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/qemu/tests/qemu-iotests/
H A D267.out10 (qemu) info snapshots
24 (qemu) info snapshots
34 (qemu) info snapshots
45 (qemu) info snapshots
60 (qemu) info snapshots
70 (qemu) info snapshots
85 (qemu) info snapshots
95 (qemu) info snapshots
106 (qemu) info snapshots
120 (qemu) info snapshots
[all …]
H A D261.out122 === Remove different snapshots ===
212 Discarding 1 overhanging snapshots (snapshot table is too big)
229 507 snapshots should remain:
230 qemu-img info reports 507 snapshots
231 Image header reports 507 snapshots
245 Discarding 1 overhanging snapshots (snapshot table is too big)
258 === Too many snapshots ===
267 Discarding 65536 overhanging snapshots
360 65536 snapshots should remain:
361 qemu-img info reports 65536 snapshots
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H A D267143 echo Internal snapshots on overlay:
146 echo Internal snapshots on backing file:
158 info snapshots
168 echo Internal snapshots on overlay:
171 echo Internal snapshots on backing file:
H A D085176 echo === Create several transactional group snapshots ===
187 echo === Create a couple of snapshots using blockdev-snapshot ===
H A D202.out10 Creating external snapshots...
H A D02953 echo Test loading internal snapshots where the L1 table of the snapshot
H A D029.out3 Test loading internal snapshots where the L1 table of the snapshot
H A D085.out37 === Create several transactional group snapshots ===
148 === Create a couple of snapshots using blockdev-snapshot ===
/qemu/docs/system/
H A Dimages.rst38 VM snapshots
41 VM snapshots are snapshots of the complete virtual machine including CPU
43 order to use VM snapshots, you must have at least one non removable and
52 snapshot. ``info snapshots`` lists the available snapshots with their
55 (qemu) info snapshots
64 ``info snapshots``) and a snapshot of every writable disk image. The VM
66 block device. The disk image snapshots are stored in every disk image.
68 not shown by ``info snapshots`` because the associated disk sectors are
69 shared among all the snapshots to save disk space (otherwise each
74 you can always make VM snapshots, but they are deleted as soon as you
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H A Dreplay.rst118 New VM snapshots may be created in replay mode. They can be used later
133 ``snapshot`` flag of the disk image must be removed to save the snapshots
141 Use QEMU monitor to create additional snapshots. ``savevm <name>`` command
144 Therefore all new snapshots (including the starting one) will be saved in
147 When you need to use snapshots with diskless virtual machine,
149 for storing VM snapshots. Here is the example of the command line for this:
157 for VM snapshots only.
215 between the snapshots. Each of the passes include the following steps:
237 temporary snapshots (existing within the session).
H A Ddevice-emulation.rst64 like snapshots.
/qemu/block/
H A Dqcow2-snapshot.c39 g_free(s->snapshots[i].name); in qcow2_free_single_snapshot()
42 memset(&s->snapshots[i], 0, sizeof(s->snapshots[i])); in qcow2_free_single_snapshot()
53 g_free(s->snapshots); in qcow2_free_snapshots()
54 s->snapshots = NULL; in qcow2_free_snapshots()
96 s->snapshots = NULL; in qcow2_do_read_snapshots()
119 sn = s->snapshots + i; in qcow2_do_read_snapshots()
288 sn = s->snapshots + i; in qcow2_write_snapshots()
326 sn = s->snapshots + i; in qcow2_write_snapshots()
585 sn = s->snapshots + i; in find_new_snapshot_id()
719 if (s->snapshots) { in qcow2_snapshot_create()
[all …]
H A Dqcow2-cluster.c2477 l1_entries += s->snapshots[i].l1_size; in qcow2_expand_zero_clusters()
2505 ret = qcow2_validate_table(bs, s->snapshots[i].l1_table_offset, in qcow2_expand_zero_clusters()
2506 s->snapshots[i].l1_size, L1E_SIZE, in qcow2_expand_zero_clusters()
2514 l1_size2 = s->snapshots[i].l1_size * L1E_SIZE; in qcow2_expand_zero_clusters()
2524 ret = bdrv_pread(bs->file, s->snapshots[i].l1_table_offset, l1_size2, in qcow2_expand_zero_clusters()
2530 for (j = 0; j < s->snapshots[i].l1_size; j++) { in qcow2_expand_zero_clusters()
2534 ret = expand_zero_clusters_in_l1(bs, l1_table, s->snapshots[i].l1_size, in qcow2_expand_zero_clusters()
