diff options
Diffstat (limited to 'block/qapi.c')
| -rw-r--r-- | block/qapi.c | 872 |
1 files changed, 872 insertions, 0 deletions
diff --git a/block/qapi.c b/block/qapi.c new file mode 100644 index 000000000..cf557e3ae --- /dev/null +++ b/block/qapi.c @@ -0,0 +1,872 @@ +/* + * Block layer qmp and info dump related functions + * + * Copyright (c) 2003-2008 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.h" +#include "qemu/cutils.h" +#include "block/qapi.h" +#include "block/block_int.h" +#include "block/throttle-groups.h" +#include "block/write-threshold.h" +#include "qapi/error.h" +#include "qapi/qapi-commands-block-core.h" +#include "qapi/qobject-output-visitor.h" +#include "qapi/qapi-visit-block-core.h" +#include "qapi/qmp/qbool.h" +#include "qapi/qmp/qdict.h" +#include "qapi/qmp/qlist.h" +#include "qapi/qmp/qnum.h" +#include "qapi/qmp/qstring.h" +#include "qemu/qemu-print.h" +#include "sysemu/block-backend.h" +#include "qemu/cutils.h" + +BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk, + BlockDriverState *bs, + bool flat, + Error **errp) +{ + ImageInfo **p_image_info; + BlockDriverState *bs0, *backing; + BlockDeviceInfo *info; + + if (!bs->drv) { + error_setg(errp, "Block device %s is ejected", bs->node_name); + return NULL; + } + + bdrv_refresh_filename(bs); + + info = g_malloc0(sizeof(*info)); + info->file = g_strdup(bs->filename); + info->ro = bdrv_is_read_only(bs); + info->drv = g_strdup(bs->drv->format_name); + info->encrypted = bs->encrypted; + + info->cache = g_new(BlockdevCacheInfo, 1); + *info->cache = (BlockdevCacheInfo) { + .writeback = blk ? blk_enable_write_cache(blk) : true, + .direct = !!(bs->open_flags & BDRV_O_NOCACHE), + .no_flush = !!(bs->open_flags & BDRV_O_NO_FLUSH), + }; + + if (bs->node_name[0]) { + info->has_node_name = true; + info->node_name = g_strdup(bs->node_name); + } + + backing = bdrv_cow_bs(bs); + if (backing) { + info->has_backing_file = true; + info->backing_file = g_strdup(backing->filename); + } + + if (!QLIST_EMPTY(&bs->dirty_bitmaps)) { + info->has_dirty_bitmaps = true; + info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); + } + + info->detect_zeroes = bs->detect_zeroes; + + if (blk && blk_get_public(blk)->throttle_group_member.throttle_state) { + ThrottleConfig cfg; + BlockBackendPublic *blkp = blk_get_public(blk); + + throttle_group_get_config(&blkp->throttle_group_member, &cfg); + + info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg; + info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg; + info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg; + + info->iops = cfg.buckets[THROTTLE_OPS_TOTAL].avg; + info->iops_rd = cfg.buckets[THROTTLE_OPS_READ].avg; + info->iops_wr = cfg.buckets[THROTTLE_OPS_WRITE].avg; + + info->has_bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; + info->bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; + info->has_bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; + info->bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; + info->has_bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; + info->bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; + + info->has_iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; + info->iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; + info->has_iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; + info->iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; + info->has_iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; + info->iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; + + info->has_bps_max_length = info->has_bps_max; + info->bps_max_length = + cfg.buckets[THROTTLE_BPS_TOTAL].burst_length; + info->has_bps_rd_max_length = info->has_bps_rd_max; + info->bps_rd_max_length = + cfg.buckets[THROTTLE_BPS_READ].burst_length; + info->has_bps_wr_max_length = info->has_bps_wr_max; + info->bps_wr_max_length = + cfg.buckets[THROTTLE_BPS_WRITE].burst_length; + + info->has_iops_max_length = info->has_iops_max; + info->iops_max_length = + cfg.buckets[THROTTLE_OPS_TOTAL].burst_length; + info->has_iops_rd_max_length = info->has_iops_rd_max; + info->iops_rd_max_length = + cfg.buckets[THROTTLE_OPS_READ].burst_length; + info->has_iops_wr_max_length = info->has_iops_wr_max; + info->iops_wr_max_length = + cfg.buckets[THROTTLE_OPS_WRITE].burst_length; + + info->has_iops_size = cfg.op_size; + info->iops_size = cfg.op_size; + + info->has_group = true; + info->group = + g_strdup(throttle_group_get_name(&blkp->throttle_group_member)); + } + + info->write_threshold = bdrv_write_threshold_get(bs); + + bs0 = bs; + p_image_info = &info->image; + info->backing_file_depth = 0; + while (1) { + Error *local_err = NULL; + bdrv_query_image_info(bs0, p_image_info, &local_err); + if (local_err) { + error_propagate(errp, local_err); + qapi_free_BlockDeviceInfo(info); + return NULL; + } + + /* stop gathering data for flat output */ + if (flat) { + break; + } + + if (bs0->drv && bdrv_filter_or_cow_child(bs0)) { + /* + * Put any filtered child here (for backwards compatibility to when + * we put bs0->backing here, which might be any filtered child). + */ + info->backing_file_depth++; + bs0 = bdrv_filter_or_cow_bs(bs0); + (*p_image_info)->has_backing_image = true; + p_image_info = &((*p_image_info)->backing_image); + } else { + break; + } + + /* Skip automatically inserted nodes that the user isn't aware of for + * query-block (blk != NULL), but not for query-named-block-nodes */ + if (blk) { + bs0 = bdrv_skip_implicit_filters(bs0); + } + } + + return info; +} + +/* + * Returns 0 on success, with *p_list either set to describe snapshot + * information, or NULL because there are no snapshots. Returns -errno on + * error, with *p_list untouched. + */ +int bdrv_query_snapshot_info_list(BlockDriverState *bs, + SnapshotInfoList **p_list, + Error **errp) +{ + int i, sn_count; + QEMUSnapshotInfo *sn_tab = NULL; + SnapshotInfoList *head = NULL, **tail = &head; + SnapshotInfo *info; + + sn_count = bdrv_snapshot_list(bs, &sn_tab); + if (sn_count < 0) { + const char *dev = bdrv_get_device_name(bs); + switch (sn_count) { + case -ENOMEDIUM: + error_setg(errp, "Device '%s' is not inserted", dev); + break; + case -ENOTSUP: + error_setg(errp, + "Device '%s' does not support internal snapshots", + dev); + break; + default: + error_setg_errno(errp, -sn_count, + "Can't list snapshots of device '%s'", dev); + break; + } + return sn_count; + } + + for (i = 0; i < sn_count; i++) { + info = g_new0(SnapshotInfo, 1); + info->id = g_strdup(sn_tab[i].id_str); + info->name = g_strdup(sn_tab[i].name); + info->vm_state_size = sn_tab[i].vm_state_size; + info->date_sec = sn_tab[i].date_sec; + info->date_nsec = sn_tab[i].date_nsec; + info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000; + info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000; + info->icount = sn_tab[i].icount; + info->has_icount = sn_tab[i].icount != -1ULL; + + QAPI_LIST_APPEND(tail, info); + } + + g_free(sn_tab); + *p_list = head; + return 0; +} + +/** + * bdrv_query_image_info: + * @bs: block device to examine + * @p_info: location to store image information + * @errp: location to store error information + * + * Store "flat" image information in @p_info. + * + * "Flat" means it does *not* query backing image information, + * i.e. (*pinfo)->has_backing_image will be set to false and + * (*pinfo)->backing_image to NULL even when the image does in fact have + * a backing image. + * + * @p_info will be set only on success. On error, store error in @errp. + */ +void bdrv_query_image_info(BlockDriverState *bs, + ImageInfo **p_info, + Error **errp) +{ + int64_t size; + const char *backing_filename; + BlockDriverInfo bdi; + int ret; + Error *err = NULL; + ImageInfo *info; + + aio_context_acquire(bdrv_get_aio_context(bs)); + + size = bdrv_getlength(bs); + if (size < 