hw/misc/tz-mpc.c

   1 /*
   2  * ARM AHB5 TrustZone Memory Protection Controller emulation
   3  *
   4  * Copyright (c) 2018 Linaro Limited
   5  * Written by Peter Maydell
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 or
   9  * (at your option) any later version.
  10  */
  11
  12 #include "qemu/osdep.h"
  13 #include "qemu/log.h"
  14 #include "qemu/module.h"
  15 #include "qapi/error.h"
  16 #include "trace.h"
  17 #include "hw/sysbus.h"
  18 #include "migration/vmstate.h"
  19 #include "hw/registerfields.h"
  20 #include "hw/irq.h"
  21 #include "hw/misc/tz-mpc.h"
  22 #include "hw/qdev-properties.h"
  23
  24 /* Our IOMMU has two IOMMU indexes, one for secure transactions and one for
  25  * non-secure transactions.
  26  */
  27 enum {
  28     IOMMU_IDX_S,
  29     IOMMU_IDX_NS,
  30     IOMMU_NUM_INDEXES,
  31 };
  32
  33 /* Config registers */
  34 REG32(CTRL, 0x00)
  35     FIELD(CTRL, SEC_RESP, 4, 1)
  36     FIELD(CTRL, AUTOINC, 8, 1)
  37     FIELD(CTRL, LOCKDOWN, 31, 1)
  38 REG32(BLK_MAX, 0x10)
  39 REG32(BLK_CFG, 0x14)
  40 REG32(BLK_IDX, 0x18)
  41 REG32(BLK_LUT, 0x1c)
  42 REG32(INT_STAT, 0x20)
  43     FIELD(INT_STAT, IRQ, 0, 1)
  44 REG32(INT_CLEAR, 0x24)
  45     FIELD(INT_CLEAR, IRQ, 0, 1)
  46 REG32(INT_EN, 0x28)
  47     FIELD(INT_EN, IRQ, 0, 1)
  48 REG32(INT_INFO1, 0x2c)
  49 REG32(INT_INFO2, 0x30)
  50     FIELD(INT_INFO2, HMASTER, 0, 16)
  51     FIELD(INT_INFO2, HNONSEC, 16, 1)
  52     FIELD(INT_INFO2, CFG_NS, 17, 1)
  53 REG32(INT_SET, 0x34)
  54     FIELD(INT_SET, IRQ, 0, 1)
  55 REG32(PIDR4, 0xfd0)
  56 REG32(PIDR5, 0xfd4)
  57 REG32(PIDR6, 0xfd8)
  58 REG32(PIDR7, 0xfdc)
  59 REG32(PIDR0, 0xfe0)
  60 REG32(PIDR1, 0xfe4)
  61 REG32(PIDR2, 0xfe8)
  62 REG32(PIDR3, 0xfec)
  63 REG32(CIDR0, 0xff0)
  64 REG32(CIDR1, 0xff4)
  65 REG32(CIDR2, 0xff8)
  66 REG32(CIDR3, 0xffc)
  67
  68 static const uint8_t tz_mpc_idregs[] = {
  69     0x04, 0x00, 0x00, 0x00,
  70     0x60, 0xb8, 0x1b, 0x00,
  71     0x0d, 0xf0, 0x05, 0xb1,
  72 };
  73
  74 static void tz_mpc_irq_update(TZMPC *s)
  75 {
  76     qemu_set_irq(s->irq, s->int_stat && s->int_en);
  77 }
  78
  79 static void tz_mpc_iommu_notify(TZMPC *s, uint32_t lutidx,
  80                                 uint32_t oldlut, uint32_t newlut)
  81 {
  82     /* Called when the LUT word at lutidx has changed from oldlut to newlut;
  83      * must call the IOMMU notifiers for the changed blocks.
  84      */
  85     IOMMUTLBEvent event = {
  86         .entry = {
  87             .addr_mask = s->blocksize - 1,
  88         }
  89     };
  90     hwaddr addr = lutidx * s->blocksize * 32;
  91     int i;
  92
  93     for (i = 0; i < 32; i++, addr += s->blocksize) {
  94         bool block_is_ns;
  95
  96         if (!((oldlut ^ newlut) & (1 << i))) {
  97             continue;
  98         }
  99         /* This changes the mappings for both the S and the NS space,
 100          * so we need to do four notifies: an UNMAP then a MAP for each.
