1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1996, by Steve Passe 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the developer may NOT be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * mptable.c 30 */ 31 32 /* 33 * this will cause the raw mp table to be dumped to /tmp/mpdump 34 * 35 #define RAW_DUMP 36 */ 37 38 #define MP_SIG 0x5f504d5f /* _MP_ */ 39 #define EXTENDED_PROCESSING_READY 40 #define OEM_PROCESSING_READY_NOT 41 42 #include <sys/param.h> 43 #include <sys/mman.h> 44 #include <x86/mptable.h> 45 #include <err.h> 46 #include <fcntl.h> 47 #include <paths.h> 48 #include <stdint.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <unistd.h> 53 54 #define SEP_LINE \ 55 "\n-------------------------------------------------------------------------------\n" 56 57 #define SEP_LINE2 \ 58 "\n===============================================================================\n" 59 60 /* EBDA is @ 40:0e in real-mode terms */ 61 #define EBDA_POINTER 0x040e /* location of EBDA pointer */ 62 63 /* CMOS 'top of mem' is @ 40:13 in real-mode terms */ 64 #define TOPOFMEM_POINTER 0x0413 /* BIOS: base memory size */ 65 66 #define DEFAULT_TOPOFMEM 0xa0000 67 68 #define BIOS_BASE 0xf0000 69 #define BIOS_BASE2 0xe0000 70 #define BIOS_SIZE 0x10000 71 #define ONE_KBYTE 1024 72 73 #define GROPE_AREA1 0x80000 74 #define GROPE_AREA2 0x90000 75 #define GROPE_SIZE 0x10000 76 77 #define MAXPNSTR 132 78 79 typedef struct BUSTYPENAME { 80 u_char type; 81 char name[ 7 ]; 82 } busTypeName; 83 84 static const busTypeName busTypeTable[] = 85 { 86 { CBUS, "CBUS" }, 87 { CBUSII, "CBUSII" }, 88 { EISA, "EISA" }, 89 { UNKNOWN_BUSTYPE, "---" }, 90 { UNKNOWN_BUSTYPE, "---" }, 91 { ISA, "ISA" }, 92 { UNKNOWN_BUSTYPE, "---" }, 93 { UNKNOWN_BUSTYPE, "---" }, 94 { UNKNOWN_BUSTYPE, "---" }, 95 { UNKNOWN_BUSTYPE, "---" }, 96 { UNKNOWN_BUSTYPE, "---" }, 97 { UNKNOWN_BUSTYPE, "---" }, 98 { PCI, "PCI" }, 99 { UNKNOWN_BUSTYPE, "---" }, 100 { UNKNOWN_BUSTYPE, "---" }, 101 { UNKNOWN_BUSTYPE, "---" }, 102 { UNKNOWN_BUSTYPE, "---" }, 103 { UNKNOWN_BUSTYPE, "---" }, 104 { UNKNOWN_BUSTYPE, "---" } 105 }; 106 107 static const char *whereStrings[] = { 108 "Extended BIOS Data Area", 109 "BIOS top of memory", 110 "Default top of memory", 111 "BIOS", 112 "Extended BIOS", 113 "GROPE AREA #1", 114 "GROPE AREA #2" 115 }; 116 117 static void apic_probe( u_int32_t* paddr, int* where ); 118 119 static void MPConfigDefault( int featureByte ); 120 121 static void MPFloatingPointer( u_int32_t paddr, int where, mpfps_t* mpfpsp ); 122 static void MPConfigTableHeader( u_int32_t pap ); 123 124 static void seekEntry( u_int32_t addr ); 125 static void readEntry( void* entry, int size ); 126 static void *mapEntry( u_int32_t addr, int size ); 127 128 static void processorEntry( proc_entry_ptr entry ); 129 static void busEntry( bus_entry_ptr entry ); 130 static void ioApicEntry( io_apic_entry_ptr entry ); 131 static void intEntry( int_entry_ptr entry ); 132 133 static void sasEntry( sas_entry_ptr entry ); 134 static void bhdEntry( bhd_entry_ptr entry ); 135 static void cbasmEntry( cbasm_entry_ptr entry ); 136 137 static void