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 /*
  38  * this will cause the raw mp table to be dumped to /tmp/mpdump
  39  *
  40 #define RAW_DUMP
  41  */
  42
  43 #define MP_SIG                  0x5f504d5f      /* _MP_ */
  44 #define EXTENDED_PROCESSING_READY
  45 #define OEM_PROCESSING_READY_NOT
  46
  47 #include <sys/types.h>
  48 #include <err.h>
  49 #include <fcntl.h>
  50 #include <paths.h>
  51 #include <stdio.h>
  52 #include <stdlib.h>
  53 #include <string.h>
  54 #include <unistd.h>
  55
  56 #define SEP_LINE \
  57 "\n-------------------------------------------------------------------------------\n"
  58
  59 #define SEP_LINE2 \
  60 "\n===============================================================================\n"
  61
  62 /* EBDA is @ 40:0e in real-mode terms */
  63 #define EBDA_POINTER            0x040e          /* location of EBDA pointer */
  64
  65 /* CMOS 'top of mem' is @ 40:13 in real-mode terms */
  66 #define TOPOFMEM_POINTER        0x0413          /* BIOS: base memory size */
  67
  68 #define DEFAULT_TOPOFMEM        0xa0000
  69
  70 #define BIOS_BASE               0xf0000
  71 #define BIOS_BASE2              0xe0000
  72 #define BIOS_SIZE               0x10000
  73 #define ONE_KBYTE               1024
  74
  75 #define GROPE_AREA1             0x80000
  76 #define GROPE_AREA2             0x90000
  77 #define GROPE_SIZE              0x10000
  78
  79 #define PROCENTRY_FLAG_EN       0x01
  80 #define PROCENTRY_FLAG_BP       0x02
  81 #define IOAPICENTRY_FLAG_EN     0x01
  82
  83 #define MAXPNSTR                132
  84
  85 enum busTypes {
  86     CBUS = 1,
  87     CBUSII = 2,
  88     EISA = 3,
  89     ISA = 6,
  90     PCI = 13,
  91     XPRESS = 18,
  92     MAX_BUSTYPE = 18,
  93     UNKNOWN_BUSTYPE = 0xff
  94 };
  95
  96 typedef struct BUSTYPENAME {
  97     u_char      type;
  98     char        name[ 7 ];
  99 } busTypeName;
 100
 101 static busTypeName busTypeTable[] =
 102 {
 103     { CBUS,             "CBUS"   },
 104     { CBUSII,           "CBUSII" },
 105     { EISA,             "EISA"   },
 106     { UNKNOWN_BUSTYPE,  "---"    },
 107     { UNKNOWN_BUSTYPE,  "---"    },
 108     { ISA,              "ISA"    },
 109     { UNKNOWN_BUSTYPE,  "---"    },
 110     { UNKNOWN_BUSTYPE,  "---"    },
 111     { UNKNOWN_BUSTYPE,  "---"    },
 112     { UNKNOWN_BUSTYPE,  "---"    },
 113     { UNKNOWN_BUSTYPE,  "---"    },
 114     { UNKNOWN_BUSTYPE,  "---"    },
 115     { PCI,              "PCI"    },
 116     { UNKNOWN_BUSTYPE,  "---"    },
 117     { UNKNOWN_BUSTYPE,  "---"    },
 118     { UNKNOWN_BUSTYPE,  "---"    },
 119     { UNKNOWN_BUSTYPE,  "---"    },
 120     { UNKNOWN_BUSTYPE,  "---"    },
 121     { UNKNOWN_BUSTYPE,  "---"    }
 122 };
 123
 124 char* whereStrings[] = {
 125     "Extended BIOS Data Area",
 126     "BIOS top of memory",
 127     "Default top of memory",
 128     "BIOS",
 129     "Extended BIOS",
 130     "GROPE AREA #1",
 131     "GROPE AREA #2"
 132 };
 133
 134 typedef struct TABLE_ENTRY {
 135     u_char      type;
 136     u_char      length;
 137     char        name[ 32 ];
 138 } tableEntry;
 139
 140 tableEntry basetableEntryTypes[] =
 141 {
 142     { 0, 20, "Processor" },
 143     { 1,  8, "Bus" },
 144     { 2,  8, "I/O APIC" },
 145     { 3,  8, "I/O INT" },
 146     { 4,  8, "Local INT" }
 147 };
 148
 149 tableEntry extendedtableEntryTypes[] =
 150 {
 151     { 128, 20, "System Address Space" },
 152     { 129,  8, "Bus Hierarchy" },
 153     { 130,  8, "Compatibility Bus Address" }
 154 };
 155
 156 /* MP Floating Pointer Structure */
 157 typedef struct MPFPS {
 158     char        signature[ 4 ];
 159     void*       pap;
 160     u_char      length;
 161     u_char      spec_rev;
 162     u_char      checksum;
 163     u_char      mpfb1;
 164     u_char      mpfb2;
 165     u_char      mpfb3;
 166     u_char      mpfb4;
 167     u_char      mpfb5;
 168 } mpfps_t;
 169
 170 /* MP Configuration Table Header */
 171 typedef struct MPCTH {
 172     char        signature[ 4 ];
 173     u_short     base_table_length;
 174     u_char      spec_rev;
