src/dev/pci/device.cc

   1 /*
   2  * Copyright (c) 2013, 2015 ARM Limited
   3  * All rights reserved
   4  *
   5  * The license below extends only to copyright in the software and shall
   6  * not be construed as granting a license to any other intellectual
   7  * property including but not limited to intellectual property relating
   8  * to a hardware implementation of the functionality of the software
   9  * licensed hereunder.  You may use the software subject to the license
  10  * terms below provided that you ensure that this notice is replicated
  11  * unmodified and in its entirety in all distributions of the software,
  12  * modified or unmodified, in source code or in binary form.
  13  *
  14  * Copyright (c) 2004-2005 The Regents of The University of Michigan
  15  * All rights reserved.
  16  *
  17  * Redistribution and use in source and binary forms, with or without
  18  * modification, are permitted provided that the following conditions are
  19  * met: redistributions of source code must retain the above copyright
  20  * notice, this list of conditions and the following disclaimer;
  21  * redistributions in binary form must reproduce the above copyright
  22  * notice, this list of conditions and the following disclaimer in the
  23  * documentation and/or other materials provided with the distribution;
  24  * neither the name of the copyright holders nor the names of its
  25  * contributors may be used to endorse or promote products derived from
  26  * this software without specific prior written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  29  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  30  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  31  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  32  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  33  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  34  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  35  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  36  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  37  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  38  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  39  *
  40  * Authors: Ali Saidi
  41  *          Andrew Schultz
  42  *          Miguel Serrano
  43  */
  44
  45 /* @file
  46  * A single PCI device configuration space entry.
  47  */
  48
  49 #include "dev/pci/device.hh"
  50
  51 #include <list>
  52 #include <string>
  53 #include <vector>
  54
  55 #include "base/inifile.hh"
  56 #include "base/intmath.hh"
  57 #include "base/logging.hh"
  58 #include "base/str.hh"
  59 #include "base/trace.hh"
  60 #include "debug/PciDevice.hh"
  61 #include "mem/packet.hh"
  62 #include "mem/packet_access.hh"
  63 #include "sim/byteswap.hh"
  64 #include "sim/core.hh"
  65
  66 PciDevice::PciDevice(const PciDeviceParams *p)
  67     : DmaDevice(p),
  68       _busAddr(p->pci_bus, p->pci_dev, p->pci_func),
  69       PMCAP_BASE(p->PMCAPBaseOffset),
  70       PMCAP_ID_OFFSET(p->PMCAPBaseOffset+PMCAP_ID),
  71       PMCAP_PC_OFFSET(p->PMCAPBaseOffset+PMCAP_PC),
  72       PMCAP_PMCS_OFFSET(p->PMCAPBaseOffset+PMCAP_PMCS),
  73       MSICAP_BASE(p->MSICAPBaseOffset),
  74       MSIXCAP_BASE(p->MSIXCAPBaseOffset),
  75       MSIXCAP_ID_OFFSET(p->MSIXCAPBaseOffset+MSIXCAP_ID),
  76       MSIXCAP_MXC_OFFSET(p->MSIXCAPBaseOffset+MSIXCAP_MXC),
  77       MSIXCAP_MTAB_OFFSET(p->MSIXCAPBaseOffset+MSIXCAP_MTAB),
  78       MSIXCAP_MPBA_OFFSET(p->MSIXCAPBaseOffset+MSIXCAP_MPBA),
  79       PXCAP_BASE(p->PXCAPBaseOffset),
  80
  81       hostInterface(p->host->registerDevice(this, _busAddr,
  82                                             (PciIntPin)p->InterruptPin)),
  83       pioDelay(p->pio_latency),
  84       configDelay(p->config_latency)
  85 {
  86     fatal_if(p->InterruptPin >= 5,
  87              "Invalid PCI interrupt '%i' specified.", p->InterruptPin);
  88
  89     config.vendor = htole(p->VendorID);
  90     config.device = htole(p->DeviceID);
  91     config.command = htole(p->Command);
  92     config.status = htole(p->Status);
  93     config.revision = htole(p->Revision);
  94     config.progIF = htole(p->ProgIF);
  95     config.subClassCode = htole(p->SubClassCode);
  96     config.classCode = htole(p->ClassCode);
  97     config.cacheLineSize = htole(p->CacheLineSize);
  98     config.latencyTimer = htole(p->LatencyTimer);
  99     config.headerType = htole(p->HeaderType);
 100     config.bist = htole(p->BIST);
 101
 102     config.baseAddr[0] = htole(p->BAR0);
 103     config.baseAddr[1] = htole(p->BAR1);
 104     config.baseAddr[2] = htole(p->BAR2);
 105     config.baseAddr[3] = htole(p->BAR3);
 106     config.baseAddr[4] = htole(p->BAR4);
 107     config.baseAddr[5] = htole(p->BAR5);
 108     config.cardbusCIS = htole(p->CardbusCIS);
 109     config.subsystemVendorID = htole(p->SubsystemVendorID);
 110     config.subsystemID = htole(p->SubsystemID);
 111     config.expansionROM = htole(p->ExpansionROM);
 112     config.capabilityPtr = htole(p->CapabilityPtr);
 113     // Zero out the 7 bytes of reserved space in the PCI Config space register.
