hw/ppc/spapr_iommu.c

   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 #include "qemu/osdep.h"
  20 #include "qemu/error-report.h"
  21 #include "hw/hw.h"
  22 #include "qemu/log.h"
  23 #include "sysemu/kvm.h"
  24 #include "hw/qdev.h"
  25 #include "kvm_ppc.h"
  26 #include "sysemu/dma.h"
  27 #include "exec/address-spaces.h"
  28 #include "trace.h"
  29
  30 #include "hw/ppc/spapr.h"
  31 #include "hw/ppc/spapr_vio.h"
  32
  33 #include <libfdt.h>
  34
  35 enum sPAPRTCEAccess {
  36     SPAPR_TCE_FAULT = 0,
  37     SPAPR_TCE_RO = 1,
  38     SPAPR_TCE_WO = 2,
  39     SPAPR_TCE_RW = 3,
  40 };
  41
  42 #define IOMMU_PAGE_SIZE(shift)      (1ULL << (shift))
  43 #define IOMMU_PAGE_MASK(shift)      (~(IOMMU_PAGE_SIZE(shift) - 1))
  44
  45 static QLIST_HEAD(spapr_tce_tables, sPAPRTCETable) spapr_tce_tables;
  46
  47 sPAPRTCETable *spapr_tce_find_by_liobn(target_ulong liobn)
  48 {
  49     sPAPRTCETable *tcet;
  50
  51     if (liobn & 0xFFFFFFFF00000000ULL) {
  52         hcall_dprintf("Request for out-of-bounds LIOBN 0x" TARGET_FMT_lx "\n",
  53                       liobn);
  54         return NULL;
  55     }
  56
  57     QLIST_FOREACH(tcet, &spapr_tce_tables, list) {
  58         if (tcet->liobn == (uint32_t)liobn) {
  59             return tcet;
  60         }
  61     }
  62
  63     return NULL;
  64 }
  65
  66 static IOMMUAccessFlags spapr_tce_iommu_access_flags(uint64_t tce)
  67 {
  68     switch (tce & SPAPR_TCE_RW) {
  69     case SPAPR_TCE_FAULT:
  70         return IOMMU_NONE;
  71     case SPAPR_TCE_RO:
  72         return IOMMU_RO;
  73     case SPAPR_TCE_WO:
  74         return IOMMU_WO;
  75     default: /* SPAPR_TCE_RW */
  76         return IOMMU_RW;
  77     }
  78 }
  79
  80 static uint64_t *spapr_tce_alloc_table(uint32_t liobn,
  81                                        uint32_t page_shift,
  82                                        uint64_t bus_offset,
  83                                        uint32_t nb_table,
  84                                        int *fd,
  85                                        bool need_vfio)
  86 {
  87     uint64_t *table = NULL;
  88
  89     if (kvm_enabled()) {
  90         table = kvmppc_create_spapr_tce(liobn, page_shift, bus_offset, nb_table,
  91                                         fd, need_vfio);
  92     }
  93
  94     if (!table) {
  95         *fd = -1;
  96         table = g_malloc0(nb_table * sizeof(uint64_t));
  97     }
  98
  99     trace_spapr_iommu_new_table(liobn, table, *fd);
 100
 101     return table;
 102 }
 103
 104 static void spapr_tce_free_table(uint64_t *table, int fd, uint32_t nb_table)
 105 {
 106     if (!kvm_enabled() ||
 107         (kvmppc_remove_spapr_tce(table, fd, nb_table) != 0)) {
 108         g_free(table);
 109     }
 110 }
 111
 112 /* Called from RCU critical section */
 113 static IOMMUTLBEntry spapr_tce_translate_iommu(IOMMUMemoryRegion *iommu,
 114                                                hwaddr addr,
 115                                                IOMMUAccessFlags flag)
 116 {
 117     sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu);
 118     uint64_t tce;
 119     IOMMUTLBEntry ret = {
 120         .target_as = &address_space_memory,
 121         .iova = 0,
 122         .translated_addr = 0,
 123         .addr_mask = ~(hwaddr)0,
 124         .perm = IOMMU_NONE,
 125     };
 126
 127     if ((addr >> tcet->page_shift) < tcet->nb_table) {
 128         /* Check if we are in bound */
 129         hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 130