 175     u_char      checksum;
 176     u_char      oem_id[ 8 ];
 177     u_char      product_id[ 12 ];
 178     void*       oem_table_pointer;
 179     u_short     oem_table_size;
 180     u_short     entry_count;
 181     void*       apic_address;
 182     u_short     extended_table_length;
 183     u_char      extended_table_checksum;
 184     u_char      reserved;
 185 } mpcth_t;
 186
 187
 188 typedef struct PROCENTRY {
 189     u_char      type;
 190     u_char      apicID;
 191     u_char      apicVersion;
 192     u_char      cpuFlags;
 193     u_long      cpuSignature;
 194     u_long      featureFlags;
 195     u_long      reserved1;
 196     u_long      reserved2;
 197 } ProcEntry;
 198
 199 typedef struct BUSENTRY {
 200     u_char      type;
 201     u_char      busID;
 202     char        busType[ 6 ];
 203 } BusEntry;
 204
 205 typedef struct IOAPICENTRY {
 206     u_char      type;
 207     u_char      apicID;
 208     u_char      apicVersion;
 209     u_char      apicFlags;
 210     void*       apicAddress;
 211 } IOApicEntry;
 212
 213 typedef struct INTENTRY {
 214     u_char      type;
 215     u_char      intType;
 216     u_short     intFlags;
 217     u_char      srcBusID;
 218     u_char      srcBusIRQ;
 219     u_char      dstApicID;
 220     u_char      dstApicINT;
 221 } IntEntry;
 222
 223
 224 /*
 225  * extended entry type structures
 226  */
 227
 228 typedef struct SASENTRY {
 229     u_char      type;
 230     u_char      length;
 231     u_char      busID;
 232     u_char      addressType;
 233     u_int64_t   addressBase;
 234     u_int64_t   addressLength;
 235 } SasEntry;
 236
 237
 238 typedef struct BHDENTRY {
 239     u_char      type;
 240     u_char      length;
 241     u_char      busID;
 242     u_char      busInfo;
 243     u_char      busParent;
 244     u_char      reserved[ 3 ];
 245 } BhdEntry;
 246
 247
 248 typedef struct CBASMENTRY {
 249     u_char      type;
 250     u_char      length;
 251     u_char      busID;
 252     u_char      addressMod;
 253     u_int       predefinedRange;
 254 } CbasmEntry;
 255
 256
 257
 258 static void apic_probe( vm_offset_t* paddr, int* where );
 259
 260 static void MPConfigDefault( int featureByte );
 261
 262 static void MPFloatingPointer( vm_offset_t paddr, int where, mpfps_t* mpfps );
 263 static void MPConfigTableHeader( void* pap );
 264
 265 static int readType( void );
 266 static void seekEntry( vm_offset_t addr );
 267 static void readEntry( void* entry, int size );
 268
 269 static void processorEntry( void );
 270 static void busEntry( void );
 271 static void ioApicEntry( void );
 272 static void intEntry( void );
 273
 274 static void sasEntry( void );
 275 static void bhdEntry( void );
 276 static void cbasmEntry( void );
 277
 278 static void doDmesg( void );
 279 static void pnstr( char* s, int c );
 280
 281 /* global data */
 282 int     pfd;            /* physical /dev/mem fd */
 283
 284 int     busses[ 16 ];
 285 int     apics[ 16 ];
 286
 287 int     ncpu;
 288 int     nbus;
 289 int     napic;
 290 int     nintr;
 291
 292 int     dmesg;
 293 int     grope;
 294 int     verbose;
 295
 296 static void
 297 usage( void )
 298 {
 299     fprintf( stderr, "usage: mptable [-dmesg] [-verbose] [-grope] [-help]\n" );
 300     exit( 0 );
 301 }
 302
 303 /*
 304  *
 305  */
 306 int
 307 main( int argc, char *argv[] )
 308 {
 309     vm_offset_t paddr;
 310     int         where;
 311     mpfps_t     mpfps;
 312     int         defaultConfig;
 313
 314     extern int  optreset;
 315     int         ch;
 316
 317     /* announce ourselves */
 318     puts( SEP_LINE2 );
 319
 320     printf( "MPTable, version %d.%d.%d\n", VMAJOR, VMINOR, VDELTA );
 321
 322     while ((ch = getopt(argc, argv, "d:g:h:v:")) != -1) {
 323         switch(ch) {
 324         case 'd':
 325             if ( strcmp( optarg, "mesg") == 0 )
 326                 dmesg = 1;
 327             else
 328                 dmesg = 0;
 329             break;
 330         case 'h':
 331             if ( strcmp( optarg, "elp") == 0 )
 332                 usage();
