| 275 | } |
| 276 | |
| 277 | static int test_regions(void) |
| 278 | { |
| 279 | struct io_uring_region_desc rd = {}; |
| 280 | struct io_uring_mem_region_reg mr = {}; |
| 281 | void *buffer; |
| 282 | int ret; |
| 283 | |
| 284 | buffer = t_aligned_alloc(page_size, page_size * 4); |
| 285 | if (!buffer) { |
| 286 | fprintf(stderr, "allocation failed\n"); |
| 287 | return T_EXIT_FAIL; |
| 288 | } |
| 289 | |
| 290 | rd.user_addr = uring_ptr_to_u64(buffer); |
| 291 | rd.size = page_size; |
| 292 | rd.flags = IORING_MEM_REGION_TYPE_USER; |
| 293 | |
| 294 | mr.region_uptr = uring_ptr_to_u64(&rd); |
| 295 | mr.flags = IORING_MEM_REGION_REG_WAIT_ARG; |
| 296 | |
| 297 | ret = test_try_register_region(&mr, true); |
| 298 | if (ret == -EINVAL) { |
| 299 | free(buffer); |
| 300 | return T_EXIT_SKIP; |
| 301 | } |
| 302 | if (ret) { |
| 303 | fprintf(stderr, "region: register normal fail %i\n", ret); |
| 304 | return T_EXIT_FAIL; |
| 305 | } |
| 306 | |
| 307 | ret = test_try_register_region(&mr, false); |
| 308 | if (ret != -EINVAL) { |
| 309 | fprintf(stderr, "region: register with !R_DISABLED fail %i\n", ret); |
| 310 | return T_EXIT_FAIL; |
| 311 | } |
| 312 | |
| 313 | rd.size = page_size * 4; |
| 314 | ret = test_try_register_region(&mr, true); |
| 315 | if (ret) { |
| 316 | fprintf(stderr, "test_try_register_region() 16KB fail %i\n", ret); |
| 317 | return T_EXIT_FAIL; |
| 318 | } |
| 319 | rd.size = page_size; |
| 320 | |
| 321 | rd.user_addr = 0; |
| 322 | ret = test_try_register_region(&mr, true); |
| 323 | if (ret != -EFAULT) { |
| 324 | fprintf(stderr, "test_try_register_region() null uptr fail %i\n", ret); |
| 325 | return T_EXIT_FAIL; |
| 326 | } |
| 327 | rd.user_addr = uring_ptr_to_u64(buffer); |
| 328 | |
| 329 | rd.flags = 0; |
| 330 | ret = test_try_register_region(&mr, true); |
| 331 | if (!ret) { |
| 332 | fprintf(stderr, "test_try_register_region() kernel alloc with uptr fail %i\n", ret); |
| 333 | return T_EXIT_FAIL; |
| 334 | } |
no test coverage detected