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d924559953
A block driver can provide a callback to report driver-specific statistics. file-posix driver now reports discard statistics Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Acked-by: Markus Armbruster <armbru@redhat.com> Message-id: 20190923121737.83281-10-anton.nefedov@virtuozzo.com Signed-off-by: Max Reitz <mreitz@redhat.com>
855 lines
28 KiB
C
855 lines
28 KiB
C
/*
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* Block layer qmp and info dump related functions
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qemu/cutils.h"
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#include "block/qapi.h"
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#include "block/block_int.h"
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#include "block/throttle-groups.h"
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#include "block/write-threshold.h"
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#include "qapi/error.h"
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#include "qapi/qapi-commands-block-core.h"
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#include "qapi/qobject-output-visitor.h"
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#include "qapi/qapi-visit-block-core.h"
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#include "qapi/qmp/qbool.h"
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#include "qapi/qmp/qdict.h"
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#include "qapi/qmp/qlist.h"
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#include "qapi/qmp/qnum.h"
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#include "qapi/qmp/qstring.h"
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#include "qemu/qemu-print.h"
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#include "sysemu/block-backend.h"
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#include "qemu/cutils.h"
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BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
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BlockDriverState *bs, Error **errp)
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{
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ImageInfo **p_image_info;
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BlockDriverState *bs0;
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BlockDeviceInfo *info;
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if (!bs->drv) {
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error_setg(errp, "Block device %s is ejected", bs->node_name);
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return NULL;
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}
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bdrv_refresh_filename(bs);
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info = g_malloc0(sizeof(*info));
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info->file = g_strdup(bs->filename);
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info->ro = bs->read_only;
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info->drv = g_strdup(bs->drv->format_name);
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info->encrypted = bs->encrypted;
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info->encryption_key_missing = false;
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info->cache = g_new(BlockdevCacheInfo, 1);
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*info->cache = (BlockdevCacheInfo) {
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.writeback = blk ? blk_enable_write_cache(blk) : true,
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.direct = !!(bs->open_flags & BDRV_O_NOCACHE),
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.no_flush = !!(bs->open_flags & BDRV_O_NO_FLUSH),
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};
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if (bs->node_name[0]) {
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info->has_node_name = true;
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info->node_name = g_strdup(bs->node_name);
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}
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if (bs->backing_file[0]) {
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info->has_backing_file = true;
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info->backing_file = g_strdup(bs->backing_file);
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}
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if (!QLIST_EMPTY(&bs->dirty_bitmaps)) {
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info->has_dirty_bitmaps = true;
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info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs);
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}
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info->detect_zeroes = bs->detect_zeroes;
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if (blk && blk_get_public(blk)->throttle_group_member.throttle_state) {
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ThrottleConfig cfg;
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BlockBackendPublic *blkp = blk_get_public(blk);
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throttle_group_get_config(&blkp->throttle_group_member, &cfg);
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info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg;
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info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg;
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info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg;
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info->iops = cfg.buckets[THROTTLE_OPS_TOTAL].avg;
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info->iops_rd = cfg.buckets[THROTTLE_OPS_READ].avg;
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info->iops_wr = cfg.buckets[THROTTLE_OPS_WRITE].avg;
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info->has_bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max;
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info->bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max;
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info->has_bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max;
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info->bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max;
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info->has_bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max;
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info->bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max;
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info->has_iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max;
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info->iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max;
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info->has_iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max;
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info->iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max;
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info->has_iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max;
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info->iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max;
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info->has_bps_max_length = info->has_bps_max;
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info->bps_max_length =
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cfg.buckets[THROTTLE_BPS_TOTAL].burst_length;
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info->has_bps_rd_max_length = info->has_bps_rd_max;
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info->bps_rd_max_length =
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cfg.buckets[THROTTLE_BPS_READ].burst_length;
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info->has_bps_wr_max_length = info->has_bps_wr_max;
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info->bps_wr_max_length =
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cfg.buckets[THROTTLE_BPS_WRITE].burst_length;
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info->has_iops_max_length = info->has_iops_max;
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info->iops_max_length =
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cfg.buckets[THROTTLE_OPS_TOTAL].burst_length;
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info->has_iops_rd_max_length = info->has_iops_rd_max;
