1 /* 2 * QEMU sPAPR IOMMU (TCE) code 3 * 4 * Copyright (c) 2010 David Gibson, IBM Corporation <dwg@au1.ibm.com> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include "qemu/osdep.h" 21 #include "qemu/error-report.h" 22 #include "qemu/log.h" 23 #include "qemu/module.h" 24 #include "sysemu/kvm.h" 25 #include "kvm_ppc.h" 26 #include "migration/vmstate.h" 27 #include "sysemu/dma.h" 28 #include "exec/address-spaces.h" 29 #include "trace.h" 30 31 #include "hw/ppc/spapr.h" 32 #include "hw/ppc/spapr_vio.h" 33 34 #include <libfdt.h> 35 36 enum SpaprTceAccess { 37 SPAPR_TCE_FAULT = 0, 38 SPAPR_TCE_RO = 1, 39 SPAPR_TCE_WO = 2, 40 SPAPR_TCE_RW = 3, 41 }; 42 43 #define IOMMU_PAGE_SIZE(shift) (1ULL << (shift)) 44 #define IOMMU_PAGE_MASK(shift) (~(IOMMU_PAGE_SIZE(shift) - 1)) 45 46 static QLIST_HEAD(, SpaprTceTable) spapr_tce_tables; 47 48 SpaprTceTable *spapr_tce_find_by_liobn(target_ulong liobn) 49 { 50 SpaprTceTable *tcet; 51 52 if (liobn & 0xFFFFFFFF00000000ULL) { 53 hcall_dprintf("Request for out-of-bounds LIOBN 0x" TARGET_FMT_lx "\n", 54 liobn); 55 return NULL; 56 } 57 58 QLIST_FOREACH(tcet, &spapr_tce_tables, list) { 59 if (tcet->liobn == (uint32_t)liobn) { 60 return tcet; 61 } 62 } 63 64 return NULL; 65 } 66 67 static IOMMUAccessFlags spapr_tce_iommu_access_flags(uint64_t tce) 68 { 69 switch (tce & SPAPR_TCE_RW) { 70 case SPAPR_TCE_FAULT: 71 return IOMMU_NONE; 72 case SPAPR_TCE_RO: 73 return IOMMU_RO; 74 case SPAPR_TCE_WO: 75 return IOMMU_WO; 76 default: /* SPAPR_TCE_RW */ 77 return IOMMU_RW; 78 } 79 } 80 81 static uint64_t *spapr_tce_alloc_table(uint32_t liobn, 82 uint32_t page_shift, 83 uint64_t bus_offset, 84 uint32_t nb_table, 85 int *fd, 86 bool need_vfio) 87 { 88 uint64_t *table = NULL; 89 90 if (kvm_enabled()) { 91 table = kvmppc_create_spapr_tce(liobn, page_shift, bus_offset, nb_table, 92 fd, need_vfio); 93 } 94 95 if (!table) { 96 *fd = -1; 97 table = g_new0(uint64_t, nb_table); 98 } 99 100 trace_spapr_iommu_new_table(liobn, table, *fd); 101 102 return table; 103 } 104 105 static void spapr_tce_free_table(uint64_t *table, int fd, uint32_t nb_table) 106 { 107 if (!kvm_enabled() || 108 (kvmppc_remove_spapr_tce(table, fd, nb_table) != 0)) { 109 g_free(table); 110 } 111 } 112 113 /* Called from RCU critical section */ 114 static IOMMUTLBEntry spapr_tce_translate_iommu(IOMMUMemoryRegion *iommu, 115 hwaddr addr, 116 IOMMUAccessFlags flag, 117 int iommu_idx) 118 { 119 SpaprTceTable *tcet = container_of(iommu, SpaprTceTable, iommu); 120 uint64_t tce; 121 IOMMUTLBEntry ret = { 122 .target_as = &address_space_memory, 123 .iova = 0, 124 .translated_addr = 0, 125 .addr_mask = ~(hwaddr)0, 126 .perm = IOMMU_NONE, 127 }; 128 129 if ((addr >> tcet->page_shift) < tcet->nb_table) { 130 /* Check if we are in bound */ 131 hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 132 133 tce = tcet->table[addr >> tcet->page_shift]; 134 ret.iova = addr & page_mask; 135 ret.translated_addr = tce & page_mask; 136 ret.addr_mask = ~page_mask; 137 ret.perm = spapr_tce_iommu_access_flags(tce); 138 } 139 trace_spapr_iommu_xlate(tcet->liobn, addr, ret.translated_addr, ret.perm, 140 ret.addr_mask); 141 142 return ret; 143 } 144 145 static void spapr_tce_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n) 