static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, Error **errp) { BlockInfo *info = g_malloc0(sizeof(*info)); BlockDriverState *bs = blk_bs(blk); BlockDriverState *bs0; ImageInfo **p_image_info; Error *local_err = NULL; info->device = g_strdup(blk_name(blk)); info->type = g_strdup("unknown"); info->locked = blk_dev_is_medium_locked(blk); info->removable = blk_dev_has_removable_media(blk); if (blk_dev_has_removable_media(blk)) { info->has_tray_open = true; info->tray_open = blk_dev_is_tray_open(blk); } if (bdrv_iostatus_is_enabled(bs)) { info->has_io_status = true; info->io_status = bs->iostatus; } if (!QLIST_EMPTY(&bs->dirty_bitmaps)) { info->has_dirty_bitmaps = true; info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); } if (bs->drv) { info->has_inserted = true; info->inserted = bdrv_block_device_info(bs); bs0 = bs; p_image_info = &info->inserted->image; while (1) { bdrv_query_image_info(bs0, p_image_info, &local_err); if (local_err) { error_propagate(errp, local_err); goto err; } if (bs0->drv && bs0->backing_hd) { bs0 = bs0->backing_hd; (*p_image_info)->has_backing_image = true; p_image_info = &((*p_image_info)->backing_image); } else { break; } } } *p_info = info; return; err: qapi_free_BlockInfo(info); }