tests/virtio-blk-test.c

   1 /*
   2  * QTest testcase for VirtIO Block Device
   3  *
   4  * Copyright (c) 2014 SUSE LINUX Products GmbH
   5  * Copyright (c) 2014 Marc Marí
   6  *
   7  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   8  * See the COPYING file in the top-level directory.
   9  */
  10
  11 #include "qemu/osdep.h"
  12 #include "libqtest.h"
  13 #include "libqos/libqos-pc.h"
  14 #include "libqos/libqos-spapr.h"
  15 #include "libqos/virtio.h"
  16 #include "libqos/virtio-pci.h"
  17 #include "libqos/virtio-mmio.h"
  18 #include "libqos/malloc-generic.h"
  19 #include "qemu/bswap.h"
  20 #include "standard-headers/linux/virtio_ids.h"
  21 #include "standard-headers/linux/virtio_config.h"
  22 #include "standard-headers/linux/virtio_ring.h"
  23 #include "standard-headers/linux/virtio_blk.h"
  24 #include "standard-headers/linux/virtio_pci.h"
  25
  26 #define TEST_IMAGE_SIZE         (64 * 1024 * 1024)
  27 #define QVIRTIO_BLK_TIMEOUT_US  (30 * 1000 * 1000)
  28 #define PCI_SLOT_HP             0x06
  29 #define PCI_SLOT                0x04
  30 #define PCI_FN                  0x00
  31
  32 #define MMIO_PAGE_SIZE          4096
  33 #define MMIO_DEV_BASE_ADDR      0x0A003E00
  34 #define MMIO_RAM_ADDR           0x40000000
  35 #define MMIO_RAM_SIZE           0x20000000
  36
  37 typedef struct QVirtioBlkReq {
  38     uint32_t type;
  39     uint32_t ioprio;
  40     uint64_t sector;
  41     char *data;
  42     uint8_t status;
  43 } QVirtioBlkReq;
  44
  45 static char *drive_create(void)
  46 {
  47     int fd, ret;
  48     char *tmp_path = g_strdup("/tmp/qtest.XXXXXX");
  49
  50     /* Create a temporary raw image */
  51     fd = mkstemp(tmp_path);
  52     g_assert_cmpint(fd, >=, 0);
  53     ret = ftruncate(fd, TEST_IMAGE_SIZE);
  54     g_assert_cmpint(ret, ==, 0);
  55     close(fd);
  56
  57     return tmp_path;
  58 }
  59
  60 static QOSState *pci_test_start(void)
  61 {
  62     QOSState *qs;
  63     const char *arch = qtest_get_arch();
  64     char *tmp_path;
  65     const char *cmd = "-drive if=none,id=drive0,file=%s,format=raw "
  66                       "-drive if=none,id=drive1,file=null-co://,format=raw "
  67                       "-device virtio-blk-pci,id=drv0,drive=drive0,"
  68                       "addr=%x.%x";
  69
  70     tmp_path = drive_create();
  71
  72     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
  73         qs = qtest_pc_boot(cmd, tmp_path, PCI_SLOT, PCI_FN);
  74     } else if (strcmp(arch, "ppc64") == 0) {
  75         qs = qtest_spapr_boot(cmd, tmp_path, PCI_SLOT, PCI_FN);
  76     } else {
  77         g_printerr("virtio-blk tests are only available on x86 or ppc64\n");
  78         exit(EXIT_FAILURE);
  79     }
  80     unlink(tmp_path);
  81     g_free(tmp_path);
  82     return qs;
  83 }
  84
  85 static void arm_test_start(void)
  86 {
  87     char *tmp_path;
  88
  89     tmp_path = drive_create();
  90
  91     global_qtest = qtest_startf("-machine virt "
  92                                 "-drive if=none,id=drive0,file=%s,format=raw "
  93                                 "-device virtio-blk-device,drive=drive0",
  94                                 tmp_path);
  95     unlink(tmp_path);
  96     g_free(tmp_path);
  97 }
  98
  99 static void test_end(void)
 100 {
 101     qtest_end();
 102 }
 103
 104 static QVirtioPCIDevice *virtio_blk_pci_init(QPCIBus *bus, int slot)
 105 {
 106     QVirtioPCIDevice *dev;
 107
 108     dev = qvirtio_pci_device_find_slot(bus, VIRTIO_ID_BLOCK, slot);
 109     g_assert(dev != NULL);
 110     g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_BLOCK);
 111     g_assert_cmphex(dev->pdev->devfn, ==, ((slot << 3) | PCI_FN));
 112
 113     qvirtio_pci_device_enable(dev);
 114     qvirtio_reset(&dev->vdev);
