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, 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, 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, QVIRTIO_BLK_TIMEOUT_US);
 247         status = readb(req_addr + 528);
 248         g_assert_cmpint(status, ==, 0);
 249
 250         guest_free(alloc, req_addr);
 251
 252         /* Read request */
 253         req.type = VIRTIO_BLK_T_IN;
 254         req.ioprio = 1;
 255         req.sector = 1;
 256         req.data = g_malloc0(512);
 257
 258         req_addr = virtio_blk_request(alloc, dev, &req, 512);
 259
 260         g_free(req.data);
 261
 262         free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
 263         qvirtqueue_add(vq, req_addr + 16, 513, true, false);
 264
 265         qvirtqueue_kick(dev, vq, free_head);
 266
 267         qvirtio_wait_used_elem(dev, vq, free_head, QVIRTIO_BLK_TIMEOUT_US);
 268         status = readb(req_addr + 528);
 269         g_assert_cmpint(status, ==, 0);
 270
 271         data = g_malloc0(512);
 272         memread(req_addr + 16, data, 512);
 273         g_assert_cmpstr(data, ==, "TEST");
 274         g_free(data);
 275
 276         guest_free(alloc, req_addr);
 277     }
 278 }
 279
 280 static void pci_basic(void)
 281 {
 282     QVirtioPCIDevice *dev;
 283     QOSState *qs;
 284     QVirtQueuePCI *vqpci;
 285
 286     qs = pci_test_start();
 287     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 288
 289     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 290
 291     test_basic(&dev->vdev, qs->alloc, &vqpci->vq);
 292
 293     /* End test */
 294     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 295     qvirtio_pci_device_disable(dev);
 296     qvirtio_pci_device_free(dev);
 297     qtest_shutdown(qs);
 298 }
 299
 300 static void pci_indirect(void)
 301 {
 302     QVirtioPCIDevice *dev;
 303     QVirtQueuePCI *vqpci;
 304     QOSState *qs;
 305     QVirtioBlkReq req;
 306     QVRingIndirectDesc *indirect;
 307     uint64_t req_addr;
 308     uint64_t capacity;
 309     uint32_t features;
 310     uint32_t free_head;
 311     uint8_t status;
 312     char *data;
 313
 314     qs = pci_test_start();
 315
 316     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 317
 318     capacity = qvirtio_config_readq(&dev->vdev, 0);
 319     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 320
 321     features = qvirtio_get_features(&dev->vdev);
 322     g_assert_cmphex(features & (1u << VIRTIO_RING_F_INDIRECT_DESC), !=, 0);
 323     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 324                             (1u << VIRTIO_RING_F_EVENT_IDX) |
 325                             (1u << VIRTIO_BLK_F_SCSI));
 326     qvirtio_set_features(&dev->vdev, features);
 327
 328     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 329     qvirtio_set_driver_ok(&dev->vdev);
 330
 331     /* Write request */
 332     req.type = VIRTIO_BLK_T_OUT;
 333     req.ioprio = 1;
 334     req.sector = 0;
 335     req.data = g_malloc0(512);
 336     strcpy(req.data, "TEST");
 337
 338     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 339
 340     g_free(req.data);
 341
 342     indirect = qvring_indirect_desc_setup(&dev->vdev, qs->alloc, 2);
 343     qvring_indirect_desc_add(indirect, req_addr, 528, false);
 344     qvring_indirect_desc_add(indirect, req_addr + 528, 1, true);
 345     free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
 346     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 347
 348     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head,
 349                            QVIRTIO_BLK_TIMEOUT_US);
 350     status = readb(req_addr + 528);
 351     g_assert_cmpint(status, ==, 0);
 352
 353     g_free(indirect);
 354     guest_free(qs->alloc, req_addr);
 355
 356     /* Read request */
 357     req.type = VIRTIO_BLK_T_IN;
 358     req.ioprio = 1;
 359     req.sector = 0;
 360     req.data = g_malloc0(512);
 361     strcpy(req.data, "TEST");
 362
 363     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 364
 365     g_free(req.data);
 366
 367     indirect = qvring_indirect_desc_setup(&dev->vdev, qs->alloc, 2);
 368     qvring_indirect_desc_add(indirect, req_addr, 16, false);
 369     qvring_indirect_desc_add(indirect, req_addr + 16, 513, true);
 370     free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
 371     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 372
 373     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head,
 374                            QVIRTIO_BLK_TIMEOUT_US);
 375     status = readb(req_addr + 528);
 376     g_assert_cmpint(status, ==, 0);
 377
 378     data = g_malloc0(512);
 379     memread(req_addr + 16, data, 512);
 380     g_assert_cmpstr(data, ==, "TEST");
 381     g_free(data);
 382
 383     g_free(indirect);
 384     guest_free(qs->alloc, req_addr);
 385
 386     /* End test */
 387     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 388     qvirtio_pci_device_disable(dev);
