tests/qemu-iotests/211

   1 #!/usr/bin/env python
   2 #
   3 # Test VDI and file image creation
   4 #
   5 # Copyright (C) 2018 Red Hat, Inc.
   6 #
   7 # Creator/Owner: Kevin Wolf <kwolf@redhat.com>
   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 import iotests
  24 from iotests import imgfmt
  25
  26 iotests.verify_image_format(supported_fmts=['vdi'])
  27 iotests.verify_protocol(supported=['file'])
  28
  29 def blockdev_create(vm, options):
  30     result = vm.qmp_log('blockdev-create', job_id='job0', options=options,
  31                         filters=[iotests.filter_qmp_testfiles])
  32
  33     if 'return' in result:
  34         assert result['return'] == {}
  35         error = vm.run_job('job0')
  36         if error and 'Could not allocate bmap' in error:
  37             iotests.notrun('Insufficient memory')
  38     iotests.log("")
  39
  40 with iotests.FilePath('t.vdi') as disk_path, \
  41      iotests.VM() as vm:
  42
  43     #
  44     # Successful image creation (defaults)
  45     #
  46     iotests.log("=== Successful image creation (defaults) ===")
  47     iotests.log("")
  48
  49     size = 128 * 1024 * 1024
  50
  51     vm.launch()
  52     blockdev_create(vm, { 'driver': 'file',
  53                           'filename': disk_path,
  54                           'size': 0 })
  55
  56     vm.qmp_log('blockdev-add', driver='file', filename=disk_path,
  57                node_name='imgfile', filters=[iotests.filter_qmp_testfiles])
  58
  59     blockdev_create(vm, { 'driver': imgfmt,
  60                           'file': 'imgfile',
  61                           'size': size })
  62     vm.shutdown()
  63
  64     iotests.img_info_log(disk_path)
  65     iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
  66
  67     #
  68     # Successful image creation (explicit defaults)
  69     #
  70     iotests.log("=== Successful image creation (explicit defaults) ===")
  71     iotests.log("")
  72
  73     size = 64 * 1024 * 1024
  74
  75     vm.launch()
  76     blockdev_create(vm, { 'driver': 'file',
  77                           'filename': disk_path,
  78                           'size': 0 })
  79     blockdev_create(vm, { 'driver': imgfmt,
  80                           'file': {
  81                               'driver': 'file',
  82                               'filename': disk_path,
  83                           },
  84                           'size': size,
  85                           'preallocation': 'off' })
  86     vm.shutdown()
  87
  88     iotests.img_info_log(disk_path)
  89     iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
  90
  91     #
  92     # Successful image creation (with non-default options)
  93     #
  94     iotests.log("=== Successful image creation (with non-default options) ===")
  95     iotests.log("")
  96
  97     size = 32 * 1024 * 1024
  98
  99     vm.launch()
 100     blockdev_create(vm, { 'driver': 'file',
 101                           'filename': disk_path,
 102                           'size': 0 })
 103     blockdev_create(vm, { 'driver': imgfmt,
 104                           'file': {
 105                               'driver': 'file',
 106                               'filename': disk_path,
 107                           },
 108                           'size': size,
 109                           'preallocation': 'metadata' })
 110     vm.shutdown()
 111
 112     iotests.img_info_log(disk_path)
 113     iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path))
 114
 115     #
 116     # Invalid BlockdevRef
 117     #
 118     iotests.log("=== Invalid BlockdevRef ===")
 119     iotests.log("")
 120
 121     vm.launch()
 122     blockdev_create(vm, { 'driver': imgfmt,
 123                           'file': "this doesn't exist",
 124                           'size': size })
 125     vm.shutdown()
 126
 127     #
 128     # Zero size
 129     #
 130     iotests.log("=== Zero size ===")
 131     iotests.log("")
 132
 133     vm.add_blockdev('driver=file,filename=%s,node-name=node0' % (disk_path))
 134     vm.launch()
 135     blockdev_create(vm, { 'driver': imgfmt,
 136                           'file': 'node0',
 137                           'size': 0 })
 138     vm.shutdown()
 139
 140     iotests.img_info_log(disk_path)
 141
 142     #
 143     # Maximum size
 144     #
 145     iotests.log("=== Maximum size ===")
 146     iotests.log("")
 147
 148     vm.launch()
 149     blockdev_create(vm, { 'driver': imgfmt,
 150                           'file': 'node0',
 151                           'size': 562949819203584 })
 152     vm.shutdown()
 153
 154     iotests.img_info_log(disk_path)
 155
 156     #
 157     # Invalid sizes
 158     #
 159
 160     # TODO Negative image sizes aren't handled correctly, but this is a problem
 161     # with QAPI's implementation of the 'size' type and affects other commands
 162     # as well. Once this is fixed, we may want to add a test case here.
 163
 164     # 1. 2^64 - 512
 165     # 2. 2^63 = 8 EB (qemu-img enforces image sizes less than this)
 166     # 3. 0x1fffff8000001 (one byte more than maximum image size for VDI)
 167
 168     iotests.log("=== Invalid sizes ===")
 169     iotests.log("")
 170
 171     vm.launch()
 172     for size in [ 18446744073709551104, 9223372036854775808, 562949819203585 ]:
 173         blockdev_create(vm, { 'driver': imgfmt,
 174                               'file': 'node0',
 175                               'size': size })
 176     vm.shutdown()