usr.sbin/acpi/acpidump/acpi.c

   1 /*-
   2  * Copyright (c) 1998 Doug Rabson
   3  * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  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  *      $FreeBSD$
  28  */
  29
  30 #include <sys/param.h>
  31 #include <sys/endian.h>
  32 #include <sys/stat.h>
  33 #include <sys/wait.h>
  34 #include <assert.h>
  35 #include <err.h>
  36 #include <fcntl.h>
  37 #include <paths.h>
  38 #include <stdio.h>
  39 #include <stdint.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <unistd.h>
  43
  44 #include "acpidump.h"
  45
  46 #define BEGIN_COMMENT   "/*\n"
  47 #define END_COMMENT     " */\n"
  48
  49 static void     acpi_print_string(char *s, size_t length);
  50 static void     acpi_print_gas(ACPI_GENERIC_ADDRESS *gas);
  51 static int      acpi_get_fadt_revision(ACPI_TABLE_FADT *fadt);
  52 static void     acpi_handle_fadt(ACPI_TABLE_HEADER *fadt);
  53 static void     acpi_print_cpu(u_char cpu_id);
  54 static void     acpi_print_cpu_uid(uint32_t uid, char *uid_string);
  55 static void     acpi_print_local_apic(uint32_t apic_id, uint32_t flags);
  56 static void     acpi_print_io_apic(uint32_t apic_id, uint32_t int_base,
  57                     uint64_t apic_addr);
  58 static void     acpi_print_mps_flags(uint16_t flags);
  59 static void     acpi_print_intr(uint32_t intr, uint16_t mps_flags);
  60 static void     acpi_print_local_nmi(u_int lint, uint16_t mps_flags);
  61 static void     acpi_print_madt(ACPI_SUBTABLE_HEADER *mp);
  62 static void     acpi_handle_madt(ACPI_TABLE_HEADER *sdp);
  63 static void     acpi_handle_ecdt(ACPI_TABLE_HEADER *sdp);
  64 static void     acpi_handle_hpet(ACPI_TABLE_HEADER *sdp);
  65 static void     acpi_handle_mcfg(ACPI_TABLE_HEADER *sdp);
  66 static void     acpi_print_srat_cpu(uint32_t apic_id, uint32_t proximity_domain,
  67                     uint32_t flags);
  68 static void     acpi_print_srat_memory(ACPI_SRAT_MEM_AFFINITY *mp);
  69 static void     acpi_print_srat(ACPI_SUBTABLE_HEADER *srat);
  70 static void     acpi_handle_srat(ACPI_TABLE_HEADER *sdp);
  71 static void     acpi_handle_tcpa(ACPI_TABLE_HEADER *sdp);
  72 static void     acpi_print_sdt(ACPI_TABLE_HEADER *sdp);
  73 static void     acpi_print_fadt(ACPI_TABLE_HEADER *sdp);
  74 static void     acpi_print_facs(ACPI_TABLE_FACS *facs);
  75 static void     acpi_print_dsdt(ACPI_TABLE_HEADER *dsdp);
  76 static ACPI_TABLE_HEADER *acpi_map_sdt(vm_offset_t pa);
  77 static void     acpi_print_rsd_ptr(ACPI_TABLE_RSDP *rp);
  78 static void     acpi_handle_rsdt(ACPI_TABLE_HEADER *rsdp);
  79 static void     acpi_walk_subtables(ACPI_TABLE_HEADER *table, void *first,
  80                     void (*action)(ACPI_SUBTABLE_HEADER *));
  81
  82 /* Size of an address. 32-bit for ACPI 1.0, 64-bit for ACPI 2.0 and up. */
  83 static int addr_size;
  84
  85 /* Strings used in the TCPA table */
  86 static const char *tcpa_event_type_strings[] = {
  87         "PREBOOT Certificate",
  88         "POST Code",
  89         "Unused",
  90         "No Action",
  91         "Separator",
  92         "Action",
  93         "Event Tag",
  94         "S-CRTM Contents",
  95         "S-CRTM Version",
  96         "CPU Microcode",
  97         "Platform Config Flags",
  98         "Table of Devices",
  99         "Compact Hash",
 100         "IPL",
 101         "IPL Partition Data",
 102         "Non-Host Code",
 103         "Non-Host Config",
 104         "Non-Host Info"
 105 };
 106
 107 static const char *TCPA_pcclient_strings[] = {
 108         "<undefined>",
 109         "SMBIOS",
 110         "BIS Certificate",
 111         "POST BIOS ROM Strings",
 112         "ESCD",
 113         "CMOS",
 114         "NVRAM",
 115         "Option ROM Execute",
 116         "Option ROM Configurateion",
 117         "<undefined>",
 118         "Option ROM Microcode Update ",
 119         "S-CRTM Version String",
 120         "S-CRTM Contents",
 121         "POST Contents",
 122         "Table of Devices",
 123 };
 124
 125 static void
 126 acpi_print_string(char *s, size_t length)
 127 {
 128         int     c;
 129
 130         /* Trim trailing spaces and NULLs */
 131         while (length > 0 && (s[length - 1] == ' ' || s[length - 1] == '\0'))
 132                 length--;
 133
 134         while (length--) {
 135                 c = *s++;
 136                 putchar(c);
 137         }
 138 }
 139
 140 static void
 141 acpi_print_gas(ACPI_GENERIC_ADDRESS *gas)
 142 {
 143         switch(gas->SpaceId) {
 144         case ACPI_GAS_MEMORY:
 145                 printf("0x%08lx:%u[%u] (Memory)", (u_long)gas->Address,
 146                        gas->BitOffset, gas->BitWidth);
 147                 break;
 148         case ACPI_GAS_IO:
 149                 printf("0x%02lx:%u[%u] (IO)", (u_long)gas->Address,
 150                        gas->BitOffset, gas->BitWidth);
 151                 break;
 152         case ACPI_GAS_PCI:
 153                 printf("%x:%x+0x%x (PCI)", (uint16_t)(gas->Address >> 32),
 154                        (uint16_t)((gas->Address >> 16) & 0xffff),
 155                        (uint16_t)gas->Address);
 156                 break;
 157         /* XXX How to handle these below? */
 158         case ACPI_GAS_EMBEDDED:
 159                 printf("0x%x:%u[%u] (EC)", (uint16_t)gas->Address,
 160                        gas->BitOffset, gas->BitWidth);
 161                 break;
 162         case ACPI_GAS_SMBUS:
 163                 printf("0x%x:%u[%u] (SMBus)", (uint16_t)gas->Address,
 164                        gas->BitOffset, gas->BitWidth);
 165                 break;
 166         case ACPI_GAS_CMOS:
 167         case ACPI_GAS_PCIBAR:
 168         case ACPI_GAS_DATATABLE:
 169         case ACPI_GAS_FIXED:
 170         default:
 171                 printf("0x%08lx (?)", (u_long)gas->Address);
 172                 break;
 173         }
 174 }
 175
 176 /* The FADT revision indicates whether we use the DSDT or X_DSDT addresses. */
 177 static int
 178 acpi_get_fadt_revision(ACPI_TABLE_FADT *fadt)
 179 {
 180         int fadt_revision;
 181
 182         /* Set the FADT revision separately from the RSDP version. */
 183         if (addr_size == 8) {
 184                 fadt_revision = 2;
 185
 186                 /*
 187                  * A few systems (e.g., IBM T23) have an RSDP that claims
 188                  * revision 2 but the 64 bit addresses are invalid.  If
 189                  * revision 2 and the 32 bit address is non-zero but the
 190                  * 32 and 64 bit versions don't match, prefer the 32 bit
 191                  * version for all subsequent tables.
