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 <paths.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <string.h>
  48 #include <unistd.h>
  49
  50 #define SEP_LINE \
  51 "\n-------------------------------------------------------------------------------\n"
  52
  53 #define SEP_LINE2 \
  54 "\n===============================================================================\n"
  55
  56 /* EBDA is @ 40:0e in real-mode terms */
  57 #define EBDA_POINTER            0x040e          /* location of EBDA pointer */
  58
  59 /* CMOS 'top of mem' is @ 40:13 in real-mode terms */
  60 #define TOPOFMEM_POINTER        0x0413          /* BIOS: base memory size */
  61
  62 #define DEFAULT_TOPOFMEM        0xa0000
  63
  64 #define BIOS_BASE               0xf0000
  65 #define BIOS_BASE2              0xe0000
  66 #define BIOS_SIZE               0x10000
  67 #define ONE_KBYTE               1024
  68
  69 #define GROPE_AREA1             0x80000
  70 #define GROPE_AREA2             0x90000
  71 #define GROPE_SIZE              0x10000
  72
  73 #define PROCENTRY_FLAG_EN       0x01
  74 #define PROCENTRY_FLAG_BP       0x02
  75 #define IOAPICENTRY_FLAG_EN     0x01
  76
  77 #define MAXPNSTR                132
  78
  79 enum busTypes {
  80     CBUS = 1,
  81     CBUSII = 2,
  82     EISA = 3,
  83     ISA = 6,
  84     PCI = 13,
  85     XPRESS = 18,
  86     MAX_BUSTYPE = 18,
  87     UNKNOWN_BUSTYPE = 0xff
  88 };
  89
  90 typedef struct BUSTYPENAME {
  91     u_char      type;
  92     char        name[ 7 ];
  93 } busTypeName;
  94
  95 static busTypeName busTypeTable[] =
  96 {
  97     { CBUS,             "CBUS"   },
  98     { CBUSII,           "CBUSII" },
  99     { EISA,             "EISA"   },
 100     { UNKNOWN_BUSTYPE,  "---"    },
 101     { UNKNOWN_BUSTYPE,  "---"    },
 102     { ISA,              "ISA"    },
 103     { UNKNOWN_BUSTYPE,  "---"    },
 104     { UNKNOWN_BUSTYPE,  "---"    },
 105     { UNKNOWN_BUSTYPE,  "---"    },
 106     { UNKNOWN_BUSTYPE,  "---"    },
 107     { UNKNOWN_BUSTYPE,  "---"    },
 108     { UNKNOWN_BUSTYPE,  "---"    },
 109     { PCI,              "PCI"    },
 110     { UNKNOWN_BUSTYPE,  "---"    },
 111     { UNKNOWN_BUSTYPE,  "---"    },
 112     { UNKNOWN_BUSTYPE,  "---"    },
 113     { UNKNOWN_BUSTYPE,  "---"    },
 114     { UNKNOWN_BUSTYPE,  "---"    },
 115     { UNKNOWN_BUSTYPE,  "---"    }
 116 };
 117
 118 char* whereStrings[] = {
 119     "Extended BIOS Data Area",
 120     "BIOS top of memory",
 121     "Default top of memory",
 122     "BIOS",
 123     "Extended BIOS",
 124     "GROPE AREA #1",
 125     "GROPE AREA #2"
 126 };
 127
 128 typedef struct TABLE_ENTRY {
 129     u_char      type;
 130     u_char      length;
 131     char        name[ 32 ];
 132 } tableEntry;
 133
 134 tableEntry basetableEntryTypes[] =
 135 {
 136     { 0, 20, "Processor" },
 137     { 1,  8, "Bus" },
 138     { 2,  8, "I/O APIC" },
 139     { 3,  8, "I/O INT" },
 140     { 4,  8, "Local INT" }
 141 };
 142
 143 tableEntry extendedtableEntryTypes[] =
 144 {
 145     { 128, 20, "System Address Space" },
 146     { 129,  8, "Bus Hierarchy" },
 147     { 130,  8, "Compatibility Bus Address" }
 148 };
 149
 150 /* MP Floating Pointer Structure */
 151 typedef struct MPFPS {
 152     char        signature[ 4 ];
 153     void*       pap;
 154     u_char      length;
 155     u_char      spec_rev;
 156     u_char      checksum;
 157     u_char      mpfb1;
 158     u_char      mpfb2;
 159     u_char      mpfb3;
 160     u_char      mpfb4;
 161     u_char      mpfb5;
 162 } mpfps_t;
