acpi.c revision 196555
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: head/usr.sbin/acpi/acpidump/acpi.c 196555 2009-08-25 20:35:57Z jhb $ 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 49static void acpi_print_string(char *s, size_t length); 50static void acpi_print_gas(ACPI_GENERIC_ADDRESS *gas); 51static int acpi_get_fadt_revision(ACPI_TABLE_FADT *fadt); 52static void acpi_handle_fadt(ACPI_TABLE_HEADER *fadt); 53static void acpi_print_cpu(u_char cpu_id); 54static void acpi_print_cpu_uid(uint32_t uid, char *uid_string); 55static void acpi_print_local_apic(uint32_t apic_id, uint32_t flags); 56static void acpi_print_io_apic(uint32_t apic_id, uint32_t int_base, 57 uint64_t apic_addr); 58static void acpi_print_mps_flags(uint16_t flags); 59static void acpi_print_intr(uint32_t intr, uint16_t mps_flags); 60static void acpi_print_local_nmi(u_int lint, uint16_t mps_flags); 61static void acpi_print_madt(ACPI_SUBTABLE_HEADER *mp); 62static void acpi_handle_madt(ACPI_TABLE_HEADER *sdp); 63static void acpi_handle_ecdt(ACPI_TABLE_HEADER *sdp); 64static void acpi_handle_hpet(ACPI_TABLE_HEADER *sdp); 65static void acpi_handle_mcfg(ACPI_TABLE_HEADER *sdp); 66static void acpi_print_srat_cpu(uint32_t apic_id, uint32_t proximity_domain, 67 uint32_t flags); 68static void acpi_print_srat_memory(ACPI_SRAT_MEM_AFFINITY *mp); 69static void acpi_print_srat(ACPI_SUBTABLE_HEADER *srat); 70static void acpi_handle_srat(ACPI_TABLE_HEADER *sdp); 71static void acpi_print_sdt(ACPI_TABLE_HEADER *sdp); 72static void acpi_print_fadt(ACPI_TABLE_HEADER *sdp); 73static void acpi_print_facs(ACPI_TABLE_FACS *facs); 74static void acpi_print_dsdt(ACPI_TABLE_HEADER *dsdp); 75static ACPI_TABLE_HEADER *acpi_map_sdt(vm_offset_t pa); 76static void acpi_print_rsd_ptr(ACPI_TABLE_RSDP *rp); 77static void acpi_handle_rsdt(ACPI_TABLE_HEADER *rsdp); 78static void acpi_walk_subtables(ACPI_TABLE_HEADER *table, void *first, 79 void (*action)(ACPI_SUBTABLE_HEADER *)); 80 81/* Size of an address. 32-bit for ACPI 1.0, 64-bit for ACPI 2.0 and up. */ 82static int addr_size; 83 84static void 85acpi_print_string(char *s, size_t length) 86{ 87 int c; 88 89 /* Trim trailing spaces and NULLs */ 90 while (length > 0 && (s[length - 1] == ' ' || s[length - 1] == '\0')) 91 length--; 92 93 while (length--) { 94 c = *s++; 95 putchar(c); 96 } 97} 98 99static void 100acpi_print_gas(ACPI_GENERIC_ADDRESS *gas) 101{ 102 switch(gas->SpaceId) { 103 case ACPI_GAS_MEMORY: 104 printf("0x%08lx:%u[%u] (Memory)", (u_long)gas->Address, 105 gas->BitOffset, gas->BitWidth); 106 break; 107 case ACPI_GAS_IO: 108 printf("0x%02lx:%u[%u] (IO)", (u_long)gas->Address, 109 gas->BitOffset, gas->BitWidth); 