 114     bzero(config.reserved, 7*sizeof(uint8_t));
 115     config.interruptLine = htole(p->InterruptLine);
 116     config.interruptPin = htole(p->InterruptPin);
 117     config.minimumGrant = htole(p->MinimumGrant);
 118     config.maximumLatency = htole(p->MaximumLatency);
 119
 120     // Initialize the capability lists
 121     // These structs are bitunions, meaning the data is stored in host
 122     // endianess and must be converted to Little Endian when accessed
 123     // by the guest
 124     // PMCAP
 125     pmcap.pid = (uint16_t)p->PMCAPCapId; // pid.cid
 126     pmcap.pid |= (uint16_t)p->PMCAPNextCapability << 8; //pid.next
 127     pmcap.pc = p->PMCAPCapabilities;
 128     pmcap.pmcs = p->PMCAPCtrlStatus;
 129
 130     // MSICAP
 131     msicap.mid = (uint16_t)p->MSICAPCapId; //mid.cid
 132     msicap.mid |= (uint16_t)p->MSICAPNextCapability << 8; //mid.next
 133     msicap.mc = p->MSICAPMsgCtrl;
 134     msicap.ma = p->MSICAPMsgAddr;
 135     msicap.mua = p->MSICAPMsgUpperAddr;
 136     msicap.md = p->MSICAPMsgData;
 137     msicap.mmask = p->MSICAPMaskBits;
 138     msicap.mpend = p->MSICAPPendingBits;
 139
 140     // MSIXCAP
 141     msixcap.mxid = (uint16_t)p->MSIXCAPCapId; //mxid.cid
 142     msixcap.mxid |= (uint16_t)p->MSIXCAPNextCapability << 8; //mxid.next
 143     msixcap.mxc = p->MSIXMsgCtrl;
 144     msixcap.mtab = p->MSIXTableOffset;
 145     msixcap.mpba = p->MSIXPbaOffset;
 146
 147     // allocate MSIX structures if MSIXCAP_BASE
 148     // indicates the MSIXCAP is being used by having a
 149     // non-zero base address.