146 { 147 MemoryRegion *mr = MEMORY_REGION(iommu_mr); 148 IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); 149 hwaddr addr, granularity; 150 IOMMUTLBEntry iotlb; 151 SpaprTceTable *tcet = container_of(iommu_mr, SpaprTceTable, iommu); 152 153 if (tcet->skipping_replay) { 154 return; 155 } 156 157 granularity = memory_region_iommu_get_min_page_size(iommu_mr); 158 159 for (addr = 0; addr < memory_region_size(mr); addr += granularity) { 160 iotlb = imrc->translate(iommu_mr, addr, IOMMU_NONE, n->iommu_idx); 161 if (iotlb.perm != IOMMU_NONE) { 162 n->notify(n, &iotlb); 163 } 164 165 /* 166 * if (2^64 - MR size) < granularity, it's possible to get an 167 * infinite loop here. This should catch such a wraparound. 168 */ 169 if ((addr + granularity) < addr) { 170 break; 171 } 172 } 173 } 174 175 static int spapr_tce_table_pre_save(void *opaque) 176 { 177 SpaprTceTable *tcet = SPAPR_TCE_TABLE(opaque); 178 179 tcet->mig_table = tcet->table; 180 tcet->mig_nb_table = tcet->nb_table; 181 182 trace_spapr_iommu_pre_save(tcet->liobn, tcet->mig_nb_table, 183 tcet->bus_offset, tcet->page_shift); 184 185 return 0; 186 } 187 188 static uint64_t spapr_tce_get_min_page_size(IOMMUMemoryRegion *iommu) 189 { 190 SpaprTceTable *tcet = container_of(iommu, SpaprTceTable, iommu); 191 192 return 1ULL << tcet->page_shift; 193 } 194 195 static int spapr_tce_get_attr(IOMMUMemoryRegion *iommu, 196 enum IOMMUMemoryRegionAttr attr, void *data) 197 { 198 SpaprTceTable *tcet = container_of(iommu, SpaprTceTable, iommu); 199 200 if (attr == IOMMU_ATTR_SPAPR_TCE_FD && kvmppc_has_cap_spapr_vfio()) { 201 *(int *) data = tcet->fd; 202 return 0; 203 } 204 205 return -EINVAL; 206 } 207 208 static int spapr_tce_notify_flag_changed(IOMMUMemoryRegion *iommu, 209 IOMMUNotifierFlag old, 210 IOMMUNotifierFlag new, 211 Error **errp) 212 { 213 struct SpaprTceTable *tbl = container_of(iommu, SpaprTceTable, iommu); 214 215 if (new & IOMMU_NOTIFIER_DEVIOTLB_UNMAP) { 216 error_setg(errp, "spart_tce does not support dev-iotlb yet"); 217 return -EINVAL; 218 } 219 220 if (old == IOMMU_NOTIFIER_NONE && new != IOMMU_NOTIFIER_NONE) { 221 spapr_tce_set_need_vfio(tbl, true); 222 } else if (old != IOMMU_NOTIFIER_NONE && new == IOMMU_NOTIFIER_NONE) { 223 spapr_tce_set_need_vfio(tbl, false); 224 } 225 return 0; 226 } 227 228 static int spapr_tce_table_post_load(void *opaque, int version_id) 229 { 230 SpaprTceTable *tcet = SPAPR_TCE_TABLE(opaque); 231 uint32_t old_nb_table = tcet->nb_table; 232 uint64_t old_bus_offset = tcet->bus_offset; 233 uint32_t old_page_shift = tcet->page_shift; 234 235 if (tcet->vdev) { 236 spapr_vio_set_bypass(tcet->vdev, tcet->bypass); 237 } 238 239 if (tcet->mig_nb_table != tcet->nb_table) { 240 spapr_tce_table_disable(tcet); 241 } 242 243 if (tcet->mig_nb_table) { 244 if (!tcet->nb_table) { 245 spapr_tce_table_enable(tcet, old_page_shift, old_bus_offset, 246 tcet->mig_nb_table); 247 } 248 249 memcpy(tcet->table, tcet->mig_table, 250 tcet->nb_table * sizeof(tcet->table[0])); 251 252 free(tcet->mig_table); 253 tcet->mig_table = NULL; 254 } 255 256 trace_spapr_iommu_post_load(tcet->liobn, old_nb_table, tcet->nb_table, 257 tcet->bus_offset, tcet->page_shift); 