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 dmesg = 0; 187 break; 188 case 'h': 189 if ( strcmp( optarg, "elp") == 0 ) 190 usage(); 191 break; 192 case 'g': 193 if ( strcmp( optarg, "rope") == 0 ) 194 grope = 1; 195 break; 196 case 'v': 197 if ( strcmp( optarg, "erbose") == 0 ) 198 verbose = 1; 199 break; 200 default: 201 usage(); 202 } 203 argc -= optind; 204 argv += optind; 205 optreset = 1; 206 optind = 0; 207 } 208 209 /* open physical memory for access to MP structures */ 210 if ( (pfd = open( _PATH_MEM, O_RDONLY )) < 0 ) 211 err( 1, "mem open" ); 212 213 /* probe for MP structures */ 214 apic_probe( &paddr, &where ); 215 if ( where <= 0 ) { 216 fprintf( stderr, "\n MP FPS NOT found,\n" ); 217 if (!grope) 218 fprintf( stderr, " suggest trying -grope option!!!\n\n" ); 219 return 1; 220 } 221 222 if ( verbose ) 223 printf( "\n MP FPS found in %s @ physical addr: 0x%08x\n", 224 whereStrings[ where - 1 ], paddr ); 225 226 puts( SEP_LINE ); 227 228 /* analyze the MP Floating Pointer Structure */ 229 MPFloatingPointer( paddr, where, &mpfps ); 230 231 puts( SEP_LINE ); 232 233 /* check whether an MP config table exists */ 234 if ( (defaultConfig = mpfps->config_type) ) 235 MPConfigDefault( defaultConfig ); 236 else 237 MPConfigTableHeader( mpfps->pap ); 238 239 /* do a dmesg output */ 240 if ( dmesg ) 241 doDmesg(); 242 243 puts( SEP_LINE2 ); 244 245 return 0; 246 } 247 248 249 /* 250 * set PHYSICAL address of MP floating pointer structure 251 */ 252 #define NEXT(X) ((X) += 4) 253 static void 254 apic_probe( u_int32_t* paddr, int* where ) 255 { 256 /* 257 * c rewrite of apic_probe() by Jack F. Vogel 258 */ 259 260 int x; 261 u_short segment; 262 u_int32_t target; 263 u_int buffer[ BIOS_SIZE / sizeof( int ) ]; 264 265 if ( verbose ) 266 printf( "\n" ); 267 268 /* search Extended Bios Data Area, if present */ 269 if ( verbose ) 270 printf( " looking for EBDA pointer @ 0x%04x, ", EBDA_POINTER ); 271 seekEntry( (u_int32_t)EBDA_POINTER ); 272 readEntry( &segment, 2 ); 273 if ( segment ) { /* search EBDA */ 274 target = (u_int32_t)segment << 4; 275 if ( verbose ) 276 printf( "found, searching EBDA @ 0x%08x\n", target ); 277 seekEntry( target ); 278 readEntry( buffer, ONE_KBYTE ); 279 280 for ( x = 0; x < ONE_KBYTE / (int)sizeof ( unsigned int ); NEXT(x) ) { 281 if ( buffer[ x ] == MP_SIG ) { 282 *where = 1; 283 *paddr = (x * sizeof( unsigned int )) + target; 284 return; 285 } 286 } 287 } 288 else { 289 if ( verbose ) 290 printf( "NOT found\n" ); 291 } 292 293 /* read CMOS for real top of mem */ 294 seekEntry( (u_int32_t)TOPOFMEM_POINTER ); 295 readEntry( &segment, 2 ); 296 --segment; /* less ONE_KBYTE */ 297 target = segment * 1024; 298 if ( verbose ) 299 printf( " searching CMOS 'top of mem' @ 0x%08x (%dK)\n", 300 target, segment ); 301 seekEntry( target ); 302 readEntry( buffer, ONE_KBYTE ); 303 304 for ( x = 0; x < ONE_KBYTE / (int)sizeof ( unsigned int ); NEXT(x) ) { 305 if ( buffer[ x ] == MP_SIG ) { 306 *where = 2; 307 *paddr = (x * sizeof( unsigned int )) + target; 308 return; 309 } 310 } 311 312 /* we don't necessarily believe CMOS, check base of the last 1K of 640K */ 313 if ( target != (DEFAULT_TOPOFMEM - 1024)) { 314 target = (DEFAULT_TOPOFMEM - 1024); 315 if ( verbose ) 316 printf( " searching default 'top of mem' @ 0x%08x (%dK)\n", 317 target, (target / 1024) ); 318 seekEntry( target ); 319 readEntry( buffer, ONE_KBYTE ); 320 321 for ( x = 0; x < ONE_KBYTE / (int)sizeof ( unsigned int ); NEXT(x) ) { 322 if ( buffer[ x ] == MP_SIG ) { 323 *where = 3; 324 *paddr = (x * sizeof( unsigned int )) + target; 325 return; 326 } 327 } 328 } 329 330 /* search the BIOS */ 331 if ( verbose ) 332 printf( " searching BIOS @ 0x%08x\n", BIOS_BASE ); 333 seekEntry( BIOS_BASE ); 334 readEntry( buffer, BIOS_SIZE ); 335 336 for ( x = 0; x < BIOS_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 337 if ( buffer[ x ] == MP_SIG ) { 338 *where = 4; 339 *paddr = (x * sizeof( unsigned int )) + BIOS_BASE; 340 return; 341 } 342 } 343 344 /* search the extended BIOS */ 345 if ( verbose ) 346 printf( " searching extended BIOS @ 0x%08x\n", BIOS_BASE2 ); 347 seekEntry( BIOS_BASE2 ); 348 readEntry( buffer, BIOS_SIZE ); 349 350 for ( x = 0; x < BIOS_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 351 if ( buffer[ x ] == MP_SIG ) { 352 *where = 5; 353 *paddr = (x * sizeof( unsigned int )) + BIOS_BASE2; 354 return; 355 } 356 } 357 358 if ( grope ) { 359 /* search additional memory */ 360 target = GROPE_AREA1; 361 if ( verbose ) 362 printf( " groping memory @ 0x%08x\n", target ); 363 seekEntry( target ); 364 readEntry( buffer, GROPE_SIZE ); 365 366 for ( x = 0; x < GROPE_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 367 if ( buffer[ x ] == MP_SIG ) { 368 *where = 6; 369 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA1; 370 return; 371 } 372 } 373 374 target = GROPE_AREA2; 375 if ( verbose ) 376 printf( " groping memory @ 0x%08x\n", target ); 377 seekEntry( target ); 378 readEntry( buffer, GROPE_SIZE ); 379 380 for ( x = 0; x < GROPE_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 381 if ( buffer[ x ] == MP_SIG ) { 382 *where = 7; 383 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA2; 384 return; 385 } 386 } 387 } 388 389 *where = 0; 390 *paddr = (u_int32_t)0; 391 } 392 393 394 /* 395 * 396 */ 397 static void 398 MPFloatingPointer( u_int32_t paddr, int where, mpfps_t* mpfpsp ) 399 { 400 mpfps_t mpfps; 401 402 /* map in mpfps structure*/ 403 *mpfpsp = mpfps = mapEntry( paddr, sizeof( *mpfps ) ); 404 405 /* show its contents */ 406 printf( "MP Floating Pointer Structure:\n\n" ); 407 408 printf( " location:\t\t\t" ); 409 switch ( where ) 410 { 411 case 1: 412 printf( "EBDA\n" ); 413 break; 414 case 2: 415 printf( "BIOS base memory\n" ); 416 break; 417 case 3: 418 printf( "DEFAULT base memory (639K)\n" ); 419 break; 420 case 4: 421 printf( "BIOS\n" ); 422 break; 423 case 5: 424 printf( "Extended BIOS\n" ); 425 break; 426 427 case 0: 428 printf( "NOT found!