 115     qvirtio_set_acknowledge(&dev->vdev);
 116     qvirtio_set_driver(&dev->vdev);
 117
 118     return dev;
 119 }
 120
 121 static inline void virtio_blk_fix_request(QVirtioDevice *d, QVirtioBlkReq *req)
 122 {
 123 #ifdef HOST_WORDS_BIGENDIAN
 124     const bool host_is_big_endian = true;
 125 #else
 126     const bool host_is_big_endian = false;
 127 #endif
 128
 129     if (qvirtio_is_big_endian(d) != host_is_big_endian) {
 130         req->type = bswap32(req->type);
 131         req->ioprio = bswap32(req->ioprio);
 132         req->sector = bswap64(req->sector);
 133     }
 134 }
 135
 136 static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioDevice *d,
 137                                    QVirtioBlkReq *req, uint64_t data_size)
 138 {
 139     uint64_t addr;
 140     uint8_t status = 0xFF;
 141
 142     g_assert_cmpuint(data_size % 512, ==, 0);
 143     addr = guest_alloc(alloc, sizeof(*req) + data_size);
 144
 145     virtio_blk_fix_request(d, req);
 146
 147     memwrite(addr, req, 16);
 148     memwrite(addr + 16, req->data, data_size);
 149     memwrite(addr + 16 + data_size, &status, sizeof(status));
 150
 151     return addr;
 152 }
 153
 154 static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
 155                        QVirtQueue *vq)
 156 {
 157     QVirtioBlkReq req;
 158     uint64_t req_addr;
 159     uint64_t capacity;
 160     uint32_t features;
 161     uint32_t free_head;
 162     uint8_t status;
 163     char *data;
 164
 165     capacity = qvirtio_config_readq(dev, 0);
 166
 167     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 168
 169     features = qvirtio_get_features(dev);
 170     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 171                     (1u << VIRTIO_RING_F_INDIRECT_DESC) |
 172                     (1u << VIRTIO_RING_F_EVENT_IDX) |
 173                     (1u << VIRTIO_BLK_F_SCSI));
 174     qvirtio_set_features(dev, features);
 175
 176     qvirtio_set_driver_ok(dev);
 177
 178     /* Write and read with 3 descriptor layout */
 179     /* Write request */
 180     req.type = VIRTIO_BLK_T_OUT;
 181     req.ioprio = 1;
 182     req.sector = 0;
 183     req.data = g_malloc0(512);
 184     strcpy(req.data, "TEST");
 185
 186     req_addr = virtio_blk_request(alloc, dev, &req, 512);
 187
 188     g_free(req.data);
 189
 190     free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
 191     qvirtqueue_add(vq, req_addr + 16, 512, false, true);
 192     qvirtqueue_add(vq, req_addr + 528, 1, true, false);
 193
 194     qvirtqueue_kick(dev, vq, free_head);
 195
 196     qvirtio_wait_used_elem(dev, vq, free_head, NULL, QVIRTIO_BLK_TIMEOUT_US);
 197     status = readb(req_addr + 528);
 198     g_assert_cmpint(status, ==, 0);
 199
 200     guest_free(alloc, req_addr);
 201
 202     /* Read request */
 203     req.type = VIRTIO_BLK_T_IN;
 204     req.ioprio = 1;
 205     req.sector = 0;
 206     req.data = g_malloc0(512);
 207
 208     req_addr = virtio_blk_request(alloc, dev, &req, 512);
 209
 210     g_free(req.data);
 211
 212     free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
 213     qvirtqueue_add(vq, req_addr + 16, 512, true, true);
 214     qvirtqueue_add(vq, req_addr + 528, 1, true, false);
 215
 216     qvirtqueue_kick(dev, vq, free_head);
 217
 218     qvirtio_wait_used_elem(dev, vq, free_head, NULL, QVIRTIO_BLK_TIMEOUT_US);
 219     status = readb(req_addr + 528);
 220     g_assert_cmpint(status, ==, 0);
 221
 222     data = g_malloc0(512);
 223     memread(req_addr + 16, data, 512);
 224     g_assert_cmpstr(data, ==, "TEST");
 225     g_free(data);
 226
 227     guest_free(alloc, req_addr);
 228
 229     if (features & (1u << VIRTIO_F_ANY_LAYOUT)) {
 230         /* Write and read with 2 descriptor layout */
 231         /* Write request */
 232         req.type = VIRTIO_BLK_T_OUT;