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info->iops_rd_max_length =
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cfg.buckets[THROTTLE_OPS_READ].burst_length;
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info->has_iops_wr_max_length = info->has_iops_wr_max;
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info->iops_wr_max_length =
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cfg.buckets[THROTTLE_OPS_WRITE].burst_length;
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info->has_iops_size = cfg.op_size;
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info->iops_size = cfg.op_size;
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info->has_group = true;
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info->group =
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g_strdup(throttle_group_get_name(&blkp->throttle_group_member));
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}
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info->write_threshold = bdrv_write_threshold_get(bs);
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bs0 = bs;
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p_image_info = &info->image;
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info->backing_file_depth = 0;
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while (1) {
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Error *local_err = NULL;
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bdrv_query_image_info(bs0, p_image_info, &local_err);
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if (local_err) {
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error_propagate(errp, local_err);
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qapi_free_BlockDeviceInfo(info);
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return NULL;
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}
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if (bs0->drv && bs0->backing) {
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info->backing_file_depth++;
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bs0 = bs0->backing->bs;
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(*p_image_info)->has_backing_image = true;
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p_image_info = &((*p_image_info)->backing_image);
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} else {
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break;
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}
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/* Skip automatically inserted nodes that the user isn't aware of for
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* query-block (blk != NULL), but not for query-named-block-nodes */
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while (blk && bs0->drv && bs0->implicit) {
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bs0 = backing_bs(bs0);
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assert(bs0);
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}
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}
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return info;
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}
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/*
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* Returns 0 on success, with *p_list either set to describe snapshot
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* information, or NULL because there are no snapshots. Returns -errno on
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* error, with *p_list untouched.
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*/
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int bdrv_query_snapshot_info_list(BlockDriverState *bs,
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SnapshotInfoList **p_list,
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Error **errp)
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{
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int i, sn_count;
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QEMUSnapshotInfo *sn_tab = NULL;
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SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL;
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SnapshotInfo *info;
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sn_count = bdrv_snapshot_list(bs, &sn_tab);
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if (sn_count < 0) {
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const char *dev = bdrv_get_device_name(bs);
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switch (sn_count) {
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case -ENOMEDIUM:
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error_setg(errp, "Device '%s' is not inserted", dev);
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break;
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case -ENOTSUP:
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error_setg(errp,
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"Device '%s' does not support internal snapshots",
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dev);
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break;
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default:
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error_setg_errno(errp, -sn_count,
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"Can't list snapshots of device '%s'", dev);
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break;
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}
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return sn_count;
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}
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for (i = 0; i < sn_count; i++) {
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info = g_new0(SnapshotInfo, 1);
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info->id = g_strdup(sn_tab[i].id_str);
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info->name = g_strdup(sn_tab[i].name);
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info->vm_state_size = sn_tab[i].vm_state_size;
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info->date_sec = sn_tab[i].date_sec;
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info->date_nsec = sn_tab[i].date_nsec;
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info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000;
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info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000;
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info_list = g_new0(SnapshotInfoList, 1);
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info_list->value = info;
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/* XXX: waiting for the qapi to support qemu-queue.h types */
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if (!cur_item) {
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head = cur_item = info_list;
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} else {
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cur_item->next = info_list;
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cur_item = info_list;
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}
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}
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g_free(sn_tab);
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*p_list = head;
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return 0;
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}
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/**
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* bdrv_query_image_info:
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* @bs: block device to examine
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* @p_info: location to store image information
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* @errp: location to store error information
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*
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* Store "flat" image information in @p_info.
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*
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* "Flat" means it does *not* query backing image information,
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* i.e. (*pinfo)->has_backing_image will be set to false and
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* (*pinfo)->backing_image to NULL even when the image does in fact have
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* a backing image.
