| 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-single.h" |
| 13 | #include "qemu/bswap.h" |
| 14 | #include "qemu/module.h" |
| 15 | #include "standard-headers/linux/virtio_blk.h" |
| 16 | #include "standard-headers/linux/virtio_pci.h" |
| 17 | #include "libqos/qgraph.h" |
| 18 | #include "libqos/virtio-blk.h" |
| 19 | |
| 20 | #define TEST_IMAGE_SIZE (64 * 1024 * 1024) |
| 21 | #define QVIRTIO_BLK_TIMEOUT_US (30 * 1000 * 1000) |
| 22 | #define PCI_SLOT_HP 0x06 |
| 23 | |
| 24 | typedef struct QVirtioBlkReq { |
| 25 | uint32_t type; |
| 26 | uint32_t ioprio; |
| 27 | uint64_t sector; |
| 28 | char *data; |
| 29 | uint8_t status; |
| 30 | } QVirtioBlkReq; |
| 31 | |
| 32 | |
| 33 | #if HOST_BIG_ENDIAN |
| 34 | const bool host_is_big_endian = true; |
| 35 | #else |
| 36 | const bool host_is_big_endian; /* false */ |
| 37 | #endif |
| 38 | |
| 39 | static void drive_destroy(void *path) |
| 40 | { |
| 41 | unlink(path); |
| 42 | g_free(path); |
| 43 | qos_invalidate_command_line(); |
| 44 | } |
| 45 | |
| 46 | static char *drive_create(void) |
| 47 | { |
| 48 | int fd, ret; |
| 49 | char *t_path; |
| 50 | |
| 51 | /* Create a temporary raw image */ |
| 52 | fd = g_file_open_tmp("qtest.XXXXXX", &t_path, NULL); |
| 53 | g_assert_cmpint(fd, >=, 0); |
| 54 | ret = ftruncate(fd, TEST_IMAGE_SIZE); |
| 55 | g_assert_cmpint(ret, ==, 0); |
| 56 | close(fd); |
| 57 | |
| 58 | g_test_queue_destroy(drive_destroy, t_path); |
| 59 | return t_path; |
| 60 | } |
| 61 | |
| 62 | static inline void virtio_blk_fix_request(QVirtioDevice *d, QVirtioBlkReq *req) |
| 63 | { |
| 64 | if (qvirtio_is_big_endian(d) != host_is_big_endian) { |
| 65 | req->type = bswap32(req->type); |
| 66 | req->ioprio = bswap32(req->ioprio); |
| 67 | req->sector = bswap64(req->sector); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | |
| 72 | static inline void virtio_blk_fix_dwz_hdr(QVirtioDevice *d, |
| 73 | struct virtio_blk_discard_write_zeroes *dwz_hdr) |
| 74 | { |
| 75 | if (qvirtio_is_big_endian(d) != host_is_big_endian) { |
| 76 | dwz_hdr->sector = bswap64(dwz_hdr->sector); |
| 77 | dwz_hdr->num_sectors = bswap32(dwz_hdr->num_sectors); |
| 78 | dwz_hdr->flags = bswap32(dwz_hdr->flags); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioDevice *d, |
| 83 | QVirtioBlkReq *req, uint64_t data_size) |
| 84 | { |
| 85 | uint64_t addr; |
| 86 | uint8_t status = 0xFF; |
| 87 | |
| 88 | switch (req->type) { |
| 89 | case VIRTIO_BLK_T_IN: |
| 90 | case VIRTIO_BLK_T_OUT: |
| 91 | g_assert_cmpuint(data_size % 512, ==, 0); |
| 92 | break; |
| 93 | case VIRTIO_BLK_T_DISCARD: |
| 94 | case VIRTIO_BLK_T_WRITE_ZEROES: |
| 95 | g_assert_cmpuint(data_size % |
| 96 | sizeof(struct virtio_blk_discard_write_zeroes), ==, 0); |
| 97 | break; |
| 98 | default: |
| 99 | g_assert_cmpuint(data_size, ==, 0); |
| 100 | } |
| 101 | |
| 102 | addr = guest_alloc(alloc, sizeof(*req) + data_size); |
| 103 | |
| 104 | virtio_blk_fix_request(d, req); |
| 105 | |
| 106 | memwrite(addr, req, 16); |
| 107 | memwrite(addr + 16, req->data, data_size); |
| 108 | memwrite(addr + 16 + data_size, &status, sizeof(status)); |
| 109 | |
| 110 | return addr; |
| 111 | } |
| 112 | |
| 113 | /* Returns the request virtqueue so the caller can perform further tests */ |
| 114 | static QVirtQueue *test_basic(QVirtioDevice *dev, QGuestAllocator *alloc) |
| 115 | { |
| 116 | QVirtioBlkReq req; |
| 117 | uint64_t req_addr; |
| 118 | uint64_t capacity; |
| 119 | uint64_t features; |
| 120 | uint32_t free_head; |
