LXR qemu/tests/qemu-iotests/266

   1#!/usr/bin/env python3
   2# group: rw quick
   3#
   4# Test VPC and file image creation
   5#
   6# Copyright (C) 2019 Red Hat, Inc.
   7#
   8# This program is free software; you can redistribute it and/or modify
   9# it under the terms of the GNU General Public License as published by
  10# the Free Software Foundation; either version 2 of the License, or
  11# (at your option) any later version.
  12#
  13# This program is distributed in the hope that it will be useful,
  14# but WITHOUT ANY WARRANTY; without even the implied warranty of
  15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16# GNU General Public License for more details.
  17#
  18# You should have received a copy of the GNU General Public License
  19# along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20#
  21
  22import iotests
  23from iotests import imgfmt
  24
  25
  26# Successful image creation (defaults)
  27def implicit_defaults(vm, file_path):
  28    iotests.log("=== Successful image creation (defaults) ===")
  29    iotests.log("")
  30
  31    # 8 heads, 964 cyls/head, 17 secs/cyl
  32    # (Close to 64 MB)
  33    size = 8 * 964 * 17 * 512
  34
  35    vm.blockdev_create({ 'driver': imgfmt,
  36                         'file': 'protocol-node',
  37                         'size': size })
  38
  39
  40# Successful image creation (explicit defaults)
  41def explicit_defaults(vm, file_path):
  42    iotests.log("=== Successful image creation (explicit defaults) ===")
  43    iotests.log("")
  44
  45    # 16 heads, 964 cyls/head, 17 secs/cyl
  46    # (Close to 128 MB)
  47    size = 16 * 964 * 17 * 512
  48
  49    vm.blockdev_create({ 'driver': imgfmt,
  50                         'file': 'protocol-node',
  51                         'size': size,
  52                         'subformat': 'dynamic',
  53                         'force-size': False })
  54
  55
  56# Successful image creation (non-default options)
  57def non_defaults(vm, file_path):
  58    iotests.log("=== Successful image creation (non-default options) ===")
  59    iotests.log("")
  60
  61    # Not representable in CHS (fine with force-size=True)
  62    size = 1048576
  63
  64    vm.blockdev_create({ 'driver': imgfmt,
  65                         'file': 'protocol-node',
  66                         'size': size,
  67                         'subformat': 'fixed',
  68                         'force-size': True })
  69
  70
  71# Size not representable in CHS with force-size=False
  72def non_chs_size_without_force(vm, file_path):
  73    iotests.log("=== Size not representable in CHS ===")
  74    iotests.log("")
  75
  76    # Not representable in CHS (will not work with force-size=False)
  77    size = 1048576
  78
  79    vm.blockdev_create({ 'driver': imgfmt,
  80                         'file': 'protocol-node',
  81                         'size': size,
  82                         'force-size': False })
  83
  84
  85# Zero size
  86def zero_size(vm, file_path):
  87    iotests.log("=== Zero size===")
  88    iotests.log("")
  89
  90    vm.blockdev_create({ 'driver': imgfmt,
  91                         'file': 'protocol-node',
  92                         'size': 0 })
  93
  94
  95# Maximum CHS size
  96def maximum_chs_size(vm, file_path):
  97    iotests.log("=== Maximum CHS size===")
  98    iotests.log("")
  99
 100    vm.blockdev_create({ 'driver': imgfmt,
 101                         'file': 'protocol-node',
 102                         'size': 16 * 65535 * 255 * 512 })
 103
 104
 105# Actual maximum size
 106def maximum_size(vm, file_path):
 107    iotests.log("=== Actual maximum size===")
 108    iotests.log("")
 109
 110    vm.blockdev_create({ 'driver': imgfmt,
 111                         'file': 'protocol-node',
 112                         'size': 0xff000000 * 512,
 113                         'force-size': True })
 114
 115
 116def main():
 117    for test_func in [implicit_defaults, explicit_defaults, non_defaults,
 118                      non_chs_size_without_force, zero_size, maximum_chs_size,
 119                      maximum_size]:
 120
 121        with iotests.FilePath('t.vpc') as file_path, \
 122             iotests.VM() as vm:
 123
 124            vm.launch()
 125
 126            iotests.log('--- Creating empty file ---')
 127            vm.blockdev_create({ 'driver': 'file',
 128                                 'filename': file_path,
 129                                 'size': 0 })
 130
 131            vm.qmp_log('blockdev-add', driver='file', filename=file_path,
 132                       node_name='protocol-node',
 133                       filters=[iotests.filter_qmp_testfiles])
 134            iotests.log('')
 135
 136            print_info = test_func(vm, file_path)
 137            iotests.log('')
 138
 139            vm.shutdown()
 140            iotests.img_info_log(file_path)
 141
 142
 143iotests.script_main(main,
 144                    supported_fmts=['vpc'],
 145                    supported_protocols=['file'])
 146