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     global_qtest = qs->qts;
  81     unlink(tmp_path);
  82     g_free(tmp_path);
  83     return qs;
  84 }
  85
  86 static void arm_test_start(void)
  87 {
  88     char *tmp_path;
  89
  90     tmp_path = drive_create();
  91
  92     global_qtest = qtest_startf("-machine virt "
  93                                 "-drive if=none,id=drive0,file=%s,format=raw "
  94                                 "-device virtio-blk-device,drive=drive0",
  95                                 tmp_path);
  96     unlink(tmp_path);
  97     g_free(tmp_path);
  98 }
  99
 100 static void test_end(void)
 101 {
 102     qtest_end();
 103 }
 104
 105 static QVirtioPCIDevice *virtio_blk_pci_init(QPCIBus *bus, int slot)
 106 {
 107     QVirtioPCIDevice *dev;
 108
 109     dev = qvirtio_pci_device_find_slot(bus, VIRTIO_ID_BLOCK, slot);
 110     g_assert(dev != NULL);
 111     g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_BLOCK);
 112     g_assert_cmphex(dev->pdev->devfn, ==, ((slot << 3) | PCI_FN));
 113
 114     qvirtio_pci_device_enable(dev);
 115     qvirtio_reset(&dev->vdev);
 116     qvirtio_set_acknowledge(&dev->vdev);
 117     qvirtio_set_driver(&dev->vdev);
 118
 119     return dev;
 120 }
 121
 122 static inline void virtio_blk_fix_request(QVirtioDevice *d, QVirtioBlkReq *req)
 123 {
 124 #ifdef HOST_WORDS_BIGENDIAN
 125     const bool host_is_big_endian = true;
 126 #else
 127     const bool host_is_big_endian = false;
 128 #endif
 129
 130     if (qvirtio_is_big_endian(d) != host_is_big_endian) {
 131         req->type = bswap32(req->type);
 132         req->ioprio = bswap32(req->ioprio);
 133         req->sector = bswap64(req->sector);
 134     }
 135 }
 136
 137 static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioDevice *d,
 138                                    QVirtioBlkReq *req, uint64_t data_size)
 139 {
 140     uint64_t addr;
 141     uint8_t status = 0xFF;
 142
 143     g_assert_cmpuint(data_size % 512, ==, 0);
 144     addr = guest_alloc(alloc, sizeof(*req) + data_size);
 145
 146     virtio_blk_fix_request(d, req);
 147
 148     memwrite(addr, req, 16);
 149     memwrite(addr + 16, req->data, data_size);
 150     memwrite(addr + 16 + data_size, &status, sizeof(status));
 151
 152     return addr;
 153 }
 154
 155 static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
 156                        QVirtQueue *vq)
 157 {
 158     QVirtioBlkReq req;
 159     uint64_t req_addr;
 160     uint64_t capacity;
 161     uint32_t features;
 162     uint32_t free_head;
 163     uint8_t status;
 164     char *data;
 165
 166     capacity = qvirtio_config_readq(dev, 0);
 167
 168     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 169
 170     features = qvirtio_get_features(dev);
 171     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 172                     (1u << VIRTIO_RING_F_INDIRECT_DESC) |
 173                     (1u << VIRTIO_RING_F_EVENT_IDX) |
 174                     (1u << VIRTIO_BLK_F_SCSI));
 175     qvirtio_set_features(dev, features);
 176
 177     qvirtio_set_driver_ok(dev);
 178
 179     /* Write and read with 3 descriptor layout */
 180     /* Write request */
 181     req.type = VIRTIO_BLK_T_OUT;
 182     req.ioprio = 1;
 183     req.sector = 0;
 184     req.data = g_malloc0(512);
 185     strcpy(req.data, "TEST");
 186
 187     req_addr = virtio_blk_request(alloc, dev, &req, 512);
 188
 189     g_free(req.data);
 190
 191     free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
 192     qvirtqueue_add(vq, req_addr + 16, 512, false, true);
 193     qvirtqueue_add(vq, req_addr + 528, 1, true, false);
 194
 195     qvirtqueue_kick(dev, vq, free_head);
 196
 197     qvirtio_wait_used_elem(dev, vq, free_head, NULL, QVIRTIO_BLK_TIMEOUT_US);
 198     status = readb(req_addr + 528);
 199     g_assert_cmpint(status, ==, 0);
 200
 201     guest_free(alloc, req_addr);
 202
 203     /* Read request */
 204     req.type = VIRTIO_BLK_T_IN;
 205     req.ioprio = 1;
 206     req.sector = 0;
