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/qemu/tests/qemu-iotests/
H A D085.out17 'snapshot-file':'TEST_DIR/1-snapshot-v0.IMGFMT',
43 'snapshot-file': 'TEST_DIR/2-snapshot-v0.IMGFMT' } },
46 'snapshot-file': 'TEST_DIR/2-snapshot-v1.IMGFMT' } } ]
55 'snapshot-file': 'TEST_DIR/3-snapshot-v0.IMGFMT' } },
58 'snapshot-file': 'TEST_DIR/3-snapshot-v1.IMGFMT' } } ]
67 'snapshot-file': 'TEST_DIR/4-snapshot-v0.IMGFMT' } },
70 'snapshot-file': 'TEST_DIR/4-snapshot-v1.IMGFMT' } } ]
79 'snapshot-file': 'TEST_DIR/5-snapshot-v0.IMGFMT' } },
91 'snapshot-file': 'TEST_DIR/6-snapshot-v0.IMGFMT' } },
103 'snapshot-file': 'TEST_DIR/7-snapshot-v0.IMGFMT' } },
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H A D02953 echo Test loading internal snapshots where the L1 table of the snapshot
59 $QEMU_IMG snapshot -c foo "$TEST_IMG"
61 $QEMU_IMG snapshot -a foo "$TEST_IMG"
66 $QEMU_IMG snapshot -c foo "$TEST_IMG"
68 $QEMU_IMG snapshot -a foo "$TEST_IMG"
79 { $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
80 { $QEMU_IMG snapshot -a foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
91 { $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
H A D080.out27 == Invalid snapshot table ==
34 == Hitting snapshot table size limit ==
36 qemu-img: Could not create snapshot 'test': File too large
47 == Invalid L1 table (with internal snapshot in the image) ==
59 qemu-img: Could not create snapshot 'test': File too large
62 == Invalid snapshot L1 table offset ==
72 qemu-img: Could not apply snapshot 'test': Failed to load snapshot: Invalid argument
74 ERROR snapshot 1 (test) l1_offset=0x400200: L1 table is not cluster aligned; snapshot table entry c…
85 == Invalid snapshot L1 table size ==
95 qemu-img: Could not apply snapshot 'test': Failed to load snapshot: File too large
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H A D080132 { $QEMU_IMG snapshot -c test $TEST_IMG; } 2>&1 | _filter_testdir
154 { $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
170 { $QEMU_IMG snapshot -c test $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
172 { $QEMU_IMG snapshot -c test $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
178 { $QEMU_IMG snapshot -c test $TEST_IMG; } 2>&1 | _filter_testdir
184 { $QEMU_IMG snapshot -a test $TEST_IMG; } 2>&1 | _filter_testdir
185 { $QEMU_IMG snapshot -d test $TEST_IMG; } 2>&1 | _filter_testdir
192 { $QEMU_IMG snapshot -c test $TEST_IMG; } 2>&1 | _filter_testdir
198 { $QEMU_IMG snapshot -a test $TEST_IMG; } 2>&1 | _filter_testdir
199 { $QEMU_IMG snapshot -d test $TEST_IMG; } 2>&1 | _filter_testdir
H A D061124 $QEMU_IMG snapshot -c foo "$TEST_IMG"
133 $QEMU_IMG snapshot -c bar "$TEST_IMG"
146 $QEMU_IMG snapshot -d bar "$TEST_IMG"
208 $QEMU_IMG snapshot -c foo "$TEST_IMG"
213 $QEMU_IMG snapshot -a foo "$TEST_IMG"
222 $QEMU_IMG snapshot -c foo "$TEST_IMG"
226 $QEMU_IMG snapshot -a foo "$TEST_IMG"
248 $QEMU_IMG snapshot -c foo "$TEST_IMG"
253 $QEMU_IMG snapshot -a foo "$TEST_IMG"
264 $QEMU_IMG snapshot -c foo "$TEST_IMG"
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H A D260.out7 {"execute": "blockdev-snapshot-sync", "arguments": {"device": "drive0", "format": "qcow2", "snapsho…
9 check that no bitmaps are in snapshot: not found
24 {"execute": "blockdev-snapshot-sync", "arguments": {"device": "drive0", "format": "qcow2", "snapsho…
26 check that no bitmaps are in snapshot: not found
41 {"execute": "blockdev-snapshot-sync", "arguments": {"device": "drive0", "format": "qcow2", "snapsho…
43 check that no bitmaps are in snapshot: not found
H A D085153 echo === Create a single snapshot on virtio0 ===
168 echo === Invalid command - missing snapshot-file ===
187 echo === Create a couple of snapshots using blockdev-snapshot ===
199 echo === Invalid command - cannot create a snapshot using a file BDS ===