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*
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* @p_info will be set only on success. On error, store error in @errp.
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*/
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void bdrv_query_image_info(BlockDriverState *bs,
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ImageInfo **p_info,
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Error **errp)
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{
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int64_t size;
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const char *backing_filename;
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BlockDriverInfo bdi;
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int ret;
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Error *err = NULL;
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ImageInfo *info;
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aio_context_acquire(bdrv_get_aio_context(bs));
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size = bdrv_getlength(bs);
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if (size < 0) {
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error_setg_errno(errp, -size, "Can't get image size '%s'",
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bs->exact_filename);
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goto out;
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}
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bdrv_refresh_filename(bs);
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info = g_new0(ImageInfo, 1);
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info->filename = g_strdup(bs->filename);
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info->format = g_strdup(bdrv_get_format_name(bs));
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info->virtual_size = size;
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info->actual_size = bdrv_get_allocated_file_size(bs);
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info->has_actual_size = info->actual_size >= 0;
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if (bdrv_is_encrypted(bs)) {
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info->encrypted = true;
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info->has_encrypted = true;
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}
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if (bdrv_get_info(bs, &bdi) >= 0) {
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if (bdi.cluster_size != 0) {
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info->cluster_size = bdi.cluster_size;
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info->has_cluster_size = true;
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}
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info->dirty_flag = bdi.is_dirty;
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info->has_dirty_flag = true;
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}
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info->format_specific = bdrv_get_specific_info(bs, &err);
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if (err) {
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error_propagate(errp, err);
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qapi_free_ImageInfo(info);
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goto out;
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}
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info->has_format_specific = info->format_specific != NULL;
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backing_filename = bs->backing_file;
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if (backing_filename[0] != '\0') {
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char *backing_filename2;
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info->backing_filename = g_strdup(backing_filename);
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info->has_backing_filename = true;
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backing_filename2 = bdrv_get_full_backing_filename(bs, NULL);
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/* Always report the full_backing_filename if present, even if it's the
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* same as backing_filename. That they are same is useful info. */
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if (backing_filename2) {
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info->full_backing_filename = g_strdup(backing_filename2);
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info->has_full_backing_filename = true;
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}
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if (bs->backing_format[0]) {
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info->backing_filename_format = g_strdup(bs->backing_format);
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info->has_backing_filename_format = true;
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}
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g_free(backing_filename2);
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}
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ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err);
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switch (ret) {
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case 0:
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if (info->snapshots) {
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info->has_snapshots = true;
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}
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break;
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/* recoverable error */
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case -ENOMEDIUM:
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case -ENOTSUP:
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error_free(err);
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break;
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default:
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error_propagate(errp, err);
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qapi_free_ImageInfo(info);
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goto out;
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}
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*p_info = info;
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out:
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aio_context_release(bdrv_get_aio_context(bs));
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}
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/* @p_info will be set only on success. */
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static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info,
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Error **errp)
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{
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BlockInfo *info = g_malloc0(sizeof(*info));
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BlockDriverState *bs = blk_bs(blk);
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char *qdev;
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/* Skip automatically inserted nodes that the user isn't aware of */
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while (bs && bs->drv && bs->implicit) {
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bs = backing_bs(bs);
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}
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info->device = g_strdup(blk_name(blk));
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info->type = g_strdup("unknown");
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info->locked = blk_dev_is_medium_locked(blk);
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info->removable = blk_dev_has_removable_media(blk);
