qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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      1 #!/usr/bin/env bash
      2 # group: rw auto quick
      3 #
      4 # Test that a backing image is put back in read-only mode after
      5 # block-commit (both when it fails and when it succeeds).
      6 #
      7 # Copyright (C) 2019 Igalia, S.L.
      8 #
      9 # This program is free software; you can redistribute it and/or modify
     10 # it under the terms of the GNU General Public License as published by
     11 # the Free Software Foundation; either version 2 of the License, or
     12 # (at your option) any later version.
     13 #
     14 # This program is distributed in the hope that it will be useful,
     15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17 # GNU General Public License for more details.
     18 #
     19 # You should have received a copy of the GNU General Public License
     20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
     21 #
     22 
     23 # creator
     24 owner=berto@igalia.com
     25 
     26 seq="$(basename $0)"
     27 echo "QA output created by $seq"
     28 
     29 status=1	# failure is the default!
     30 
     31 _cleanup()
     32 {
     33     _cleanup_test_img
     34     _rm_test_img "$TEST_IMG.base"
     35     _rm_test_img "$TEST_IMG.int"
     36 }
     37 trap "_cleanup; exit \$status" 0 1 2 3 15
     38 
     39 # get standard environment, filters and checks
     40 . ./common.rc
     41 . ./common.filter
     42 . ./common.qemu
     43 
     44 # Any format implementing BlockDriver.bdrv_change_backing_file
     45 _supported_fmt qcow2 qed
     46 _supported_proto file fuse
     47 _supported_os Linux
     48 
     49 IMG_SIZE=1M
     50 
     51 # Create the images: base <- int <- active
     52 TEST_IMG="$TEST_IMG.base" _make_test_img $IMG_SIZE
     53 TEST_IMG="$TEST_IMG.int" _make_test_img -b "$TEST_IMG.base" -F $IMGFMT
     54 _make_test_img -b "$TEST_IMG.int" -F $IMGFMT
     55 
     56 # Launch QEMU with these two drives:
     57 # none0: base (read-only)
     58 # none1: base <- int <- active
     59 _launch_qemu -drive if=none,file="${TEST_IMG}.base",node-name=base,read-only=on \
     60              -drive if=none,file="${TEST_IMG}",backing.node-name=int,backing.backing=base
     61 
     62 _send_qemu_cmd $QEMU_HANDLE \
     63     "{ 'execute': 'qmp_capabilities' }" \
     64     'return'
     65 
     66 echo
     67 echo '=== Send a write command to a drive opened in read-only mode (1)'
     68 echo
     69 _send_qemu_cmd $QEMU_HANDLE \
     70     "{ 'execute': 'human-monitor-command',
     71        'arguments': {'command-line': 'qemu-io none0 \"aio_write 0 2k\"'}}" \
     72     'return'
     73 
     74 echo
     75 echo '=== Run block-commit on base using an invalid filter node name'
     76 echo
     77 _send_qemu_cmd $QEMU_HANDLE \
     78     "{ 'execute': 'block-commit',
     79        'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int',
     80                      'filter-node-name': '1234'}}" \
     81     'error'
     82 
     83 echo
     84 echo '=== Send a write command to a drive opened in read-only mode (2)'
     85 echo
     86 _send_qemu_cmd $QEMU_HANDLE \
     87     "{ 'execute': 'human-monitor-command',
     88        'arguments': {'command-line': 'qemu-io none0 \"aio_write 0 2k\"'}}" \
     89     'return'
     90 
     91 echo
     92 echo '=== Run block-commit on base using the default filter node name'
     93 echo
     94 _send_qemu_cmd $QEMU_HANDLE \
     95     "{ 'execute': 'block-commit',
     96        'arguments': {'job-id': 'job0', 'device': 'none1', 'top-node': 'int'}}" \
     97     'return'
     98 
     99 # Wait for block-commit to finish
    100 _send_qemu_cmd $QEMU_HANDLE '' \
    101     '"status": "null"'
    102 
    103 echo
    104 echo '=== Send a write command to a drive opened in read-only mode (3)'
    105 echo
    106 _send_qemu_cmd $QEMU_HANDLE \
    107     "{ 'execute': 'human-monitor-command',
    108        'arguments': {'command-line': 'qemu-io none0 \"aio_write 0 2k\"'}}" \
    109     'return'
    110 
    111 _cleanup_qemu
    112 
    113 # success, all done
    114 echo "*** done"
    115 rm -f $seq.full
    116 status=0