 333             break;
 334         case 'g':
 335             if ( strcmp( optarg, "rope") == 0 )
 336                 grope = 1;
 337             break;
 338         case 'v':
 339             if ( strcmp( optarg, "erbose") == 0 )
 340                 verbose = 1;
 341             break;
 342         default:
 343             usage();
 344         }
 345     }
 346
 347     argc -= optind;
 348     argv += optind;
 349
 350     /* open physical memory for access to MP structures */
 351     if ( (pfd = open( _PATH_MEM, O_RDONLY )) < 0 )
 352         err( 1, "mem open" );
 353
 354     /* probe for MP structures */
 355     apic_probe( &paddr, &where );
 356     if ( where <= 0 ) {
 357         fprintf( stderr, "\n MP FPS NOT found,\n" );
 358         fprintf( stderr, " suggest trying -grope option!!!\n\n" );
 359         return 1;
 360     }
 361
 362     if ( verbose )
 363         printf( "\n MP FPS found in %s @ physical addr: 0x%08x\n",
 364               whereStrings[ where - 1 ], paddr );
 365
 366     puts( SEP_LINE );
 367
 368     /* analyze the MP Floating Pointer Structure */
 369     MPFloatingPointer( paddr, where, &mpfps );
 370
 371     puts( SEP_LINE );
 372
 373     /* check whether an MP config table exists */
 374     if ( (defaultConfig = mpfps.mpfb1) )
 375         MPConfigDefault( defaultConfig );
 376     else
 377         MPConfigTableHeader( mpfps.pap );
 378
 379     /* do a dmesg output */
 380     if ( dmesg )
 381         doDmesg();
 382
 383     puts( SEP_LINE2 );
 384
 385     return 0;
 386 }
 387
 388
 389 /*
 390  * set PHYSICAL address of MP floating pointer structure
 391  */
 392 #define NEXT(X)         ((X) += 4)
 393 static void
 394 apic_probe( vm_offset_t* paddr, int* where )
 395 {
 396     /*
 397      * c rewrite of apic_probe() by Jack F. Vogel
 398      */
 399
 400     int         x;
 401     u_short     segment;
 402     vm_offset_t target;
 403     u_int       buffer[ BIOS_SIZE / sizeof( int ) ];
 404
 405     if ( verbose )
 406         printf( "\n" );
 407
 408     /* search Extended Bios Data Area, if present */
 409     if ( verbose )
 410         printf( " looking for EBDA pointer @ 0x%04x, ", EBDA_POINTER );
 411     seekEntry( (vm_offset_t)EBDA_POINTER );
 412     readEntry( &segment, 2 );
 413     if ( segment ) {                /* search EBDA */
 414         target = (vm_offset_t)segment << 4;
 415         if ( verbose )
 416             printf( "found, searching EBDA @ 0x%08x\n", target );
 417         seekEntry( target );
 418         readEntry( buffer, ONE_KBYTE );
 419
 420         for ( x = 0; x < ONE_KBYTE / sizeof ( unsigned int ); NEXT(x) ) {
 421             if ( buffer[ x ] == MP_SIG ) {
 422                 *where = 1;
 423                 *paddr = (x * sizeof( unsigned int )) + target;
 424                 return;
 425             }
 426         }
 427     }
 428     else {
 429         if ( verbose )
 430             printf( "NOT found\n" );
 431     }
 432
 433     /* read CMOS for real top of mem */
 434     seekEntry( (vm_offset_t)TOPOFMEM_POINTER );
 435     readEntry( &segment, 2 );
 436     --segment;                                          /* less ONE_KBYTE */
 437     target = segment * 1024;
 438     if ( verbose )
 439         printf( " searching CMOS 'top of mem' @ 0x%08x (%dK)\n",
 440                 target, segment );
 441     seekEntry( target );
 442     readEntry( buffer, ONE_KBYTE );
 443
 444     for ( x = 0; x < ONE_KBYTE / sizeof ( unsigned int ); NEXT(x) ) {
 445         if ( buffer[ x ] == MP_SIG ) {
 446             *where = 2;
 447             *paddr = (x * sizeof( unsigned int )) + target;
 448             return;
 449         }
 450     }
 451
 452     /* we don't necessarily believe CMOS, check base of the last 1K of 640K */
 453     if ( target != (DEFAULT_TOPOFMEM - 1024)) {
 454         target = (DEFAULT_TOPOFMEM - 1024);
 455         if ( verbose )
 456             printf( " searching default 'top of mem' @ 0x%08x (%dK)\n",
 457                     target, (target / 1024) );
 458         seekEntry( target );