 207     req.data = g_malloc0(512);
 208
 209     req_addr = virtio_blk_request(alloc, dev, &req, 512);
 210
 211     g_free(req.data);
 212
 213     free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
 214     qvirtqueue_add(vq, req_addr + 16, 512, true, true);
 215     qvirtqueue_add(vq, req_addr + 528, 1, true, false);
 216
 217     qvirtqueue_kick(dev, vq, free_head);
 218
 219     qvirtio_wait_used_elem(dev, vq, free_head, NULL, QVIRTIO_BLK_TIMEOUT_US);
 220     status = readb(req_addr + 528);
 221     g_assert_cmpint(status, ==, 0);
 222
 223     data = g_malloc0(512);
 224     memread(req_addr + 16, data, 512);
 225     g_assert_cmpstr(data, ==, "TEST");
 226     g_free(data);
 227
 228     guest_free(alloc, req_addr);
 229
 230     if (features & (1u << VIRTIO_F_ANY_LAYOUT)) {
 231         /* Write and read with 2 descriptor layout */
 232         /* Write request */
 233         req.type = VIRTIO_BLK_T_OUT;
 234         req.ioprio = 1;
 235         req.sector = 1;
 236         req.data = g_malloc0(512);
 237         strcpy(req.data, "TEST");
 238
 239         req_addr = virtio_blk_request(alloc, dev, &req, 512);
 240
 241         g_free(req.data);
 242
 243         free_head = qvirtqueue_add(vq, req_addr, 528, false, true);
 244         qvirtqueue_add(vq, req_addr + 528, 1, true, false);
 245         qvirtqueue_kick(dev, vq, free_head);
 246
 247         qvirtio_wait_used_elem(dev, vq, free_head, NULL,
 248                                QVIRTIO_BLK_TIMEOUT_US);
 249         status = readb(req_addr + 528);
 250         g_assert_cmpint(status, ==, 0);
 251
 252         guest_free(alloc, req_addr);
 253
 254         /* Read request */
 255         req.type = VIRTIO_BLK_T_IN;
 256         req.ioprio = 1;
 257         req.sector = 1;
 258         req.data = g_malloc0(512);
 259
 260         req_addr = virtio_blk_request(alloc, dev, &req, 512);
 261
 262         g_free(req.data);
 263
 264         free_head = qvirtqueue_add(vq, req_addr, 16, false, true);
 265         qvirtqueue_add(vq, req_addr + 16, 513, true, false);
 266
 267         qvirtqueue_kick(dev, vq, free_head);
 268
 269         qvirtio_wait_used_elem(dev, vq, free_head, NULL,
 270                                QVIRTIO_BLK_TIMEOUT_US);
 271         status = readb(req_addr + 528);
 272         g_assert_cmpint(status, ==, 0);
 273
 274         data = g_malloc0(512);
 275         memread(req_addr + 16, data, 512);
 276         g_assert_cmpstr(data, ==, "TEST");
 277         g_free(data);
 278
 279         guest_free(alloc, req_addr);
 280     }
 281 }
 282
 283 static void pci_basic(void)
 284 {
 285     QVirtioPCIDevice *dev;
 286     QOSState *qs;
 287     QVirtQueuePCI *vqpci;
 288
 289     qs = pci_test_start();
 290     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 291
 292     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 293
 294     test_basic(&dev->vdev, qs->alloc, &vqpci->vq);
 295
 296     /* End test */
 297     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 298     qvirtio_pci_device_disable(dev);
 299     qvirtio_pci_device_free(dev);
 300     qtest_shutdown(qs);
 301 }
 302
 303 static void pci_indirect(void)
 304 {
 305     QVirtioPCIDevice *dev;
 306     QVirtQueuePCI *vqpci;
 307     QOSState *qs;
 308     QVirtioBlkReq req;
 309     QVRingIndirectDesc *indirect;
 310     uint64_t req_addr;
 311     uint64_t capacity;
 312     uint32_t features;
 313     uint32_t free_head;
 314     uint8_t status;
 315     char *data;
 316
 317     qs = pci_test_start();
 318
 319     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 320
 321     capacity = qvirtio_config_readq(&dev->vdev, 0);
 322     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 323
 324     features = qvirtio_get_features(&dev->vdev);
 325     g_assert_cmphex(features & (1u << VIRTIO_RING_F_INDIRECT_DESC), !=, 0);
 326     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 327                             (1u << VIRTIO_RING_F_EVENT_IDX) |
 328                             (1u << VIRTIO_BLK_F_SCSI));
 329     qvirtio_set_features(&dev->vdev, features);