 192                  */
 193                 if (fadt->Facs != 0 &&
 194                     (fadt->XFacs & 0xffffffff) != fadt->Facs)
 195                         fadt_revision = 1;
 196         } else
 197                 fadt_revision = 1;
 198         return (fadt_revision);
 199 }
 200
 201 static void
 202 acpi_handle_fadt(ACPI_TABLE_HEADER *sdp)
 203 {
 204         ACPI_TABLE_HEADER *dsdp;
 205         ACPI_TABLE_FACS *facs;
 206         ACPI_TABLE_FADT *fadt;
 207         int             fadt_revision;
 208
 209         fadt = (ACPI_TABLE_FADT *)sdp;
 210         acpi_print_fadt(sdp);
 211
 212         fadt_revision = acpi_get_fadt_revision(fadt);
 213         if (fadt_revision == 1)
 214                 facs = (ACPI_TABLE_FACS *)acpi_map_sdt(fadt->Facs);
 215         else
 216                 facs = (ACPI_TABLE_FACS *)acpi_map_sdt(fadt->XFacs);
 217         if (memcmp(facs->Signature, ACPI_SIG_FACS, 4) != 0 || facs->Length < 64)
 218                 errx(1, "FACS is corrupt");
 219         acpi_print_facs(facs);
 220
 221         if (fadt_revision == 1)
 222                 dsdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(fadt->Dsdt);
 223         else
 224                 dsdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(fadt->XDsdt);
 225         if (acpi_checksum(dsdp, dsdp->Length))
 226                 errx(1, "DSDT is corrupt");
 227         acpi_print_dsdt(dsdp);
 228 }
 229
 230 static void
 231 acpi_walk_subtables(ACPI_TABLE_HEADER *table, void *first,
 232     void (*action)(ACPI_SUBTABLE_HEADER *))
 233 {
 234         ACPI_SUBTABLE_HEADER *subtable;
 235         char *end;
 236
 237         subtable = first;
 238         end = (char *)table + table->Length;
 239         while ((char *)subtable < end) {
 240                 printf("\n");
 241                 action(subtable);
 242                 subtable = (ACPI_SUBTABLE_HEADER *)((char *)subtable +
 243                     subtable->Length);
 244         }
 245 }
 246
 247 static void
 248 acpi_print_cpu(u_char cpu_id)
 249 {
 250
 251         printf("\tACPI CPU=");
 252         if (cpu_id == 0xff)
 253                 printf("ALL\n");
 254         else
 255                 printf("%d\n", (u_int)cpu_id);
 256 }
 257
 258 static void
 259 acpi_print_cpu_uid(uint32_t uid, char *uid_string)
 260 {
 261
 262         printf("\tUID=%d", uid);
 263         if (uid_string != NULL)
 264                 printf(" (%s)", uid_string);
 265         printf("\n");
 266 }
 267
 268 static void
 269 acpi_print_local_apic(uint32_t apic_id, uint32_t flags)
 270 {
 271
 272         printf("\tFlags={");
 273         if (flags & ACPI_MADT_ENABLED)
 274                 printf("ENABLED");
 275         else
 276                 printf("DISABLED");
 277         printf("}\n");
 278         printf("\tAPIC ID=%d\n", apic_id);
 279 }
 280
 281 static void
 282 acpi_print_io_apic(uint32_t apic_id, uint32_t int_base, uint64_t apic_addr)
 283 {
 284
 285         printf("\tAPIC ID=%d\n", apic_id);
 286         printf("\tINT BASE=%d\n", int_base);
 287         printf("\tADDR=0x%016jx\n", (uintmax_t)apic_addr);
 288 }
 289
 290 static void
 291 acpi_print_mps_flags(uint16_t flags)
 292 {
 293
 294         printf("\tFlags={Polarity=");
 295         switch (flags & ACPI_MADT_POLARITY_MASK) {
 296         case ACPI_MADT_POLARITY_CONFORMS:
 297                 printf("conforming");
 298                 break;
 299         case ACPI_MADT_POLARITY_ACTIVE_HIGH:
 300                 printf("active-hi");
 301                 break;
 302         case ACPI_MADT_POLARITY_ACTIVE_LOW:
 303                 printf("active-lo");
 304                 break;
 305         default:
 306                 printf("0x%x", flags & ACPI_MADT_POLARITY_MASK);
 307                 break;
 308         }
 309         printf(", Trigger=");
 310         switch (flags & ACPI_MADT_TRIGGER_MASK) {
 311         case ACPI_MADT_TRIGGER_CONFORMS:
 312                 printf("conforming");
 313                 break;
 314         case ACPI_MADT_TRIGGER_EDGE:
 315                 printf("edge");
 316                 break;
 317         case ACPI_MADT_TRIGGER_LEVEL:
 318                 printf("level");
 319                 break;
 320         default:
 321                 printf("0x%x", (flags & ACPI_MADT_TRIGGER_MASK) >> 2);
 322         }
 323         printf("}\n");
 324 }
 325
 326 static void
 327 acpi_print_intr(uint32_t intr, uint16_t mps_flags)
 328 {
 329
 330         printf("\tINTR=%d\n", intr);
 331         acpi_print_mps_flags(mps_flags);
 332 }
 333
 334 static void
 335 acpi_print_local_nmi(u_int lint, uint16_t mps_flags)
 336 {
 337
 338         printf("\tLINT Pin=%d\n", lint);
 339         acpi_print_mps_flags(mps_flags);
 340 }
 341
 342 const char *apic_types[] = { "Local APIC", "IO APIC", "INT Override", "NMI",
 343                              "Local APIC NMI", "Local APIC Override",
 344                              "IO SAPIC", "Local SAPIC", "Platform Interrupt",
 345                              "Local X2APIC", "Local X2APIC NMI" };
 346 const char *platform_int_types[] = { "0 (unknown)", "PMI", "INIT",
 347                                      "Corrected Platform Error" };
 348
 349 static void
 350 acpi_print_madt(ACPI_SUBTABLE_HEADER *mp)
 351 {
 352         ACPI_MADT_LOCAL_APIC *lapic;
 353         ACPI_MADT_IO_APIC *ioapic;
 354         ACPI_MADT_INTERRUPT_OVERRIDE *over;
 355         ACPI_MADT_NMI_SOURCE *nmi;