110 break; 111 case ACPI_GAS_PCI: 112 printf("%x:%x+0x%x (PCI)", (uint16_t)(gas->Address >> 32), 113 (uint16_t)((gas->Address >> 16) & 0xffff), 114 (uint16_t)gas->Address); 115 break; 116 /* XXX How to handle these below? */ 117 case ACPI_GAS_EMBEDDED: 118 printf("0x%x:%u[%u] (EC)", (uint16_t)gas->Address, 119 gas->BitOffset, gas->BitWidth); 120 break; 121 case ACPI_GAS_SMBUS: 122 printf("0x%x:%u[%u] (SMBus)", (uint16_t)gas->Address, 123 gas->BitOffset, gas->BitWidth); 124 break; 125 case ACPI_GAS_CMOS: 126 case ACPI_GAS_PCIBAR: 127 case ACPI_GAS_DATATABLE: 128 case ACPI_GAS_FIXED: 129 default: 130 printf("0x%08lx (?)", (u_long)gas->Address); 131 break; 132 } 133} 134 135/* The FADT revision indicates whether we use the DSDT or X_DSDT addresses. */ 136static int 137acpi_get_fadt_revision(ACPI_TABLE_FADT *fadt) 138{ 139 int fadt_revision; 140 141 /* Set the FADT revision separately from the RSDP version. */ 142 if (addr_size == 8) { 143 fadt_revision = 2; 144 145 /* 146 * A few systems (e.g., IBM T23) have an RSDP that claims 147 * revision 2 but the 64 bit addresses are invalid. If 148 * revision 2 and the 32 bit address is non-zero but the 149 * 32 and 64 bit versions don't match, prefer the 32 bit 150 * version for all subsequent tables. 151 */ 152 if (fadt->Facs != 0 && 153 (fadt->XFacs & 0xffffffff) != fadt->Facs) 154 fadt_revision = 1; 155 } else 156 fadt_revision = 1; 157 return (fadt_revision); 158} 159 160static void 161acpi_handle_fadt(ACPI_TABLE_HEADER *sdp) 162{ 163 ACPI_TABLE_HEADER *dsdp; 164 ACPI_TABLE_FACS *facs; 165 ACPI_TABLE_FADT *fadt; 166 int fadt_revision; 167 168 fadt = (ACPI_TABLE_FADT *)sdp; 169 acpi_print_fadt(sdp); 170 171 fadt_revision = acpi_get_fadt_revision(fadt); 172 if (fadt_revision == 1) 173 facs = (ACPI_TABLE_FACS *)acpi_map_sdt(fadt->Facs); 174 else 175 facs = (ACPI_TABLE_FACS *)acpi_map_sdt(fadt->XFacs); 176 if (memcmp(facs->Signature, ACPI_SIG_FACS, 4) != 0 || facs->Length < 64) 177 errx(1, "FACS is corrupt"); 178 acpi_print_facs(facs); 179 180 if (fadt_revision == 1) 181 dsdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(fadt->Dsdt); 182 else 183 dsdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(fadt->XDsdt); 184 if (acpi_checksum(dsdp, dsdp->Length)) 185 errx(1, "DSDT is corrupt"); 186 acpi_print_dsdt(dsdp); 187} 188 189static void 190acpi_walk_subtables(ACPI_TABLE_HEADER *table, void *first, 191 void (*action)(ACPI_SUBTABLE_HEADER *)) 192{ 193 ACPI_SUBTABLE_HEADER *subtable; 194 char *end; 195 196 subtable = first; 197 end = (char *)table + table->Length; 198 while ((char *)subtable < end) { 199 printf("\n"); 200 action(subtable); 201 subtable = (ACPI_SUBTABLE_HEADER *)((char *)subtable + 202 subtable->Length); 203 } 204} 205 206static void 207acpi_print_cpu(u_char cpu_id) 208{ 209 210 printf("\tACPI CPU="); 211 if (cpu_id == 0xff) 212 printf("ALL\n"); 213 else 214 printf("%d\n", (u_int)cpu_id); 215} 216 217static void 218acpi_print_cpu_uid(uint32_t uid, char *uid_string) 219{ 220 221 printf("\tUID=%d", uid); 222 if (uid_string != NULL) 223 printf(" (%s)", uid_string); 224 printf("\n"); 225} 226 227static void 228acpi_print_local_apic(uint32_t apic_id, uint32_t flags) 229{ 230 231 printf("\tFlags={"); 232 if (flags & ACPI_MADT_ENABLED) 233 printf("ENABLED"); 234 else 235 printf("DISABLED"); 236 printf("}\n"); 237 printf("\tAPIC ID=%d\n", apic_id); 238} 239 240static void 241acpi_print_io_apic(uint32_t apic_id, uint32_t int_base, uint64_t apic_addr) 242{ 243 244 printf("\tAPIC ID=%d\n", apic_id); 245 printf("\tINT BASE=%d\n", int_base); 246 printf("\tADDR=0x%016jx\n", (uintmax_t)apic_addr); 247} 248 249static void 250acpi_print_mps_flags(uint16_t flags) 251{ 252 253 printf("\tFlags={Polarity="); 254 switch (flags & ACPI_MADT_POLARITY_MASK) { 255 case ACPI_MADT_POLARITY_CONFORMS: 256 printf("conforming"); 257 break; 258 case ACPI_MADT_POLARITY_ACTIVE_HIGH: 259 printf("active-hi"); 260 break; 261 case ACPI_MADT_POLARITY_ACTIVE_LOW: 262 printf("active-lo"); 263 break; 264 default: 265 printf("0x%x", flags & ACPI_MADT_POLARITY_MASK); 266 break; 267 } 268 printf(", Trigger="); 269 switch (flags & ACPI_MADT_TRIGGER_MASK) { 270 case ACPI_MADT_TRIGGER_CONFORMS: 271 printf("conforming"); 272 break; 273 case ACPI_MADT_TRIGGER_EDGE: 274 printf("edge"); 275 break; 276 case ACPI_MADT_TRIGGER_LEVEL: 277 printf("level"); 278 break; 279 default: 280 printf("0x%x", (flags & ACPI_MADT_TRIGGER_MASK) >> 2); 281 } 282 printf("}\n"); 283} 284 285static void 286acpi_print_intr(uint32_t intr, uint16_t mps_flags) 287{ 288 289 printf("\tINTR=%d\n", intr); 290 acpi_print_mps_flags(mps_flags); 291} 292 293static void 294acpi_print_local_nmi(u_int lint, uint16_t mps_flags) 295{ 296 297 printf("\tLINT Pin=%d\n", lint); 298 acpi_print_mps_flags(mps_flags); 299} 300 301const char *apic_types[] = { "Local APIC", "IO APIC", "INT Override", "NMI", 302 "Local APIC NMI", "Local APIC Override", 303 "IO SAPIC", "Local SAPIC", "Platform Interrupt", 304 "Local X2APIC", "Local X2APIC NMI" }; 305const char *platform_int_types[] = { "0 (unknown)", "PMI", "INIT", 306 "Corrected Platform Error" }; 307 308static void 309acpi_print_madt(ACPI_SUBTABLE_HEADER *mp) 310{ 311 ACPI_MADT_LOCAL_APIC *lapic; 312 ACPI_MADT_IO_APIC *ioapic; 313 ACPI_MADT_INTERRUPT_OVERRIDE *over; 314 ACPI_MADT_NMI_SOURCE *nmi; 315 ACPI_MADT_LOCAL_APIC_NMI *lapic_nmi; 316 ACPI_MADT_LOCAL_APIC_OVERRIDE *lapic_over; 317 ACPI_MADT_IO_SAPIC *iosapic; 318 ACPI_MADT_LOCAL_SAPIC *lsapic; 319 ACPI_MADT_INTERRUPT_SOURCE *isrc; 320 ACPI_MADT_LOCAL_X2APIC *x2apic; 321 ACPI_MADT_LOCAL_X2APIC_NMI *x2apic_nmi; 322 323 if (mp->Type < sizeof(apic_types) / sizeof(apic_types[0])) 324 printf("\tType=%s\n", apic_types[mp->Type]); 325 else 326 printf("\tType=%d (unknown)\n", mp->Type); 327 switch (mp->Type) { 328 case ACPI_MADT_TYPE_LOCAL_APIC: 329 lapic = (ACPI_MADT_LOCAL_APIC *)mp; 330 acpi_print_cpu(lapic->ProcessorId); 331 acpi_print_local_apic(lapic->Id, lapic->LapicFlags); 332 break; 333 case ACPI_MADT_TYPE_IO_APIC: 334 ioapic = (ACPI_MADT_IO_APIC *)mp; 335 acpi_print_io_apic(ioapic->Id, ioapic->GlobalIrqBase, 336 ioapic->Address); 337 break; 338 case ACPI_MADT_TYPE_INTERRUPT_OVERRIDE: 339 over = (ACPI_MADT_INTERRUPT_OVERRIDE *)mp; 340 printf("\tBUS=%d\n", (u_int)over->Bus); 341 printf("\tIRQ=%d\n", (u_int)over->SourceIrq); 342 acpi_print_intr(over->GlobalIrq, over->IntiFlags); 343 break; 344 case ACPI_MADT_TYPE_NMI_SOURCE: 345 nmi = (ACPI_MADT_NMI_SOURCE *)mp; 346 acpi_print_intr(nmi->GlobalIrq, nmi->IntiFlags); 347 break; 348 case ACPI_MADT_TYPE_LOCAL_APIC_NMI: 349 lapic_nmi = (ACPI_MADT_LOCAL_APIC_NMI *)mp; 350 acpi_print_cpu(lapic_nmi->ProcessorId); 351 acpi_print_local_nmi(lapic_nmi->Lint, lapic_nmi->IntiFlags); 352 break; 353 case ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE: 354 lapic_over = (ACPI_MADT_LOCAL_APIC_OVERRIDE *)mp; 355 printf("\tLocal APIC ADDR=0x%016jx\n", 356 (uintmax_t)lapic_over->Address); 357 break; 358 case ACPI_MADT_TYPE_IO_SAPIC: 359 iosapic = (ACPI_MADT_IO_SAPIC *)mp; 360 acpi_print_io_apic(iosapic->Id, iosapic->GlobalIrqBase, 361 iosapic->Address); 362 break; 363 case ACPI_MADT_TYPE_LOCAL_SAPIC: 364 lsapic = (ACPI_MADT_LOCAL_SAPIC *)mp; 365 acpi_print_cpu(lsapic->ProcessorId); 366 acpi_print_local_apic(lsapic->Id, lsapic->LapicFlags); 367 printf("\tAPIC EID=%d\n", (u_int)lsapic->Eid); 368 if (mp->Length > __offsetof(ACPI_MADT_LOCAL_SAPIC, Uid)) 369 acpi_print_cpu_uid(lsapic->Uid, lsapic->UidString); 370 break; 371 case ACPI_MADT_TYPE_INTERRUPT_SOURCE: 372 isrc = (ACPI_MADT_INTERRUPT_SOURCE *)mp; 373 if (isrc->Type < sizeof(platform_int_types) / 374 sizeof(platform_int_types[0])) 375 printf("\tType=%s\n", platform_int_types[isrc->Type]); 376 else 377 printf("\tType=%d (unknown)\n", isrc->Type); 378 printf("\tAPIC ID=%d\n", (u_int)isrc->Id); 379 printf("\tAPIC EID=%d\n", (u_int)isrc->Eid); 380 printf("\tSAPIC Vector=%d\n", (u_int)isrc->IoSapicVector); 381 acpi_print_intr(isrc->GlobalIrq, isrc->IntiFlags); 382 break; 383 case