULL) {
        monitor_printf(mon, "migration failed\n");
        return -1;
    }

    if (current_migration) {
        current_migration->release(current_migration);
    }

    current_migration = s;
    notifier_list_notify(&migration_state_notifiers);
    return 0;
}
Esempio n. 4
0
int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
    MigrationState *s = migrate_get_current();
    const char *p;
    int detach = qdict_get_try_bool(qdict, "detach", 0);
    int blk = qdict_get_try_bool(qdict, "blk", 0);
    int inc = qdict_get_try_bool(qdict, "inc", 0);
    const char *uri = qdict_get_str(qdict, "uri");
    int ret;

    if (s->state == MIG_STATE_ACTIVE) {
        monitor_printf(mon, "migration already in progress\n");
        return -1;
    }

    if (qemu_savevm_state_blocked(mon)) {
        return -1;
    }

    if (migration_blockers) {
        Error *err = migration_blockers->data;
        qerror_report_err(err);
        return -1;
    }

    s = migrate_init(mon, detach, blk, inc);

    if (strstart(uri, "tcp:", &p)) {
        ret = tcp_start_outgoing_migration(s, p);
#if !defined(WIN32)
    } else if (strstart(uri, "exec:", &p)) {
        ret = exec_start_outgoing_migration(s, p);
    } else if (strstart(uri, "unix:", &p)) {
        ret = unix_start_outgoing_migration(s, p);
    } else if (strstart(uri, "fd:", &p)) {
        ret = fd_start_outgoing_migration(s, p);
#endif
    } else {
        monitor_printf(mon, "unknown migration protocol: %s\n", uri);
        ret  = -EINVAL;
    }

    if (ret < 0) {
        monitor_printf(mon, "migration failed: %s\n", strerror(-ret));
        return ret;
    }

    if (detach) {
        s->mon = NULL;
    }

    notifier_list_notify(&migration_state_notifiers, s);
    return 0;
}
Esempio n. 5
0
void qmp_migrate(const char *uri, bool has_blk, bool blk,
                 bool has_inc, bool inc, bool has_detach, bool detach,
                 Error **errp)
{
    Error *local_err = NULL;
    MigrationState *s = migrate_get_current();
    MigrationParams params;
    const char *p;

    params.blk = blk;
    params.shared = inc;

    if (s->state == MIG_STATE_ACTIVE) {
        error_set(errp, QERR_MIGRATION_ACTIVE);
        return;
    }

    if (qemu_savevm_state_blocked(errp)) {
        return;
    }

    if (migration_blockers) {
        *errp = error_copy(migration_blockers->data);
        return;
    }

    s = migrate_init(&params);

    if (strstart(uri, "tcp:", &p)) {
        tcp_start_outgoing_migration(s, p, &local_err);
#if !defined(WIN32)
    } else if (strstart(uri, "exec:", &p)) {
        exec_start_outgoing_migration(s, p, &local_err);
    } else if (strstart(uri, "unix:", &p)) {
        unix_start_outgoing_migration(s, p, &local_err);
    } else if (strstart(uri, "fd:", &p)) {
        fd_start_outgoing_migration(s, p, &local_err);
#endif
    } else {
        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "uri", "a valid migration protocol");
        return;
    }

    if (local_err) {
        migrate_fd_error(s);
        error_propagate(errp, local_err);
        return;
    }

    notifier_list_notify(&migration_state_notifiers, s);
}
Esempio n. 6
0
int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
    MigrationState *s = NULL;
    const char *p;
    int detach = qdict_get_int(qdict, "detach");
    const char *uri = qdict_get_str(qdict, "uri");

    if (current_migration &&
        current_migration->get_status(current_migration) == MIG_STATE_ACTIVE) {
        monitor_printf(mon, "migration already in progress\n");
        return -1;
    }

    if (strstart(uri, "tcp:", &p)) {
        s = tcp_start_outgoing_migration(mon, p, max_throttle, detach,
                                         (int)qdict_get_int(qdict, "blk"), 
                                         (int)qdict_get_int(qdict, "inc"));
#if !defined(WIN32)
    } else if (strstart(uri, "exec:", &p)) {
        s = exec_start_outgoing_migration(mon, p, max_throttle, detach,
                                          (int)qdict_get_int(qdict, "blk"), 
                                          (int)qdict_get_int(qdict, "inc"));
    } else if (strstart(uri, "unix:", &p)) {
        s = unix_start_outgoing_migration(mon, p, max_throttle, detach,
					  (int)qdict_get_int(qdict, "blk"), 
                                          (int)qdict_get_int(qdict, "inc"));
    } else if (strstart(uri, "fd:", &p)) {
        s = fd_start_outgoing_migration(mon, p, max_throttle, detach, 
                                        (int)qdict_get_int(qdict, "blk"), 
                                        (int)qdict_get_int(qdict, "inc"));
#endif
    } else {
        monitor_printf(mon, "unknown migration protocol: %s\n", uri);
        return -1;
    }