 163
 164 /* MP Configuration Table Header */
 165 typedef struct MPCTH {
 166     char        signature[ 4 ];
 167     u_short     base_table_length;
 168     u_char      spec_rev;
 169     u_char      checksum;
 170     u_char      oem_id[ 8 ];
 171     u_char      product_id[ 12 ];
 172     void*       oem_table_pointer;
 173     u_short     oem_table_size;
 174     u_short     entry_count;
 175     void*       apic_address;
 176     u_short     extended_table_length;
 177     u_char      extended_table_checksum;
 178     u_char      reserved;
 179 } mpcth_t;
 180
 181
 182 typedef struct PROCENTRY {
 183     u_char      type;
 184     u_char      apicID;
 185     u_char      apicVersion;
 186     u_char      cpuFlags;
 187     u_long      cpuSignature;
 188     u_long      featureFlags;
 189     u_long      reserved1;
 190     u_long      reserved2;
 191 } ProcEntry;
 192
 193 typedef struct BUSENTRY {
 194     u_char      type;
 195     u_char      busID;
 196     char        busType[ 6 ];
 197 } BusEntry;
 198
 199 typedef struct IOAPICENTRY {
 200     u_char      type;
 201     u_char      apicID;
 202     u_char      apicVersion;
 203     u_char      apicFlags;
 204     void*       apicAddress;
 205 } IOApicEntry;
 206
 207 typedef struct INTENTRY {
 208     u_char      type;
 209     u_char      intType;
 210     u_short     intFlags;
 211     u_char      srcBusID;
 212     u_char      srcBusIRQ;
 213     u_char      dstApicID;
 214     u_char      dstApicINT;
 215 } IntEntry;
 216
 217
 218 /*
 219  * extended entry type structures
 220  */
 221
 222 typedef struct SASENTRY {
 223     u_char      type;
 224     u_char      length;
 225     u_char      busID;
 226     u_char      addressType;
 227     u_int64_t   addressBase;
 228     u_int64_t   addressLength;
 229 } SasEntry;
 230
 231
 232 typedef struct BHDENTRY {
 233     u_char      type;
 234     u_char      length;
 235     u_char      busID;
 236     u_char      busInfo;
 237     u_char      busParent;
 238     u_char      reserved[ 3 ];
 239 } BhdEntry;
 240
 241
 242 typedef struct CBASMENTRY {
 243     u_char      type;
 244     u_char      length;
 245     u_char      busID;
 246     u_char      addressMod;
 247     u_int       predefinedRange;
 248 } CbasmEntry;
 249
 250
 251
 252 static void apic_probe( vm_offset_t* paddr, int* where );
 253
 254 static void MPConfigDefault( int featureByte );
 255
 256 static void MPFloatingPointer( vm_offset_t paddr, int where, mpfps_t* mpfps );
 257 static void MPConfigTableHeader( void* pap );
 258
 259 static int readType( void );
 260 static void seekEntry( vm_offset_t addr );
 261 static void readEntry( void* entry, int size );
 262
 263 static void processorEntry( void );
 264 static void busEntry( void );
 265 static void ioApicEntry( void );
 266 static void intEntry( void );
 267
 268 static void sasEntry( void );
 269 static void bhdEntry( void );
 270 static void cbasmEntry( void );
 271
 272 static void doDmesg( void );
 273 static void pnstr( char* s, int c );
 274
 275 /* global data */
 276 int     pfd;            /* physical /dev/mem fd */
 277
 278 int     busses[ 16 ];
 279 int     apics[ 16 ];
 280
 281 int     ncpu;
 282 int     nbus;
 283 int     napic;
 284 int     nintr;
 285
 286 int     dmesg;
 287 int     grope;
 288 int     raw;
 289 int     verbose;
 290
 291 static void
 292 usage( void )
 293 {
 294     fprintf( stderr, "usage: mptable [-dmesg] [-verbose] [-grope] [-raw] [-help]\n" );
 295     exit( 0 );
 296 }
 297
 298 /*
 299  *
 300  */
 301 int
 302 main( int argc, char *argv[] )