 389     qvirtio_pci_device_free(dev);
 390     qtest_shutdown(qs);
 391 }
 392
 393 static void pci_config(void)
 394 {
 395     QVirtioPCIDevice *dev;
 396     QOSState *qs;
 397     int n_size = TEST_IMAGE_SIZE / 2;
 398     uint64_t capacity;
 399
 400     qs = pci_test_start();
 401
 402     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 403
 404     capacity = qvirtio_config_readq(&dev->vdev, 0);
 405     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 406
 407     qvirtio_set_driver_ok(&dev->vdev);
 408
 409     qmp_discard_response("{ 'execute': 'block_resize', "
 410                          " 'arguments': { 'device': 'drive0', "
 411                          " 'size': %d } }", n_size);
 412     qvirtio_wait_config_isr(&dev->vdev, QVIRTIO_BLK_TIMEOUT_US);
 413
 414     capacity = qvirtio_config_readq(&dev->vdev, 0);
 415     g_assert_cmpint(capacity, ==, n_size / 512);
 416
 417     qvirtio_pci_device_disable(dev);
 418     qvirtio_pci_device_free(dev);
 419
 420     qtest_shutdown(qs);
 421 }
 422
 423 static void pci_msix(void)
 424 {
 425     QVirtioPCIDevice *dev;
 426     QOSState *qs;
 427     QVirtQueuePCI *vqpci;
 428     QVirtioBlkReq req;
 429     int n_size = TEST_IMAGE_SIZE / 2;
 430     uint64_t req_addr;
 431     uint64_t capacity;
 432     uint32_t features;
 433     uint32_t free_head;
 434     uint8_t status;
 435     char *data;
 436
 437     qs = pci_test_start();
 438
 439     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 440     qpci_msix_enable(dev->pdev);
 441
 442     qvirtio_pci_set_msix_configuration_vector(dev, qs->alloc, 0);
 443
 444     capacity = qvirtio_config_readq(&dev->vdev, 0);
 445     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 446
 447     features = qvirtio_get_features(&dev->vdev);
 448     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 449                             (1u << VIRTIO_RING_F_INDIRECT_DESC) |
 450                             (1u << VIRTIO_RING_F_EVENT_IDX) |
 451                             (1u << VIRTIO_BLK_F_SCSI));
 452     qvirtio_set_features(&dev->vdev, features);
 453
 454     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 455     qvirtqueue_pci_msix_setup(dev, vqpci, qs->alloc, 1);
 456
 457     qvirtio_set_driver_ok(&dev->vdev);
 458
 459     qmp_discard_response("{ 'execute': 'block_resize', "
 460                          " 'arguments': { 'device': 'drive0', "
 461                          " 'size': %d } }", n_size);
 462
 463     qvirtio_wait_config_isr(&dev->vdev, QVIRTIO_BLK_TIMEOUT_US);
 464
 465     capacity = qvirtio_config_readq(&dev->vdev, 0);
 466     g_assert_cmpint(capacity, ==, n_size / 512);
 467
 468     /* Write request */
 469     req.type = VIRTIO_BLK_T_OUT;
 470     req.ioprio = 1;
 471     req.sector = 0;
 472     req.data = g_malloc0(512);
 473     strcpy(req.data, "TEST");
 474
 475     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 476
 477     g_free(req.data);
 478
 479     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 480     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
 481     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 482     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 483
 484     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head,
 485                            QVIRTIO_BLK_TIMEOUT_US);
 486
 487     status = readb(req_addr + 528);
 488     g_assert_cmpint(status, ==, 0);
 489
 490     guest_free(qs->alloc, req_addr);
 491
 492     /* Read request */
 493     req.type = VIRTIO_BLK_T_IN;
 494     req.ioprio = 1;
 495     req.sector = 0;
 496     req.data = g_malloc0(512);
 497
 498     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 499
 500     g_free(req.data);
 501
 502     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 503     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, true, true);
 504     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 505
 506     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 507
 508
 509     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head,
 510                            QVIRTIO_BLK_TIMEOUT_US);
 511
 512     status = readb(req_addr + 528);
 513     g_assert_cmpint(status, ==, 0);
 514
 515     data = g_malloc0(512);
 516     memread(req_addr + 16, data, 512);
 517     g_assert_cmpstr(data, ==, "TEST");
 518     g_free(data);
 519
 520     guest_free(qs->alloc, req_addr);
 521
 522     /* End test */
 523     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 524     qpci_msix_disable(dev->pdev);
 525     qvirtio_pci_device_disable(dev);
 526     qvirtio_pci_device_free(dev);
 527     qtest_shutdown(qs);
 528 }
 529
 530 static void pci_idx(void)
 531 {
 532     QVirtioPCIDevice *dev;
 533     QOSState *qs;
 534     QVirtQueuePCI *vqpci;
 535     QVirtioBlkReq req;
 536     uint64_t req_addr;
 537     uint64_t capacity;
 538     uint32_t features;
