Exemple #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();
    }
}
Exemple #2
0
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();
    }
}
Exemple #3
0
BlockStatsList *qmp_query_blockstats(bool has_query_nodes,
                                     bool query_nodes,
                                     Error **errp)
{
    BlockStatsList *head = NULL, **p_next = &head;
    BlockBackend *blk;
    BlockDriverState *bs;

    /* Just to be safe if query_nodes is not always initialized */
    if (has_query_nodes && query_nodes) {
        for (bs = bdrv_next_node(NULL); bs; bs = bdrv_next_node(bs)) {
            BlockStatsList *info = g_malloc0(sizeof(*info));
            AioContext *ctx = bdrv_get_aio_context(bs);

            aio_context_acquire(ctx);
            info->value = bdrv_query_bds_stats(bs, false);
            aio_context_release(ctx);

            *p_next = info;
            p_next = &info->next;
        }
    } else {
        for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
            BlockStatsList *info = g_malloc0(sizeof(*info));
            AioContext *ctx = blk_get_aio_context(blk);
            BlockStats *s;

            aio_context_acquire(ctx);
            s = bdrv_query_bds_stats(blk_bs(blk), true);
            s->has_device = true;
            s->device = g_strdup(blk_name(blk));
            bdrv_query_blk_stats(s->stats, blk);
            aio_context_release(ctx);

            info->value = s;
            *p_next = info;
            p_next = &info->next;
        }
    }

    return head;
}
Exemple #4
0
Fichier : qmp.c Projet : 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();
    }
}
Exemple #5
0
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();
    }
}
Exemple #6
0
static bool next_query_bds(BlockBackend **blk, BlockDriverState **bs,
                           bool query_nodes)
{
    if (query_nodes) {
        *bs = bdrv_next_node(*bs);
        return !!*bs;
    }

    *blk = blk_next(*blk);
    *bs = *blk ? blk_bs(*blk) : NULL;

    return !!*blk;
}
Exemple #7
0
BlockInfoList *qmp_query_block(Error **errp)
{
    BlockInfoList *head = NULL, **p_next = &head;
    BlockBackend *blk;
    Error *local_err = NULL;

    for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
        BlockInfoList *info = g_malloc0(sizeof(*info));
        bdrv_query_info(blk, &info->value, &local_err);
        if (local_err) {
            error_propagate(errp, local_err);
            g_free(info);
            qapi_free_BlockInfoList(head);
            return NULL;
        }

        *p_next = info;
        p_next = &info->next;
    }

    return head;
}