258 259 return 0; 260 } 261 262 static bool spapr_tce_table_ex_needed(void *opaque) 263 { 264 SpaprTceTable *tcet = opaque; 265 266 return tcet->bus_offset || tcet->page_shift != 0xC; 267 } 268 269 static const VMStateDescription vmstate_spapr_tce_table_ex = { 270 .name = "spapr_iommu_ex", 271 .version_id = 1, 272 .minimum_version_id = 1, 273 .needed = spapr_tce_table_ex_needed, 274 .fields = (VMStateField[]) { 275 VMSTATE_UINT64(bus_offset, SpaprTceTable), 276 VMSTATE_UINT32(page_shift, SpaprTceTable), 277 VMSTATE_END_OF_LIST() 278 }, 279 }; 280 281 static const VMStateDescription vmstate_spapr_tce_table = { 282 .name = "spapr_iommu", 283 .version_id = 2, 284 .minimum_version_id = 2, 285 .pre_save = spapr_tce_table_pre_save, 286 .post_load = spapr_tce_table_post_load, 287 .fields = (VMStateField []) { 288 /* Sanity check */ 289 VMSTATE_UINT32_EQUAL(liobn, SpaprTceTable, NULL), 290 291 /* IOMMU state */ 292 VMSTATE_UINT32(mig_nb_table, SpaprTceTable), 293 VMSTATE_BOOL(bypass, SpaprTceTable), 294 VMSTATE_VARRAY_UINT32_ALLOC(mig_table, SpaprTceTable, mig_nb_table, 0, 295 vmstate_info_uint64, uint64_t), 296 297 VMSTATE_END_OF_LIST() 298 }, 299 .subsections = (const VMStateDescription*[]) { 300 &vmstate_spapr_tce_table_ex, 301 NULL 302 } 303 }; 304 305 static void spapr_tce_table_realize(DeviceState *dev, Error **errp) 306 { 307 SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); 308 Object *tcetobj = OBJECT(tcet); 309 gchar *tmp; 310 311 tcet->fd = -1; 312 tcet->need_vfio = false; 313 tmp = g_strdup_printf("tce-root-%x", tcet->liobn); 314 memory_region_init(&tcet->root, tcetobj, tmp, UINT64_MAX); 315 g_free(tmp); 316 317 tmp = g_strdup_printf("tce-iommu-%x", tcet->liobn); 318 memory_region_init_iommu(&tcet->iommu, sizeof(tcet->iommu), 319 TYPE_SPAPR_IOMMU_MEMORY_REGION, 320 tcetobj, tmp, 0); 321 g_free(tmp); 322 323 QLIST_INSERT_HEAD(&spapr_tce_tables, tcet, list); 324 325 vmstate_register(VMSTATE_IF(tcet), tcet->liobn, &vmstate_spapr_tce_table, 326 tcet); 327 } 328 329 void spapr_tce_set_need_vfio(SpaprTceTable *tcet, bool need_vfio) 330 { 331 size_t table_size = tcet->nb_table * sizeof(uint64_t); 332 uint64_t *oldtable; 333 int newfd = -1; 334 335 g_assert(need_vfio != tcet->need_vfio); 336 337 tcet->need_vfio = need_vfio; 338 339 if (!need_vfio || (tcet->fd != -1 && kvmppc_has_cap_spapr_vfio())) { 340 return; 341 } 342 343 oldtable = tcet->table; 344 345 tcet->table = spapr_tce_alloc_table(tcet->liobn, 346 tcet->page_shift, 347 tcet->bus_offset, 348 tcet->nb_table, 349 &newfd, 350 need_vfio); 351 memcpy(tcet->table, oldtable, table_size); 352 353 spapr_tce_free_table(oldtable, tcet->fd, tcet->nb_table); 354 355 tcet->fd = newfd; 356 } 357 358 SpaprTceTable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn) 359 { 360 SpaprTceTable *tcet; 361 gchar *tmp; 362 363 if (spapr_tce_find_by_liobn(liobn)) { 364 error_report("Attempted to create TCE table with duplicate" 365 " LIOBN 0x%x", liobn); 366 return NULL; 367 } 368 369 tcet = SPAPR_TCE_TABLE(object_new(TYPE_SPAPR_TCE_TABLE)); 370 tcet->liobn = liobn; 371 372 tmp = g_strdup_printf("tce-table-%x", liobn); 373 object_property_add_child(OBJECT(owner), tmp, OBJECT(tcet)); 374 g_free(tmp); 375 