tests/qtest/drive_del-test.c

   1 /*
   2  * blockdev.c test cases
   3  *
   4  * Copyright (C) 2013-2014 Red Hat Inc.
   5  *
   6  * Authors:
   7  *  Stefan Hajnoczi <stefanha@redhat.com>
   8  *
   9  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
  10  * See the COPYING.LIB file in the top-level directory.
  11  */
  12
  13 #include "qemu/osdep.h"
  14 #include "libqtest.h"
  15 #include "libqos/virtio.h"
  16 #include "qapi/qmp/qdict.h"
  17 #include "qapi/qmp/qlist.h"
  18
  19 static bool look_for_drive0(QTestState *qts, const char *command, const char *key)
  20 {
  21     QDict *response;
  22     QList *ret;
  23     QListEntry *entry;
  24     bool found;
  25
  26     response = qtest_qmp(qts, "{'execute': %s}", command);
  27     g_assert(response && qdict_haskey(response, "return"));
  28     ret = qdict_get_qlist(response, "return");
  29
  30     found = false;
  31     QLIST_FOREACH_ENTRY(ret, entry) {
  32         QDict *entry_dict = qobject_to(QDict, entry->value);
  33         if (!strcmp(qdict_get_str(entry_dict, key), "drive0")) {
  34             found = true;
  35             break;
  36         }
  37     }
  38
  39     qobject_unref(response);
  40     return found;
  41 }
  42
  43 static bool has_drive(QTestState *qts)
  44 {
  45     return look_for_drive0(qts, "query-block", "device");
  46 }
  47
  48 static bool has_blockdev(QTestState *qts)
  49 {
  50     return look_for_drive0(qts, "query-named-block-nodes", "node-name");
  51 }
  52
  53 static void blockdev_add_with_media(QTestState *qts)
  54 {
  55     QDict *response;
  56
  57     response = qtest_qmp(qts,
  58                          "{ 'execute': 'blockdev-add',"
  59                          "  'arguments': {"
  60                          "      'driver': 'raw',"
  61                          "      'node-name': 'drive0',"
  62                          "      'file': {"
  63                          "          'driver': 'null-co',"
  64                          "          'read-zeroes': true"
  65                          "      }"
  66                          "  }"
  67                          "}");
  68
  69     g_assert(response);
  70     g_assert(qdict_haskey(response, "return"));
  71     qobject_unref(response);
  72     g_assert(has_blockdev(qts));
  73 }
  74
  75 static void drive_add(QTestState *qts)
  76 {
  77     char *resp = qtest_hmp(qts, "drive_add 0 if=none,id=drive0");
  78
  79     g_assert_cmpstr(resp, ==, "OK\r\n");
  80     g_assert(has_drive(qts));
  81     g_free(resp);
  82 }
  83
  84 static void drive_add_with_media(QTestState *qts)
  85 {
  86     char *resp = qtest_hmp(qts,
  87                            "drive_add 0 if=none,id=drive0,file=null-co://,"
  88                            "file.read-zeroes=on,format=raw");
  89
  90     g_assert_cmpstr(resp, ==, "OK\r\n");
  91     g_assert(has_drive(qts));
  92     g_free(resp);
  93 }
  94
  95 static void drive_del(QTestState *qts)
  96 {
  97     char *resp;
  98
  99     g_assert(has_drive(qts));
 100     resp = qtest_hmp(qts, "drive_del drive0");
 101     g_assert_cmpstr(resp, ==, "");
 102     g_assert(!has_drive(qts));
 103     g_free(resp);
 104 }
 105
 106 /*
 107  * qvirtio_get_dev_type:
 108  * Returns: the preferred virtio bus/device type for the current architecture.
