projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 903cb1bf | 1 | #!/usr/bin/env python3 |
| 9dd003a9 | 2 | # group: rw |
| bf3e50f6 | 3 | # |
| e60edf69 | 4 | # Test cases for the QMP 'blockdev-reopen' command |
| bf3e50f6 AG |
5 | # |
| 6 | # Copyright (C) 2018-2019 Igalia, S.L. | |
| 7 | # Author: Alberto Garcia <berto@igalia.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 | ||
| 6dede6a4 JS |
23 | import copy |
| 24 | import json | |
| bf3e50f6 AG |
25 | import os |
| 26 | import re | |
| 6dede6a4 JS |
27 | from subprocess import CalledProcessError |
| 28 | ||
| bf3e50f6 | 29 | import iotests |
| bf3e50f6 AG |
30 | from iotests import qemu_img, qemu_io |
| 31 | ||
| 32 | hd_path = [ | |
| 33 | os.path.join(iotests.test_dir, 'hd0.img'), | |
| 34 | os.path.join(iotests.test_dir, 'hd1.img'), | |
| 35 | os.path.join(iotests.test_dir, 'hd2.img') | |
| 36 | ] | |
| 37 | ||
| 38 | def hd_opts(idx): | |
| 39 | return {'driver': iotests.imgfmt, | |
| 40 | 'node-name': 'hd%d' % idx, | |
| 41 | 'file': {'driver': 'file', | |
| 42 | 'node-name': 'hd%d-file' % idx, | |
| 43 | 'filename': hd_path[idx] } } | |
| 44 | ||
| 45 | class TestBlockdevReopen(iotests.QMPTestCase): | |
| 46 | total_io_cmds = 0 | |
| 47 | ||
| 48 | def setUp(self): | |
| 49 | qemu_img('create', '-f', iotests.imgfmt, hd_path[0], '3M') | |
| b66ff2c2 EB |
50 | qemu_img('create', '-f', iotests.imgfmt, '-b', hd_path[0], |
| 51 | '-F', iotests.imgfmt, hd_path[1]) | |
| bf3e50f6 AG |
52 | qemu_img('create', '-f', iotests.imgfmt, hd_path[2], '3M') |
| 53 | qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xa0 0 1M', hd_path[0]) | |
| 54 | qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xa1 1M 1M', hd_path[1]) | |
| 55 | qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xa2 2M 1M', hd_path[2]) | |
| 56 | self.vm = iotests.VM() | |
| 57 | self.vm.launch() | |
| 58 | ||
| 59 | def tearDown(self): | |
| 60 | self.vm.shutdown() | |
| 61 | self.check_qemu_io_errors() | |
| 62 | os.remove(hd_path[0]) | |
| 63 | os.remove(hd_path[1]) | |
| 64 | os.remove(hd_path[2]) | |
| 65 | ||
| 66 | # The output of qemu-io is not returned by vm.hmp_qemu_io() but | |
| 67 | # it's stored in the log and can only be read when the VM has been | |
| 68 | # shut down. This function runs qemu-io and keeps track of the | |
| 69 | # number of times it's been called. | |
| 70 | def run_qemu_io(self, img, cmd): | |
| 71 | result = self.vm.hmp_qemu_io(img, cmd) | |
| 72 | self.assert_qmp(result, 'return', '') | |
| 73 | self.total_io_cmds += 1 | |
| 74 | ||
| 75 | # Once the VM is shut down we can parse the log and see if qemu-io | |
| 76 | # ran without errors. | |
| 77 | def check_qemu_io_errors(self): | |
| 78 | self.assertFalse(self.vm.is_running()) | |
| 79 | found = 0 | |
| 80 | log = self.vm.get_log() | |
| 81 | for line in log.split("\n"): | |
| 82 | if line.startswith("Pattern verification failed"): | |
| 83 | raise Exception("%s (command #%d)" % (line, found)) | |
| 4c5393f1 | 84 | if re.match("(read|wrote) .*/.* bytes at offset", line): |
| bf3e50f6 AG |
85 | found += 1 |
| 86 | self.assertEqual(found, self.total_io_cmds, | |
| 87 | "Expected output of %d qemu-io commands, found %d" % | |
| 88 | (found, self.total_io_cmds)) | |
| 89 | ||
| e60edf69 | 90 | # Run blockdev-reopen on a list of block devices |
| 3908b7a8 | 91 | def reopenMultiple(self, opts, errmsg = None): |
| e60edf69 | 92 | result = self.vm.qmp('blockdev-reopen', conv_keys=False, options=opts) |
| 3908b7a8 AG |
93 | if errmsg: |
| 94 | self.assert_qmp(result, 'error/class', 'GenericError') | |
| 95 | self.assert_qmp(result, 'error/desc', errmsg) | |
| 96 | else: | |
| 97 | self.assert_qmp(result, 'return', {}) | |
| 98 | ||
| e60edf69 | 99 | # Run blockdev-reopen on a single block device (specified by |
| 3908b7a8 AG |
100 | # 'opts') but applying 'newopts' on top of it. The original 'opts' |
| 101 | # dict is unmodified | |
| bf3e50f6 AG |
102 | def reopen(self, opts, newopts = {}, errmsg = None): |
| 103 | opts = copy.deepcopy(opts) | |
| 104 | ||
| 105 | # Apply the changes from 'newopts' on top of 'opts' | |
| 106 | for key in newopts: | |
| 107 | value = newopts[key] | |
| 108 | # If key has the form "foo.bar" then we need to do | |
| 109 | # opts["foo"]["bar"] = value, not opts["foo.bar"] = value | |
| 110 | subdict = opts | |
| 111 | while key.find('.') != -1: | |
| 112 | [prefix, key] = key.split('.', 1) | |
| 113 | subdict = opts[prefix] | |
| 114 | subdict[key] = value | |
| 115 | ||
| 3908b7a8 | 116 | self.reopenMultiple([ opts ], errmsg) |
| bf3e50f6 AG |
117 | |
| 118 | ||
| 119 | # Run query-named-block-nodes and return the specified entry | |
| 120 | def get_node(self, node_name): | |
| 121 | result = self.vm.qmp('query-named-block-nodes') | |
| 122 | for node in result['return']: | |
| 123 | if node['node-name'] == node_name: | |
| 124 | return node | |
| 125 | return None | |
| 126 | ||
| 127 | # Run 'query-named-block-nodes' and compare its output with the | |
| 128 | # value passed by the user in 'graph' | |
| 129 | def check_node_graph(self, graph): | |
| 130 | result = self.vm.qmp('query-named-block-nodes') | |
| 131 | self.assertEqual(json.dumps(graph, sort_keys=True), | |
| 132 | json.dumps(result, sort_keys=True)) | |
| 133 | ||
| 134 | # This test opens one single disk image (without backing files) | |
| 135 | # and tries to reopen it with illegal / incorrect parameters. | |
| 136 | def test_incorrect_parameters_single_file(self): | |
| 137 | # Open 'hd0' only (no backing files) | |
| 138 | opts = hd_opts(0) | |
| 139 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 140 | self.assert_qmp(result, 'return', {}) | |
| 141 | original_graph = self.vm.qmp('query-named-block-nodes') | |
| 142 | ||
| 143 | # We can reopen the image passing the same options | |
| 144 | self.reopen(opts) | |
| 145 | ||
| 146 | # We can also reopen passing a child reference in 'file' | |
| 147 | self.reopen(opts, {'file': 'hd0-file'}) | |
| 148 | ||
| 149 | # We cannot change any of these | |
| ef2e38a1 CK |
150 | self.reopen(opts, {'node-name': 'not-found'}, "Failed to find node with node-name='not-found'") |
| 151 | self.reopen(opts, {'node-name': ''}, "Failed to find node with node-name=''") | |
| 3908b7a8 | 152 | self.reopen(opts, {'node-name': None}, "Invalid parameter type for 'options[0].node-name', expected: string") |
| bf3e50f6 | 153 | self.reopen(opts, {'driver': 'raw'}, "Cannot change the option 'driver'") |
| ea29331b | 154 | self.reopen(opts, {'driver': ''}, "Parameter 'driver' does not accept value ''") |
| 3908b7a8 | 155 | self.reopen(opts, {'driver': None}, "Invalid parameter type for 'options[0].driver', expected: string") |
| ecd30d2d AG |
156 | self.reopen(opts, {'file': 'not-found'}, "Cannot find device='' nor node-name='not-found'") |
| 157 | self.reopen(opts, {'file': ''}, "Cannot find device='' nor node-name=''") | |
| bf3e50f6 AG |
158 | self.reopen(opts, {'file': None}, "Invalid parameter type for 'file', expected: BlockdevRef") |
| 159 | self.reopen(opts, {'file.node-name': 'newname'}, "Cannot change the option 'node-name'") | |
| 160 | self.reopen(opts, {'file.driver': 'host_device'}, "Cannot change the option 'driver'") | |
| 161 | self.reopen(opts, {'file.filename': hd_path[1]}, "Cannot change the option 'filename'") | |
| 162 | self.reopen(opts, {'file.aio': 'native'}, "Cannot change the option 'aio'") | |