\n" ); 429 exit( 1 ); 430 default: 431 printf( "BOGUS!\n" ); 432 exit( 1 ); 433 } 434 printf( " physical address:\t\t0x%08x\n", paddr ); 435 436 printf( " signature:\t\t\t'" ); 437 pnstr( mpfps->signature, 4 ); 438 printf( "'\n" ); 439 440 printf( " length:\t\t\t%d bytes\n", mpfps->length * 16 ); 441 printf( " version:\t\t\t1.%1d\n", mpfps->spec_rev ); 442 printf( " checksum:\t\t\t0x%02x\n", mpfps->checksum ); 443 444 /* bits 0:6 are RESERVED */ 445 if ( mpfps->mpfb2 & 0x7f ) { 446 printf( " warning, MP feature byte 2: 0x%02x\n", mpfps->mpfb2 ); 447 } 448 449 /* bit 7 is IMCRP */ 450 printf( " mode:\t\t\t\t%s\n", (mpfps->mpfb2 & MPFB2_IMCR_PRESENT) ? 451 "PIC" : "Virtual Wire" ); 452 453 /* MP feature bytes 3-5 are expected to be ZERO */ 454 if ( mpfps->mpfb3 ) 455 printf( " warning, MP feature byte 3 NONZERO!\n" ); 456 if ( mpfps->mpfb4 ) 457 printf( " warning, MP feature byte 4 NONZERO!\n" ); 458 if ( mpfps->mpfb5 ) 459 printf( " warning, MP feature byte 5 NONZERO!\n" ); 460 } 461 462 463 /* 464 * 465 */ 466 static void 467 MPConfigDefault( int featureByte ) 468 { 469 printf( " MP default config type: %d\n\n", featureByte ); 470 switch ( featureByte ) { 471 case 1: 472 printf( " bus: ISA, APIC: 82489DX\n" ); 473 break; 474 case 2: 475 printf( " bus: EISA, APIC: 82489DX\n" ); 476 break; 477 case 3: 478 printf( " bus: EISA, APIC: 82489DX\n" ); 479 break; 480 case 4: 481 printf( " bus: MCA, APIC: 82489DX\n" ); 482 break; 483 case 5: 484 printf( " bus: ISA+PCI, APIC: Integrated\n" ); 485 break; 486 case 6: 487 printf( " bus: EISA+PCI, APIC: Integrated\n" ); 488 break; 489 case 7: 490 printf( " bus: MCA+PCI, APIC: Integrated\n" ); 491 break; 492 default: 493 printf( " future type\n" ); 494 break; 495 } 496 497 switch ( featureByte ) { 498 case 1: 499 case 2: 500 case 3: 501 case 4: 502 nbus = 1; 503 break; 504 case 5: 505 case 6: 506 case 7: 507 nbus = 2; 508 break; 509 default: 510 printf( " future type\n" ); 511 break; 512 } 513 514 ncpu = 2; 515 napic = 1; 516 nintr = 16; 517 } 518 519 520 /* 521 * 522 */ 523 static void 524 MPConfigTableHeader( u_int32_t pap ) 525 { 526 mpcth_t cth; 527 int x; 528 int c; 529 int oldtype, entrytype; 530 u_int8_t *entry; 531 532 if ( pap == 0 ) { 533 printf( "MP Configuration Table Header MISSING!\n" ); 534 exit( 1 ); 535 } 536 537 /* map in cth structure */ 538 cth = mapEntry( pap, sizeof( *cth ) ); 539 540 printf( "MP Config Table Header:\n\n" ); 541 542 printf( " physical address:\t\t0x%08x\n", pap ); 543 544 printf( " signature:\t\t\t'" ); 545 pnstr( cth->signature, 4 ); 546 printf( "'\n" ); 547 548 printf( " base table length:\t\t%d\n", cth->base_table_length ); 549 550 printf( " version:\t\t\t1.