 150     // The MSIX tables are stored by the guest in
 151     // little endian byte-order as according the
 152     // PCIe specification.  Make sure to take the proper
 153     // actions when manipulating these tables on the host
 154     uint16_t msixcap_mxc_ts = msixcap.mxc & 0x07ff;
 155     if (MSIXCAP_BASE != 0x0) {
 156         int msix_vecs = msixcap_mxc_ts + 1;
 157         MSIXTable tmp1 = {{0UL,0UL,0UL,0UL}};
 158         msix_table.resize(msix_vecs, tmp1);
 159
 160         MSIXPbaEntry tmp2 = {0};
 161         int pba_size = msix_vecs / MSIXVECS_PER_PBA;
 162         if ((msix_vecs % MSIXVECS_PER_PBA) > 0) {
 163             pba_size++;
 164         }
 165         msix_pba.resize(pba_size, tmp2);
 166     }
 167     MSIX_TABLE_OFFSET = msixcap.mtab & 0xfffffffc;
 168     MSIX_TABLE_END = MSIX_TABLE_OFFSET +
 169                      (msixcap_mxc_ts + 1) * sizeof(MSIXTable);
 170     MSIX_PBA_OFFSET = msixcap.mpba & 0xfffffffc;
 171     MSIX_PBA_END = MSIX_PBA_OFFSET +
 172                    ((msixcap_mxc_ts + 1) / MSIXVECS_PER_PBA)
 173                    * sizeof(MSIXPbaEntry);
 174     if (((msixcap_mxc_ts + 1) % MSIXVECS_PER_PBA) > 0) {
 175         MSIX_PBA_END += sizeof(MSIXPbaEntry);
 176     }
 177
 178     // PXCAP
 179     pxcap.pxid = (uint16_t)p->PXCAPCapId; //pxid.cid
 180     pxcap.pxid |= (uint16_t)p->PXCAPNextCapability << 8; //pxid.next
 181     pxcap.pxcap = p->PXCAPCapabilities;
 182     pxcap.pxdcap = p->PXCAPDevCapabilities;
 183     pxcap.pxdc = p->PXCAPDevCtrl;
 184     pxcap.pxds = p->PXCAPDevStatus;
 185     pxcap.pxlcap = p->PXCAPLinkCap;
 186     pxcap.pxlc = p->PXCAPLinkCtrl;
 187     pxcap.pxls = p->PXCAPLinkStatus;
 188     pxcap.pxdcap2 = p->PXCAPDevCap2;
 189     pxcap.pxdc2 = p->PXCAPDevCtrl2;
 190
 191     BARSize[0] = p->BAR0Size;
 192     BARSize[1] = p->BAR1Size;
 193     BARSize[2] = p->BAR2Size;
 194     BARSize[3] = p->BAR3Size;
 195     BARSize[4] = p->BAR4Size;
 196     BARSize[5] = p->BAR5Size;
 197
 198     legacyIO[0] = p->BAR0LegacyIO;
 199     legacyIO[1] = p->BAR1LegacyIO;
 200     legacyIO[2] = p->BAR2LegacyIO;
 201     legacyIO[3] = p->BAR3LegacyIO;
 202     legacyIO[4] = p->BAR4LegacyIO;
 203     legacyIO[5] = p->BAR5LegacyIO;
 204
 205     for (int i = 0; i < 6; ++i) {
 206         if (legacyIO[i]) {
 207             BARAddrs[i] = p->LegacyIOBase + letoh(config.baseAddr[i]);
 208             config.baseAddr[i] = 0;
 209         } else {
 210             BARAddrs[i] = 0;
 211             uint32_t barsize = BARSize[i];
 212             if (barsize != 0 && !isPowerOf2(barsize)) {
 213                 fatal("BAR %d size %d is not a power of 2\n", i, BARSize[i]);
 214             }
 215         }
 216     }
 217 }
 218
 219 Tick
 220 PciDevice::readConfig(PacketPtr pkt)
 221 {
 222     int offset = pkt->getAddr() & PCI_CONFIG_SIZE;
 223
 224     /* Return 0 for accesses to unimplemented PCI configspace areas */
 225     if (offset >= PCI_DEVICE_SPECIFIC &&
 226         offset < PCI_CONFIG_SIZE) {
 227         warn_once("Device specific PCI config space "
 228                   "not implemented for %s!\n", this->name());
 229         switch (pkt->getSize()) {
 230             case sizeof(uint8_t):
 231                 pkt->set<uint8_t>(0);
 232                 break;
 233             case sizeof(uint16_t):
 234                 pkt->set<uint16_t>(0);
 235                 break;
 236             case sizeof(uint32_t):
 237                 pkt->set<uint32_t>(0);
 238                 break;
 239             default:
