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572ad9783f
The patch adds some preparation parts for incompatible compression type
feature to qcow2 allowing the use different compression methods for
image clusters (de)compressing.
It is implied that the compression type is set on the image creation and
can be changed only later by image conversion, thus compression type
defines the only compression algorithm used for the image, and thus,
for all image clusters.
The goal of the feature is to add support of other compression methods
to qcow2. For example, ZSTD which is more effective on compression than ZLIB.
The default compression is ZLIB. Images created with ZLIB compression type
are backward compatible with older qemu versions.
Adding of the compression type breaks a number of tests because now the
compression type is reported on image creation and there are some changes
in the qcow2 header in size and offsets.
The tests are fixed in the following ways:
* filter out compression_type for many tests
* fix header size, feature table size and backing file offset
affected tests: 031, 036, 061, 080
header_size +=8: 1 byte compression type
7 bytes padding
feature_table += 48: incompatible feature compression type
backing_file_offset += 56 (8 + 48 -> header_change + feature_table_change)
* add "compression type" for test output matching when it isn't filtered
affected tests: 049, 060, 061, 065, 082, 085, 144, 182, 185, 198, 206,
242, 255, 274, 280
Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
QAPI part:
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200507082521.29210-2-dplotnikov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
262 lines
11 KiB
Plaintext
262 lines
11 KiB
Plaintext
=== Successful image creation (defaults) ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "size": 0}}}
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{"return": {}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-add", "arguments": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "node-name": "imgfile"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "imgfile", "size": 134217728}}}
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{"return": {}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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image: TEST_IMG
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file format: IMGFMT
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virtual size: 128 MiB (134217728 bytes)
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cluster_size: 65536
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Format specific information:
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compat: 1.1
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compression type: zlib
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lazy refcounts: false
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refcount bits: 16
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corrupt: false
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=== Successful image creation (inline blockdev-add, explicit defaults) ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "nocow": false, "preallocation": "off", "size": 0}}}
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{"return": {}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 65536, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2"}, "lazy-refcounts": false, "preallocation": "off", "refcount-bits": 16, "size": 67108864, "version": "v3"}}}
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{"return": {}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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image: TEST_IMG
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file format: IMGFMT
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virtual size: 64 MiB (67108864 bytes)
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cluster_size: 65536
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Format specific information:
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compat: 1.1
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compression type: zlib
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lazy refcounts: false
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refcount bits: 16
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corrupt: false
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=== Successful image creation (v3 non-default options) ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "nocow": true, "preallocation": "falloc", "size": 0}}}
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{"return": {}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 2097152, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2"}, "lazy-refcounts": true, "preallocation": "metadata", "refcount-bits": 1, "size": 33554432, "version": "v3"}}}
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{"return": {}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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image: TEST_IMG
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file format: IMGFMT
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virtual size: 32 MiB (33554432 bytes)
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cluster_size: 2097152
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Format specific information:
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compat: 1.1
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compression type: zlib
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lazy refcounts: true
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refcount bits: 1
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corrupt: false
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=== Successful image creation (v2 non-default options) ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "size": 0}}}
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{"return": {}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"backing-file": "TEST_DIR/PID-t.qcow2.base", "backing-fmt": "qcow2", "cluster-size": 512, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2"}, "size": 33554432, "version": "v2"}}}
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{"return": {}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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image: TEST_IMG
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file format: IMGFMT
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virtual size: 32 MiB (33554432 bytes)
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cluster_size: 512
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backing file: TEST_IMG.base
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backing file format: IMGFMT
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Format specific information:
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compat: 0.10
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compression type: zlib
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refcount bits: 16
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=== Successful image creation (encrypted) ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "encrypt": {"cipher-alg": "twofish-128", "cipher-mode": "ctr", "format": "luks", "hash-alg": "sha1", "iter-time": 10, "ivgen-alg": "plain64", "ivgen-hash-alg": "md5", "key-secret": "keysec0"}, "file": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2"}, "size": 33554432}}}
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{"return": {}}
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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image: TEST_IMG
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file format: IMGFMT
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virtual size: 32 MiB (33554432 bytes)
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encrypted: yes
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cluster_size: 65536
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Format specific information:
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compat: 1.1
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compression type: zlib
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lazy refcounts: false
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refcount bits: 16
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encrypt:
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ivgen alg: plain64
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hash alg: sha1
