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 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 (old == IOMMU_NOTIFIER_NONE && new != IOMMU_NOTIFIER_NONE) { 216 spapr_tce_set_need_vfio(tbl, true); 217 } else if (old != IOMMU_NOTIFIER_NONE && new == IOMMU_NOTIFIER_NONE) { 218 spapr_tce_set_need_vfio(tbl, false); 219 } 220 return 0; 221 } 222 223 static int spapr_tce_table_post_load(void *opaque, int version_id) 224 { 225 SpaprTceTable *tcet = SPAPR_TCE_TABLE(opaque); 226 uint32_t old_nb_table = tcet->nb_table; 227 uint64_t old_bus_offset = tcet->bus_offset; 228 uint32_t old_page_shift = tcet->page_shift; 229 230 if (tcet->vdev) { 231 spapr_vio_set_bypass(tcet->vdev, tcet->bypass); 232 } 233 234 if (tcet->mig_nb_table != tcet->nb_table) { 235 spapr_tce_table_disable(tcet); 236 } 237 238 if (tcet->mig_nb_table) { 239 if (!tcet->nb_table) { 240 spapr_tce_table_enable(tcet, old_page_shift, old_bus_offset, 241 tcet->mig_nb_table); 242 } 243 244 memcpy(tcet->table, tcet->mig_table, 245 tcet->nb_table * sizeof(tcet->table[0])); 246 247 free(tcet->mig_table); 248 tcet->mig_table = NULL; 249 } 250 251 trace_spapr_iommu_post_load(tcet->liobn, old_nb_table, tcet->nb_table, 252 tcet->bus_offset, tcet->page_shift); 253 254 return 0; 255 } 256 257 static bool spapr_tce_table_ex_needed(void *opaque) 258 { 259 SpaprTceTable *tcet = opaque; 260 261 return tcet->bus_offset || tcet->page_shift != 0xC; 262 } 263 264 static const VMStateDescription vmstate_spapr_tce_table_ex = { 265 .name = "spapr_iommu_ex", 266 .version_id = 1, 267 .minimum_version_id = 1, 268 .needed = spapr_tce_table_ex_needed, 269 .fields = (VMStateField[]) { 270 VMSTATE_UINT64(bus_offset, SpaprTceTable), 271 VMSTATE_UINT32(page_shift, SpaprTceTable), 272 VMSTATE_END_OF_LIST() 273 }, 274 }; 275 276 static const VMStateDescription vmstate_spapr_tce_table = { 277 .name = "spapr_iommu", 278 .version_id = 2, 279 .minimum_version_id = 2, 280 .pre_save = spapr_tce_table_pre_save, 281 .post_load = spapr_tce_table_post_load, 282 .fields = (VMStateField []) { 283 /* Sanity check */ 284 VMSTATE_UINT32_EQUAL(liobn, SpaprTceTable, NULL), 285 286 /* IOMMU state */ 287 VMSTATE_UINT32(mig_nb_table, SpaprTceTable), 288 VMSTATE_BOOL(bypass, SpaprTceTable), 289 VMSTATE_VARRAY_UINT32_ALLOC(mig_table, SpaprTceTable, mig_nb_table, 0, 290 vmstate_info_uint64, uint64_t), 291 292 VMSTATE_END_OF_LIST() 293 }, 294 .subsections = (const VMStateDescription*[]) { 295 &vmstate_spapr_tce_table_ex, 296 NULL 297 } 298 }; 299 300 static void spapr_tce_table_realize(DeviceState *dev, Error **errp) 301 { 302 SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); 303 Object *tcetobj = OBJECT(tcet); 304 gchar *tmp; 305 306 tcet->fd = -1; 307 tcet->need_vfio = false; 308 tmp = g_strdup_printf("tce-root-%x", tcet->liobn); 309 memory_region_init(&tcet->root, tcetobj, tmp, UINT64_MAX); 310 g_free(tmp); 311 312 tmp = g_strdup_printf("tce-iommu-%x", tcet->liobn); 313 memory_region_init_iommu(&tcet->iommu, sizeof(tcet->iommu), 314 TYPE_SPAPR_IOMMU_MEMORY_REGION, 315 tcetobj, tmp, 0); 316 g_free(tmp); 317 318 QLIST_INSERT_HEAD(&spapr_tce_tables, tcet, list); 319 320 vmstate_register(VMSTATE_IF(tcet), tcet->liobn, &vmstate_spapr_tce_table, 321 tcet); 322 } 323 324 void spapr_tce_set_need_vfio(SpaprTceTable *tcet, bool need_vfio) 325 { 326 size_t table_size = tcet->nb_table * sizeof(uint64_t); 327 uint64_t *oldtable; 328 int newfd = -1; 329 330 g_assert(need_vfio != tcet->need_vfio); 331 332 tcet->need_vfio = need_vfio; 333 334 if (!need_vfio || (tcet->fd != -1 && kvmppc_has_cap_spapr_vfio())) { 335 return; 336 } 337 338 oldtable = tcet->table; 339 340 tcet->table = spapr_tce_alloc_table(tcet->liobn, 341 tcet->page_shift, 342 tcet->bus_offset, 343 tcet->nb_table, 344 &newfd, 345 need_vfio); 346 memcpy(tcet->table, oldtable, table_size); 347 348 spapr_tce_free_table(oldtable, tcet->fd, tcet->nb_table); 349 350 tcet->fd = newfd; 351 } 352 353 SpaprTceTable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn) 354 { 355 SpaprTceTable *tcet; 356 gchar *tmp; 357 358 if (spapr_tce_find_by_liobn(liobn)) { 359 error_report("Attempted to create TCE table with duplicate" 360 " LIOBN 0x%x", liobn); 361 return NULL; 362 } 363 364 tcet = SPAPR_TCE_TABLE(object_new(TYPE_SPAPR_TCE_TABLE)); 365 tcet->liobn = liobn; 366 367 tmp = g_strdup_printf("tce-table-%x", liobn); 368 object_property_add_child(OBJECT(owner), tmp, OBJECT(tcet)); 369 g_free(tmp); 370 object_unref(OBJECT(tcet)); 371 372 object_property_set_bool(OBJECT(tcet), true, "realized", NULL); 373 374 return tcet; 375 } 376 377 void spapr_tce_table_enable(SpaprTceTable *tcet, 378 uint32_t page_shift, uint64_t bus_offset, 379 uint32_t nb_table) 380 { 381 if (tcet->nb_table) { 382 warn_report("trying to enable already enabled TCE table"); 383 return; 384 } 385 386 tcet->bus_offset = bus_offset; 387 tcet->page_shift = page_shift; 388 tcet->nb_table = nb_table; 389 tcet->table = spapr_tce_alloc_table(tcet->liobn, 390 tcet->page_shift, 391 tcet->bus_offset, 392 tcet->nb_table, 393 &tcet->fd, 394 tcet->need_vfio); 395 396 memory_region_set_size(MEMORY_REGION(&tcet->iommu), 397 (uint64_t)tcet->nb_table << tcet->page_shift); 398 memory_region_add_subregion(&tcet->root, tcet->bus_offset, 399 MEMORY_REGION(&tcet->iommu)); 400 } 401 402 void spapr_tce_table_disable(SpaprTceTable *tcet) 403 { 404 if (!tcet->nb_table) { 405 return; 406 } 407 408 memory_region_del_subregion(&tcet->root, MEMORY_REGION(&tcet->iommu)); 409 memory_region_set_size(MEMORY_REGION(&tcet->iommu), 0); 410 411 spapr_tce_free_table(tcet->table, tcet->fd, tcet->nb_table); 412 tcet->fd = -1; 413 tcet->table = NULL; 414 tcet->bus_offset = 0; 415 tcet->page_shift = 0; 416 tcet->nb_table = 0; 417 } 418 419 static void spapr_tce_table_unrealize(DeviceState *dev) 420 { 421 SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); 422 423 vmstate_unregister(VMSTATE_IF(tcet), &vmstate_spapr_tce_table, tcet); 424 425 QLIST_REMOVE(tcet, list); 426 427 spapr_tce_table_disable(tcet); 428 } 429 430 MemoryRegion *spapr_tce_get_iommu(SpaprTceTable *tcet) 431 { 432 return &tcet->root; 433 } 434 435 static void spapr_tce_reset(DeviceState *dev) 436 { 437 SpaprTceTable *tcet = SPAPR_TCE_TABLE(dev); 438 size_t table_size = tcet->nb_table * sizeof(uint64_t); 439 440 if (tcet->nb_table) { 441 memset(tcet->table, 0, table_size); 442 } 443 } 444 445 static target_ulong put_tce_emu(SpaprTceTable *tcet, target_ulong ioba, 446 target_ulong tce) 447 { 448 IOMMUTLBEntry entry; 449 hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 450 unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift; 451 452 if (index >= tcet->nb_table) { 453 hcall_dprintf("spapr_vio_put_tce on out-of-bounds IOBA 0x" 454 TARGET_FMT_lx "\n", ioba); 455 return H_PARAMETER; 456 } 457 458 tcet->table[index] = tce; 459 460 entry.target_as = &address_space_memory, 461 entry.iova = (ioba - tcet->bus_offset) & page_mask; 462 entry.translated_addr = tce & page_mask; 463 entry.addr_mask = ~page_mask; 