Exemplo n.º 1
0
void qmp_cont(Error **errp)
{
    Error *local_err = NULL;
    BlockBackend *blk;
    BlockDriverState *bs;

    if (runstate_needs_reset()) {
        error_setg(errp, "Resetting the Virtual Machine is required");
        return;
    } else if (runstate_check(RUN_STATE_SUSPENDED)) {
        return;
    }

    for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
        blk_iostatus_reset(blk);
    }
    for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
        bdrv_add_key(bs, NULL, &local_err);
        if (local_err) {
            error_propagate(errp, local_err);
            return;
        }
    }

    if (runstate_check(RUN_STATE_INMIGRATE)) {
        autostart = 1;
    } else {
        vm_start();
    }
}
Exemplo n.º 2
0
Arquivo: qmp.c Projeto: Jameshzc/qemu
void qmp_cont(Error **errp)
{
    Error *local_err = NULL;
    BlockBackend *blk;
    BlockDriverState *bs;
    BdrvNextIterator *it;

    /* if there is a dump in background, we should wait until the dump
     * finished */
    if (dump_in_progress()) {
        error_setg(errp, "There is a dump in process, please wait.");
        return;
    }

    if (runstate_needs_reset()) {
        error_setg(errp, "Resetting the Virtual Machine is required");
        return;
    } else if (runstate_check(RUN_STATE_SUSPENDED)) {
        return;
    }

    for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
        blk_iostatus_reset(blk);
    }

    it = NULL;
    while ((it = bdrv_next(it, &bs))) {
        bdrv_add_key(bs, NULL, &local_err);
        if (local_err) {
            error_propagate(errp, local_err);
            return;
        }
    }

    /* Continuing after completed migration. Images have been inactivated to
     * allow the destination to take control. Need to get control back now. */
    if (runstate_check(RUN_STATE_FINISH_MIGRATE) ||
        runstate_check(RUN_STATE_POSTMIGRATE))
    {
        bdrv_invalidate_cache_all(&local_err);
        if (local_err) {
            error_propagate(errp, local_err);
            return;
        }
    }

    if (runstate_check(RUN_STATE_INMIGRATE)) {
        autostart = 1;
    } else {
        vm_start();
    }
}
Exemplo n.º 3
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;
    }
}
Exemplo n.º 4
0
void qmp_stop(Error **errp)
{
    if (runstate_check(RUN_STATE_INMIGRATE)) {
        autostart = 0;
    } else {
        vm_stop(RUN_STATE_PAUSED);
    }
}
Exemplo n.º 5
0
Arquivo: qmp.c Projeto: mcayland/qemu
void qmp_exit_preconfig(Error **errp)
{
    if (!runstate_check(RUN_STATE_PRECONFIG)) {
        error_setg(errp, "The command is permitted only in '%s' state",
                   RunState_str(RUN_STATE_PRECONFIG));
        return;
    }
    qemu_exit_preconfig_request();
}
Exemplo n.º 6
0
Arquivo: qmp.c Projeto: jjykh/qemu
void qmp_cont(Error **errp)
{
    Error *local_err = NULL;
    BlockBackend *blk;
    BlockDriverState *bs;

    if (runstate_needs_reset()) {
        error_setg(errp, "Resetting the Virtual Machine is required");
        return;
    } else if (runstate_check(RUN_STATE_SUSPENDED)) {
        return;
    }

    for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
        blk_iostatus_reset(blk);
    }
    for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
        bdrv_add_key(bs, NULL, &local_err);
        if (local_err) {
            error_propagate(errp, local_err);
            return;
        }
    }

    /* Continuing after completed migration. Images have been inactivated to
     * allow the destination to take control. Need to get control back now. */
    if (runstate_check(RUN_STATE_FINISH_MIGRATE) ||
        runstate_check(RUN_STATE_POSTMIGRATE))
    {
        bdrv_invalidate_cache_all(&local_err);
        if (local_err) {
            error_propagate(errp, local_err);
            return;
        }
    }

    if (runstate_check(RUN_STATE_INMIGRATE)) {
        autostart = 1;
    } else {
        vm_start();
    }
}
Exemplo n.º 7
0
Arquivo: qmp.c Projeto: mcayland/qemu
void qmp_cont(Error **errp)
{
    BlockBackend *blk;
    Error *local_err = NULL;