object_unref(OBJECT(tcet)); 376 377 qdev_realize(DEVICE(tcet), NULL, NULL); 378 379 return tcet; 380 } 381 382 void spapr_tce_table_enable(SpaprTceTable *tcet, 383 uint32_t page_shift, uint64_t bus_offset, 384 uint32_t nb_table) 385 { 386 if (tcet->nb_table) { 387 warn_report("trying to enable already enabled TCE table"); 388 return; 389 } 390 391 tcet->bus_offset = bus_offset; 392 tcet->page_shift = page_shift; 393 tcet->nb_table = nb_table; 394 tcet->table = spapr_tce_alloc_table(tcet->liobn, 395 tcet->page_shift, 396 tcet->bus_offset, 397 tcet->nb_table, 398 &tcet->fd, 399 tcet->need_vfio); 400 401 memory_region_set_size(MEMORY_REGION(&tcet->iommu), 402 (uint64_t)tcet->nb_table << tcet->page_shift); 403 memory_region_add_subregion(&tcet->root, tcet->bus_offset, 404 MEMORY_REGION(&tcet->iommu)); 405 } 406 407 void spapr_tce_table_disable(SpaprTceTable *tcet) 408 { 409 if (!tcet->nb_table) { 410 return; 411 } 412 413 memory_region_del_subregion(&tcet->root, MEMORY_REGION(&tcet->iommu)); 414 memory_region_set_size(MEMORY_REGION(&tcet->iommu), 0); 415 416 spapr_tce_free_table(tcet->table, tcet->fd, tcet->nb_table); 417 tcet->fd = -1; 418 tcet->table = NULL; 419 tcet->bus_offset = 0; 420 tcet->page_shift = 0; 421 tcet->nb_table = 0; 422 } 423 424 static void spapr_tce_table_unrealize(DeviceState *dev) 425 { 426 SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); 427 428 vmstate_unregister(VMSTATE_IF(tcet), &vmstate_spapr_tce_table, tcet); 429 430 QLIST_REMOVE(tcet, list); 431 432 spapr_tce_table_disable(tcet); 433 } 434 435 MemoryRegion *spapr_tce_get_iommu(SpaprTceTable *tcet) 436 { 437 return &tcet->root; 438 } 439 440 static void spapr_tce_reset(DeviceState *dev) 441 { 442 SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); 443 size_t table_size = tcet->nb_table * sizeof(uint64_t); 444 445 if (tcet->nb_table) { 446 memset(tcet->table, 0, table_size); 447 } 448 } 449 450 static target_ulong put_tce_emu(SpaprTceTable *tcet, target_ulong ioba, 451 target_ulong tce) 452 { 453 IOMMUTLBEvent event; 454 hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 455 unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift; 456 457 if (index >= tcet->nb_table) { 458 hcall_dprintf("spapr_vio_put_tce on out-of-bounds IOBA 0x" 459 TARGET_FMT_lx "\n", ioba); 460 return H_PARAMETER; 461 } 462 463 tcet->table[index] = tce; 464 465 event.entry.target_as = &address_space_memory, 466 event.entry.iova = (ioba - tcet->bus_offset) & page_mask; 467 event.entry.translated_addr = tce & page_mask; 468 event.entry.addr_mask = ~page_mask; 469 event.entry.perm = spapr_tce_iommu_access_flags(tce); 470 event.type = event.entry.perm ? IOMMU_NOTIFIER_MAP : IOMMU_NOTIFIER_UNMAP; 471 memory_region_notify_iommu(&tcet->iommu, 0, event); 472 473 return H_SUCCESS; 474 } 475 476 static target_ulong h_put_tce_indirect(PowerPCCPU *cpu, 477 SpaprMachineState *spapr, 478 target_ulong opcode, target_ulong *args) 479 { 480 int i; 481 target_ulong liobn = args[0]; 482 target_ulong ioba = args[1]; 483 target_ulong ioba1 = ioba; 484 target_ulong tce_list = args[2]; 485 target_ulong npages = args[3]; 486 target_ulong ret = H_PARAMETER, tce = 0; 487 SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); 