0) { + error_setg_errno(errp, -size, "Can't get image size '%s'", + bs->exact_filename); + goto out; + } + + bdrv_refresh_filename(bs); + + info = g_new0(ImageInfo, 1); + info->filename = g_strdup(bs->filename); + info->format = g_strdup(bdrv_get_format_name(bs)); + info->virtual_size = size; + info->actual_size = bdrv_get_allocated_file_size(bs); + info->has_actual_size = info->actual_size >= 0; + if (bs->encrypted) { + info->encrypted = true; + info->has_encrypted = true; + } + if (bdrv_get_info(bs, &bdi) >= 0) { + if (bdi.cluster_size != 0) { + info->cluster_size = bdi.cluster_size; + info->has_cluster_size = true; + } + info->dirty_flag = bdi.is_dirty; + info->has_dirty_flag = true; + } + info->format_specific = bdrv_get_specific_info(bs, &err); + if (err) { + error_propagate(errp, err); + qapi_free_ImageInfo(info); + goto out; + } + info->has_format_specific = info->format_specific != NULL; + + backing_filename = bs->backing_file; + if (backing_filename[0] != '\0') { + char *backing_filename2; + + info->backing_filename = g_strdup(backing_filename); + info->has_backing_filename = true; + backing_filename2 = bdrv_get_full_backing_filename(bs, NULL); + + /* Always report the full_backing_filename if present, even if it's the + * same as backing_filename. That they are same is useful info. */ + if (backing_filename2) { + info->full_backing_filename = g_strdup(backing_filename2); + info->has_full_backing_filename = true; + } + + if (bs->backing_format[0]) { + info->backing_filename_format = g_strdup(bs->backing_format); + info->has_backing_filename_format = true; + } + g_free(backing_filename2); + } + + ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); + switch (ret) { + case 0: + if (info->snapshots) { + info->has_snapshots = true; + } + break; + /* recoverable error */ + case -ENOMEDIUM: + case -ENOTSUP: + error_free(err); + break; + default: + error_propagate(errp, err); + qapi_free_ImageInfo(info); + goto out; + } + + *p_info = info; + +out: + aio_context_release(bdrv_get_aio_context(bs)); +} + +/* @p_info will be set only on success. */ +static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, + Error **errp) +{ + BlockInfo *info = g_malloc0(sizeof(*info)); + BlockDriverState *bs = blk_bs(blk); + char *qdev; + + /* Skip automatically inserted nodes that the user isn't aware of */ + bs = bdrv_skip_implicit_filters(bs); + + 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); + + qdev = blk_get_attached_dev_id(blk); + if (qdev && *qdev) { + info->has_qdev = true; + info->qdev = qdev; + } else { + g_free(qdev); + } + + if (blk_dev_has_tray(blk)) { + info->has_tray_open = true; + info->tray_open = blk_dev_is_tray_open(blk); + } + + if (blk_iostatus_is_enabled(blk)) { + info->has_io_status = true; + info->io_status = blk_iostatus(blk); + } + + if (bs && bs->drv) { + info->has_inserted = true; + info->inserted = bdrv_block_device_info(blk, bs, false, errp); + if (info->inserted == NULL) { + goto err; + } + } + + *p_info = info; + return; + + err: + qapi_free_BlockInfo(info); +} + +static uint64List *uint64_list(uint64_t *list, int size) +{ + int i; + uint64List *out_list = NULL; + uint64List **tail = &out_list; + + for (i = 0; i < size; i++) { + QAPI_LIST_APPEND(tail, list[i]); + } + + return out_list; +} + +static void bdrv_latency_histogram_stats(BlockLatencyHistogram *hist, + bool *not_null, + BlockLatencyHistogramInfo **info) +{ + *not_null = hist->bins != NULL; + if (*not_null) { + *info = g_new0(BlockLatencyHistogramInfo, 1); + + (*info)->boundaries = uint64_list(hist->boundaries, hist->nbins - 1); + (*info)->bins = uint64_list(hist->bins, hist->nbins); + } +} + +static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) +{ + BlockAcctStats *stats = blk_get_stats(blk); + BlockAcctTimedStats *ts = NULL; + + ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; + ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; + ds->unmap_bytes = stats->nr_bytes[BLOCK_ACCT_UNMAP]; + ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; + ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; + ds->unmap_operations = stats->nr_ops[BLOCK_ACCT_UNMAP]; + + ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; + ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; + ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; + ds->failed_unmap_operations = stats->failed_ops[BLOCK_ACCT_UNMAP]; + + ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; + ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; + ds->invalid_flush_operations = + stats->invalid_ops[BLOCK_ACCT_FLUSH]; + ds->invalid_unmap_operations = stats->invalid_ops[BLOCK_ACCT_UNMAP]; + + ds->rd_merged = stats->merged[BLOCK_ACCT_READ]; + ds->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; + ds->unmap_merged = stats->merged[BLOCK_ACCT_UNMAP]; + ds->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; + ds->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; + ds->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; + ds->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; + ds->unmap_total_time_ns = stats->total_time_ns[BLOCK_ACCT_UNMAP]; + + ds->has_idle_time_ns = stats->last_access_time_ns > 0; + if (ds->has_idle_time_ns) { + ds->idle_time_ns = block_acct_idle_time_ns(stats); + } + + ds->account_invalid = stats->account_invalid; + ds->account_failed = stats->account_failed; + + while ((ts = block_acct_interval_next(stats, ts))) { + BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); + + TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; + TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; + TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; + + dev_stats->interval_length = ts->interval_length; + + dev_stats->min_rd_latency_ns = timed_average_min(rd); + dev_stats->max_rd_latency_ns = timed_average_max(rd); + dev_stats->avg_rd_latency_ns = timed_average_avg(rd); + + dev_stats->min_wr_latency_ns = timed_average_min(wr); + dev_stats->max_wr_latency_ns = timed_average_max(wr); + dev_stats->avg_wr_latency_ns = timed_average_avg(wr); + + dev_stats->min_flush_latency_ns = timed_average_min(fl); + dev_stats->max_flush_latency_ns = timed_average_max(fl); + dev_stats->avg_flush_latency_ns = timed_average_avg(fl); + + dev_stats->avg_rd_queue_depth = + block_acct_queue_depth(ts, BLOCK_ACCT_READ); + dev_stats->avg_wr_queue_depth = + block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); + + QAPI_LIST_PREPEND(ds->timed_stats, dev_stats); + } + + bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_READ], + &ds->has_rd_latency_histogram, + &ds->rd_latency_histogram); + bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_WRITE], + &ds->has_wr_latency_histogram, + &ds->wr_latency_histogram); + bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_FLUSH], + &ds->has_flush_latency_histogram, + &ds->flush_latency_histogram); +} + +static BlockStats *bdrv_query_bds_stats(BlockDriverState *bs, + bool blk_level) +{ + BdrvChild *parent_child; + BlockDriverState *filter_or_cow_bs; + BlockStats *s = NULL; + + s = g_malloc0(sizeof(*s)); + s->stats = g_malloc0(sizeof(*s->stats)); + + if (!bs) { + return s; + } + + /* Skip automatically inserted nodes that the user isn't aware of in + * a BlockBackend-level command. Stay at the exact node for a node-level + * command. */ + if (blk_level) { + bs = bdrv_skip_implicit_filters(bs); + } + + if (bdrv_get_node_name(bs)[0]) { + s->has_node_name = true; + s->node_name = g_strdup(bdrv_get_node_name(bs)); + } + + s->stats->wr_highest_offset = stat64_get(&bs->wr_highest_offset); + + s->driver_specific = bdrv_get_specific_stats(bs); + if (s->driver_specific) { + s->has_driver_specific = true; + } + + parent_child = bdrv_primary_child(bs); + if (!parent_child || + !