doDmesg( void ); 138 static void pnstr( char* s, int c ); 139 140 /* global data */ 141 static int pfd; /* physical /dev/mem fd */ 142 143 static int busses[256]; 144 static int apics[256]; 145 146 static int ncpu; 147 static int nbus; 148 static int napic; 149 static int nintr; 150 151 static int dmesg; 152 static int grope; 153 static int verbose; 154 155 static void 156 usage( void ) 157 { 158 fprintf( stderr, "usage: mptable [-dmesg] [-verbose] [-grope] [-help]\n" ); 159 exit( 0 ); 160 } 161 162 /* 163 * 164 */ 165 int 166 main( int argc, char *argv[] ) 167 { 168 u_int32_t paddr; 169 int where; 170 mpfps_t mpfps; 171 int defaultConfig; 172 173 int ch; 174 175 /* announce ourselves */ 176 puts( SEP_LINE2 ); 177 178 printf( "MPTable\n" ); 179 180 while ((ch = getopt(argc, argv, "d:g:h:v:")) != -1) { 181 switch(ch) { 182 case 'd': 183 if ( strcmp( optarg, "mesg") == 0 ) 184 dmesg = 1; 185 else 186 usage(); 187 break; 188 case 'h': 189 usage(); 190 case 'g': 191 if ( strcmp( optarg, "rope") == 0 ) 192 grope = 1; 193 else 194 usage(); 195 break; 196 case 'v': 197 if ( strcmp( optarg, "erbose") == 0 ) 198 verbose = 1; 199 else 200 usage(); 201 break; 202 default: 203 usage(); 204 } 205 argc -= optind; 206 argv += optind; 207 optreset = 1; 208 optind = 0; 209 } 210 211 /* open physical memory for access to MP structures */ 212 if ( (pfd = open( _PATH_MEM, O_RDONLY )) < 0 ) 213 err( 1, "mem open" ); 214 215 /* probe for MP structures */ 216 apic_probe( &paddr, &where ); 217 if ( where <= 0 ) { 218 fprintf( stderr, "\n MP FPS NOT found,\n" ); 219 if (!grope) 220 fprintf( stderr, " suggest trying -grope option!!!\n\n" ); 221 return 1; 222 } 223 224 if ( verbose ) 225 printf( "\n MP FPS found in %s @ physical addr: 0x%08x\n", 226 whereStrings[ where - 1 ], paddr ); 227 228 puts( SEP_LINE ); 229 230 /* analyze the MP Floating Pointer Structure */ 231 MPFloatingPointer( paddr, where, &mpfps ); 232 233 puts( SEP_LINE ); 234 235 /* check whether an MP config table exists */ 236 if ( (defaultConfig = mpfps->config_type) ) 237 MPConfigDefault( defaultConfig ); 238 else 239 MPConfigTableHeader( mpfps->pap ); 240 241 /* do a dmesg output */ 242 if ( dmesg ) 243 doDmesg(); 244 245 puts( SEP_LINE2 ); 246 247 return 0; 248 } 249 250 251 /* 252 * set PHYSICAL address of MP floating pointer structure 253 */ 254 #define NEXT(X) ((X) += 4) 255 static void 256 apic_probe( u_int32_t* paddr, int* where ) 257 { 258 /* 259 * c rewrite of apic_probe() by Jack F. Vogel 260 */ 261 262 int x; 263 u_short segment; 264 u_int32_t target; 265 u_int buffer[ BIOS_SIZE / sizeof( int ) ]; 266 267 if ( verbose ) 268 printf( "\n" ); 269 270 /* search Extended Bios Data Area, if present */ 271 if ( verbose ) 272 printf( " looking for EBDA pointer @ 0x%04x, ", EBDA_POINTER ); 273 seekEntry( (u_int32_t)EBDA_POINTER ); 274 readEntry( &segment, 2 ); 275 if ( segment ) { /* search EBDA */ 276 target = (u_int32_t)segment << 4; 277 if ( verbose ) 278 printf( "found, searching EBDA @ 0x%08x\n", target ); 279 seekEntry( target ); 280 readEntry( buffer, ONE_KBYTE ); 281 282 for ( x = 0; x < ONE_KBYTE / (int)sizeof ( unsigned