ACPI_MADT_TYPE_LOCAL_X2APIC: 384 x2apic = (ACPI_MADT_LOCAL_X2APIC *)mp; 385 acpi_print_cpu_uid(x2apic->Uid, NULL); 386 acpi_print_local_apic(x2apic->LocalApicId, x2apic->LapicFlags); 387 break; 388 case ACPI_MADT_TYPE_LOCAL_X2APIC_NMI: 389 x2apic_nmi = (ACPI_MADT_LOCAL_X2APIC_NMI *)mp; 390 acpi_print_cpu_uid(x2apic_nmi->Uid, NULL); 391 acpi_print_local_nmi(x2apic_nmi->Lint, x2apic_nmi->IntiFlags); 392 break; 393 } 394} 395 396static void 397acpi_handle_madt(ACPI_TABLE_HEADER *sdp) 398{ 399 ACPI_TABLE_MADT *madt; 400 401 printf(BEGIN_COMMENT); 402 acpi_print_sdt(sdp); 403 madt = (ACPI_TABLE_MADT *)sdp; 404 printf("\tLocal APIC ADDR=0x%08x\n", madt->Address); 405 printf("\tFlags={"); 406 if (madt->Flags & ACPI_MADT_PCAT_COMPAT) 407 printf("PC-AT"); 408 printf("}\n"); 409 acpi_walk_subtables(sdp, (madt + 1), acpi_print_madt); 410 printf(END_COMMENT); 411} 412 413static void 414acpi_handle_hpet(ACPI_TABLE_HEADER *sdp) 415{ 416 ACPI_TABLE_HPET *hpet; 417 418 printf(BEGIN_COMMENT); 419 acpi_print_sdt(sdp); 420 hpet = (ACPI_TABLE_HPET *)sdp; 421 printf("\tHPET Number=%d\n", hpet->Sequence); 422 printf("\tADDR="); 423 acpi_print_gas(&hpet->Address); 424 printf("\tHW Rev=0x%x\n", hpet->Id & ACPI_HPET_ID_HARDWARE_REV_ID); 425 printf("\tComparators=%d\n", (hpet->Id & ACPI_HPET_ID_COMPARATORS) >> 426 8); 427 printf("\tCounter Size=%d\n", hpet->Id & ACPI_HPET_ID_COUNT_SIZE_CAP ? 428 1 : 0); 429 printf("\tLegacy IRQ routing capable={"); 430 if (hpet->Id & ACPI_HPET_ID_LEGACY_CAPABLE) 431 printf("TRUE}\n"); 432 else 433 printf("FALSE}\n"); 434 printf("\tPCI Vendor ID=0x%04x\n", hpet->Id >> 16); 435 printf("\tMinimal Tick=%d\n", hpet->MinimumTick); 436 printf(END_COMMENT); 437} 438 439static void 440acpi_handle_ecdt(ACPI_TABLE_HEADER *sdp) 441{ 442 ACPI_TABLE_ECDT *ecdt; 443 444 printf(BEGIN_COMMENT); 445 acpi_print_sdt(sdp); 446 ecdt = (ACPI_TABLE_ECDT *)sdp; 447 printf("\tEC_CONTROL="); 448 acpi_print_gas(&ecdt->Control); 449 printf("\n\tEC_DATA="); 450 acpi_print_gas(&ecdt->Data); 451 printf("\n\tUID=%#x, ", ecdt->Uid); 452 printf("GPE_BIT=%#x\n", ecdt->Gpe); 453 printf("\tEC_ID=%s\n", ecdt->Id); 454 printf(END_COMMENT); 455} 456 457static void 458acpi_handle_mcfg(ACPI_TABLE_HEADER *sdp) 459{ 460 ACPI_TABLE_MCFG *mcfg; 461 ACPI_MCFG_ALLOCATION *alloc; 462 u_int i, entries; 463 464 printf(BEGIN_COMMENT); 465 acpi_print_sdt(sdp); 466 mcfg = (ACPI_TABLE_MCFG *)sdp; 467 entries = (sdp->Length - sizeof(ACPI_TABLE_MCFG)) / 468 sizeof(ACPI_MCFG_ALLOCATION); 469 alloc = (ACPI_MCFG_ALLOCATION *)(mcfg + 1); 470 for (i = 0; i < entries; i++, alloc++) { 471 printf("\n"); 472 printf("\tBase Address=0x%016jx\n", alloc->Address); 473 printf("\tSegment