 356         ACPI_MADT_LOCAL_APIC_NMI *lapic_nmi;
 357         ACPI_MADT_LOCAL_APIC_OVERRIDE *lapic_over;
 358         ACPI_MADT_IO_SAPIC *iosapic;
 359         ACPI_MADT_LOCAL_SAPIC *lsapic;
 360         ACPI_MADT_INTERRUPT_SOURCE *isrc;
 361         ACPI_MADT_LOCAL_X2APIC *x2apic;
 362         ACPI_MADT_LOCAL_X2APIC_NMI *x2apic_nmi;
 363
 364         if (mp->Type < sizeof(apic_types) / sizeof(apic_types[0]))
 365                 printf("\tType=%s\n", apic_types[mp->Type]);
 366         else
 367                 printf("\tType=%d (unknown)\n", mp->Type);
 368         switch (mp->Type) {
 369         case ACPI_MADT_TYPE_LOCAL_APIC:
 370                 lapic = (ACPI_MADT_LOCAL_APIC *)mp;
 371                 acpi_print_cpu(lapic->ProcessorId);
 372                 acpi_print_local_apic(lapic->Id, lapic->LapicFlags);
 373                 break;
 374         case ACPI_MADT_TYPE_IO_APIC:
 375                 ioapic = (ACPI_MADT_IO_APIC *)mp;
 376                 acpi_print_io_apic(ioapic->Id, ioapic->GlobalIrqBase,
 377                     ioapic->Address);
 378                 break;
 379         case ACPI_MADT_TYPE_INTERRUPT_OVERRIDE:
 380                 over = (ACPI_MADT_INTERRUPT_OVERRIDE *)mp;
 381                 printf("\tBUS=%d\n", (u_int)over->Bus);
 382                 printf("\tIRQ=%d\n", (u_int)over->SourceIrq);
 383                 acpi_print_intr(over->GlobalIrq, over->IntiFlags);
 384                 break;
 385         case ACPI_MADT_TYPE_NMI_SOURCE:
 386                 nmi = (ACPI_MADT_NMI_SOURCE *)mp;
 387                 acpi_print_intr(nmi->GlobalIrq, nmi->IntiFlags);
 388                 break;
 389         case ACPI_MADT_TYPE_LOCAL_APIC_NMI:
 390                 lapic_nmi = (ACPI_MADT_LOCAL_APIC_NMI *)mp;
 391                 acpi_print_cpu(lapic_nmi->ProcessorId);
 392                 acpi_print_local_nmi(lapic_nmi->Lint, lapic_nmi->IntiFlags);
 393                 break;
 394         case ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE:
 395                 lapic_over = (ACPI_MADT_LOCAL_APIC_OVERRIDE *)mp;
 396                 printf("\tLocal APIC ADDR=0x%016jx\n",
 397                     (uintmax_t)lapic_over->Address);
 398                 break;
 399         case ACPI_MADT_TYPE_IO_SAPIC:
 400                 iosapic = (ACPI_MADT_IO_SAPIC *)mp;
 401                 acpi_print_io_apic(iosapic->Id, iosapic->GlobalIrqBase,
 402                     iosapic->Address);
 403                 break;
 404         case ACPI_MADT_TYPE_LOCAL_SAPIC:
 405                 lsapic = (ACPI_MADT_LOCAL_SAPIC *)mp;
 406                 acpi_print_cpu(lsapic->ProcessorId);
 407                 acpi_print_local_apic(lsapic->Id, lsapic->LapicFlags);
 408                 printf("\tAPIC EID=%d\n", (u_int)lsapic->Eid);
 409                 if (mp->Length > __offsetof(ACPI_MADT_LOCAL_SAPIC, Uid))
 410                         acpi_print_cpu_uid(lsapic->Uid, lsapic->UidString);
 411                 break;
 412         case ACPI_MADT_TYPE_INTERRUPT_SOURCE:
 413                 isrc = (ACPI_MADT_INTERRUPT_SOURCE *)mp;
 414                 if (isrc->Type < sizeof(platform_int_types) /
 415                     sizeof(platform_int_types[0]))
 416                         printf("\tType=%s\n", platform_int_types[isrc->Type]);
 417                 else
 418                         printf("\tType=%d (unknown)\n", isrc->Type);
 419                 printf("\tAPIC ID=%d\n", (u_int)isrc->Id);
 420                 printf("\tAPIC EID=%d\n", (u_int)isrc->Eid);
 421                 printf("\tSAPIC Vector=%d\n", (u_int)isrc->IoSapicVector);
 422                 acpi_print_intr(isrc->GlobalIrq, isrc->IntiFlags);
 423                 break;
 424         case ACPI_MADT_TYPE_LOCAL_X2APIC:
 425                 x2apic = (ACPI_MADT_LOCAL_X2APIC *)mp;
 426                 acpi_print_cpu_uid(x2apic->Uid, NULL);
 427                 acpi_print_local_apic(x2apic->LocalApicId, x2apic->LapicFlags);
 428                 break;
 429         case ACPI_MADT_TYPE_LOCAL_X2APIC_NMI:
 430                 x2apic_nmi = (ACPI_MADT_LOCAL_X2APIC_NMI *)mp;
 431                 acpi_print_cpu_uid(x2apic_nmi->Uid, NULL);
 432                 acpi_print_local_nmi(x2apic_nmi->Lint, x2apic_nmi->IntiFlags);
 433                 break;
 434         }
 435 }
 436
 437 static void
 438 acpi_handle_madt(ACPI_TABLE_HEADER *sdp)
 439 {
 440         ACPI_TABLE_MADT *madt;
 441
 442         printf(BEGIN_COMMENT);
 443         acpi_print_sdt(sdp);
 444         madt = (ACPI_TABLE_MADT *)sdp;
 445         printf("\tLocal APIC ADDR=0x%08x\n", madt->Address);
 446         printf("\tFlags={");
 447         if (madt->Flags & ACPI_MADT_PCAT_COMPAT)
 448                 printf("PC-AT");
 449         printf("}\n");
 450         acpi_walk_subtables(sdp, (madt + 1), acpi_print_madt);
 451         printf(END_COMMENT);
 452 }
 453
 454 static void
 455 acpi_handle_hpet(ACPI_TABLE_HEADER *sdp)
 456 {
 457         ACPI_TABLE_HPET *hpet;
 458
 459         printf(BEGIN_COMMENT);
 460         acpi_print_sdt(sdp);
 461         hpet = (ACPI_TABLE_HPET *)sdp;
 462         printf("\tHPET Number=%d\n", hpet->Sequence);
 463         printf("\tADDR=");
 464         acpi_print_gas(&hpet->Address);
 465         printf("\tHW Rev=0x%x\n", hpet->Id & ACPI_HPET_ID_HARDWARE_REV_ID);
 466         printf("\tComparators=%d\n", (hpet->Id & ACPI_HPET_ID_COMPARATORS) >>
 467             8);
 468         printf("\tCounter Size=%d\n", hpet->Id & ACPI_HPET_ID_COUNT_SIZE_CAP ?