 539     uint32_t free_head;
 540     uint32_t write_head;
 541     uint32_t desc_idx;
 542     uint8_t status;
 543     char *data;
 544
 545     qs = pci_test_start();
 546
 547     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 548     qpci_msix_enable(dev->pdev);
 549
 550     qvirtio_pci_set_msix_configuration_vector(dev, qs->alloc, 0);
 551
 552     capacity = qvirtio_config_readq(&dev->vdev, 0);
 553     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 554
 555     features = qvirtio_get_features(&dev->vdev);
 556     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 557                             (1u << VIRTIO_RING_F_INDIRECT_DESC) |
 558                             (1u << VIRTIO_F_NOTIFY_ON_EMPTY) |
 559                             (1u << VIRTIO_BLK_F_SCSI));
 560     qvirtio_set_features(&dev->vdev, features);
 561
 562     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 563     qvirtqueue_pci_msix_setup(dev, vqpci, qs->alloc, 1);
 564
 565     qvirtio_set_driver_ok(&dev->vdev);
 566
 567     /* Write request */
 568     req.type = VIRTIO_BLK_T_OUT;
 569     req.ioprio = 1;
 570     req.sector = 0;
 571     req.data = g_malloc0(512);
 572     strcpy(req.data, "TEST");
 573
 574     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 575
 576     g_free(req.data);
 577
 578     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 579     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
 580     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 581     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 582
 583     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head,
 584                            QVIRTIO_BLK_TIMEOUT_US);
 585
 586     /* Write request */
 587     req.type = VIRTIO_BLK_T_OUT;
 588     req.ioprio = 1;
 589     req.sector = 1;
 590     req.data = g_malloc0(512);
 591     strcpy(req.data, "TEST");
 592
 593     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 594
 595     g_free(req.data);
 596
 597     /* Notify after processing the third request */
 598     qvirtqueue_set_used_event(&vqpci->vq, 2);
 599     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 600     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
 601     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 602     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 603     write_head = free_head;
 604
 605     /* No notification expected */
 606     status = qvirtio_wait_status_byte_no_isr(&dev->vdev,
 607                                              &vqpci->vq, req_addr + 528,
 608                                              QVIRTIO_BLK_TIMEOUT_US);
 609     g_assert_cmpint(status, ==, 0);
 610
 611     guest_free(qs->alloc, req_addr);
 612
 613     /* Read request */
 614     req.type = VIRTIO_BLK_T_IN;
 615     req.ioprio = 1;
 616     req.sector = 1;
 617     req.data = g_malloc0(512);
 618
 619     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 620
 621     g_free(req.data);
 622
 623     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 624     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, true, true);
 625     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 626
 627     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 628
 629     /* We get just one notification for both requests */
 630     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, write_head,
 631                            QVIRTIO_BLK_TIMEOUT_US);
 632     g_assert(qvirtqueue_get_buf(&vqpci->vq, &desc_idx));
 633     g_assert_cmpint(desc_idx, ==, free_head);
 634
 635     status = readb(req_addr + 528);
 636     g_assert_cmpint(status, ==, 0);
 637
 638     data = g_malloc0(512);
 639     memread(req_addr + 16, data, 512);
 640     g_assert_cmpstr(data, ==, "TEST");
 641     g_free(data);
 642
 643     guest_free(qs->alloc, req_addr);
 644
 645     /* End test */
 646     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 647     qpci_msix_disable(dev->pdev);
 648     qvirtio_pci_device_disable(dev);
 649     qvirtio_pci_device_free(dev);
 650     qtest_shutdown(qs);
 651 }
 652
 653 static void pci_hotplug(void)
 654 {
 655     QVirtioPCIDevice *dev;
 656     QOSState *qs;
 657     const char *arch = qtest_get_arch();
 658
 659     qs = pci_test_start();
 660
 661     /* plug secondary disk */
 662     qpci_plug_device_test("virtio-blk-pci", "drv1", PCI_SLOT_HP,
 663                           "'drive': 'drive1'");
 664
 665     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT_HP);
 666     g_assert(dev);
 667     qvirtio_pci_device_disable(dev);
 668     qvirtio_pci_device_free(dev);
 669
 670     /* unplug secondary disk */
 671     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 672         qpci_unplug_acpi_device_test("drv1", PCI_SLOT_HP);
 673     }
 674     qtest_shutdown(qs);
 675 }
 676
 677 /*
 678  * Check that setting the vring addr on a non-existent virtqueue does
 679  * not crash.