Group=0x%04x\n", alloc->PciSegment); 474 printf("\tStart Bus=%d\n", alloc->StartBusNumber); 475 printf("\tEnd Bus=%d\n", alloc->EndBusNumber); 476 } 477 printf(END_COMMENT); 478} 479 480static void 481acpi_print_srat_cpu(uint32_t apic_id, uint32_t proximity_domain, 482 uint32_t flags) 483{ 484 485 printf("\tFlags={"); 486 if (flags & ACPI_SRAT_CPU_ENABLED) 487 printf("ENABLED"); 488 else 489 printf("DISABLED"); 490 printf("}\n"); 491 printf("\tAPIC ID=%d\n", apic_id); 492 printf("\tProximity Domain=%d\n", proximity_domain); 493} 494 495static void 496acpi_print_srat_memory(ACPI_SRAT_MEM_AFFINITY *mp) 497{ 498 499 printf("\tFlags={"); 500 if (mp->Flags & ACPI_SRAT_MEM_ENABLED) 501 printf("ENABLED"); 502 else 503 printf("DISABLED"); 504 if (mp->Flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) 505 printf(",HOT_PLUGGABLE"); 506 if (mp->Flags & ACPI_SRAT_MEM_NON_VOLATILE) 507 printf(",NON_VOLATILE"); 508 printf("}\n"); 509 printf("\tBase Address=0x%016jx\n", (uintmax_t)mp->BaseAddress); 510 printf("\tLength=0x%016jx\n", (uintmax_t)mp->Length); 511 printf("\tProximity Domain=%d\n", mp->ProximityDomain); 512} 513 514const char *srat_types[] = { "CPU", "Memory", "X2APIC" }; 515 516static void 517acpi_print_srat(ACPI_SUBTABLE_HEADER *srat) 518{ 519 ACPI_SRAT_CPU_AFFINITY *cpu; 520 ACPI_SRAT_X2APIC_CPU_AFFINITY *x2apic; 521 522 if (srat->Type < sizeof(srat_types) / sizeof(srat_types[0])) 523 printf("\tType=%s\n", srat_types[srat->Type]); 524 else 525 printf("\tType=%d (unknown)\n", srat->Type); 526 switch (srat->Type) { 527 case ACPI_SRAT_TYPE_CPU_AFFINITY: 528 cpu = (ACPI_SRAT_CPU_AFFINITY *)srat; 529 acpi_print_srat_cpu(cpu->ApicId, 530 cpu->ProximityDomainHi[2] << 24 | 531 cpu->ProximityDomainHi[1] << 16 | 532 cpu->ProximityDomainHi[0] << 0 | 533 cpu->ProximityDomainLo, cpu->Flags); 534 break; 535 case ACPI_SRAT_TYPE_MEMORY_AFFINITY: 536 acpi_print_srat_memory((ACPI_SRAT_MEM_AFFINITY *)srat); 537 break; 538 case ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY: 539 x2apic = (ACPI_SRAT_X2APIC_CPU_AFFINITY *)srat; 540 acpi_print_srat_cpu(x2apic->ApicId, x2apic->ProximityDomain, 541 x2apic->Flags); 542 break; 543 } 544} 545 546static void 547acpi_handle_srat(ACPI_TABLE_HEADER *sdp) 548{ 549 ACPI_TABLE_SRAT *srat; 550 551 printf(BEGIN_COMMENT); 552 acpi_print_sdt(sdp); 553 srat = (ACPI_TABLE_SRAT *)sdp; 554 printf("\tTable Revision=%d\n", srat->TableRevision); 555 acpi_walk_subtables(sdp, (srat + 1), acpi_print_srat); 556 printf(END_COMMENT); 557} 558 559static void 560acpi_print_sdt(ACPI_TABLE_HEADER *sdp) 561{ 562 printf(" "); 563 acpi_print_string(sdp->Signature, ACPI_NAME_SIZE); 564 printf(": Length=%d, Revision=%d, Checksum=%d,\n", 