464 entry.perm = spapr_tce_iommu_access_flags(tce); 465 memory_region_notify_iommu(&tcet->iommu, 0, entry); 466 467 return H_SUCCESS; 468 } 469 470 static target_ulong h_put_tce_indirect(PowerPCCPU *cpu, 471 SpaprMachineState *spapr, 472 target_ulong opcode, target_ulong *args) 473 { 474 int i; 475 target_ulong liobn = args[0]; 476 target_ulong ioba = args[1]; 477 target_ulong ioba1 = ioba; 478 target_ulong tce_list = args[2]; 479 target_ulong npages = args[3]; 480 target_ulong ret = H_PARAMETER, tce = 0; 481 SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); 482 CPUState *cs = CPU(cpu); 483 hwaddr page_mask, page_size; 484 485 if (!tcet) { 486 return H_PARAMETER; 487 } 488 489 if ((npages > 512) || (tce_list & SPAPR_TCE_PAGE_MASK)) { 490 return H_PARAMETER; 491 } 492 493 page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 494 page_size = IOMMU_PAGE_SIZE(tcet->page_shift); 495 ioba &= page_mask; 496 497 for (i = 0; i < npages; ++i, ioba += page_size) { 498 tce = ldq_be_phys(cs->as, tce_list + i * sizeof(target_ulong)); 499 500 ret = put_tce_emu(tcet, ioba, tce); 501 if (ret) { 502 break; 503 } 504 } 505 506 /* Trace last successful or the first problematic entry */ 507 i = i ? (i - 1) : 0; 508 if (SPAPR_IS_PCI_LIOBN(liobn)) { 509 trace_spapr_iommu_pci_indirect(liobn, ioba1, tce_list, i, tce, ret); 510 } else { 511 trace_spapr_iommu_indirect(liobn, ioba1, tce_list, i, tce, ret); 512 } 513 return ret; 514 } 515 516 static target_ulong h_stuff_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, 517 target_ulong opcode, target_ulong *args) 518 { 519 int i; 520 target_ulong liobn = args[0]; 521 target_ulong ioba = args[1]; 522 target_ulong tce_value = args[2]; 523 target_ulong npages = args[3]; 524 target_ulong ret = H_PARAMETER; 525 SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); 526 hwaddr page_mask, page_size; 527 528 if (!tcet) { 529 return H_PARAMETER; 530 } 531 532 if (npages > tcet->nb_table) { 533 return H_PARAMETER; 534 } 535 536 page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 537 page_size = IOMMU_PAGE_SIZE(tcet->page_shift); 538 ioba &= page_mask; 539 540 for (i = 0; i < npages; ++i, ioba += page_size) { 541 ret = put_tce_emu(tcet, ioba, tce_value); 542 if (ret) { 543 break; 544 } 545 } 546 if (SPAPR_IS_PCI_LIOBN(liobn)) { 547 trace_spapr_iommu_pci_stuff(liobn, ioba, tce_value, npages, ret); 548 } else { 549 trace_spapr_iommu_stuff(liobn, ioba, tce_value, npages, ret); 550 } 551 552 return ret; 553 } 554 555 static target_ulong h_put_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, 556 target_ulong opcode, target_ulong *args) 557 { 558 target_ulong liobn = args[0]; 559 target_ulong ioba = args[1]; 560 target_ulong tce = args[2]; 561 target_ulong ret = H_PARAMETER; 562 SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); 563 564 if (tcet) { 565 hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 566 567 ioba &= page_mask; 568 569 ret = put_tce_emu(tcet, ioba, tce); 570 } 571 if (SPAPR_IS_PCI_LIOBN(liobn)) { 572 trace_spapr_iommu_pci_put(liobn, ioba, tce, ret); 573 } else { 574 trace_spapr_iommu_put(liobn, ioba, tce, ret); 575 } 576 577 return ret; 578 } 579 580 static target_ulong get_tce_emu(SpaprTceTable *tcet, target_ulong ioba, 581 target_ulong *tce) 582 { 583 unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift; 584 585 if (index >= tcet->nb_table) { 586 hcall_dprintf("spapr_iommu_get_tce on out-of-bounds IOBA 0x" 587 TARGET_FMT_lx "\n", ioba); 588 return