 680  */
 681 static void test_nonexistent_virtqueue(void)
 682 {
 683     QPCIBar bar0;
 684     QOSState *qs;
 685     QPCIDevice *dev;
 686
 687     qs = pci_test_start();
 688     dev = qpci_device_find(qs->pcibus, QPCI_DEVFN(4, 0));
 689     g_assert(dev != NULL);
 690
 691     qpci_device_enable(dev);
 692     bar0 = qpci_iomap(dev, 0, NULL);
 693
 694     qpci_io_writeb(dev, bar0, VIRTIO_PCI_QUEUE_SEL, 2);
 695     qpci_io_writel(dev, bar0, VIRTIO_PCI_QUEUE_PFN, 1);
 696
 697     g_free(dev);
 698     qtest_shutdown(qs);
 699 }
 700
 701 static void mmio_basic(void)
 702 {
 703     QVirtioMMIODevice *dev;
 704     QVirtQueue *vq;
 705     QGuestAllocator *alloc;
 706     int n_size = TEST_IMAGE_SIZE / 2;
 707     uint64_t capacity;
 708
 709     arm_test_start();
 710
 711     dev = qvirtio_mmio_init_device(MMIO_DEV_BASE_ADDR, MMIO_PAGE_SIZE);
 712     g_assert(dev != NULL);
 713     g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_BLOCK);
 714
 715     qvirtio_reset(&dev->vdev);
 716     qvirtio_set_acknowledge(&dev->vdev);
 717     qvirtio_set_driver(&dev->vdev);
 718
 719     alloc = generic_alloc_init(MMIO_RAM_ADDR, MMIO_RAM_SIZE, MMIO_PAGE_SIZE);
 720     vq = qvirtqueue_setup(&dev->vdev, alloc, 0);
 721
 722     test_basic(&dev->vdev, alloc, vq);
 723
 724     qmp_discard_response("{ 'execute': 'block_resize', "
 725                          " 'arguments': { 'device': 'drive0', "
 726                          " 'size': %d } }", n_size);
 727
 728     qvirtio_wait_queue_isr(&dev->vdev, vq, QVIRTIO_BLK_TIMEOUT_US);
 729
 730     capacity = qvirtio_config_readq(&dev->vdev, 0);
 731     g_assert_cmpint(capacity, ==, n_size / 512);
 732
 733     /* End test */
 734     qvirtqueue_cleanup(dev->vdev.bus, vq, alloc);
 735     g_free(dev);
 736     generic_alloc_uninit(alloc);
 737     test_end();
 738 }
 739
 740 int main(int argc, char **argv)
 741 {
 742     const char *arch = qtest_get_arch();
 743
 744     g_test_init(&argc, &argv, NULL);
 745
 746     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0 ||
 747         strcmp(arch, "ppc64") == 0) {
 748         qtest_add_func("/virtio/blk/pci/basic", pci_basic);
 749         qtest_add_func("/virtio/blk/pci/indirect", pci_indirect);
 750         qtest_add_func("/virtio/blk/pci/config", pci_config);
 751         qtest_add_func("/virtio/blk/pci/nxvirtq", test_nonexistent_virtqueue);
 752         if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 753             qtest_add_func("/virtio/blk/pci/msix", pci_msix);
 754             qtest_add_func("/virtio/blk/pci/idx", pci_idx);
 755         }
 756         qtest_add_func("/virtio/blk/pci/hotplug", pci_hotplug);
 757     } else if (strcmp(arch, "arm") == 0) {
 758         qtest_add_func("/virtio/blk/mmio/basic", mmio_basic);
 759     }
 760
 761     return g_test_run();
 762 }