 131         tce = tcet->table[addr >> tcet->page_shift];
 132         ret.iova = addr & page_mask;
 133         ret.translated_addr = tce & page_mask;
 134         ret.addr_mask = ~page_mask;
 135         ret.perm = spapr_tce_iommu_access_flags(tce);
 136     }
 137     trace_spapr_iommu_xlate(tcet->liobn, addr, ret.iova, ret.perm,
 138                             ret.addr_mask);
 139
 140     return ret;
 141 }
 142
 143 static void spapr_tce_table_pre_save(void *opaque)
 144 {
 145     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(opaque);
 146
 147     tcet->mig_table = tcet->table;
 148     tcet->mig_nb_table = tcet->nb_table;
 149
 150     trace_spapr_iommu_pre_save(tcet->liobn, tcet->mig_nb_table,
 151                                tcet->bus_offset, tcet->page_shift);
 152 }
 153
 154 static uint64_t spapr_tce_get_min_page_size(IOMMUMemoryRegion *iommu)
 155 {
 156     sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu);
 157
 158     return 1ULL << tcet->page_shift;
 159 }
 160
 161 static void spapr_tce_notify_flag_changed(IOMMUMemoryRegion *iommu,
 162                                           IOMMUNotifierFlag old,
 163                                           IOMMUNotifierFlag new)
 164 {
 165     struct sPAPRTCETable *tbl = container_of(iommu, sPAPRTCETable, iommu);
 166
 167     if (old == IOMMU_NOTIFIER_NONE && new != IOMMU_NOTIFIER_NONE) {
 168         spapr_tce_set_need_vfio(tbl, true);
 169     } else if (old != IOMMU_NOTIFIER_NONE && new == IOMMU_NOTIFIER_NONE) {
 170         spapr_tce_set_need_vfio(tbl, false);
 171     }
 172 }
 173
 174 static int spapr_tce_table_post_load(void *opaque, int version_id)
 175 {
 176     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(opaque);
 177     uint32_t old_nb_table = tcet->nb_table;
 178     uint64_t old_bus_offset = tcet->bus_offset;
 179     uint32_t old_page_shift = tcet->page_shift;
 180
 181     if (tcet->vdev) {
 182         spapr_vio_set_bypass(tcet->vdev, tcet->bypass);
 183     }
 184
 185     if (tcet->mig_nb_table != tcet->nb_table) {
 186         spapr_tce_table_disable(tcet);
 187     }
 188
 189     if (tcet->mig_nb_table) {
 190         if (!tcet->nb_table) {
 191             spapr_tce_table_enable(tcet, old_page_shift, old_bus_offset,
 192                                    tcet->mig_nb_table);
 193         }
 194
 195         memcpy(tcet->table, tcet->mig_table,
 196                tcet->nb_table * sizeof(tcet->table[0]));
 197
 198         free(tcet->mig_table);
 199         tcet->mig_table = NULL;
 200     }
 201
 202     trace_spapr_iommu_post_load(tcet->liobn, old_nb_table, tcet->nb_table,
 203                                 tcet->bus_offset, tcet->page_shift);
 204
 205     return 0;
 206 }
 207
 208 static bool spapr_tce_table_ex_needed(void *opaque)
 209 {
 210     sPAPRTCETable *tcet = opaque;
 211
 212     return tcet->bus_offset || tcet->page_shift != 0xC;
 213 }
 214
 215 static const VMStateDescription vmstate_spapr_tce_table_ex = {
 216     .name = "spapr_iommu_ex",
 217     .version_id = 1,
 218     .minimum_version_id = 1,
 219     .needed = spapr_tce_table_ex_needed,
 220     .fields = (VMStateField[]) {
 221         VMSTATE_UINT64(bus_offset, sPAPRTCETable),
 222         VMSTATE_UINT32(page_shift, sPAPRTCETable),
 223         VMSTATE_END_OF_LIST()
 224     },
 225 };
 226
 227 static const VMStateDescription vmstate_spapr_tce_table = {
 228     .name = "spapr_iommu",
 229     .version_id = 2,
 230     .minimum_version_id = 2,
 231     .pre_save = spapr_tce_table_pre_save,