 303 {
 304     vm_offset_t paddr;
 305     int         where;
 306     mpfps_t     mpfps;
 307     int         defaultConfig;
 308
 309     extern int  optreset;
 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,\n" );
 357         fprintf( stderr, " suggest trying -grope option!!!\n\n" );
 358         return 1;
 359     }
 360
 361     if ( verbose )
 362         printf( "\n MP FPS found in %s @ physical addr: 0x%08x\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 /*
 389  * set PHYSICAL address of MP floating pointer structure
 390  */
 391 #define NEXT(X)         ((X) += 4)
 392 static void
 393 apic_probe( vm_offset_t* paddr, int* where )
 394 {
 395     /*
 396      * c rewrite of apic_probe() by Jack F. Vogel
 397      */
 398
 399     int         x;
 400     u_short     segment;
 401     vm_offset_t target;
 402     u_int       buffer[ BIOS_SIZE / sizeof( int ) ];
 403
 404     if ( verbose )
 405         printf( "\n" );
 406
 407     /* search Extended Bios Data Area, if present */
 408     if ( verbose )
 409         printf( " looking for EBDA pointer @ 0x%04x, ", EBDA_POINTER );
 410     seekEntry( (vm_offset_t)EBDA_POINTER );
 411     readEntry( &segment, 2 );
 412     if ( segment ) {                /* search EBDA */
 413         target = (vm_offset_t)segment << 4;
 414         if ( verbose )
 415             printf( "found, searching EBDA @ 0x%08x\n", target );
 416         seekEntry( target );
 417         readEntry( buffer, ONE_KBYTE );
 418
 419         for ( x = 0; x < ONE_KBYTE / sizeof ( unsigned int ); NEXT(x) ) {
 420             if ( buffer[ x ] == MP_SIG ) {
 421                 *where = 1;
 422                 *paddr = (x * sizeof( unsigned int )) + target;
 423                 return;
 424             }
 425         }
 426     }
 427     else {
 428         if ( verbose )
 429             printf( "NOT found\n" );
 430     }
 431
 432     /* read CMOS for real top of mem */
 433     seekEntry( (vm_offset_t)TOPOFMEM_POINTER );
 434     readEntry( &segment, 2 );
 435     --segment;                                          /* less ONE_KBYTE */
 436     target = segment * 1024;
 437     if ( verbose )
 438         printf( " searching CMOS 'top of mem' @ 0x%08x (%dK)\n",
 439                 target, segment );
 440     seekEntry( target );
 441     readEntry( buffer, ONE_KBYTE );
 442
 443     for ( x = 0; x < ONE_KBYTE / sizeof ( unsigned int ); NEXT(x) ) {
 444         if ( buffer[ x ] == MP_SIG ) {
 445             *where = 2;
 446             *paddr = (x * sizeof( unsigned int )) + target;
 447             return;
 448         }
 449     }
 450
 451     /* we don't necessarily believe CMOS, check base of the last 1K of 640K */
 452     if ( target != (DEFAULT_TOPOFMEM - 1024)) {
 453         target = (DEFAULT_TOPOFMEM - 1024);
 454         if ( verbose )
 455             printf( " searching default 'top of mem' @ 0x%08x (%dK)\n",
 456                     target, (target / 1024) );
 457         seekEntry( target );
 458         readEntry( buffer, ONE_KBYTE );
 459
 460         for ( x = 0; x < ONE_KBYTE / sizeof ( unsigned int ); NEXT(x) ) {
 461             if ( buffer[ x ] == MP_SIG ) {
 462                 *where = 3;
 463                 *paddr = (x * sizeof( unsigned int )) + target;
 464                 return;
 465             }
 466         }
 467     }
 468
 469     /* search the BIOS */
 470     if ( verbose )
 471         printf( " searching BIOS @ 0x%08x\n", BIOS_BASE );
 472     seekEntry( BIOS_BASE );
 473     readEntry( buffer, BIOS_SIZE );
 474