 233         req.ioprio = 1;
 234         req.sector = 1;
 235         req.data = g_malloc0(512);
 236         strcpy(req.data, "TEST");
 237
 238         req_addr = virtio_blk_request(alloc, dev, &req, 512);
 239
 240         g_free(req.data);
 241
 242         free_head = qvirtqueue_add(vq, req_addr, 528, false, true);
 243         qvirtqueue_add(vq, req_addr + 528, 1, true, false);
 244         qvirtqueue_kick(dev, vq, free_head);
 245
 246         qvirtio_wait_used_elem(dev, vq, free_head, NULL,
 247                                QVIRTIO_BLK_TIMEOUT_US);
 248         status = readb(req_addr + 528);
 249         g_assert_cmpint(status, ==, 0);
 250
 251         guest_free(alloc, req_addr);
 252
 253         /* Read request */
 254         req.type = VIRTIO_BLK_T_IN;
 255         req.ioprio = 1;
 256         req.sector = 1;
 257         req.data = g_malloc0(512);
 258
 259         req_addr = virtio_blk_request(alloc, dev, &req, 512);
 260
 261         g_free(req.data);
 262
 263         free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
 264         qvirtqueue_add(vq, req_addr + 16, 513, true, false);
 265
 266         qvirtqueue_kick(dev, vq, free_head);
 267
 268         qvirtio_wait_used_elem(dev, vq, free_head, NULL,
 269                                QVIRTIO_BLK_TIMEOUT_US);
 270         status = readb(req_addr + 528);
 271         g_assert_cmpint(status, ==, 0);
 272
 273         data = g_malloc0(512);
 274         memread(req_addr + 16, data, 512);
 275         g_assert_cmpstr(data, ==, "TEST");
 276         g_free(data);
 277
 278         guest_free(alloc, req_addr);
 279     }
 280 }
 281
 282 static void pci_basic(void)
 283 {
 284     QVirtioPCIDevice *dev;
 285     QOSState *qs;
 286     QVirtQueuePCI *vqpci;
 287
 288     qs = pci_test_start();
 289     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 290
 291     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 292
 293     test_basic(&dev->vdev, qs->alloc, &vqpci->vq);
 294
 295     /* End test */
 296     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 297     qvirtio_pci_device_disable(dev);
 298     qvirtio_pci_device_free(dev);
 299     qtest_shutdown(qs);
 300 }
 301
 302 static void pci_indirect(void)
 303 {
 304     QVirtioPCIDevice *dev;
 305     QVirtQueuePCI *vqpci;
 306     QOSState *qs;
 307     QVirtioBlkReq req;
 308     QVRingIndirectDesc *indirect;
 309     uint64_t req_addr;
 310     uint64_t capacity;
 311     uint32_t features;
 312     uint32_t free_head;
 313     uint8_t status;
 314     char *data;
 315
 316     qs = pci_test_start();
 317
 318     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 319
 320     capacity = qvirtio_config_readq(&dev->vdev, 0);
 321     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 322
 323     features = qvirtio_get_features(&dev->vdev);
 324     g_assert_cmphex(features & (1u << VIRTIO_RING_F_INDIRECT_DESC), !=, 0);
 325     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 326                             (1u << VIRTIO_RING_F_EVENT_IDX) |
 327                             (1u << VIRTIO_BLK_F_SCSI));
 328     qvirtio_set_features(&dev->vdev, features);
 329
 330     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 331     qvirtio_set_driver_ok(&dev->vdev);
 332
 333     /* Write request */
 334     req.type = VIRTIO_BLK_T_OUT;
 335     req.ioprio = 1;
 336     req.sector = 0;
 337     req.data = g_malloc0(512);
 338     strcpy(req.data, "TEST");
 339
 340     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 341
 342     g_free(req.data);
 343
 344     indirect = qvring_indirect_desc_setup(&dev->vdev, qs->alloc, 2);
 345     qvring_indirect_desc_add(indirect, req_addr, 528, false);
 346     qvring_indirect_desc_add(indirect, req_addr + 528, 1, true);