 469             1 : 0);
 470         printf("\tLegacy IRQ routing capable={");
 471         if (hpet->Id & ACPI_HPET_ID_LEGACY_CAPABLE)
 472                 printf("TRUE}\n");
 473         else
 474                 printf("FALSE}\n");
 475         printf("\tPCI Vendor ID=0x%04x\n", hpet->Id >> 16);
 476         printf("\tMinimal Tick=%d\n", hpet->MinimumTick);
 477         printf(END_COMMENT);
 478 }
 479
 480 static void
 481 acpi_handle_ecdt(ACPI_TABLE_HEADER *sdp)
 482 {
 483         ACPI_TABLE_ECDT *ecdt;
 484
 485         printf(BEGIN_COMMENT);
 486         acpi_print_sdt(sdp);
 487         ecdt = (ACPI_TABLE_ECDT *)sdp;
 488         printf("\tEC_CONTROL=");
 489         acpi_print_gas(&ecdt->Control);
 490         printf("\n\tEC_DATA=");
 491         acpi_print_gas(&ecdt->Data);
 492         printf("\n\tUID=%#x, ", ecdt->Uid);
 493         printf("GPE_BIT=%#x\n", ecdt->Gpe);
 494         printf("\tEC_ID=%s\n", ecdt->Id);
 495         printf(END_COMMENT);
 496 }
 497
 498 static void
 499 acpi_handle_mcfg(ACPI_TABLE_HEADER *sdp)
 500 {
 501         ACPI_TABLE_MCFG *mcfg;
 502         ACPI_MCFG_ALLOCATION *alloc;
 503         u_int i, entries;
 504
 505         printf(BEGIN_COMMENT);
 506         acpi_print_sdt(sdp);
 507         mcfg = (ACPI_TABLE_MCFG *)sdp;
 508         entries = (sdp->Length - sizeof(ACPI_TABLE_MCFG)) /
 509             sizeof(ACPI_MCFG_ALLOCATION);
 510         alloc = (ACPI_MCFG_ALLOCATION *)(mcfg + 1);
 511         for (i = 0; i < entries; i++, alloc++) {
 512                 printf("\n");
 513                 printf("\tBase Address=0x%016jx\n", alloc->Address);
 514                 printf("\tSegment Group=0x%04x\n", alloc->PciSegment);
 515                 printf("\tStart Bus=%d\n", alloc->StartBusNumber);
 516                 printf("\tEnd Bus=%d\n", alloc->EndBusNumber);
 517         }
 518         printf(END_COMMENT);
 519 }
 520
 521 static void
 522 acpi_print_srat_cpu(uint32_t apic_id, uint32_t proximity_domain,
 523     uint32_t flags)
 524 {
 525
 526         printf("\tFlags={");
 527         if (flags & ACPI_SRAT_CPU_ENABLED)
 528                 printf("ENABLED");
 529         else
 530                 printf("DISABLED");
 531         printf("}\n");
 532         printf("\tAPIC ID=%d\n", apic_id);
 533         printf("\tProximity Domain=%d\n", proximity_domain);
 534 }
 535
 536 static char *
 537 acpi_tcpa_evname(struct TCPAevent *event)
 538 {
 539         struct TCPApc_event *pc_event;
 540         char *eventname = NULL;
 541
 542         pc_event = (struct TCPApc_event *)(event + 1);
 543
 544         switch(event->event_type) {
 545         case PREBOOT:
 546         case POST_CODE:
 547         case UNUSED:
 548         case NO_ACTION:
 549         case SEPARATOR:
 550         case SCRTM_CONTENTS:
 551         case SCRTM_VERSION:
 552         case CPU_MICROCODE:
 553         case PLATFORM_CONFIG_FLAGS:
 554         case TABLE_OF_DEVICES:
 555         case COMPACT_HASH:
 556         case IPL:
 557         case IPL_PARTITION_DATA:
 558         case NONHOST_CODE:
 559         case NONHOST_CONFIG:
 560         case NONHOST_INFO:
 561                 asprintf(&eventname, "%s",
 562                     tcpa_event_type_strings[event->event_type]);
 563                 break;
 564
 565         case ACTION:
 566                 eventname = calloc(event->event_size + 1, sizeof(char));
 567                 memcpy(eventname, pc_event, event->event_size);
 568                 break;
 569
 570         case EVENT_TAG:
 571                 switch (pc_event->event_id) {
 572                 case SMBIOS:
 573                 case BIS_CERT:
 574                 case CMOS:
 575                 case NVRAM:
 576                 case OPTION_ROM_EXEC:
 577                 case OPTION_ROM_CONFIG:
 578                 case S_CRTM_VERSION:
 579                 case POST_BIOS_ROM:
 580                 case ESCD:
 581                 case OPTION_ROM_MICROCODE:
 582                 case S_CRTM_CONTENTS:
 583                 case POST_CONTENTS:
 584                         asprintf(&eventname, "%s",
 585                             TCPA_pcclient_strings[pc_event->event_id]);
 586                         break;
 587
 588                 default:
 589                         asprintf(&eventname, "<unknown tag 0x%02x>",
 590                             pc_event->event_id);
 591                         break;
 592                 }
 593                 break;
 594
 595         default:
 596                 asprintf(&eventname, "<unknown 0x%02x>", event->event_type);
 597                 break;
 598         }
 599
 600         return eventname;
 601 }
 602
 603 static void
 604 acpi_print_tcpa(struct TCPAevent *event)
 605 {
 606         int i;
 607         char *eventname;
 608
 609         eventname = acpi_tcpa_evname(event);
 610
 611         printf("\t%d", event->pcr_index);
 612         printf(" 0x");
 613         for (i = 0; i < 20; i++)
 614                 printf("%02x", event->pcr_value[i]);
 615         printf(" [%s]\n", eventname ? eventname : "<unknown>");
 616
 617         free(eventname);
 618 }
 619
 620 static void
 621 acpi_handle_tcpa(ACPI_TABLE_HEADER *sdp)
 622 {
 623         struct TCPAbody *tcpa;
 624         struct TCPAevent *event;
 625         uintmax_t len, paddr;
 626         unsigned char *vaddr = NULL;
 627         unsigned char *vend = NULL;
 628
 629         printf(BEGIN_COMMENT);
 630         acpi_print_sdt(sdp);
 631         tcpa = (struct TCPAbody *) sdp;
 632
 633         switch (tcpa->platform_class) {
 634         case ACPI_TCPA_BIOS_CLIENT:
 635                 len = tcpa->client.log_max_len;
 636                 paddr = tcpa->client.log_start_addr;
 637                 break;
 638
 639         case ACPI_TCPA_BIOS_SERVER:
 640                 len = tcpa->server.log_max_len;
 641                 paddr = tcpa->server.log_start_addr;
 642                 break;
 643
 644         default:
 645                 printf("XXX");
 646                 printf(END_COMMENT);
 647                 return;
 648         }
 649         printf("\tClass %u Base Address 0x%jx Length %ju\n\n",
 650             tcpa->platform_class, paddr, len);
 651
 652         if (len == 0) {
 653                 printf("\tEmpty TCPA table\n");
 654                 printf(END_COMMENT);
 655                 return;
 656         }
 657
 658         vaddr = (unsigned char *)acpi_map_physical(paddr, len);
 659         vend = vaddr + len;
 660
 661         while (vaddr != NULL) {
 662                 if (vaddr + sizeof(struct TCPAevent) >= vend)
 663                         break;
 664                 event = (struct TCPAevent *)(void *)vaddr;
 665                 if (vaddr + event->event_size >= vend)
 666                         break;
 667                 if (event->event_type == 0 && event->event_size == 0)
 668                         break;
 669 #if 0
 670                 {
 671                 unsigned int i, j, k;
 672
 673                 printf("\n\tsize %d\n\t\t%p ", event->event_size, vaddr);
 674                 for (j = 0, i = 0; i <
 675                     sizeof(struct TCPAevent) + event->event_size; i++) {
 676                         printf("%02x ", vaddr[i]);
 677                         if ((i+1) % 8 == 0) {
 678                                 for (k = 0; k < 8; k++)
 679                                         printf("%c", isprint(vaddr[j+k]) ?