 101          */
 102         block_is_ns = newlut & (1 << i);
 103
 104         trace_tz_mpc_iommu_notify(addr);
 105         event.entry.iova = addr;
 106         event.entry.translated_addr = addr;
 107
 108         event.type = IOMMU_NOTIFIER_UNMAP;
 109         event.entry.perm = IOMMU_NONE;
 110         memory_region_notify_iommu(&s->upstream, IOMMU_IDX_S, event);
 111         memory_region_notify_iommu(&s->upstream, IOMMU_IDX_NS, event);
 112
 113         event.type = IOMMU_NOTIFIER_MAP;
 114         event.entry.perm = IOMMU_RW;
 115         if (block_is_ns) {
 116             event.entry.target_as = &s->blocked_io_as;
 117         } else {
 118             event.entry.target_as = &s->downstream_as;
 119         }
 120         memory_region_notify_iommu(&s->upstream, IOMMU_IDX_S, event);
 121         if (block_is_ns) {
 122             event.entry.target_as = &s->downstream_as;
 123         } else {
 124             event.entry.target_as = &s->blocked_io_as;
 125         }
 126         memory_region_notify_iommu(&s->upstream, IOMMU_IDX_NS, event);
 127     }
 128 }
 129
 130 static void tz_mpc_autoinc_idx(TZMPC *s, unsigned access_size)
 131 {
 132     /* Auto-increment BLK_IDX if necessary */
 133     if (access_size == 4 && (s->ctrl & R_CTRL_AUTOINC_MASK)) {
 134         s->blk_idx++;
 135         s->blk_idx %= s->blk_max;
 136     }
 137 }
 138
 139 static MemTxResult tz_mpc_reg_read(void *opaque, hwaddr addr,
 140                                    uint64_t *pdata,
 141                                    unsigned size, MemTxAttrs attrs)
 142 {
 143     TZMPC *s = TZ_MPC(opaque);
 144     uint64_t r;
 145     uint32_t offset = addr & ~0x3;
 146
 147     if (!attrs.secure && offset < A_PIDR4) {
 148         /* NS accesses can only see the ID registers */
 149         qemu_log_mask(LOG_GUEST_ERROR,
 150                       "TZ MPC register read: NS access to offset 0x%x\n",
 151                       offset);
 152         r = 0;
 153         goto read_out;
 154     }
 155
 156     switch (offset) {
 157     case A_CTRL:
 158         r = s->ctrl;
 159         break;
 160     case A_BLK_MAX:
 161         r = s->blk_max - 1;
 162         break;
 163     case A_BLK_CFG:
 164         /* We are never in "init in progress state", so this just indicates
 165          * the block size. s->blocksize == (1 << BLK_CFG + 5), so
 166          * BLK_CFG == ctz32(s->blocksize) - 5
 167          */
 168         r = ctz32(s->blocksize) - 5;
 169         break;
 170     case A_BLK_IDX:
 171         r = s->blk_idx;
 172         break;
 173     case A_BLK_LUT:
 174         r = s->blk_lut[s->blk_idx];
 175         tz_mpc_autoinc_idx(s, size);
 176         break;
 177     case A_INT_STAT:
 178         r = s->int_stat;
 179         break;
 180     case A_INT_EN:
 181         r = s->int_en;
 182         break;
 183     case A_INT_INFO1:
 184         r = s->int_info1;
 185         break;
 186     case A_INT_INFO2:
 187         r = s->int_info2;
 188         break;
 189     case A_PIDR4:
 190     case A_PIDR5:
 191     case A_PIDR6:
 192     case A_PIDR7:
 193     case A_PIDR0:
 194     case A_PIDR1:
 195     case A_PIDR2:
 196     case A_PIDR3:
 197     case A_CIDR0:
 198     case A_CIDR1:
 199     case A_CIDR2:
 200     case A_CIDR3:
 201         r = tz_mpc_idregs[(offset - A_PIDR4) / 4];
 202         break;
 203     case A_INT_CLEAR:
 204     case A_INT_SET:
 205         qemu_log_mask(LOG_GUEST_ERROR,
 206                       "TZ MPC register read: write-only offset 0x%x\n",
 207                       offset);
 208         r = 0;
 209         break;
 210     default:
 211         qemu_log_mask(LOG_GUEST_ERROR,
 212                       "TZ MPC register read: bad offset 0x%x\n", offset);
 213         r = 0;
 214         break;
 215     }
 216
 217     if (size != 4) {
 218         /* None of our registers are read-sensitive (except BLK_LUT,
 219          * which can special case the "size not 4" case), so just
 220          * pull the right bytes out of the word read result.