 330
 331     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 332     qvirtio_set_driver_ok(&dev->vdev);
 333
 334     /* Write request */
 335     req.type = VIRTIO_BLK_T_OUT;
 336     req.ioprio = 1;
 337     req.sector = 0;
 338     req.data = g_malloc0(512);
 339     strcpy(req.data, "TEST");
 340
 341     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 342
 343     g_free(req.data);
 344
 345     indirect = qvring_indirect_desc_setup(&dev->vdev, qs->alloc, 2);
 346     qvring_indirect_desc_add(indirect, req_addr, 528, false);
 347     qvring_indirect_desc_add(indirect, req_addr + 528, 1, true);
 348     free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
 349     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 350
 351     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 352                            QVIRTIO_BLK_TIMEOUT_US);
 353     status = readb(req_addr + 528);
 354     g_assert_cmpint(status, ==, 0);
 355
 356     g_free(indirect);
 357     guest_free(qs->alloc, req_addr);
 358
 359     /* Read request */
 360     req.type = VIRTIO_BLK_T_IN;
 361     req.ioprio = 1;
 362     req.sector = 0;
 363     req.data = g_malloc0(512);
 364     strcpy(req.data, "TEST");
 365
 366     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 367
 368     g_free(req.data);
 369
 370     indirect = qvring_indirect_desc_setup(&dev->vdev, qs->alloc, 2);
 371     qvring_indirect_desc_add(indirect, req_addr, 16, false);
 372     qvring_indirect_desc_add(indirect, req_addr + 16, 513, true);
 373     free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect);
 374     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 375
 376     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 377                            QVIRTIO_BLK_TIMEOUT_US);
 378     status = readb(req_addr + 528);
 379     g_assert_cmpint(status, ==, 0);
 380
 381     data = g_malloc0(512);
 382     memread(req_addr + 16, data, 512);
 383     g_assert_cmpstr(data, ==, "TEST");
 384     g_free(data);
 385
 386     g_free(indirect);
 387     guest_free(qs->alloc, req_addr);
 388
 389     /* End test */
 390     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 391     qvirtio_pci_device_disable(dev);
 392     qvirtio_pci_device_free(dev);
 393     qtest_shutdown(qs);
 394 }
 395
 396 static void pci_config(void)
 397 {
 398     QVirtioPCIDevice *dev;
 399     QOSState *qs;
 400     int n_size = TEST_IMAGE_SIZE / 2;
 401     uint64_t capacity;
 402
 403     qs = pci_test_start();
 404
 405     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 406
 407     capacity = qvirtio_config_readq(&dev->vdev, 0);
 408     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 409
 410     qvirtio_set_driver_ok(&dev->vdev);
 411
 412     qmp_discard_response("{ 'execute': 'block_resize', "
 413                          " 'arguments': { 'device': 'drive0', "
 414                          " 'size': %d } }", n_size);
 415     qvirtio_wait_config_isr(&dev->vdev, QVIRTIO_BLK_TIMEOUT_US);
 416
 417     capacity = qvirtio_config_readq(&dev->vdev, 0);
 418     g_assert_cmpint(capacity, ==, n_size / 512);
 419
 420     qvirtio_pci_device_disable(dev);
 421     qvirtio_pci_device_free(dev);
 422
 423     qtest_shutdown(qs);
 424 }
 425
 426 static void pci_msix(void)
 427 {
 428     QVirtioPCIDevice *dev;
 429     QOSState *qs;
 430     QVirtQueuePCI *vqpci;
 431     QVirtioBlkReq req;
 432     int n_size = TEST_IMAGE_SIZE / 2;
 433     uint64_t req_addr;
 434     uint64_t capacity;
 435     uint32_t features;
 436     uint32_t free_head;
 437     uint8_t status;
 438     char *data;
 439
 440     qs = pci_test_start();
 441
 442     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 443     qpci_msix_enable(dev->pdev);
 444
 445     qvirtio_pci_set_msix_configuration_vector(dev, qs->alloc, 0);
 446
 447     capacity = qvirtio_config_readq(&dev->vdev, 0);
 448     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 449
 450     features = qvirtio_get_features(&dev->vdev);