 347     free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
 348     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 349
 350     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 351                            QVIRTIO_BLK_TIMEOUT_US);
 352     status = readb(req_addr + 528);
 353     g_assert_cmpint(status, ==, 0);
 354
 355     g_free(indirect);
 356     guest_free(qs->alloc, req_addr);
 357
 358     /* Read request */
 359     req.type = VIRTIO_BLK_T_IN;
 360     req.ioprio = 1;
 361     req.sector = 0;
 362     req.data = g_malloc0(512);
 363     strcpy(req.data, "TEST");
 364
 365     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 366
 367     g_free(req.data);
 368
 369     indirect = qvring_indirect_desc_setup(&dev->vdev, qs->alloc, 2);
 370     qvring_indirect_desc_add(indirect, req_addr, 16, false);
 371     qvring_indirect_desc_add(indirect, req_addr + 16, 513, true);
 372     free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
 373     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 374
 375     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 376                            QVIRTIO_BLK_TIMEOUT_US);
 377     status = readb(req_addr + 528);
 378     g_assert_cmpint(status, ==, 0);
 379
 380     data = g_malloc0(512);
 381     memread(req_addr + 16, data, 512);
 382     g_assert_cmpstr(data, ==, "TEST");
 383     g_free(data);
 384
 385     g_free(indirect);
 386     guest_free(qs->alloc, req_addr);
 387
 388     /* End test */
 389     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 390     qvirtio_pci_device_disable(dev);
 391     qvirtio_pci_device_free(dev);
 392     qtest_shutdown(qs);
 393 }
 394
 395 static void pci_config(void)
 396 {
 397     QVirtioPCIDevice *dev;
 398     QOSState *qs;
 399     int n_size = TEST_IMAGE_SIZE / 2;
 400     uint64_t capacity;
 401
 402     qs = pci_test_start();
 403
 404     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 405
 406     capacity = qvirtio_config_readq(&dev->vdev, 0);
 407     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 408
 409     qvirtio_set_driver_ok(&dev->vdev);
 410
 411     qmp_discard_response("{ 'execute': 'block_resize', "
 412                          " 'arguments': { 'device': 'drive0', "
 413                          " 'size': %d } }", n_size);
 414     qvirtio_wait_config_isr(&dev->vdev, QVIRTIO_BLK_TIMEOUT_US);
 415
 416     capacity = qvirtio_config_readq(&dev->vdev, 0);
 417     g_assert_cmpint(capacity, ==, n_size / 512);
 418
 419     qvirtio_pci_device_disable(dev);
 420     qvirtio_pci_device_free(dev);
 421
 422     qtest_shutdown(qs);
 423 }
 424
 425 static void pci_msix(void)
 426 {
 427     QVirtioPCIDevice *dev;
 428     QOSState *qs;
 429     QVirtQueuePCI *vqpci;
 430     QVirtioBlkReq req;
 431     int n_size = TEST_IMAGE_SIZE / 2;
 432     uint64_t req_addr;
 433     uint64_t capacity;
 434     uint32_t features;
 435     uint32_t free_head;
 436     uint8_t status;
 437     char *data;
 438
 439     qs = pci_test_start();
 440
 441     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 442     qpci_msix_enable(dev->pdev);
 443
 444     qvirtio_pci_set_msix_configuration_vector(dev, qs->alloc, 0);
 445
 446     capacity = qvirtio_config_readq(&dev->vdev, 0);
 447     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 448
 449     features = qvirtio_get_features(&dev->vdev);
 450     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 451                             (1u << VIRTIO_RING_F_INDIRECT_DESC) |
 452                             (1u << VIRTIO_RING_F_EVENT_IDX) |
 453                             (1u << VIRTIO_BLK_F_SCSI));
 454     qvirtio_set_features(&dev->vdev, features);
 455
 456     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 457     qvirtqueue_pci_msix_setup(dev, vqpci, qs->alloc, 1);