 221          */
 222         r = extract32(r, (addr & 3) * 8, size * 8);
 223     }
 224
 225 read_out:
 226     trace_tz_mpc_reg_read(addr, r, size);
 227     *pdata = r;
 228     return MEMTX_OK;
 229 }
 230
 231 static MemTxResult tz_mpc_reg_write(void *opaque, hwaddr addr,
 232                                     uint64_t value,
 233                                     unsigned size, MemTxAttrs attrs)
 234 {
 235     TZMPC *s = TZ_MPC(opaque);
 236     uint32_t offset = addr & ~0x3;
 237
 238     trace_tz_mpc_reg_write(addr, value, size);
 239
 240     if (!attrs.secure && offset < A_PIDR4) {
 241         /* NS accesses can only see the ID registers */
 242         qemu_log_mask(LOG_GUEST_ERROR,
 243                       "TZ MPC register write: NS access to offset 0x%x\n",
 244                       offset);
 245         return MEMTX_OK;
 246     }
 247
 248     if (size != 4) {
 249         /* Expand the byte or halfword write to a full word size.
 250          * In most cases we can do this with zeroes; the exceptions
 251          * are CTRL, BLK_IDX and BLK_LUT.
 252          */
 253         uint32_t oldval;
 254
 255         switch (offset) {
 256         case A_CTRL:
 257             oldval = s->ctrl;
 258             break;
 259         case A_BLK_IDX:
 260             oldval = s->blk_idx;
 261             break;
 262         case A_BLK_LUT:
 263             oldval = s->blk_lut[s->blk_idx];
 264             break;
 265         default:
 266             oldval = 0;
 267             break;
 268         }
 269         value = deposit32(oldval, (addr & 3) * 8, size * 8, value);
 270     }
 271
 272     if ((s->ctrl & R_CTRL_LOCKDOWN_MASK) &&
 273         (offset == A_CTRL || offset == A_BLK_LUT || offset == A_INT_EN)) {
 274         /* Lockdown mode makes these three registers read-only, and
 275          * the only way out of it is to reset the device.
 276          */
 277         qemu_log_mask(LOG_GUEST_ERROR, "TZ MPC register write to offset 0x%x "
 278                       "while MPC is in lockdown mode\n", offset);
 279         return MEMTX_OK;
 280     }
 281
 282     switch (offset) {
 283     case A_CTRL:
 284         /* We don't implement the 'data gating' feature so all other bits
 285          * are reserved and we make them RAZ/WI.
 286          */
 287         s->ctrl = value & (R_CTRL_SEC_RESP_MASK |
 288                            R_CTRL_AUTOINC_MASK |
 289                            R_CTRL_LOCKDOWN_MASK);
 290         break;
 291     case A_BLK_IDX:
 292         s->blk_idx = value % s->blk_max;
 293         break;
 294     case A_BLK_LUT:
 295         tz_mpc_iommu_notify(s, s->blk_idx, s->blk_lut[s->blk_idx], value);
 296         s->blk_lut[s->blk_idx] = value;
 297         tz_mpc_autoinc_idx(s, size);
 298         break;
 299     case A_INT_CLEAR:
 300         if (value & R_INT_CLEAR_IRQ_MASK) {
 301             s->int_stat = 0;
 302             tz_mpc_irq_update(s);
 303         }
 304         break;
 305     case A_INT_EN:
 306         s->int_en = value & R_INT_EN_IRQ_MASK;
 307         tz_mpc_irq_update(s);
 308         break;
 309     case A_INT_SET:
 310         if (value & R_INT_SET_IRQ_MASK) {
 311             s->int_stat = R_INT_STAT_IRQ_MASK;
 312             tz_mpc_irq_update(s);
 313         }
 314         break;
 315     case A_PIDR4:
 316     case A_PIDR5:
 317     case A_PIDR6:
 318     case A_PIDR7:
 319     case A_PIDR0:
 320     case A_PIDR1:
 321     case A_PIDR2:
 322     case A_PIDR3:
 323     case A_CIDR0:
 324     case A_CIDR1:
 325     case A_CIDR2:
 326     case A_CIDR3:
 327         qemu_log_mask(LOG_GUEST_ERROR,
 328                       "TZ MPC register write: read-only offset 0x%x\n", offset);
 329         break;
 330     default:
 331         qemu_log_mask(LOG_GUEST_ERROR,
 332                       "TZ MPC register write: bad offset 0x%x\n", offset);
 333         break;
 334     }
 335
 336     return MEMTX_OK;
 337 }
 338
 339 static const MemoryRegionOps tz_mpc_reg_ops = {
 340     .read_with_attrs = tz_mpc_reg_read,
 341     .write_with_attrs = tz_mpc_reg_write,
 342     .endianness = DEVICE_LITTLE_ENDIAN,
 343     .valid.min_access_size = 1,
 344     .valid.max_access_size = 4,
 345     .impl.min_access_size = 1,
 346     .impl.max_access_size = 4,
 347 };
 348
 349 static inline bool tz_mpc_cfg_ns(TZMPC *s, hwaddr addr)
 350 {
 351     /* Return the cfg_ns bit from the LUT for the specified address */
 352     hwaddr blknum = addr / s->blocksize;
 353     hwaddr blkword = blknum / 32;
 354     uint32_t blkbit = 1U << (blknum % 32);
 355
 356     /* This would imply the address was larger than the size we
 357      * defined this memory region to be, so it can't happen.