(parent_child->role & (BDRV_CHILD_DATA | BDRV_CHILD_FILTERED))) + { + BdrvChild *c; + + /* + * Look for a unique data-storing child. We do not need to look for + * filtered children, as there would be only one and it would have been + * the primary child. + */ + parent_child = NULL; + QLIST_FOREACH(c, &bs->children, next) { + if (c->role & BDRV_CHILD_DATA) { + if (parent_child) { + /* + * There are multiple data-storing children and we cannot + * choose between them. + */ + parent_child = NULL; + break; + } + parent_child = c; + } + } + } + if (parent_child) { + s->has_parent = true; + s->parent = bdrv_query_bds_stats(parent_child->bs, blk_level); + } + + filter_or_cow_bs = bdrv_filter_or_cow_bs(bs); + if (blk_level && filter_or_cow_bs) { + /* + * Put any filtered or COW child here (for backwards + * compatibility to when we put bs0->backing here, which might + * be either) + */ + s->has_backing = true; + s->backing = bdrv_query_bds_stats(filter_or_cow_bs, blk_level); + } + + return s; +} + +BlockInfoList *qmp_query_block(Error **errp) +{ + BlockInfoList *head = NULL, **p_next = &head; + BlockBackend *blk; + Error *local_err = NULL; + + for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) { + BlockInfoList *info; + + if (!*blk_name(blk) && !blk_get_attached_dev(blk)) { + continue; + } + + 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; +} + +BlockStatsList *qmp_query_blockstats(bool has_query_nodes, + bool query_nodes, + Error **errp) +{ + BlockStatsList *head = NULL, **tail = &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)) { + AioContext *ctx = bdrv_get_aio_context(bs); + + aio_context_acquire(ctx); + QAPI_LIST_APPEND(tail, bdrv_query_bds_stats(bs, false)); + aio_context_release(ctx); + } + } else { + for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) { + AioContext *ctx = blk_get_aio_context(blk); + BlockStats *s; + char *qdev; + + if (!*blk_name(blk) && !blk_get_attached_dev(blk)) { + continue; + } + + aio_context_acquire(ctx); + s = bdrv_query_bds_stats(blk_bs(blk), true); + s->has_device = true; + s->device = g_strdup(blk_name(blk)); + + qdev = blk_get_attached_dev_id(blk); + if (qdev && *qdev) { + s->has_qdev = true; + s->qdev = qdev; + } else { + g_free(qdev); + } + + bdrv_query_blk_stats(s->stats, blk); + aio_context_release(ctx); + + QAPI_LIST_APPEND(tail, s); + } + } + + return head; +} + +void bdrv_snapshot_dump(QEMUSnapshotInfo *sn) +{ + char clock_buf[128]; + char icount_buf[128] = {0}; + int64_t secs; + char *sizing = NULL; + + if (!sn) { + qemu_printf("%-10s%-17s%8s%20s%13s%11s", + "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK", "ICOUNT"); + } else { + g_autoptr(GDateTime) date = g_date_time_new_from_unix_local(sn->date_sec); + g_autofree char *date_buf = g_date_time_format(date, "%Y-%m-%d %H:%M:%S"); + + secs = sn->vm_clock_nsec / 1000000000; + snprintf(clock_buf, sizeof(clock_buf), + "%02d:%02d:%02d.%03d", + (int)(secs / 3600), + (int)((secs / 60) % 60), + (int)(secs % 60), + (int)((sn->vm_clock_nsec / 1000000) % 1000)); + sizing = size_to_str(sn->vm_state_size); + if (sn->icount != -1ULL) { + snprintf(icount_buf, sizeof(icount_buf), + "%"PRId64, sn->icount); + } + qemu_printf("%-9s %-16s %8s%20s%13s%11s", + sn->id_str, sn->name, + sizing, + date_buf, + clock_buf, + icount_buf); + } + g_free(sizing); +} + +static void dump_qdict(int indentation, QDict *dict); +static void dump_qlist(int indentation, QList *list); + +static void dump_qobject(int comp_indent, QObject *obj) +{ + switch (qobject_type(obj)) { + case QTYPE_QNUM: { + QNum *value = qobject_to(QNum, obj); + char *tmp = qnum_to_string(value); + qemu_printf("%s", tmp); + g_free(tmp); + break; + } + case QTYPE_QSTRING: { + QString *value = qobject_to(QString, obj); + qemu_printf("%s", qstring_get_str(value)); + break; + } + case QTYPE_QDICT: { + QDict *value = qobject_to(QDict, obj); + dump_qdict(comp_indent, value); + break; + } + case QTYPE_QLIST: { + QList *value = qobject_to(QList, obj); + dump_qlist(comp_indent, value); + break; + } + case