| 163 | self.reopen(opts, {'file.locking': 'off'}, "Cannot change the option 'locking'") | |
| 3908b7a8 | 164 | self.reopen(opts, {'file.filename': None}, "Invalid parameter type for 'options[0].file.filename', expected: string") |
| bf3e50f6 | 165 | |
| e60edf69 | 166 | # node-name is optional in BlockdevOptions, but blockdev-reopen needs it |
| bf3e50f6 | 167 | del opts['node-name'] |
| ef2e38a1 | 168 | self.reopen(opts, {}, "node-name not specified") |
| bf3e50f6 AG |
169 | |
| 170 | # Check that nothing has changed | |
| 171 | self.check_node_graph(original_graph) | |
| 172 | ||
| 173 | # Remove the node | |
| 174 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd0') | |
| 175 | self.assert_qmp(result, 'return', {}) | |
| 176 | ||
| 177 | # This test opens an image with a backing file and tries to reopen | |
| 178 | # it with illegal / incorrect parameters. | |
| 179 | def test_incorrect_parameters_backing_file(self): | |
| 180 | # Open hd1 omitting the backing options (hd0 will be opened | |
| 181 | # with the default options) | |
| 182 | opts = hd_opts(1) | |
| 183 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 184 | self.assert_qmp(result, 'return', {}) | |
| 185 | original_graph = self.vm.qmp('query-named-block-nodes') | |
| 186 | ||
| 187 | # We can't reopen the image passing the same options, 'backing' is mandatory | |
| 188 | self.reopen(opts, {}, "backing is missing for 'hd1'") | |
| 189 | ||
| 190 | # Everything works if we pass 'backing' using the existing node name | |
| 191 | for node in original_graph['return']: | |
| 192 | if node['drv'] == iotests.imgfmt and node['file'] == hd_path[0]: | |
| 193 | backing_node_name = node['node-name'] | |
| 194 | self.reopen(opts, {'backing': backing_node_name}) | |
| 195 | ||
| 196 | # We can't use a non-existing or empty (non-NULL) node as the backing image | |
| 785ec4b1 CK |
197 | self.reopen(opts, {'backing': 'not-found'}, "Cannot find device=\'\' nor node-name=\'not-found\'") |
| 198 | self.reopen(opts, {'backing': ''}, "Cannot find device=\'\' nor node-name=\'\'") | |
| bf3e50f6 AG |
199 | |
| 200 | # We can reopen the image just fine if we specify the backing options | |
| 201 | opts['backing'] = {'driver': iotests.imgfmt, | |
| 202 | 'file': {'driver': 'file', | |
| 203 | 'filename': hd_path[0]}} | |
| 204 | self.reopen(opts) | |
| 205 | ||
| 206 | # We cannot change any of these options | |
| 207 | self.reopen(opts, {'backing.node-name': 'newname'}, "Cannot change the option 'node-name'") | |
| 208 | self.reopen(opts, {'backing.driver': 'raw'}, "Cannot change the option 'driver'") | |
| 209 | self.reopen(opts, {'backing.file.node-name': 'newname'}, "Cannot change the option 'node-name'") | |
| 210 | self.reopen(opts, {'backing.file.driver': 'host_device'}, "Cannot change the option 'driver'") | |
| 211 | ||
| 212 | # Check that nothing has changed since the beginning | |
| 213 | self.check_node_graph(original_graph) | |
| 214 | ||
| 215 | # Remove the node | |
| 216 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd1') | |
| 217 | self.assert_qmp(result, 'return', {}) | |
| 218 | ||
| 219 | # Reopen an image several times changing some of its options | |
| 220 | def test_reopen(self): | |
| 6dede6a4 JS |
221 | try: |
| 222 | qemu_io('-f', 'raw', '-t', 'none', '-c', 'quit', hd_path[0]) | |
| 23e1d054 | 223 | supports_direct = True |
| 6dede6a4 JS |
224 | except CalledProcessError as exc: |
| 225 | if 'O_DIRECT' in exc.stdout: | |
| 226 | supports_direct = False | |
| 227 | else: | |
| 228 | raise | |
| 23e1d054 | 229 | |
| bf3e50f6 AG |
230 | # Open the hd1 image passing all backing options |
| 231 | opts = hd_opts(1) | |
| 232 | opts['backing'] = hd_opts(0) | |
| 233 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 234 | self.assert_qmp(result, 'return', {}) | |
| 235 | original_graph = self.vm.qmp('query-named-block-nodes') | |
| 236 | ||
| 237 | # We can reopen the image passing the same options | |
| 238 | self.reopen(opts) | |
| 239 | ||
| 240 | # Reopen in read-only mode | |
| 241 | self.assert_qmp(self.get_node('hd1'), 'ro', False) | |
| 242 | ||
| 243 | self.reopen(opts, {'read-only': True}) | |
| 244 | self.assert_qmp(self.get_node('hd1'), 'ro', True) | |
| 245 | self.reopen(opts) | |
| 246 | self.assert_qmp(self.get_node('hd1'), 'ro', False) | |
| 247 | ||
| 248 | # Change the cache options | |
| 249 | self.assert_qmp(self.get_node('hd1'), 'cache/writeback', True) | |
| 250 | self.assert_qmp(self.get_node('hd1'), 'cache/direct', False) | |
| 251 | self.assert_qmp(self.get_node('hd1'), 'cache/no-flush', False) | |
| 23e1d054 | 252 | self.reopen(opts, {'cache': { 'direct': supports_direct, 'no-flush': True }}) |
| bf3e50f6 | 253 | self.assert_qmp(self.get_node('hd1'), 'cache/writeback', True) |
| 23e1d054 | 254 | self.assert_qmp(self.get_node('hd1'), 'cache/direct', supports_direct) |
| bf3e50f6 AG |
255 | self.assert_qmp(self.get_node('hd1'), 'cache/no-flush', True) |
| 256 | ||
| 257 | # Reopen again with the original options | |
| 258 | self.reopen(opts) | |
| 259 | self.assert_qmp(self.get_node('hd1'), 'cache/writeback', True) | |
| 260 | self.assert_qmp(self.get_node('hd1'), 'cache/direct', False) | |
| 261 | self.assert_qmp(self.get_node('hd1'), 'cache/no-flush', False) | |
| 262 | ||
| 263 | # Change 'detect-zeroes' and 'discard' | |
| 264 | self.assert_qmp(self.get_node('hd1'), 'detect_zeroes', 'off') | |
| 265 | self.reopen(opts, {'detect-zeroes': 'on'}) | |
| 266 | self.assert_qmp(self.get_node('hd1'), 'detect_zeroes', 'on') | |
| 267 | self.reopen(opts, {'detect-zeroes': 'unmap'}, | |
| 268 | "setting detect-zeroes to unmap is not allowed " + | |
| 269 | "without setting discard operation to unmap") | |
| 270 | self.assert_qmp(self.get_node('hd1'), 'detect_zeroes', 'on') | |
| 271 | self.reopen(opts, {'detect-zeroes': 'unmap', 'discard': 'unmap'}) | |
| 272 | self.assert_qmp(self.get_node('hd1'), 'detect_zeroes', 'unmap') | |
| 273 | self.reopen(opts) | |
| 274 | self.assert_qmp(self.get_node('hd1'), 'detect_zeroes', 'off') | |
| 275 | ||
| 276 | # Changing 'force-share' is currently not supported | |
| 277 | self.reopen(opts, {'force-share': True}, "Cannot change the option 'force-share'") | |
| 278 | ||
| 279 | # Change some qcow2-specific options | |
| 280 | # No way to test for success other than checking the return message | |
| 281 | if iotests.imgfmt == 'qcow2': | |
| 282 | self.reopen(opts, {'l2-cache-entry-size': 128 * 1024}, | |
| 283 | "L2 cache entry size must be a power of two "+ | |
| 284 | "between 512 and the cluster size (65536)") | |
| 285 | self.reopen(opts, {'l2-cache-size': 1024 * 1024, | |
| 286 | 'cache-size': 512 * 1024}, | |
| 287 | "l2-cache-size may not exceed cache-size") | |
| 288 | self.reopen(opts, {'l2-cache-size': 4 * 1024 * 1024, | |
| 289 | 'refcount-cache-size': 4 * 1024 * 1024, | |
| 290 | 'l2-cache-entry-size': 32 * 1024}) | |
| 291 | self.reopen(opts, {'pass-discard-request': True}) | |
| 292 | ||
| 293 | # Check that nothing has changed since the beginning | |
| 294 | # (from the parameters that we can check) | |
| 295 | self.check_node_graph(original_graph) | |
| 296 | ||
| 297 | # Check that the node names (other than the top-level one) are optional | |
| 298 | del opts['file']['node-name'] | |
| 299 | del opts['backing']['node-name'] | |
| 300 | del opts['backing']['file']['node-name'] | |