 475     for ( x = 0; x < BIOS_SIZE / sizeof( unsigned int ); NEXT(x) ) {
 476         if ( buffer[ x ] == MP_SIG ) {
 477             *where = 4;
 478             *paddr = (x * sizeof( unsigned int )) + BIOS_BASE;
 479             return;
 480         }
 481     }
 482
 483     /* search the extended BIOS */
 484     if ( verbose )
 485         printf( " searching extended BIOS @ 0x%08x\n", BIOS_BASE2 );
 486     seekEntry( BIOS_BASE2 );
 487     readEntry( buffer, BIOS_SIZE );
 488
 489     for ( x = 0; x < BIOS_SIZE / sizeof( unsigned int ); NEXT(x) ) {
 490         if ( buffer[ x ] == MP_SIG ) {
 491             *where = 5;
 492             *paddr = (x * sizeof( unsigned int )) + BIOS_BASE2;
 493             return;
 494         }
 495     }
 496
 497     if ( grope ) {
 498         /* search additional memory */
 499         target = GROPE_AREA1;
 500         if ( verbose )
 501             printf( " groping memory @ 0x%08x\n", target );
 502         seekEntry( target );
 503         readEntry( buffer, GROPE_SIZE );
 504
 505         for ( x = 0; x < GROPE_SIZE / sizeof( unsigned int ); NEXT(x) ) {
 506             if ( buffer[ x ] == MP_SIG ) {
 507                 *where = 6;
 508                 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA1;
 509                 return;
 510             }
 511         }
 512
 513         target = GROPE_AREA2;
 514         if ( verbose )
 515             printf( " groping memory @ 0x%08x\n", target );
 516         seekEntry( target );
 517         readEntry( buffer, GROPE_SIZE );
 518
 519         for ( x = 0; x < GROPE_SIZE / sizeof( unsigned int ); NEXT(x) ) {
 520             if ( buffer[ x ] == MP_SIG ) {
 521                 *where = 7;
 522                 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA2;
 523                 return;
 524             }
 525         }
 526     }
 527
 528     *where = 0;
 529     *paddr = (vm_offset_t)0;
 530 }
 531
 532
 533 /*
 534  *
 535  */
 536 static void
 537 MPFloatingPointer( vm_offset_t paddr, int where, mpfps_t* mpfps )
 538 {
 539
 540     /* read in mpfps structure*/
 541     seekEntry( paddr );
 542     readEntry( mpfps, sizeof( mpfps_t ) );
 543
 544     /* show its contents */
 545     printf( "MP Floating Pointer Structure:\n\n" );
 546
 547     printf( "  location:\t\t\t" );
 548     switch ( where )
 549     {
 550     case 1:
 551         printf( "EBDA\n" );
 552         break;
 553     case 2:
 554         printf( "BIOS base memory\n" );
 555         break;
 556     case 3:
 557         printf( "DEFAULT base memory (639K)\n" );
 558         break;
 559     case 4:
 560         printf( "BIOS\n" );
 561         break;
 562     case 5:
 563         printf( "Extended BIOS\n" );
 564         break;
 565
 566     case 0:
 567         printf( "NOT found!\n" );
 568         exit( 1 );
 569     default:
 570         printf( "BOGUS!\n" );
 571         exit( 1 );
 572     }
 573     printf( "  physical address:\t\t0x%08x\n", paddr );
 574
 575     printf( "  signature:\t\t\t'" );
 576     pnstr( mpfps->signature, 4 );
 577     printf( "'\n" );
 578
 579     printf( "  length:\t\t\t%d bytes\n", mpfps->length * 16 );
 580     printf( "  version:\t\t\t1.%1d\n", mpfps->spec_rev );
 581     printf( "  checksum:\t\t\t0x%02x\n", mpfps->checksum );
 582
 583     /* bits 0:6 are RESERVED */
 584     if ( mpfps->mpfb2 & 0x7f ) {
 585         printf( " warning, MP feature byte 2: 0x%02x\n", mpfps->mpfb2 );
 586     }
 587
 588     /* bit 7 is IMCRP */
 589     printf( "  mode:\t\t\t\t%s\n", (mpfps->mpfb2 & 0x80) ?