%1d\n", cth->spec_rev ); 551 printf( " checksum:\t\t\t0x%02x\n", cth->checksum ); 552 553 printf( " OEM ID:\t\t\t'" ); 554 pnstr( cth->oem_id, 8 ); 555 printf( "'\n" ); 556 557 printf( " Product ID:\t\t\t'" ); 558 pnstr( cth->product_id, 12 ); 559 printf( "'\n" ); 560 561 printf( " OEM table pointer:\t\t0x%08x\n", cth->oem_table_pointer ); 562 printf( " OEM table size:\t\t%d\n", cth->oem_table_size ); 563 564 printf( " entry count:\t\t\t%d\n", cth->entry_count ); 565 566 printf( " local APIC address:\t\t0x%08x\n", cth->apic_address ); 567 568 printf( " extended table length:\t%d\n", cth->extended_table_length ); 569 printf( " extended table checksum:\t%d\n", cth->extended_table_checksum ); 570 571 puts( SEP_LINE ); 572 573 printf( "MP Config Base Table Entries:\n\n" ); 574 575 /* initialize tables */ 576 for (x = 0; x < (int)nitems(busses); x++) 577 busses[x] = 0xff; 578 579 for (x = 0; x < (int)nitems(apics); x++) 580 apics[x] = 0xff; 581 582 ncpu = 0; 583 nbus = 0; 584 napic = 0; 585 nintr = 0; 586 587 oldtype = -1; 588 entry = mapEntry(pap + sizeof(*cth), cth->base_table_length); 589 for (c = cth->entry_count; c; c--) { 590 entrytype = *entry; 591 if (entrytype != oldtype) 592 printf("--\n"); 593 if (entrytype < oldtype) 594 printf("MPTABLE OUT OF ORDER!\n"); 595 switch (entrytype) { 596 case MPCT_ENTRY_PROCESSOR: 597 if (oldtype != MPCT_ENTRY_PROCESSOR) 598 printf( "Processors:\tAPIC ID\tVersion\tState" 599 "\t\tFamily\tModel\tStep\tFlags\n" ); 600 processorEntry((proc_entry_ptr)entry); 601 entry += sizeof(struct PROCENTRY); 602 break; 603 604 case MPCT_ENTRY_BUS: 605 if (oldtype != MPCT_ENTRY_BUS) 606 printf( "Bus:\t\tBus ID\tType\n" ); 607 busEntry((bus_entry_ptr)entry); 608 entry += sizeof(struct BUSENTRY); 609 break; 610 611 case MPCT_ENTRY_IOAPIC: 612 if (oldtype != MPCT_ENTRY_IOAPIC) 613 printf( "I/O APICs:\tAPIC ID\tVersion\tState\t\tAddress\n" ); 614 ioApicEntry((io_apic_entry_ptr)entry); 615 entry += sizeof(struct IOAPICENTRY); 616 break; 617 618 case MPCT_ENTRY_INT: 619 if (oldtype != MPCT_ENTRY_INT) 620 printf( "I/O Ints:\tType\tPolarity Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" ); 621 intEntry((int_entry_ptr)entry); 622 entry += sizeof(struct INTENTRY); 623 break; 624 625 case MPCT_ENTRY_LOCAL_INT: 626 if (oldtype != MPCT_ENTRY_LOCAL_INT) 627 printf( "Local Ints:\tType\tPolarity Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" ); 628 intEntry((int_entry_ptr)entry); 629 entry += sizeof(struct INTENTRY); 630 break; 631 632 default: 633 printf("MPTABLE HOSED! record type = %d\n", entrytype); 634 exit(1); 635 } 636 oldtype = entrytype; 637 } 638 639 640 #if defined( EXTENDED_PROCESSING_READY ) 641 /* process any extended data */ 642 if ( cth->extended_table_length ) { 643 ext_entry_ptr ext_entry, end; 644 645 puts( SEP_LINE ); 646 647 printf( "MP Config Extended Table Entries:\n\n" ); 648 649 ext_entry = mapEntry(pap + cth->base_table_length, 650 cth->extended_table_length); 651 end = (ext_entry_ptr)((char *)ext_entry + cth->extended_table_length); 652 while (ext_entry < end) { 653 switch (ext_entry->type) { 654 case MPCT_EXTENTRY_SAS: 655 sasEntry((sas_entry_ptr)ext_entry); 656 break; 657 case MPCT_EXTENTRY_BHD: 658 bhdEntry((bhd_entry_ptr)ext_entry); 659 break; 660 case MPCT_EXTENTRY_CBASM: 661 cbasmEntry((cbasm_entry_ptr)ext_entry); 662 break; 663 default: 664 printf( "Extended Table HOSED!