208 echo === Invalid command - snapshot node used as active layer ===
224 echo === Invalid command - snapshot node used as backing hd ===
230 echo === Invalid command - snapshot node has a backing image ===
H A D286.out7 (snapshot ID) (snapshot name) (VM state size value) (VM state size unit) (snapshot date) (snapshot …
H A D112103 $QEMU_IMG snapshot -c foo "$TEST_IMG"
118 $QEMU_IMG snapshot -c foo "$TEST_IMG"
119 $QEMU_IMG snapshot -c bar "$TEST_IMG"
121 $QEMU_IMG snapshot -c baz "$TEST_IMG"
177 $QEMU_IMG snapshot -c foo "$TEST_IMG"
226 $QEMU_IMG snapshot -c foo "$TEST_IMG"
H A D01566 $QEMU_IMG snapshot -c snap1 "$TEST_IMG"
69 $QEMU_IMG snapshot -c snap2 "$TEST_IMG"
73 $QEMU_IMG snapshot -a snap1 "$TEST_IMG"
76 $QEMU_IMG snapshot -a snap2 "$TEST_IMG"
H A D17664 for reason in snapshot bitmap; do
92 snapshot) $QEMU_IMG snapshot -c snap "$TEST_IMG" ;;
156 snapshot)
157 $QEMU_IMG snapshot -l "$TEST_IMG" |
H A D015.out5 creating first snapshot
8 creating second snapshot
11 checking first snapshot
14 checking second snapshot
H A D261.out55 Repairing snapshot table entry 0 is incomplete
56 Repairing snapshot table entry 2 is incomplete
88 === Add new snapshot ===
185 qemu-img: ERROR failed to read the snapshot table: Too much extra metadata in snapshot table entry 3
189 Discarding too much extra metadata in snapshot table entry 3 (65536 > 1024)
208 qemu-img: ERROR failed to read the snapshot table: Snapshot table is too big
212 Discarding 1 overhanging snapshots (snapshot table is too big)
240 qemu-img: ERROR failed to read the snapshot table: Too much extra metadata in snapshot table entry …
244 Discarding too much extra metadata in snapshot table entry 505 (116944 > 1024)
245 Discarding 1 overhanging snapshots (snapshot table is too big)
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H A D051346 …P 0x22 0 4k\"" | run_qemu -drive file="$TEST_IMG",if=none,id=$device_id -snapshot | _filter_qemu_io
347 echo "qemu-io $device_id \"write -P 0x22 0 4k\"" | run_qemu -drive file="$TEST_IMG",snapshot=on,if=…
348 …P 0x22 0 4k\"" | run_qemu -drive file.filename="$TEST_IMG",driver=qcow2,snapshot=on,if=none,id=$de…
350 …2 0 4k\"" | run_qemu -drive file.filename="$TEST_IMG",driver=qcow2,if=none,id=$device_id -snapshot\
352 …2 0 4k\"" | run_qemu -drive file="file:$TEST_IMG",if=none,id=$device_id -snapshot | _filter_qemu_io
357 …P 0x22 0 4k\"" | run_qemu -drive file="$TEST_IMG",if=none,id=$device_id -snapshot | _filter_qemu_io
358 echo "qemu-io $device_id \"write -P 0x22 0 4k\"" | run_qemu -drive file="$TEST_IMG",snapshot=on,if=…
363 echo "qemu-io $device_id \"write -P 0x22 0 4k\"" | run_qemu -drive file="$TEST_IMG",snapshot=off,if…
368 run_qemu -drive file="$TEST_IMG",snapshot=on,if=none,id=$device_id |
378 TMPDIR=/nonexistent run_qemu -drive driver=null-co,snapshot=on |
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H A D144.out11 { 'execute': 'blockdev-snapshot-sync',
14 'snapshot-file':'TEST_DIR/tmp.IMGFMT',
47 { 'execute': 'blockdev-snapshot-sync',
50 'snapshot-file':'TEST_DIR/tmp2.IMGFMT',
H A D05839 nbd_server_start_unix_socket "$TEST_IMG" -l snapshot.name=$1
76 $QEMU_IMG snapshot -c sn1 "$TEST_IMG"
107 $QEMU_IMG convert "$TEST_IMG" -l snapshot.name=sn1 -O qcow2 "$converted_image"
H A D173.out13 'snapshot-file': 'TEST_DIR/image.snp1',
14 'snapshot-node-name': 'snp1'
16 'execute': 'blockdev-snapshot-sync'
H A D261143 $QEMU_IMG snapshot -c sn0 "$TEST_IMG.v2.orig"
144 $QEMU_IMG snapshot -c sn1 "$TEST_IMG.v2.orig"
145 $QEMU_IMG snapshot -c sn2 "$TEST_IMG.v2.orig"
276 $QEMU_IMG snapshot -c sn3 "$TEST_IMG"
288 $QEMU_IMG snapshot -d $sn "$TEST_IMG"
298 $QEMU_IMG snapshot -c sn3 "$TEST_IMG"
/qemu/docs/system/
H A Dimages.rst30 If you use the option ``-snapshot``, all disk images are considered as
47 Use the monitor command ``savevm`` to create a new VM snapshot or
49 snapshot in addition to its numerical ID.