 358      */
 359     assert(blkword < s->blk_max);
 360     return s->blk_lut[blkword] & blkbit;
 361 }
 362
 363 static MemTxResult tz_mpc_handle_block(TZMPC *s, hwaddr addr, MemTxAttrs attrs)
 364 {
 365     /* Handle a blocked transaction: raise IRQ, capture info, etc */
 366     if (!s->int_stat) {
 367         /* First blocked transfer: capture information into INT_INFO1 and
 368          * INT_INFO2. Subsequent transfers are still blocked but don't
 369          * capture information until the guest clears the interrupt.
 370          */
 371
 372         s->int_info1 = addr;
 373         s->int_info2 = 0;
 374         s->int_info2 = FIELD_DP32(s->int_info2, INT_INFO2, HMASTER,
 375                                   attrs.requester_id & 0xffff);
 376         s->int_info2 = FIELD_DP32(s->int_info2, INT_INFO2, HNONSEC,
 377                                   ~attrs.secure);
 378         s->int_info2 = FIELD_DP32(s->int_info2, INT_INFO2, CFG_NS,
 379                                   tz_mpc_cfg_ns(s, addr));
 380         s->int_stat |= R_INT_STAT_IRQ_MASK;
 381         tz_mpc_irq_update(s);
 382     }
 383
 384     /* Generate bus error if desired; otherwise RAZ/WI */
 385     return (s->ctrl & R_CTRL_SEC_RESP_MASK) ? MEMTX_ERROR : MEMTX_OK;
 386 }
 387
 388 /* Accesses only reach these read and write functions if the MPC is
 389  * blocking them; non-blocked accesses go directly to the downstream
 390  * memory region without passing through this code.
 391  */
 392 static MemTxResult tz_mpc_mem_blocked_read(void *opaque, hwaddr addr,
 393                                            uint64_t *pdata,
 394                                            unsigned size, MemTxAttrs attrs)
 395 {
 396     TZMPC *s = TZ_MPC(opaque);
 397
 398     trace_tz_mpc_mem_blocked_read(addr, size, attrs.secure);
 399
 400     *pdata = 0;
 401     return tz_mpc_handle_block(s, addr, attrs);
 402 }
 403
 404 static MemTxResult tz_mpc_mem_blocked_write(void *opaque, hwaddr addr,
 405                                             uint64_t value,
 406                                             unsigned size, MemTxAttrs attrs)
 407 {
 408     TZMPC *s = TZ_MPC(opaque);
 409
 410     trace_tz_mpc_mem_blocked_write(addr, value, size, attrs.secure);
 411
 412     return tz_mpc_handle_block(s, addr, attrs);
 413 }
 414
 415 static const MemoryRegionOps tz_mpc_mem_blocked_ops = {
 416     .read_with_attrs = tz_mpc_mem_blocked_read,
 417     .write_with_attrs = tz_mpc_mem_blocked_write,
 418     .endianness = DEVICE_LITTLE_ENDIAN,
 419     .valid.min_access_size = 1,
 420     .valid.max_access_size = 8,
 421     .impl.min_access_size = 1,
 422     .impl.max_access_size = 8,
 423 };
 424
 425 static IOMMUTLBEntry tz_mpc_translate(IOMMUMemoryRegion *iommu,
 426                                       hwaddr addr, IOMMUAccessFlags flags,
 427                                       int iommu_idx)
 428 {
 429     TZMPC *s = TZ_MPC(container_of(iommu, TZMPC, upstream));
 430     bool ok;
 431
 432     IOMMUTLBEntry ret = {
 433         .iova = addr & ~(s->blocksize - 1),
 434         .translated_addr = addr & ~(s->blocksize - 1),
 435         .addr_mask = s->blocksize - 1,
 436         .perm = IOMMU_RW,
 437     };
 438
 439     /* Look at the per-block configuration for this address, and
 440      * return a TLB entry directing the transaction at either
 441      * downstream_as or blocked_io_as, as appropriate.