 680                                             vaddr[j+k] : '.');
 681                                 printf("\n\t\t%p ", &vaddr[i + 1]);
 682                                 j = i + 1;
 683                         }
 684                 }
 685                 printf("\n"); }
 686 #endif
 687                 acpi_print_tcpa(event);
 688
 689                 vaddr += sizeof(struct TCPAevent) + event->event_size;
 690         }
 691
 692         printf(END_COMMENT);
 693 }
 694
 695 static void
 696 acpi_print_srat_memory(ACPI_SRAT_MEM_AFFINITY *mp)
 697 {
 698
 699         printf("\tFlags={");
 700         if (mp->Flags & ACPI_SRAT_MEM_ENABLED)
 701                 printf("ENABLED");
 702         else
 703                 printf("DISABLED");
 704         if (mp->Flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)
 705                 printf(",HOT_PLUGGABLE");
 706         if (mp->Flags & ACPI_SRAT_MEM_NON_VOLATILE)
 707                 printf(",NON_VOLATILE");
 708         printf("}\n");
 709         printf("\tBase Address=0x%016jx\n", (uintmax_t)mp->BaseAddress);
 710         printf("\tLength=0x%016jx\n", (uintmax_t)mp->Length);
 711         printf("\tProximity Domain=%d\n", mp->ProximityDomain);
 712 }
 713
 714 const char *srat_types[] = { "CPU", "Memory", "X2APIC" };
 715
 716 static void
 717 acpi_print_srat(ACPI_SUBTABLE_HEADER *srat)
 718 {
 719         ACPI_SRAT_CPU_AFFINITY *cpu;
 720         ACPI_SRAT_X2APIC_CPU_AFFINITY *x2apic;
 721
 722         if (srat->Type < sizeof(srat_types) / sizeof(srat_types[0]))
 723                 printf("\tType=%s\n", srat_types[srat->Type]);
 724         else
 725                 printf("\tType=%d (unknown)\n", srat->Type);
 726         switch (srat->Type) {
 727         case ACPI_SRAT_TYPE_CPU_AFFINITY:
 728                 cpu = (ACPI_SRAT_CPU_AFFINITY *)srat;
 729                 acpi_print_srat_cpu(cpu->ApicId,
 730                     cpu->ProximityDomainHi[2] << 24 |
 731                     cpu->ProximityDomainHi[1] << 16 |
 732                     cpu->ProximityDomainHi[0] << 0 |
 733                     cpu->ProximityDomainLo, cpu->Flags);
 734                 break;
 735         case ACPI_SRAT_TYPE_MEMORY_AFFINITY:
 736                 acpi_print_srat_memory((ACPI_SRAT_MEM_AFFINITY *)srat);
 737                 break;
 738         case ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY:
 739                 x2apic = (ACPI_SRAT_X2APIC_CPU_AFFINITY *)srat;
 740                 acpi_print_srat_cpu(x2apic->ApicId, x2apic->ProximityDomain,
 741                     x2apic->Flags);
 742                 break;
 743         }
 744 }
 745
 746 static void
 747 acpi_handle_srat(ACPI_TABLE_HEADER *sdp)
 748 {
 749         ACPI_TABLE_SRAT *srat;
 750
 751         printf(BEGIN_COMMENT);
 752         acpi_print_sdt(sdp);
 753         srat = (ACPI_TABLE_SRAT *)sdp;
 754         printf("\tTable Revision=%d\n", srat->TableRevision);
 755         acpi_walk_subtables(sdp, (srat + 1), acpi_print_srat);
 756         printf(END_COMMENT);
 757 }
 758
 759 static void
 760 acpi_print_sdt(ACPI_TABLE_HEADER *sdp)
 761 {
 762         printf("  ");
 763         acpi_print_string(sdp->Signature, ACPI_NAME_SIZE);
 764         printf(": Length=%d, Revision=%d, Checksum=%d,\n",
 765                sdp->Length, sdp->Revision, sdp->Checksum);
 766         printf("\tOEMID=");
 767         acpi_print_string(sdp->OemId, ACPI_OEM_ID_SIZE);
 768         printf(", OEM Table ID=");
 769         acpi_print_string(sdp->OemTableId, ACPI_OEM_TABLE_ID_SIZE);
 770         printf(", OEM Revision=0x%x,\n", sdp->OemRevision);
 771         printf("\tCreator ID=");
 772         acpi_print_string(sdp->AslCompilerId, ACPI_NAME_SIZE);
 773         printf(", Creator Revision=0x%x\n", sdp->AslCompilerRevision);
 774 }
 775
 776 static void
 777 acpi_print_rsdt(ACPI_TABLE_HEADER *rsdp)
 778 {
 779         ACPI_TABLE_RSDT *rsdt;
 780         ACPI_TABLE_XSDT *xsdt;
 781         int     i, entries;
 782         u_long  addr;
 783
 784         rsdt = (ACPI_TABLE_RSDT *)rsdp;
 785         xsdt = (ACPI_TABLE_XSDT *)rsdp;
 786         printf(BEGIN_COMMENT);
 787         acpi_print_sdt(rsdp);
 788         entries = (rsdp->Length - sizeof(ACPI_TABLE_HEADER)) / addr_size;
 789         printf("\tEntries={ ");
 790         for (i = 0; i < entries; i++) {
 791                 if (i > 0)
 792                         printf(", ");
 793                 switch (addr_size) {
 794                 case 4:
 795                         addr = le32toh(rsdt->TableOffsetEntry[i]);
 796                         break;
 797                 case 8:
 798                         addr = le64toh(xsdt->TableOffsetEntry[i]);
 799                         break;
 800                 default:
 801                         addr = 0;
 802                 }
 803                 assert(addr != 0);
 804                 printf("0x%08lx", addr);
 805         }
 806         printf(" }\n");
 807         printf(END_COMMENT);
 808 }
 809
 810 static const char *acpi_pm_profiles[] = {
 811         "Unspecified", "Desktop", "Mobile", "Workstation",
 812         "Enterprise Server", "SOHO Server", "Appliance PC"
 813 };
 814
 815 static void
 816 acpi_print_fadt(ACPI_TABLE_HEADER *sdp)
 817 {
 818         ACPI_TABLE_FADT *fadt;
 819         const char *pm;
 820         char        sep;
 821
 822         fadt = (ACPI_TABLE_FADT *)sdp;
 823         printf(BEGIN_COMMENT);
 824         acpi_print_sdt(sdp);
 825         printf(" \tFACS=0x%x, DSDT=0x%x\n", fadt->Facs,
 826                fadt->Dsdt);
 827         printf("\tINT_MODEL=%s\n", fadt->Model ? "APIC" : "PIC");
 828         if (fadt->PreferredProfile >= sizeof(acpi_pm_profiles) / sizeof(char *))
 829                 pm = "Reserved";
 830         else
 831                 pm = acpi_pm_profiles[fadt->PreferredProfile];
 832         printf("\tPreferred_PM_Profile=%s (%d)\n", pm, fadt->PreferredProfile);
 833         printf("\tSCI_INT=%d\n", fadt->SciInterrupt);
 834         printf("\tSMI_CMD=0x%x, ", fadt->SmiCommand);
 835         printf("ACPI_ENABLE=0x%x, ", fadt->AcpiEnable);
 836         printf("ACPI_DISABLE=0x%x, ", fadt->AcpiDisable);
 837         printf("S4BIOS_REQ=0x%x\n", fadt->S4BiosRequest);
