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 #ifndef lint 33 static const char rcsid[] = 34 "$FreeBSD$"; 35 #endif /* not lint */ 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/param.h> 48 #include <sys/mman.h> 49 #include <x86/mptable.h> 50 #include <err.h> 51 #include <fcntl.h> 52 #include <paths.h> 53 #include <stdint.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <unistd.h> 58 59 #define SEP_LINE \ 60 "\n-------------------------------------------------------------------------------\n" 61 62 #define SEP_LINE2 \ 63 "\n===============================================================================\n" 64 65 /* EBDA is @ 40:0e in real-mode terms */ 66 #define EBDA_POINTER 0x040e /* location of EBDA pointer */ 67 68 /* CMOS 'top of mem' is @ 40:13 in real-mode terms */ 69 #define TOPOFMEM_POINTER 0x0413 /* BIOS: base memory size */ 70 71 #define DEFAULT_TOPOFMEM 0xa0000 72 73 #define BIOS_BASE 0xf0000 74 #define BIOS_BASE2 0xe0000 75 #define BIOS_SIZE 0x10000 76 #define ONE_KBYTE 1024 77 78 #define GROPE_AREA1 0x80000 79 #define GROPE_AREA2 0x90000 80 #define GROPE_SIZE 0x10000 81 82 #define MAXPNSTR 132 83 84 typedef struct BUSTYPENAME { 85 u_char type; 86 char name[ 7 ]; 87 } busTypeName; 88 89 static const busTypeName busTypeTable[] = 90 { 91 { CBUS, "CBUS" }, 92 { CBUSII, "CBUSII" }, 93 { EISA, "EISA" }, 94 { UNKNOWN_BUSTYPE, "---" }, 95 { UNKNOWN_BUSTYPE, "---" }, 96 { ISA, "ISA" }, 97 { UNKNOWN_BUSTYPE, "---" }, 98 { UNKNOWN_BUSTYPE, "---" }, 99 { UNKNOWN_BUSTYPE, "---" }, 100 { UNKNOWN_BUSTYPE, "---" }, 101 { UNKNOWN_BUSTYPE, "---" }, 102 { UNKNOWN_BUSTYPE, "---" }, 103 { PCI, "PCI" }, 104 { UNKNOWN_BUSTYPE, "---" }, 105 { UNKNOWN_BUSTYPE, "---" }, 106 { UNKNOWN_BUSTYPE, "---" }, 107 { UNKNOWN_BUSTYPE, "---" }, 108 { UNKNOWN_BUSTYPE, "---" }, 109 { UNKNOWN_BUSTYPE, "---" } 110 }; 111 112 static const char *whereStrings[] = { 113 "Extended BIOS Data Area", 114 "BIOS top of memory", 115 "Default top of memory", 116 "BIOS", 117 "Extended BIOS", 118 "GROPE AREA #1", 119 "GROPE AREA #2" 120 }; 121 122 static void apic_probe( u_int32_t* paddr, int* where ); 123 124 static void MPConfigDefault( int featureByte ); 125 126 static void MPFloatingPointer( u_int32_t paddr, int where, mpfps_t* mpfpsp ); 127 static void MPConfigTableHeader( u_int32_t pap ); 128 129 static void seekEntry( u_int32_t addr ); 130 static void readEntry( void* entry, int size ); 131 static void *mapEntry( u_int32_t addr, int size ); 132 133 static void processorEntry( proc_entry_ptr entry ); 134 static void busEntry( bus_entry_ptr entry ); 135 static void ioApicEntry( io_apic_entry_ptr entry ); 136 static void intEntry( int_entry_ptr entry ); 137 138 static void sasEntry( sas_entry_ptr entry ); 139 static void bhdEntry( bhd_entry_ptr entry ); 140 static void cbasmEntry( cbasm_entry_ptr entry ); 141 142 static void doDmesg( void ); 143 static void pnstr( char* s, int c ); 144 145 /* global data */ 146 static int pfd; /* physical /dev/mem fd */ 147 148 static int busses[256]; 149 static int apics[256]; 150 151 static int ncpu; 152 static int