    if (s == NULL) {
        monitor_printf(mon, "migration failed\n");
        return -1;
    }

    if (current_migration) {
        current_migration->release(current_migration);
    }

    current_migration = s;
    return 0;
}
Esempio n. 7
0
int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
//    printf("migrate thread %lu\n",(unsigned long int)pthread_self());    
    MigrationState *s = NULL;
    const char *p;
    int detach = qdict_get_int(qdict, "detach");
    const char *uri = qdict_get_str(qdict, "uri");

    if (current_migration &&
        current_migration->get_status(current_migration) == MIG_STATE_ACTIVE) {
        monitor_printf(mon, "migration already in progress\n");
        return -1;
    }
    /* Pacer modification: computing estimate migration speed */
    int has_mig_time = qdict_haskey(qdict, "mig_time");
    int mig_time=500;
   
    if(has_mig_time)
	mig_time=qdict_get_int(qdict,"mig_time");
    printf("migration requried time %d\n",mig_time);

    int metricopt=(int)qdict_get_int(qdict,"throughputrequired");
    int metricvalue=0;
    if(metricopt==1) {  
        int has_throughput = qdict_haskey(qdict,"required");
        if(has_throughput)
           metricvalue=qdict_get_int(qdict,"required");
        if(metricvalue!=0)
           printf("throughput required %d\n",metricvalue);  
    }else{
        int has_latency = qdict_haskey(qdict,"required");
        if(has_latency)
           metricvalue=qdict_get_int(qdict,"required");
        if(metricvalue!=0)
           printf("latency required %d\n",metricvalue);  
    }
    if(metricvalue==0){
         printf("no requirement\n");
         metricopt=2;
    }
    uint64_t memsize=ram_bytes_remaining();
    uint64_t disksize=bdrv_get_totallength();
    uint64_t speed;
     
    printf("ram size %"PRId64"\n",ram_bytes_remaining());
    printf("disk size %"PRId64"\n",bdrv_get_totallength());    
    
    if(mig_time!=0){
       speed=(disksize+memsize)/mig_time;
       max_throttle=speed;
       printf("migration speed0 %"PRId64"\n",speed);
    }
    //end
    if (strstart(uri, "tcp:", &p)) {
        s = tcp_start_outgoing_migration(mon, p, max_throttle, detach,
                                         (int)qdict_get_int(qdict, "blk"), 
                                         (int)qdict_get_int(qdict, "inc"),
                                         (int)qdict_get_int(qdict, "sparse"),
					 mig_time,
                                         metricopt, 
                                         metricvalue,                         
		                         (int)qdict_get_int(qdict,"compression"),
					 (int)qdict_get_int(qdict,"scheduling"),
					 (int)qdict_get_int(qdict,"dscheduling"),
					 (int)qdict_get_int(qdict,"throttling"));
#if !defined(WIN32)
    } else if (strstart(uri, "exec:", &p)) {
        s = exec_start_outgoing_migration(mon, p, max_throttle, detach,
                                          (int)qdict_get_int(qdict, "blk"), 
                                          (int)qdict_get_int(qdict, "inc"),
					  (int)qdict_get_int(qdict, "sparse"),
                                          mig_time,
                                          metricopt,
                                          metricvalue,
                                          (int)qdict_get_int(qdict,"compression"),
					  (int)qdict_get_int(qdict, "scheduling"),
					  (int)qdict_get_int(qdict,"dscheduling"),
					  (int)qdict_get_int(qdict,"throttling"));

    } else if (strstart(uri, "unix:", &p)) {
        s = unix_start_outgoing_migration(mon, p, max_throttle, detach,
					  (int)qdict_get_int(qdict, "blk"),
                                          (int)qdict_get_int(qdict, "inc"),
    					  (int)qdict_get_int(qdict, "sparse"),
                                          mig_time,
                                          metricopt,
                                          metricvalue,
                                          (int)qdict_get_int(qdict,"compression"),
					  (int)qdict_get_int(qdict, "scheduling"),
					  (int)qdict_get_int(qdict, "dscheduling"),
					  (int)qdict_get_int(qdict, "throttling"));
					
    } else if (strstart(uri, "fd:", &p)) {
        s = fd_start_outgoing_migration(mon, p, max_throttle, detach, 
                                        (int)qdict_get_int(qdict, "blk"), 
                                        (int)qdict_get_int(qdict, "inc"),
                                        (int)qdict_get_int(qdict, "sparse"),
                                        mig_time,
                                        metricopt,
                                        metricvalue,
                                        (int)qdict_get_int(qdict,"compression"),
					(int)qdict_get_int(qdict, "scheduling"),
					(int)qdict_get_int(qdict, "dscheduling"),
					(int)qdict_get_int(qdict, "throttling"));

#endif
    } else {
        monitor_printf(mon, "unknown migration protocol: %s\n", uri);
        return -1;
    }

    if (s == NULL) {
        monitor_printf(mon, "migration failed\n");
        return -1;
    }

    if (current_migration) {
        current_migration->release(current_migration);
    }

    current_migration = s;
    return 0;
}