 240                 panic("invalid access size(?) for PCI configspace!\n");
 241         }
 242     } else if (offset > PCI_CONFIG_SIZE) {
 243         panic("Out-of-range access to PCI config space!\n");
 244     }
 245
 246     switch (pkt->getSize()) {
 247       case sizeof(uint8_t):
 248         pkt->set<uint8_t>(config.data[offset]);
 249         DPRINTF(PciDevice,
 250             "readConfig:  dev %#x func %#x reg %#x 1 bytes: data = %#x\n",
 251             _busAddr.dev, _busAddr.func, offset,
 252             (uint32_t)pkt->get<uint8_t>());
 253         break;
 254       case sizeof(uint16_t):
 255         pkt->set<uint16_t>(*(uint16_t*)&config.data[offset]);
 256         DPRINTF(PciDevice,
 257             "readConfig:  dev %#x func %#x reg %#x 2 bytes: data = %#x\n",
 258             _busAddr.dev, _busAddr.func, offset,
 259             (uint32_t)pkt->get<uint16_t>());
 260         break;
 261       case sizeof(uint32_t):
 262         pkt->set<uint32_t>(*(uint32_t*)&config.data[offset]);
 263         DPRINTF(PciDevice,
 264             "readConfig:  dev %#x func %#x reg %#x 4 bytes: data = %#x\n",
 265             _busAddr.dev, _busAddr.func, offset,
 266             (uint32_t)pkt->get<uint32_t>());
 267         break;
 268       default:
 269         panic("invalid access size(?) for PCI configspace!\n");
 270     }
 271     pkt->makeAtomicResponse();
 272     return configDelay;
 273
 274 }
 275
 276 AddrRangeList
 277 PciDevice::getAddrRanges() const
 278 {
 279     AddrRangeList ranges;
 280     int x = 0;
 281     for (x = 0; x < 6; x++)
 282         if (BARAddrs[x] != 0)
 283             ranges.push_back(RangeSize(BARAddrs[x],BARSize[x]));
 284     return ranges;
 285 }
 286
 287 Tick
 288 PciDevice::writeConfig(PacketPtr pkt)
 289 {
 290     int offset = pkt->getAddr() & PCI_CONFIG_SIZE;
 291
 292     /* No effect if we write to config space that is not implemented*/
 293     if (offset >= PCI_DEVICE_SPECIFIC &&
 294         offset < PCI_CONFIG_SIZE) {
 295         warn_once("Device specific PCI config space "
 296                   "not implemented for %s!\n", this->name());
 297         switch (pkt->getSize()) {
 298             case sizeof(uint8_t):
 299             case sizeof(uint16_t):
 300             case sizeof(uint32_t):
 301                 break;
 302             default:
 303                 panic("invalid access size(?) for PCI configspace!\n");
 304         }
 305     } else if (offset > PCI_CONFIG_SIZE) {
 306         panic("Out-of-range access to PCI config space!\n");
 307     }
 308
 309     switch (pkt->getSize()) {
 310       case sizeof(uint8_t):
 311         switch (offset) {
 312           case PCI0_INTERRUPT_LINE:
 313             config.interruptLine = pkt->get<uint8_t>();
 314             break;
 315           case PCI_CACHE_LINE_SIZE:
 316             config.cacheLineSize = pkt->get<uint8_t>();
 317             break;
 318           case PCI_LATENCY_TIMER:
 319             config.latencyTimer = pkt->get<uint8_t>();
 320             break;
 321           /* Do nothing for these read-only registers */
 322           case PCI0_INTERRUPT_PIN:
 323           case PCI0_MINIMUM_GRANT:
 324           case PCI0_MAXIMUM_LATENCY:
 325           case PCI_CLASS_CODE:
 326           case PCI_REVISION_ID:
 327             break;
 328           default:
 329             panic("writing to a read only register");
 330         }
 331         DPRINTF(PciDevice,
 332             "writeConfig: dev %#x func %#x reg %#x 1 bytes: data = %#x\n",
 333             _busAddr.dev, _busAddr.func, offset,
