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
79typedef struct BUSTYPENAME {
80    u_char	type;
81    char	name[ 7 ];
82} busTypeName;
83
84static 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
107static 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
117static void apic_probe( u_int32_t* paddr, int* where );
118
119static void MPConfigDefault( int featureByte );
120
121static void MPFloatingPointer( u_int32_t paddr, int where, mpfps_t* mpfpsp );
122static void MPConfigTableHeader( u_int32_t pap );
123
124static void seekEntry( u_int32_t addr );
125static void readEntry( void* entry, int size );
126static void *mapEntry( u_int32_t addr, int size );
127
128static void processorEntry( proc_entry_ptr entry );
129static void busEntry( bus_entry_ptr entry );
130static void ioApicEntry( io_apic_entry_ptr entry );
131static void intEntry( int_entry_ptr entry );
132
133static void sasEntry( sas_entry_ptr entry );
134static void bhdEntry( bhd_entry_ptr entry );
135static void cbasmEntry( cbasm_entry_ptr entry );
136
137static void doDmesg( void );
138static void pnstr( char* s, int c );
139
140/* global data */
141static int	pfd;		/* physical /dev/mem fd */
142
143static int	busses[256];
144static int	apics[256];
145
146static int	ncpu;
147static int	nbus;
148static int	napic;
149static int	nintr;
150
151static int	dmesg;
152static int	grope;
153static int	verbose;
154
155static void
156usage( void )
157{
158    fprintf( stderr, "usage: mptable [-dmesg] [-verbose] [-grope] [-help]\n" );
159    exit( 0 );
160}
161
162/*
163 *
164 */
165int
166main( 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)
255static void
256apic_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 */
399static void
400MPFloatingPointer( 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 */
468static void
469MPConfigDefault( 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 */
525static void
526MPConfigTableHeader( 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 */
708static void
709seekEntry( 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 */
719static void
720readEntry( void* entry, int size )
721{
722    if ( read( pfd, entry, size ) != size )
723        err( 1, "readEntry" );
724}
725
726static void *
727mapEntry( 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
737static void
738processorEntry( 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 */
763static int
764lookupBusType( 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
776static void
777busEntry( 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
799static void
800ioApicEntry( 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
816static const char *intTypes[] = {
817    "INT", "NMI", "SMI", "ExtINT"
818};
819
820static const char *polarityMode[] = {
821    "conforms", "active-hi", "reserved", "active-lo"
822};
823static const char *triggerMode[] = {
824    "conforms", "edge", "reserved", "level"
825};
826
827static void
828intEntry( 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
852static void
853sasEntry( 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
879static void
880bhdEntry( 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
890static void
891cbasmEntry( 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 */
906static void
907doDmesg( 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 */
920static void
921pnstr( 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