 458
 459     qvirtio_set_driver_ok(&dev->vdev);
 460
 461     qmp_discard_response("{ 'execute': 'block_resize', "
 462                          " 'arguments': { 'device': 'drive0', "
 463                          " 'size': %d } }", n_size);
 464
 465     qvirtio_wait_config_isr(&dev->vdev, QVIRTIO_BLK_TIMEOUT_US);
 466
 467     capacity = qvirtio_config_readq(&dev->vdev, 0);
 468     g_assert_cmpint(capacity, ==, n_size / 512);
 469
 470     /* Write request */
 471     req.type = VIRTIO_BLK_T_OUT;
 472     req.ioprio = 1;
 473     req.sector = 0;
 474     req.data = g_malloc0(512);
 475     strcpy(req.data, "TEST");
 476
 477     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 478
 479     g_free(req.data);
 480
 481     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 482     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
 483     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 484     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 485
 486     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 487                            QVIRTIO_BLK_TIMEOUT_US);
 488
 489     status = readb(req_addr + 528);
 490     g_assert_cmpint(status, ==, 0);
 491
 492     guest_free(qs->alloc, req_addr);
 493
 494     /* Read request */
 495     req.type = VIRTIO_BLK_T_IN;
 496     req.ioprio = 1;
 497     req.sector = 0;
 498     req.data = g_malloc0(512);
 499
 500     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 501
 502     g_free(req.data);
 503
 504     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 505     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, true, true);
 506     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 507
 508     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 509
 510
 511     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 512                            QVIRTIO_BLK_TIMEOUT_US);
 513
 514     status = readb(req_addr + 528);
 515     g_assert_cmpint(status, ==, 0);
 516
 517     data = g_malloc0(512);
 518     memread(req_addr + 16, data, 512);
 519     g_assert_cmpstr(data, ==, "TEST");
 520     g_free(data);
 521
 522     guest_free(qs->alloc, req_addr);
 523
 524     /* End test */
 525     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 526     qpci_msix_disable(dev->pdev);
 527     qvirtio_pci_device_disable(dev);
 528     qvirtio_pci_device_free(dev);
 529     qtest_shutdown(qs);
 530 }
 531
 532 static void pci_idx(void)
 533 {
 534     QVirtioPCIDevice *dev;
 535     QOSState *qs;
 536     QVirtQueuePCI *vqpci;
 537     QVirtioBlkReq req;
 538     uint64_t req_addr;
 539     uint64_t capacity;
 540     uint32_t features;
 541     uint32_t free_head;
 542     uint32_t write_head;
 543     uint32_t desc_idx;
 544     uint8_t status;
 545     char *data;
 546
 547     qs = pci_test_start();
 548
 549     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 550     qpci_msix_enable(dev->pdev);
 551
 552     qvirtio_pci_set_msix_configuration_vector(dev, qs->alloc, 0);
 553
 554     capacity = qvirtio_config_readq(&dev->vdev, 0);
 555     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 556
 557     features = qvirtio_get_features(&dev->vdev);
 558     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 559                             (1u << VIRTIO_RING_F_INDIRECT_DESC) |
 560                             (1u << VIRTIO_F_NOTIFY_ON_EMPTY) |
 561                             (1u << VIRTIO_BLK_F_SCSI));
 562     qvirtio_set_features(&dev->vdev, features);
 563
 564     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 565     qvirtqueue_pci_msix_setup(dev, vqpci, qs->alloc, 1);
 566
 567     qvirtio_set_driver_ok(&dev->vdev);
 568
 569     /* Write request */
 570     req.type = VIRTIO_BLK_T_OUT;
 571     req.ioprio = 1;
 572     req.sector = 0;