 334             (uint32_t)pkt->get<uint8_t>());
 335         break;
 336       case sizeof(uint16_t):
 337         switch (offset) {
 338           case PCI_COMMAND:
 339             config.command = pkt->get<uint8_t>();
 340             break;
 341           case PCI_STATUS:
 342             config.status = pkt->get<uint8_t>();
 343             break;
 344           case PCI_CACHE_LINE_SIZE:
 345             config.cacheLineSize = pkt->get<uint8_t>();
 346             break;
 347           default:
 348             panic("writing to a read only register");
 349         }
 350         DPRINTF(PciDevice,
 351             "writeConfig: dev %#x func %#x reg %#x 2 bytes: data = %#x\n",
 352             _busAddr.dev, _busAddr.func, offset,
 353             (uint32_t)pkt->get<uint16_t>());
 354         break;
 355       case sizeof(uint32_t):
 356         switch (offset) {
 357           case PCI0_BASE_ADDR0:
 358           case PCI0_BASE_ADDR1:
 359           case PCI0_BASE_ADDR2:
 360           case PCI0_BASE_ADDR3:
 361           case PCI0_BASE_ADDR4:
 362           case PCI0_BASE_ADDR5:
 363             {
 364                 int barnum = BAR_NUMBER(offset);
 365
 366                 if (!legacyIO[barnum]) {
 367                     // convert BAR values to host endianness
 368                     uint32_t he_old_bar = letoh(config.baseAddr[barnum]);
 369                     uint32_t he_new_bar = letoh(pkt->get<uint32_t>());
 370
 371                     uint32_t bar_mask =
 372                         BAR_IO_SPACE(he_old_bar) ? BAR_IO_MASK : BAR_MEM_MASK;
 373
 374                     // Writing 0xffffffff to a BAR tells the card to set the
 375                     // value of the bar to a bitmask indicating the size of
 376                     // memory it needs
 377                     if (he_new_bar == 0xffffffff) {
 378                         he_new_bar = ~(BARSize[barnum] - 1);
 379                     } else {
 380                         // does it mean something special to write 0 to a BAR?
 381                         he_new_bar &= ~bar_mask;
 382                         if (he_new_bar) {
 383                             BARAddrs[barnum] = BAR_IO_SPACE(he_old_bar) ?
 384                                 hostInterface.pioAddr(he_new_bar) :
 385                                 hostInterface.memAddr(he_new_bar);
 386                             pioPort.sendRangeChange();
 387                         }
 388                     }
 389                     config.baseAddr[barnum] = htole((he_new_bar & ~bar_mask) |
 390                                                     (he_old_bar & bar_mask));
 391                 }
 392             }
 393             break;
 394
 395           case PCI0_ROM_BASE_ADDR:
 396             if (letoh(pkt->get<uint32_t>()) == 0xfffffffe)
 397                 config.expansionROM = htole((uint32_t)0xffffffff);
 398             else
 399                 config.expansionROM = pkt->get<uint32_t>();
 400             break;
 401
 402           case PCI_COMMAND:
 403             // This could also clear some of the error bits in the Status
 404             // register. However they should never get set, so lets ignore
 405             // it for now
 406             config.command = pkt->get<uint32_t>();
 407             break;
 408
 409           default:
 410             DPRINTF(PciDevice, "Writing to a read only register");
 411         }
 412         DPRINTF(PciDevice,
 413             "writeConfig: dev %#x func %#x reg %#x 4 bytes: data = %#x\n",
 414             _busAddr.dev, _busAddr.func, offset,