| 121 | uint8_t status; |
| 122 | char *data; |
| 123 | QTestState *qts = global_qtest; |
| 124 | QVirtQueue *vq; |
| 125 | |
| 126 | features = qvirtio_get_features(dev); |
| 127 | features = features & ~(QVIRTIO_F_BAD_FEATURE | |
| 128 | (1u << VIRTIO_RING_F_INDIRECT_DESC) | |
| 129 | (1u << VIRTIO_RING_F_EVENT_IDX) | |
| 130 | (1u << VIRTIO_BLK_F_SCSI)); |
| 131 | qvirtio_set_features(dev, features); |
| 132 | |
| 133 | capacity = qvirtio_config_readq(dev, 0); |
| 134 | g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); |
| 135 | |
| 136 | vq = qvirtqueue_setup(dev, alloc, 0); |
| 137 | |
| 138 | qvirtio_set_driver_ok(dev); |
| 139 | |
| 140 | /* Write and read with 3 descriptor layout */ |
| 141 | /* Write request */ |
| 142 | req.type = VIRTIO_BLK_T_OUT; |
| 143 | req.ioprio = 1; |
| 144 | req.sector = 0; |
| 145 | req.data = g_malloc0(512); |
| 146 | strcpy(req.data, "TEST"); |
| 147 | |
| 148 | req_addr = virtio_blk_request(alloc, dev, &req, 512); |
| 149 | |
| 150 | g_free(req.data); |
| 151 | |
| 152 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 153 | qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true); |
| 154 | qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false); |
| 155 | |
| 156 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 157 | |
| 158 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 159 | QVIRTIO_BLK_TIMEOUT_US); |
| 160 | status = readb(req_addr + 528); |
| 161 | g_assert_cmpint(status, ==, 0); |
| 162 | |
| 163 | guest_free(alloc, req_addr); |
| 164 | |
| 165 | /* Read request */ |
| 166 | req.type = VIRTIO_BLK_T_IN; |
| 167 | req.ioprio = 1; |
| 168 | req.sector = 0; |
| 169 | req.data = g_malloc0(512); |
| 170 | |
| 171 | req_addr = virtio_blk_request(alloc, dev, &req, 512); |
| 172 | |
| 173 | g_free(req.data); |
| 174 | |
| 175 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 176 | qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true); |
| 177 | qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false); |
| 178 | |
| 179 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 180 | |
| 181 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 182 | QVIRTIO_BLK_TIMEOUT_US); |
| 183 | status = readb(req_addr + 528); |
| 184 | g_assert_cmpint(status, ==, 0); |
| 185 | |
| 186 | data = g_malloc0(512); |
| 187 | memread(req_addr + 16, data, 512); |
| 188 | g_assert_cmpstr(data, ==, "TEST"); |
| 189 | g_free(data); |
| 190 | |
| 191 | guest_free(alloc, req_addr); |
| 192 | |
| 193 | if (features & (1u << VIRTIO_BLK_F_WRITE_ZEROES)) { |
| 194 | struct virtio_blk_discard_write_zeroes dwz_hdr; |
| 195 | void *expected; |
| 196 | |
| 197 | /* |
| 198 | * WRITE_ZEROES request on the same sector of previous test where |
| 199 | * we wrote "TEST". |
| 200 | */ |
| 201 | req.type = VIRTIO_BLK_T_WRITE_ZEROES; |
| 202 | req.data = (char *) &dwz_hdr; |
| 203 | dwz_hdr.sector = 0; |
| 204 | dwz_hdr.num_sectors = 1; |
| 205 | dwz_hdr.flags = 0; |
| 206 | |
| 207 | virtio_blk_fix_dwz_hdr(dev, &dwz_hdr); |
| 208 | |
| 209 | req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr)); |
| 210 | |
| 211 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 212 | qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true); |
| 213 | qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true, |
| 214 | false); |
| 215 | |
| 216 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 217 | |
| 218 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 219 | QVIRTIO_BLK_TIMEOUT_US); |