int ); NEXT(x) ) { 283 if ( buffer[ x ] == MP_SIG ) { 284 *where = 1; 285 *paddr = (x * sizeof( unsigned int )) + target; 286 return; 287 } 288 } 289 } 290 else { 291 if ( verbose ) 292 printf( "NOT found\n" ); 293 } 294 295 /* read CMOS for real top of mem */ 296 seekEntry( (u_int32_t)TOPOFMEM_POINTER ); 297 readEntry( &segment, 2 ); 298 --segment; /* less ONE_KBYTE */ 299 target = segment * 1024; 300 if ( verbose ) 301 printf( " searching CMOS 'top of mem' @ 0x%08x (%dK)\n", 302 target, segment ); 303 seekEntry( target ); 304 readEntry( buffer, ONE_KBYTE ); 305 306 for ( x = 0; x < ONE_KBYTE / (int)sizeof ( unsigned int ); NEXT(x) ) { 307 if ( buffer[ x ] == MP_SIG ) { 308 *where = 2; 309 *paddr = (x * sizeof( unsigned int )) + target; 310 return; 311 } 312 } 313 314 /* we don't necessarily believe CMOS, check base of the last 1K of 640K */ 315 if ( target != (DEFAULT_TOPOFMEM - 1024)) { 316 target = (DEFAULT_TOPOFMEM - 1024); 317 if ( verbose ) 318 printf( " searching default 'top of mem' @ 0x%08x (%dK)\n", 319 target, (target / 1024) ); 320 seekEntry( target ); 321 readEntry( buffer, ONE_KBYTE ); 322 323 for ( x = 0; x < ONE_KBYTE / (int)sizeof ( unsigned int ); NEXT(x) ) { 324 if ( buffer[ x ] == MP_SIG ) { 325 *where = 3; 326 *paddr = (x * sizeof( unsigned int )) + target; 327 return; 328 } 329 } 330 } 331 332 /* search the BIOS */ 333 if ( verbose ) 334 printf( " searching BIOS @ 0x%08x\n", BIOS_BASE ); 335 seekEntry( BIOS_BASE ); 336 readEntry( buffer, BIOS_SIZE ); 337 338 for ( x = 0; x < BIOS_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 339 if ( buffer[ x ] == MP_SIG ) { 340 *where = 4; 341 *paddr = (x * sizeof( unsigned int )) + BIOS_BASE; 342 return; 343 } 344 } 345 346 /* search the extended BIOS */ 347 if ( verbose ) 348 printf( " searching extended BIOS @ 0x%08x\n", BIOS_BASE2 ); 349 seekEntry( BIOS_BASE2 ); 350 readEntry( buffer, BIOS_SIZE ); 351 352 for ( x = 0; x < BIOS_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 353 if ( buffer[ x ] == MP_SIG ) { 354 *where = 5; 355 *paddr = (x * sizeof( unsigned int )) + BIOS_BASE2; 356 return; 357 } 358 } 359 360 if ( grope ) { 361 /* search additional memory */ 362 target = GROPE_AREA1; 363 if ( verbose ) 364 printf( " groping memory @ 0x%08x\n", target ); 365 seekEntry( target ); 366 readEntry( buffer, GROPE_SIZE ); 367 368 for ( x = 0; x < GROPE_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 369 if ( buffer[ x ] == MP_SIG ) { 370 *where = 6; 371 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA1; 372 return; 373 } 374 } 375 376 target = GROPE_AREA2; 377 if ( verbose ) 378 printf( " groping memory @ 0x%08x\n", target ); 379 seekEntry( target ); 380 readEntry( buffer, GROPE_SIZE ); 381 382 for ( x = 0; x < GROPE_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 383 if ( buffer[ x ] == MP_SIG ) { 384 *where = 7; 385 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA2; 386 return; 387 } 388 } 389 } 390 391 *where = 0; 392 *paddr = (u_int32_t)0; 393 } 394 395 396 /* 397 * 398 */ 399 static void 400 MPFloatingPointer( u_int32_t paddr, int where, mpfps_t* mpfpsp ) 401 { 402 mpfps_t