| 301 | self.reopen(opts) | |
| 302 | self.check_node_graph(original_graph) | |
| 303 | ||
| 304 | # Reopen setting backing = null, this removes the backing image from the chain | |
| 305 | self.reopen(opts, {'backing': None}) | |
| 306 | self.assert_qmp_absent(self.get_node('hd1'), 'image/backing-image') | |
| 307 | ||
| 308 | # Open the 'hd0' image | |
| 309 | result = self.vm.qmp('blockdev-add', conv_keys = False, **hd_opts(0)) | |
| 310 | self.assert_qmp(result, 'return', {}) | |
| 311 | ||
| 312 | # Reopen the hd1 image setting 'hd0' as its backing image | |
| 313 | self.reopen(opts, {'backing': 'hd0'}) | |
| 314 | self.assert_qmp(self.get_node('hd1'), 'image/backing-image/filename', hd_path[0]) | |
| 315 | ||
| 316 | # Check that nothing has changed since the beginning | |
| 317 | self.reopen(hd_opts(0), {'read-only': True}) | |
| 318 | self.check_node_graph(original_graph) | |
| 319 | ||
| 320 | # The backing file (hd0) is now a reference, we cannot change backing.* anymore | |
| 321 | self.reopen(opts, {}, "Cannot change the option 'backing.driver'") | |
| 322 | ||
| 323 | # We can't remove 'hd0' while it's a backing image of 'hd1' | |
| 324 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd0') | |
| 325 | self.assert_qmp(result, 'error/class', 'GenericError') | |
| 326 | self.assert_qmp(result, 'error/desc', "Node 'hd0' is busy: node is used as backing hd of 'hd1'") | |
| 327 | ||
| 328 | # But we can remove both nodes if done in the proper order | |
| 329 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd1') | |
| 330 | self.assert_qmp(result, 'return', {}) | |
| 331 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd0') | |
| 332 | self.assert_qmp(result, 'return', {}) | |
| 333 | ||
| 334 | # Reopen a raw image and see the effect of changing the 'offset' option | |
| 335 | def test_reopen_raw(self): | |
| 336 | opts = {'driver': 'raw', 'node-name': 'hd0', | |
| 337 | 'file': { 'driver': 'file', | |
| 338 | 'filename': hd_path[0], | |
| 339 | 'node-name': 'hd0-file' } } | |
| 340 | ||
| 341 | # First we create a 2MB raw file, and fill each half with a | |
| 342 | # different value | |
| 343 | qemu_img('create', '-f', 'raw', hd_path[0], '2M') | |
| 344 | qemu_io('-f', 'raw', '-c', 'write -P 0xa0 0 1M', hd_path[0]) | |
| 345 | qemu_io('-f', 'raw', '-c', 'write -P 0xa1 1M 1M', hd_path[0]) | |
| 346 | ||
| 347 | # Open the raw file with QEMU | |
| 348 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 349 | self.assert_qmp(result, 'return', {}) | |
| 350 | ||
| 351 | # Read 1MB from offset 0 | |
| 352 | self.run_qemu_io("hd0", "read -P 0xa0 0 1M") | |
| 353 | ||
| 354 | # Reopen the image with a 1MB offset. | |
| 355 | # Now the results are different | |
| 356 | self.reopen(opts, {'offset': 1024*1024}) | |
| 357 | self.run_qemu_io("hd0", "read -P 0xa1 0 1M") | |
| 358 | ||
| 359 | # Reopen again with the original options. | |
| 360 | # We get the original results again | |
| 361 | self.reopen(opts) | |
| 362 | self.run_qemu_io("hd0", "read -P 0xa0 0 1M") | |
| 363 | ||
| 364 | # Remove the block device | |
| 365 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd0') | |
| 366 | self.assert_qmp(result, 'return', {}) | |
| 367 | ||
| 368 | # Omitting an option should reset it to the default value, but if | |
| 369 | # an option cannot be changed it shouldn't be possible to reset it | |
| 370 | # to its default value either | |
| 371 | def test_reset_default_values(self): | |
| 372 | opts = {'driver': 'qcow2', 'node-name': 'hd0', | |
| 373 | 'file': { 'driver': 'file', | |
| 374 | 'filename': hd_path[0], | |
| 375 | 'x-check-cache-dropped': True, # This one can be changed | |
| 376 | 'locking': 'off', # This one can NOT be changed | |
| 377 | 'node-name': 'hd0-file' } } | |
| 378 | ||
| 379 | # Open the file with QEMU | |
| 380 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 381 | self.assert_qmp(result, 'return', {}) | |
| 382 | ||
| 383 | # file.x-check-cache-dropped can be changed... | |
| 384 | self.reopen(opts, { 'file.x-check-cache-dropped': False }) | |
| 385 | # ...and dropped completely (resetting to the default value) | |
| 386 | del opts['file']['x-check-cache-dropped'] | |
| 387 | self.reopen(opts) | |
| 388 | ||
| 389 | # file.locking cannot be changed nor reset to the default value | |
| 390 | self.reopen(opts, { 'file.locking': 'on' }, "Cannot change the option 'locking'") | |
| 391 | del opts['file']['locking'] | |
| 392 | self.reopen(opts, {}, "Option 'locking' cannot be reset to its default value") | |
| 393 | # But we can reopen it if we maintain its previous value | |
| 394 | self.reopen(opts, { 'file.locking': 'off' }) | |
| 395 | ||
| 396 | # Remove the block device | |
| 397 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd0') | |
| 398 | self.assert_qmp(result, 'return', {}) | |
| 399 | ||
| 400 | # This test modifies the node graph a few times by changing the | |
| 401 | # 'backing' option on reopen and verifies that the guest data that | |
| 402 | # is read afterwards is consistent with the graph changes. | |
| 403 | def test_io_with_graph_changes(self): | |
| 404 | opts = [] | |
| 405 | ||
| 406 | # Open hd0, hd1 and hd2 without any backing image | |
| 407 | for i in range(3): | |
| 408 | opts.append(hd_opts(i)) | |
| 409 | opts[i]['backing'] = None | |
| 410 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts[i]) | |
| 411 | self.assert_qmp(result, 'return', {}) | |
| 412 | ||
| 413 | # hd0 | |
| 414 | self.run_qemu_io("hd0", "read -P 0xa0 0 1M") | |
| 415 | self.run_qemu_io("hd0", "read -P 0 1M 1M") | |
| 416 | self.run_qemu_io("hd0", "read -P 0 2M 1M") | |
| 417 | ||
| 418 | # hd1 <- hd0 | |
| 419 | self.reopen(opts[0], {'backing': 'hd1'}) | |
| 420 | ||
| 421 | self.run_qemu_io("hd0", "read -P 0xa0 0 1M") | |
| 422 | self.run_qemu_io("hd0", "read -P 0xa1 1M 1M") | |
| 423 | self.run_qemu_io("hd0", "read -P 0 2M 1M") | |
| 424 | ||
| 425 | # hd1 <- hd0 , hd1 <- hd2 | |
| 426 | self.reopen(opts[2], {'backing': 'hd1'}) | |
| 427 | ||
| 428 | self.run_qemu_io("hd2", "read -P 0 0 1M") | |
| 429 | self.run_qemu_io("hd2", "read -P 0xa1 1M 1M") | |
| 430 | self.run_qemu_io("hd2", "read -P 0xa2 2M 1M") | |
| 431 | ||
| 432 | # hd1 <- hd2 <- hd0 | |
| 433 | self.reopen(opts[0], {'backing': 'hd2'}) | |
| 434 | ||
| 435 | self.run_qemu_io("hd0", "read -P 0xa0 0 1M") | |
| 436 | self.run_qemu_io("hd0", "read -P 0xa1 1M 1M") | |
| 437 | self.run_qemu_io("hd0", "read -P 0xa2 2M 1M") | |
| 438 | ||
| 439 | # hd2 <- hd0 | |
| 440 | self.reopen(opts[2], {'backing': None}) | |
| 441 | ||
| 442 | self.run_qemu_io("hd0", "read -P 0xa0 0 1M") | |
| 443 | self.run_qemu_io("hd0", "read -P 0 1M 1M") | |
| 444 | self.run_qemu_io("hd0", "read -P 0xa2 2M 1M") | |
| 445 | ||
| 446 | # hd2 <- hd1 <- hd0 | |
| 447 | self.reopen(opts[1], {'backing': 'hd2'}) | |
| 448 | self.reopen(opts[0], {'backing': 'hd1'}) | |
| 449 | ||
| 450 | self.run_qemu_io("hd0", "read -P 0xa0 0 1M") | |
| 451 | self.run_qemu_io("hd0", "read -P 0xa1 1M 1M") | |
| 452 | self.run_qemu_io("hd0", "read -P 0xa2 2M 1M") | |
| 453 | ||
| 454 | # Illegal operation: hd2 is a child of hd1 | |
| 455 | self.reopen(opts[2], {'backing': 'hd1'}, | |
| ecd30d2d | 456 | "Making 'hd1' a backing child of 'hd2' would create a cycle") |
| bf3e50f6 AG |
457 | |
| 458 | # hd2 <- hd0, hd2 <- hd1 | |