H_PARAMETER; 589 } 590 591 *tce = tcet->table[index]; 592 593 return H_SUCCESS; 594 } 595 596 static target_ulong h_get_tce(PowerPCCPU *cpu, SpaprMachineState *spapr, 597 target_ulong opcode, target_ulong *args) 598 { 599 target_ulong liobn = args[0]; 600 target_ulong ioba = args[1]; 601 target_ulong tce = 0; 602 target_ulong ret = H_PARAMETER; 603 SpaprTceTable *tcet = spapr_tce_find_by_liobn(liobn); 604 605 if (tcet) { 606 hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift); 607 608 ioba &= page_mask; 609 610 ret = get_tce_emu(tcet, ioba, &tce); 611 if (!ret) { 612 args[0] = tce; 613 } 614 } 615 if (SPAPR_IS_PCI_LIOBN(liobn)) { 616 trace_spapr_iommu_pci_get(liobn, ioba, ret, tce); 617 } else { 618 trace_spapr_iommu_get(liobn, ioba, ret, tce); 619 } 620 621 return ret; 622 } 623 624 int spapr_dma_dt(void *fdt, int node_off, const char *propname, 625 uint32_t liobn, uint64_t window, uint32_t size) 626 { 627 uint32_t dma_prop[5]; 628 int ret; 629 630 dma_prop[0] = cpu_to_be32(liobn); 631 dma_prop[1] = cpu_to_be32(window >> 32); 632 dma_prop[2] = cpu_to_be32(window & 0xFFFFFFFF); 633 dma_prop[3] = 0; /* window size is 32 bits */ 634 dma_prop[4] = cpu_to_be32(size); 635 636 ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2); 637 if (ret < 0) { 638 return ret; 639 } 640 641 ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2); 642 if (ret < 0) { 643 return ret; 644 } 645 646 ret = fdt_setprop(fdt, node_off, propname, dma_prop, sizeof(dma_prop)); 647 if (ret < 0) { 648 return ret; 649 } 650 651 return 0; 652 } 653 654 int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname, 655 SpaprTceTable *tcet) 656 { 657 if (!tcet) { 658 return 0; 659 } 660 661 return spapr_dma_dt(fdt, node_off, propname, 662 tcet->liobn, 0, tcet->nb_table << tcet->page_shift); 663 } 664 665 static void spapr_tce_table_class_init(ObjectClass *klass, void *data) 666 { 667 DeviceClass *dc = DEVICE_CLASS(klass); 668 dc->realize = spapr_tce_table_realize; 669 dc->reset = spapr_tce_reset; 670 dc->unrealize = spapr_tce_table_unrealize; 671 /* Reason: This is just an internal device for handling the hypercalls */ 672 dc->user_creatable = false; 673 674 QLIST_INIT(&spapr_tce_tables); 675 676 /* hcall-tce */ 677 spapr_register_hypercall(H_PUT_TCE, h_put_tce); 678 spapr_register_hypercall(H_GET_TCE, h_get_tce); 679 spapr_register_hypercall(H_PUT_TCE_INDIRECT, h_put_tce_indirect); 680 spapr_register_hypercall(H_STUFF_TCE, h_stuff_tce); 681 } 682 683 static TypeInfo spapr_tce_table_info = { 684 .name = TYPE_SPAPR_TCE_TABLE, 685 .parent = TYPE_DEVICE, 686 .instance_size = sizeof(SpaprTceTable), 687 .class_init = spapr_tce_table_class_init, 688 }; 689 690 static void spapr_iommu_memory_region_class_init(ObjectClass *klass, void *data) 691 { 692 IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass); 693 694 imrc->translate = spapr_tce_translate_iommu; 695 imrc->replay = spapr_tce_replay; 696 imrc->get_min_page_size = spapr_tce_get_min_page_size; 697 imrc->notify_flag_changed = spapr_tce_notify_flag_changed; 698 imrc->get_attr = spapr_tce_get_attr; 699 } 700 701 static const TypeInfo spapr_iommu_memory_region_info = { 702 .parent = TYPE_IOMMU_MEMORY_REGION, 703 .name = TYPE_SPAPR_IOMMU_MEMORY_REGION, 704 .class_init = spapr_iommu_memory_region_class_init, 705 }; 706 707 static void register_types(void) 708 { 709 type_register_static(&spapr_tce_table_info); 710 type_register_static(&spapr_iommu_memory_region_info); 711 } 712 713 type_init(register_types); 714