usr.sbin/mptable/mptable.c

   1 /*
   2  * Copyright (c) 1996, by Steve Passe
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. The name of the developer may NOT be used to endorse or promote products
  11  *    derived from this software without specific prior written permission.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23  * SUCH DAMAGE.
  24  *
  25  * $FreeBSD: src/usr.sbin/mptable/mptable.c,v 1.12.2.3 2000/12/11 01:03:34 obrien Exp $
  26  * $DragonFly: src/usr.sbin/mptable/mptable.c,v 1.4 2008/04/20 13:44:26 swildner Exp $
  27  */
  28
  29 /*
  30  * mptable.c
  31  */
  32
  33 #define VMAJOR                  2
  34 #define VMINOR                  0
  35 #define VDELTA                  15
  36
  37 #define MP_SIG                  0x5f504d5f      /* _MP_ */
  38 #define EXTENDED_PROCESSING_READY
  39 #define OEM_PROCESSING_READY_NOT
  40
  41 #include <sys/types.h>
  42 #include <err.h>
  43 #include <fcntl.h>
  44 #include <inttypes.h>
  45 #include <paths.h>
  46 #include <stdio.h>
  47 #include <stdlib.h>
  48 #include <string.h>
  49 #include <unistd.h>
  50
  51 #define SEP_LINE \
  52 "\n-------------------------------------------------------------------------------\n"
  53
  54 #define SEP_LINE2 \
  55 "\n===============================================================================\n"
  56
  57 /* EBDA is @ 40:0e in real-mode terms */
  58 #define EBDA_POINTER            0x040e          /* location of EBDA pointer */
  59
  60 /* CMOS 'top of mem' is @ 40:13 in real-mode terms */
  61 #define TOPOFMEM_POINTER        0x0413          /* BIOS: base memory size */
  62
  63 #define DEFAULT_TOPOFMEM        0xa0000
  64
  65 #define BIOS_BASE               0xf0000
  66 #define BIOS_BASE2              0xe0000
  67 #define BIOS_SIZE               0x10000
  68 #define ONE_KBYTE               1024
  69
  70 #define GROPE_AREA1             0x80000
  71 #define GROPE_AREA2             0x90000
  72 #define GROPE_SIZE              0x10000
  73
  74 #define PROCENTRY_FLAG_EN       0x01
  75 #define PROCENTRY_FLAG_BP       0x02
  76 #define IOAPICENTRY_FLAG_EN     0x01
  77
  78 #define MAXPNSTR                132
  79
  80 enum busTypes {
  81     CBUS = 1,
  82     CBUSII = 2,
  83     EISA = 3,
  84     ISA = 6,
  85     PCI = 13,
  86     XPRESS = 18,
  87     MAX_BUSTYPE = 18,
  88     UNKNOWN_BUSTYPE = 0xff
  89 };
  90
  91 typedef struct BUSTYPENAME {
  92     u_char      type;
  93     char        name[ 7 ];
  94 } busTypeName;
  95
  96 static busTypeName busTypeTable[] =
  97 {
  98     { CBUS,             "CBUS"   },
  99     { CBUSII,           "CBUSII" },
 100     { EISA,             "EISA"   },
 101     { UNKNOWN_BUSTYPE,  "---"    },
 102     { UNKNOWN_BUSTYPE,  "---"    },
 103     { ISA,              "ISA"    },
 104     { UNKNOWN_BUSTYPE,  "---"    },
 105     { UNKNOWN_BUSTYPE,  "---"    },
 106     { UNKNOWN_BUSTYPE,  "---"    },
 107     { UNKNOWN_BUSTYPE,  "---"    },
 108     { UNKNOWN_BUSTYPE,  "---"    },
 109     { UNKNOWN_BUSTYPE,  "---"    },
 110     { PCI,              "PCI"    },
 111     { UNKNOWN_BUSTYPE,  "---"    },
 112     { UNKNOWN_BUSTYPE,  "---"    },
 113     { UNKNOWN_BUSTYPE,  "---"    },
 114     { UNKNOWN_BUSTYPE,  "---"    },
 115     { UNKNOWN_BUSTYPE,  "---"    },
 116     { UNKNOWN_BUSTYPE,  "---"    }
 117 };
 118
 119 const char* whereStrings[] = {
 120     "Extended BIOS Data Area",
 121     "BIOS top of memory",
 122     "Default top of memory",
 123     "BIOS",
 124     "Extended BIOS",
 125     "GROPE AREA #1",
 126     "GROPE AREA #2"
 127 };
 128
 129 typedef struct TABLE_ENTRY {
 130     u_char      type;
 131     u_char      length;
 132     char        name[ 32 ];
 133 } tableEntry;
 134
 135 tableEntry basetableEntryTypes[] =
 136 {
 137     { 0, 20, "Processor" },
 138     { 1,  8, "Bus" },
 139     { 2,  8, "I/O APIC" },
 140     { 3,  8, "I/O INT" },
 141     { 4,  8, "Local INT" }
 142 };
 143
 144 tableEntry extendedtableEntryTypes[] =
 145 {
 146     { 128, 20, "System Address Space" },