 415             (uint32_t)pkt->get<uint32_t>());
 416         break;
 417       default:
 418         panic("invalid access size(?) for PCI configspace!\n");
 419     }
 420     pkt->makeAtomicResponse();
 421     return configDelay;
 422 }
 423
 424 void
 425 PciDevice::serialize(CheckpointOut &cp) const
 426 {
 427     SERIALIZE_ARRAY(BARSize, sizeof(BARSize) / sizeof(BARSize[0]));
 428     SERIALIZE_ARRAY(BARAddrs, sizeof(BARAddrs) / sizeof(BARAddrs[0]));
 429     SERIALIZE_ARRAY(config.data, sizeof(config.data) / sizeof(config.data[0]));
 430
 431     // serialize the capability list registers
 432     paramOut(cp, csprintf("pmcap.pid"), uint16_t(pmcap.pid));
 433     paramOut(cp, csprintf("pmcap.pc"), uint16_t(pmcap.pc));
 434     paramOut(cp, csprintf("pmcap.pmcs"), uint16_t(pmcap.pmcs));
 435
 436     paramOut(cp, csprintf("msicap.mid"), uint16_t(msicap.mid));
 437     paramOut(cp, csprintf("msicap.mc"), uint16_t(msicap.mc));
 438     paramOut(cp, csprintf("msicap.ma"), uint32_t(msicap.ma));
 439     SERIALIZE_SCALAR(msicap.mua);
 440     paramOut(cp, csprintf("msicap.md"), uint16_t(msicap.md));
 441     SERIALIZE_SCALAR(msicap.mmask);
 442     SERIALIZE_SCALAR(msicap.mpend);
 443
 444     paramOut(cp, csprintf("msixcap.mxid"), uint16_t(msixcap.mxid));
 445     paramOut(cp, csprintf("msixcap.mxc"), uint16_t(msixcap.mxc));
 446     paramOut(cp, csprintf("msixcap.mtab"), uint32_t(msixcap.mtab));
 447     paramOut(cp, csprintf("msixcap.mpba"), uint32_t(msixcap.mpba));
 448
 449     // Only serialize if we have a non-zero base address
 450     if (MSIXCAP_BASE != 0x0) {
 451         uint16_t msixcap_mxc_ts = msixcap.mxc & 0x07ff;
 452         int msix_array_size = msixcap_mxc_ts + 1;
 453         int pba_array_size = msix_array_size/MSIXVECS_PER_PBA;
 454         if ((msix_array_size % MSIXVECS_PER_PBA) > 0) {
 455             pba_array_size++;
 456         }
 457
 458         SERIALIZE_SCALAR(msix_array_size);
 459         SERIALIZE_SCALAR(pba_array_size);
 460
 461         for (int i = 0; i < msix_array_size; i++) {
 462             paramOut(cp, csprintf("msix_table[%d].addr_lo", i),
 463                      msix_table[i].fields.addr_lo);
 464             paramOut(cp, csprintf("msix_table[%d].addr_hi", i),
 465                      msix_table[i].fields.addr_hi);
 466             paramOut(cp, csprintf("msix_table[%d].msg_data", i),
 467                      msix_table[i].fields.msg_data);
 468             paramOut(cp, csprintf("msix_table[%d].vec_ctrl", i),
 469                      msix_table[i].fields.vec_ctrl);
 470         }
 471         for (int i = 0; i < pba_array_size; i++) {
 472             paramOut(cp, csprintf("msix_pba[%d].bits", i),
 473                      msix_pba[i].bits);
 474         }
 475     }
 476
 477     paramOut(cp, csprintf("pxcap.pxid"), uint16_t(pxcap.pxid));
 478     paramOut(cp, csprintf("pxcap.pxcap"), uint16_t(pxcap.pxcap));
 479     paramOut(cp, csprintf("pxcap.pxdcap"), uint32_t(pxcap.pxdcap));
 480     paramOut(cp, csprintf("pxcap.pxdc"), uint16_t(pxcap.pxdc));
 481     paramOut(cp, csprintf("pxcap.pxds"), uint16_t(pxcap.pxds));
 482     paramOut(cp, csprintf("pxcap.pxlcap"), uint32_t(pxcap.pxlcap));
 483     paramOut(cp, csprintf("pxcap.pxlc"), uint16_t(pxcap.pxlc));
 484     paramOut(cp, csprintf("pxcap.pxls"), uint16_t(pxcap.pxls));
 485     paramOut(cp, csprintf("pxcap.pxdcap2"), uint32_t(pxcap.pxdcap2));
 486     paramOut(cp, csprintf("pxcap.pxdc2"), uint32_t(pxcap.pxdc2));
 487 }
 488
 489 void
 490 PciDevice::unserialize(CheckpointIn &cp)
