mirror of https://gitlab.com/qemu-project/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
126 lines
3.5 KiB
Bash
126 lines
3.5 KiB
Bash
#!/usr/bin/env bash
|
|
# group: rw auto backing quick
|
|
#
|
|
# Tests for rebasing COW images that require zero cluster support
|
|
#
|
|
# 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/>.
|
|
#
|
|
|
|
# creator
|
|
owner=hreitz@redhat.com
|
|
|
|
seq=$(basename $0)
|
|
echo "QA output created by $seq"
|
|
|
|
status=1 # failure is the default!
|
|
|
|
_cleanup()
|
|
{
|
|
_cleanup_test_img
|
|
_rm_test_img "$TEST_IMG.base_new"
|
|
}
|
|
trap "_cleanup; exit \$status" 0 1 2 3 15
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common.rc
|
|
. ./common.filter
|
|
. ./common.pattern
|
|
|
|
# Currently only qcow2 and qed support rebasing, and only qcow2 v3 has
|
|
# zero cluster support
|
|
_supported_fmt qcow2
|
|
_unsupported_imgopts 'compat=0.10'
|
|
_supported_proto file fuse
|
|
_supported_os Linux
|
|
|
|
CLUSTER_SIZE=65536
|
|
|
|
echo
|
|
echo "=== Test rebase without input base ==="
|
|
echo
|
|
|
|
# Cluster allocations to be tested:
|
|
#
|
|
# Backing (new) 11 -- 11 -- 11 --
|
|
# COW image 22 22 11 11 -- --
|
|
#
|
|
# Expected result:
|
|
#
|
|
# COW image 22 22 11 11 00 --
|
|
#
|
|
# (Cluster 2 might be "--" after the rebase, too, but rebase just
|
|
# compares the new backing file to the old one and disregards the
|
|
# overlay. Therefore, it will never discard overlay clusters.)
|
|
|
|
_make_test_img $((6 * CLUSTER_SIZE))
|
|
TEST_IMG="$TEST_IMG.base_new" _make_test_img $((6 * CLUSTER_SIZE))
|
|
|
|
echo
|
|
|
|
$QEMU_IO "$TEST_IMG" \
|
|
-c "write -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
|
|
-c "write -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
|
|
| _filter_qemu_io
|
|
|
|
$QEMU_IO "$TEST_IMG.base_new" \
|
|
-c "write -P 0x11 $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
|
|
-c "write -P 0x11 $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
|
|
-c "write -P 0x11 $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
|
|
| _filter_qemu_io
|
|
|
|
echo
|
|
|
|
# This should be a no-op
|
|
$QEMU_IMG rebase -b "" "$TEST_IMG"
|
|
|
|
# Verify the data is correct
|
|
$QEMU_IO "$TEST_IMG" \
|
|
-c "read -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
|
|
-c "read -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
|
|
-c "read -P 0x00 $((4 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
|
|
| _filter_qemu_io
|
|
|
|
echo
|
|
|
|
# Verify the allocation status (first four cluster should be allocated
|
|
# in TEST_IMG, clusters 4 and 5 should be unallocated (marked as zero
|
|
# clusters here because there is no backing file))
|
|
$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
|
|
|
|
echo
|
|
|
|
$QEMU_IMG rebase -b "$TEST_IMG.base_new" -F $IMGFMT "$TEST_IMG"
|
|
|
|
# Verify the data is correct
|
|
$QEMU_IO "$TEST_IMG" \
|
|
-c "read -P 0x22 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
|
|
-c "read -P 0x11 $((2 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
|
|
-c "read -P 0x00 $((4 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
|
|
| _filter_qemu_io
|
|
|
|
echo
|
|
|
|
# Verify the allocation status (first four cluster should be allocated
|
|
# in TEST_IMG, cluster 4 should be zero, and cluster 5 should be
|
|
# unallocated (signified by '"depth": 1'))
|
|
$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
|
|
|
|
|
|
# success, all done
|
|
echo "*** done"
|
|
rm -f $seq.full
|
|
status=0
|