 147     { 129,  8, "Bus Hierarchy" },
 148     { 130,  8, "Compatibility Bus Address" }
 149 };
 150
 151 /* MP Floating Pointer Structure */
 152 typedef struct MPFPS {
 153     char        signature[ 4 ];
 154     uint32_t    pap;
 155     u_char      length;
 156     u_char      spec_rev;
 157     u_char      checksum;
 158     u_char      mpfb1;
 159     u_char      mpfb2;
 160     u_char      mpfb3;
 161     u_char      mpfb4;
 162     u_char      mpfb5;
 163 } mpfps_t;
 164
 165 /* MP Configuration Table Header */
 166 typedef struct MPCTH {
 167     char        signature[ 4 ];
 168     uint16_t    base_table_length;
 169     u_char      spec_rev;
 170     u_char      checksum;
 171     u_char      oem_id[ 8 ];
 172     u_char      product_id[ 12 ];
 173     uint32_t    oem_table_pointer;
 174     uint16_t    oem_table_size;
 175     uint16_t    entry_count;
 176     uint32_t    apic_address;
 177     uint16_t    extended_table_length;
 178     u_char      extended_table_checksum;
 179     u_char      reserved;
 180 } mpcth_t;
 181
 182
 183 typedef struct PROCENTRY {
 184     u_char      type;
 185     u_char      apicID;
 186     u_char      apicVersion;
 187     u_char      cpuFlags;
 188     uint32_t    cpuSignature;
 189     uint32_t    featureFlags;
 190     uint32_t    reserved1;
 191     uint32_t    reserved2;
 192 } ProcEntry;
 193
 194 typedef struct BUSENTRY {
 195     u_char      type;
 196     u_char      busID;
 197     char        busType[ 6 ];
 198 } BusEntry;
 199
 200 typedef struct IOAPICENTRY {
 201     u_char      type;
 202     u_char      apicID;
 203     u_char      apicVersion;
 204     u_char      apicFlags;
 205     uint32_t    apicAddress;
 206 } IOApicEntry;
 207
 208 typedef struct INTENTRY {
 209     u_char      type;
 210     u_char      intType;
 211     uint16_t    intFlags;
 212     u_char      srcBusID;
 213     u_char      srcBusIRQ;
 214     u_char      dstApicID;
 215     u_char      dstApicINT;
 216 } IntEntry;
 217
 218
 219 /*
 220  * extended entry type structures
 221  */
 222
 223 typedef struct SASENTRY {
 224     u_char      type;
 225     u_char      length;
 226     u_char      busID;
 227     u_char      addressType;
 228     u_int64_t   addressBase;
 229     u_int64_t   addressLength;
 230 } SasEntry;
 231
 232
 233 typedef struct BHDENTRY {
 234     u_char      type;
 235     u_char      length;
 236     u_char      busID;
 237     u_char      busInfo;
 238     u_char      busParent;
 239     u_char      reserved[ 3 ];
 240 } BhdEntry;
 241
 242
 243 typedef struct CBASMENTRY {
 244     u_char      type;
 245     u_char      length;
 246     u_char      busID;
 247     u_char      addressMod;
 248     uint32_t    predefinedRange;
 249 } CbasmEntry;
 250
 251
 252
 253 static void apic_probe( vm_offset_t* paddr, int* where );
 254
 255 static void MPConfigDefault( int featureByte );
 256
 257 static void MPFloatingPointer( vm_offset_t paddr, int where, mpfps_t* mpfps );
 258 static void MPConfigTableHeader( uint32_t pap );
 259
 260 static int readType( void );
 261 static void seekEntry( vm_offset_t addr );
 262 static void readEntry( void* entry, int size );
 263
 264 static void processorEntry( void );
 265 static void busEntry( void );
 266 static void ioApicEntry( void );
 267 static void intEntry( void );
 268
 269 static void sasEntry( void );
 270 static void bhdEntry( void );
 271 static void cbasmEntry( void );
 272
 273 static void doDmesg( void );
 274 static void pnstr( char* s, int c );
 275
 276 /* global data */
 277 int     pfd;            /* physical /dev/mem fd */
 278
 279 int     busses[ 16 ];
 280 int     apics[ 16 ];
 281
 282 int     ncpu;
 283 int     nbus;
 284 int     napic;
 285 int     nintr;
 286
 287 int     dmesg;
 288 int     grope;
 289 int     raw;
 290 int     verbose;
 291
 292 static void
 293 usage( void )
 294 {
 295     fprintf( stderr, "usage: mptable [-dmesg] [-verbose] [-grope] [-raw] [-help]\n" );
 296     exit( 0 );
 297 }
 298