 232     .post_load = spapr_tce_table_post_load,
 233     .fields      = (VMStateField []) {
 234         /* Sanity check */
 235         VMSTATE_UINT32_EQUAL(liobn, sPAPRTCETable, NULL),
 236
 237         /* IOMMU state */
 238         VMSTATE_UINT32(mig_nb_table, sPAPRTCETable),
 239         VMSTATE_BOOL(bypass, sPAPRTCETable),
 240         VMSTATE_VARRAY_UINT32_ALLOC(mig_table, sPAPRTCETable, mig_nb_table, 0,
 241                                     vmstate_info_uint64, uint64_t),
 242
 243         VMSTATE_END_OF_LIST()
 244     },
 245     .subsections = (const VMStateDescription*[]) {
 246         &vmstate_spapr_tce_table_ex,
 247         NULL
 248     }
 249 };
 250
 251 static int spapr_tce_table_realize(DeviceState *dev)
 252 {
 253     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(dev);
 254     Object *tcetobj = OBJECT(tcet);
 255     char tmp[32];
 256
 257     tcet->fd = -1;
 258     tcet->need_vfio = false;
 259     snprintf(tmp, sizeof(tmp), "tce-root-%x", tcet->liobn);
 260     memory_region_init(&tcet->root, tcetobj, tmp, UINT64_MAX);
 261
 262     snprintf(tmp, sizeof(tmp), "tce-iommu-%x", tcet->liobn);
 263     memory_region_init_iommu(&tcet->iommu, sizeof(tcet->iommu),
 264                              TYPE_SPAPR_IOMMU_MEMORY_REGION,
 265                              tcetobj, tmp, 0);
 266
 267     QLIST_INSERT_HEAD(&spapr_tce_tables, tcet, list);
 268
 269     vmstate_register(DEVICE(tcet), tcet->liobn, &vmstate_spapr_tce_table,
 270                      tcet);
 271
 272     return 0;
 273 }
 274
 275 void spapr_tce_set_need_vfio(sPAPRTCETable *tcet, bool need_vfio)
 276 {
 277     size_t table_size = tcet->nb_table * sizeof(uint64_t);
 278     void *newtable;
 279
 280     if (need_vfio == tcet->need_vfio) {
 281         /* Nothing to do */
 282         return;
 283     }
 284
 285     if (!need_vfio) {
 286         /* FIXME: We don't support transition back to KVM accelerated
 287          * TCEs yet */
 288         return;
 289     }
 290
 291     tcet->need_vfio = true;
 292
 293     if (tcet->fd < 0) {
 294         /* Table is already in userspace, nothing to be do */
 295         return;
 296     }
 297
 298     newtable = g_malloc(table_size);
 299     memcpy(newtable, tcet->table, table_size);
 300
 301     kvmppc_remove_spapr_tce(tcet->table, tcet->fd, tcet->nb_table);
 302
 303     tcet->fd = -1;
 304     tcet->table = newtable;
 305 }
 306
 307 sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn)
 308 {
 309     sPAPRTCETable *tcet;
 310     char tmp[32];
 311
 312     if (spapr_tce_find_by_liobn(liobn)) {
 313         error_report("Attempted to create TCE table with duplicate"
 314                 " LIOBN 0x%x", liobn);
 315         return NULL;
 316     }
 317
 318     tcet = SPAPR_TCE_TABLE(object_new(TYPE_SPAPR_TCE_TABLE));
 319     tcet->liobn = liobn;
 320
 321     snprintf(tmp, sizeof(tmp), "tce-table-%x", liobn);
 322     object_property_add_child(OBJECT(owner), tmp, OBJECT(tcet), NULL);
 323
 324     object_property_set_bool(OBJECT(tcet), true, "realized", NULL);
 325
 326     return tcet;
 327 }
 328
 329 void spapr_tce_table_enable(sPAPRTCETable *tcet,
 330                             uint32_t page_shift, uint64_t bus_offset,
 331                             uint32_t nb_table)
 332 {
 333     if (tcet->nb_table) {
 334         warn_report("trying to enable already enabled TCE table");
 335         return;
 336     }
 337
 338     tcet->bus_offset = bus_offset;
 339     tcet->page_shift = page_shift;
 340     tcet->nb_table = nb_table;