mpfps; 403 404 /* map in mpfps structure*/ 405 *mpfpsp = mpfps = mapEntry( paddr, sizeof( *mpfps ) ); 406 407 /* show its contents */ 408 printf( "MP Floating Pointer Structure:\n\n" ); 409 410 printf( " location:\t\t\t" ); 411 switch ( where ) 412 { 413 case 1: 414 printf( "EBDA\n" ); 415 break; 416 case 2: 417 printf( "BIOS base memory\n" ); 418 break; 419 case 3: 420 printf( "DEFAULT base memory (639K)\n" ); 421 break; 422 case 4: 423 printf( "BIOS\n" ); 424 break; 425 case 5: 426 printf( "Extended BIOS\n" ); 427 break; 428 429 case 0: 430 printf( "NOT found!\n" ); 431 exit( 1 ); 432 default: 433 printf( "BOGUS!\n" ); 434 exit( 1 ); 435 } 436 printf( " physical address:\t\t0x%08x\n", paddr ); 437 438 printf( " signature:\t\t\t'" ); 439 pnstr( mpfps->signature, 4 ); 440 printf( "'\n" ); 441 442 printf( " length:\t\t\t%d bytes\n", mpfps->length * 16 ); 443 printf( " version:\t\t\t1.%1d\n", mpfps->spec_rev ); 444 printf( " checksum:\t\t\t0x%02x\n", mpfps->checksum ); 445 446 /* bits 0:6 are RESERVED */ 447 if ( mpfps->mpfb2 & 0x7f ) { 448 printf( " warning, MP feature byte 2: 0x%02x\n", mpfps->mpfb2 ); 449 } 450 451 /* bit 7 is IMCRP */ 452 printf( " mode:\t\t\t\t%s\n", (mpfps->mpfb2 & MPFB2_IMCR_PRESENT) ? 453 "PIC" : "Virtual Wire" ); 454 455 /* MP feature bytes 3-5 are expected to be ZERO */ 456 if ( mpfps->mpfb3 ) 457 printf( " warning, MP feature byte 3 NONZERO!\n" ); 458 if ( mpfps->mpfb4 ) 459 printf( " warning, MP feature byte 4 NONZERO!\n" ); 460 if ( mpfps->mpfb5 ) 461 printf( " warning, MP feature byte 5 NONZERO!\n" ); 462 } 463 464 465 /* 466 * 467 */ 468 static void 469 MPConfigDefault( int featureByte ) 470 { 471 printf( " MP default config type: %d\n\n", featureByte ); 472 switch ( featureByte ) { 473 case 1: 474 printf( " bus: ISA, APIC: 82489DX\n" ); 475 break; 476 case 2: 477 printf( " bus: EISA, APIC: 82489DX\n" ); 478 break; 479 case 3: 480 printf( " bus: EISA, APIC: 82489DX\n" ); 481 break; 482 case 4: 483 printf( " bus: MCA, APIC: 82489DX\n" ); 484 break; 485 case 5: 486 printf( " bus: ISA+PCI, APIC: Integrated\n" ); 487 break; 488 case 6: 489 printf( " bus: EISA+PCI, APIC: Integrated\n" ); 490 break; 491 case 7: 492 printf( " bus: MCA+PCI, APIC: Integrated\n" ); 493 break; 494 default: 495 printf( " future type\n" ); 496 break; 497 } 498 499 switch ( featureByte ) { 500 case 1: 501 case 2: 502 case 3: 503 case 4: 504 nbus = 1; 505 break; 506 case 5: 507 case 6: 508 case 7: 509 nbus = 2; 510 break; 511 default: 512 printf( " future type\n" ); 513 break; 514 } 515 516 ncpu = 2; 517 napic = 1; 518 nintr = 16; 519 } 520 521 522 /* 523 * 524 */ 525 static void 526 MPConfigTableHeader( u_int32_t pap ) 527 { 528 mpcth_t cth; 529 int x; 530 int c; 531 int oldtype, entrytype; 532 u_int8_t *entry; 533 534 if ( pap == 0 ) { 535 printf( "MP Configuration Table Header MISSING!\n" ); 536 exit( 1 ); 537 } 538 539 /* map in cth structure */ 540 cth = mapEntry( pap, sizeof( *cth ) ); 541 542 printf( "MP Config Table Header:\n\n" ); 543 544 printf( " physical address:\t\t0x%08x\n", pap ); 545 546 printf( " signature:\t\t\t'" ); 547 pnstr( cth->signature, 4 ); 548 printf( "'\n" ); 549 550 printf( " base table length:\t\t%d\n", cth->base_table_length ); 551 552 printf( " version:\t\t\t1.