 299 /*
 300  *
 301  */
 302 int
 303 main( int argc, char *argv[] )
 304 {
 305     vm_offset_t paddr;
 306     int         where;
 307     mpfps_t     mpfps;
 308     int         defaultConfig;
 309
 310     int         ch;
 311
 312     /* announce ourselves */
 313     puts( SEP_LINE2 );
 314
 315     printf( "MPTable, version %d.%d.%d\n", VMAJOR, VMINOR, VDELTA );
 316
 317     while ((ch = getopt(argc, argv, "d:g:h:r:v:")) != -1) {
 318         switch(ch) {
 319         case 'd':
 320             if ( strcmp( optarg, "mesg") == 0 )
 321                 dmesg = 1;
 322             else
 323                 dmesg = 0;
 324             break;
 325         case 'h':
 326             if ( strcmp( optarg, "elp") == 0 )
 327                 usage();
 328             break;
 329         case 'g':
 330             if ( strcmp( optarg, "rope") == 0 )
 331                 grope = 1;
 332             break;
 333         case 'r':
 334             if ( strcmp (optarg, "aw") == 0 )
 335                 raw = 1;
 336             break;
 337         case 'v':
 338             if ( strcmp( optarg, "erbose") == 0 )
 339                 verbose = 1;
 340             break;
 341         default:
 342             usage();
 343         }
 344     }
 345
 346     argc -= optind;
 347     argv += optind;
 348
 349     /* open physical memory for access to MP structures */
 350     if ( (pfd = open( _PATH_MEM, O_RDONLY )) < 0 )
 351         err( 1, "mem open" );
 352
 353     /* probe for MP structures */
 354     apic_probe( &paddr, &where );
 355     if ( where <= 0 ) {
 356         fprintf( stderr, "\n MP FPS NOT found%s\n\n",
 357               grope ? "" : ",\n suggest trying -grope option!!!" );
 358         return 1;
 359     }
 360
 361     if ( verbose )
 362         printf( "\n MP FPS found in %s @ physical addr: 0x%08lx\n",
 363               whereStrings[ where - 1 ], paddr );
 364
 365     puts( SEP_LINE );
 366
 367     /* analyze the MP Floating Pointer Structure */
 368     MPFloatingPointer( paddr, where, &mpfps );
 369
 370     puts( SEP_LINE );
 371
 372     /* check whether an MP config table exists */
 373     if ( (defaultConfig = mpfps.mpfb1) )
 374         MPConfigDefault( defaultConfig );
 375     else
 376         MPConfigTableHeader( mpfps.pap );
 377
 378     /* do a dmesg output */
 379     if ( dmesg )
 380         doDmesg();
 381
 382     puts( SEP_LINE2 );
 383
 384     return 0;
 385 }
 386
 387
 388 static int
 389 findMpSig(uint32_t target, size_t bufsize)
 390 {
 391     uint32_t    buffer[BIOS_SIZE / sizeof(uint32_t)];
 392     uint32_t *x;
 393
 394     seekEntry(target);
 395     readEntry(buffer, (bufsize + sizeof(*x) - 1) & ~sizeof(*x));
 396     for (x = buffer; x < buffer + bufsize / sizeof(*x); ++x) {
 397         if (*x == MP_SIG)
 398             return (x - buffer) * sizeof(*x) + target;
 399     }
 400     return -1;
 401 }
 402
 403 /*
 404  * set PHYSICAL address of MP floating pointer structure
 405  */
 406 static void
 407 apic_probe( vm_offset_t* paddr, int* where )
 408 {
 409     /*
 410      * c rewrite of apic_probe() by Jack F. Vogel
 411      */
 412
 413     int         x;
 414     uint16_t    segment;
 415     vm_offset_t target;
 416
 417     if ( verbose )
 418         printf( "\n" );
 419
 420     /* search Extended Bios Data Area, if present */
 421     if ( verbose )
 422         printf( " looking for EBDA pointer @ 0x%04x, ", EBDA_POINTER );
 423     seekEntry( (vm_offset_t)EBDA_POINTER );
 424     readEntry( &segment, sizeof(segment) );
 425     if ( segment ) {                /* search EBDA */
 426         target = (vm_offset_t)segment << 4;
 427         if ( verbose )
 428             printf( "found, searching EBDA @ 0x%08lx\n", target );
 429
 430         if ((x = findMpSig(target, ONE_KBYTE)) != -1) {
 431             *where = 1;
 432             *paddr = x;
 433             return;
 434         }
 435     }
 436     else {
 437         if ( verbose )
 438             printf( "NOT found\n" );
