xref: /openbmc/qemu/tests/qemu-iotests/024 (revision b66ff2c2)
111a82d14SPhilippe Mathieu-Daudé#!/usr/bin/env bash
2939e1640SKevin Wolf#
3939e1640SKevin Wolf# Rebasing COW images
4939e1640SKevin Wolf#
5939e1640SKevin Wolf# Copyright (C) 2009 Red Hat, Inc.
6939e1640SKevin Wolf#
7939e1640SKevin Wolf# This program is free software; you can redistribute it and/or modify
8939e1640SKevin Wolf# it under the terms of the GNU General Public License as published by
9939e1640SKevin Wolf# the Free Software Foundation; either version 2 of the License, or
10939e1640SKevin Wolf# (at your option) any later version.
11939e1640SKevin Wolf#
12939e1640SKevin Wolf# This program is distributed in the hope that it will be useful,
13939e1640SKevin Wolf# but WITHOUT ANY WARRANTY; without even the implied warranty of
14939e1640SKevin Wolf# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15939e1640SKevin Wolf# GNU General Public License for more details.
16939e1640SKevin Wolf#
17939e1640SKevin Wolf# You should have received a copy of the GNU General Public License
18939e1640SKevin Wolf# along with this program.  If not, see <http://www.gnu.org/licenses/>.
19939e1640SKevin Wolf#
20939e1640SKevin Wolf
21939e1640SKevin Wolf# creator
22939e1640SKevin Wolfowner=kwolf@redhat.com
23939e1640SKevin Wolf
24939e1640SKevin Wolfseq=`basename $0`
25939e1640SKevin Wolfecho "QA output created by $seq"
26939e1640SKevin Wolf
27939e1640SKevin Wolfstatus=1	# failure is the default!
28939e1640SKevin Wolf
29939e1640SKevin Wolf_cleanup()
30939e1640SKevin Wolf{
31939e1640SKevin Wolf    _cleanup_test_img
32f91ecbd7SMax Reitz    _rm_test_img "$TEST_DIR/t.$IMGFMT.base_old"
33f91ecbd7SMax Reitz    _rm_test_img "$TEST_DIR/t.$IMGFMT.base_new"
3428036a7fSMax Reitz
35f91ecbd7SMax Reitz    _rm_test_img "$TEST_DIR/subdir/t.$IMGFMT"
36f91ecbd7SMax Reitz    _rm_test_img "$TEST_DIR/subdir/t.$IMGFMT.base_old"
37f91ecbd7SMax Reitz    _rm_test_img "$TEST_DIR/subdir/t.$IMGFMT.base_new"
3828036a7fSMax Reitz    rmdir "$TEST_DIR/subdir" 2> /dev/null
39939e1640SKevin Wolf}
40939e1640SKevin Wolftrap "_cleanup; exit \$status" 0 1 2 3 15
41939e1640SKevin Wolf
42939e1640SKevin Wolf# get standard environment, filters and checks
43939e1640SKevin Wolf. ./common.rc
44939e1640SKevin Wolf. ./common.filter
45939e1640SKevin Wolf. ./common.pattern
46939e1640SKevin Wolf
47f5a4bbd9SStefan Hajnoczi# Currently only qcow2 and qed support rebasing
48f5a4bbd9SStefan Hajnoczi_supported_fmt qcow2 qed
491f7bf7d0SPeter Lieven_supported_proto file
50939e1640SKevin Wolf_supported_os Linux
51939e1640SKevin Wolf
52939e1640SKevin WolfCLUSTER_SIZE=65536
53939e1640SKevin Wolf
54939e1640SKevin Wolf# Cluster allocations to be tested:
55939e1640SKevin Wolf#
56939e1640SKevin Wolf# Backing (old) 11  --  11  --  11  --  11  --
57939e1640SKevin Wolf# Backing (new) 22  22  --  --  22  22  --  --
58939e1640SKevin Wolf# COW image     33  33  33  33  --  --  --  --
59d586bc63SKevin Wolf#
60d586bc63SKevin Wolf# The pattern is written twice to have both an alloc -> non-alloc and a
61d586bc63SKevin Wolf# non-alloc -> alloc transition in the COW image.