 590             "PIC" : "Virtual Wire" );
 591
 592     /* MP feature bytes 3-5 are expected to be ZERO */
 593     if ( mpfps->mpfb3 )
 594         printf( " warning, MP feature byte 3 NONZERO!\n" );
 595     if ( mpfps->mpfb4 )
 596         printf( " warning, MP feature byte 4 NONZERO!\n" );
 597     if ( mpfps->mpfb5 )
 598         printf( " warning, MP feature byte 5 NONZERO!\n" );
 599 }
 600
 601
 602 /*
 603  *
 604  */
 605 static void
 606 MPConfigDefault( int featureByte )
 607 {
 608     printf( "  MP default config type: %d\n\n", featureByte );
 609     switch ( featureByte ) {
 610     case 1:
 611         printf( "   bus: ISA, APIC: 82489DX\n" );
 612         break;
 613     case 2:
 614         printf( "   bus: EISA, APIC: 82489DX\n" );
 615         break;
 616     case 3:
 617         printf( "   bus: EISA, APIC: 82489DX\n" );
 618         break;
 619     case 4:
 620         printf( "   bus: MCA, APIC: 82489DX\n" );
 621         break;
 622     case 5:
 623         printf( "   bus: ISA+PCI, APIC: Integrated\n" );
 624         break;
 625     case 6:
 626         printf( "   bus: EISA+PCI, APIC: Integrated\n" );
 627         break;
 628     case 7:
 629         printf( "   bus: MCA+PCI, APIC: Integrated\n" );
 630         break;
 631     default:
 632         printf( "   future type\n" );
 633         break;
 634     }
 635
 636     switch ( featureByte ) {
 637     case 1:
 638     case 2:
 639     case 3:
 640     case 4:
 641         nbus = 1;
 642         break;
 643     case 5:
 644     case 6:
 645     case 7:
 646         nbus = 2;
 647         break;
 648     default:
 649         printf( "   future type\n" );
 650         break;
 651     }
 652
 653     ncpu = 2;
 654     napic = 1;
 655     nintr = 16;
 656 }
 657
 658
 659 /*
 660  *
 661  */
 662 static void
 663 MPConfigTableHeader( void* pap )
 664 {
 665     vm_offset_t paddr;
 666     mpcth_t     cth;
 667     int         x;
 668     int         totalSize, t;
 669     int         count, c;
 670     int         type;
 671
 672     if ( pap == 0 ) {
 673         printf( "MP Configuration Table Header MISSING!\n" );
 674         exit( 1 );
 675     }
 676
 677     /* convert physical address to virtual address */
 678     paddr = (vm_offset_t)pap;
 679
 680     /* read in cth structure */
 681     seekEntry( paddr );
 682     readEntry( &cth, sizeof( cth ) );
 683
 684     printf( "MP Config Table Header:\n\n" );
 685
 686     printf( "  physical address:\t\t0x%08x\n", pap );
 687
 688     printf( "  signature:\t\t\t'" );
 689     pnstr( cth.signature, 4 );
 690     printf( "'\n" );
 691
 692     printf( "  base table length:\t\t%d\n", cth.base_table_length );
 693
 694     printf( "  version:\t\t\t1.%1d\n", cth.spec_rev );
 695     printf( "  checksum:\t\t\t0x%02x\n", cth.checksum );
 696
 697     printf( "  OEM ID:\t\t\t'" );
 698     pnstr( cth.oem_id, 8 );
 699     printf( "'\n" );
 700
 701     printf( "  Product ID:\t\t\t'" );
 702     pnstr( cth.product_id, 12 );
 703     printf( "'\n" );
 704
 705     printf( "  OEM table pointer:\t\t0x%08x\n", cth.oem_table_pointer );
 706     printf( "  OEM table size:\t\t%d\n", cth.oem_table_size );
 707
 708     printf( "  entry count:\t\t\t%d\n", cth.entry_count );
 709
 710     printf( "  local APIC address:\t\t0x%08x\n", cth.apic_address );