 439     }
 440
 441     /* read CMOS for real top of mem */
 442     seekEntry( (vm_offset_t)TOPOFMEM_POINTER );
 443     readEntry( &segment, sizeof(segment) );
 444     --segment;                                          /* less ONE_KBYTE */
 445     target = segment * 1024;
 446     if ( verbose )
 447         printf( " searching CMOS 'top of mem' @ 0x%08lx (%dK)\n",
 448                 target, segment );
 449
 450     if ((x = findMpSig(target, ONE_KBYTE)) != -1) {
 451         *where = 2;
 452         *paddr = x;
 453         return;
 454     }
 455
 456     /* we don't necessarily believe CMOS, check base of the last 1K of 640K */
 457     if ( target != (DEFAULT_TOPOFMEM - 1024)) {
 458         target = (DEFAULT_TOPOFMEM - 1024);
 459         if ( verbose )
 460             printf( " searching default 'top of mem' @ 0x%08lx (%ldK)\n",
 461                     target, (target / 1024) );
 462
 463         if ((x = findMpSig(target, ONE_KBYTE)) != -1) {
 464             *where = 3;
 465             *paddr = x;
 466             return;
 467         }
 468     }
 469
 470     /* search the BIOS */
 471     if ( verbose )
 472         printf( " searching BIOS @ 0x%08x\n", BIOS_BASE );
 473
 474     if ((x = findMpSig(BIOS_BASE, BIOS_SIZE)) != -1) {
 475         *where = 4;
 476         *paddr = x;
 477         return;
 478     }
 479
 480     /* search the extended BIOS */
 481     if ( verbose )
 482         printf( " searching extended BIOS @ 0x%08x\n", BIOS_BASE2 );
 483
 484     if ((x = findMpSig(BIOS_BASE2, BIOS_SIZE)) != -1) {
 485         *where = 5;
 486         *paddr = x;
 487         return;
 488     }
 489
 490     if ( grope ) {
 491         /* search additional memory */
 492         target = GROPE_AREA1;
 493         if ( verbose )
 494             printf( " groping memory @ 0x%08lx\n", target );
 495
 496         if ((x = findMpSig(target, GROPE_SIZE)) != -1) {
 497             *where = 6;
 498             *paddr = x;
 499             return;
 500         }
 501
 502         target = GROPE_AREA2;
 503         if ( verbose )
 504             printf( " groping memory @ 0x%08lx\n", target );
 505
 506         if ((x = findMpSig(target, GROPE_SIZE)) != -1) {
 507             *where = 7;
 508             *paddr = x;
 509             return;
 510         }
 511     }
 512
 513     *where = 0;
 514     *paddr = (vm_offset_t)0;
 515 }
 516
 517
 518 /*
 519  *
 520  */
 521 static void
 522 MPFloatingPointer( vm_offset_t paddr, int where, mpfps_t* mpfps )
 523 {
 524
 525     /* read in mpfps structure*/
 526     seekEntry( paddr );
 527     readEntry( mpfps, sizeof( mpfps_t ) );
 528
 529     /* show its contents */
 530     printf( "MP Floating Pointer Structure:\n\n" );
 531
 532     printf( "  location:\t\t\t" );
 533     switch ( where )
 534     {
 535     case 1:
 536         printf( "EBDA\n" );
 537         break;
 538     case 2:
 539         printf( "BIOS base memory\n" );
 540         break;
 541     case 3:
 542         printf( "DEFAULT base memory (639K)\n" );
 543         break;
 544     case 4:
 545         printf( "BIOS\n" );
 546         break;
 547     case 5:
 548         printf( "Extended BIOS\n" );
 549         break;
 550
 551     case 0:
 552         printf( "NOT found!\n" );
 553         exit( 1 );
 554     default:
 555         printf( "BOGUS!\n" );
 556         exit( 1 );
 557     }
 558     printf( "  physical address:\t\t0x%08lx\n", paddr );
 559
 560     printf( "  signature:\t\t\t'" );
 561     pnstr( mpfps->signature, 4 );
 562     printf( "'\n" );
 563
 564     printf( "  length:\t\t\t%d bytes\n", mpfps->length * 16 );
 565     printf( "  version:\t\t\t1.%1d\n", mpfps->spec_rev );
 566     printf( "  checksum:\t\t\t0x%02x\n", mpfps->checksum );
 567
 568     /* bits 0:6 are RESERVED */
 569     if ( mpfps->mpfb2 & 0x7f ) {
 570         printf( " warning, MP feature byte 2: 0x%02x\n", mpfps->mpfb2 );
 571     }
 572
 573     /* bit 7 is IMCRP */
 574     printf( "  mode:\t\t\t\t%s\n", (mpfps->mpfb2 & 0x80) ?