 459         readEntry( buffer, ONE_KBYTE );
 460
 461         for ( x = 0; x < ONE_KBYTE / sizeof ( unsigned int ); NEXT(x) ) {
 462             if ( buffer[ x ] == MP_SIG ) {
 463                 *where = 3;
 464                 *paddr = (x * sizeof( unsigned int )) + target;
 465                 return;
 466             }
 467         }
 468     }
 469
 470     /* search the BIOS */
 471     if ( verbose )
 472         printf( " searching BIOS @ 0x%08x\n", BIOS_BASE );
 473     seekEntry( BIOS_BASE );
 474     readEntry( buffer, BIOS_SIZE );
 475
 476     for ( x = 0; x < BIOS_SIZE / sizeof( unsigned int ); NEXT(x) ) {
 477         if ( buffer[ x ] == MP_SIG ) {
 478             *where = 4;
 479             *paddr = (x * sizeof( unsigned int )) + BIOS_BASE;
 480             return;
 481         }
 482     }
 483
 484     /* search the extended BIOS */
 485     if ( verbose )
 486         printf( " searching extended BIOS @ 0x%08x\n", BIOS_BASE2 );
 487     seekEntry( BIOS_BASE2 );
 488     readEntry( buffer, BIOS_SIZE );
 489
 490     for ( x = 0; x < BIOS_SIZE / sizeof( unsigned int ); NEXT(x) ) {
 491         if ( buffer[ x ] == MP_SIG ) {
 492             *where = 5;
 493             *paddr = (x * sizeof( unsigned int )) + BIOS_BASE2;
 494             return;
 495         }
 496     }
 497
 498     if ( grope ) {
 499         /* search additional memory */
 500         target = GROPE_AREA1;
 501         if ( verbose )
 502             printf( " groping memory @ 0x%08x\n", target );
 503         seekEntry( target );
 504         readEntry( buffer, GROPE_SIZE );
 505
 506         for ( x = 0; x < GROPE_SIZE / sizeof( unsigned int ); NEXT(x) ) {
 507             if ( buffer[ x ] == MP_SIG ) {
 508                 *where = 6;
 509                 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA1;
 510                 return;
 511             }
 512         }
 513
 514         target = GROPE_AREA2;
 515         if ( verbose )
 516             printf( " groping memory @ 0x%08x\n", target );
 517         seekEntry( target );
 518         readEntry( buffer, GROPE_SIZE );
 519
 520         for ( x = 0; x < GROPE_SIZE / sizeof( unsigned int ); NEXT(x) ) {
 521             if ( buffer[ x ] == MP_SIG ) {
 522                 *where = 7;
 523                 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA2;
 524                 return;
 525             }
 526         }
 527     }
 528
 529     *where = 0;
 530     *paddr = (vm_offset_t)0;
 531 }
 532
 533
 534 /*
 535  *
 536  */
 537 static void
 538 MPFloatingPointer( vm_offset_t paddr, int where, mpfps_t* mpfps )
 539 {
 540
 541     /* read in mpfps structure*/
 542     seekEntry( paddr );
 543     readEntry( mpfps, sizeof( mpfps_t ) );
 544
 545     /* show its contents */
 546     printf( "MP Floating Pointer Structure:\n\n" );
 547
 548     printf( "  location:\t\t\t" );
 549     switch ( where )
 550     {
 551     case 1:
 552         printf( "EBDA\n" );
 553         break;
 554     case 2:
 555         printf( "BIOS base memory\n" );
 556         break;
 557     case 3:
 558         printf( "DEFAULT base memory (639K)\n" );
 559         break;
 560     case 4:
 561         printf( "BIOS\n" );
 562         break;
 563     case 5:
 564         printf( "Extended BIOS\n" );
 565         break;
 566
 567     case 0:
 568         printf( "NOT found!\n" );
 569         exit( 1 );
 570     default:
 571         printf( "BOGUS!\n" );
 572         exit( 1 );
 573     }
 574     printf( "  physical address:\t\t0x%08x\n", paddr );
 575
 576     printf( "  signature:\t\t\t'" );
 577     pnstr( mpfps->signature, 4 );
 578     printf( "'\n" );
 579
 580     printf( "  length:\t\t\t%d bytes\n", mpfps->length * 16 );
 581     printf( "  version:\t\t\t1.%1d\n", mpfps->spec_rev );
 582     printf( "  checksum:\t\t\t0x%02x\n", mpfps->checksum );
 583
 584     /* bits 0:6 are RESERVED */
 585     if ( mpfps->mpfb2 & 0x7f ) {
 586         printf( " warning, MP feature byte 2: 0x%02x\n", mpfps->mpfb2 );
 587     }
 588
 589     /* bit 7 is IMCRP */
 590     printf( "  mode:\t\t\t\t%s\n", (mpfps->mpfb2 & 0x80) ?