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qdev = blk_get_attached_dev_id(blk);
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if (qdev && *qdev) {
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info->has_qdev = true;
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info->qdev = qdev;
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} else {
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g_free(qdev);
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}
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if (blk_dev_has_tray(blk)) {
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info->has_tray_open = true;
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info->tray_open = blk_dev_is_tray_open(blk);
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}
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if (blk_iostatus_is_enabled(blk)) {
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info->has_io_status = true;
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info->io_status = blk_iostatus(blk);
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}
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if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) {
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info->has_dirty_bitmaps = true;
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info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs);
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}
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if (bs && bs->drv) {
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info->has_inserted = true;
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info->inserted = bdrv_block_device_info(blk, bs, errp);
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if (info->inserted == NULL) {
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goto err;
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}
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}
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*p_info = info;
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return;
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err:
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qapi_free_BlockInfo(info);
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}
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static uint64List *uint64_list(uint64_t *list, int size)
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{
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int i;
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uint64List *out_list = NULL;
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uint64List **pout_list = &out_list;
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for (i = 0; i < size; i++) {
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uint64List *entry = g_new(uint64List, 1);
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entry->value = list[i];
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*pout_list = entry;
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pout_list = &entry->next;
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}
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*pout_list = NULL;
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return out_list;
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}
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static void bdrv_latency_histogram_stats(BlockLatencyHistogram *hist,
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bool *not_null,
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BlockLatencyHistogramInfo **info)
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{
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*not_null = hist->bins != NULL;
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if (*not_null) {
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*info = g_new0(BlockLatencyHistogramInfo, 1);
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(*info)->boundaries = uint64_list(hist->boundaries, hist->nbins - 1);
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(*info)->bins = uint64_list(hist->bins, hist->nbins);
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}
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}
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static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk)
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{
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BlockAcctStats *stats = blk_get_stats(blk);
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BlockAcctTimedStats *ts = NULL;
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ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ];
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ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE];
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ds->unmap_bytes = stats->nr_bytes[BLOCK_ACCT_UNMAP];
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ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ];
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ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE];
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ds->unmap_operations = stats->nr_ops[BLOCK_ACCT_UNMAP];
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ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ];
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ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE];
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ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH];
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ds->failed_unmap_operations = stats->failed_ops[BLOCK_ACCT_UNMAP];
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ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ];
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ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE];
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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))) {
|
|
BlockDeviceTimedStatsList *timed_stats =
|
|
g_malloc0(sizeof(*timed_stats));
|
|
BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats));
|
|
timed_stats->next = ds->timed_stats;
|
|
timed_stats->value = dev_stats;
|
|
ds->timed_stats = timed_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);
|
|
}
|
|
|
|
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)
|
|
{
|
|
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. */
|
|
while (blk_level && bs->drv && bs->implicit) {
|
|
bs = backing_bs(bs);
|
|
assert(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;
|
|
}
|
|
|
|
if (bs->file) {
|
|
s->has_parent = true;
|
|
s->parent = bdrv_query_bds_stats(bs->file->bs, blk_level);
|
|
}
|
|
|
|
if (blk_level && bs->backing) {
|
|
s->has_backing = true;
|
|
s->backing = bdrv_query_bds_stats(bs->backing->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, **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_all_next(NULL); blk; blk = blk_all_next(blk)) {
|
|
BlockStatsList *info;
|
|
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);
|
|
|
|
info = g_malloc0(sizeof(*info));
|
|
info->value = s;
|
|
*p_next = info;
|
|
p_next = &info->next;
|
|
}
|
|
}
|
|
|
|
return head;
|
|
}
|
|
|
|
void bdrv_snapshot_dump(QEMUSnapshotInfo *sn)
|
|
{
|
|
char date_buf[128], clock_buf[128];
|
|
struct tm tm;
|
|
time_t ti;
|
|
int64_t secs;
|
|
char *sizing = NULL;
|
|
|
|
if (!sn) {
|
|
qemu_printf("%-10s%-20s%7s%20s%15s",
|
|
"ID", "TAG", "VM SIZE", "DATE", "VM CLOCK");
|
|
} else {
|
|
ti = sn->date_sec;
|
|
localtime_r(&ti, &tm);
|
|
strftime(date_buf, sizeof(date_buf),
|
|
"%Y-%m-%d %H:%M:%S", &tm);
|
|
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);
|
|
qemu_printf("%-10s%-20s%7s%20s%15s",
|
|
sn->id_str, sn->name,
|
|
sizing,
|
|
date_buf,
|
|
clock_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,
|
|
};
|
|
|
|
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);
|
|
}
|
|
}
|