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/openbmc/qemu/tests/qemu-iotests/
H A D	142.out	51 cache.direct=on on backing 58 cache.direct=on on backing-file 74 …=TEST_DIR/t.qcow2,backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=ba… 76 cache.writeback=off on backing 77 …backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file… 79 cache.writeback=off on backing-file 80 …backing.file.filename=TEST_DIR/t.qcow2.base,node-name=image,backing.node-name=backing,backing.file… 97 cache.no-flush=on on backing 104 cache.no-flush=on on backing-file 127 cache.direct=on on backing [all …]
H A D	228	4 # Test for when a backing file is considered overridden (thus, a 28 # Need backing file and change-backing-file support 40 log('bs->backing_file: ' + node['image']['full-backing-filename'], 43 if 'backing-image' in node['image']: 44 log('bs->backing->bs->filename: ' + 45 node['image']['backing-image']['filename'], 48 log('bs->backing: (none)') 58 # Choose a funny way to describe the backing filename 65 log('--- Implicit backing file ---') 77 # Filename should be plain, and the backing node filename should [all …]
H A D	245	134 # This test opens one single disk image (without backing files) 137 # Open 'hd0' only (no backing files) 175 # This test opens an image with a backing file and tries to reopen 178 # Open hd1 omitting the backing options (hd0 will be opened 184 # We can't reopen the image passing the same options, 'backing' is mandatory 185 self.reopen(opts, {}, "backing is missing for 'hd1'") 187 # Everything works if we pass 'backing' using the existing node name 191 self.reopen(opts, {'backing': backing_node_name}) 193 # We can't use a non-existing or empty (non-NULL) node as the backing image 194 … self.reopen(opts, {'backing': 'not-found'}, "Cannot find device=\'\' nor node-name=\'not-found\'") [all …]
H A D	142	87 files="if=none,file=$TEST_IMG,backing.file.filename=$TEST_IMG.base" 88 ids="node-name=image,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=f… 93 # bs->backing 99 printf "\ncache.direct=on on backing\n" 100 …echo "$hmp_cmds" \| run_qemu -drive "$files","$ids",backing.cache.direct=on \| grep -e "Cache" -e "[… 101 printf "\ncache.direct=on on backing-file\n" 102 …echo "$hmp_cmds" \| run_qemu -drive "$files","$ids",backing.file.cache.direct=on \| grep -e "Cache" … 104 # cache.writeback is supposed to be inherited by bs->backing; bs->file 111 printf "\ncache.writeback=off on backing\n" 112 …echo "$hmp_cmds" \| run_qemu -drive "$files","$ids",backing.cache.writeback=off \| grep -e "doesn't"… [all …]
H A D	228.out	1 --- Implicit backing file --- 8 bs->backing->bs->filename: TEST_DIR/PID-base.img 13 --- change-backing-file --- 17 {"execute": "change-backing-file", "arguments": {"backing-file": "null-co://", "device": "node0", "… 20 bs->filename: json:{"backing": {"driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DI… 22 bs->backing->bs->filename: TEST_DIR/PID-base.img 24 {"execute": "change-backing-file", "arguments": {"backing-file": "TEST_DIR/PID-base.img", "device":… 29 bs->backing->bs->filename: TEST_DIR/PID-base.img 31 {"execute": "change-backing-file", "arguments": {"backing-file": "file:TEST_DIR/PID-base.img", "dev… 34 bs->filename: json:{"backing": {"driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DI… [all …]
H A D	051.out	80 === Overriding backing file === 82 Testing: -drive file=TEST_DIR/t.qcow2,driver=qcow2,backing.file.filename=TEST_DIR/t.qcow2.orig,if=n… 85 drive0 (NODE_NAME): json:{"backing": {"driver": "qcow2", "file": {"driver": "file", "filename": "TE… 88 Backing file: TEST_DIR/t.qcow2.orig (chain depth: 1) 91 Testing: -drive file=TEST_DIR/t.qcow2,driver=raw,backing.file.filename=TEST_DIR/t.qcow2.orig 92 …drive file=TEST_DIR/t.qcow2,driver=raw,backing.file.filename=TEST_DIR/t.qcow2.orig: Driver doesn't… 94 Testing: -drive file=TEST_DIR/t.qcow2,file.backing.driver=file,file.backing.filename=TEST_DIR/t.qco… 95 …e file=TEST_DIR/t.qcow2,file.backing.driver=file,file.backing.filename=TEST_DIR/t.qcow2.orig: Driv… 97 Testing: -drive file=TEST_DIR/t.qcow2,file.backing.driver=qcow2,file.backing.file.filename=TEST_DIR… 98 …ile=TEST_DIR/t.qcow2,file.backing.driver=qcow2,file.backing.file.filename=TEST_DIR/t.qcow2.orig: D… [all …]