 591             "PIC" : "Virtual Wire" );
 592
 593     /* MP feature bytes 3-5 are expected to be ZERO */
 594     if ( mpfps->mpfb3 )
 595         printf( " warning, MP feature byte 3 NONZERO!\n" );
 596     if ( mpfps->mpfb4 )
 597         printf( " warning, MP feature byte 4 NONZERO!\n" );
 598     if ( mpfps->mpfb5 )
 599         printf( " warning, MP feature byte 5 NONZERO!\n" );
 600 }
 601
 602
 603 /*
 604  *
 605  */
 606 static void
 607 MPConfigDefault( int featureByte )
 608 {
 609     printf( "  MP default config type: %d\n\n", featureByte );
 610     switch ( featureByte ) {
 611     case 1:
 612         printf( "   bus: ISA, APIC: 82489DX\n" );
 613         break;
 614     case 2:
 615         printf( "   bus: EISA, APIC: 82489DX\n" );
 616         break;
 617     case 3:
 618         printf( "   bus: EISA, APIC: 82489DX\n" );
 619         break;
 620     case 4:
 621         printf( "   bus: MCA, APIC: 82489DX\n" );
 622         break;
 623     case 5:
 624         printf( "   bus: ISA+PCI, APIC: Integrated\n" );
 625         break;
 626     case 6:
 627         printf( "   bus: EISA+PCI, APIC: Integrated\n" );
 628         break;
 629     case 7:
 630         printf( "   bus: MCA+PCI, APIC: Integrated\n" );
 631         break;
 632     default:
 633         printf( "   future type\n" );
 634         break;
 635     }
 636
 637     switch ( featureByte ) {
 638     case 1:
 639     case 2:
 640     case 3:
 641     case 4:
 642         nbus = 1;
 643         break;
 644     case 5:
 645     case 6:
 646     case 7:
 647         nbus = 2;
 648         break;
 649     default:
 650         printf( "   future type\n" );
 651         break;
 652     }
 653
 654     ncpu = 2;
 655     napic = 1;
 656     nintr = 16;
 657 }
 658
 659
 660 /*
 661  *
 662  */
 663 static void
 664 MPConfigTableHeader( void* pap )
 665 {
 666     vm_offset_t paddr;
 667     mpcth_t     cth;
 668     int         x;
 669     int         totalSize, t;
 670     int         count, c;
 671     int         type;
 672
 673     if ( pap == 0 ) {
 674         printf( "MP Configuration Table Header MISSING!\n" );
 675         exit( 1 );
 676     }
 677
 678     /* convert physical address to virtual address */
 679     paddr = (vm_offset_t)pap;
 680
 681     /* read in cth structure */
 682     seekEntry( paddr );
 683     readEntry( &cth, sizeof( cth ) );
 684
 685     printf( "MP Config Table Header:\n\n" );
 686
 687     printf( "  physical address:\t\t0x%08x\n", pap );
 688
 689     printf( "  signature:\t\t\t'" );
 690     pnstr( cth.signature, 4 );
 691     printf( "'\n" );
 692
 693     printf( "  base table length:\t\t%d\n", cth.base_table_length );
 694
 695     printf( "  version:\t\t\t1.%1d\n", cth.spec_rev );
 696     printf( "  checksum:\t\t\t0x%02x\n", cth.checksum );
 697
 698     printf( "  OEM ID:\t\t\t'" );
 699     pnstr( cth.oem_id, 8 );
 700     printf( "'\n" );
 701
 702     printf( "  Product ID:\t\t\t'" );
 703     pnstr( cth.product_id, 12 );
 704     printf( "'\n" );
 705
 706     printf( "  OEM table pointer:\t\t0x%08x\n", cth.oem_table_pointer );
 707     printf( "  OEM table size:\t\t%d\n", cth.oem_table_size );
 708
 709     printf( "  entry count:\t\t\t%d\n", cth.entry_count );
 710
 711     printf( "  local APIC address:\t\t0x%08x\n", cth.apic_address );