 451     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 452                             (1u << VIRTIO_RING_F_INDIRECT_DESC) |
 453                             (1u << VIRTIO_RING_F_EVENT_IDX) |
 454                             (1u << VIRTIO_BLK_F_SCSI));
 455     qvirtio_set_features(&dev->vdev, features);
 456
 457     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 458     qvirtqueue_pci_msix_setup(dev, vqpci, qs->alloc, 1);
 459
 460     qvirtio_set_driver_ok(&dev->vdev);
 461
 462     qmp_discard_response("{ 'execute': 'block_resize', "
 463                          " 'arguments': { 'device': 'drive0', "
 464                          " 'size': %d } }", n_size);
 465
 466     qvirtio_wait_config_isr(&dev->vdev, QVIRTIO_BLK_TIMEOUT_US);
 467
 468     capacity = qvirtio_config_readq(&dev->vdev, 0);
 469     g_assert_cmpint(capacity, ==, n_size / 512);
 470
 471     /* Write request */
 472     req.type = VIRTIO_BLK_T_OUT;
 473     req.ioprio = 1;
 474     req.sector = 0;
 475     req.data = g_malloc0(512);
 476     strcpy(req.data, "TEST");
 477
 478     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 479
 480     g_free(req.data);
 481
 482     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 483     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
 484     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 485     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 486
 487     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 488                            QVIRTIO_BLK_TIMEOUT_US);
 489
 490     status = readb(req_addr + 528);
 491     g_assert_cmpint(status, ==, 0);
 492
 493     guest_free(qs->alloc, req_addr);
 494
 495     /* Read request */
 496     req.type = VIRTIO_BLK_T_IN;
 497     req.ioprio = 1;
 498     req.sector = 0;
 499     req.data = g_malloc0(512);
 500
 501     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 502
 503     g_free(req.data);
 504
 505     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 506     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, true, true);
 507     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 508
 509     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 510
 511
 512     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 513                            QVIRTIO_BLK_TIMEOUT_US);
 514
 515     status = readb(req_addr + 528);
 516     g_assert_cmpint(status, ==, 0);
 517
 518     data = g_malloc0(512);
 519     memread(req_addr + 16, data, 512);
 520     g_assert_cmpstr(data, ==, "TEST");
 521     g_free(data);
 522
 523     guest_free(qs->alloc, req_addr);
 524
 525     /* End test */
 526     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 527     qpci_msix_disable(dev->pdev);
 528     qvirtio_pci_device_disable(dev);
 529     qvirtio_pci_device_free(dev);
 530     qtest_shutdown(qs);
 531 }
 532
 533 static void pci_idx(void)
 534 {
 535     QVirtioPCIDevice *dev;
 536     QOSState *qs;
 537     QVirtQueuePCI *vqpci;
 538     QVirtioBlkReq req;
 539     uint64_t req_addr;
 540     uint64_t capacity;
 541     uint32_t features;
 542     uint32_t free_head;
 543     uint32_t write_head;
 544     uint32_t desc_idx;
 545     uint8_t status;
 546     char *data;
 547
 548     qs = pci_test_start();
 549
 550     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT);
 551     qpci_msix_enable(dev->pdev);
 552
 553     qvirtio_pci_set_msix_configuration_vector(dev, qs->alloc, 0);
 554
 555     capacity = qvirtio_config_readq(&dev->vdev, 0);
 556     g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
 557
 558     features = qvirtio_get_features(&dev->vdev);
 559     features = features & ~(QVIRTIO_F_BAD_FEATURE |
 560                             (1u << VIRTIO_RING_F_INDIRECT_DESC) |
 561                             (1u << VIRTIO_F_NOTIFY_ON_EMPTY) |
 562                             (1u << VIRTIO_BLK_F_SCSI));
 563     qvirtio_set_features(&dev->vdev, features);
 564
 565     vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&dev->vdev, qs->alloc, 0);