 575             "PIC" : "Virtual Wire" );
 576
 577     /* MP feature bytes 3-5 are expected to be ZERO */
 578     if ( mpfps->mpfb3 )
 579         printf( " warning, MP feature byte 3 NONZERO!\n" );
 580     if ( mpfps->mpfb4 )
 581         printf( " warning, MP feature byte 4 NONZERO!\n" );
 582     if ( mpfps->mpfb5 )
 583         printf( " warning, MP feature byte 5 NONZERO!\n" );
 584 }
 585
 586
 587 /*
 588  *
 589  */
 590 static void
 591 MPConfigDefault( int featureByte )
 592 {
 593     printf( "  MP default config type: %d\n\n", featureByte );
 594     switch ( featureByte ) {
 595     case 1:
 596         printf( "   bus: ISA, APIC: 82489DX\n" );
 597         break;
 598     case 2:
 599         printf( "   bus: EISA, APIC: 82489DX\n" );
 600         break;
 601     case 3:
 602         printf( "   bus: EISA, APIC: 82489DX\n" );
 603         break;
 604     case 4:
 605         printf( "   bus: MCA, APIC: 82489DX\n" );
 606         break;
 607     case 5:
 608         printf( "   bus: ISA+PCI, APIC: Integrated\n" );
 609         break;
 610     case 6:
 611         printf( "   bus: EISA+PCI, APIC: Integrated\n" );
 612         break;
 613     case 7:
 614         printf( "   bus: MCA+PCI, APIC: Integrated\n" );
 615         break;
 616     default:
 617         printf( "   future type\n" );
 618         break;
 619     }
 620
 621     switch ( featureByte ) {
 622     case 1:
 623     case 2:
 624     case 3:
 625     case 4:
 626         nbus = 1;
 627         break;
 628     case 5:
 629     case 6:
 630     case 7:
 631         nbus = 2;
 632         break;
 633     default:
 634         printf( "   future type\n" );
 635         break;
 636     }
 637
 638     ncpu = 2;
 639     napic = 1;
 640     nintr = 16;
 641 }
 642
 643
 644 /*
 645  *
 646  */
 647 static void
 648 MPConfigTableHeader( uint32_t pap )
 649 {
 650     vm_offset_t paddr;
 651     mpcth_t     cth;
 652     int         x;
 653     int         totalSize;
 654     int         count, c;
 655     int         type;
 656
 657     if ( pap == 0 ) {
 658         printf( "MP Configuration Table Header MISSING!\n" );
 659         exit( 1 );
 660     }
 661
 662     /* convert physical address to virtual address */
 663     paddr = (vm_offset_t)pap;
 664
 665     /* read in cth structure */
 666     seekEntry( paddr );
 667     readEntry( &cth, sizeof( cth ) );
 668
 669     printf( "MP Config Table Header:\n\n" );
 670
 671     printf( "  physical address:\t\t0x%08x\n", pap );
 672
 673     printf( "  signature:\t\t\t'" );
 674     pnstr( cth.signature, 4 );
 675     printf( "'\n" );
 676
 677     printf( "  base table length:\t\t%d\n", cth.base_table_length );
 678
 679     printf( "  version:\t\t\t1.%1d\n", cth.spec_rev );
 680     printf( "  checksum:\t\t\t0x%02x\n", cth.checksum );
 681
 682     printf( "  OEM ID:\t\t\t'" );
 683     pnstr( cth.oem_id, 8 );
 684     printf( "'\n" );
 685
 686     printf( "  Product ID:\t\t\t'" );
 687     pnstr( cth.product_id, 12 );
 688     printf( "'\n" );
 689
 690     printf( "  OEM table pointer:\t\t0x%08x\n", cth.oem_table_pointer );
 691     printf( "  OEM table size:\t\t%d\n", cth.oem_table_size );
 692
 693     printf( "  entry count:\t\t\t%d\n", cth.entry_count );
 694