 442      * If the LUT cfg_ns bit is 1, only non-secure transactions
 443      * may pass. If the bit is 0, only secure transactions may pass.
 444      */
 445     ok = tz_mpc_cfg_ns(s, addr) == (iommu_idx == IOMMU_IDX_NS);
 446
 447     trace_tz_mpc_translate(addr, flags,
 448                            iommu_idx == IOMMU_IDX_S ? "S" : "NS",
 449                            ok ? "pass" : "block");
 450
 451     ret.target_as = ok ? &s->downstream_as : &s->blocked_io_as;
 452     return ret;
 453 }
 454
 455 static int tz_mpc_attrs_to_index(IOMMUMemoryRegion *iommu, MemTxAttrs attrs)
 456 {
 457     /* We treat unspecified attributes like secure. Transactions with
 458      * unspecified attributes come from places like
 459      * rom_reset() for initial image load, and we want
 460      * those to pass through the from-reset "everything is secure" config.
 461      * All the real during-emulation transactions from the CPU will
 462      * specify attributes.
 463      */
 464     return (attrs.unspecified || attrs.secure) ? IOMMU_IDX_S : IOMMU_IDX_NS;
 465 }
 466
 467 static int tz_mpc_num_indexes(IOMMUMemoryRegion *iommu)
 468 {
 469     return IOMMU_NUM_INDEXES;
 470 }
 471
 472 static void tz_mpc_reset(DeviceState *dev)
 473 {
 474     TZMPC *s = TZ_MPC(dev);
 475
 476     s->ctrl = 0x00000100;
 477     s->blk_idx = 0;
 478     s->int_stat = 0;
 479     s->int_en = 1;
 480     s->int_info1 = 0;
 481     s->int_info2 = 0;
 482
 483     memset(s->blk_lut, 0, s->blk_max * sizeof(uint32_t));
 484 }
 485
 486 static void tz_mpc_init(Object *obj)
 487 {
 488     DeviceState *dev = DEVICE(obj);
 489     TZMPC *s = TZ_MPC(obj);
 490
 491     qdev_init_gpio_out_named(dev, &s->irq, "irq", 1);
 492 }
 493
 494 static void tz_mpc_realize(DeviceState *dev, Error **errp)
 495 {
 496     Object *obj = OBJECT(dev);
 497     SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
 498     TZMPC *s = TZ_MPC(dev);
 499     uint64_t size;
 500
 501     /* We can't create the upstream end of the port until realize,
 502      * as we don't know the size of the MR used as the downstream until then.
 503      * We insist on having a downstream, to avoid complicating the code
 504      * with handling the "don't know how big this is" case. It's easy
 505      * enough for the user to create an unimplemented_device as downstream
 506      * if they have nothing else to plug into this.
 507      */
 508     if (!s->downstream) {
 509         error_setg(errp, "MPC 'downstream' link not set");
 510         return;
 511     }
 512
 513     size = memory_region_size(s->downstream);
 514
 515     memory_region_init_iommu(&s->upstream, sizeof(s->upstream),
 516                              TYPE_TZ_MPC_IOMMU_MEMORY_REGION,
 517                              obj, "tz-mpc-upstream", size);
 518
 519     /* In real hardware the block size is configurable. In QEMU we could
 520      * make it configurable but will need it to be at least as big as the
 521      * target page size so we can execute out of the resulting MRs. Guest
 522      * software is supposed to check the block size using the BLK_CFG
 523      * register, so make it fixed at the page size.
 524      */
 525     s->blocksize = memory_region_iommu_get_min_page_size(&s->upstream);
 526     if (size % s->blocksize != 0) {
 527         error_setg(errp,
 528                    "MPC 'downstream' size %" PRId64
 529                    " is not a multiple of %" HWADDR_PRIx " bytes",
 530                    size, s->blocksize);
 531         object_unref(OBJECT(&s->upstream));
 532         return;
 533     }
 534
 535     /* BLK_MAX is the max value of BLK_IDX, which indexes an array of 32-bit
 536      * words, each bit of which indicates one block.