%1d\n", cth->spec_rev ); 553 printf( " checksum:\t\t\t0x%02x\n", cth->checksum ); 554 555 printf( " OEM ID:\t\t\t'" ); 556 pnstr( cth->oem_id, 8 ); 557 printf( "'\n" ); 558 559 printf( " Product ID:\t\t\t'" ); 560 pnstr( cth->product_id, 12 ); 561 printf( "'\n" ); 562 563 printf( " OEM table pointer:\t\t0x%08x\n", cth->oem_table_pointer ); 564 printf( " OEM table size:\t\t%d\n", cth->oem_table_size ); 565 566 printf( " entry count:\t\t\t%d\n", cth->entry_count ); 567 568 printf( " local APIC address:\t\t0x%08x\n", cth->apic_address ); 569 570 printf( " extended table length:\t%d\n", cth->extended_table_length ); 571 printf( " extended table checksum:\t%d\n", cth->extended_table_checksum ); 572 573 puts( SEP_LINE ); 574 575 printf( "MP Config Base Table Entries:\n\n" ); 576 577 /* initialize tables */ 578 for (x = 0; x < (int)nitems(busses); x++) 579 busses[x] = 0xff; 580 581 for (x = 0; x < (int)nitems(apics); x++) 582 apics[x] = 0xff; 583 584 ncpu = 0; 585 nbus = 0; 586 napic = 0; 587 nintr = 0; 588 589 oldtype = -1; 590 entry = mapEntry(pap + sizeof(*cth), cth->base_table_length); 591 for (c = cth->entry_count; c; c--) { 592 entrytype = *entry; 593 if (entrytype != oldtype) 594 printf("--\n"); 595 if (entrytype < oldtype) 596 printf("MPTABLE OUT OF ORDER!\n"); 597 switch (entrytype) { 598 case MPCT_ENTRY_PROCESSOR: 599 if (oldtype != MPCT_ENTRY_PROCESSOR) 600 printf( "Processors:\tAPIC ID\tVersion\tState" 601 "\t\tFamily\tModel\tStep\tFlags\n" ); 602 processorEntry((proc_entry_ptr)entry); 603 entry += sizeof(struct PROCENTRY); 604 break; 605 606 case MPCT_ENTRY_BUS: 607 if (oldtype != MPCT_ENTRY_BUS) 608 printf( "Bus:\t\tBus ID\tType\n" ); 609 busEntry((bus_entry_ptr)entry); 610 entry += sizeof(struct BUSENTRY); 611 break; 612 613 case MPCT_ENTRY_IOAPIC: 614 if (oldtype != MPCT_ENTRY_IOAPIC) 615 printf( "I/O APICs:\tAPIC ID\tVersion\tState\t\tAddress\n" ); 616 ioApicEntry((io_apic_entry_ptr)entry); 617 entry += sizeof(struct IOAPICENTRY); 618 break; 619 620 case MPCT_ENTRY_INT: 621 if (oldtype != MPCT_ENTRY_INT) 622 printf( "I/O Ints:\tType\tPolarity Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" ); 623 intEntry((int_entry_ptr)entry); 624 entry += sizeof(struct INTENTRY); 625 break; 626 627 case MPCT_ENTRY_LOCAL_INT: 628 if (oldtype != MPCT_ENTRY_LOCAL_INT) 629 printf( "Local Ints:\tType\tPolarity Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" ); 630 intEntry((int_entry_ptr)entry); 631 entry += sizeof(struct INTENTRY); 632 break; 633 634 default: 635 printf("MPTABLE HOSED! record type = %d\n", entrytype); 636 exit(1); 637 } 638 oldtype = entrytype; 639 } 640 641 642 #if defined( EXTENDED_PROCESSING_READY ) 643 /* process any extended data */ 644 if ( cth->extended_table_length ) { 645 ext_entry_ptr ext_entry, end; 646 647 puts( SEP_LINE ); 648 649 printf( "MP Config Extended Table Entries:\n\n" ); 650 651 ext_entry = mapEntry(pap + cth->base_table_length, 652 cth->extended_table_length); 653 end = (ext_entry_ptr)((char *)ext_entry + cth->extended_table_length); 654 while (ext_entry < end) { 655 switch (ext_entry->type) { 656 case MPCT_EXTENTRY_SAS: 657 sasEntry((sas_entry_ptr)ext_entry); 658 break; 659 case MPCT_EXTENTRY_BHD: 660 bhdEntry((bhd_entry_ptr)ext_entry); 661 break; 662 case MPCT_EXTENTRY_CBASM: 663 cbasmEntry((cbasm_entry_ptr)ext_entry); 664 break; 665 default: 666 printf( "Extended Table HOSED!