H A Dqapi.c287 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); in bdrv_do_query_node_info()
290 if (info->snapshots) { in bdrv_do_query_node_info()
988 for (elem = info->snapshots; elem; elem = elem->next) { in bdrv_node_info_dump()
H A Dqcow2-refcount.c2243 sn = s->snapshots + i; in calculate_refcounts()
2961 if ((chk & QCOW2_OL_INACTIVE_L1) && s->snapshots) { in qcow2_check_metadata_overlap()
2963 if (s->snapshots[i].l1_size && in qcow2_check_metadata_overlap()
2964 overlaps_with(s->snapshots[i].l1_table_offset, in qcow2_check_metadata_overlap()
2965 s->snapshots[i].l1_size * L1E_SIZE)) { in qcow2_check_metadata_overlap()
2995 if ((chk & QCOW2_OL_INACTIVE_L2) && s->snapshots) { in qcow2_check_metadata_overlap()
2997 uint64_t l1_ofs = s->snapshots[i].l1_table_offset; in qcow2_check_metadata_overlap()
2998 uint32_t l1_sz = s->snapshots[i].l1_size; in qcow2_check_metadata_overlap()
/qemu/tests/qemu-iotests/tests/
H A Dqcow2-internal-snapshots.out1 QA output created by qcow2-internal-snapshots
55 === qemu-img snapshot can revert to snapshots ===
66 === Deleting snapshots ===
99 Error: Device 'disk0' is writable but does not support snapshots
101 Error: Device 'disk0' is writable but does not support snapshots
103 Error: Device 'disk0' is writable but does not support snapshots
/qemu/block/monitor/
H A Dblock-hmp-cmds.c872 QTAILQ_HEAD(, SnapshotEntry) snapshots; in hmp_info_snapshots()
909 QTAILQ_INIT(&ie->snapshots); in hmp_info_snapshots()
914 QTAILQ_INSERT_TAIL(&ie->snapshots, se, next); in hmp_info_snapshots()
934 QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots, in hmp_info_snapshots()
937 QTAILQ_REMOVE(&image_entry->snapshots, snapshot_entry, in hmp_info_snapshots()
965 if (QTAILQ_EMPTY(&image_entry->snapshots)) { in hmp_info_snapshots()
973 QTAILQ_FOREACH(snapshot_entry, &image_entry->snapshots, next) { in hmp_info_snapshots()
981 QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots, next, in hmp_info_snapshots()
/qemu/docs/interop/
H A Dprl-xml.txt24 Parallels disk consists of two parts: the set of snapshots and the disk
25 descriptor file, which stores information about all files and snapshots.
52 file snapshots, storages.
147 The software may traverse snapshots from child to parent using <ParentGUID>
H A Dqcow2.txt82 Number of snapshots contained in the image
113 nor internal snapshots are supported.
658 qcow2 supports internal snapshots. Their basic principle of operation is to
664 a write causes a COW and isn't visible in other snapshots.
670 A directory of all snapshots is stored in the snapshot table, a contiguous area
680 8 - 11: Number of entries in the L1 table of the snapshots
/qemu/migration/
H A Dmigration-hmp-cmds.c768 SnapshotInfoList *snapshots, *snapshot; in vm_completion() local
772 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0; in vm_completion()
778 snapshot = snapshots; in vm_completion()
784 qapi_free_SnapshotInfoList(snapshots); in vm_completion()
/qemu/qapi/
H A Dtransaction.json207 # For external snapshots, the dictionary contains the device, the file
221 # For internal snapshots, the dictionary contains the device and the
/qemu/docs/devel/migration/
H A Dmapped-ram.rst44 thought of as snapshots. We can further categorize them into live and
70 snapshots or the ``file:`` migration alone, mapped-ram provides
/qemu/
H A Dhmp-commands-info.hx364 .name = "snapshots",
367 .help = "show the currently saved VM snapshots",
372 ``info snapshots``
373 Show the currently saved VM snapshots.
/qemu/docs/
H A Dqcow2-cache.txt60 snapshots. The data is stored in a two-level structure similar to the
148 only during allocations and internal snapshots. In most cases they are
151 (this can change if you are using internal snapshots, so you may want
/qemu/docs/tools/
H A Dqemu-img.rst259 Lists all snapshots in the given image
510 from the displayed size. If VM snapshots are stored in the disk image,
566 A list of all internal snapshots
657 occupy with the exception of internal snapshots, dirty bitmaps, vmstate data,
668 List, apply, create or delete snapshots in image *FILENAME*.
786 support of multiple VM snapshots.
840 sector. When a disk image has multiple internal snapshots this

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