| 220 | status = readb(req_addr + 16 + sizeof(dwz_hdr)); |
| 221 | g_assert_cmpint(status, ==, 0); |
| 222 | |
| 223 | guest_free(alloc, req_addr); |
| 224 | |
| 225 | /* Read request to check if the sector contains all zeroes */ |
| 226 | req.type = VIRTIO_BLK_T_IN; |
| 227 | req.ioprio = 1; |
| 228 | req.sector = 0; |
| 229 | req.data = g_malloc0(512); |
| 230 | |
| 231 | req_addr = virtio_blk_request(alloc, dev, &req, 512); |
| 232 | |
| 233 | g_free(req.data); |
| 234 | |
| 235 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 236 | qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true); |
| 237 | qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false); |
| 238 | |
| 239 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 240 | |
| 241 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 242 | QVIRTIO_BLK_TIMEOUT_US); |
| 243 | status = readb(req_addr + 528); |
| 244 | g_assert_cmpint(status, ==, 0); |
| 245 | |
| 246 | data = g_malloc(512); |
| 247 | expected = g_malloc0(512); |
| 248 | memread(req_addr + 16, data, 512); |
| 249 | g_assert_cmpmem(data, 512, expected, 512); |
| 250 | g_free(expected); |
| 251 | g_free(data); |
| 252 | |
| 253 | guest_free(alloc, req_addr); |
| 254 | } |
| 255 | |
| 256 | if (features & (1u << VIRTIO_BLK_F_DISCARD)) { |
| 257 | struct virtio_blk_discard_write_zeroes dwz_hdr; |
| 258 | |
| 259 | req.type = VIRTIO_BLK_T_DISCARD; |
| 260 | req.data = (char *) &dwz_hdr; |
| 261 | dwz_hdr.sector = 0; |
| 262 | dwz_hdr.num_sectors = 1; |
| 263 | dwz_hdr.flags = 0; |
| 264 | |
| 265 | virtio_blk_fix_dwz_hdr(dev, &dwz_hdr); |
| 266 | |
| 267 | req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr)); |
| 268 | |
| 269 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 270 | qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true); |
| 271 | qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true, false); |
| 272 | |
| 273 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 274 | |
| 275 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 276 | QVIRTIO_BLK_TIMEOUT_US); |
| 277 | status = readb(req_addr + 16 + sizeof(dwz_hdr)); |
| 278 | g_assert_cmpint(status, ==, 0); |
| 279 | |
| 280 | guest_free(alloc, req_addr); |
| 281 | } |
| 282 | |
| 283 | if (features & (1u << VIRTIO_F_ANY_LAYOUT)) { |
| 284 | /* Write and read with 2 descriptor layout */ |
| 285 | /* Write request */ |
| 286 | req.type = VIRTIO_BLK_T_OUT; |
| 287 | req.ioprio = 1; |
| 288 | req.sector = 1; |
| 289 | req.data = g_malloc0(512); |
| 290 | strcpy(req.data, "TEST"); |
| 291 | |
| 292 | req_addr = virtio_blk_request(alloc, dev, &req, 512); |
| 293 | |
| 294 | g_free(req.data); |
| 295 | |
| 296 | free_head = qvirtqueue_add(qts, vq, req_addr, 528, false, true); |
| 297 | qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false); |
| 298 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 299 | |
| 300 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 301 | QVIRTIO_BLK_TIMEOUT_US); |
| 302 | status = readb(req_addr + 528); |
| 303 | g_assert_cmpint(status, ==, 0); |
| 304 | |
| 305 | guest_free(alloc, req_addr); |
| 306 | |
| 307 | /* Read request */ |
| 308 | req.type = VIRTIO_BLK_T_IN; |
| 309 | req.ioprio = 1; |
| 310 | req.sector = 1; |
| 311 | req.data = g_malloc0(512); |
| 312 | |
| 313 | req_addr = virtio_blk_request(alloc, dev, &req, 512); |
| 314 | |
| 315 | g_free(req.data); |
| 316 | |
| 317 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 318 | qvirtqueue_add(qts, vq, req_addr + 16, 513, true, false); |