488 CPUState *cs = CPU(cpu); 489 hwaddr page_mask, page_size; 490 491 if (!tcet) { 492 return H_PARAMETER; 493 } 494 495 if ((npages > 512) || (tce_list & SPAPR_TCE_PAGE_MASK)) { 496 return H_PARAMETER; 497 } 498 499 page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 500 page_size = IOMMU_PAGE_SIZE(tcet->page_shift); 501 ioba &= page_mask; 502 503 for (i = 0; i < npages; ++i, ioba += page_size) { 504 tce = ldq_be_phys(cs->as, tce_list + i * sizeof(target_ulong)); 505 506 ret = put_tce_emu(tcet, ioba, tce); 507 if (ret) { 508 break; 509 } 510 } 511 512 /* Trace last successful or the first problematic entry */ 513 i = i ? (i - 1) : 0; 514 if (SPAPR_IS_PCI_LIOBN(liobn)) { 515 trace_spapr_iommu_pci_indirect(liobn, ioba1, tce_list, i, tce, ret); 516 } else { 517 trace_spapr_iommu_indirect(liobn, ioba1, tce_list, i, tce, ret); 518 } 519 return ret; 520 } 521 522 static target_ulong h_stuff_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, 523 target_ulong opcode, target_ulong *args) 524 { 525 int i; 526 target_ulong liobn = args[0]; 527 target_ulong ioba = args[1]; 528 target_ulong tce_value = args[2]; 529 target_ulong npages = args[3]; 530 target_ulong ret = H_PARAMETER; 531 SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); 532 hwaddr page_mask, page_size; 533 534 if (!tcet) { 535 return H_PARAMETER; 536 } 537 538 if (npages > tcet->nb_table) { 539 return H_PARAMETER; 540 } 541 542 page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 543 page_size = IOMMU_PAGE_SIZE(tcet->page_shift); 544 ioba &= page_mask; 545 546 for (i = 0; i < npages; ++i, ioba += page_size) { 547 ret = put_tce_emu(tcet, ioba, tce_value); 548 if (ret) { 549 break; 550 } 551 } 552 if (SPAPR_IS_PCI_LIOBN(liobn)) { 553 trace_spapr_iommu_pci_stuff(liobn, ioba, tce_value, npages, ret); 554 } else { 555 trace_spapr_iommu_stuff(liobn, ioba, tce_value, npages, ret); 556 } 557 558 return ret; 559 } 560 561 static target_ulong h_put_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, 562 target_ulong opcode, target_ulong *args) 563 { 564 target_ulong liobn = args[0]; 565 target_ulong ioba = args[1]; 566 target_ulong tce = args[2]; 567 target_ulong ret = H_PARAMETER; 568 SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); 569 570 if (tcet) { 571 hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 572 573 ioba &= page_mask; 574 575 ret = put_tce_emu(tcet, ioba, tce); 576 } 577 if (SPAPR_IS_PCI_LIOBN(liobn)) { 578 trace_spapr_iommu_pci_put(liobn, ioba, tce, ret); 579 } else { 580 trace_spapr_iommu_put(liobn, ioba, tce, ret); 581 } 582 583 return ret; 584 } 585 586 static target_ulong get_tce_emu(SpaprTceTable *tcet, target_ulong ioba, 587 target_ulong *tce) 588 { 589 unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift; 590 591 if (index >= tcet->nb_table) { 592 hcall_dprintf("spapr_iommu_get_tce on out-of-bounds IOBA 0x" 593 TARGET_FMT_lx "\n", ioba); 594 return H_PARAMETER; 595 } 596 597 *tce = tcet->table[index]; 598 599 return H_SUCCESS; 600 } 601 602 static target_ulong h_get_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, 603 target_ulong opcode, target_ulong *args) 604 { 605 target_ulong liobn = args[0]; 606 target_ulong ioba = args[1]; 