| 459 | self.reopen(opts[0], {'backing': 'hd2'}) | |
| 460 | ||
| 461 | self.run_qemu_io("hd1", "read -P 0 0 1M") | |
| 462 | self.run_qemu_io("hd1", "read -P 0xa1 1M 1M") | |
| 463 | self.run_qemu_io("hd1", "read -P 0xa2 2M 1M") | |
| 464 | ||
| 465 | # More illegal operations | |
| 466 | self.reopen(opts[2], {'backing': 'hd1'}, | |
| ecd30d2d AG |
467 | "Making 'hd1' a backing child of 'hd2' would create a cycle") |
| 468 | self.reopen(opts[2], {'file': 'hd0-file'}, | |
| 469 | "Permission conflict on node 'hd0-file': permissions 'write, resize' are both required by node 'hd0' (uses node 'hd0-file' as 'file' child) and unshared by node 'hd2' (uses node 'hd0-file' as 'file' child).") | |
| bf3e50f6 AG |
470 | |
| 471 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd2') | |
| 472 | self.assert_qmp(result, 'error/class', 'GenericError') | |
| 473 | self.assert_qmp(result, 'error/desc', "Node 'hd2' is busy: node is used as backing hd of 'hd0'") | |
| 474 | ||
| 475 | # hd1 doesn't have a backing file now | |
| 476 | self.reopen(opts[1], {'backing': None}) | |
| 477 | ||
| 478 | self.run_qemu_io("hd1", "read -P 0 0 1M") | |
| 479 | self.run_qemu_io("hd1", "read -P 0xa1 1M 1M") | |
| 480 | self.run_qemu_io("hd1", "read -P 0 2M 1M") | |
| 481 | ||
| 482 | # We can't remove the 'backing' option if the image has a | |
| 483 | # default backing file | |
| 484 | del opts[1]['backing'] | |
| 485 | self.reopen(opts[1], {}, "backing is missing for 'hd1'") | |
| 486 | ||
| 487 | self.run_qemu_io("hd1", "read -P 0 0 1M") | |
| 488 | self.run_qemu_io("hd1", "read -P 0xa1 1M 1M") | |
| 489 | self.run_qemu_io("hd1", "read -P 0 2M 1M") | |
| 490 | ||
| 491 | # This test verifies that we can't change the children of a block | |
| 492 | # device during a reopen operation in a way that would create | |
| 493 | # cycles in the node graph | |
| 9442bebe | 494 | @iotests.skip_if_unsupported(['blkverify']) |
| bf3e50f6 AG |
495 | def test_graph_cycles(self): |
| 496 | opts = [] | |
| 497 | ||
| 498 | # Open all three images without backing file | |
| 499 | for i in range(3): | |
| 500 | opts.append(hd_opts(i)) | |
| 501 | opts[i]['backing'] = None | |
| 502 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts[i]) | |
| 503 | self.assert_qmp(result, 'return', {}) | |
| 504 | ||
| 505 | # hd1 <- hd0, hd1 <- hd2 | |
| 506 | self.reopen(opts[0], {'backing': 'hd1'}) | |
| 507 | self.reopen(opts[2], {'backing': 'hd1'}) | |
| 508 | ||
| 509 | # Illegal: hd2 is backed by hd1 | |
| 510 | self.reopen(opts[1], {'backing': 'hd2'}, | |
| ecd30d2d | 511 | "Making 'hd2' a backing child of 'hd1' would create a cycle") |
| bf3e50f6 AG |
512 | |
| 513 | # hd1 <- hd0 <- hd2 | |
| 514 | self.reopen(opts[2], {'backing': 'hd0'}) | |
| 515 | ||
| 516 | # Illegal: hd2 is backed by hd0, which is backed by hd1 | |
| 517 | self.reopen(opts[1], {'backing': 'hd2'}, | |
| ecd30d2d | 518 | "Making 'hd2' a backing child of 'hd1' would create a cycle") |
| bf3e50f6 AG |
519 | |
| 520 | # Illegal: hd1 cannot point to itself | |
| 521 | self.reopen(opts[1], {'backing': 'hd1'}, | |
| ecd30d2d | 522 | "Making 'hd1' a backing child of 'hd1' would create a cycle") |
| bf3e50f6 AG |
523 | |
| 524 | # Remove all backing files | |
| 525 | self.reopen(opts[0]) | |
| 526 | self.reopen(opts[2]) | |
| 527 | ||
| 528 | ########################################## | |
| 529 | # Add a blkverify node using hd0 and hd1 # | |
| 530 | ########################################## | |
| 531 | bvopts = {'driver': 'blkverify', | |
| 532 | 'node-name': 'bv', | |
| 533 | 'test': 'hd0', | |
| 534 | 'raw': 'hd1'} | |
| 535 | result = self.vm.qmp('blockdev-add', conv_keys = False, **bvopts) | |
| 536 | self.assert_qmp(result, 'return', {}) | |
| 537 | ||
| 538 | # blkverify doesn't currently allow reopening. TODO: implement this | |
| 539 | self.reopen(bvopts, {}, "Block format 'blkverify' used by node 'bv'" + | |
| 540 | " does not support reopening files") | |
| 541 | ||
| 542 | # Illegal: hd0 is a child of the blkverify node | |
| 543 | self.reopen(opts[0], {'backing': 'bv'}, | |
| ecd30d2d | 544 | "Making 'bv' a backing child of 'hd0' would create a cycle") |
| bf3e50f6 AG |
545 | |
| 546 | # Delete the blkverify node | |
| 547 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'bv') | |
| 548 | self.assert_qmp(result, 'return', {}) | |
| 549 | ||
| 4c5393f1 AG |
550 | # Replace the protocol layer ('file' parameter) of a disk image |
| 551 | def test_replace_file(self): | |
| 552 | # Create two small raw images and add them to a running VM | |
| 553 | qemu_img('create', '-f', 'raw', hd_path[0], '10k') | |
| 554 | qemu_img('create', '-f', 'raw', hd_path[1], '10k') | |
| 555 | ||
| 556 | hd0_opts = {'driver': 'file', 'node-name': 'hd0-file', 'filename': hd_path[0] } | |
| 557 | hd1_opts = {'driver': 'file', 'node-name': 'hd1-file', 'filename': hd_path[1] } | |
| 558 | ||
| 559 | result = self.vm.qmp('blockdev-add', conv_keys = False, **hd0_opts) | |
| 560 | self.assert_qmp(result, 'return', {}) | |
| 561 | result = self.vm.qmp('blockdev-add', conv_keys = False, **hd1_opts) | |
| 562 | self.assert_qmp(result, 'return', {}) | |
| 563 | ||
| 564 | # Add a raw format layer that uses hd0-file as its protocol layer | |
| 565 | opts = {'driver': 'raw', 'node-name': 'hd', 'file': 'hd0-file'} | |
| 566 | ||
| 567 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 568 | self.assert_qmp(result, 'return', {}) | |
| 569 | ||
| 570 | # Fill the image with data | |
| 571 | self.run_qemu_io("hd", "read -P 0 0 10k") | |
| 572 | self.run_qemu_io("hd", "write -P 0xa0 0 10k") | |
| 573 | ||
| 574 | # Replace hd0-file with hd1-file and fill it with (different) data | |
| 575 | self.reopen(opts, {'file': 'hd1-file'}) | |
| 576 | self.run_qemu_io("hd", "read -P 0 0 10k") | |
| 577 | self.run_qemu_io("hd", "write -P 0xa1 0 10k") | |
| 578 | ||
| 579 | # Use hd0-file again and check that it contains the expected data | |
| 580 | self.reopen(opts, {'file': 'hd0-file'}) | |
| 581 | self.run_qemu_io("hd", "read -P 0xa0 0 10k") | |
| 582 | ||
| 583 | # And finally do the same with hd1-file | |
| 584 | self.reopen(opts, {'file': 'hd1-file'}) | |
| 585 | self.run_qemu_io("hd", "read -P 0xa1 0 10k") | |
| 586 | ||
| 587 | # Insert (and remove) a throttle filter | |
| 588 | def test_insert_throttle_filter(self): | |
| 589 | # Add an image to the VM | |
| 590 | hd0_opts = hd_opts(0) | |
| 591 | result = self.vm.qmp('blockdev-add', conv_keys = False, **hd0_opts) | |
| 592 | self.assert_qmp(result, 'return', {}) | |
| 593 | ||
| 594 | # Create a throttle-group object | |
| 595 | opts = { 'qom-type': 'throttle-group', 'id': 'group0', | |
| 596 | 'limits': { 'iops-total': 1000 } } | |
| 597 | result = self.vm.qmp('object-add', conv_keys = False, **opts) | |
| 598 | self.assert_qmp(result, 'return', {}) | |
| 599 | ||
| 600 | # Add a throttle filter with the group that we just created. | |
| 601 | # The filter is not used by anyone yet | |
| 602 | opts = { 'driver': 'throttle', 'node-name': 'throttle0', | |
| 603 | 'throttle-group': 'group0', 'file': 'hd0-file' } | |
| 604 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 605 | self.assert_qmp(result, 'return', {}) | |
| 606 | ||
| 607 | # Insert the throttle filter between hd0 and hd0-file | |
| 608 | self.reopen(hd0_opts, {'file': 'throttle0'}) | |
| 609 | ||
| 610 | # Remove the throttle filter from hd0 | |