| 319 | |
| 320 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 321 | |
| 322 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 323 | QVIRTIO_BLK_TIMEOUT_US); |
| 324 | status = readb(req_addr + 528); |
| 325 | g_assert_cmpint(status, ==, 0); |
| 326 | |
| 327 | data = g_malloc0(512); |
| 328 | memread(req_addr + 16, data, 512); |
| 329 | g_assert_cmpstr(data, ==, "TEST"); |
| 330 | g_free(data); |
| 331 | |
| 332 | guest_free(alloc, req_addr); |
| 333 | } |
| 334 | |
| 335 | return vq; |
| 336 | } |
| 337 | |
| 338 | static void basic(void *obj, void *data, QGuestAllocator *t_alloc) |
| 339 | { |
| 340 | QVirtioBlk *blk_if = obj; |
| 341 | QVirtQueue *vq; |
| 342 | |
| 343 | vq = test_basic(blk_if->vdev, t_alloc); |
| 344 | qvirtqueue_cleanup(blk_if->vdev->bus, vq, t_alloc); |
| 345 | |
| 346 | } |
| 347 | |
| 348 | static void indirect(void *obj, void *u_data, QGuestAllocator *t_alloc) |
| 349 | { |
| 350 | QVirtQueue *vq; |
| 351 | QVirtioBlk *blk_if = obj; |
| 352 | QVirtioDevice *dev = blk_if->vdev; |
| 353 | QVirtioBlkReq req; |
| 354 | QVRingIndirectDesc *indirect; |
| 355 | uint64_t req_addr; |
| 356 | uint64_t capacity; |
| 357 | uint64_t features; |
| 358 | uint32_t free_head; |
| 359 | uint8_t status; |
| 360 | char *data; |
| 361 | QTestState *qts = global_qtest; |
| 362 | |
| 363 | features = qvirtio_get_features(dev); |
| 364 | g_assert_cmphex(features & (1u << VIRTIO_RING_F_INDIRECT_DESC), !=, 0); |
| 365 | features = features & ~(QVIRTIO_F_BAD_FEATURE | |
| 366 | (1u << VIRTIO_RING_F_EVENT_IDX) | |
| 367 | (1u << VIRTIO_BLK_F_SCSI)); |
| 368 | qvirtio_set_features(dev, features); |
| 369 | |
| 370 | capacity = qvirtio_config_readq(dev, 0); |
| 371 | g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); |
| 372 | |
| 373 | vq = qvirtqueue_setup(dev, t_alloc, 0); |
| 374 | qvirtio_set_driver_ok(dev); |
| 375 | |
| 376 | /* Write request */ |
| 377 | req.type = VIRTIO_BLK_T_OUT; |
| 378 | req.ioprio = 1; |
| 379 | req.sector = 0; |
| 380 | req.data = g_malloc0(512); |
| 381 | strcpy(req.data, "TEST"); |
| 382 | |
| 383 | req_addr = virtio_blk_request(t_alloc, dev, &req, 512); |
| 384 | |
| 385 | g_free(req.data); |
| 386 | |
| 387 | indirect = qvring_indirect_desc_setup(qts, dev, t_alloc, 2); |
| 388 | qvring_indirect_desc_add(dev, qts, indirect, req_addr, 528, false); |
| 389 | qvring_indirect_desc_add(dev, qts, indirect, req_addr + 528, 1, true); |
| 390 | free_head = qvirtqueue_add_indirect(qts, vq, indirect); |
| 391 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 392 | |
| 393 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 394 | QVIRTIO_BLK_TIMEOUT_US); |
| 395 | status = readb(req_addr + 528); |
| 396 | g_assert_cmpint(status, ==, 0); |
| 397 | |
| 398 | g_free(indirect); |
| 399 | guest_free(t_alloc, req_addr); |
| 400 | |
| 401 | /* Read request */ |
| 402 | req.type = VIRTIO_BLK_T_IN; |
| 403 | req.ioprio = 1; |
| 404 | req.sector = 0; |
| 405 | req.data = g_malloc0(512); |
| 406 | strcpy(req.data, "TEST"); |
| 407 | |
| 408 | req_addr = virtio_blk_request(t_alloc, dev, &req, 512); |
| 409 | |
| 410 | g_free(req.data); |
| 411 | |
| 412 | indirect = qvring_indirect_desc_setup(qts, dev, t_alloc, 2); |
| 413 | qvring_indirect_desc_add(dev, qts, indirect, req_addr, 16, false); |
| 414 | qvring_indirect_desc_add(dev, qts, indirect, req_addr + 16, 513, true); |
| 415 | free_head = qvirtqueue_add_indirect(qts, vq, indirect); |