 695     printf( "  local APIC address:\t\t0x%08x\n", cth.apic_address );
 696
 697     printf( "  extended table length:\t%d\n", cth.extended_table_length );
 698     printf( "  extended table checksum:\t%d\n", cth.extended_table_checksum );
 699
 700     totalSize = cth.base_table_length - sizeof( struct MPCTH );
 701     count = cth.entry_count;
 702
 703     puts( SEP_LINE );
 704
 705     printf( "MP Config Base Table Entries:\n\n" );
 706
 707     /* initialze tables */
 708     for ( x = 0; x < 16; ++x ) {
 709         busses[ x ] = apics[ x ] = 0xff;
 710     }
 711
 712     ncpu = 0;
 713     nbus = 0;
 714     napic = 0;
 715     nintr = 0;
 716
 717     /* process all the CPUs */
 718     printf( "--\nProcessors:\tAPIC ID\tVersion\tState"
 719             "\t\tFamily\tModel\tStep\tFlags\n" );
 720     for ( c = count; c; c-- ) {
 721         if ( readType() == 0 )
 722             processorEntry();
 723         totalSize -= basetableEntryTypes[ 0 ].length;
 724     }
 725
 726     /* process all the busses */
 727     printf( "--\nBus:\t\tBus ID\tType\n" );
 728     for ( c = count; c; c-- ) {
 729         if ( readType() == 1 )
 730             busEntry();
 731         totalSize -= basetableEntryTypes[ 1 ].length;
 732     }
 733
 734     /* process all the apics */
 735     printf( "--\nI/O APICs:\tAPIC ID\tVersion\tState\t\tAddress\n" );
 736     for ( c = count; c; c-- ) {
 737         if ( readType() == 2 )
 738             ioApicEntry();
 739         totalSize -= basetableEntryTypes[ 2 ].length;
 740     }
 741
 742     /* process all the I/O Ints */
 743     printf( "--\nI/O Ints:\tType\tPolarity    Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" );
 744     for ( c = count; c; c-- ) {
 745         if ( readType() == 3 )
 746             intEntry();
 747         totalSize -= basetableEntryTypes[ 3 ].length;
 748     }
 749
 750     /* process all the Local Ints */
 751     printf( "--\nLocal Ints:\tType\tPolarity    Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" );
 752     for ( c = count; c; c-- ) {
 753         if ( readType() == 4 )
 754             intEntry();
 755         totalSize -= basetableEntryTypes[ 4 ].length;
 756     }
 757
 758
 759 #if defined( EXTENDED_PROCESSING_READY )
 760     /* process any extended data */
 761     if ( (totalSize = cth.extended_table_length) ) {
 762         puts( SEP_LINE );
 763
 764         printf( "MP Config Extended Table Entries:\n\n" );
 765
 766         while ( totalSize > 0 ) {
 767             switch ( type = readType() ) {
 768             case 128:
 769                 sasEntry();
 770                 break;
 771             case 129:
 772                 bhdEntry();
 773                 break;
 774             case 130:
 775                 cbasmEntry();
 776                 break;
 777             default:
 778                 printf( "Extended Table HOSED!\n" );
 779                 exit( 1 );
 780             }
 781
 782             totalSize -= extendedtableEntryTypes[ type-128 ].length;
 783         }
 784     }
 785 #endif  /* EXTENDED_PROCESSING_READY */
 786
 787     /* process any OEM data */
 788     if ( cth.oem_table_pointer && (cth.oem_table_size > 0) ) {
 789 #if defined( OEM_PROCESSING_READY )
 790 # error your on your own here!