| 611 | self.reopen(hd0_opts, {'file': 'hd0-file'}) | |
| 612 | ||
| 613 | # Insert (and remove) a compress filter | |
| 78935fcd | 614 | @iotests.skip_if_unsupported(['compress']) |
| 4c5393f1 AG |
615 | def test_insert_compress_filter(self): |
| 616 | # Add an image to the VM: hd (raw) -> hd0 (qcow2) -> hd0-file (file) | |
| 617 | opts = {'driver': 'raw', 'node-name': 'hd', 'file': hd_opts(0)} | |
| 618 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 619 | self.assert_qmp(result, 'return', {}) | |
| 620 | ||
| 621 | # Add a 'compress' filter | |
| 622 | filter_opts = {'driver': 'compress', | |
| 623 | 'node-name': 'compress0', | |
| 624 | 'file': 'hd0'} | |
| 625 | result = self.vm.qmp('blockdev-add', conv_keys = False, **filter_opts) | |
| 626 | self.assert_qmp(result, 'return', {}) | |
| 627 | ||
| 628 | # Unmap the beginning of the image (we cannot write compressed | |
| 629 | # data to an allocated cluster) | |
| 630 | self.run_qemu_io("hd", "write -z -u 0 128k") | |
| 631 | ||
| 632 | # Write data to the first cluster | |
| 633 | self.run_qemu_io("hd", "write -P 0xa0 0 64k") | |
| 634 | ||
| 635 | # Insert the filter then write to the second cluster | |
| 636 | # hd -> compress0 -> hd0 -> hd0-file | |
| 637 | self.reopen(opts, {'file': 'compress0'}) | |
| 638 | self.run_qemu_io("hd", "write -P 0xa1 64k 64k") | |
| 639 | ||
| 640 | # Remove the filter then write to the third cluster | |
| 641 | # hd -> hd0 -> hd0-file | |
| 642 | self.reopen(opts, {'file': 'hd0'}) | |
| 643 | self.run_qemu_io("hd", "write -P 0xa2 128k 64k") | |
| 644 | ||
| 645 | # Verify the data that we just wrote | |
| 646 | self.run_qemu_io("hd", "read -P 0xa0 0 64k") | |
| 647 | self.run_qemu_io("hd", "read -P 0xa1 64k 64k") | |
| 648 | self.run_qemu_io("hd", "read -P 0xa2 128k 64k") | |
| 649 | ||
| 650 | self.vm.shutdown() | |
| 651 | ||
| 652 | # Check the first byte of the first three L2 entries and verify that | |
| 653 | # the second one is compressed (0x40) while the others are not (0x80) | |
| 78935fcd KW |
654 | iotests.qemu_io('-f', 'raw', '-c', 'read -P 0x80 0x40000 1', |
| 655 | '-c', 'read -P 0x40 0x40008 1', | |
| 656 | '-c', 'read -P 0x80 0x40010 1', hd_path[0]) | |
| 4c5393f1 | 657 | |
| 246ebc2d AG |
658 | # Swap the disk images of two active block devices |
| 659 | def test_swap_files(self): | |
| 660 | # Add hd0 and hd2 (none of them with backing files) | |
| 661 | opts0 = hd_opts(0) | |
| 662 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts0) | |
| 663 | self.assert_qmp(result, 'return', {}) | |
| 664 | ||
| 665 | opts2 = hd_opts(2) | |
| 666 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts2) | |
| 667 | self.assert_qmp(result, 'return', {}) | |
| 668 | ||
| 669 | # Write different data to both block devices | |
| 670 | self.run_qemu_io("hd0", "write -P 0xa0 0 1k") | |
| 671 | self.run_qemu_io("hd2", "write -P 0xa2 0 1k") | |
| 672 | ||
| 673 | # Check that the data reads correctly | |
| 674 | self.run_qemu_io("hd0", "read -P 0xa0 0 1k") | |
| 675 | self.run_qemu_io("hd2", "read -P 0xa2 0 1k") | |
| 676 | ||
| 677 | # It's not possible to make a block device use an image that | |
| 678 | # is already being used by the other device. | |
| 679 | self.reopen(opts0, {'file': 'hd2-file'}, | |
| 680 | "Permission conflict on node 'hd2-file': permissions " | |
| 681 | "'write, resize' are both required by node 'hd2' (uses " | |
| 682 | "node 'hd2-file' as 'file' child) and unshared by node " | |
| 683 | "'hd0' (uses node 'hd2-file' as 'file' child).") | |
| 684 | self.reopen(opts2, {'file': 'hd0-file'}, | |
| 685 | "Permission conflict on node 'hd0-file': permissions " | |
| 686 | "'write, resize' are both required by node 'hd0' (uses " | |
| 687 | "node 'hd0-file' as 'file' child) and unshared by node " | |
| 688 | "'hd2' (uses node 'hd0-file' as 'file' child).") | |
| 689 | ||
| 690 | # But we can swap the images if we reopen both devices at the | |
| 691 | # same time | |
| 692 | opts0['file'] = 'hd2-file' | |
| 693 | opts2['file'] = 'hd0-file' | |
| 694 | self.reopenMultiple([opts0, opts2]) | |
| 695 | self.run_qemu_io("hd0", "read -P 0xa2 0 1k") | |
| 696 | self.run_qemu_io("hd2", "read -P 0xa0 0 1k") | |
| 697 | ||
| 698 | # And we can of course come back to the original state | |
| 699 | opts0['file'] = 'hd0-file' | |
| 700 | opts2['file'] = 'hd2-file' | |
| 701 | self.reopenMultiple([opts0, opts2]) | |
| 702 | self.run_qemu_io("hd0", "read -P 0xa0 0 1k") | |
| 703 | self.run_qemu_io("hd2", "read -P 0xa2 0 1k") | |
| 704 | ||
| bf3e50f6 | 705 | # Misc reopen tests with different block drivers |
| 9442bebe | 706 | @iotests.skip_if_unsupported(['quorum', 'throttle']) |
| bf3e50f6 AG |
707 | def test_misc_drivers(self): |
| 708 | #################### | |
| 709 | ###### quorum ###### | |
| 710 | #################### | |
| 711 | for i in range(3): | |
| 712 | opts = hd_opts(i) | |
| 713 | # Open all three images without backing file | |
| 714 | opts['backing'] = None | |
| 715 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 716 | self.assert_qmp(result, 'return', {}) | |
| 717 | ||
| 718 | opts = {'driver': 'quorum', | |
| 719 | 'node-name': 'quorum0', | |
| 720 | 'children': ['hd0', 'hd1', 'hd2'], | |
| 721 | 'vote-threshold': 2} | |
| 722 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 723 | self.assert_qmp(result, 'return', {}) | |
| 724 | ||
| 725 | # Quorum doesn't currently allow reopening. TODO: implement this | |
| 726 | self.reopen(opts, {}, "Block format 'quorum' used by node 'quorum0'" + | |
| 727 | " does not support reopening files") | |
| 728 | ||
| 729 | # You can't make quorum0 a backing file of hd0: | |
| 730 | # hd0 is already a child of quorum0. | |
| 731 | self.reopen(hd_opts(0), {'backing': 'quorum0'}, | |
| ecd30d2d | 732 | "Making 'quorum0' a backing child of 'hd0' would create a cycle") |
| bf3e50f6 AG |
733 | |
| 734 | # Delete quorum0 | |
| 735 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'quorum0') | |
| 736 | self.assert_qmp(result, 'return', {}) | |
| 737 | ||
| 738 | # Delete hd0, hd1 and hd2 | |
| 739 | for i in range(3): | |
| 740 | result = self.vm.qmp('blockdev-del', conv_keys = True, | |
| 741 | node_name = 'hd%d' % i) | |
| 742 | self.assert_qmp(result, 'return', {}) | |
| 743 | ||
| 744 | ###################### | |
| 745 | ###### blkdebug ###### | |
| 746 | ###################### | |
| 747 | opts = {'driver': 'blkdebug', | |
| 748 | 'node-name': 'bd', | |
| 749 | 'config': '/dev/null', | |
| 750 | 'image': hd_opts(0)} | |
| 751 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 752 | self.assert_qmp(result, 'return', {}) | |
| 753 | ||
| 754 | # blkdebug allows reopening if we keep the same options | |
| 755 | self.reopen(opts) | |
| 756 | ||
| 757 | # but it currently does not allow changes | |
| 758 | self.reopen(opts, {'image': 'hd1'}, "Cannot change the option 'image'") | |
| 759 | self.reopen(opts, {'align': 33554432}, "Cannot change the option 'align'") | |
| 760 | self.reopen(opts, {'config': '/non/existent'}, "Cannot change the option 'config'") | |
| 761 | del opts['config'] | |
| 762 | self.reopen(opts, {}, "Option 'config' cannot be reset to its default value") | |
| 763 | ||
| 764 | # Delete the blkdebug node | |
| 765 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'bd') | |
| 766 | self.assert_qmp(result, 'return', {}) | |
| 767 | ||
| 768 | ################## | |