| 416 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 417 | |
| 418 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 419 | QVIRTIO_BLK_TIMEOUT_US); |
| 420 | status = readb(req_addr + 528); |
| 421 | g_assert_cmpint(status, ==, 0); |
| 422 | |
| 423 | data = g_malloc0(512); |
| 424 | memread(req_addr + 16, data, 512); |
| 425 | g_assert_cmpstr(data, ==, "TEST"); |
| 426 | g_free(data); |
| 427 | |
| 428 | g_free(indirect); |
| 429 | guest_free(t_alloc, req_addr); |
| 430 | qvirtqueue_cleanup(dev->bus, vq, t_alloc); |
| 431 | } |
| 432 | |
| 433 | static void config(void *obj, void *data, QGuestAllocator *t_alloc) |
| 434 | { |
| 435 | QVirtioBlk *blk_if = obj; |
| 436 | QVirtioDevice *dev = blk_if->vdev; |
| 437 | int n_size = TEST_IMAGE_SIZE / 2; |
| 438 | uint64_t features; |
| 439 | uint64_t capacity; |
| 440 | |
| 441 | features = qvirtio_get_features(dev); |
| 442 | features = features & ~(QVIRTIO_F_BAD_FEATURE | |
| 443 | (1u << VIRTIO_RING_F_INDIRECT_DESC) | |
| 444 | (1u << VIRTIO_RING_F_EVENT_IDX) | |
| 445 | (1u << VIRTIO_BLK_F_SCSI)); |
| 446 | qvirtio_set_features(dev, features); |
| 447 | |
| 448 | capacity = qvirtio_config_readq(dev, 0); |
| 449 | g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); |
| 450 | |
| 451 | qvirtio_set_driver_ok(dev); |
| 452 | |
| 453 | qtest_qmp_assert_success(global_qtest, |
| 454 | "{ 'execute': 'block_resize', " |
| 455 | " 'arguments': { 'device': 'drive0', " |
| 456 | " 'size': %d } }", n_size); |
| 457 | qvirtio_wait_config_isr(dev, QVIRTIO_BLK_TIMEOUT_US); |
| 458 | |
| 459 | capacity = qvirtio_config_readq(dev, 0); |
| 460 | g_assert_cmpint(capacity, ==, n_size / 512); |
| 461 | } |
| 462 | |
| 463 | static void msix(void *obj, void *u_data, QGuestAllocator *t_alloc) |
| 464 | { |
| 465 | QVirtQueue *vq; |
| 466 | QVirtioBlkPCI *blk = obj; |
| 467 | QVirtioPCIDevice *pdev = &blk->pci_vdev; |
| 468 | QVirtioDevice *dev = &pdev->vdev; |
| 469 | QVirtioBlkReq req; |
| 470 | int n_size = TEST_IMAGE_SIZE / 2; |
| 471 | uint64_t req_addr; |
| 472 | uint64_t capacity; |
| 473 | uint64_t features; |
| 474 | uint32_t free_head; |
| 475 | uint8_t status; |
| 476 | char *data; |
| 477 | QOSGraphObject *blk_object = obj; |
| 478 | QPCIDevice *pci_dev = blk_object->get_driver(blk_object, "pci-device"); |
| 479 | QTestState *qts = global_qtest; |
| 480 | |
| 481 | if (qpci_check_buggy_msi(pci_dev)) { |
| 482 | return; |
| 483 | } |
| 484 | |
| 485 | qpci_msix_enable(pdev->pdev); |
| 486 | qvirtio_pci_set_msix_configuration_vector(pdev, t_alloc, 0); |
| 487 | |
| 488 | features = qvirtio_get_features(dev); |
| 489 | features = features & ~(QVIRTIO_F_BAD_FEATURE | |
| 490 | (1u << VIRTIO_RING_F_INDIRECT_DESC) | |
| 491 | (1u << VIRTIO_RING_F_EVENT_IDX) | |
| 492 | (1u << VIRTIO_BLK_F_SCSI)); |
| 493 | qvirtio_set_features(dev, features); |
| 494 | |
| 495 | capacity = qvirtio_config_readq(dev, 0); |
| 496 | g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); |
| 497 | |
| 498 | vq = qvirtqueue_setup(dev, t_alloc, 0); |
| 499 | qvirtqueue_pci_msix_setup(pdev, (QVirtQueuePCI *)vq, t_alloc, 1); |
| 500 | |
| 501 | qvirtio_set_driver_ok(dev); |
| 502 | |
| 503 | qtest_qmp_assert_success(global_qtest, |
| 504 | "{ 'execute': 'block_resize', " |
| 505 | " 'arguments': { 'device': 'drive0', " |
| 506 | " 'size': %d } }", n_size); |
| 507 | |
| 508 | qvirtio_wait_config_isr(dev, QVIRTIO_BLK_TIMEOUT_US); |
| 509 | |
| 510 | capacity = qvirtio_config_readq(dev, 0); |