nbus; 153 static int napic; 154 static int nintr; 155 156 static int dmesg; 157 static int grope; 158 static int verbose; 159 160 static void 161 usage( void ) 162 { 163 fprintf( stderr, "usage: mptable [-dmesg] [-verbose] [-grope] [-help]\n" ); 164 exit( 0 ); 165 } 166 167 /* 168 * 169 */ 170 int 171 main( int argc, char *argv[] ) 172 { 173 u_int32_t paddr; 174 int where; 175 mpfps_t mpfps; 176 int defaultConfig; 177 178 int ch; 179 180 /* announce ourselves */ 181 puts( SEP_LINE2 ); 182 183 printf( "MPTable\n" ); 184 185 while ((ch = getopt(argc, argv, "d:g:h:v:")) != -1) { 186 switch(ch) { 187 case 'd': 188 if ( strcmp( optarg, "mesg") == 0 ) 189 dmesg = 1; 190 else 191 dmesg = 0; 192 break; 193 case 'h': 194 if ( strcmp( optarg, "elp") == 0 ) 195 usage(); 196 break; 197 case 'g': 198 if ( strcmp( optarg, "rope") == 0 ) 199 grope = 1; 200 break; 201 case 'v': 202 if ( strcmp( optarg, "erbose") == 0 ) 203 verbose = 1; 204 break; 205 default: 206 usage(); 207 } 208 argc -= optind; 209 argv += optind; 210 optreset = 1; 211 optind = 0; 212 } 213 214 /* open physical memory for access to MP structures */ 215 if ( (pfd = open( _PATH_MEM, O_RDONLY )) < 0 ) 216 err( 1, "mem open" ); 217 218 /* probe for MP structures */ 219 apic_probe( &paddr, &where ); 220 if ( where <= 0 ) { 221 fprintf( stderr, "\n MP FPS NOT found,\n" ); 222 if (!grope) 223 fprintf( stderr, " suggest trying -grope option!!!\n\n" ); 224 return 1; 225 } 226 227 if ( verbose ) 228 printf( "\n MP FPS found in %s @ physical addr: 0x%08x\n", 229 whereStrings[ where - 1 ], paddr ); 230 231 puts( SEP_LINE ); 232 233 /* analyze the MP Floating Pointer Structure */ 234 MPFloatingPointer( paddr, where, &mpfps ); 235 236 puts( SEP_LINE ); 237 238 /* check whether an MP config table exists */ 239 if ( (defaultConfig = mpfps->config_type) ) 240 MPConfigDefault( defaultConfig ); 241 else 242 MPConfigTableHeader( mpfps->pap ); 243 244 /* do a dmesg output */ 245 if ( dmesg ) 246 doDmesg(); 247 248 puts( SEP_LINE2 ); 249 250 return 0; 251 } 252 253 254 /* 255 * set PHYSICAL address of MP floating pointer structure 256 */ 257 #define NEXT(X) ((X) += 4) 258 static void 259 apic_probe( u_int32_t* paddr, int* where ) 260 { 261 /* 262 * c rewrite of apic_probe() by Jack F. Vogel 263 */ 264 265 int x; 266 u_short segment; 267 u_int32_t target; 268 u_int buffer[ BIOS_SIZE / sizeof( int ) ]; 269 270 if ( verbose ) 271 printf( "\n" ); 272 273 /* search Extended Bios Data Area, if present */ 274 if ( verbose ) 275 printf( " looking for EBDA pointer @ 0x%04x, ", EBDA_POINTER ); 276 seekEntry( (u_int32_t)EBDA_POINTER ); 277 readEntry( &segment, 2 ); 278 if ( segment ) { /* search EBDA */ 279 target = (u_int32_t)segment << 4; 280 if ( verbose ) 281 printf( "found, searching EBDA @ 0x%08x\n", target ); 282 seekEntry( target ); 283 readEntry( buffer, ONE_KBYTE ); 284 285 for ( x = 0; x < ONE_KBYTE / (int)sizeof ( unsigned int ); NEXT(x) ) { 286 if ( buffer[ x ] == MP_SIG ) { 287 *where = 1; 288 *paddr = (x * sizeof( unsigned int )) + target; 289 return; 290 } 291 } 292 } 293 else { 294 if ( verbose ) 295 printf( "NOT found\n" ); 296 } 297 298 /* read CMOS for real top of mem */ 299 seekEntry( (u_int32_t)TOPOFMEM_POINTER ); 300 readEntry( &segment, 2 ); 301 --segment; /* less ONE_KBYTE */ 302 target = segment * 1024; 303 if ( verbose ) 304 printf( " searching CMOS 'top of mem' @ 0x%08x (%dK)\n", 305 target, segment ); 306 seekEntry( target ); 307 readEntry( buffer, ONE_KBYTE ); 308 309 for ( x = 0; x < ONE_KBYTE / (int)sizeof ( unsigned int ); NEXT(x) ) { 310 if ( buffer[ x ] == MP_SIG ) { 311 *where = 2; 312 *paddr = (x * sizeof( unsigned int )) + target; 313 return; 314 } 315 } 316 317 /* we don't necessarily believe CMOS, check base of the last 1K of 640K */ 318 if ( target != (DEFAULT_TOPOFMEM - 1024)) { 319 target = (DEFAULT_TOPOFMEM - 1024); 320 if ( verbose ) 321 printf( " searching default 'top of mem' @ 0x%08x (%dK)\n", 322 target, (target / 1024) ); 323 seekEntry( target ); 324 readEntry( buffer, ONE_KBYTE ); 325 326 for ( x = 0; x < ONE_KBYTE / (int)sizeof ( unsigned int ); NEXT(x) ) { 327 if ( buffer[ x ] == MP_SIG ) { 328 *where = 3; 329 *paddr = (x * sizeof( unsigned int )) + target; 330 return; 331 } 332 } 333 } 334 335 /* search the BIOS */ 336 if ( verbose ) 337 printf( " searching BIOS @ 0x%08x\n", BIOS_BASE ); 338 seekEntry( BIOS_BASE ); 339 readEntry( buffer, BIOS_SIZE ); 340 341 for ( x = 0; x < BIOS_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 342 if ( buffer[ x ] == MP_SIG ) { 343 *where = 4; 344 *paddr = (x * sizeof( unsigned int )) + BIOS_BASE; 345 return; 346 } 347 } 348 349 /* search the extended BIOS */ 350 if ( verbose ) 351 printf( " searching extended BIOS @ 0x%08x\n", BIOS_BASE2 ); 352 seekEntry( BIOS_BASE2 ); 353 readEntry( buffer, BIOS_SIZE ); 354 355 for ( x = 0; x < BIOS_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 356 if ( buffer[ x ] == MP_SIG ) { 357 *where = 5; 358 *paddr = (x * sizeof( unsigned int )) + BIOS_BASE2; 359 return; 360 } 361 } 362 363 if ( grope ) { 364 /* search additional memory */ 365 target = GROPE_AREA1; 366 if ( verbose ) 367 printf( " groping memory @ 0x%08x\n", target ); 368 seekEntry( target ); 369 readEntry( buffer, GROPE_SIZE ); 370 371 for ( x = 0; x < GROPE_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 372 if ( buffer[ x ] == MP_SIG ) { 373 *where = 6; 374 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA1; 375 return; 376 } 377 } 378 379 target = GROPE_AREA2; 380 if ( verbose ) 381 printf( " groping memory @ 0x%08x\n", target ); 382 seekEntry( target ); 383 readEntry( buffer, GROPE_SIZE ); 384 385 for ( x = 0; x < GROPE_SIZE / (int)sizeof( unsigned int ); NEXT(x) ) { 386 if ( buffer[ x ] == MP_SIG ) { 387 *where = 7; 388 *paddr = (x * sizeof( unsigned int )) + GROPE_AREA2; 389 return; 390 } 391 } 392 } 393 394 *where = 0; 395 *paddr = (u_int32_t)0; 396 } 397 398 399 /* 400 * 401 */ 402 static void 403 MPFloatingPointer( u_int32_t paddr, int where, mpfps_t* mpfpsp ) 404 { 405 mpfps_t mpfps; 406 407 /* map in mpfps structure*/ 408 *mpfpsp = mpfps = mapEntry( paddr, sizeof( *mpfps ) ); 409 410 /* show its contents */ 411 printf( "MP Floating Pointer Structure:\n\n" ); 412 413 printf( " location:\t\t\t" ); 414 switch ( where ) 415 { 416 case 1: 417 printf( "EBDA\n" ); 418 break; 419 case 2: 420 printf( "BIOS base memory\n" ); 421 break; 422 case 3: 423 printf( "DEFAULT base memory (639K)\n" ); 424 break; 425 case 4: 426 printf( "BIOS\n" ); 427 break; 428 case 5: 429 printf( "Extended BIOS\n" ); 430 break; 431 432 case 0: 433 printf( "NOT found!