\n" ); 667 exit( 1 ); 668 } 669 670 ext_entry = (ext_entry_ptr)((char *)ext_entry + ext_entry->length); 671 } 672 } 673 #endif /* EXTENDED_PROCESSING_READY */ 674 675 /* process any OEM data */ 676 if ( cth->oem_table_pointer && (cth->oem_table_size > 0) ) { 677 #if defined( OEM_PROCESSING_READY ) 678 # error your on your own here! 679 /* map in oem table structure */ 680 oemdata = mapEntry( cth->oem_table_pointer, cth->oem_table_size); 681 682 /** process it */ 683 #else 684 printf( "\nyou need to modify the source to handle OEM data!\n\n" ); 685 #endif /* OEM_PROCESSING_READY */ 686 } 687 688 fflush( stdout ); 689 690 #if defined( RAW_DUMP ) 691 { 692 int ofd; 693 void *dumpbuf; 694 695 ofd = open( "/tmp/mpdump", O_CREAT | O_RDWR, 0666 ); 696 697 dumpbuf = mapEntry( paddr, 1024 ); 698 write( ofd, dumpbuf, 1024 ); 699 close( ofd ); 700 } 701 #endif /* RAW_DUMP */ 702 } 703 704 705 /* 706 * 707 */ 708 static void 709 seekEntry( u_int32_t addr ) 710 { 711 if ( lseek( pfd, (off_t)addr, SEEK_SET ) < 0 ) 712 err( 1, "%s seek", _PATH_MEM ); 713 } 714 715 716 /* 717 * 718 */ 719 static void 720 readEntry( void* entry, int size ) 721 { 722 if ( read( pfd, entry, size ) != size ) 723 err( 1, "readEntry" ); 724 } 725 726 static void * 727 mapEntry( u_int32_t addr, int size ) 728 { 729 void *p; 730 731 p = mmap( NULL, size, PROT_READ, MAP_SHARED, pfd, addr ); 732 if (p == MAP_FAILED) 733 err( 1, "mapEntry" ); 734 return (p); 735 } 736 737 static void 738 processorEntry( proc_entry_ptr entry ) 739 { 740 741 /* count it */ 742 ++ncpu; 743 744 printf( "\t\t%2d", entry->apic_id ); 745 printf( "\t 0x%2x", entry->apic_version ); 746 747 printf( "\t %s, %s", 748 (entry->cpu_flags & PROCENTRY_FLAG_BP) ? "BSP" : "AP", 749 (entry->cpu_flags & PROCENTRY_FLAG_EN) ? "usable" : "unusable" ); 750 751 printf( "\t %d\t %d\t %d", 752 (entry->cpu_signature >> 8) & 0x0f, 753 (entry->cpu_signature >> 4) & 0x0f, 754 entry->cpu_signature & 0x0f ); 755 756 printf( "\t 0x%04x\n", entry->feature_flags ); 757 } 758 759 760 /* 761 * 762 */ 763 static int 764 lookupBusType( char* name ) 765 { 766 int x; 767 768 for ( x = 0; x < MAX_BUSTYPE; ++x ) 769 if ( strcmp( busTypeTable[ x ].name, name ) == 0 ) 770 return busTypeTable[ x ].type; 771 772 return UNKNOWN_BUSTYPE; 773 } 774 775 776 static void 777 busEntry( bus_entry_ptr entry ) 778 { 779 int x; 780 char name[ 8 ]; 781 char c; 782 783 /* count it */ 784 ++nbus; 785 786 printf( "\t\t%2d", entry->bus_id ); 787 printf( "\t " ); pnstr( entry->bus_type, 6 ); printf( "\n" ); 788 789 for ( x = 0; x < 6; ++x ) { 790 if ( (c = entry->bus_type[ x ]) == ' ' ) 791 break; 792 name[ x ] = c; 793 } 794 name[ x ] = '\0'; 795 busses[ entry->bus_id ] = lookupBusType( name ); 796 } 797 798 799 static void 800 