| 511 | g_assert_cmpint(capacity, ==, n_size / 512); |
| 512 | |
| 513 | /* Write request */ |
| 514 | req.type = VIRTIO_BLK_T_OUT; |
| 515 | req.ioprio = 1; |
| 516 | req.sector = 0; |
| 517 | req.data = g_malloc0(512); |
| 518 | strcpy(req.data, "TEST"); |
| 519 | |
| 520 | req_addr = virtio_blk_request(t_alloc, dev, &req, 512); |
| 521 | |
| 522 | g_free(req.data); |
| 523 | |
| 524 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 525 | qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true); |
| 526 | qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false); |
| 527 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 528 | |
| 529 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 530 | QVIRTIO_BLK_TIMEOUT_US); |
| 531 | |
| 532 | status = readb(req_addr + 528); |
| 533 | g_assert_cmpint(status, ==, 0); |
| 534 | |
| 535 | guest_free(t_alloc, req_addr); |
| 536 | |
| 537 | /* Read request */ |
| 538 | req.type = VIRTIO_BLK_T_IN; |
| 539 | req.ioprio = 1; |
| 540 | req.sector = 0; |
| 541 | req.data = g_malloc0(512); |
| 542 | |
| 543 | req_addr = virtio_blk_request(t_alloc, dev, &req, 512); |
| 544 | |
| 545 | g_free(req.data); |
| 546 | |
| 547 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 548 | qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true); |
| 549 | qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false); |
| 550 | |
| 551 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 552 | |
| 553 | |
| 554 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 555 | QVIRTIO_BLK_TIMEOUT_US); |
| 556 | |
| 557 | status = readb(req_addr + 528); |
| 558 | g_assert_cmpint(status, ==, 0); |
| 559 | |
| 560 | data = g_malloc0(512); |
| 561 | memread(req_addr + 16, data, 512); |
| 562 | g_assert_cmpstr(data, ==, "TEST"); |
| 563 | g_free(data); |
| 564 | |
| 565 | guest_free(t_alloc, req_addr); |
| 566 | |
| 567 | /* End test */ |
| 568 | qpci_msix_disable(pdev->pdev); |
| 569 | qvirtqueue_cleanup(dev->bus, vq, t_alloc); |
| 570 | } |
| 571 | |
| 572 | static void idx(void *obj, void *u_data, QGuestAllocator *t_alloc) |
| 573 | { |
| 574 | QVirtQueue *vq; |
| 575 | QVirtioBlkPCI *blk = obj; |
| 576 | QVirtioPCIDevice *pdev = &blk->pci_vdev; |
| 577 | QVirtioDevice *dev = &pdev->vdev; |
| 578 | QVirtioBlkReq req; |
| 579 | uint64_t req_addr; |
| 580 | uint64_t capacity; |
| 581 | uint64_t features; |
| 582 | uint32_t free_head; |
| 583 | uint32_t write_head; |
| 584 | uint32_t desc_idx; |
| 585 | uint8_t status; |
| 586 | char *data; |
| 587 | QOSGraphObject *blk_object = obj; |
| 588 | QPCIDevice *pci_dev = blk_object->get_driver(blk_object, "pci-device"); |
| 589 | QTestState *qts = global_qtest; |
| 590 | |
| 591 | if (qpci_check_buggy_msi(pci_dev)) { |
| 592 | return; |
| 593 | } |
| 594 | |
| 595 | qpci_msix_enable(pdev->pdev); |
| 596 | qvirtio_pci_set_msix_configuration_vector(pdev, t_alloc, 0); |
| 597 | |
| 598 | features = qvirtio_get_features(dev); |
| 599 | features = features & ~(QVIRTIO_F_BAD_FEATURE | |
| 600 | (1u << VIRTIO_RING_F_INDIRECT_DESC) | |
| 601 | (1u << VIRTIO_F_NOTIFY_ON_EMPTY) | |
| 602 | (1u << VIRTIO_BLK_F_SCSI)); |
| 603 | qvirtio_set_features(dev, features); |
| 604 | |
| 605 | capacity = qvirtio_config_readq(dev, 0); |
| 606 | g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); |
| 607 | |
| 608 | vq = qvirtqueue_setup(dev, t_alloc, 0); |
| 609 | qvirtqueue_pci_msix_setup(pdev, (QVirtQueuePCI *)vq, t_alloc, 1); |
| 610 | |
| 611 | qvirtio_set_driver_ok(dev); |