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cipher alg: twofish-128
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uuid: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
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format: luks
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cipher mode: ctr
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slots:
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[0]:
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active: true
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iters: XXX
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key offset: 4096
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stripes: 4000
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[1]:
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active: false
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key offset: 69632
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[2]:
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active: false
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key offset: 135168
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[3]:
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active: false
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key offset: 200704
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[4]:
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active: false
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key offset: 266240
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[5]:
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active: false
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key offset: 331776
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[6]:
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active: false
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key offset: 397312
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[7]:
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active: false
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key offset: 462848
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payload offset: 528384
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master key iters: XXX
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corrupt: false
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=== Invalid BlockdevRef ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "this doesn't exist", "size": 33554432}}}
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{"return": {}}
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Job failed: Cannot find device=this doesn't exist nor node_name=this doesn't exist
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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=== Invalid sizes ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 1234}}}
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{"return": {}}
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Job failed: Image size must be a multiple of 512 bytes
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 18446744073709551104}}}
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{"return": {}}
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Job failed: Could not resize image: Image size cannot be negative
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 9223372036854775808}}}
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{"return": {}}
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Job failed: Could not resize image: Image size cannot be negative
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 9223372036854775296}}}
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{"return": {}}
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Job failed: Could not resize image: Failed to grow the L1 table: File too large
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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=== Invalid version ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 67108864, "version": "v1"}}}
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{"error": {"class": "GenericError", "desc": "Invalid parameter 'v1'"}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "lazy-refcounts": true, "size": 67108864, "version": "v2"}}}
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{"return": {}}
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Job failed: Lazy refcounts only supported with compatibility level 1.1 and above (use version=v3 or greater)
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "refcount-bits": 8, "size": 67108864, "version": "v2"}}}
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{"return": {}}
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Job failed: Different refcount widths than 16 bits require compatibility level 1.1 or above (use version=v3 or greater)
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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=== Invalid backing file options ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"backing-file": "/dev/null", "driver": "qcow2", "file": "node0", "preallocation": "full", "size": 67108864}}}
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{"return": {}}
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Job failed: Backing file and preallocation cannot be used at the same time
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"backing-fmt": "qcow2", "driver": "qcow2", "file": "node0", "size": 67108864}}}
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{"return": {}}
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Job failed: Backing format cannot be used without backing file
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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=== Invalid cluster size ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 1234, "driver": "qcow2", "file": "node0", "size": 67108864}}}
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{"return": {}}
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Job failed: Cluster size must be a power of two between 512 and 2048k
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 128, "driver": "qcow2", "file": "node0", "size": 67108864}}}
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{"return": {}}
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Job failed: Cluster size must be a power of two between 512 and 2048k
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 4194304, "driver": "qcow2", "file": "node0", "size": 67108864}}}
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{"return": {}}
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Job failed: Cluster size must be a power of two between 512 and 2048k
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 0, "driver": "qcow2", "file": "node0", "size": 67108864}}}
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{"return": {}}
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Job failed: Cluster size must be a power of two between 512 and 2048k
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 512, "driver": "qcow2", "file": "node0", "size": 281474976710656}}}
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{"return": {}}
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Job failed: Could not resize image: Failed to grow the L1 table: File too large
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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=== Invalid refcount width ===
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "refcount-bits": 128, "size": 67108864}}}
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{"return": {}}
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Job failed: Refcount width must be a power of two and may not exceed 64 bits
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "refcount-bits": 0, "size": 67108864}}}
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{"return": {}}
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Job failed: Refcount width must be a power of two and may not exceed 64 bits
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "refcount-bits": 7, "size": 67108864}}}
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{"return": {}}
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Job failed: Refcount width must be a power of two and may not exceed 64 bits
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{"execute": "job-dismiss", "arguments": {"id": "job0"}}
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{"return": {}}
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