\n" ); 434 exit( 1 ); 435 default: 436 printf( "BOGUS!\n" ); 437 exit( 1 ); 438 } 439 printf( " physical address:\t\t0x%08x\n", paddr ); 440 441 printf( " signature:\t\t\t'" ); 442 pnstr( mpfps->signature, 4 ); 443 printf( "'\n" ); 444 445 printf( " length:\t\t\t%d bytes\n", mpfps->length * 16 ); 446 printf( " version:\t\t\t1.%1d\n", mpfps->spec_rev ); 447 printf( " checksum:\t\t\t0x%02x\n", mpfps->checksum ); 448 449 /* bits 0:6 are RESERVED */ 450 if ( mpfps->mpfb2 & 0x7f ) { 451 printf( " warning, MP feature byte 2: 0x%02x\n", mpfps->mpfb2 ); 452 } 453 454 /* bit 7 is IMCRP */ 455 printf( " mode:\t\t\t\t%s\n", (mpfps->mpfb2 & MPFB2_IMCR_PRESENT) ? 456 "PIC" : "Virtual Wire" ); 457 458 /* MP feature bytes 3-5 are expected to be ZERO */ 459 if ( mpfps->mpfb3 ) 460 printf( " warning, MP feature byte 3 NONZERO!\n" ); 461 if ( mpfps->mpfb4 ) 462 printf( " warning, MP feature byte 4 NONZERO!\n" ); 463 if ( mpfps->mpfb5 ) 464 printf( " warning, MP feature byte 5 NONZERO!\n" ); 465 } 466 467 468 /* 469 * 470 */ 471 static void 472 MPConfigDefault( int featureByte ) 473 { 474 printf( " MP default config type: %d\n\n", featureByte ); 475 switch ( featureByte ) { 476 case 1: 477 printf( " bus: ISA, APIC: 82489DX\n" ); 478 break; 479 case 2: 480 printf( " bus: EISA, APIC: 82489DX\n" ); 481 break; 482 case 3: 483 printf( " bus: EISA, APIC: 82489DX\n" ); 484 break; 485 case 4: 486 printf( " bus: MCA, APIC: 82489DX\n" ); 487 break; 488 case 5: 489 printf( " bus: ISA+PCI, APIC: Integrated\n" ); 490 break; 491 case 6: 492 printf( " bus: EISA+PCI, APIC: Integrated\n" ); 493 break; 494 case 7: 495 printf( " bus: MCA+PCI, APIC: Integrated\n" ); 496 break; 497 default: 498 printf( " future type\n" ); 499 break; 500 } 501 502 switch ( featureByte ) { 503 case 1: 504 case 2: 505 case 3: 506 case 4: 507 nbus = 1; 508 break; 509 case 5: 510 case 6: 511 case 7: 512 nbus = 2; 513 break; 514 default: 515 printf( " future type\n" ); 516 break; 517 } 518 519 ncpu = 2; 520 napic = 1; 521 nintr = 16; 522 } 523 524 525 /* 526 * 527 */ 528 static void 529 MPConfigTableHeader( u_int32_t pap ) 530 { 531 mpcth_t cth; 532 int x; 533 int c; 534 int oldtype, entrytype; 535 u_int8_t *entry; 536 537 if ( pap == 0 ) { 538 printf( "MP Configuration Table Header MISSING!\n" ); 539 exit( 1 ); 540 } 541 542 /* map in cth structure */ 543 cth = mapEntry( pap, sizeof( *cth ) ); 544 545 printf( "MP Config Table Header:\n\n" ); 546 547 printf( " physical address:\t\t0x%08x\n", pap ); 548 549 printf( " signature:\t\t\t'" ); 550 pnstr( cth->signature, 4 ); 551 printf( "'\n" ); 552 553 printf( " base table length:\t\t%d\n", cth->base_table_length ); 554 555 printf( " version:\t\t\t1.