| 612 | |
| 613 | /* Write request */ |
| 614 | req.type = VIRTIO_BLK_T_OUT; |
| 615 | req.ioprio = 1; |
| 616 | req.sector = 0; |
| 617 | req.data = g_malloc0(512); |
| 618 | strcpy(req.data, "TEST"); |
| 619 | |
| 620 | req_addr = virtio_blk_request(t_alloc, dev, &req, 512); |
| 621 | |
| 622 | g_free(req.data); |
| 623 | |
| 624 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 625 | qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true); |
| 626 | qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false); |
| 627 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 628 | |
| 629 | qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, |
| 630 | QVIRTIO_BLK_TIMEOUT_US); |
| 631 | |
| 632 | /* Write request */ |
| 633 | req.type = VIRTIO_BLK_T_OUT; |
| 634 | req.ioprio = 1; |
| 635 | req.sector = 1; |
| 636 | req.data = g_malloc0(512); |
| 637 | strcpy(req.data, "TEST"); |
| 638 | |
| 639 | req_addr = virtio_blk_request(t_alloc, dev, &req, 512); |
| 640 | |
| 641 | g_free(req.data); |
| 642 | |
| 643 | /* Notify after processing the third request */ |
| 644 | qvirtqueue_set_used_event(qts, vq, 2); |
| 645 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 646 | qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true); |
| 647 | qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false); |
| 648 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 649 | write_head = free_head; |
| 650 | |
| 651 | /* No notification expected */ |
| 652 | status = qvirtio_wait_status_byte_no_isr(qts, dev, |
| 653 | vq, req_addr + 528, |
| 654 | QVIRTIO_BLK_TIMEOUT_US); |
| 655 | g_assert_cmpint(status, ==, 0); |
| 656 | |
| 657 | guest_free(t_alloc, req_addr); |
| 658 | |
| 659 | /* Read request */ |
| 660 | req.type = VIRTIO_BLK_T_IN; |
| 661 | req.ioprio = 1; |
| 662 | req.sector = 1; |
| 663 | req.data = g_malloc0(512); |
| 664 | |
| 665 | req_addr = virtio_blk_request(t_alloc, dev, &req, 512); |
| 666 | |
| 667 | g_free(req.data); |
| 668 | |
| 669 | free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true); |
| 670 | qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true); |
| 671 | qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false); |
| 672 | |
| 673 | qvirtqueue_kick(qts, dev, vq, free_head); |
| 674 | |
| 675 | /* We get just one notification for both requests */ |
| 676 | qvirtio_wait_used_elem(qts, dev, vq, write_head, NULL, |
| 677 | QVIRTIO_BLK_TIMEOUT_US); |
| 678 | g_assert(qvirtqueue_get_buf(qts, vq, &desc_idx, NULL)); |
| 679 | g_assert_cmpint(desc_idx, ==, free_head); |
| 680 | |
| 681 | status = readb(req_addr + 528); |
| 682 | g_assert_cmpint(status, ==, 0); |
| 683 | |
| 684 | data = g_malloc0(512); |
| 685 | memread(req_addr + 16, data, 512); |
| 686 | g_assert_cmpstr(data, ==, "TEST"); |
| 687 | g_free(data); |
| 688 | |
| 689 | guest_free(t_alloc, req_addr); |
| 690 | |
| 691 | /* End test */ |
| 692 | qpci_msix_disable(pdev->pdev); |
| 693 | |
| 694 | qvirtqueue_cleanup(dev->bus, vq, t_alloc); |
| 695 | } |
| 696 | |
| 697 | static void pci_hotplug(void *obj, void *data, QGuestAllocator *t_alloc) |
| 698 | { |
| 699 | QVirtioPCIDevice *dev1 = obj; |
| 700 | QVirtioPCIDevice *dev; |
| 701 | QTestState *qts = dev1->pdev->bus->qts; |
| 702 | |
| 703 | if (dev1->pdev->bus->not_hotpluggable) { |
| 704 | g_test_skip("pci bus does not support hotplug"); |
| 705 | return; |
| 706 | } |
| 707 | |
| 708 | /* plug secondary disk */ |
| 709 | qtest_qmp_device_add(qts, "virtio-blk-pci", "drv1", |