ioApicEntry( io_apic_entry_ptr entry ) 801 { 802 803 /* count it */ 804 ++napic; 805 806 printf( "\t\t%2d", entry->apic_id ); 807 printf( "\t 0x%02x", entry->apic_version ); 808 printf( "\t %s", 809 (entry->apic_flags & IOAPICENTRY_FLAG_EN) ? "usable" : "unusable" ); 810 printf( "\t\t 0x%x\n", entry->apic_address ); 811 812 apics[ entry->apic_id ] = entry->apic_id; 813 } 814 815 816 static const char *intTypes[] = { 817 "INT", "NMI", "SMI", "ExtINT" 818 }; 819 820 static const char *polarityMode[] = { 821 "conforms", "active-hi", "reserved", "active-lo" 822 }; 823 static const char *triggerMode[] = { 824 "conforms", "edge", "reserved", "level" 825 }; 826 827 static void 828 intEntry( int_entry_ptr entry ) 829 { 830 831 /* count it */ 832 if ( entry->type == MPCT_ENTRY_INT ) 833 ++nintr; 834 835 printf( "\t\t%s", intTypes[ entry->int_type ] ); 836 837 printf( "\t%9s", polarityMode[ entry->int_flags & INTENTRY_FLAGS_POLARITY ] ); 838 printf( "%12s", triggerMode[ (entry->int_flags & INTENTRY_FLAGS_TRIGGER) >> 2 ] ); 839 840 printf( "\t %5d", entry->src_bus_id ); 841 if ( busses[ entry->src_bus_id ] == PCI ) 842 printf( "\t%2d:%c", 843 (entry->src_bus_irq >> 2) & 0x1f, 844 (entry->src_bus_irq & 0x03) + 'A' ); 845 else 846 printf( "\t %3d", entry->src_bus_irq ); 847 printf( "\t %6d", entry->dst_apic_id ); 848 printf( "\t %3d\n", entry->dst_apic_int ); 849 } 850 851 852 static void 853 sasEntry( sas_entry_ptr entry ) 854 { 855 856 printf( "--\nSystem Address Space\n"); 857 printf( " bus ID: %d", entry->bus_id ); 858 printf( " address type: " ); 859 switch ( entry->address_type ) { 860 case SASENTRY_TYPE_IO: 861 printf( "I/O address\n" ); 862 break; 863 case SASENTRY_TYPE_MEMORY: 864 printf( "memory address\n" ); 865 break; 866 case SASENTRY_TYPE_PREFETCH: 867 printf( "prefetch address\n" ); 868 break; 869 default: 870 printf( "UNKNOWN type\n" ); 871 break; 872 } 873 874 printf( " address base: 0x%jx\n", (uintmax_t)entry->address_base ); 875 printf( " address range: 0x%jx\n", (uintmax_t)entry->address_length ); 876 } 877 878 879 static void 880 bhdEntry( bhd_entry_ptr entry ) 881 { 882 883 printf( "--\nBus Hierarchy\n" ); 884 printf( " bus ID: %d", entry->bus_id ); 885 printf( " bus info: 0x%02x", entry->bus_info ); 886 printf( " parent bus ID: %d\n", entry->parent_bus ); 887 } 888 889 890 static void 891 cbasmEntry( cbasm_entry_ptr entry ) 892 { 893 894 printf( "--\nCompatibility Bus Address\n" ); 895 printf( " bus ID: %d", entry->bus_id ); 896 printf( " address modifier: %s\n", 897 (entry->address_mod & CBASMENTRY_ADDRESS_MOD_SUBTRACT) ? 898 "subtract" : "add" ); 899 printf( " predefined range: 0x%08x\n", entry->predefined_range ); 900 } 901 902 903 /* 904 * do a dmesg output 905 */ 906 static void 907 doDmesg( void ) 908 { 909 puts( SEP_LINE ); 910 911 printf( "dmesg output:\n\n" ); 912 fflush( stdout ); 913 system( "dmesg" ); 914 } 915 916 917 /* 918 * 919 */ 920 static void 921 pnstr( char* s, int c ) 922 { 923 char string[ MAXPNSTR + 1 ]; 924 925 if ( c > MAXPNSTR ) 926 c = MAXPNSTR; 927 strncpy( string, s, c ); 928 string[ c ] = '\0'; 929 printf( "%s", string ); 930 } 931