 711
 712     printf( "  extended table length:\t%d\n", cth.extended_table_length );
 713     printf( "  extended table checksum:\t%d\n", cth.extended_table_checksum );
 714
 715     totalSize = cth.base_table_length - sizeof( struct MPCTH );
 716     count = cth.entry_count;
 717
 718     puts( SEP_LINE );
 719
 720     printf( "MP Config Base Table Entries:\n\n" );
 721
 722     /* initialze tables */
 723     for ( x = 0; x < 16; ++x ) {
 724         busses[ x ] = apics[ x ] = 0xff;
 725     }
 726
 727     ncpu = 0;
 728     nbus = 0;
 729     napic = 0;
 730     nintr = 0;
 731
 732     /* process all the CPUs */
 733     printf( "--\nProcessors:\tAPIC ID\tVersion\tState"
 734             "\t\tFamily\tModel\tStep\tFlags\n" );
 735     for ( t = totalSize, c = count; c; c-- ) {
 736         if ( readType() == 0 )
 737             processorEntry();
 738         totalSize -= basetableEntryTypes[ 0 ].length;
 739     }
 740
 741     /* process all the busses */
 742     printf( "--\nBus:\t\tBus ID\tType\n" );
 743     for ( t = totalSize, c = count; c; c-- ) {
 744         if ( readType() == 1 )
 745             busEntry();
 746         totalSize -= basetableEntryTypes[ 1 ].length;
 747     }
 748
 749     /* process all the apics */
 750     printf( "--\nI/O APICs:\tAPIC ID\tVersion\tState\t\tAddress\n" );
 751     for ( t = totalSize, c = count; c; c-- ) {
 752         if ( readType() == 2 )
 753             ioApicEntry();
 754         totalSize -= basetableEntryTypes[ 2 ].length;
 755     }
 756
 757     /* process all the I/O Ints */
 758     printf( "--\nI/O Ints:\tType\tPolarity    Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" );
 759     for ( t = totalSize, c = count; c; c-- ) {
 760         if ( readType() == 3 )
 761             intEntry();
 762         totalSize -= basetableEntryTypes[ 3 ].length;
 763     }
 764
 765     /* process all the Local Ints */
 766     printf( "--\nLocal Ints:\tType\tPolarity    Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" );
 767     for ( t = totalSize, c = count; c; c-- ) {
 768         if ( readType() == 4 )
 769             intEntry();
 770         totalSize -= basetableEntryTypes[ 4 ].length;
 771     }
 772
 773
 774 #if defined( EXTENDED_PROCESSING_READY )
 775     /* process any extended data */
 776     if ( (totalSize = cth.extended_table_length) ) {
 777         puts( SEP_LINE );
 778
 779         printf( "MP Config Extended Table Entries:\n\n" );
 780
 781         while ( totalSize > 0 ) {
 782             switch ( type = readType() ) {
 783             case 128:
 784                 sasEntry();
 785                 break;
 786             case 129:
 787                 bhdEntry();
 788                 break;
 789             case 130:
 790                 cbasmEntry();
 791                 break;
 792             default:
 793                 printf( "Extended Table HOSED!\n" );
 794                 exit( 1 );
 795             }
 796
 797             totalSize -= extendedtableEntryTypes[ type-128 ].length;
 798         }
 799     }
 800 #endif  /* EXTENDED_PROCESSING_READY */
 801
 802     /* process any OEM data */
 803     if ( cth.oem_table_pointer && (cth.oem_table_size > 0) ) {
 804 #if defined( OEM_PROCESSING_READY )
 805 # error your on your own here!