 712
 713     printf( "  extended table length:\t%d\n", cth.extended_table_length );
 714     printf( "  extended table checksum:\t%d\n", cth.extended_table_checksum );
 715
 716     totalSize = cth.base_table_length - sizeof( struct MPCTH );
 717     count = cth.entry_count;
 718
 719     puts( SEP_LINE );
 720
 721     printf( "MP Config Base Table Entries:\n\n" );
 722
 723     /* initialze tables */
 724     for ( x = 0; x < 16; ++x ) {
 725         busses[ x ] = apics[ x ] = 0xff;
 726     }
 727
 728     ncpu = 0;
 729     nbus = 0;
 730     napic = 0;
 731     nintr = 0;
 732
 733     /* process all the CPUs */
 734     printf( "--\nProcessors:\tAPIC ID\tVersion\tState"
 735             "\t\tFamily\tModel\tStep\tFlags\n" );
 736     for ( t = totalSize, c = count; c; c-- ) {
 737         if ( readType() == 0 )
 738             processorEntry();
 739         totalSize -= basetableEntryTypes[ 0 ].length;
 740     }
 741
 742     /* process all the busses */
 743     printf( "--\nBus:\t\tBus ID\tType\n" );
 744     for ( t = totalSize, c = count; c; c-- ) {
 745         if ( readType() == 1 )
 746             busEntry();
 747         totalSize -= basetableEntryTypes[ 1 ].length;
 748     }
 749
 750     /* process all the apics */
 751     printf( "--\nI/O APICs:\tAPIC ID\tVersion\tState\t\tAddress\n" );
 752     for ( t = totalSize, c = count; c; c-- ) {
 753         if ( readType() == 2 )
 754             ioApicEntry();
 755         totalSize -= basetableEntryTypes[ 2 ].length;
 756     }
 757
 758     /* process all the I/O Ints */
 759     printf( "--\nI/O Ints:\tType\tPolarity    Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" );
 760     for ( t = totalSize, c = count; c; c-- ) {
 761         if ( readType() == 3 )
 762             intEntry();
 763         totalSize -= basetableEntryTypes[ 3 ].length;
 764     }
 765
 766     /* process all the Local Ints */
 767     printf( "--\nLocal Ints:\tType\tPolarity    Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" );
 768     for ( t = totalSize, c = count; c; c-- ) {
 769         if ( readType() == 4 )
 770             intEntry();
 771         totalSize -= basetableEntryTypes[ 4 ].length;
 772     }
 773
 774
 775 #if defined( EXTENDED_PROCESSING_READY )
 776     /* process any extended data */
 777     if ( (totalSize = cth.extended_table_length) ) {
 778         puts( SEP_LINE );
 779
 780         printf( "MP Config Extended Table Entries:\n\n" );
 781
 782         while ( totalSize > 0 ) {
 783             switch ( type = readType() ) {
 784             case 128:
 785                 sasEntry();
 786                 break;
 787             case 129:
 788                 bhdEntry();
 789                 break;
 790             case 130:
 791                 cbasmEntry();
 792                 break;
 793             default:
 794                 printf( "Extended Table HOSED!\n" );
 795                 exit( 1 );
 796             }
 797
 798             totalSize -= extendedtableEntryTypes[ type-128 ].length;
 799         }
 800     }
 801 #endif  /* EXTENDED_PROCESSING_READY */
 802
 803     /* process any OEM data */
 804     if ( cth.oem_table_pointer && (cth.oem_table_size > 0) ) {
 805 #if defined( OEM_PROCESSING_READY )
 806 # error your on your own here!