 491 {
 492     UNSERIALIZE_ARRAY(BARSize, sizeof(BARSize) / sizeof(BARSize[0]));
 493     UNSERIALIZE_ARRAY(BARAddrs, sizeof(BARAddrs) / sizeof(BARAddrs[0]));
 494     UNSERIALIZE_ARRAY(config.data,
 495                       sizeof(config.data) / sizeof(config.data[0]));
 496
 497     // unserialize the capability list registers
 498     uint16_t tmp16;
 499     uint32_t tmp32;
 500     paramIn(cp, csprintf("pmcap.pid"), tmp16);
 501     pmcap.pid = tmp16;
 502     paramIn(cp, csprintf("pmcap.pc"), tmp16);
 503     pmcap.pc = tmp16;
 504     paramIn(cp, csprintf("pmcap.pmcs"), tmp16);
 505     pmcap.pmcs = tmp16;
 506
 507     paramIn(cp, csprintf("msicap.mid"), tmp16);
 508     msicap.mid = tmp16;
 509     paramIn(cp, csprintf("msicap.mc"), tmp16);
 510     msicap.mc = tmp16;
 511     paramIn(cp, csprintf("msicap.ma"), tmp32);
 512     msicap.ma = tmp32;
 513     UNSERIALIZE_SCALAR(msicap.mua);
 514     paramIn(cp, csprintf("msicap.md"), tmp16);;
 515     msicap.md = tmp16;
 516     UNSERIALIZE_SCALAR(msicap.mmask);
 517     UNSERIALIZE_SCALAR(msicap.mpend);
 518
 519     paramIn(cp, csprintf("msixcap.mxid"), tmp16);
 520     msixcap.mxid = tmp16;
 521     paramIn(cp, csprintf("msixcap.mxc"), tmp16);
 522     msixcap.mxc = tmp16;
 523     paramIn(cp, csprintf("msixcap.mtab"), tmp32);
 524     msixcap.mtab = tmp32;
 525     paramIn(cp, csprintf("msixcap.mpba"), tmp32);
 526     msixcap.mpba = tmp32;
 527
 528     // Only allocate if MSIXCAP_BASE is not 0x0
 529     if (MSIXCAP_BASE != 0x0) {
 530         int msix_array_size;
 531         int pba_array_size;
 532
 533         UNSERIALIZE_SCALAR(msix_array_size);
 534         UNSERIALIZE_SCALAR(pba_array_size);
 535
 536         MSIXTable tmp1 = {{0UL, 0UL, 0UL, 0UL}};
 537         msix_table.resize(msix_array_size, tmp1);
 538
 539         MSIXPbaEntry tmp2 = {0};
 540         msix_pba.resize(pba_array_size, tmp2);
 541
 542         for (int i = 0; i < msix_array_size; i++) {
 543             paramIn(cp, csprintf("msix_table[%d].addr_lo", i),
 544                     msix_table[i].fields.addr_lo);
 545             paramIn(cp, csprintf("msix_table[%d].addr_hi", i),
 546                     msix_table[i].fields.addr_hi);
 547             paramIn(cp, csprintf("msix_table[%d].msg_data", i),
 548                     msix_table[i].fields.msg_data);
 549             paramIn(cp, csprintf("msix_table[%d].vec_ctrl", i),
 550                     msix_table[i].fields.vec_ctrl);
 551         }
 552         for (int i = 0; i < pba_array_size; i++) {
 553             paramIn(cp, csprintf("msix_pba[%d].bits", i),
 554                     msix_pba[i].bits);
 555         }
 556     }
 557
 558     paramIn(cp, csprintf("pxcap.pxid"), tmp16);
 559     pxcap.pxid = tmp16;
 560     paramIn(cp, csprintf("pxcap.pxcap"), tmp16);
 561     pxcap.pxcap = tmp16;
 562     paramIn(cp, csprintf("pxcap.pxdcap"), tmp32);
 563     pxcap.pxdcap = tmp32;
 564     paramIn(cp, csprintf("pxcap.pxdc"), tmp16);
 565     pxcap.pxdc = tmp16;
 566     paramIn(cp, csprintf("pxcap.pxds"), tmp16);
 567     pxcap.pxds = tmp16;
 568     paramIn(cp, csprintf("pxcap.pxlcap"), tmp32);
 569     pxcap.pxlcap = tmp32;
 570     paramIn(cp, csprintf("pxcap.pxlc"), tmp16);
 571     pxcap.pxlc = tmp16;
 572     paramIn(cp, csprintf("pxcap.pxls"), tmp16);
 573     pxcap.pxls = tmp16;
 574     paramIn(cp, csprintf("pxcap.pxdcap2"), tmp32);
 575     pxcap.pxdcap2 = tmp32;
 576     paramIn(cp, csprintf("pxcap.pxdc2"), tmp32);
 577     pxcap.pxdc2 = tmp32;
 578     pioPort.sendRangeChange();
 579 }
 580