 109  * TODO: delete this
 110  */
 111 static const char *qvirtio_get_dev_type(void)
 112 {
 113     const char *arch = qtest_get_arch();
 114
 115     if (g_str_equal(arch, "arm") || g_str_equal(arch, "aarch64")) {
 116         return "device";  /* for virtio-mmio */
 117     } else if (g_str_equal(arch, "s390x")) {
 118         return "ccw";
 119     } else {
 120         return "pci";
 121     }
 122 }
 123
 124 static void device_add(QTestState *qts)
 125 {
 126     g_autofree char *driver = g_strdup_printf("virtio-blk-%s",
 127                                               qvirtio_get_dev_type());
 128     QDict *response =
 129                qtest_qmp(qts, "{'execute': 'device_add',"
 130                               " 'arguments': {"
 131                               "   'driver': %s,"
 132                               "   'drive': 'drive0',"
 133                               "   'id': 'dev0'"
 134                               "}}", driver);
 135     g_assert(response);
 136     g_assert(qdict_haskey(response, "return"));
 137     qobject_unref(response);
 138 }
 139
 140 static void device_del(QTestState *qts, bool and_reset)
 141 {
 142     QDict *response;
 143
 144     qtest_qmp_device_del_send(qts, "dev0");
 145
 146     if (and_reset) {
 147         response = qtest_qmp(qts, "{'execute': 'system_reset' }");
 148         g_assert(response);
 149         g_assert(qdict_haskey(response, "return"));
 150         qobject_unref(response);
 151     }
 152
 153     qtest_qmp_eventwait(qts, "DEVICE_DELETED");
 154 }
 155
 156 static void test_drive_without_dev(void)
 157 {
 158     QTestState *qts;
 159
 160     /* Start with an empty drive */
 161     qts = qtest_init("-drive if=none,id=drive0");
 162
 163     /* Delete the drive */
 164     drive_del(qts);
 165
 166     /* Ensure re-adding the drive works - there should be no duplicate ID error
 167      * because the old drive must be gone.
 168      */
 169     drive_add(qts);
 170
 171     qtest_quit(qts);
 172 }
 173
 174 static void test_after_failed_device_add(void)
 175 {
 176     char driver[32];
 177     QDict *response;
 178     QTestState *qts;
 179
 180     snprintf(driver, sizeof(driver), "virtio-blk-%s",
 181              qvirtio_get_dev_type());
 182
 183     qts = qtest_init("-drive if=none,id=drive0");
 184
 185     /* Make device_add fail. If this leaks the virtio-blk device then a
 186      * reference to drive0 will also be held (via qdev properties).
 187      */
 188     response = qtest_qmp(qts, "{'execute': 'device_add',"
 189                               " 'arguments': {"
 190                               "   'driver': %s,"
 191                               "   'drive': 'drive0'"
 192                               "}}", driver);
 193     g_assert(response);
 194     qmp_expect_error_and_unref(response, "GenericError");
 195
 196     /* Delete the drive */
 197     drive_del(qts);
 198
 199     /* Try to re-add the drive.  This fails with duplicate IDs if a leaked
 200      * virtio-blk device exists that holds a reference to the old drive0.
 201      */
 202     drive_add(qts);
 203
 204     qtest_quit(qts);
 205 }
 206
 207 static void test_drive_del_device_del(void)
 208 {
 209     QTestState *qts;
 210
 211     /* Start with a drive used by a device that unplugs instantaneously */
 212     qts = qtest_initf("-drive if=none,id=drive0,file=null-co://,"
 213                       "file.read-zeroes=on,format=raw"
 214                       " -device virtio-scsi-%s"
 215                       " -device scsi-hd,drive=drive0,id=dev0",
 216                       qvirtio_get_dev_type());
 217
 218     /*
 219      * Delete the drive, and then the device
 220      * Doing it in this order takes notoriously tricky special paths
 221      */
 222     drive_del(qts);
 223     device_del(qts, false);
 224     g_assert(!has_drive(qts));
 225
 226     qtest_quit(qts);
 227 }
 228
 229 static void test_cli_device_del(void)
 230 {
 231     QTestState *qts;
 232     const char *arch = qtest_get_arch();
 233     const char *machine_addition = "";
 234
 235     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 236         machine_addition = "-machine pc";
 237     }
 238
 239     /*
 240      * -drive/-device and device_del.  Start with a drive used by a
 241      * device that unplugs after reset.