 791         /* convert OEM table pointer to virtual address */
 792         poemtp = (vm_offset_t)cth.oem_table_pointer;
 793
 794         /* read in oem table structure */
 795         if ( (oemdata = (void*)malloc( cth.oem_table_size )) == NULL )
 796             err( 1, "oem malloc" );
 797
 798         seekEntry( poemtp );
 799         readEntry( oemdata, cth.oem_table_size );
 800
 801         /** process it */
 802
 803         free( oemdata );
 804 #else
 805         printf( "\nyou need to modify the source to handle OEM data!\n\n" );
 806 #endif  /* OEM_PROCESSING_READY */
 807     }
 808
 809     fflush( stdout );
 810
 811     if ( raw ) {
 812         int             ofd;
 813         u_char  dumpbuf[ 4096 ];
 814
 815         ofd = open( "/tmp/mpdump", O_CREAT | O_RDWR );
 816         seekEntry( paddr );
 817         readEntry( dumpbuf, 1024 );
 818         write( ofd, dumpbuf, 1024 );
 819         close( ofd );
 820     }
 821 }
 822
 823
 824 /*
 825  *
 826  */
 827 static int
 828 readType( void )
 829 {
 830     u_char      type;
 831
 832     if ( read( pfd, &type, sizeof( u_char ) ) != sizeof( u_char ) )
 833         err( 1, "type read; pfd: %d", pfd );
 834
 835     if ( lseek( pfd, -1, SEEK_CUR ) < 0 )
 836         err( 1, "type seek" );
 837
 838     return (int)type;
 839 }
 840
 841
 842 /*
 843  *
 844  */
 845 static void
 846 seekEntry( vm_offset_t addr )
 847 {
 848     if ( lseek( pfd, (off_t)addr, SEEK_SET ) < 0 )
 849         err( 1, "%s seek", _PATH_MEM );
 850 }
 851
 852
 853 /*
 854  *
 855  */
 856 static void
 857 readEntry( void* entry, int size )
 858 {
 859     if ( read( pfd, entry, size ) != size )
 860         err( 1, "readEntry" );
 861 }
 862
 863
 864 static void
 865 processorEntry( void )
 866 {
 867     ProcEntry   entry;
 868
 869     /* read it into local memory */
 870     readEntry( &entry, sizeof( entry ) );
 871
 872     /* count it */
 873     ++ncpu;
 874
 875     printf( "\t\t%2d", entry.apicID );
 876     printf( "\t 0x%2x", entry.apicVersion );
 877
 878     printf( "\t %s, %s",
 879             (entry.cpuFlags & PROCENTRY_FLAG_BP) ? "BSP" : "AP",
 880             (entry.cpuFlags & PROCENTRY_FLAG_EN) ? "usable" : "unusable" );
 881
 882     printf( "\t %d\t %d\t %d",
 883             (entry.cpuSignature >> 8) & 0x0f,
 884             (entry.cpuSignature >> 4) & 0x0f,
 885             entry.cpuSignature & 0x0f );
 886
 887     printf( "\t 0x%04x\n", entry.featureFlags );
 888 }
 889
 890
 891 /*
 892  *
 893  */
 894 static int
 895 lookupBusType( char* name )
 896 {
 897     int x;
 898
 899     for ( x = 0; x < MAX_BUSTYPE; ++x )
 900         if ( strcmp( busTypeTable[ x ].name, name ) == 0 )
 901             return busTypeTable[ x ].type;
 902
 903     return UNKNOWN_BUSTYPE;
 904 }
 905
 906
 907 static void
 908 busEntry( void )
 909 {
 910     int         x;
 911     char        name[ 8 ];
 912     char        c;
 913     BusEntry    entry;
 914
 915     /* read it into local memory */
 916     readEntry( &entry, sizeof( entry ) );
 917
 918     /* count it */
 919     ++nbus;
 920
 921     printf( "\t\t%2d", entry.busID );
 922     printf( "\t " ); pnstr( entry.busType, 6 ); printf( "\n" );
 923
 924     for ( x = 0; x < 6; ++x ) {
 925         if ( (c = entry.busType[ x ]) == ' ' )
 926             break;
 927         name[ x ] = c;
 928     }
 929     name[ x ] = '\0';
 930     busses[ entry.busID ] = lookupBusType( name );
 931 }
 932
 933
 934 static void
 935 ioApicEntry( void )
 936 {
 937     IOApicEntry entry;
 938
 939     /* read it into local memory */
 940     readEntry( &entry, sizeof( entry ) );
 941
 942     /* count it */
 943     ++napic;
 944
 945     printf( "\t\t%2d", entry.apicID );
 946     printf( "\t 0x%02x", entry.apicVersion );