| 769 | ###### null ###### | |
| 770 | ################## | |
| a6f8f9f8 | 771 | opts = {'driver': 'null-co', 'node-name': 'root', 'size': 1024} |
| bf3e50f6 AG |
772 | |
| 773 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 774 | self.assert_qmp(result, 'return', {}) | |
| 775 | ||
| 776 | # 1 << 30 is the default value, but we cannot change it explicitly | |
| 777 | self.reopen(opts, {'size': (1 << 30)}, "Cannot change the option 'size'") | |
| 778 | ||
| 779 | # We cannot change 'size' back to its default value either | |
| 780 | del opts['size'] | |
| 781 | self.reopen(opts, {}, "Option 'size' cannot be reset to its default value") | |
| 782 | ||
| 783 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'root') | |
| 784 | self.assert_qmp(result, 'return', {}) | |
| 785 | ||
| 786 | ################## | |
| 787 | ###### file ###### | |
| 788 | ################## | |
| 789 | opts = hd_opts(0) | |
| 790 | opts['file']['locking'] = 'on' | |
| 791 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 792 | self.assert_qmp(result, 'return', {}) | |
| 793 | ||
| 794 | # 'locking' cannot be changed | |
| 795 | del opts['file']['locking'] | |
| 796 | self.reopen(opts, {'file.locking': 'on'}) | |
| 797 | self.reopen(opts, {'file.locking': 'off'}, "Cannot change the option 'locking'") | |
| 798 | self.reopen(opts, {}, "Option 'locking' cannot be reset to its default value") | |
| 799 | ||
| 800 | # Trying to reopen the 'file' node directly does not make a difference | |
| 801 | opts = opts['file'] | |
| 802 | self.reopen(opts, {'locking': 'on'}) | |
| 803 | self.reopen(opts, {'locking': 'off'}, "Cannot change the option 'locking'") | |
| 804 | self.reopen(opts, {}, "Option 'locking' cannot be reset to its default value") | |
| 805 | ||
| 806 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd0') | |
| 807 | self.assert_qmp(result, 'return', {}) | |
| 808 | ||
| 809 | ###################### | |
| 810 | ###### throttle ###### | |
| 811 | ###################### | |
| 812 | opts = { 'qom-type': 'throttle-group', 'id': 'group0', | |
| fa818b2f | 813 | 'limits': { 'iops-total': 1000 } } |
| bf3e50f6 AG |
814 | result = self.vm.qmp('object-add', conv_keys = False, **opts) |
| 815 | self.assert_qmp(result, 'return', {}) | |
| 816 | ||
| 817 | opts = { 'qom-type': 'throttle-group', 'id': 'group1', | |
| fa818b2f | 818 | 'limits': { 'iops-total': 2000 } } |
| bf3e50f6 AG |
819 | result = self.vm.qmp('object-add', conv_keys = False, **opts) |
| 820 | self.assert_qmp(result, 'return', {}) | |
| 821 | ||
| 822 | # Add a throttle filter with group = group0 | |
| 823 | opts = { 'driver': 'throttle', 'node-name': 'throttle0', | |
| 824 | 'throttle-group': 'group0', 'file': hd_opts(0) } | |
| 825 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 826 | self.assert_qmp(result, 'return', {}) | |
| 827 | ||
| 828 | # We can reopen it if we keep the same options | |
| 829 | self.reopen(opts) | |
| 830 | ||
| 831 | # We can also reopen if 'file' is a reference to the child | |
| 832 | self.reopen(opts, {'file': 'hd0'}) | |
| 833 | ||
| 834 | # This is illegal | |
| 835 | self.reopen(opts, {'throttle-group': 'notfound'}, "Throttle group 'notfound' does not exist") | |
| 836 | ||
| 837 | # But it's possible to change the group to group1 | |
| 838 | self.reopen(opts, {'throttle-group': 'group1'}) | |
| 839 | ||
| 840 | # Now group1 is in use, it cannot be deleted | |
| 841 | result = self.vm.qmp('object-del', id = 'group1') | |
| 842 | self.assert_qmp(result, 'error/class', 'GenericError') | |
| 843 | self.assert_qmp(result, 'error/desc', "object 'group1' is in use, can not be deleted") | |
| 844 | ||
| 845 | # Default options, this switches the group back to group0 | |
| 846 | self.reopen(opts) | |
| 847 | ||
| 848 | # So now we cannot delete group0 | |
| 849 | result = self.vm.qmp('object-del', id = 'group0') | |
| 850 | self.assert_qmp(result, 'error/class', 'GenericError') | |
| 851 | self.assert_qmp(result, 'error/desc', "object 'group0' is in use, can not be deleted") | |
| 852 | ||
| 853 | # But group1 is free this time, and it can be deleted | |
| 854 | result = self.vm.qmp('object-del', id = 'group1') | |
| 855 | self.assert_qmp(result, 'return', {}) | |
| 856 | ||
| 857 | # Let's delete the filter node | |
| 858 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'throttle0') | |
| 859 | self.assert_qmp(result, 'return', {}) | |
| 860 | ||
| 861 | # And we can finally get rid of group0 | |
| 862 | result = self.vm.qmp('object-del', id = 'group0') | |
| 863 | self.assert_qmp(result, 'return', {}) | |
| 864 | ||
| 865 | # If an image has a backing file then the 'backing' option must be | |
| 866 | # passed on reopen. We don't allow leaving the option out in this | |
| 867 | # case because it's unclear what the correct semantics would be. | |
| 868 | def test_missing_backing_options_1(self): | |
| 869 | # hd2 | |
| 870 | opts = hd_opts(2) | |
| 871 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 872 | self.assert_qmp(result, 'return', {}) | |
| 873 | ||
| 874 | # hd0 | |
| 875 | opts = hd_opts(0) | |
| 876 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 877 | self.assert_qmp(result, 'return', {}) | |
| 878 | ||
| 879 | # hd0 has no backing file: we can omit the 'backing' option | |
| 880 | self.reopen(opts) | |
| 881 | ||
| 882 | # hd2 <- hd0 | |
| 883 | self.reopen(opts, {'backing': 'hd2'}) | |
| 884 | ||
| 885 | # hd0 has a backing file: we must set the 'backing' option | |
| 886 | self.reopen(opts, {}, "backing is missing for 'hd0'") | |
| 887 | ||
| 888 | # hd2 can't be removed because it's the backing file of hd0 | |
| 889 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd2') | |
| 890 | self.assert_qmp(result, 'error/class', 'GenericError') | |
| 891 | self.assert_qmp(result, 'error/desc', "Node 'hd2' is busy: node is used as backing hd of 'hd0'") | |
| 892 | ||
| 893 | # Detach hd2 from hd0. | |
| 894 | self.reopen(opts, {'backing': None}) | |
| 0b877d09 HR |
895 | |
| 896 | # Without a backing file, we can omit 'backing' again | |
| 897 | self.reopen(opts) | |
| bf3e50f6 AG |
898 | |
| 899 | # Remove both hd0 and hd2 | |
| 900 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd0') | |
| 901 | self.assert_qmp(result, 'return', {}) | |
| 902 | ||
| 903 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd2') | |
| 904 | self.assert_qmp(result, 'return', {}) | |
| 905 | ||
| 906 | # If an image has default backing file (as part of its metadata) | |
| 907 | # then the 'backing' option must be passed on reopen. We don't | |
| 908 | # allow leaving the option out in this case because it's unclear | |
| 909 | # what the correct semantics would be. | |
| 910 | def test_missing_backing_options_2(self): | |
| 911 | # hd0 <- hd1 | |
| 912 | # (hd0 is hd1's default backing file) | |
| 913 | opts = hd_opts(1) | |
| 914 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 915 | self.assert_qmp(result, 'return', {}) | |
| 916 | ||
| 917 | # hd1 has a backing file: we can't omit the 'backing' option | |
| 918 | self.reopen(opts, {}, "backing is missing for 'hd1'") | |
| 919 | ||
| 920 | # Let's detach the backing file | |
| 921 | self.reopen(opts, {'backing': None}) | |
| 922 | ||
| 923 | # No backing file attached to hd1 now, but we still can't omit the 'backing' option | |
| 924 | self.reopen(opts, {}, "backing is missing for 'hd1'") | |