 806         /* convert OEM table pointer to virtual address */
 807         poemtp = (vm_offset_t)cth.oem_table_pointer;
 808
 809         /* read in oem table structure */
 810         if ( (oemdata = (void*)malloc( cth.oem_table_size )) == NULL )
 811             err( 1, "oem malloc" );
 812
 813         seekEntry( poemtp );
 814         readEntry( oemdata, cth.oem_table_size );
 815
 816         /** process it */
 817
 818         free( oemdata );
 819 #else
 820         printf( "\nyou need to modify the source to handle OEM data!\n\n" );
 821 #endif  /* OEM_PROCESSING_READY */
 822     }
 823
 824     fflush( stdout );
 825
 826     if ( raw ) {
 827         int             ofd;
 828         u_char  dumpbuf[ 4096 ];
 829
 830         ofd = open( "/tmp/mpdump", O_CREAT | O_RDWR );
 831         seekEntry( paddr );
 832         readEntry( dumpbuf, 1024 );
 833         write( ofd, dumpbuf, 1024 );
 834         close( ofd );
 835     }
 836 }
 837
 838
 839 /*
 840  *
 841  */
 842 static int
 843 readType( void )
 844 {
 845     u_char      type;
 846
 847     if ( read( pfd, &type, sizeof( u_char ) ) != sizeof( u_char ) )
 848         err( 1, "type read; pfd: %d", pfd );
 849
 850     if ( lseek( pfd, -1, SEEK_CUR ) < 0 )
 851         err( 1, "type seek" );
 852
 853     return (int)type;
 854 }
 855
 856
 857 /*
 858  *
 859  */
 860 static void
 861 seekEntry( vm_offset_t addr )
 862 {
 863     if ( lseek( pfd, (off_t)addr, SEEK_SET ) < 0 )
 864         err( 1, "%s seek", _PATH_MEM );
 865 }
 866
 867
 868 /*
 869  *
 870  */
 871 static void
 872 readEntry( void* entry, int size )
 873 {
 874     if ( read( pfd, entry, size ) != size )
 875         err( 1, "readEntry" );
 876 }
 877
 878
 879 static void
 880 processorEntry( void )
 881 {
 882     ProcEntry   entry;
 883
 884     /* read it into local memory */
 885     readEntry( &entry, sizeof( entry ) );
 886
 887     /* count it */
 888     ++ncpu;
 889
 890     printf( "\t\t%2d", entry.apicID );
 891     printf( "\t 0x%2x", entry.apicVersion );
 892
 893     printf( "\t %s, %s",
 894             (entry.cpuFlags & PROCENTRY_FLAG_BP) ? "BSP" : "AP",
 895             (entry.cpuFlags & PROCENTRY_FLAG_EN) ? "usable" : "unusable" );
 896
 897     printf( "\t %d\t %d\t %d",
 898             (entry.cpuSignature >> 8) & 0x0f,
 899             (entry.cpuSignature >> 4) & 0x0f,
 900             entry.cpuSignature & 0x0f );
 901
 902     printf( "\t 0x%04x\n", entry.featureFlags );
 903 }
 904
 905
 906 /*
 907  *
 908  */
 909 static int
 910 lookupBusType( char* name )
 911 {
 912     int x;
 913
 914     for ( x = 0; x < MAX_BUSTYPE; ++x )
 915         if ( strcmp( busTypeTable[ x ].name, name ) == 0 )
 916             return busTypeTable[ x ].type;
 917
 918     return UNKNOWN_BUSTYPE;
 919 }
 920
 921
 922 static void
 923 busEntry( void )
 924 {
 925     int         x;
 926     char        name[ 8 ];
 927     char        c;
 928     BusEntry    entry;
 929
 930     /* read it into local memory */
 931     readEntry( &entry, sizeof( entry ) );
 932
 933     /* count it */
 934     ++nbus;
 935
 936     printf( "\t\t%2d", entry.busID );
 937     printf( "\t " ); pnstr( entry.busType, 6 ); printf( "\n" );
 938
 939     for ( x = 0; x < 6; ++x ) {
 940         if ( (c = entry.busType[ x ]) == ' ' )
 941             break;
 942         name[ x ] = c;
 943     }
 944     name[ x ] = '\0';
 945     busses[ entry.busID ] = lookupBusType( name );
 946 }
 947
 948
 949 static void
 950 ioApicEntry( void )
 951 {
 952     IOApicEntry entry;
 953
 954     /* read it into local memory */
 955     readEntry( &entry, sizeof( entry ) );
 956
 957     /* count it */