51 Use ``loadvm`` to restore a VM snapshot and ``delvm`` to remove a VM
52 snapshot. ``info snapshots`` lists the available snapshots with their
63 A VM snapshot is made of a VM state info (its size is shown in
64 ``info snapshots``) and a snapshot of every writable disk image. The VM
67 The size of a snapshot in a disk image is difficult to evaluate and is
70 snapshot would need a full copy of all the disk images).
72 When using the (unrelated) ``-snapshot`` option
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H A Dreplay.rst39 -drive file=disk.qcow2,if=none,snapshot,id=img-direct \\
50 -drive file=disk.qcow2,if=none,snapshot,id=img-direct \\
106 -drive file=disk.qcow2,if=none,snapshot,id=img-direct
123 Default starting snapshot name may be specified with icount field
129 This snapshot is created at start of recording and restored at start
203 execute the code in backwards direction, but can load a snapshot and
217 #. loading the snapshot
221 * loading the snapshot again
226 * proceeding to the p.1 with the earlier snapshot
229 created. This can be done by omitting ``snapshot`` option
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/qemu/qapi/
H A Dtransaction.json60 # @blockdev-snapshot: Since 2.5
62 # @blockdev-snapshot-internal-sync: Since 1.7
64 # @blockdev-snapshot-sync: since 1.1
79 'blockdev-backup', 'blockdev-snapshot',
80 'blockdev-snapshot-internal-sync', 'blockdev-snapshot-sync',
177 'blockdev-snapshot': 'BlockdevSnapshotWrapper',
179 'blockdev-snapshot-sync': 'BlockdevSnapshotSyncWrapper',
208 # to use for the new snapshot, and the format. The default format, if
211 # Each new snapshot defaults to being created by QEMU (wiping any
219 # On failure, the original disks pre-snapshot attempt will be used.
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/qemu/docs/interop/
H A Dprl-xml.txt17 uses auxiliary xml "Snapshot.xml", which allows to store optional snapshot
29 capable of storing current state. A snapshot has UUID and
33 snapshot and some earlier snapshot.
38 Root image snapshot image with no parent, the root of snapshot tree.
55 Snapshot It is not a snapshot in the classical sense because it
96 This element of the file describes the root image and all snapshot images.
129 The Snapshots element describes the snapshot relations with the snapshot tree.
145 * ParentGUID - GUID of the image of the parent snapshot.
148 field as reference. ParentGUID of root snapshot is
150 snapshot. Top snapshot could be described via two ways: via TopGUID child
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/qemu/tests/qemu-iotests/tests/
H A Dqcow2-internal-snapshots77 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
106 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
113 $QEMU_IMG snapshot -a snap0 "$TEST_IMG"
115 $QEMU_IMG snapshot -a snap1 "$TEST_IMG"
137 $QEMU_IMG snapshot -l "$TEST_IMG" | _filter_date | _filter_vmstate_size
/qemu/docs/devel/migration/
H A Dmapped-ram.rst47 - Non-live snapshot
49 If the use case requires a VM to be stopped before taking a snapshot,
54 Note: if a snapshot is taken of a running VM, but the VM will be
55 stopped after the snapshot by the admin, then consider stopping it
56 right before the snapshot to take benefit of the performance gains
59 - Live snapshot
62 the snapshot operation, then mapped-ram migration can still be used,
64 background-snapshot should be evaluated as well. One benefit of
65 mapped-ram in this scenario is portability since background-snapshot
/qemu/replay/
H A Dreplay-debugging.c181 char *snapshot = NULL; in replay_seek() local
189 snapshot = replay_find_nearest_snapshot(icount, &snapshot_icount); in replay_seek()
190 if (snapshot) { in replay_seek()
194 load_snapshot(snapshot, NULL, false, NULL, errp); in replay_seek()
196 g_free(snapshot); in replay_seek()

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