 341     tcet->table = spapr_tce_alloc_table(tcet->liobn,
 342                                         tcet->page_shift,
 343                                         tcet->bus_offset,
 344                                         tcet->nb_table,
 345                                         &tcet->fd,
 346                                         tcet->need_vfio);
 347
 348     memory_region_set_size(MEMORY_REGION(&tcet->iommu),
 349                            (uint64_t)tcet->nb_table << tcet->page_shift);
 350     memory_region_add_subregion(&tcet->root, tcet->bus_offset,
 351                                 MEMORY_REGION(&tcet->iommu));
 352 }
 353
 354 void spapr_tce_table_disable(sPAPRTCETable *tcet)
 355 {
 356     if (!tcet->nb_table) {
 357         return;
 358     }
 359
 360     memory_region_del_subregion(&tcet->root, MEMORY_REGION(&tcet->iommu));
 361     memory_region_set_size(MEMORY_REGION(&tcet->iommu), 0);
 362
 363     spapr_tce_free_table(tcet->table, tcet->fd, tcet->nb_table);
 364     tcet->fd = -1;
 365     tcet->table = NULL;
 366     tcet->bus_offset = 0;
 367     tcet->page_shift = 0;
 368     tcet->nb_table = 0;
 369 }
 370
 371 static void spapr_tce_table_unrealize(DeviceState *dev, Error **errp)
 372 {
 373     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(dev);
 374
 375     QLIST_REMOVE(tcet, list);
 376
 377     spapr_tce_table_disable(tcet);
 378 }
 379
 380 MemoryRegion *spapr_tce_get_iommu(sPAPRTCETable *tcet)
 381 {
 382     return &tcet->root;
 383 }
 384
 385 static void spapr_tce_reset(DeviceState *dev)
 386 {
 387     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(dev);
 388     size_t table_size = tcet->nb_table * sizeof(uint64_t);
 389
 390     if (tcet->nb_table) {
 391         memset(tcet->table, 0, table_size);
 392     }
 393 }
 394
 395 static target_ulong put_tce_emu(sPAPRTCETable *tcet, target_ulong ioba,
 396                                 target_ulong tce)
 397 {
 398     IOMMUTLBEntry entry;
 399     hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 400     unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift;
 401
 402     if (index >= tcet->nb_table) {
 403         hcall_dprintf("spapr_vio_put_tce on out-of-bounds IOBA 0x"
 404                       TARGET_FMT_lx "\n", ioba);
 405         return H_PARAMETER;
 406     }
 407
 408     tcet->table[index] = tce;
 409
 410     entry.target_as = &address_space_memory,
 411     entry.iova = (ioba - tcet->bus_offset) & page_mask;
 412     entry.translated_addr = tce & page_mask;
 413     entry.addr_mask = ~page_mask;
 414     entry.perm = spapr_tce_iommu_access_flags(tce);
 415     memory_region_notify_iommu(&tcet->iommu, entry);
 416
 417     return H_SUCCESS;
 418 }
 419
 420 static target_ulong h_put_tce_indirect(PowerPCCPU *cpu,
 421                                        sPAPRMachineState *spapr,
 422                                        target_ulong opcode, target_ulong *args)
 423 {
 424     int i;
 425     target_ulong liobn = args[0];
 426     target_ulong ioba = args[1];
 427     target_ulong ioba1 = ioba;
 428     target_ulong tce_list = args[2];
 429     target_ulong npages = args[3];
 430     target_ulong ret = H_PARAMETER, tce = 0;
 431     sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn);
 432     CPUState *cs = CPU(cpu);
 433     hwaddr page_mask, page_size;
 434
 435     if (!tcet) {
 436         return H_PARAMETER;
 437     }
 438
 439     if ((npages > 512) || (tce_list & SPAPR_TCE_PAGE_MASK)) {
 440         return H_PARAMETER;
 441     }
 442