H A D	155	4 # Test whether the backing BDSs are correct after completion of a 6 # mode=existing and blockdev-mirror) the backing chain should not be 39 # target_backing: If existing is True: Use this filename as the backing file 41 # (None: no backing file) 42 # target_blockdev_backing: If existing is True: Pass this dict as "backing" 44 # (None: do not pass "backing") 45 # target_real_backing: If existing is True: The real filename of the backing 49 # target_open_with_backing: If True, the target image is added with its backing 51 # opens it without a backing file and job completion 52 # is supposed to open the backing chain. [all …]
H A D	225	`4 # Test vmdk backing file correlation 58 backing=$3 60 if [ -z "$backing" ]; then 61 backing="null" 63 backing="'$backing'" 72 'backing': $backing }" 75 overlay_opts=$(make_opts overlay "$TEST_IMG" backing) 76 base_opts=$(make_opts backing "$TEST_IMG.base") 77 not_base_opts=$(make_opts backing "$TEST_IMG.not_base") 79 not_vmdk_opts="{ 'node-name': 'backing', 'driver': 'null-co' }" [all …]`
H A D	267	126 echo "=== -blockdev with a backing file ===" 132 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \ 134 -blockdev driver=$IMGFMT,file=file,backing=backing-file,node-name=fmt 137 run_test -blockdev driver=file,filename="$TEST_IMG.base",node-name=backing-file \ 138 -blockdev driver=$IMGFMT,file=backing-file,node-name=backing-fmt \ 140 -blockdev driver=$IMGFMT,file=file,backing=backing-fmt,node-name=fmt 142 # A snapshot should be present on the overlay, but not the backing file 146 echo Internal snapshots on backing file: 150 echo "=== -blockdev with NBD server on the backing file ===" 156 nbd_server_add -w backing-fmt [all …]
H A D	301.out	`5 qemu-img: TEST_DIR/t.IMGFMT: Backing file specified without backing format 11 backing file: TEST_DIR/t.IMGFMT.base 15 Could not open backing image. 17 Could not open backing image. 23 Could not open backing image. 25 qemu-img: TEST_DIR/t.IMGFMT: unrecognized backing format 'garbage' 30 backing file: TEST_DIR/t.IMGFMT.base 33 qemu-img: TEST_DIR/t.IMGFMT: Backing file specified without backing format 39 backing file: TEST_DIR/t.IMGFMT.base 41 == commit cannot change type of raw backing file ==`
H A D	130	4 # Test that temporary backing file overrides (on the command line or in 63 # Test that a backing file isn't written 64 _launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base" 70 # Make sure that if there was a backing file that was just overridden on the 71 # command line, that backing file is retained, with the right format 73 _launch_qemu -drive id=testdisk,file="$TEST_IMG",backing.file.filename="$TEST_IMG.base",backing.dri… 83 # Test that a backing file isn't written 85 $QEMU_IO -c "open -o backing.file.filename=$TEST_IMG.base,lazy-refcounts=on $TEST_IMG" -c "write 0 … 88 # Make sure that if there was a backing file that was just overridden on the 89 # command line, that backing file is retained, with the right format [all …]