62939e1640SKevin Wolf
63939e1640SKevin Wolfecho "Creating backing file"
64939e1640SKevin Wolfecho
65939e1640SKevin Wolf
66f19f1189SFam ZhengTEST_IMG_SAVE="$TEST_IMG"
67f19f1189SFam ZhengTEST_IMG="$TEST_IMG.base_old"
68f19f1189SFam Zheng
69939e1640SKevin Wolf_make_test_img 1G
70dd0c35d6SStefan Hajnocziio_pattern writev 0 $CLUSTER_SIZE $((2 * CLUSTER_SIZE)) 8 0x11
71f19f1189SFam Zheng
72f19f1189SFam ZhengTEST_IMG="$TEST_IMG_SAVE.base_new"
73939e1640SKevin Wolf
74939e1640SKevin Wolfecho "Creating new backing file"
75939e1640SKevin Wolfecho
76939e1640SKevin Wolf
77939e1640SKevin Wolf_make_test_img 1G
78dd0c35d6SStefan Hajnocziio_pattern writev 0 $((2 * CLUSTER_SIZE)) $((4 * CLUSTER_SIZE)) 4 0x22
79f19f1189SFam Zheng
80f19f1189SFam Zheng
81f19f1189SFam ZhengTEST_IMG="$TEST_IMG_SAVE"
82939e1640SKevin Wolf
83939e1640SKevin Wolfecho "Creating COW image"
84939e1640SKevin Wolfecho
85939e1640SKevin Wolf
86*b66ff2c2SEric Blake_make_test_img -b "$TEST_IMG.base_old" -F $IMGFMT 1G
87939e1640SKevin Wolfio_pattern writev 0 $((4 * CLUSTER_SIZE)) 0 1 0x33
88d586bc63SKevin Wolfio_pattern writev $((8 * CLUSTER_SIZE)) $((4 * CLUSTER_SIZE)) 0 1 0x33
89939e1640SKevin Wolf
90939e1640SKevin Wolfecho "Read before the rebase to make sure everything is set up correctly"
91939e1640SKevin Wolfecho
92939e1640SKevin Wolfio_pattern readv $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
93939e1640SKevin Wolfio_pattern readv $((1 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
94939e1640SKevin Wolfio_pattern readv $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
95939e1640SKevin Wolfio_pattern readv $((3 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
96939e1640SKevin Wolfio_pattern readv $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11
97939e1640SKevin Wolfio_pattern readv $((5 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00
98939e1640SKevin Wolfio_pattern readv $((6 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11
99939e1640SKevin Wolfio_pattern readv $((7 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00
100d586bc63SKevin Wolfio_pattern readv $((8 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
101d586bc63SKevin Wolfio_pattern readv $((9 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
102d586bc63SKevin Wolfio_pattern readv $((10 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
103d586bc63SKevin Wolfio_pattern readv $((11 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
104d586bc63SKevin Wolfio_pattern readv $((12 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11
105d586bc63SKevin Wolfio_pattern readv $((13 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00
106d586bc63SKevin Wolfio_pattern readv $((14 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11
107d586bc63SKevin Wolfio_pattern readv $((15 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00
108939e1640SKevin Wolf
109939e1640SKevin Wolfecho
110939e1640SKevin Wolfecho Rebase and test again
111939e1640SKevin Wolfecho
112*b66ff2c2SEric Blake$QEMU_IMG rebase -b "$TEST_IMG.base_new" -F $IMGFMT "$TEST_IMG"
113939e1640SKevin Wolfio_pattern readv $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
114939e1640SKevin Wolfio_pattern readv $((1 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
115939e1640SKevin Wolfio_pattern readv $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
116939e1640SKevin Wolfio_pattern readv $((3 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
117939e1640SKevin Wolfio_pattern readv $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11
118939e1640SKevin Wolfio_pattern readv $((5 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00
119939e1640SKevin Wolfio_pattern readv $((6 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11
120939e1640SKevin Wolfio_pattern readv $((7 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00
121d586bc63SKevin Wolfio_pattern readv $((8 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
122d586bc63SKevin Wolfio_pattern readv $((9 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
123d586bc63SKevin Wolfio_pattern readv $((10 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
124d586bc63SKevin Wolfio_pattern readv $((11 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33
125d586bc63SKevin Wolfio_pattern readv $((12 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11
126d586bc63SKevin Wolfio_pattern readv $((13 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00
127d586bc63SKevin Wolfio_pattern readv $((14 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11
128d586bc63SKevin Wolfio_pattern readv $((15 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00
129939e1640SKevin Wolf
13028036a7fSMax Reitzecho
13128036a7fSMax Reitzecho "=== Test rebase in a subdirectory of the working directory ==="
13228036a7fSMax Reitzecho
13328036a7fSMax Reitz
13428036a7fSMax Reitz# Clean up the old images beforehand so they do not interfere with
13528036a7fSMax Reitz# this test
13628036a7fSMax Reitz_cleanup
13728036a7fSMax Reitz
13828036a7fSMax Reitzmkdir "$TEST_DIR/subdir"
13928036a7fSMax Reitz
14028036a7fSMax Reitz# Relative to the overlay
14128036a7fSMax ReitzBASE_OLD_OREL="t.$IMGFMT.base_old"
14228036a7fSMax ReitzBASE_NEW_OREL="t.$IMGFMT.base_new"
14328036a7fSMax Reitz
14428036a7fSMax Reitz# Relative to $TEST_DIR (which is going to be our working directory)
14528036a7fSMax ReitzOVERLAY_WREL="subdir/t.$IMGFMT"
14628036a7fSMax Reitz
14728036a7fSMax ReitzBASE_OLD="$TEST_DIR/subdir/$BASE_OLD_OREL"
14828036a7fSMax ReitzBASE_NEW="$TEST_DIR/subdir/$BASE_NEW_OREL"
14928036a7fSMax ReitzOVERLAY="$TEST_DIR/$OVERLAY_WREL"
15028036a7fSMax Reitz
15128036a7fSMax Reitz# Test done here:
15228036a7fSMax Reitz#
15328036a7fSMax Reitz# Backing (old): 11 11 -- 11
15428036a7fSMax Reitz# Backing (new): -- 22 22 11
15528036a7fSMax Reitz# Overlay:       -- -- -- --
15628036a7fSMax Reitz#
15728036a7fSMax Reitz# Rebasing works, we have verified that above.  Here, we just want to
15828036a7fSMax Reitz# see that rebasing is done for the correct target backing file.