 947     printf( "\t %s",
 948             (entry.apicFlags & IOAPICENTRY_FLAG_EN) ? "usable" : "unusable" );
 949     printf( "\t\t 0x%x\n", entry.apicAddress );
 950
 951     apics[ entry.apicID ] = entry.apicID;
 952 }
 953
 954
 955 const char* intTypes[] = {
 956     "INT", "NMI", "SMI", "ExtINT"
 957 };
 958
 959 const char* polarityMode[] = {
 960     "conforms", "active-hi", "reserved", "active-lo"
 961 };
 962 const char* triggerMode[] = {
 963     "conforms", "edge", "reserved", "level"
 964 };
 965
 966 static void
 967 intEntry( void )
 968 {
 969     IntEntry    entry;
 970
 971     /* read it into local memory */
 972     readEntry( &entry, sizeof( entry ) );
 973
 974     /* count it */
 975     if ( (int)entry.type == 3 )
 976         ++nintr;
 977
 978     printf( "\t\t%s", intTypes[ (int)entry.intType ] );
 979
 980     printf( "\t%9s", polarityMode[ (int)entry.intFlags & 0x03 ] );
 981     printf( "%12s", triggerMode[ ((int)entry.intFlags >> 2) & 0x03 ] );
 982
 983     printf( "\t %5d", (int)entry.srcBusID );
 984     if ( busses[ (int)entry.srcBusID ] == PCI )
 985         printf( "\t%2d:%c",
 986                 ((int)entry.srcBusIRQ >> 2) & 0x1f,
 987                 ((int)entry.srcBusIRQ & 0x03) + 'A' );
 988     else
 989         printf( "\t %3d", (int)entry.srcBusIRQ );
 990     printf( "\t %6d", (int)entry.dstApicID );
 991     printf( "\t %3d\n", (int)entry.dstApicINT );
 992 }
 993
 994
 995 static void
 996 sasEntry( void )
 997 {
 998     SasEntry    entry;
 999
1000     /* read it into local memory */
1001     readEntry( &entry, sizeof( entry ) );
1002
1003     printf( "--\n%s\n", extendedtableEntryTypes[entry.type - 128].name );
1004     printf( " bus ID: %d", entry.busID );
1005     printf( " address type: " );
1006     switch ( entry.addressType ) {
1007     case 0:
1008         printf( "I/O address\n" );
1009         break;
1010     case 1:
1011         printf( "memory address\n" );
1012         break;
1013     case 2:
1014         printf( "prefetch address\n" );
1015         break;
1016     default:
1017         printf( "UNKNOWN type\n" );
1018         break;
1019     }
1020
1021     printf( " address base: 0x%" PRIx64 "\n", entry.addressBase );
1022     printf( " address range: 0x%" PRIx64 "\n", entry.addressLength );
1023 }
1024
1025
1026 static void
1027 bhdEntry( void )
1028 {
1029     BhdEntry    entry;
1030
1031     /* read it into local memory */
1032     readEntry( &entry, sizeof( entry ) );
1033
1034     printf( "--\n%s\n", extendedtableEntryTypes[entry.type - 128].name );
1035     printf( " bus ID: %d", entry.busID );
1036     printf( " bus info: 0x%02x", entry.busInfo );
1037     printf( " parent bus ID: %d\n", entry.busParent );
1038 }
1039
1040
1041 static void
1042 cbasmEntry( void )
1043 {
1044     CbasmEntry  entry;
1045
1046     /* read it into local memory */
1047     readEntry( &entry, sizeof( entry ) );
1048
1049     printf( "--\n%s\n", extendedtableEntryTypes[entry.type - 128].name );
1050     printf( " bus ID: %d", entry.busID );
1051     printf( " address modifier: %s\n", (entry.addressMod & 0x01) ?
1052                                         "subtract" : "add" );
1053     printf( " predefined range: 0x%08x\n", entry.predefinedRange );
1054 }
1055
1056
1057 /*
1058  * do a dmesg output
1059  */
1060 static void
1061 doDmesg( void )
1062 {
1063     puts( SEP_LINE );
1064
1065     printf( "dmesg output:\n\n" );
1066     fflush( stdout );
1067     system( "dmesg" );
1068 }
1069
1070
1071 /*
1072  *
1073  */
1074 static void
1075 pnstr( char* s, int c )
1076 {
1077     char string[ MAXPNSTR + 1 ];
1078
1079     if ( c > MAXPNSTR )
1080         c = MAXPNSTR;
1081     strncpy( string, s, c );
1082     string[ c ] = '\0';
1083     printf( "%s", string );
1084 }