H A D	051.pc.out	80 === Overriding backing file === 82 Testing: -drive file=TEST_DIR/t.qcow2,driver=qcow2,backing.file.filename=TEST_DIR/t.qcow2.orig,if=n… 85 drive0 (NODE_NAME): json:{"backing": {"driver": "qcow2", "file": {"driver": "file", "filename": "TE… 88 Backing file: TEST_DIR/t.qcow2.orig (chain depth: 1) 91 Testing: -drive file=TEST_DIR/t.qcow2,driver=raw,backing.file.filename=TEST_DIR/t.qcow2.orig 92 …drive file=TEST_DIR/t.qcow2,driver=raw,backing.file.filename=TEST_DIR/t.qcow2.orig: Driver doesn't… 94 Testing: -drive file=TEST_DIR/t.qcow2,file.backing.driver=file,file.backing.filename=TEST_DIR/t.qco… 95 …e file=TEST_DIR/t.qcow2,file.backing.driver=file,file.backing.filename=TEST_DIR/t.qcow2.orig: Driv… 97 Testing: -drive file=TEST_DIR/t.qcow2,file.backing.driver=qcow2,file.backing.file.filename=TEST_DIR… 98 …ile=TEST_DIR/t.qcow2,file.backing.driver=qcow2,file.backing.file.filename=TEST_DIR/t.qcow2.orig: D… [all …]
H A D	224.out	`4 {"execute": "blockdev-add", "arguments": {"backing": {"backing": {"backing": {"driver": "null-co"},… 6 …backing\": {\"driver\": \"null-co\"}, \"driver\": \"IMGFMT\", \"file\": {\"driver\": \"file\", \"f… 13 {"execute": "blockdev-add", "arguments": {"backing": {"backing": {"backing": {"driver": "null-co"},… 15 …backing\": {\"driver\": \"null-co\"}, \"driver\": \"IMGFMT\", \"file\": {\"driver\": \"file\", \"f…`
H A D	191.out	`119 "backing-image": { 127 "backing-filename-format": "IMGFMT", 133 "full-backing-filename": "TEST_DIR/t.IMGFMT.base", 134 "backing-filename": "TEST_DIR/t.IMGFMT.base", 190 "backing-image": { 198 "backing-filename-format": "IMGFMT", 204 "full-backing-filename": "TEST_DIR/t.IMGFMT.base", 205 "backing-filename": "TEST_DIR/t.IMGFMT.base", 261 "backing-image": { 269 "backing-filename-format": "IMGFMT", [all …]`
H A D	043	`2 # group: rw auto backing 4 # Test that qemu-img info --backing-chain detects infinite loops 43 # Any format supporting backing files 53 echo "== backing file references self ==" 54 _img_info --backing-chain 63 _img_info --backing-chain 76 _img_info --backing-chain 86 # Exclude backing format, since qed differs from qcow2 on what gets stored 87 _img_info --backing-chain \| grep -v '^backing file format:' 91 _img_info --backing-chain --output=json \| grep -v 'backing-filename-format'`
H A D	020	2 # group: rw backing auto quick 4 # Commit changes to backing file 48 # Any format supporting backing files 67 # Some clusters with alternating backing file/image file reads 70 # Complete backing clusters 75 echo "Creating test image with backing file" 85 # Some clusters with alternating backing file/image file reads 96 echo "Reading from the backing file" 100 # Some clusters with alternating backing file/image file reads 121 # Create an image with a null backing file to which committing will fail (with [all …]
H A D	273.out	`5 …idf","backing":null} -blockdev file,node-name=topf,filename=TEST_DIR/t.IMGFMT -blockdev {"driver":… 28 "backing-image": { 29 "backing-image": { 36 "backing-filename-format": "IMGFMT", 42 "full-backing-filename": "TEST_DIR/t.IMGFMT.base", 43 "backing-filename": "TEST_DIR/t.IMGFMT.base", 46 "backing-filename-format": "IMGFMT", 52 "full-backing-filename": "TEST_DIR/t.IMGFMT.mid", 53 "backing-filename": "TEST_DIR/t.IMGFMT.mid", 109 "backing-image": { [all …]`
H A D	267.out	128 === -blockdev with a backing file === 132 …se,node-name=backing-file -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockde… 143 …backing-file -blockdev driver=IMGFMT,file=backing-file,node-name=backing-fmt -blockdev driver=file… 157 Internal snapshots on backing file: 159 === -blockdev with NBD server on the backing file === 162 …backing-file -blockdev driver=IMGFMT,file=backing-file,node-name=backing-fmt -blockdev driver=file… 165 (qemu) nbd_server_add -w backing-fmt 178 Internal snapshots on backing file:
H A D	043.out	4 == backing file references self == 5 qemu-img: Backing file 'TEST_DIR/t.IMGFMT' creates an infinite loop. 10 qemu-img: Backing file 'TEST_DIR/t.IMGFMT' creates an infinite loop. 17 qemu-img: Backing file 'TEST_DIR/t.IMGFMT.2.base' creates an infinite loop. 27 backing file: TEST_DIR/t.IMGFMT.2.base 33 backing file: TEST_DIR/t.IMGFMT.1.base 47 "full-backing-filename": "TEST_DIR/t.IMGFMT.2.base", 48 "backing-filename": "TEST_DIR/t.IMGFMT.2.base", 56 "full-backing-filename": "TEST_DIR/t.IMGFMT.1.base", 57 "backing-filename": "TEST_DIR/t.IMGFMT.1.base",