    /* if there is a dump in background, we should wait until the dump
     * finished */
    if (dump_in_progress()) {
        error_setg(errp, "There is a dump in process, please wait.");
        return;
    }

    if (runstate_needs_reset()) {
        error_setg(errp, "Resetting the Virtual Machine is required");
        return;
    } else if (runstate_check(RUN_STATE_SUSPENDED)) {
        return;
    }

    for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
        blk_iostatus_reset(blk);
    }

    /* Continuing after completed migration. Images have been inactivated to
     * allow the destination to take control. Need to get control back now.
     *
     * If there are no inactive block nodes (e.g. because the VM was just
     * paused rather than completing a migration), bdrv_inactivate_all() simply
     * doesn't do anything. */
    bdrv_invalidate_cache_all(&local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        return;
    }

    if (runstate_check(RUN_STATE_INMIGRATE)) {
        autostart = 1;
    } else {
        vm_start();
    }
}
Exemplo n.º 8
0
/* Resume execution.  */
static inline void gdb_continue(GDBState *s)
{
#ifdef CONFIG_USER_ONLY
    s->running_state = 1;
#else
    if (runstate_check(RUN_STATE_GUEST_PANICKED)) {
        runstate_set(RUN_STATE_DEBUG);
    }
    if (!runstate_needs_reset()) {
        vm_start();
    }
#endif
}
Exemplo n.º 9
0
void qmp_stop(Error **errp)
{
    /* if there is a dump in background, we should wait until the dump
     * finished */
    if (dump_in_progress()) {
        error_setg(errp, "There is a dump in process, please wait.");
        return;
    }

    if (runstate_check(RUN_STATE_INMIGRATE)) {
        autostart = 0;
    } else {
        vm_stop(RUN_STATE_PAUSED);
    }
}
Exemplo n.º 10
0
Arquivo: colo.c Projeto: mmuman/qemu
static bool colo_runstate_is_stopped(void)
{
    return runstate_check(RUN_STATE_COLO) || !runstate_is_running();
}
Exemplo n.º 11
0
static QObject *do_qmp_dispatch(QmpCommandList *cmds, QObject *request,
                                bool allow_oob, Error **errp)
{
    Error *local_err = NULL;
    bool oob;
    const char *command;
    QDict *args, *dict;
    QmpCommand *cmd;
    QObject *ret = NULL;

    dict = qmp_dispatch_check_obj(request, allow_oob, errp);
    if (!dict) {
        return NULL;
    }

    command = qdict_get_try_str(dict, "execute");
    oob = false;
    if (!command) {
        assert(allow_oob);
        command = qdict_get_str(dict, "exec-oob");
        oob = true;
    }
    cmd = qmp_find_command(cmds, command);
    if (cmd == NULL) {
        error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
                  "The command %s has not been found", command);
        return NULL;
    }
    if (!cmd->enabled) {
        error_setg(errp, "The command %s has been disabled for this instance",
                   command);
        return NULL;
    }
    if (oob && !(cmd->options & QCO_ALLOW_OOB)) {
        error_setg(errp, "The command %s does not support OOB",
                   command);
        return NULL;
    }

    if (runstate_check(RUN_STATE_PRECONFIG) &&
        !(cmd->options & QCO_ALLOW_PRECONFIG)) {
        error_setg(errp, "The command '%s' isn't permitted in '%s' state",
                   cmd->name, RunState_str(RUN_STATE_PRECONFIG));
        return NULL;
    }

    if (!qdict_haskey(dict, "arguments")) {
        args = qdict_new();
    } else {
        args = qdict_get_qdict(dict, "arguments");
        qobject_ref(args);
    }

    cmd->fn(args, &ret, &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
    } else if (cmd->options & QCO_NO_SUCCESS_RESP) {
        g_assert(!ret);
    } else if (!ret) {
        /* TODO turn into assertion */
        ret = QOBJECT(qdict_new());
    }

    qobject_unref(args);

    return ret;
}