 242      */
 243     qts = qtest_initf("%s -drive if=none,id=drive0,file=null-co://,"
 244                       "file.read-zeroes=on,format=raw"
 245                       " -device virtio-blk-%s,drive=drive0,id=dev0",
 246                       machine_addition,
 247                       qvirtio_get_dev_type());
 248
 249     device_del(qts, true);
 250     g_assert(!has_drive(qts));
 251
 252     qtest_quit(qts);
 253 }
 254
 255 static void test_cli_device_del_q35(void)
 256 {
 257     QTestState *qts;
 258
 259     /*
 260      * -drive/-device and device_del.  Start with a drive used by a
 261      * device that unplugs after reset.
 262      */
 263     qts = qtest_initf("-drive if=none,id=drive0,file=null-co://,"
 264                       "file.read-zeroes=on,format=raw "
 265                       "-machine q35 -device pcie-root-port,id=p1 "
 266                       "-device pcie-pci-bridge,bus=p1,id=b1 "
 267                       "-device virtio-blk-%s,drive=drive0,bus=b1,id=dev0",
 268                       qvirtio_get_dev_type());
 269
 270     device_del(qts, true);
 271     g_assert(!has_drive(qts));
 272
 273     qtest_quit(qts);
 274 }
 275
 276 static void test_empty_device_del(void)
 277 {
 278     QTestState *qts;
 279
 280     /* device_del with no drive plugged.  */
 281     qts = qtest_initf("-device virtio-scsi-%s -device scsi-cd,id=dev0",
 282                       qvirtio_get_dev_type());
 283
 284     device_del(qts, false);
 285     qtest_quit(qts);
 286 }
 287
 288 static void test_device_add_and_del(void)
 289 {
 290     QTestState *qts;
 291     const char *arch = qtest_get_arch();
 292     const char *machine_addition = "";
 293
 294     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 295         machine_addition = "-machine pc";
 296     }
 297
 298     /*
 299      * -drive/device_add and device_del.  Start with a drive used by a
 300      * device that unplugs after reset.
 301      */
 302     qts = qtest_initf("%s -drive if=none,id=drive0,file=null-co://,"
 303                      "file.read-zeroes=on,format=raw", machine_addition);
 304
 305     device_add(qts);
 306     device_del(qts, true);
 307     g_assert(!has_drive(qts));
 308
 309     qtest_quit(qts);
 310 }
 311
 312 static void device_add_q35(QTestState *qts)
 313 {
 314     g_autofree char *driver = g_strdup_printf("virtio-blk-%s",
 315                                               qvirtio_get_dev_type());
 316     QDict *response =
 317                qtest_qmp(qts, "{'execute': 'device_add',"
 318                               " 'arguments': {"
 319                               "   'driver': %s,"
 320                               "   'drive': 'drive0',"
 321                               "   'id': 'dev0',"
 322                               "   'bus': 'b1'"
 323                               "}}", driver);
 324     g_assert(response);
 325     g_assert(qdict_haskey(response, "return"));
 326     qobject_unref(response);
 327 }
 328
 329 static void test_device_add_and_del_q35(void)
 330 {
 331     QTestState *qts;
 332
 333     /*
 334      * -drive/device_add and device_del.  Start with a drive used by a
 335      * device that unplugs after reset.
 336      */
 337     qts = qtest_initf("-machine q35 -device pcie-root-port,id=p1 "
 338                      "-device pcie-pci-bridge,bus=p1,id=b1 "
 339                      "-drive if=none,id=drive0,file=null-co://,"
 340                      "file.read-zeroes=on,format=raw");
 341
 342     device_add_q35(qts);
 343     device_del(qts, true);
 344     g_assert(!has_drive(qts));
 345
 346     qtest_quit(qts);
 347 }
 348
 349 static void test_drive_add_device_add_and_del(void)
 350 {
 351     QTestState *qts;
 352     const char *arch = qtest_get_arch();
 353     const char *machine_addition = "";
 354
 355     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 356         machine_addition = "-machine pc";
 357     }
 358
 359     qts = qtest_init(machine_addition);
 360
 361     /*
 362      * drive_add/device_add and device_del.  The drive is used by a
 363      * device that unplugs after reset.