\n" ); 665 exit( 1 ); 666 } 667 668 ext_entry = (ext_entry_ptr)((char *)ext_entry + ext_entry->length); 669 } 670 } 671 #endif /* EXTENDED_PROCESSING_READY */ 672 673 /* process any OEM data */ 674 if ( cth->oem_table_pointer && (cth->oem_table_size > 0) ) { 675 #if defined( OEM_PROCESSING_READY ) 676 # error your on your own here! 677 /* map in oem table structure */ 678 oemdata = mapEntry( cth->oem_table_pointer, cth->oem_table_size); 679 680 /** process it */ 681 #else 682 printf( "\nyou need to modify the source to handle OEM data!\n\n" ); 683 #endif /* OEM_PROCESSING_READY */ 684 } 685 686 fflush( stdout ); 687 688 #if defined( RAW_DUMP ) 689 { 690 int ofd; 691 void *dumpbuf; 692 693 ofd = open( "/tmp/mpdump", O_CREAT | O_RDWR, 0666 ); 694 695 dumpbuf = mapEntry( paddr, 1024 ); 696 write( ofd, dumpbuf, 1024 ); 697 close( ofd ); 698 } 699 #endif /* RAW_DUMP */ 700 } 701 702 703 /* 704 * 705 */ 706 static void 707 seekEntry( u_int32_t addr ) 708 { 709 if ( lseek( pfd, (off_t)addr, SEEK_SET ) < 0 ) 710 err( 1, "%s seek", _PATH_MEM ); 711 } 712 713 714 /* 715 * 716 */ 717 static void 718 readEntry( void* entry, int size ) 719 { 720 if ( read( pfd, entry, size ) != size ) 721 err( 1, "readEntry" ); 722 } 723 724 static void * 725 mapEntry( u_int32_t addr, int size ) 726 { 727 void *p; 728 729 p = mmap( NULL, size, PROT_READ, MAP_SHARED, pfd, addr ); 730 if (p == MAP_FAILED) 731 err( 1, "mapEntry" ); 732 return (p); 733 } 734 735 static void 736 processorEntry( proc_entry_ptr entry ) 737 { 738 739 /* count it */ 740 ++ncpu; 741 742 printf( "\t\t%2d", entry->apic_id ); 743 printf( "\t 0x%2x", entry->apic_version ); 744 745 printf( "\t %s, %s", 746 (entry->cpu_flags & PROCENTRY_FLAG_BP) ? "BSP" : "AP", 747 (entry->cpu_flags & PROCENTRY_FLAG_EN) ? "usable" : "unusable" ); 748 749 printf( "\t %d\t %d\t %d", 750 (entry->cpu_signature >> 8) & 0x0f, 751 (entry->cpu_signature >> 4) & 0x0f, 752 entry->cpu_signature & 0x0f ); 753 754 printf( "\t 0x%04x\n", entry->feature_flags ); 755 } 756 757 758 /* 759 * 760 */ 761 static int 762 lookupBusType( char* name ) 763 { 764 int x; 765 766 for ( x = 0; x < MAX_BUSTYPE; ++x ) 767 if ( strcmp( busTypeTable[ x ].name, name ) == 0 ) 768 return busTypeTable[ x ].type; 769 770 return UNKNOWN_BUSTYPE; 771 } 772 773 774 static void 775 busEntry( bus_entry_ptr entry ) 776 { 777 int x; 778 char name[ 8 ]; 779 char c; 780 781 /* count it */ 782 ++nbus; 783 784 printf( "\t\t%2d", entry->bus_id ); 785 printf( "\t " ); pnstr( entry->bus_type, 6 ); printf( "\n" ); 786 787 for ( x = 0; x < 6; ++x ) { 788 if ( (c = entry->bus_type[ x ]) == ' ' ) 789 break; 790 name[ x ] = c; 791 } 792 name[ x ] = '\0'; 793 busses[ entry->bus_id ] = lookupBusType( name ); 794 } 795 796 797 static void 798 ioApicEntry( io_apic_entry_ptr entry ) 799 { 800 801 /* count it */ 802 ++napic; 803 804 printf( "\t\t%2d", entry->apic_id ); 805 printf( "\t 