15928036a7fSMax Reitz
16028036a7fSMax ReitzTEST_IMG=$BASE_OLD _make_test_img 1M
16128036a7fSMax ReitzTEST_IMG=$BASE_NEW _make_test_img 1M
162*b66ff2c2SEric BlakeTEST_IMG=$OVERLAY _make_test_img -b "$BASE_OLD_OREL" -F $IMGFMT 1M
16328036a7fSMax Reitz
16428036a7fSMax Reitzecho
16528036a7fSMax Reitz
16628036a7fSMax Reitz$QEMU_IO "$BASE_OLD" \
16728036a7fSMax Reitz    -c "write -P 0x11 $((0 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
16828036a7fSMax Reitz    -c "write -P 0x11 $((3 * CLUSTER_SIZE)) $((1 * CLUSTER_SIZE))" \
16928036a7fSMax Reitz    | _filter_qemu_io
17028036a7fSMax Reitz
17128036a7fSMax Reitz$QEMU_IO "$BASE_NEW" \
17228036a7fSMax Reitz    -c "write -P 0x22 $((1 * CLUSTER_SIZE)) $((2 * CLUSTER_SIZE))" \
17328036a7fSMax Reitz    -c "write -P 0x11 $((3 * CLUSTER_SIZE)) $((1 * CLUSTER_SIZE))" \
17428036a7fSMax Reitz    | _filter_qemu_io
17528036a7fSMax Reitz
17628036a7fSMax Reitzecho
17728036a7fSMax Reitz
17828036a7fSMax Reitzpushd "$TEST_DIR" >/dev/null
179*b66ff2c2SEric Blake$QEMU_IMG rebase -f "$IMGFMT" -b "$BASE_NEW_OREL" -F $IMGFMT "$OVERLAY_WREL"
18028036a7fSMax Reitzpopd >/dev/null
18128036a7fSMax Reitz
18228036a7fSMax Reitz# Verify the backing path is correct
183*b66ff2c2SEric BlakeTEST_IMG=$OVERLAY _img_info | grep '^backing file:'
18428036a7fSMax Reitz
18528036a7fSMax Reitzecho
18628036a7fSMax Reitz
18728036a7fSMax Reitz# Verify the data is correct
18828036a7fSMax Reitz$QEMU_IO "$OVERLAY" \
18928036a7fSMax Reitz    -c "read -P 0x11 $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
19028036a7fSMax Reitz    -c "read -P 0x11 $((1 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
19128036a7fSMax Reitz    -c "read -P 0x00 $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
19228036a7fSMax Reitz    -c "read -P 0x11 $((3 * CLUSTER_SIZE)) $CLUSTER_SIZE" \
19328036a7fSMax Reitz    | _filter_qemu_io
19428036a7fSMax Reitz
19528036a7fSMax Reitzecho
19628036a7fSMax Reitz
19728036a7fSMax Reitz# Verify that cluster #3 is not allocated (because it is the same in
19828036a7fSMax Reitz# $BASE_OLD and $BASE_NEW)
19928036a7fSMax Reitz$QEMU_IMG map "$OVERLAY" | _filter_qemu_img_map
20028036a7fSMax Reitz
201939e1640SKevin Wolf
202939e1640SKevin Wolf# success, all done
203939e1640SKevin Wolfecho "*** done"
204939e1640SKevin Wolfrm -f $seq.full
205939e1640SKevin Wolfstatus=0
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