 443     page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 444     page_size = IOMMU_PAGE_SIZE(tcet->page_shift);
 445     ioba &= page_mask;
 446
 447     for (i = 0; i < npages; ++i, ioba += page_size) {
 448         tce = ldq_be_phys(cs->as, tce_list + i * sizeof(target_ulong));
 449
 450         ret = put_tce_emu(tcet, ioba, tce);
 451         if (ret) {
 452             break;
 453         }
 454     }
 455
 456     /* Trace last successful or the first problematic entry */
 457     i = i ? (i - 1) : 0;
 458     if (SPAPR_IS_PCI_LIOBN(liobn)) {
 459         trace_spapr_iommu_pci_indirect(liobn, ioba1, tce_list, i, tce, ret);
 460     } else {
 461         trace_spapr_iommu_indirect(liobn, ioba1, tce_list, i, tce, ret);
 462     }
 463     return ret;
 464 }
 465
 466 static target_ulong h_stuff_tce(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 467                               target_ulong opcode, target_ulong *args)
 468 {
 469     int i;
 470     target_ulong liobn = args[0];
 471     target_ulong ioba = args[1];
 472     target_ulong tce_value = args[2];
 473     target_ulong npages = args[3];
 474     target_ulong ret = H_PARAMETER;
 475     sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn);
 476     hwaddr page_mask, page_size;
 477
 478     if (!tcet) {
 479         return H_PARAMETER;
 480     }
 481
 482     if (npages > tcet->nb_table) {
 483         return H_PARAMETER;
 484     }
 485
 486     page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 487     page_size = IOMMU_PAGE_SIZE(tcet->page_shift);
 488     ioba &= page_mask;
 489
 490     for (i = 0; i < npages; ++i, ioba += page_size) {
 491         ret = put_tce_emu(tcet, ioba, tce_value);
 492         if (ret) {
 493             break;
 494         }
 495     }
 496     if (SPAPR_IS_PCI_LIOBN(liobn)) {
 497         trace_spapr_iommu_pci_stuff(liobn, ioba, tce_value, npages, ret);
 498     } else {
 499         trace_spapr_iommu_stuff(liobn, ioba, tce_value, npages, ret);
 500     }
 501
 502     return ret;
 503 }
 504
 505 static target_ulong h_put_tce(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 506                               target_ulong opcode, target_ulong *args)
 507 {
 508     target_ulong liobn = args[0];
 509     target_ulong ioba = args[1];
 510     target_ulong tce = args[2];
 511     target_ulong ret = H_PARAMETER;
 512     sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn);
 513
 514     if (tcet) {
 515         hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 516
 517         ioba &= page_mask;
 518
 519         ret = put_tce_emu(tcet, ioba, tce);
 520     }
 521     if (SPAPR_IS_PCI_LIOBN(liobn)) {
 522         trace_spapr_iommu_pci_put(liobn, ioba, tce, ret);
 523     } else {
 524         trace_spapr_iommu_put(liobn, ioba, tce, ret);
 525     }
 526
 527     return ret;
 528 }
 529
 530 static target_ulong get_tce_emu(sPAPRTCETable *tcet, target_ulong ioba,
 531                                 target_ulong *tce)
 532 {
 533     unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift;
 534
 535     if (index >= tcet->nb_table) {
 536         hcall_dprintf("spapr_iommu_get_tce on out-of-bounds IOBA 0x"
 537                       TARGET_FMT_lx "\n", ioba);
 538         return H_PARAMETER;
 539     }
 540
 541     *tce = tcet->table[index];
 542
 543     return H_SUCCESS;
 544 }
 545
 546 static target_ulong h_get_tce(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 547                               target_ulong opcode, target_ulong *args)
 548 {