 838         printf("\tPSTATE_CNT=0x%x\n", fadt->PstateControl);
 839         printf("\tPM1a_EVT_BLK=0x%x-0x%x\n",
 840                fadt->Pm1aEventBlock,
 841                fadt->Pm1aEventBlock + fadt->Pm1EventLength - 1);
 842         if (fadt->Pm1bEventBlock != 0)
 843                 printf("\tPM1b_EVT_BLK=0x%x-0x%x\n",
 844                        fadt->Pm1bEventBlock,
 845                        fadt->Pm1bEventBlock + fadt->Pm1EventLength - 1);
 846         printf("\tPM1a_CNT_BLK=0x%x-0x%x\n",
 847                fadt->Pm1aControlBlock,
 848                fadt->Pm1aControlBlock + fadt->Pm1ControlLength - 1);
 849         if (fadt->Pm1bControlBlock != 0)
 850                 printf("\tPM1b_CNT_BLK=0x%x-0x%x\n",
 851                        fadt->Pm1bControlBlock,
 852                        fadt->Pm1bControlBlock + fadt->Pm1ControlLength - 1);
 853         if (fadt->Pm2ControlBlock != 0)
 854                 printf("\tPM2_CNT_BLK=0x%x-0x%x\n",
 855                        fadt->Pm2ControlBlock,
 856                        fadt->Pm2ControlBlock + fadt->Pm2ControlLength - 1);
 857         printf("\tPM_TMR_BLK=0x%x-0x%x\n",
 858                fadt->PmTimerBlock,
 859                fadt->PmTimerBlock + fadt->PmTimerLength - 1);
 860         if (fadt->Gpe0Block != 0)
 861                 printf("\tGPE0_BLK=0x%x-0x%x\n",
 862                        fadt->Gpe0Block,
 863                        fadt->Gpe0Block + fadt->Gpe0BlockLength - 1);
 864         if (fadt->Gpe1Block != 0)
 865                 printf("\tGPE1_BLK=0x%x-0x%x, GPE1_BASE=%d\n",
 866                        fadt->Gpe1Block,
 867                        fadt->Gpe1Block + fadt->Gpe1BlockLength - 1,
 868                        fadt->Gpe1Base);
 869         if (fadt->CstControl != 0)
 870                 printf("\tCST_CNT=0x%x\n", fadt->CstControl);
 871         printf("\tP_LVL2_LAT=%d us, P_LVL3_LAT=%d us\n",
 872                fadt->C2Latency, fadt->C3Latency);
 873         printf("\tFLUSH_SIZE=%d, FLUSH_STRIDE=%d\n",
 874                fadt->FlushSize, fadt->FlushStride);
 875         printf("\tDUTY_OFFSET=%d, DUTY_WIDTH=%d\n",
 876                fadt->DutyOffset, fadt->DutyWidth);
 877         printf("\tDAY_ALRM=%d, MON_ALRM=%d, CENTURY=%d\n",
 878                fadt->DayAlarm, fadt->MonthAlarm, fadt->Century);
 879
 880 #define PRINTFLAG(var, flag) do {                       \
 881         if ((var) & ACPI_FADT_## flag) {                \
 882                 printf("%c%s", sep, #flag); sep = ',';  \
 883         }                                               \
 884 } while (0)
 885
 886         printf("\tIAPC_BOOT_ARCH=");
 887         sep = '{';
 888         PRINTFLAG(fadt->BootFlags, LEGACY_DEVICES);
 889         PRINTFLAG(fadt->BootFlags, 8042);
 890         PRINTFLAG(fadt->BootFlags, NO_VGA);
 891         PRINTFLAG(fadt->BootFlags, NO_MSI);
 892         PRINTFLAG(fadt->BootFlags, NO_ASPM);
 893         if (fadt->BootFlags != 0)
 894                 printf("}");
 895         printf("\n");
 896
 897         printf("\tFlags=");
 898         sep = '{';
 899         PRINTFLAG(fadt->Flags, WBINVD);
 900         PRINTFLAG(fadt->Flags, WBINVD_FLUSH);
 901         PRINTFLAG(fadt->Flags, C1_SUPPORTED);
 902         PRINTFLAG(fadt->Flags, C2_MP_SUPPORTED);
 903         PRINTFLAG(fadt->Flags, POWER_BUTTON);
 904         PRINTFLAG(fadt->Flags, SLEEP_BUTTON);
 905         PRINTFLAG(fadt->Flags, FIXED_RTC);
 906         PRINTFLAG(fadt->Flags, S4_RTC_WAKE);
 907         PRINTFLAG(fadt->Flags, 32BIT_TIMER);
 908         PRINTFLAG(fadt->Flags, DOCKING_SUPPORTED);
 909         PRINTFLAG(fadt->Flags, RESET_REGISTER);
 910         PRINTFLAG(fadt->Flags, SEALED_CASE);
 911         PRINTFLAG(fadt->Flags, HEADLESS);
 912         PRINTFLAG(fadt->Flags, SLEEP_TYPE);
 913         PRINTFLAG(fadt->Flags, PCI_EXPRESS_WAKE);
 914         PRINTFLAG(fadt->Flags, PLATFORM_CLOCK);
 915         PRINTFLAG(fadt->Flags, S4_RTC_VALID);
 916         PRINTFLAG(fadt->Flags, REMOTE_POWER_ON);
 917         PRINTFLAG(fadt->Flags, APIC_CLUSTER);
 918         PRINTFLAG(fadt->Flags, APIC_PHYSICAL);
 919         if (fadt->Flags != 0)
 920                 printf("}\n");
 921
 922 #undef PRINTFLAG
 923
 924         if (fadt->Flags & ACPI_FADT_RESET_REGISTER) {
 925                 printf("\tRESET_REG=");
 926                 acpi_print_gas(&fadt->ResetRegister);
 927                 printf(", RESET_VALUE=%#x\n", fadt->ResetValue);
 928         }
 929         if (acpi_get_fadt_revision(fadt) > 1) {
 930                 printf("\tX_FACS=0x%08lx, ", (u_long)fadt->XFacs);
 931                 printf("X_DSDT=0x%08lx\n", (u_long)fadt->XDsdt);
 932                 printf("\tX_PM1a_EVT_BLK=");
 933                 acpi_print_gas(&fadt->XPm1aEventBlock);
 934                 if (fadt->XPm1bEventBlock.Address != 0) {
 935                         printf("\n\tX_PM1b_EVT_BLK=");
 936                         acpi_print_gas(&fadt->XPm1bEventBlock);
 937                 }
 938                 printf("\n\tX_PM1a_CNT_BLK=");
 939                 acpi_print_gas(&fadt->XPm1aControlBlock);
 940                 if (fadt->XPm1bControlBlock.Address != 0) {
 941                         printf("\n\tX_PM1b_CNT_BLK=");
 942                         acpi_print_gas(&fadt->XPm1bControlBlock);
 943                 }
 944                 if (fadt->XPm2ControlBlock.Address != 0) {
 945                         printf("\n\tX_PM2_CNT_BLK=");
 946                         acpi_print_gas(&fadt->XPm2ControlBlock);
 947                 }
 948                 printf("\n\tX_PM_TMR_BLK=");
 949                 acpi_print_gas(&fadt->XPmTimerBlock);
 950                 if (fadt->XGpe0Block.Address != 0) {
 951                         printf("\n\tX_GPE0_BLK=");
 952                         acpi_print_gas(&fadt->XGpe0Block);
 953                 }
 954                 if (fadt->XGpe1Block.Address != 0) {
 955                         printf("\n\tX_GPE1_BLK=");
 956                         acpi_print_gas(&fadt->XGpe1Block);
 957                 }
 958                 printf("\n");
 959         }
 960
 961         printf(END_COMMENT);
 962 }
 963
 964 static void
 965 acpi_print_facs(ACPI_TABLE_FACS *facs)
 966 {
 967         printf(BEGIN_COMMENT);