QTYPE_QBOOL: { + QBool *value = qobject_to(QBool, obj); + qemu_printf("%s", qbool_get_bool(value) ? "true" : "false"); + break; + } + default: + abort(); + } +} + +static void dump_qlist(int indentation, QList *list) +{ + const QListEntry *entry; + int i = 0; + + for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { + QType type = qobject_type(entry->value); + bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); + qemu_printf("%*s[%i]:%c", indentation * 4, "", i, + composite ? '\n' : ' '); + dump_qobject(indentation + 1, entry->value); + if (!composite) { + qemu_printf("\n"); + } + } +} + +static void dump_qdict(int indentation, QDict *dict) +{ + const QDictEntry *entry; + + for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { + QType type = qobject_type(entry->value); + bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); + char *key = g_malloc(strlen(entry->key) + 1); + int i; + + /* replace dashes with spaces in key (variable) names */ + for (i = 0; entry->key[i]; i++) { + key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; + } + key[i] = 0; + qemu_printf("%*s%s:%c", indentation * 4, "", key, + composite ? '\n' : ' '); + dump_qobject(indentation + 1, entry->value); + if (!composite) { + qemu_printf("\n"); + } + g_free(key); + } +} + +void bdrv_image_info_specific_dump(ImageInfoSpecific *info_spec) +{ + QObject *obj, *data; + Visitor *v = qobject_output_visitor_new(&obj); + + visit_type_ImageInfoSpecific(v, NULL, &info_spec, &error_abort); + visit_complete(v, &obj); + data = qdict_get(qobject_to(QDict, obj), "data"); + dump_qobject(1, data); + qobject_unref(obj); + visit_free(v); +} + +void bdrv_image_info_dump(ImageInfo *info) +{ + char *size_buf, *dsize_buf; + if (!info->has_actual_size) { + dsize_buf = g_strdup("unavailable"); + } else { + dsize_buf = size_to_str(info->actual_size); + } + size_buf = size_to_str(info->virtual_size); + qemu_printf("image: %s\n" + "file format: %s\n" + "virtual size: %s (%" PRId64 " bytes)\n" + "disk size: %s\n", + info->filename, info->format, size_buf, + info->virtual_size, + dsize_buf); + g_free(size_buf); + g_free(dsize_buf); + + if (info->has_encrypted && info->encrypted) { + qemu_printf("encrypted: yes\n"); + } + + if (info->has_cluster_size) { + qemu_printf("cluster_size: %" PRId64 "\n", + info->cluster_size); + } + + if (info->has_dirty_flag && info->dirty_flag) { + qemu_printf("cleanly shut down: no\n"); + } + + if (info->has_backing_filename) { + qemu_printf("backing file: %s", info->backing_filename); + if (!info->has_full_backing_filename) { + qemu_printf(" (cannot determine actual path)"); + } else if (strcmp(info->backing_filename, + info->full_backing_filename) != 0) { + qemu_printf(" (actual path: %s)", info->full_backing_filename); + } + qemu_printf("\n"); + if (info->has_backing_filename_format) { + qemu_printf("backing file format: %s\n", + info->backing_filename_format); + } + } + + if (info->has_snapshots) { + SnapshotInfoList *elem; + + qemu_printf("Snapshot list:\n"); + bdrv_snapshot_dump(NULL); + qemu_printf("\n"); + + /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but + * we convert to the block layer's native QEMUSnapshotInfo for now. + */ + for (elem = info->snapshots; elem; elem = elem->next) { + QEMUSnapshotInfo sn = { + .vm_state_size = elem->value->vm_state_size, + .date_sec = elem->value->date_sec, + .date_nsec = elem->value->date_nsec, + .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + + elem->value->vm_clock_nsec, + .icount = elem->value->has_icount ? + elem->value->icount : -1ULL, + }; + + pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); + pstrcpy(sn.name, sizeof(sn.name), elem->value->name); + bdrv_snapshot_dump(&sn); + qemu_printf("\n"); + } + } + + if (info->has_format_specific) { + qemu_printf("Format specific information:\n"); + bdrv_image_info_specific_dump(info->format_specific); + } +} |