 566     qvirtqueue_pci_msix_setup(dev, vqpci, qs->alloc, 1);
 567
 568     qvirtio_set_driver_ok(&dev->vdev);
 569
 570     /* Write request */
 571     req.type = VIRTIO_BLK_T_OUT;
 572     req.ioprio = 1;
 573     req.sector = 0;
 574     req.data = g_malloc0(512);
 575     strcpy(req.data, "TEST");
 576
 577     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 578
 579     g_free(req.data);
 580
 581     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 582     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
 583     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 584     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 585
 586     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, free_head, NULL,
 587                            QVIRTIO_BLK_TIMEOUT_US);
 588
 589     /* Write request */
 590     req.type = VIRTIO_BLK_T_OUT;
 591     req.ioprio = 1;
 592     req.sector = 1;
 593     req.data = g_malloc0(512);
 594     strcpy(req.data, "TEST");
 595
 596     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 597
 598     g_free(req.data);
 599
 600     /* Notify after processing the third request */
 601     qvirtqueue_set_used_event(&vqpci->vq, 2);
 602     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 603     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true);
 604     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 605     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 606     write_head = free_head;
 607
 608     /* No notification expected */
 609     status = qvirtio_wait_status_byte_no_isr(&dev->vdev,
 610                                              &vqpci->vq, req_addr + 528,
 611                                              QVIRTIO_BLK_TIMEOUT_US);
 612     g_assert_cmpint(status, ==, 0);
 613
 614     guest_free(qs->alloc, req_addr);
 615
 616     /* Read request */
 617     req.type = VIRTIO_BLK_T_IN;
 618     req.ioprio = 1;
 619     req.sector = 1;
 620     req.data = g_malloc0(512);
 621
 622     req_addr = virtio_blk_request(qs->alloc, &dev->vdev, &req, 512);
 623
 624     g_free(req.data);
 625
 626     free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true);
 627     qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, true, true);
 628     qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false);
 629
 630     qvirtqueue_kick(&dev->vdev, &vqpci->vq, free_head);
 631
 632     /* We get just one notification for both requests */
 633     qvirtio_wait_used_elem(&dev->vdev, &vqpci->vq, write_head, NULL,
 634                            QVIRTIO_BLK_TIMEOUT_US);
 635     g_assert(qvirtqueue_get_buf(&vqpci->vq, &desc_idx, NULL));
 636     g_assert_cmpint(desc_idx, ==, free_head);
 637
 638     status = readb(req_addr + 528);
 639     g_assert_cmpint(status, ==, 0);
 640
 641     data = g_malloc0(512);
 642     memread(req_addr + 16, data, 512);
 643     g_assert_cmpstr(data, ==, "TEST");
 644     g_free(data);
 645
 646     guest_free(qs->alloc, req_addr);
 647
 648     /* End test */
 649     qvirtqueue_cleanup(dev->vdev.bus, &vqpci->vq, qs->alloc);
 650     qpci_msix_disable(dev->pdev);
 651     qvirtio_pci_device_disable(dev);
 652     qvirtio_pci_device_free(dev);
 653     qtest_shutdown(qs);
 654 }
 655
 656 static void pci_hotplug(void)
 657 {
 658     QVirtioPCIDevice *dev;
 659     QOSState *qs;
 660     const char *arch = qtest_get_arch();
 661
 662     qs = pci_test_start();
 663
 664     /* plug secondary disk */
 665     qpci_plug_device_test("virtio-blk-pci", "drv1", PCI_SLOT_HP,
 666                           "'drive': 'drive1'");
 667
 668     dev = virtio_blk_pci_init(qs->pcibus, PCI_SLOT_HP);
 669     g_assert(dev);
 670     qvirtio_pci_device_disable(dev);
 671     qvirtio_pci_device_free(dev);
 672
 673     /* unplug secondary disk */
 674     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 675         qpci_unplug_acpi_device_test("drv1", PCI_SLOT_HP);
 676     }
 677     qtest_shutdown(qs);
 678 }
 679
 680 /*
 681  * Check that setting the vring addr on a non-existent virtqueue does
 682  * not crash.