0x%02x", entry->apic_version ); 806 printf( "\t %s", 807 (entry->apic_flags & IOAPICENTRY_FLAG_EN) ? "usable" : "unusable" ); 808 printf( "\t\t 0x%x\n", entry->apic_address ); 809 810 apics[ entry->apic_id ] = entry->apic_id; 811 } 812 813 814 static const char *intTypes[] = { 815 "INT", "NMI", "SMI", "ExtINT" 816 }; 817 818 static const char *polarityMode[] = { 819 "conforms", "active-hi", "reserved", "active-lo" 820 }; 821 static const char *triggerMode[] = { 822 "conforms", "edge", "reserved", "level" 823 }; 824 825 static void 826 intEntry( int_entry_ptr entry ) 827 { 828 829 /* count it */ 830 if ( entry->type == MPCT_ENTRY_INT ) 831 ++nintr; 832 833 printf( "\t\t%s", intTypes[ entry->int_type ] ); 834 835 printf( "\t%9s", polarityMode[ entry->int_flags & INTENTRY_FLAGS_POLARITY ] ); 836 printf( "%12s", triggerMode[ (entry->int_flags & INTENTRY_FLAGS_TRIGGER) >> 2 ] ); 837 838 printf( "\t %5d", entry->src_bus_id ); 839 if ( busses[ entry->src_bus_id ] == PCI ) 840 printf( "\t%2d:%c", 841 (entry->src_bus_irq >> 2) & 0x1f, 842 (entry->src_bus_irq & 0x03) + 'A' ); 843 else 844 printf( "\t %3d", entry->src_bus_irq ); 845 printf( "\t %6d", entry->dst_apic_id ); 846 printf( "\t %3d\n", entry->dst_apic_int ); 847 } 848 849 850 static void 851 sasEntry( sas_entry_ptr entry ) 852 { 853 854 printf( "--\nSystem Address Space\n"); 855 printf( " bus ID: %d", entry->bus_id ); 856 printf( " address type: " ); 857 switch ( entry->address_type ) { 858 case SASENTRY_TYPE_IO: 859 printf( "I/O address\n" ); 860 break; 861 case SASENTRY_TYPE_MEMORY: 862 printf( "memory address\n" ); 863 break; 864 case SASENTRY_TYPE_PREFETCH: 865 printf( "prefetch address\n" ); 866 break; 867 default: 868 printf( "UNKNOWN type\n" ); 869 break; 870 } 871 872 printf( " address base: 0x%jx\n", (uintmax_t)entry->address_base ); 873 printf( " address range: 0x%jx\n", (uintmax_t)entry->address_length ); 874 } 875 876 877 static void 878 bhdEntry( bhd_entry_ptr entry ) 879 { 880 881 printf( "--\nBus Hierarchy\n" ); 882 printf( " bus ID: %d", entry->bus_id ); 883 printf( " bus info: 0x%02x", entry->bus_info ); 884 printf( " parent bus ID: %d\n", entry->parent_bus ); 885 } 886 887 888 static void 889 cbasmEntry( cbasm_entry_ptr entry ) 890 { 891 892 printf( "--\nCompatibility Bus Address\n" ); 893 printf( " bus ID: %d", entry->bus_id ); 894 printf( " address modifier: %s\n", 895 (entry->address_mod & CBASMENTRY_ADDRESS_MOD_SUBTRACT) ? 896 "subtract" : "add" ); 897 printf( " predefined range: 0x%08x\n", entry->predefined_range ); 898 } 899 900 901 /* 902 * do a dmesg output 903 */ 904 static void 905 doDmesg( void ) 906 { 907 puts( SEP_LINE ); 908 909 printf( "dmesg output:\n\n" ); 910 fflush( stdout ); 911 system( "dmesg" ); 912 } 913 914 915 /* 916 * 917 */ 918 static void 919 pnstr( char* s, int c ) 920 { 921 char string[ MAXPNSTR + 1 ]; 922 923 if ( c > MAXPNSTR ) 924 c = MAXPNSTR; 925 strncpy( string, s, c ); 926 string[ c ] = '\0'; 927 printf( "%s", string ); 928 } 929