607 target_ulong tce = 0; 608 target_ulong ret = H_PARAMETER; 609 SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); 610 611 if (tcet) { 612 hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 613 614 ioba &= page_mask; 615 616 ret = get_tce_emu(tcet, ioba, &tce); 617 if (!ret) { 618 args[0] = tce; 619 } 620 } 621 if (SPAPR_IS_PCI_LIOBN(liobn)) { 622 trace_spapr_iommu_pci_get(liobn, ioba, ret, tce); 623 } else { 624 trace_spapr_iommu_get(liobn, ioba, ret, tce); 625 } 626 627 return ret; 628 } 629 630 int spapr_dma_dt(void *fdt, int node_off, const char *propname, 631 uint32_t liobn, uint64_t window, uint32_t size) 632 { 633 uint32_t dma_prop[5]; 634 int ret; 635 636 dma_prop[0] = cpu_to_be32(liobn); 637 dma_prop[1] = cpu_to_be32(window >> 32); 638 dma_prop[2] = cpu_to_be32(window & 0xFFFFFFFF); 639 dma_prop[3] = 0; /* window size is 32 bits */ 640 dma_prop[4] = cpu_to_be32(size); 641 642 ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2); 643 if (ret < 0) { 644 return ret; 645 } 646 647 ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2); 648 if (ret < 0) { 649 return ret; 650 } 651 652 ret = fdt_setprop(fdt, node_off, propname, dma_prop, sizeof(dma_prop)); 653 if (ret < 0) { 654 return ret; 655 } 656 657 return 0; 658 } 659 660 int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname, 661 SpaprTceTable *tcet) 662 { 663 if (!tcet) { 664 return 0; 665 } 666 667 return spapr_dma_dt(fdt, node_off, propname, 668 tcet->liobn, 0, tcet->nb_table << tcet->page_shift); 669 } 670 671 static void spapr_tce_table_class_init(ObjectClass *klass, void *data) 672 { 673 DeviceClass *dc = DEVICE_CLASS(klass); 674 dc->realize = spapr_tce_table_realize; 675 dc->reset = spapr_tce_reset; 676 dc->unrealize = spapr_tce_table_unrealize; 677 /* Reason: This is just an internal device for handling the hypercalls */ 678 dc->user_creatable = false; 679 680 QLIST_INIT(&spapr_tce_tables); 681 682 /* hcall-tce */ 683 spapr_register_hypercall(H_PUT_TCE, h_put_tce); 684 spapr_register_hypercall(H_GET_TCE, h_get_tce); 685 spapr_register_hypercall(H_PUT_TCE_INDIRECT, h_put_tce_indirect); 686 spapr_register_hypercall(H_STUFF_TCE, h_stuff_tce); 687 } 688 689 static TypeInfo spapr_tce_table_info = { 690 .name = TYPE_SPAPR_TCE_TABLE, 691 .parent = TYPE_DEVICE, 692 .instance_size = sizeof(SpaprTceTable), 693 .class_init = spapr_tce_table_class_init, 694 }; 695 696 static void spapr_iommu_memory_region_class_init(ObjectClass *klass, void *data) 697 { 698 IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass); 699 700 imrc->translate = spapr_tce_translate_iommu; 701 imrc->replay = spapr_tce_replay; 702 imrc->get_min_page_size = spapr_tce_get_min_page_size; 703 imrc->notify_flag_changed = spapr_tce_notify_flag_changed; 704 imrc->get_attr = spapr_tce_get_attr; 705 } 706 707 static const TypeInfo spapr_iommu_memory_region_info = { 708 .parent = TYPE_IOMMU_MEMORY_REGION, 709 .name = TYPE_SPAPR_IOMMU_MEMORY_REGION, 710 .class_init = spapr_iommu_memory_region_class_init, 711 }; 712 713 static void register_types(void) 714 { 715 type_register_static(&spapr_tce_table_info); 716 type_register_static(&spapr_iommu_memory_region_info); 717 } 718 719 type_init(register_types); 720