 958     ++napic;
 959
 960     printf( "\t\t%2d", entry.apicID );
 961     printf( "\t 0x%02x", entry.apicVersion );
 962     printf( "\t %s",
 963             (entry.apicFlags & IOAPICENTRY_FLAG_EN) ? "usable" : "unusable" );
 964     printf( "\t\t 0x%x\n", entry.apicAddress );
 965
 966     apics[ entry.apicID ] = entry.apicID;
 967 }
 968
 969
 970 char* intTypes[] = {
 971     "INT", "NMI", "SMI", "ExtINT"
 972 };
 973
 974 char* polarityMode[] = {
 975     "conforms", "active-hi", "reserved", "active-lo"
 976 };
 977 char* triggerMode[] = {
 978     "conforms", "edge", "reserved", "level"
 979 };
 980
 981 static void
 982 intEntry( void )
 983 {
 984     IntEntry    entry;
 985
 986     /* read it into local memory */
 987     readEntry( &entry, sizeof( entry ) );
 988
 989     /* count it */
 990     if ( (int)entry.type == 3 )
 991         ++nintr;
 992
 993     printf( "\t\t%s", intTypes[ (int)entry.intType ] );
 994
 995     printf( "\t%9s", polarityMode[ (int)entry.intFlags & 0x03 ] );
 996     printf( "%12s", triggerMode[ ((int)entry.intFlags >> 2) & 0x03 ] );
 997
 998     printf( "\t %5d", (int)entry.srcBusID );
 999     if ( busses[ (int)entry.srcBusID ] == PCI )
1000         printf( "\t%2d:%c",
1001                 ((int)entry.srcBusIRQ >> 2) & 0x1f,
1002                 ((int)entry.srcBusIRQ & 0x03) + 'A' );
1003     else
1004         printf( "\t %3d", (int)entry.srcBusIRQ );
1005     printf( "\t %6d", (int)entry.dstApicID );
1006     printf( "\t %3d\n", (int)entry.dstApicINT );
1007 }
1008
1009
1010 static void
1011 sasEntry( void )
1012 {
1013     SasEntry    entry;
1014
1015     /* read it into local memory */
1016     readEntry( &entry, sizeof( entry ) );
1017
1018     printf( "--\n%s\n", extendedtableEntryTypes[entry.type - 128].name );
1019     printf( " bus ID: %d", entry.busID );
1020     printf( " address type: " );
1021     switch ( entry.addressType ) {
1022     case 0:
1023         printf( "I/O address\n" );
1024         break;
1025     case 1:
1026         printf( "memory address\n" );
1027         break;
1028     case 2:
1029         printf( "prefetch address\n" );
1030         break;
1031     default:
1032         printf( "UNKNOWN type\n" );
1033         break;
1034     }
1035
1036     printf( " address base: 0x%qx\n", entry.addressBase );
1037     printf( " address range: 0x%qx\n", entry.addressLength );
1038 }
1039
1040
1041 static void
1042 bhdEntry( void )
1043 {
1044     BhdEntry    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( " bus info: 0x%02x", entry.busInfo );
1052     printf( " parent bus ID: %d\n", entry.busParent );
1053 }
1054
1055
1056 static void
1057 cbasmEntry( void )
1058 {
1059     CbasmEntry  entry;
1060
1061     /* read it into local memory */
1062     readEntry( &entry, sizeof( entry ) );
1063
1064     printf( "--\n%s\n", extendedtableEntryTypes[entry.type - 128].name );
1065     printf( " bus ID: %d", entry.busID );
1066     printf( " address modifier: %s\n", (entry.addressMod & 0x01) ?
1067                                         "subtract" : "add" );
1068     printf( " predefined range: 0x%08x\n", entry.predefinedRange );
1069 }
1070
1071
1072 /*
1073  * do a dmesg output
1074  */
1075 static void
1076 doDmesg( void )
1077 {
1078     puts( SEP_LINE );
1079
1080     printf( "dmesg output:\n\n" );
1081     fflush( stdout );
1082     system( "dmesg" );
1083 }
1084
1085
1086 /*
1087  *
1088  */
1089 static void
1090 pnstr( char* s, int c )
1091 {
1092     char string[ MAXPNSTR + 1 ];
1093
1094     if ( c > MAXPNSTR )
1095         c = MAXPNSTR;
1096     strncpy( string, s, c );
1097     string[ c ] = '\0';
1098     printf( "%s", string );
1099 }