 549     target_ulong liobn = args[0];
 550     target_ulong ioba = args[1];
 551     target_ulong tce = 0;
 552     target_ulong ret = H_PARAMETER;
 553     sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn);
 554
 555     if (tcet) {
 556         hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 557
 558         ioba &= page_mask;
 559
 560         ret = get_tce_emu(tcet, ioba, &tce);
 561         if (!ret) {
 562             args[0] = tce;
 563         }
 564     }
 565     if (SPAPR_IS_PCI_LIOBN(liobn)) {
 566         trace_spapr_iommu_pci_get(liobn, ioba, ret, tce);
 567     } else {
 568         trace_spapr_iommu_get(liobn, ioba, ret, tce);
 569     }
 570
 571     return ret;
 572 }
 573
 574 int spapr_dma_dt(void *fdt, int node_off, const char *propname,
 575                  uint32_t liobn, uint64_t window, uint32_t size)
 576 {
 577     uint32_t dma_prop[5];
 578     int ret;
 579
 580     dma_prop[0] = cpu_to_be32(liobn);
 581     dma_prop[1] = cpu_to_be32(window >> 32);
 582     dma_prop[2] = cpu_to_be32(window & 0xFFFFFFFF);
 583     dma_prop[3] = 0; /* window size is 32 bits */
 584     dma_prop[4] = cpu_to_be32(size);
 585
 586     ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2);
 587     if (ret < 0) {
 588         return ret;
 589     }
 590
 591     ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2);
 592     if (ret < 0) {
 593         return ret;
 594     }
 595
 596     ret = fdt_setprop(fdt, node_off, propname, dma_prop, sizeof(dma_prop));
 597     if (ret < 0) {
 598         return ret;
 599     }
 600
 601     return 0;
 602 }
 603
 604 int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname,
 605                       sPAPRTCETable *tcet)
 606 {
 607     if (!tcet) {
 608         return 0;
 609     }
 610
 611     return spapr_dma_dt(fdt, node_off, propname,
 612                         tcet->liobn, 0, tcet->nb_table << tcet->page_shift);
 613 }
 614
 615 static void spapr_tce_table_class_init(ObjectClass *klass, void *data)
 616 {
 617     DeviceClass *dc = DEVICE_CLASS(klass);
 618     dc->init = spapr_tce_table_realize;
 619     dc->reset = spapr_tce_reset;
 620     dc->unrealize = spapr_tce_table_unrealize;
 621
 622     QLIST_INIT(&spapr_tce_tables);
 623
 624     /* hcall-tce */
 625     spapr_register_hypercall(H_PUT_TCE, h_put_tce);
 626     spapr_register_hypercall(H_GET_TCE, h_get_tce);
 627     spapr_register_hypercall(H_PUT_TCE_INDIRECT, h_put_tce_indirect);
 628     spapr_register_hypercall(H_STUFF_TCE, h_stuff_tce);
 629 }
 630
 631 static TypeInfo spapr_tce_table_info = {
 632     .name = TYPE_SPAPR_TCE_TABLE,
 633     .parent = TYPE_DEVICE,
 634     .instance_size = sizeof(sPAPRTCETable),
 635     .class_init = spapr_tce_table_class_init,
 636 };
 637
 638 static void spapr_iommu_memory_region_class_init(ObjectClass *klass, void *data)
 639 {
 640     IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
 641
 642     imrc->translate = spapr_tce_translate_iommu;
 643     imrc->get_min_page_size = spapr_tce_get_min_page_size;
 644     imrc->notify_flag_changed = spapr_tce_notify_flag_changed;
 645 }
 646
 647 static const TypeInfo spapr_iommu_memory_region_info = {
 648     .parent = TYPE_IOMMU_MEMORY_REGION,
 649     .name = TYPE_SPAPR_IOMMU_MEMORY_REGION,
 650     .class_init = spapr_iommu_memory_region_class_init,
 651 };
 652
 653 static void register_types(void)
 654 {
 655     type_register_static(&spapr_tce_table_info);
 656     type_register_static(&spapr_iommu_memory_region_info);
 657 }
 658
 659 type_init(register_types);