%1d\n", cth->spec_rev ); 556 printf( " checksum:\t\t\t0x%02x\n", cth->checksum ); 557 558 printf( " OEM ID:\t\t\t'" ); 559 pnstr( cth->oem_id, 8 ); 560 printf( "'\n" ); 561 562 printf( " Product ID:\t\t\t'" ); 563 pnstr( cth->product_id, 12 ); 564 printf( "'\n" ); 565 566 printf( " OEM table pointer:\t\t0x%08x\n", cth->oem_table_pointer ); 567 printf( " OEM table size:\t\t%d\n", cth->oem_table_size ); 568 569 printf( " entry count:\t\t\t%d\n", cth->entry_count ); 570 571 printf( " local APIC address:\t\t0x%08x\n", cth->apic_address ); 572 573 printf( " extended table length:\t%d\n", cth->extended_table_length ); 574 printf( " extended table checksum:\t%d\n", cth->extended_table_checksum ); 575 576 puts( SEP_LINE ); 577 578 printf( "MP Config Base Table Entries:\n\n" ); 579 580 /* initialize tables */ 581 for (x = 0; x < (int)nitems(busses); x++) 582 busses[x] = 0xff; 583 584 for (x = 0; x < (int)nitems(apics); x++) 585 apics[x] = 0xff; 586 587 ncpu = 0; 588 nbus = 0; 589 napic = 0; 590 nintr = 0; 591 592 oldtype = -1; 593 entry = mapEntry(pap + sizeof(*cth), cth->base_table_length); 594 for (c = cth->entry_count; c; c--) { 595 entrytype = *entry; 596 if (entrytype != oldtype) 597 printf("--\n"); 598 if (entrytype < oldtype) 599 printf("MPTABLE OUT OF ORDER!\n"); 600 switch (entrytype) { 601 case MPCT_ENTRY_PROCESSOR: 602 if (oldtype != MPCT_ENTRY_PROCESSOR) 603 printf( "Processors:\tAPIC ID\tVersion\tState" 604 "\t\tFamily\tModel\tStep\tFlags\n" ); 605 processorEntry((proc_entry_ptr)entry); 606 entry += sizeof(struct PROCENTRY); 607 break; 608 609 case MPCT_ENTRY_BUS: 610 if (oldtype != MPCT_ENTRY_BUS) 611 printf( "Bus:\t\tBus ID\tType\n" ); 612 busEntry((bus_entry_ptr)entry); 613 entry += sizeof(struct BUSENTRY); 614 break; 615 616 case MPCT_ENTRY_IOAPIC: 617 if (oldtype != MPCT_ENTRY_IOAPIC) 618 printf( "I/O APICs:\tAPIC ID\tVersion\tState\t\tAddress\n" ); 619 ioApicEntry((io_apic_entry_ptr)entry); 620 entry += sizeof(struct IOAPICENTRY); 621 break; 622 623 case MPCT_ENTRY_INT: 624 if (oldtype != MPCT_ENTRY_INT) 625 printf( "I/O Ints:\tType\tPolarity Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" ); 626 intEntry((int_entry_ptr)entry); 627 entry += sizeof(struct INTENTRY); 628 break; 629 630 case MPCT_ENTRY_LOCAL_INT: 631 if (oldtype != MPCT_ENTRY_LOCAL_INT) 632 printf( "Local Ints:\tType\tPolarity Trigger\tBus ID\t IRQ\tAPIC ID\tPIN#\n" ); 633 intEntry((int_entry_ptr)entry); 634 entry += sizeof(struct INTENTRY); 635 break; 636 637 default: 638 printf("MPTABLE HOSED! record type = %d\n", entrytype); 639 exit(1); 640 } 641 oldtype = entrytype; 642 } 643 644 645 #if defined( EXTENDED_PROCESSING_READY ) 646 /* process any extended data */ 647 if ( cth->extended_table_length ) { 648 ext_entry_ptr ext_entry, end; 649 650 puts( SEP_LINE ); 651 652 printf( "MP Config Extended Table Entries:\n\n" ); 653 654 ext_entry = mapEntry(pap + cth->base_table_length, 655 cth->extended_table_length); 656 end = (ext_entry_ptr)((char *)ext_entry + cth->extended_table_length); 657 while (ext_entry < end) { 658 switch (ext_entry->type) { 659 case MPCT_EXTENTRY_SAS: 660 sasEntry((sas_entry_ptr)ext_entry); 661 break; 662 case MPCT_EXTENTRY_BHD: 663 bhdEntry((bhd_entry_ptr)ext_entry); 664 break; 665 case MPCT_EXTENTRY_CBASM: 666 cbasmEntry((cbasm_entry_ptr)ext_entry); 667 break; 668 default: 669 printf( "Extended Table HOSED!