 683  */
 684 static void test_nonexistent_virtqueue(void)
 685 {
 686     QPCIBar bar0;
 687     QOSState *qs;
 688     QPCIDevice *dev;
 689
 690     qs = pci_test_start();
 691     dev = qpci_device_find(qs->pcibus, QPCI_DEVFN(4, 0));
 692     g_assert(dev != NULL);
 693
 694     qpci_device_enable(dev);
 695     bar0 = qpci_iomap(dev, 0, NULL);
 696
 697     qpci_io_writeb(dev, bar0, VIRTIO_PCI_QUEUE_SEL, 2);
 698     qpci_io_writel(dev, bar0, VIRTIO_PCI_QUEUE_PFN, 1);
 699
 700     g_free(dev);
 701     qtest_shutdown(qs);
 702 }
 703
 704 static void mmio_basic(void)
 705 {
 706     QVirtioMMIODevice *dev;
 707     QVirtQueue *vq;
 708     QGuestAllocator *alloc;
 709     int n_size = TEST_IMAGE_SIZE / 2;
 710     uint64_t capacity;
 711
 712     arm_test_start();
 713
 714     dev = qvirtio_mmio_init_device(MMIO_DEV_BASE_ADDR, MMIO_PAGE_SIZE);
 715     g_assert(dev != NULL);
 716     g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_BLOCK);
 717
 718     qvirtio_reset(&dev->vdev);
 719     qvirtio_set_acknowledge(&dev->vdev);
 720     qvirtio_set_driver(&dev->vdev);
 721
 722     alloc = generic_alloc_init(MMIO_RAM_ADDR, MMIO_RAM_SIZE, MMIO_PAGE_SIZE);
 723     vq = qvirtqueue_setup(&dev->vdev, alloc, 0);
 724
 725     test_basic(&dev->vdev, alloc, vq);
 726
 727     qmp_discard_response("{ 'execute': 'block_resize', "
 728                          " 'arguments': { 'device': 'drive0', "
 729                          " 'size': %d } }", n_size);
 730
 731     qvirtio_wait_queue_isr(&dev->vdev, vq, QVIRTIO_BLK_TIMEOUT_US);
 732
 733     capacity = qvirtio_config_readq(&dev->vdev, 0);
 734     g_assert_cmpint(capacity, ==, n_size / 512);
 735
 736     /* End test */
 737     qvirtqueue_cleanup(dev->vdev.bus, vq, alloc);
 738     g_free(dev);
 739     generic_alloc_uninit(alloc);
 740     test_end();
 741 }
 742
 743 int main(int argc, char **argv)
 744 {
 745     const char *arch = qtest_get_arch();
 746
 747     g_test_init(&argc, &argv, NULL);
 748
 749     if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0 ||
 750         strcmp(arch, "ppc64") == 0) {
 751         qtest_add_func("/virtio/blk/pci/basic", pci_basic);
 752         qtest_add_func("/virtio/blk/pci/indirect", pci_indirect);
 753         qtest_add_func("/virtio/blk/pci/config", pci_config);
 754         qtest_add_func("/virtio/blk/pci/nxvirtq", test_nonexistent_virtqueue);
 755         if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
 756             qtest_add_func("/virtio/blk/pci/msix", pci_msix);
 757             qtest_add_func("/virtio/blk/pci/idx", pci_idx);
 758         }
 759         qtest_add_func("/virtio/blk/pci/hotplug", pci_hotplug);
 760     } else if (strcmp(arch, "arm") == 0) {
 761         qtest_add_func("/virtio/blk/mmio/basic", mmio_basic);
 762     }
 763
 764     return g_test_run();
 765 }