 537      */
 538     s->blk_max = DIV_ROUND_UP(size / s->blocksize, 32);
 539
 540     memory_region_init_io(&s->regmr, obj, &tz_mpc_reg_ops,
 541                           s, "tz-mpc-regs", 0x1000);
 542     sysbus_init_mmio(sbd, &s->regmr);
 543
 544     sysbus_init_mmio(sbd, MEMORY_REGION(&s->upstream));
 545
 546     /* This memory region is not exposed to users of this device as a
 547      * sysbus MMIO region, but is instead used internally as something
 548      * that our IOMMU translate function might direct accesses to.
 549      */
 550     memory_region_init_io(&s->blocked_io, obj, &tz_mpc_mem_blocked_ops,
 551                           s, "tz-mpc-blocked-io", size);
 552
 553     address_space_init(&s->downstream_as, s->downstream,
 554                        "tz-mpc-downstream");
 555     address_space_init(&s->blocked_io_as, &s->blocked_io,
 556                        "tz-mpc-blocked-io");
 557
 558     s->blk_lut = g_new0(uint32_t, s->blk_max);
 559 }
 560
 561 static int tz_mpc_post_load(void *opaque, int version_id)
 562 {
 563     TZMPC *s = TZ_MPC(opaque);
 564
 565     /* Check the incoming data doesn't point blk_idx off the end of blk_lut. */
 566     if (s->blk_idx >= s->blk_max) {
 567         return -1;
 568     }
 569     return 0;
 570 }
 571
 572 static const VMStateDescription tz_mpc_vmstate = {
 573     .name = "tz-mpc",
 574     .version_id = 1,
 575     .minimum_version_id = 1,
 576     .post_load = tz_mpc_post_load,
 577     .fields = (VMStateField[]) {
 578         VMSTATE_UINT32(ctrl, TZMPC),
 579         VMSTATE_UINT32(blk_idx, TZMPC),
 580         VMSTATE_UINT32(int_stat, TZMPC),
 581         VMSTATE_UINT32(int_en, TZMPC),
 582         VMSTATE_UINT32(int_info1, TZMPC),
 583         VMSTATE_UINT32(int_info2, TZMPC),
 584         VMSTATE_VARRAY_UINT32(blk_lut, TZMPC, blk_max,
 585                               0, vmstate_info_uint32, uint32_t),
 586         VMSTATE_END_OF_LIST()
 587     }
 588 };
 589
 590 static Property tz_mpc_properties[] = {
 591     DEFINE_PROP_LINK("downstream", TZMPC, downstream,
 592                      TYPE_MEMORY_REGION, MemoryRegion *),
 593     DEFINE_PROP_END_OF_LIST(),
 594 };
 595
 596 static void tz_mpc_class_init(ObjectClass *klass, void *data)
 597 {
 598     DeviceClass *dc = DEVICE_CLASS(klass);
 599
 600     dc->realize = tz_mpc_realize;
 601     dc->vmsd = &tz_mpc_vmstate;
 602     dc->reset = tz_mpc_reset;
 603     device_class_set_props(dc, tz_mpc_properties);
 604 }
 605
 606 static const TypeInfo tz_mpc_info = {
 607     .name = TYPE_TZ_MPC,
 608     .parent = TYPE_SYS_BUS_DEVICE,
 609     .instance_size = sizeof(TZMPC),
 610     .instance_init = tz_mpc_init,
 611     .class_init = tz_mpc_class_init,
 612 };
 613
 614 static void tz_mpc_iommu_memory_region_class_init(ObjectClass *klass,
 615                                                   void *data)
 616 {
 617     IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
 618
 619     imrc->translate = tz_mpc_translate;
 620     imrc->attrs_to_index = tz_mpc_attrs_to_index;
 621     imrc->num_indexes = tz_mpc_num_indexes;
 622 }
 623
 624 static const TypeInfo tz_mpc_iommu_memory_region_info = {
 625     .name = TYPE_TZ_MPC_IOMMU_MEMORY_REGION,
 626     .parent = TYPE_IOMMU_MEMORY_REGION,
 627     .class_init = tz_mpc_iommu_memory_region_class_init,
 628 };
 629
 630 static void tz_mpc_register_types(void)
 631 {
 632     type_register_static(&tz_mpc_info);
 633     type_register_static(&tz_mpc_iommu_memory_region_info);
 634 }
 635
 636 type_init(tz_mpc_register_types);