| 710 | "{'addr': %s, 'drive': 'drive1'}", |
| 711 | stringify(PCI_SLOT_HP) ".0"); |
| 712 | |
| 713 | dev = virtio_pci_new(dev1->pdev->bus, |
| 714 | &(QPCIAddress) { .devfn = QPCI_DEVFN(PCI_SLOT_HP, 0) }); |
| 715 | g_assert_nonnull(dev); |
| 716 | g_assert_cmpint(dev->vdev.device_type, ==, VIRTIO_ID_BLOCK); |
| 717 | qvirtio_pci_device_disable(dev); |
| 718 | qos_object_destroy((QOSGraphObject *)dev); |
| 719 | |
| 720 | /* unplug secondary disk */ |
| 721 | qpci_unplug_acpi_device_test(qts, "drv1", PCI_SLOT_HP); |
| 722 | } |
| 723 | |
| 724 | /* |
| 725 | * Check that setting the vring addr on a non-existent virtqueue does |
| 726 | * not crash. |
| 727 | */ |
| 728 | static void test_nonexistent_virtqueue(void *obj, void *data, |
| 729 | QGuestAllocator *t_alloc) |
| 730 | { |
| 731 | QVirtioBlkPCI *blk = obj; |
| 732 | QVirtioPCIDevice *pdev = &blk->pci_vdev; |
| 733 | QPCIBar bar0; |
| 734 | QPCIDevice *dev; |
| 735 | |
| 736 | dev = qpci_device_find(pdev->pdev->bus, QPCI_DEVFN(4, 0)); |
| 737 | g_assert(dev != NULL); |
| 738 | qpci_device_enable(dev); |
| 739 | |
| 740 | bar0 = qpci_iomap(dev, 0, NULL); |
| 741 | |
| 742 | qpci_io_writeb(dev, bar0, VIRTIO_PCI_QUEUE_SEL, 2); |
| 743 | qpci_io_writel(dev, bar0, VIRTIO_PCI_QUEUE_PFN, 1); |
| 744 | |
| 745 | |
| 746 | g_free(dev); |
| 747 | } |
| 748 | |
| 749 | static void resize(void *obj, void *data, QGuestAllocator *t_alloc) |
| 750 | { |
| 751 | QVirtioBlk *blk_if = obj; |
| 752 | QVirtioDevice *dev = blk_if->vdev; |
| 753 | int n_size = TEST_IMAGE_SIZE / 2; |
| 754 | uint64_t capacity; |
| 755 | QVirtQueue *vq; |
| 756 | QTestState *qts = global_qtest; |
| 757 | |
| 758 | vq = test_basic(dev, t_alloc); |
| 759 | |
| 760 | qtest_qmp_assert_success(global_qtest, |
| 761 | "{ 'execute': 'block_resize', " |
| 762 | " 'arguments': { 'device': 'drive0', " |
| 763 | " 'size': %d } }", n_size); |
| 764 | |
| 765 | qvirtio_wait_queue_isr(qts, dev, vq, QVIRTIO_BLK_TIMEOUT_US); |
| 766 | |
| 767 | capacity = qvirtio_config_readq(dev, 0); |
| 768 | g_assert_cmpint(capacity, ==, n_size / 512); |
| 769 | |
| 770 | qvirtqueue_cleanup(dev->bus, vq, t_alloc); |
| 771 | |
| 772 | } |
| 773 | |
| 774 | static void *virtio_blk_test_setup(GString *cmd_line, void *arg) |
| 775 | { |
| 776 | char *tmp_path = drive_create(); |
| 777 | |
| 778 | g_string_append_printf(cmd_line, |
| 779 | " -drive if=none,id=drive0,file=%s," |
| 780 | "format=raw,auto-read-only=off " |
| 781 | "-drive if=none,id=drive1,file=null-co://," |
| 782 | "file.read-zeroes=on,format=raw ", |
| 783 | tmp_path); |
| 784 | |
| 785 | return arg; |
| 786 | } |
| 787 | |
| 788 | static void register_virtio_blk_test(void) |
| 789 | { |
| 790 | QOSGraphTestOptions opts = { |
| 791 | .before = virtio_blk_test_setup, |
| 792 | }; |
| 793 | |
| 794 | qos_add_test("indirect", "virtio-blk", indirect, &opts); |
| 795 | qos_add_test("config", "virtio-blk", config, &opts); |
| 796 | qos_add_test("basic", "virtio-blk", basic, &opts); |
| 797 | qos_add_test("resize", "virtio-blk", resize, &opts); |
| 798 | |
| 799 | /* tests just for virtio-blk-pci */ |
| 800 | qos_add_test("msix", "virtio-blk-pci", msix, &opts); |
| 801 | qos_add_test("idx", "virtio-blk-pci", idx, &opts); |
| 802 | qos_add_test("nxvirtq", "virtio-blk-pci", |
| 803 | test_nonexistent_virtqueue, &opts); |
| 804 | qos_add_test("hotplug", "virtio-blk-pci", pci_hotplug, &opts); |
| 805 | } |
| 806 | |
| 807 | libqos_init(register_virtio_blk_test); |