 573     req.data = g_malloc0(512);
 574     strcpy(req.data, "TEST");
 575
 576     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 577
 578     g_free(req.data);
 579
 580     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 581     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
 582     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 583     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 584
 585     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 586                            QVIRTIO_BLK_TIMEOUT_US);
 587
 588     /* Write request */
 589     req.type = VIRTIO_BLK_T_OUT;
 590     req.ioprio = 1;
 591     req.sector = 1;
 592     req.data = g_malloc0(512);
 593     strcpy(req.data, "TEST");
 594
 595     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 596
 597     g_free(req.data);
 598
 599     /* Notify after processing the third request */
 600     qvirtqueue_set_used_event(&vqpci->vq, 2);
 601     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 602     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
 603     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 604     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 605     write_head = free_head;
 606
 607     /* No notification expected */
 608     status = qvirtio_wait_status_byte_no_isr(&dev->vdev,
 609                                              &vqpci->vq, req_addr + 528,
 610                                              QVIRTIO_BLK_TIMEOUT_US);
 611     g_assert_cmpint(status, ==, 0);
 612
 613     guest_free(qs->alloc, req_addr);
 614
 615     /* Read request */
 616     req.type = VIRTIO_BLK_T_IN;
 617     req.ioprio = 1;
 618     req.sector = 1;
 619     req.data = g_malloc0(512);
 620
 621     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 622
 623     g_free(req.data);
 624
 625     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 626     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, true, true);
 627     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 628
 629     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 630
 631     /* We get just one notification for both requests */
 632     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, write_head, NULL,
 633                            QVIRTIO_BLK_TIMEOUT_US);
 634     g_assert(qvirtqueue_get_buf(&vqpci->vq, &desc_idx, NULL));
 635     g_assert_cmpint(desc_idx, ==, free_head);
 636
 637     status = readb(req_addr + 528);
 638     g_assert_cmpint(status, ==, 0);
 639
 640     data = g_malloc0(512);
 641     memread(req_addr + 16, data, 512);
 642     g_assert_cmpstr(data, ==, "TEST");
 643     g_free(data);
 644
 645     guest_free(qs->alloc, req_addr);
 646
 647     /* End test */
 648     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 649     qpci_msix_disable(dev->pdev);
 650     qvirtio_pci_device_disable(dev);
 651     qvirtio_pci_device_free(dev);
 652     qtest_shutdown(qs);
 653 }
 654
 655 static void pci_hotplug(void)
 656 {
 657     QVirtioPCIDevice *dev;
 658     QOSState *qs;
 659     const char *arch = qtest_get_arch();
 660
 661     qs = pci_test_start();
 662
 663     /* plug secondary disk */
 664     qpci_plug_device_test("virtio-blk-pci", "drv1", PCI_SLOT_HP,
 665                           "'drive': 'drive1'");
 666
 667     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT_HP);
 668     g_assert(dev);
 669     qvirtio_pci_device_disable(dev);
 670     qvirtio_pci_device_free(dev);
 671
 672     /* unplug secondary disk */
 673     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 674         qpci_unplug_acpi_device_test("drv1", PCI_SLOT_HP);
 675     }
 676     qtest_shutdown(qs);
 677 }
 678
 679 /*
 680  * Check that setting the vring addr on a non-existent virtqueue does
 681  * not crash.