\n" ); 670 exit( 1 ); 671 } 672 673 ext_entry = (ext_entry_ptr)((char *)ext_entry + ext_entry->length); 674 } 675 } 676 #endif /* EXTENDED_PROCESSING_READY */ 677 678 /* process any OEM data */ 679 if ( cth->oem_table_pointer && (cth->oem_table_size > 0) ) { 680 #if defined( OEM_PROCESSING_READY ) 681 # error your on your own here! 682 /* map in oem table structure */ 683 oemdata = mapEntry( cth->oem_table_pointer, cth->oem_table_size); 684 685 /** process it */ 686 #else 687 printf( "\nyou need to modify the source to handle OEM data!\n\n" ); 688 #endif /* OEM_PROCESSING_READY */ 689 } 690 691 fflush( stdout ); 692 693 #if defined( RAW_DUMP ) 694 { 695 int ofd; 696 void *dumpbuf; 697 698 ofd = open( "/tmp/mpdump", O_CREAT | O_RDWR, 0666 ); 699 700 dumpbuf = mapEntry( paddr, 1024 ); 701 write( ofd, dumpbuf, 1024 ); 702 close( ofd ); 703 } 704 #endif /* RAW_DUMP */ 705 } 706 707 708 /* 709 * 710 */ 711 static void 712 seekEntry( u_int32_t addr ) 713 { 714 if ( lseek( pfd, (off_t)addr, SEEK_SET ) < 0 ) 715 err( 1, "%s seek", _PATH_MEM ); 716 } 717 718 719 /* 720 * 721 */ 722 static void 723 readEntry( void* entry, int size ) 724 { 725 if ( read( pfd, entry, size ) != size ) 726 err( 1, "readEntry" ); 727 } 728 729 static void * 730 mapEntry( u_int32_t addr, int size ) 731 { 732 void *p; 733 734 p = mmap( NULL, size, PROT_READ, MAP_SHARED, pfd, addr ); 735 if (p == MAP_FAILED) 736 err( 1, "mapEntry" ); 737 return (p); 738 } 739 740 static void 741 processorEntry( proc_entry_ptr entry ) 742 { 743 744 /* count it */ 745 ++ncpu; 746 747 printf( "\t\t%2d", entry->apic_id ); 748 printf( "\t 0x%2x", entry->apic_version ); 749 750 printf( "\t %s, %s", 751 (entry->cpu_flags & PROCENTRY_FLAG_BP) ? "BSP" : "AP", 752 (entry->cpu_flags & PROCENTRY_FLAG_EN) ? "usable" : "unusable" ); 753 754 printf( "\t %d\t %d\t %d", 755 (entry->cpu_signature >> 8) & 0x0f, 756 (entry->cpu_signature >> 4) & 0x0f, 757 entry->cpu_signature & 0x0f ); 758 759 printf( "\t 0x%04x\n", entry->feature_flags ); 760 } 761 762 763 /* 764 * 765 */ 766 static int 767 lookupBusType( char* name ) 768 { 769 int x; 770 771 for ( x = 0; x < MAX_BUSTYPE; ++x ) 772 if ( strcmp( busTypeTable[ x ].name, name ) == 0 ) 773 return busTypeTable[ x ].type; 774 775 return UNKNOWN_BUSTYPE; 776 } 777 778 779 static void 780 busEntry( bus_entry_ptr entry ) 781 { 782 int x; 783 char name[ 8 ]; 784 char c; 785 786 /* count it */ 787 ++nbus; 788 789 printf( "\t\t%2d", entry->bus_id ); 790 printf( "\t " ); pnstr( entry->bus_type, 6 ); printf( "\n" ); 791 792 for ( x = 0; x < 6; ++x ) { 793 if ( (c = entry->bus_type[ x ]) == ' ' ) 794 break; 795 name[ x ] = c; 796 } 797 name[ x ] = '\0'; 798 busses[ entry->bus_id ] = lookupBusType( name ); 799 } 800 801 802 static void 803 ioApicEntry( io_apic_entry_ptr entry ) 