mirror of https://gitee.com/openkylin/qemu.git
86 lines
2.6 KiB
Bash
Executable File
86 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# group: rw quick
|
|
#
|
|
# Test qemu-img vs. unaligned images; O_DIRECT version
|
|
# (Originates from 221)
|
|
#
|
|
# Copyright (C) 2019 Red Hat, Inc.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
seq="$(basename $0)"
|
|
echo "QA output created by $seq"
|
|
|
|
status=1 # failure is the default!
|
|
|
|
_cleanup()
|
|
{
|
|
_cleanup_test_img
|
|
}
|
|
trap "_cleanup; exit \$status" 0 1 2 3 15
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common.rc
|
|
. ./common.filter
|
|
|
|
_supported_fmt raw
|
|
_supported_proto file
|
|
_supported_os Linux
|
|
|
|
_default_cache_mode none
|
|
_supported_cache_modes none directsync
|
|
|
|
echo
|
|
echo "=== Check mapping of unaligned raw image ==="
|
|
echo
|
|
|
|
# We do not know how large a physical sector is, but it is certainly
|
|
# going to be a factor of 1 MB
|
|
size=$((1 * 1024 * 1024 - 1))
|
|
|
|
# qemu-img create rounds size up to BDRV_SECTOR_SIZE
|
|
_make_test_img $size
|
|
$QEMU_IMG map --output=json --image-opts \
|
|
"driver=$IMGFMT,file.driver=file,file.filename=$TEST_IMG,cache.direct=on" \
|
|
| _filter_qemu_img_map
|
|
|
|
# so we resize it and check again
|
|
truncate --size=$size "$TEST_IMG"
|
|
$QEMU_IMG map --output=json --image-opts \
|
|
"driver=$IMGFMT,file.driver=file,file.filename=$TEST_IMG,cache.direct=on" \
|
|
| _filter_qemu_img_map
|
|
|
|
# qemu-io with O_DIRECT always writes whole physical sectors. Again,
|
|
# we do not know how large a physical sector is, so we just start
|
|
# writing from a 64 kB boundary, which should always be aligned.
|
|
offset=$((1 * 1024 * 1024 - 64 * 1024))
|
|
$QEMU_IO -c "w $offset $((size - offset))" "$TEST_IMG" | _filter_qemu_io
|
|
$QEMU_IMG map --output=json --image-opts \
|
|
"driver=$IMGFMT,file.driver=file,file.filename=$TEST_IMG,cache.direct=on" \
|
|
| _filter_qemu_img_map
|
|
|
|
# Resize it and check again -- contrary to 221, we may not get partial
|
|
# sectors here, so there should be only two areas (one zero, one
|
|
# data).
|
|
truncate --size=$size "$TEST_IMG"
|
|
$QEMU_IMG map --output=json --image-opts \
|
|
"driver=$IMGFMT,file.driver=file,file.filename=$TEST_IMG,cache.direct=on" \
|
|
| _filter_qemu_img_map
|
|
|
|
# success, all done
|
|
echo '*** done'
|
|
rm -f $seq.full
|
|
status=0
|