H A D	279	`2 # group: rw backing quick 4 # Test qemu-img --backing-chain --image-opts 38 # Backing files are required... 50 echo '== qemu-img info --backing-chain ==' 51 _img_info --backing-chain \| _filter_img_info \| grep -v 'backing file format' 54 echo '== qemu-img info --backing-chain --image-opts ==' 55 TEST_IMG="driver=$IMGFMT,file.driver=file,file.filename=$TEST_IMG" _img_info --backing-chain --imag… 56 \| _filter_img_info \| grep -v 'backing file format'`
H A D	224	`29 # Need backing file support (for arbitrary backing formats) 61 # Change the bottom-most image's backing file (to null-co://) 70 backing={ 77 'backing': { 84 'backing': { 130 assert top_options['backing']['driver'] == 'commit_top' 131 # And the mid image is commit_top's backing image 132 mid_options = top_options['backing']['backing'] 134 # The mid image should appear as the immediate backing BDS 136 mid_options = top_options['backing']`
H A D	019	2 # group: rw backing auto quick 4 # When using a backing file for the output image in qemu-img convert, 5 # the backing file clusters must not copied. The data must still be 45 # Any format supporting backing files 66 # Some clusters with alternating backing file/image file reads 69 # Complete backing clusters 74 echo "Creating test image with backing file" 84 # Some clusters with alternating backing file/image file reads 105 echo "Checking if backing clusters are allocated when they shouldn't" 108 # Complete backing clusters [all …]
H A D	097	2 # group: rw auto backing 4 # Commit changes into backing chains and empty the top image if the 5 # backing image is not explicitly specified 43 # Any format supporting backing files and bdrv_make_empty 50 # 0: Two-layer backing chain, commit to upper backing file (implicitly) 52 # 1: Two-layer backing chain, commit to upper backing file (explicitly) 54 # 2: Two-layer backing chain, commit to upper backing file (implicitly with -d) 56 # 3: Two-layer backing chain, commit to lower backing file 82 # first backing file in the chain)
/openbmc/linux/Documentation/ABI/testing/
H A D	sysfs-block-bcache	5 A write to this file causes the backing device or cache to be 6 unregistered. If a backing device had dirty data in the cache, 9 all associated backing devices before unregistering themselves. 21 For a backing device that has cache, a symlink to 28 For backing devices: integer number of full cache hits, 35 For backing devices: integer number of cache misses. 41 For backing devices: cache hits as a percentage. 47 For backing devices: Threshold past which sequential IO will 63 For backing devices: When on, writeback caching is enabled and 72 For backing devices: when off, dirty data will not be written [all …]
/openbmc/qemu/docs/tools/
H A D	qemu-img.rst	102 .. option:: --backing-chain 104 Will enumerate information about backing files in a disk image chain. Refer 210 that has a backing file. It is required to also use the ``-n`` 271 format, but note that amending the backing chain relationship should 363 Commit the changes recorded in FILENAME in its base image or backing file. 364 If the backing file is smaller than the snapshot, then the backing file will be 366 the backing file, the backing file will not be truncated. If you want the 367 backing file to match the size of the smaller snapshot, you can safely truncate 374 If the backing chain of the given image file FILENAME has more than one 375 layer, the backing file into which the changes will be committed may be [all …]

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