 682  */
 683 static void test_nonexistent_virtqueue(void)
 684 {
 685     QPCIBar bar0;
 686     QOSState *qs;
 687     QPCIDevice *dev;
 688
 689     qs = pci_test_start();
 690     dev = qpci_device_find(qs->pcibus, QPCI_DEVFN(4, 0));
 691     g_assert(dev != NULL);
 692
 693     qpci_device_enable(dev);
 694     bar0 = qpci_iomap(dev, 0, NULL);
 695
 696     qpci_io_writeb(dev, bar0, VIRTIO_PCI_QUEUE_SEL, 2);
 697     qpci_io_writel(dev, bar0, VIRTIO_PCI_QUEUE_PFN, 1);
 698
 699     g_free(dev);
 700     qtest_shutdown(qs);
 701 }
 702
 703 static void mmio_basic(void)
 704 {
 705     QVirtioMMIODevice *dev;
 706     QVirtQueue *vq;
 707     QGuestAllocator *alloc;
 708     int n_size = TEST_IMAGE_SIZE / 2;
 709     uint64_t capacity;
 710
 711     arm_test_start();
 712
 713     dev = qvirtio_mmio_init_device(MMIO_DEV_BASE_ADDR, MMIO_PAGE_SIZE);
 714     g_assert(dev != NULL);
 715     g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_BLOCK);
 716
 717     qvirtio_reset(&dev->vdev);
 718     qvirtio_set_acknowledge(&dev->vdev);
 719     qvirtio_set_driver(&dev->vdev);
 720
 721     alloc = generic_alloc_init(MMIO_RAM_ADDR, MMIO_RAM_SIZE, MMIO_PAGE_SIZE);
 722     vq = qvirtqueue_setup(&dev->vdev, alloc, 0);
 723
 724     test_basic(&dev->vdev, alloc, vq);
 725
 726     qmp_discard_response("{ 'execute': 'block_resize', "
 727                          " 'arguments': { 'device': 'drive0', "
 728                          " 'size': %d } }", n_size);
 729
 730     qvirtio_wait_queue_isr(&dev->vdev, vq, QVIRTIO_BLK_TIMEOUT_US);
 731
 732     capacity = qvirtio_config_readq(&dev->vdev, 0);
 733     g_assert_cmpint(capacity, ==, n_size / 512);
 734
 735     /* End test */
 736     qvirtqueue_cleanup(dev->vdev.bus, vq, alloc);
 737     g_free(dev);
 738     generic_alloc_uninit(alloc);
 739     test_end();
 740 }
 741
 742 int main(int argc, char **argv)
 743 {
 744     const char *arch = qtest_get_arch();
 745
 746     g_test_init(&argc, &argv, NULL);
 747
 748     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0 ||
 749         strcmp(arch, "ppc64") == 0) {
 750         qtest_add_func("/virtio/blk/pci/basic", pci_basic);
 751         qtest_add_func("/virtio/blk/pci/indirect", pci_indirect);
 752         qtest_add_func("/virtio/blk/pci/config", pci_config);
 753         qtest_add_func("/virtio/blk/pci/nxvirtq", test_nonexistent_virtqueue);
 754         if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 755             qtest_add_func("/virtio/blk/pci/msix", pci_msix);
 756             qtest_add_func("/virtio/blk/pci/idx", pci_idx);
 757         }
 758         qtest_add_func("/virtio/blk/pci/hotplug", pci_hotplug);
 759     } else if (strcmp(arch, "arm") == 0) {
 760         qtest_add_func("/virtio/blk/mmio/basic", mmio_basic);
 761     }
 762
 763     return g_test_run();
 764 }