jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
iotests: Enhance 223 to cover qemu-img map improvements
Since qemu-img map + x-dirty-bitmap remains the easiest way to read
persistent bitmaps at the moment, it makes a reasonable place to add
coverage to ensure we do not regress on the just-added parameters to
qemu-img map.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200513181455.295267-1-eblake@redhat.com>
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tests/qemu-iotests/223
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tests/qemu-iotests/223
···
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#
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# Test reading dirty bitmap over NBD
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#
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# Copyright (C) 2018-2019 Red Hat, Inc.
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# Copyright (C) 2018-2020 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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nbd_server_start_unix_socket -f $IMGFMT -B b2 "$TEST_IMG"
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IMG="driver=nbd,server.type=unix,server.path=$nbd_unix_socket"
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$QEMU_IMG map --output=json --image-opts \
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$QEMU_IMG map --output=json --image-opts --max-length=12345 \
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"$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map
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$QEMU_IMG map --output=json --image-opts --start-offset=12345 \
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"$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map
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# success, all done
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tests/qemu-iotests/223.out
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tests/qemu-iotests/223.out
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{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}]
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[{ "start": 0, "length": 512, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
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{ "start": 512, "length": 512, "depth": 0, "zero": false, "data": false},
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{ "start": 1024, "length": 2096128, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
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{ "start": 1024, "length": 11321, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
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[{ "start": 12345, "length": 2084807, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
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{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}]
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*** done