804 { 805 806 /* count it */ 807 ++napic; 808 809 printf( "\t\t%2d", entry->apic_id ); 810 printf( "\t 0x%02x", entry->apic_version ); 811 printf( "\t %s", 812 (entry->apic_flags & IOAPICENTRY_FLAG_EN) ? "usable" : "unusable" ); 813 printf( "\t\t 0x%x\n", entry->apic_address ); 814 815 apics[ entry->apic_id ] = entry->apic_id; 816 } 817 818 819 static const char *intTypes[] = { 820 "INT", "NMI", "SMI", "ExtINT" 821 }; 822 823 static const char *polarityMode[] = { 824 "conforms", "active-hi", "reserved", "active-lo" 825 }; 826 static const char *triggerMode[] = { 827 "conforms", "edge", "reserved", "level" 828 }; 829 830 static void 831 intEntry( int_entry_ptr entry ) 832 { 833 834 /* count it */ 835 if ( entry->type == MPCT_ENTRY_INT ) 836 ++nintr; 837 838 printf( "\t\t%s", intTypes[ entry->int_type ] ); 839 840 printf( "\t%9s", polarityMode[ entry->int_flags & INTENTRY_FLAGS_POLARITY ] ); 841 printf( "%12s", triggerMode[ (entry->int_flags & INTENTRY_FLAGS_TRIGGER) >> 2 ] ); 842 843 printf( "\t %5d", entry->src_bus_id ); 844 if ( busses[ entry->src_bus_id ] == PCI ) 845 printf( "\t%2d:%c", 846 (entry->src_bus_irq >> 2) & 0x1f, 847 (entry->src_bus_irq & 0x03) + 'A' ); 848 else 849 printf( "\t %3d", entry->src_bus_irq ); 850 printf( "\t %6d", entry->dst_apic_id ); 851 printf( "\t %3d\n", entry->dst_apic_int ); 852 } 853 854 855 static void 856 sasEntry( sas_entry_ptr entry ) 857 { 858 859 printf( "--\nSystem Address Space\n"); 860 printf( " bus ID: %d", entry->bus_id ); 861 printf( " address type: " ); 862 switch ( entry->address_type ) { 863 case SASENTRY_TYPE_IO: 864 printf( "I/O address\n" ); 865 break; 866 case SASENTRY_TYPE_MEMORY: 867 printf( "memory address\n" ); 868 break; 869 case SASENTRY_TYPE_PREFETCH: 870 printf( "prefetch address\n" ); 871 break; 872 default: 873 printf( "UNKNOWN type\n" ); 874 break; 875 } 876 877 printf( " address base: 0x%jx\n", (uintmax_t)entry->address_base ); 878 printf( " address range: 0x%jx\n", (uintmax_t)entry->address_length ); 879 } 880 881 882 static void 883 bhdEntry( bhd_entry_ptr entry ) 884 { 885 886 printf( "--\nBus Hierarchy\n" ); 887 printf( " bus ID: %d", entry->bus_id ); 888 printf( " bus info: 0x%02x", entry->bus_info ); 889 printf( " parent bus ID: %d\n", entry->parent_bus ); 890 } 891 892 893 static void 894 cbasmEntry( cbasm_entry_ptr entry ) 895 { 896 897 printf( "--\nCompatibility Bus Address\n" ); 898 printf( " bus ID: %d", entry->bus_id ); 899 printf( " address modifier: %s\n", 900 (entry->address_mod & CBASMENTRY_ADDRESS_MOD_SUBTRACT) ? 901 "subtract" : "add" ); 902 printf( " predefined range: 0x%08x\n", entry->predefined_range ); 903 } 904 905 906 /* 907 * do a dmesg output 908 */ 909 static void 910 doDmesg( void ) 911 { 912 puts( SEP_LINE ); 913 914 printf( "dmesg output:\n\n" ); 915 fflush( stdout ); 916 system( "dmesg" ); 917 } 918 919 920 /* 921 * 922 */ 923 static void 924 pnstr( char* s, int c ) 925 { 926 char string[ MAXPNSTR + 1 ]; 927 928 if ( c > MAXPNSTR ) 929 c = MAXPNSTR; 930 strncpy( string, s, c ); 931 string[ c ] = '\0'; 932 printf( "%s", string ); 933 } 934