 364      */
 365     drive_add_with_media(qts);
 366     device_add(qts);
 367     device_del(qts, true);
 368     g_assert(!has_drive(qts));
 369
 370     qtest_quit(qts);
 371 }
 372
 373 static void test_drive_add_device_add_and_del_q35(void)
 374 {
 375     QTestState *qts;
 376
 377     qts = qtest_init("-machine q35 -device pcie-root-port,id=p1 "
 378                      "-device pcie-pci-bridge,bus=p1,id=b1");
 379
 380     /*
 381      * drive_add/device_add and device_del.  The drive is used by a
 382      * device that unplugs after reset.
 383      */
 384     drive_add_with_media(qts);
 385     device_add_q35(qts);
 386     device_del(qts, true);
 387     g_assert(!has_drive(qts));
 388
 389     qtest_quit(qts);
 390 }
 391
 392 static void test_blockdev_add_device_add_and_del(void)
 393 {
 394     QTestState *qts;
 395     const char *arch = qtest_get_arch();
 396     const char *machine_addition = "";
 397
 398     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 399         machine_addition = "-machine pc";
 400     }
 401
 402     qts = qtest_init(machine_addition);
 403
 404     /*
 405      * blockdev_add/device_add and device_del. The drive is used by a
 406      * device that unplugs after reset, but it doesn't go away.
 407      */
 408     blockdev_add_with_media(qts);
 409     device_add(qts);
 410     device_del(qts, true);
 411     g_assert(has_blockdev(qts));
 412
 413     qtest_quit(qts);
 414 }
 415
 416 static void test_blockdev_add_device_add_and_del_q35(void)
 417 {
 418     QTestState *qts;
 419
 420     qts = qtest_init("-machine q35 -device pcie-root-port,id=p1 "
 421                      "-device pcie-pci-bridge,bus=p1,id=b1");
 422
 423     /*
 424      * blockdev_add/device_add and device_del. The drive is used by a
 425      * device that unplugs after reset, but it doesn't go away.
 426      */
 427     blockdev_add_with_media(qts);
 428     device_add_q35(qts);
 429     device_del(qts, true);
 430     g_assert(has_blockdev(qts));
 431
 432     qtest_quit(qts);
 433 }
 434
 435 int main(int argc, char **argv)
 436 {
 437     g_test_init(&argc, &argv, NULL);
 438
 439     qtest_add_func("/drive_del/without-dev", test_drive_without_dev);
 440
 441     if (qvirtio_get_dev_type() != NULL) {
 442         qtest_add_func("/drive_del/after_failed_device_add",
 443                        test_after_failed_device_add);
 444         qtest_add_func("/drive_del/drive_del_device_del",
 445                        test_drive_del_device_del);
 446         qtest_add_func("/device_del/drive/cli_device",
 447                        test_cli_device_del);
 448         qtest_add_func("/device_del/drive/device_add",
 449                        test_device_add_and_del);
 450         qtest_add_func("/device_del/drive/drive_add_device_add",
 451                        test_drive_add_device_add_and_del);
 452         qtest_add_func("/device_del/empty",
 453                        test_empty_device_del);
 454         qtest_add_func("/device_del/blockdev",
 455                        test_blockdev_add_device_add_and_del);
 456
 457         if (qtest_has_machine("q35")) {
 458             qtest_add_func("/device_del/drive/cli_device_q35",
 459                            test_cli_device_del_q35);
 460             qtest_add_func("/device_del/drive/device_add_q35",
 461                            test_device_add_and_del_q35);
 462             qtest_add_func("/device_del/drive/drive_add_device_add_q35",
 463                            test_drive_add_device_add_and_del_q35);
 464             qtest_add_func("/device_del/blockdev_q35",
 465                            test_blockdev_add_device_add_and_del_q35);
 466         }
 467     }
 468
 469     return g_test_run();
 470 }