 968         printf("  FACS:\tLength=%u, ", facs->Length);
 969         printf("HwSig=0x%08x, ", facs->HardwareSignature);
 970         printf("Firm_Wake_Vec=0x%08x\n", facs->FirmwareWakingVector);
 971
 972         printf("\tGlobal_Lock=");
 973         if (facs->GlobalLock != 0) {
 974                 if (facs->GlobalLock & ACPI_GLOCK_PENDING)
 975                         printf("PENDING,");
 976                 if (facs->GlobalLock & ACPI_GLOCK_OWNED)
 977                         printf("OWNED");
 978         }
 979         printf("\n");
 980
 981         printf("\tFlags=");
 982         if (facs->Flags & ACPI_FACS_S4_BIOS_PRESENT)
 983                 printf("S4BIOS");
 984         printf("\n");
 985
 986         if (facs->XFirmwareWakingVector != 0) {
 987                 printf("\tX_Firm_Wake_Vec=%08lx\n",
 988                        (u_long)facs->XFirmwareWakingVector);
 989         }
 990         printf("\tVersion=%u\n", facs->Version);
 991
 992         printf(END_COMMENT);
 993 }
 994
 995 static void
 996 acpi_print_dsdt(ACPI_TABLE_HEADER *dsdp)
 997 {
 998         printf(BEGIN_COMMENT);
 999         acpi_print_sdt(dsdp);
1000         printf(END_COMMENT);
1001 }
1002
1003 int
1004 acpi_checksum(void *p, size_t length)
1005 {
1006         uint8_t *bp;
1007         uint8_t sum;
1008
1009         bp = p;
1010         sum = 0;
1011         while (length--)
1012                 sum += *bp++;
1013
1014         return (sum);
1015 }
1016
1017 static ACPI_TABLE_HEADER *
1018 acpi_map_sdt(vm_offset_t pa)
1019 {
1020         ACPI_TABLE_HEADER *sp;
1021
1022         sp = acpi_map_physical(pa, sizeof(ACPI_TABLE_HEADER));
1023         sp = acpi_map_physical(pa, sp->Length);
1024         return (sp);
1025 }
1026
1027 static void
1028 acpi_print_rsd_ptr(ACPI_TABLE_RSDP *rp)
1029 {
1030         printf(BEGIN_COMMENT);
1031         printf("  RSD PTR: OEM=");
1032         acpi_print_string(rp->OemId, ACPI_OEM_ID_SIZE);
1033         printf(", ACPI_Rev=%s (%d)\n", rp->Revision < 2 ? "1.0x" : "2.0x",
1034                rp->Revision);
1035         if (rp->Revision < 2) {
1036                 printf("\tRSDT=0x%08x, cksum=%u\n", rp->RsdtPhysicalAddress,
1037                     rp->Checksum);
1038         } else {
1039                 printf("\tXSDT=0x%08lx, length=%u, cksum=%u\n",
1040                     (u_long)rp->XsdtPhysicalAddress, rp->Length,
1041                     rp->ExtendedChecksum);
1042         }
1043         printf(END_COMMENT);
1044 }
1045
1046 static void
1047 acpi_handle_rsdt(ACPI_TABLE_HEADER *rsdp)
1048 {
1049         ACPI_TABLE_HEADER *sdp;
1050         ACPI_TABLE_RSDT *rsdt;
1051         ACPI_TABLE_XSDT *xsdt;
1052         vm_offset_t addr;
1053         int entries, i;
1054
1055         acpi_print_rsdt(rsdp);
1056         rsdt = (ACPI_TABLE_RSDT *)rsdp;
1057         xsdt = (ACPI_TABLE_XSDT *)rsdp;
1058         entries = (rsdp->Length - sizeof(ACPI_TABLE_HEADER)) / addr_size;
1059         for (i = 0; i < entries; i++) {
1060                 switch (addr_size) {
1061                 case 4:
1062                         addr = le32toh(rsdt->TableOffsetEntry[i]);
1063                         break;
1064                 case 8:
1065                         addr = le64toh(xsdt->TableOffsetEntry[i]);
1066                         break;
1067                 default:
1068                         assert((addr = 0));
1069                 }
1070
1071                 sdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(addr);
1072                 if (acpi_checksum(sdp, sdp->Length)) {
1073                         warnx("RSDT entry %d (sig %.4s) is corrupt", i,
1074                             sdp->Signature);
1075                         continue;
1076                 }
1077                 if (!memcmp(sdp->Signature, ACPI_SIG_FADT, 4))
1078                         acpi_handle_fadt(sdp);
1079                 else if (!memcmp(sdp->Signature, ACPI_SIG_MADT, 4))
1080                         acpi_handle_madt(sdp);
1081                 else if (!memcmp(sdp->Signature, ACPI_SIG_HPET, 4))
1082                         acpi_handle_hpet(sdp);
1083                 else if (!memcmp(sdp->Signature, ACPI_SIG_ECDT, 4))
1084                         acpi_handle_ecdt(sdp);
1085                 else if (!memcmp(sdp->Signature, ACPI_SIG_MCFG, 4))
1086                         acpi_handle_mcfg(sdp);
1087                 else if (!memcmp(sdp->Signature, ACPI_SIG_SRAT, 4))
1088                         acpi_handle_srat(sdp);
1089                 else if (!memcmp(sdp->Signature, ACPI_SIG_TCPA, 4))
1090                         acpi_handle_tcpa(sdp);
1091                 else {
1092                         printf(BEGIN_COMMENT);
1093                         acpi_print_sdt(sdp);
1094                         printf(END_COMMENT);
1095                 }
1096         }
1097 }
1098
1099 ACPI_TABLE_HEADER *
1100 sdt_load_devmem(void)
1101 {
1102         ACPI_TABLE_RSDP *rp;
1103         ACPI_TABLE_HEADER *rsdp;
1104
1105         rp = acpi_find_rsd_ptr();
1106         if (!rp)
1107                 errx(1, "Can't find ACPI information");
1108
1109         if (tflag)
1110                 acpi_print_rsd_ptr(rp);
1111         if (rp->Revision < 2) {
1112                 rsdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(rp->RsdtPhysicalAddress);
1113                 if (memcmp(rsdp->Signature, "RSDT", 4) != 0 ||
1114                     acpi_checksum(rsdp, rsdp->Length) != 0)
1115                         errx(1, "RSDT is corrupted");
1116                 addr_size = sizeof(uint32_t);
1117         } else {
1118                 rsdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(rp->XsdtPhysicalAddress);
1119                 if (memcmp(rsdp->Signature, "XSDT", 4) != 0 ||
1120                     acpi_checksum(rsdp, rsdp->Length) != 0)
1121                         errx(1, "XSDT is corrupted");
1122                 addr_size = sizeof(uint64_t);
1123         }
1124         return (rsdp);
1125 }
1126
1127 /* Write the DSDT to a file, concatenating any SSDTs (if present). */
1128 static int
1129 write_dsdt(int fd, ACPI_TABLE_HEADER *rsdt, ACPI_TABLE_HEADER *dsdt)
1130 {
1131         ACPI_TABLE_HEADER sdt;
1132         ACPI_TABLE_HEADER *ssdt;
1133         uint8_t sum;