| 925 | ||
| 926 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd1') | |
| 927 | self.assert_qmp(result, 'return', {}) | |
| 928 | ||
| 929 | # Test that making 'backing' a reference to an existing child | |
| 930 | # keeps its current options | |
| 931 | def test_backing_reference(self): | |
| 932 | # hd2 <- hd1 <- hd0 | |
| 933 | opts = hd_opts(0) | |
| 934 | opts['backing'] = hd_opts(1) | |
| 935 | opts['backing']['backing'] = hd_opts(2) | |
| 936 | # Enable 'detect-zeroes' on all three nodes | |
| 937 | opts['detect-zeroes'] = 'on' | |
| 938 | opts['backing']['detect-zeroes'] = 'on' | |
| 939 | opts['backing']['backing']['detect-zeroes'] = 'on' | |
| 940 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 941 | self.assert_qmp(result, 'return', {}) | |
| 942 | ||
| 943 | # Reopen the chain passing the minimum amount of required options. | |
| 944 | # By making 'backing' a reference to hd1 (instead of a sub-dict) | |
| 945 | # we tell QEMU to keep its current set of options. | |
| 946 | opts = {'driver': iotests.imgfmt, | |
| 947 | 'node-name': 'hd0', | |
| 948 | 'file': 'hd0-file', | |
| 949 | 'backing': 'hd1' } | |
| 950 | self.reopen(opts) | |
| 951 | ||
| 952 | # This has reset 'detect-zeroes' on hd0, but not on hd1 and hd2. | |
| 953 | self.assert_qmp(self.get_node('hd0'), 'detect_zeroes', 'off') | |
| 954 | self.assert_qmp(self.get_node('hd1'), 'detect_zeroes', 'on') | |
| 955 | self.assert_qmp(self.get_node('hd2'), 'detect_zeroes', 'on') | |
| 956 | ||
| 957 | # Test what happens if the graph changes due to other operations | |
| 958 | # such as block-stream | |
| 959 | def test_block_stream_1(self): | |
| 960 | # hd1 <- hd0 | |
| 961 | opts = hd_opts(0) | |
| 962 | opts['backing'] = hd_opts(1) | |
| 963 | opts['backing']['backing'] = None | |
| 964 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 965 | self.assert_qmp(result, 'return', {}) | |
| 966 | ||
| 967 | # Stream hd1 into hd0 and wait until it's done | |
| 968 | result = self.vm.qmp('block-stream', conv_keys = True, job_id = 'stream0', device = 'hd0') | |
| 969 | self.assert_qmp(result, 'return', {}) | |
| 970 | self.wait_until_completed(drive = 'stream0') | |
| 971 | ||
| 972 | # Now we have only hd0 | |
| 973 | self.assertEqual(self.get_node('hd1'), None) | |
| 974 | ||
| 975 | # We have backing.* options but there's no backing file anymore | |
| 976 | self.reopen(opts, {}, "Cannot change the option 'backing.driver'") | |
| 977 | ||
| 978 | # If we remove the 'backing' option then we can reopen hd0 just fine | |
| 979 | del opts['backing'] | |
| 980 | self.reopen(opts) | |
| 981 | ||
| 982 | # We can also reopen hd0 if we set 'backing' to null | |
| 983 | self.reopen(opts, {'backing': None}) | |
| 984 | ||
| 985 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd0') | |
| 986 | self.assert_qmp(result, 'return', {}) | |
| 987 | ||
| 988 | # Another block_stream test | |
| 989 | def test_block_stream_2(self): | |
| 990 | # hd2 <- hd1 <- hd0 | |
| 991 | opts = hd_opts(0) | |
| 992 | opts['backing'] = hd_opts(1) | |
| 993 | opts['backing']['backing'] = hd_opts(2) | |
| 994 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 995 | self.assert_qmp(result, 'return', {}) | |
| 996 | ||
| 997 | # Stream hd1 into hd0 and wait until it's done | |
| 998 | result = self.vm.qmp('block-stream', conv_keys = True, job_id = 'stream0', | |
| 999 | device = 'hd0', base_node = 'hd2') | |
| 1000 | self.assert_qmp(result, 'return', {}) | |
| 1001 | self.wait_until_completed(drive = 'stream0') | |
| 1002 | ||
| 1003 | # The chain is hd2 <- hd0 now. hd1 is missing | |
| 1004 | self.assertEqual(self.get_node('hd1'), None) | |
| 1005 | ||
| 1006 | # The backing options in the dict were meant for hd1, but we cannot | |
| 1007 | # use them with hd2 because hd1 had a backing file while hd2 does not. | |
| 1008 | self.reopen(opts, {}, "Cannot change the option 'backing.driver'") | |
| 1009 | ||
| 1010 | # If we remove hd1's options from the dict then things work fine | |
| 1011 | opts['backing'] = opts['backing']['backing'] | |
| 1012 | self.reopen(opts) | |
| 1013 | ||
| 1014 | # We can also reopen hd0 if we use a reference to the backing file | |
| 1015 | self.reopen(opts, {'backing': 'hd2'}) | |
| 1016 | ||
| 1017 | # But we cannot leave the option out | |
| 1018 | del opts['backing'] | |
| 1019 | self.reopen(opts, {}, "backing is missing for 'hd0'") | |
| 1020 | ||
| 1021 | # Now we can delete hd0 (and hd2) | |
| 1022 | result = self.vm.qmp('blockdev-del', conv_keys = True, node_name = 'hd0') | |
| 1023 | self.assert_qmp(result, 'return', {}) | |
| 1024 | self.assertEqual(self.get_node('hd2'), None) | |
| 1025 | ||
| 1026 | # Reopen the chain during a block-stream job (from hd1 to hd0) | |
| 1027 | def test_block_stream_3(self): | |
| 1028 | # hd2 <- hd1 <- hd0 | |
| 1029 | opts = hd_opts(0) | |
| 1030 | opts['backing'] = hd_opts(1) | |
| 1031 | opts['backing']['backing'] = hd_opts(2) | |
| 1032 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 1033 | self.assert_qmp(result, 'return', {}) | |
| 1034 | ||
| 1035 | # hd2 <- hd0 | |
| 1036 | result = self.vm.qmp('block-stream', conv_keys = True, job_id = 'stream0', | |
| c423a6af HR |
1037 | device = 'hd0', base_node = 'hd2', |
| 1038 | auto_finalize = False) | |
| bf3e50f6 AG |
1039 | self.assert_qmp(result, 'return', {}) |
| 1040 | ||
| c624b015 | 1041 | # We can remove hd2 while the stream job is ongoing |
| bf3e50f6 | 1042 | opts['backing']['backing'] = None |
| c624b015 | 1043 | self.reopen(opts, {}) |
| bf3e50f6 AG |
1044 | |
| 1045 | # We can't remove hd1 while the stream job is ongoing | |
| 1046 | opts['backing'] = None | |
| bfae052a | 1047 | self.reopen(opts, {}, "Cannot change frozen 'backing' link from 'hd0' to 'hd1'") |
| bf3e50f6 | 1048 | |
| c423a6af | 1049 | self.vm.run_job('stream0', auto_finalize = False, auto_dismiss = True) |
| bf3e50f6 AG |
1050 | |
| 1051 | # Reopen the chain during a block-stream job (from hd2 to hd1) | |
| 1052 | def test_block_stream_4(self): | |
| 1053 | # hd2 <- hd1 <- hd0 | |
| 1054 | opts = hd_opts(0) | |
| 1055 | opts['backing'] = hd_opts(1) | |
| 1056 | opts['backing']['backing'] = hd_opts(2) | |
| 1057 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 1058 | self.assert_qmp(result, 'return', {}) | |
| 1059 | ||
| 1060 | # hd1 <- hd0 | |
| 1061 | result = self.vm.qmp('block-stream', conv_keys = True, job_id = 'stream0', | |
| 205736f4 AS |
1062 | device = 'hd1', filter_node_name='cor', |
| 1063 | auto_finalize = False) | |
| bf3e50f6 AG |
1064 | self.assert_qmp(result, 'return', {}) |
| 1065 | ||
| 205736f4 AS |
1066 | # We can't reopen with the original options because there is a filter |
| 1067 | # inserted by stream job above hd1. | |
| c423a6af | 1068 | self.reopen(opts, {}, |
| 205736f4 AS |
1069 | "Cannot change the option 'backing.backing.file.node-name'") |
| 1070 | ||
| 1071 | # We can't reopen hd1 to read-only, as block-stream requires it to be | |
| 1072 | # read-write | |
| 1073 | self.reopen(opts['backing'], {'read-only': True}, | |
| c20555e1 | 1074 | "Read-only block node 'hd1' cannot support read-write users") |
| bf3e50f6 AG |
1075 | |
| 1076 | # We can't remove hd2 while the stream job is ongoing | |
| 1077 | opts['backing']['backing'] = None | |
| 205736f4 | 1078 | self.reopen(opts['backing'], {'read-only': False}, |