 807         /* convert OEM table pointer to virtual address */
 808         poemtp = (vm_offset_t)cth.oem_table_pointer;
 809
 810         /* read in oem table structure */
 811         if ( (oemdata = (void*)malloc( cth.oem_table_size )) == NULL )
 812             err( 1, "oem malloc" );
 813
 814         seekEntry( poemtp );
 815         readEntry( oemdata, cth.oem_table_size );
 816
 817         /** process it */
 818
 819         free( oemdata );
 820 #else
 821         printf( "\nyou need to modify the source to handle OEM data!\n\n" );
 822 #endif  /* OEM_PROCESSING_READY */
 823     }
 824
 825     fflush( stdout );
 826
 827 #if defined( RAW_DUMP )
 828 {
 829     int         ofd;
 830     u_char      dumpbuf[ 4096 ];
 831
 832     ofd = open( "/tmp/mpdump", O_CREAT | O_RDWR );
 833     seekEntry( paddr );
 834     readEntry( dumpbuf, 1024 );
 835     write( ofd, dumpbuf, 1024 );
 836     close( ofd );
 837 }
 838 #endif /* RAW_DUMP */
 839 }
 840
 841
 842 /*
 843  *
 844  */
 845 static int
 846 readType( void )
 847 {
 848     u_char      type;
 849
 850     if ( read( pfd, &type, sizeof( u_char ) ) != sizeof( u_char ) )
 851         err( 1, "type read; pfd: %d", pfd );
 852
 853     if ( lseek( pfd, -1, SEEK_CUR ) < 0 )
 854         err( 1, "type seek" );
 855
 856     return (int)type;
 857 }
 858
 859
 860 /*
 861  *
 862  */
 863 static void
 864 seekEntry( vm_offset_t addr )
 865 {
 866     if ( lseek( pfd, (off_t)addr, SEEK_SET ) < 0 )
 867         err( 1, "%s seek", _PATH_MEM );
 868 }
 869
 870
 871 /*
 872  *
 873  */
 874 static void
 875 readEntry( void* entry, int size )
 876 {
 877     if ( read( pfd, entry, size ) != size )
 878         err( 1, "readEntry" );
 879 }
 880
 881
 882 static void
 883 processorEntry( void )
 884 {
 885     ProcEntry   entry;
 886
 887     /* read it into local memory */
 888     readEntry( &entry, sizeof( entry ) );
 889
 890     /* count it */
 891     ++ncpu;
 892
 893     printf( "\t\t%2d", entry.apicID );
 894     printf( "\t 0x%2x", entry.apicVersion );
 895
 896     printf( "\t %s, %s",
 897             (entry.cpuFlags & PROCENTRY_FLAG_BP) ? "BSP" : "AP",
 898             (entry.cpuFlags & PROCENTRY_FLAG_EN) ? "usable" : "unusable" );
 899
 900     printf( "\t %d\t %d\t %d",
 901             (entry.cpuSignature >> 8) & 0x0f,
 902             (entry.cpuSignature >> 4) & 0x0f,
 903             entry.cpuSignature & 0x0f );
 904
 905     printf( "\t 0x%04x\n", entry.featureFlags );
 906 }
 907
 908
 909 /*
 910  *
 911  */
 912 static int
 913 lookupBusType( char* name )
 914 {
 915     int x;
 916
 917     for ( x = 0; x < MAX_BUSTYPE; ++x )
 918         if ( strcmp( busTypeTable[ x ].name, name ) == 0 )
 919             return busTypeTable[ x ].type;
 920
 921     return UNKNOWN_BUSTYPE;
 922 }
 923
 924
 925 static void
 926 busEntry( void )
 927 {
 928     int         x;
 929     char        name[ 8 ];
 930     char        c;
 931     BusEntry    entry;
 932
 933     /* read it into local memory */
 934     readEntry( &entry, sizeof( entry ) );
 935
 936     /* count it */
 937     ++nbus;
 938
 939     printf( "\t\t%2d", entry.busID );
 940     printf( "\t " ); pnstr( entry.busType, 6 ); printf( "\n" );
 941
 942     for ( x = 0; x < 6; ++x ) {
 943         if ( (c = entry.busType[ x ]) == ' ' )
 944             break;
 945         name[ x ] = c;
 946     }
 947     name[ x ] = '\0';
 948     busses[ entry.busID ] = lookupBusType( name );
 949 }
 950
 951
 952 static void
 953 ioApicEntry( void )
 954 {
 955     IOApicEntry entry;
 956
 957     /* read it into local memory */
 958     readEntry( &entry, sizeof( entry ) );
 959
 960     /* count it */
 961     ++napic;
 962
 963     printf( "\t\t%2d", entry.apicID );
 964     printf( "\t 0x%02x", entry.apicVersion );