1134
1135         /* Create a new checksum to account for the DSDT and any SSDTs. */
1136         sdt = *dsdt;
1137         if (rsdt != NULL) {
1138                 sdt.Checksum = 0;
1139                 sum = acpi_checksum(dsdt + 1, dsdt->Length -
1140                     sizeof(ACPI_TABLE_HEADER));
1141                 ssdt = sdt_from_rsdt(rsdt, ACPI_SIG_SSDT, NULL);
1142                 while (ssdt != NULL) {
1143                         sdt.Length += ssdt->Length - sizeof(ACPI_TABLE_HEADER);
1144                         sum += acpi_checksum(ssdt + 1,
1145                             ssdt->Length - sizeof(ACPI_TABLE_HEADER));
1146                         ssdt = sdt_from_rsdt(rsdt, ACPI_SIG_SSDT, ssdt);
1147                 }
1148                 sum += acpi_checksum(&sdt, sizeof(ACPI_TABLE_HEADER));
1149                 sdt.Checksum -= sum;
1150         }
1151
1152         /* Write out the DSDT header and body. */
1153         write(fd, &sdt, sizeof(ACPI_TABLE_HEADER));
1154         write(fd, dsdt + 1, dsdt->Length - sizeof(ACPI_TABLE_HEADER));
1155
1156         /* Write out any SSDTs (if present.) */
1157         if (rsdt != NULL) {
1158                 ssdt = sdt_from_rsdt(rsdt, "SSDT", NULL);
1159                 while (ssdt != NULL) {
1160                         write(fd, ssdt + 1, ssdt->Length -
1161                             sizeof(ACPI_TABLE_HEADER));
1162                         ssdt = sdt_from_rsdt(rsdt, "SSDT", ssdt);
1163                 }
1164         }
1165         return (0);
1166 }
1167
1168 void
1169 dsdt_save_file(char *outfile, ACPI_TABLE_HEADER *rsdt, ACPI_TABLE_HEADER *dsdp)
1170 {
1171         int     fd;
1172         mode_t  mode;
1173
1174         assert(outfile != NULL);
1175         mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
1176         fd = open(outfile, O_WRONLY | O_CREAT | O_TRUNC, mode);
1177         if (fd == -1) {
1178                 perror("dsdt_save_file");
1179                 return;
1180         }
1181         write_dsdt(fd, rsdt, dsdp);
1182         close(fd);
1183 }
1184
1185 void
1186 aml_disassemble(ACPI_TABLE_HEADER *rsdt, ACPI_TABLE_HEADER *dsdp)
1187 {
1188         char buf[PATH_MAX], tmpstr[PATH_MAX];
1189         const char *tmpdir;
1190         char *tmpext;
1191         FILE *fp;
1192         size_t len;
1193         int fd;
1194
1195         tmpdir = getenv("TMPDIR");
1196         if (tmpdir == NULL)
1197                 tmpdir = _PATH_TMP;
1198         strncpy(tmpstr, tmpdir, sizeof(tmpstr));
1199         strncat(tmpstr, "/acpidump.", sizeof(tmpstr) - strlen(tmpdir));
1200         if (realpath(tmpstr, buf) == NULL) {
1201                 perror("realpath tmp file");
1202                 return;
1203         }
1204         strncpy(tmpstr, buf, sizeof(tmpstr));
1205         len = strlen(buf);
1206         tmpext = tmpstr + len;
1207         strncpy(tmpext, "XXXXXX", sizeof(tmpstr) - len);
1208         fd = mkstemp(tmpstr);
1209         if (fd < 0) {
1210                 perror("iasl tmp file");
1211                 return;
1212         }
1213         write_dsdt(fd, rsdt, dsdp);
1214         close(fd);
1215
1216         /* Run iasl -d on the temp file */
1217         if (fork() == 0) {
1218                 close(STDOUT_FILENO);
1219                 if (vflag == 0)
1220                         close(STDERR_FILENO);
1221                 execl("/usr/sbin/iasl", "iasl", "-d", tmpstr, NULL);
1222                 err(1, "exec");
1223         }
1224
1225         wait(NULL);
1226         unlink(tmpstr);
1227
1228         /* Dump iasl's output to stdout */
1229         strncpy(tmpext, "dsl", sizeof(tmpstr) - len);
1230         fp = fopen(tmpstr, "r");
1231         unlink(tmpstr);
1232         if (fp == NULL) {
1233                 perror("iasl tmp file (read)");
1234                 return;
1235         }
1236         while ((len = fread(buf, 1, sizeof(buf), fp)) > 0)
1237                 fwrite(buf, 1, len, stdout);
1238         fclose(fp);
1239 }
1240
1241 void
1242 sdt_print_all(ACPI_TABLE_HEADER *rsdp)
1243 {
1244         acpi_handle_rsdt(rsdp);
1245 }
1246
1247 /* Fetch a table matching the given signature via the RSDT. */
1248 ACPI_TABLE_HEADER *
1249 sdt_from_rsdt(ACPI_TABLE_HEADER *rsdp, const char *sig, ACPI_TABLE_HEADER *last)
1250 {
1251         ACPI_TABLE_HEADER *sdt;
1252         ACPI_TABLE_RSDT *rsdt;
1253         ACPI_TABLE_XSDT *xsdt;
1254         vm_offset_t addr;
1255         int entries, i;
1256
1257         rsdt = (ACPI_TABLE_RSDT *)rsdp;
1258         xsdt = (ACPI_TABLE_XSDT *)rsdp;
1259         entries = (rsdp->Length - sizeof(ACPI_TABLE_HEADER)) / addr_size;
1260         for (i = 0; i < entries; i++) {
1261                 switch (addr_size) {
1262                 case 4:
1263                         addr = le32toh(rsdt->TableOffsetEntry[i]);
1264                         break;
1265                 case 8:
1266                         addr = le64toh(xsdt->TableOffsetEntry[i]);
1267                         break;
1268                 default:
1269                         assert((addr = 0));
1270                 }
1271                 sdt = (ACPI_TABLE_HEADER *)acpi_map_sdt(addr);
1272                 if (last != NULL) {
1273                         if (sdt == last)
1274                                 last = NULL;
1275                         continue;
1276                 }
1277                 if (memcmp(sdt->Signature, sig, strlen(sig)))
1278                         continue;
1279                 if (acpi_checksum(sdt, sdt->Length))
1280                         errx(1, "RSDT entry %d is corrupt", i);
1281                 return (sdt);
1282         }
1283
1284         return (NULL);
1285 }
1286
1287 ACPI_TABLE_HEADER *
1288 dsdt_from_fadt(ACPI_TABLE_FADT *fadt)
1289 {
1290         ACPI_TABLE_HEADER       *sdt;
1291
1292         /* Use the DSDT address if it is version 1, otherwise use XDSDT. */
1293         if (acpi_get_fadt_revision(fadt) == 1)
1294                 sdt = (ACPI_TABLE_HEADER *)acpi_map_sdt(fadt->Dsdt);
1295         else
1296                 sdt = (ACPI_TABLE_HEADER *)acpi_map_sdt(fadt->XDsdt);
1297         if (acpi_checksum(sdt, sdt->Length))
1298                 errx(1, "DSDT is corrupt\n");
1299         return (sdt);
1300 }