| bfae052a | 1079 | "Cannot change frozen 'backing' link from 'hd1' to 'hd2'") |
| bf3e50f6 AG |
1080 | |
| 1081 | # We can detach hd1 from hd0 because it doesn't affect the stream job | |
| 1082 | opts['backing'] = None | |
| 1083 | self.reopen(opts) | |
| 1084 | ||
| c423a6af | 1085 | self.vm.run_job('stream0', auto_finalize = False, auto_dismiss = True) |
| bf3e50f6 AG |
1086 | |
| 1087 | # Reopen the chain during a block-commit job (from hd0 to hd2) | |
| 1088 | def test_block_commit_1(self): | |
| 1089 | # hd2 <- hd1 <- hd0 | |
| 1090 | opts = hd_opts(0) | |
| 1091 | opts['backing'] = hd_opts(1) | |
| 1092 | opts['backing']['backing'] = hd_opts(2) | |
| 1093 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 1094 | self.assert_qmp(result, 'return', {}) | |
| 1095 | ||
| 1096 | result = self.vm.qmp('block-commit', conv_keys = True, job_id = 'commit0', | |
| c423a6af | 1097 | device = 'hd0') |
| bf3e50f6 AG |
1098 | self.assert_qmp(result, 'return', {}) |
| 1099 | ||
| 1100 | # We can't remove hd2 while the commit job is ongoing | |
| 1101 | opts['backing']['backing'] = None | |
| bfae052a | 1102 | self.reopen(opts, {}, "Cannot change frozen 'backing' link from 'hd1' to 'hd2'") |
| bf3e50f6 AG |
1103 | |
| 1104 | # We can't remove hd1 while the commit job is ongoing | |
| 1105 | opts['backing'] = None | |
| bfae052a | 1106 | self.reopen(opts, {}, "Cannot change frozen 'backing' link from 'hd0' to 'hd1'") |
| bf3e50f6 AG |
1107 | |
| 1108 | event = self.vm.event_wait(name='BLOCK_JOB_READY') | |
| 1109 | self.assert_qmp(event, 'data/device', 'commit0') | |
| 1110 | self.assert_qmp(event, 'data/type', 'commit') | |
| 1111 | self.assert_qmp_absent(event, 'data/error') | |
| 1112 | ||
| 1113 | result = self.vm.qmp('block-job-complete', device='commit0') | |
| 1114 | self.assert_qmp(result, 'return', {}) | |
| 1115 | ||
| 1116 | self.wait_until_completed(drive = 'commit0') | |
| 1117 | ||
| 1118 | # Reopen the chain during a block-commit job (from hd1 to hd2) | |
| 1119 | def test_block_commit_2(self): | |
| 1120 | # hd2 <- hd1 <- hd0 | |
| 1121 | opts = hd_opts(0) | |
| 1122 | opts['backing'] = hd_opts(1) | |
| 1123 | opts['backing']['backing'] = hd_opts(2) | |
| 1124 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) | |
| 1125 | self.assert_qmp(result, 'return', {}) | |
| 1126 | ||
| 1127 | result = self.vm.qmp('block-commit', conv_keys = True, job_id = 'commit0', | |
| c423a6af HR |
1128 | device = 'hd0', top_node = 'hd1', |
| 1129 | auto_finalize = False) | |
| bf3e50f6 AG |
1130 | self.assert_qmp(result, 'return', {}) |
| 1131 | ||
| 1132 | # We can't remove hd2 while the commit job is ongoing | |
| 1133 | opts['backing']['backing'] = None | |
| 1134 | self.reopen(opts, {}, "Cannot change the option 'backing.driver'") | |
| 1135 | ||
| 1136 | # We can't remove hd1 while the commit job is ongoing | |
| 1137 | opts['backing'] = None | |
| ecd30d2d | 1138 | self.reopen(opts, {}, "Cannot replace implicit backing child of hd0") |
| bf3e50f6 AG |
1139 | |
| 1140 | # hd2 <- hd0 | |
| c423a6af | 1141 | self.vm.run_job('commit0', auto_finalize = False, auto_dismiss = True) |
| bf3e50f6 AG |
1142 | |
| 1143 | self.assert_qmp(self.get_node('hd0'), 'ro', False) | |
| 1144 | self.assertEqual(self.get_node('hd1'), None) | |
| 1145 | self.assert_qmp(self.get_node('hd2'), 'ro', True) | |
| 1146 | ||
| ee810602 KW |
1147 | def run_test_iothreads(self, iothread_a, iothread_b, errmsg = None, |
| 1148 | opts_a = None, opts_b = None): | |
| 1149 | opts = opts_a or hd_opts(0) | |
| bf3e50f6 AG |
1150 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts) |
| 1151 | self.assert_qmp(result, 'return', {}) | |
| 1152 | ||
| ee810602 | 1153 | opts2 = opts_b or hd_opts(2) |
| bf3e50f6 AG |
1154 | result = self.vm.qmp('blockdev-add', conv_keys = False, **opts2) |
| 1155 | self.assert_qmp(result, 'return', {}) | |
| 1156 | ||
| 1157 | result = self.vm.qmp('object-add', qom_type='iothread', id='iothread0') | |
| 1158 | self.assert_qmp(result, 'return', {}) | |
| 1159 | ||
| 1160 | result = self.vm.qmp('object-add', qom_type='iothread', id='iothread1') | |
| 1161 | self.assert_qmp(result, 'return', {}) | |
| 1162 | ||
| 97518e11 KW |
1163 | result = self.vm.qmp('device_add', driver='virtio-scsi', id='scsi0', |
| 1164 | iothread=iothread_a) | |
| bf3e50f6 AG |
1165 | self.assert_qmp(result, 'return', {}) |
| 1166 | ||
| 97518e11 KW |
1167 | result = self.vm.qmp('device_add', driver='virtio-scsi', id='scsi1', |
| 1168 | iothread=iothread_b) | |
| bf3e50f6 AG |
1169 | self.assert_qmp(result, 'return', {}) |
| 1170 | ||
| 97518e11 KW |
1171 | if iothread_a: |
| 1172 | result = self.vm.qmp('device_add', driver='scsi-hd', drive='hd0', | |
| 1173 | share_rw=True, bus="scsi0.0") | |
| 1174 | self.assert_qmp(result, 'return', {}) | |
| bf3e50f6 | 1175 | |
| 97518e11 KW |
1176 | if iothread_b: |
| 1177 | result = self.vm.qmp('device_add', driver='scsi-hd', drive='hd2', | |
| 1178 | share_rw=True, bus="scsi1.0") | |
| 1179 | self.assert_qmp(result, 'return', {}) | |
| bf3e50f6 | 1180 | |
| 97518e11 KW |
1181 | # Attaching the backing file may or may not work |
| 1182 | self.reopen(opts, {'backing': 'hd2'}, errmsg) | |
| 1183 | ||
| 1184 | # But removing the backing file should always work | |
| 1185 | self.reopen(opts, {'backing': None}) | |
| 1186 | ||
| 1187 | self.vm.shutdown() | |
| 1188 | ||
| 1189 | # We don't allow setting a backing file that uses a different AioContext if | |
| 1190 | # neither of them can switch to the other AioContext | |
| 1191 | def test_iothreads_error(self): | |
| 1192 | self.run_test_iothreads('iothread0', 'iothread1', | |
| 1de6b45f | 1193 | "Cannot change iothread of active block backend") |
| 97518e11 KW |
1194 | |
| 1195 | def test_iothreads_compatible_users(self): | |
| 1196 | self.run_test_iothreads('iothread0', 'iothread0') | |
| 1197 | ||
| 1198 | def test_iothreads_switch_backing(self): | |
| e2c8eb14 | 1199 | self.run_test_iothreads('iothread0', '') |
| 97518e11 KW |
1200 | |
| 1201 | def test_iothreads_switch_overlay(self): | |
| e2c8eb14 | 1202 | self.run_test_iothreads('', 'iothread0') |
| bf3e50f6 | 1203 | |
| ee810602 KW |
1204 | def test_iothreads_with_throttling(self): |
| 1205 | # Create a throttle-group object | |
| 1206 | opts = { 'qom-type': 'throttle-group', 'id': 'group0', | |
| 1207 | 'limits': { 'iops-total': 1000 } } | |
| 1208 | result = self.vm.qmp('object-add', conv_keys = False, **opts) | |
| 1209 | self.assert_qmp(result, 'return', {}) | |
| 1210 | ||
| 1211 | # Options with a throttle filter between format and protocol | |
| 1212 | opts = [ | |
| 1213 | { | |
| 1214 | 'driver': iotests.imgfmt, | |
| 1215 | 'node-name': f'hd{idx}', | |
| 1216 | 'file' : { | |
| 1217 | 'node-name': f'hd{idx}-throttle', | |
| 1218 | 'driver': 'throttle', | |
| 1219 | 'throttle-group': 'group0', | |
| 1220 | 'file': { | |
| 1221 | 'driver': 'file', | |
| 1222 | 'node-name': f'hd{idx}-file', | |
| 1223 | 'filename': hd_path[idx], | |
| 1224 | }, | |
| 1225 | }, | |
| 1226 | } | |
| 1227 | for idx in (0, 2) | |
| 1228 | ] | |
| 1229 | ||
| 1230 | self.run_test_iothreads('iothread0', 'iothread0', None, | |
| 1231 | opts[0], opts[1]) | |
| 1232 | ||
| bf3e50f6 | 1233 | if __name__ == '__main__': |
| 52ea799e | 1234 | iotests.activate_logging() |
| 103cbc77 HR |
1235 | iotests.main(supported_fmts=["qcow2"], |
| 1236 | supported_protocols=["file"]) |