 965     printf( "\t %s",
 966             (entry.apicFlags & IOAPICENTRY_FLAG_EN) ? "usable" : "unusable" );
 967     printf( "\t\t 0x%x\n", entry.apicAddress );
 968
 969     apics[ entry.apicID ] = entry.apicID;
 970 }
 971
 972
 973 char* intTypes[] = {
 974     "INT", "NMI", "SMI", "ExtINT"
 975 };
 976
 977 char* polarityMode[] = {
 978     "conforms", "active-hi", "reserved", "active-lo"
 979 };
 980 char* triggerMode[] = {
 981     "conforms", "edge", "reserved", "level"
 982 };
 983
 984 static void
 985 intEntry( void )
 986 {
 987     IntEntry    entry;
 988
 989     /* read it into local memory */
 990     readEntry( &entry, sizeof( entry ) );
 991
 992     /* count it */
 993     if ( (int)entry.type == 3 )
 994         ++nintr;
 995
 996     printf( "\t\t%s", intTypes[ (int)entry.intType ] );
 997
 998     printf( "\t%9s", polarityMode[ (int)entry.intFlags & 0x03 ] );
 999     printf( "%12s", triggerMode[ ((int)entry.intFlags >> 2) & 0x03 ] );
1000
1001     printf( "\t %5d", (int)entry.srcBusID );
1002     if ( busses[ (int)entry.srcBusID ] == PCI )
1003         printf( "\t%2d:%c",
1004                 ((int)entry.srcBusIRQ >> 2) & 0x1f,
1005                 ((int)entry.srcBusIRQ & 0x03) + 'A' );
1006     else
1007         printf( "\t %3d", (int)entry.srcBusIRQ );
1008     printf( "\t %6d", (int)entry.dstApicID );
1009     printf( "\t %3d\n", (int)entry.dstApicINT );
1010 }
1011
1012
1013 static void
1014 sasEntry( void )
1015 {
1016     SasEntry    entry;
1017
1018     /* read it into local memory */
1019     readEntry( &entry, sizeof( entry ) );
1020
1021     printf( "--\n%s\n", extendedtableEntryTypes[entry.type - 128].name );
1022     printf( " bus ID: %d", entry.busID );
1023     printf( " address type: " );
1024     switch ( entry.addressType ) {
1025     case 0:
1026         printf( "I/O address\n" );
1027         break;
1028     case 1:
1029         printf( "memory address\n" );
1030         break;
1031     case 2:
1032         printf( "prefetch address\n" );
1033         break;
1034     default:
1035         printf( "UNKNOWN type\n" );
1036         break;
1037     }
1038
1039     printf( " address base: 0x%qx\n", entry.addressBase );
1040     printf( " address range: 0x%qx\n", entry.addressLength );
1041 }
1042
1043
1044 static void
1045 bhdEntry( void )
1046 {
1047     BhdEntry    entry;
1048
1049     /* read it into local memory */
1050     readEntry( &entry, sizeof( entry ) );
1051
1052     printf( "--\n%s\n", extendedtableEntryTypes[entry.type - 128].name );
1053     printf( " bus ID: %d", entry.busID );
1054     printf( " bus info: 0x%02x", entry.busInfo );
1055     printf( " parent bus ID: %d\n", entry.busParent );
1056 }
1057
1058
1059 static void
1060 cbasmEntry( void )
1061 {
1062     CbasmEntry  entry;
1063
1064     /* read it into local memory */
1065     readEntry( &entry, sizeof( entry ) );
1066
1067     printf( "--\n%s\n", extendedtableEntryTypes[entry.type - 128].name );
1068     printf( " bus ID: %d", entry.busID );
1069     printf( " address modifier: %s\n", (entry.addressMod & 0x01) ?
1070                                         "subtract" : "add" );
1071     printf( " predefined range: 0x%08x\n", entry.predefinedRange );
1072 }
1073
1074
1075 /*
1076  * do a dmesg output
1077  */
1078 static void
1079 doDmesg( void )
1080 {
1081     puts( SEP_LINE );
1082
1083     printf( "dmesg output:\n\n" );
1084     fflush( stdout );
1085     system( "dmesg" );
1086 }
1087
1088
1089 /*
1090  *
1091  */
1092 static void
1093 pnstr( char* s, int c )
1094 {
1095     char string[ MAXPNSTR + 1 ];
1096
1097     if ( c > MAXPNSTR )
1098         c = MAXPNSTR;
1099     strncpy( string, s, c );
1100     string[ c ] = '\0';
1101     printf( "%s", string );
1102 }