565 sdp->Length, sdp->Revision, sdp->Checksum); 566 printf("\tOEMID="); 567 acpi_print_string(sdp->OemId, ACPI_OEM_ID_SIZE); 568 printf(", OEM Table ID="); 569 acpi_print_string(sdp->OemTableId, ACPI_OEM_TABLE_ID_SIZE); 570 printf(", OEM Revision=0x%x,\n", sdp->OemRevision); 571 printf("\tCreator ID="); 572 acpi_print_string(sdp->AslCompilerId, ACPI_NAME_SIZE); 573 printf(", Creator Revision=0x%x\n", sdp->AslCompilerRevision); 574} 575 576static void 577acpi_print_rsdt(ACPI_TABLE_HEADER *rsdp) 578{ 579 ACPI_TABLE_RSDT *rsdt; 580 ACPI_TABLE_XSDT *xsdt; 581 int i, entries; 582 u_long addr; 583 584 rsdt = (ACPI_TABLE_RSDT *)rsdp; 585 xsdt = (ACPI_TABLE_XSDT *)rsdp; 586 printf(BEGIN_COMMENT); 587 acpi_print_sdt(rsdp); 588 entries = (rsdp->Length - sizeof(ACPI_TABLE_HEADER)) / addr_size; 589 printf("\tEntries={ "); 590 for (i = 0; i < entries; i++) { 591 if (i > 0) 592 printf(", "); 593 switch (addr_size) { 594 case 4: 595 addr = le32toh(rsdt->TableOffsetEntry[i]); 596 break; 597 case 8: 598 addr = le64toh(xsdt->TableOffsetEntry[i]); 599 break; 600 default: 601 addr = 0; 602 } 603 assert(addr != 0); 604 printf("0x%08lx", addr); 605 } 606 printf(" }\n"); 607 printf(END_COMMENT); 608} 609 610static const char *acpi_pm_profiles[] = { 611 "Unspecified", "Desktop", "Mobile", "Workstation", 612 "Enterprise Server", "SOHO Server", "Appliance PC" 613}; 614 615static void 616acpi_print_fadt(ACPI_TABLE_HEADER *sdp) 617{ 618 ACPI_TABLE_FADT *fadt; 619 const char *pm; 620 char sep; 621 622 fadt = (ACPI_TABLE_FADT *)sdp; 623 printf(BEGIN_COMMENT); 624 acpi_print_sdt(sdp); 625 printf(" \tFACS=0x%x, DSDT=0x%x\n", fadt->Facs, 626 fadt->Dsdt); 627 printf("\tINT_MODEL=%s\n", fadt->Model ? "APIC" : "PIC"); 628 if (fadt->PreferredProfile >= sizeof(acpi_pm_profiles) / sizeof(char *)) 629 pm = "Reserved"; 630 else 631 pm = acpi_pm_profiles[fadt->PreferredProfile]; 632 printf("\tPreferred_PM_Profile=%s (%d)\n", pm, fadt->PreferredProfile); 633 printf("\tSCI_INT=%d\n", fadt->SciInterrupt); 634 printf("\tSMI_CMD=0x%x, ", fadt->SmiCommand); 635 printf("ACPI_ENABLE=0x%x, ", fadt->AcpiEnable); 636 printf("ACPI_DISABLE=0x%x, ", fadt->AcpiDisable); 637 printf("S4BIOS_REQ=0x%x\n", fadt->S4BiosRequest); 638 printf("\tPSTATE_CNT=0x%x\n", fadt->PstateControl); 639 printf("\tPM1a_EVT_BLK=0x%x-0x%x\n", 640 fadt->Pm1aEventBlock, 641 fadt->Pm1aEventBlock + fadt->Pm1EventLength - 1); 642 if (fadt->Pm1bEventBlock != 0) 643 printf("\tPM1b_EVT_BLK=0x%x-0x%x\n", 644 fadt->Pm1bEventBlock, 645 fadt->Pm1bEventBlock + fadt->Pm1EventLength - 1); 646 printf("\tPM1a_CNT_BLK=0x%x-0x%x\n", 647 fadt->Pm1aControlBlock, 648 fadt->Pm1aControlBlock + fadt->Pm1ControlLength - 1); 649 if (fadt->Pm1bControlBlock != 0) 650 printf("\tPM1b_CNT_BLK=0x%x-0x%x\n", 651 fadt->Pm1bControlBlock, 652 fadt->Pm1bControlBlock + fadt->Pm1ControlLength - 1); 653 if (fadt->Pm2ControlBlock != 0) 654 printf("\tPM2_CNT_BLK=0x%x-0x%x\n", 655 fadt->Pm2ControlBlock, 656 fadt->Pm2ControlBlock + fadt->Pm2ControlLength - 1); 657 printf("\tPM_TMR_BLK=0x%x-0x%x\n", 658 fadt->PmTimerBlock, 659 fadt->PmTimerBlock + fadt->PmTimerLength - 1); 660 if (fadt->Gpe0Block != 0) 661 printf("\tGPE0_BLK=0x%x-0x%x\n", 662 fadt->Gpe0Block, 663 fadt->Gpe0Block + fadt->Gpe0BlockLength - 1); 664 if (fadt->Gpe1Block != 0) 665 printf("\tGPE1_BLK=0x%x-0x%x, GPE1_BASE=%d\n", 666 fadt->Gpe1Block, 667 fadt->Gpe1Block + fadt->Gpe1BlockLength - 1, 668 fadt->Gpe1Base); 669 if (fadt->CstControl != 0) 670 printf("\tCST_CNT=0x%x\n", fadt->CstControl); 671 printf("\tP_LVL2_LAT=%d us, P_LVL3_LAT=%d us\n", 672 fadt->C2Latency, fadt->C3Latency); 673 printf("\tFLUSH_SIZE=%d, FLUSH_STRIDE=%d\n", 674 fadt->FlushSize, fadt->FlushStride); 675 printf("\tDUTY_OFFSET=%d, DUTY_WIDTH=%d\n", 676 fadt->DutyOffset, fadt->DutyWidth); 677 printf("\tDAY_ALRM=%d, MON_ALRM=%d, CENTURY=%d\n", 678 fadt->DayAlarm, fadt->MonthAlarm, fadt->Century); 679 680#define PRINTFLAG(var, flag) do { \ 681 if ((var) & ACPI_FADT_## flag) { \ 682 printf("%c%s", sep, #flag); sep = ','; \ 683 } \ 684} while (0) 685 686 printf("\tIAPC_BOOT_ARCH="); 687 sep = '{'; 688 PRINTFLAG(fadt->BootFlags, LEGACY_DEVICES); 689 PRINTFLAG(fadt->BootFlags, 8042); 690 PRINTFLAG(fadt->BootFlags, NO_VGA); 691 PRINTFLAG(fadt->BootFlags, NO_MSI); 692 PRINTFLAG(fadt->BootFlags, NO_ASPM); 693 if (fadt->BootFlags != 0) 694 printf("}"); 695 printf("\n"); 696 697 printf("\tFlags="); 698 sep = '{'; 699 PRINTFLAG(fadt->Flags, WBINVD); 700 PRINTFLAG(fadt->Flags, WBINVD_FLUSH); 701 PRINTFLAG(fadt->Flags, C1_SUPPORTED); 702 PRINTFLAG(fadt->Flags, C2_MP_SUPPORTED); 703 PRINTFLAG(fadt->Flags, POWER_BUTTON); 704 PRINTFLAG(fadt->Flags, SLEEP_BUTTON); 705 PRINTFLAG(fadt->Flags, FIXED_RTC); 706 PRINTFLAG(fadt->Flags, S4_RTC_WAKE); 707 PRINTFLAG(fadt->Flags, 32BIT_TIMER); 708 PRINTFLAG(fadt->Flags, DOCKING_SUPPORTED); 709 PRINTFLAG(fadt->Flags, RESET_REGISTER); 710 PRINTFLAG(fadt->Flags, SEALED_CASE); 711 PRINTFLAG(fadt->Flags, HEADLESS); 712 PRINTFLAG(fadt->Flags, SLEEP_TYPE); 713 PRINTFLAG(fadt->Flags, PCI_EXPRESS_WAKE); 714 PRINTFLAG(fadt->Flags, PLATFORM_CLOCK); 715 PRINTFLAG(fadt->Flags, S4_RTC_VALID); 716 PRINTFLAG(fadt->Flags, REMOTE_POWER_ON); 717 PRINTFLAG(fadt->Flags, APIC_CLUSTER); 718 PRINTFLAG(fadt->Flags, APIC_PHYSICAL); 719 if (fadt->Flags != 0) 720 printf("}\n"); 721 722#undef PRINTFLAG 723 724 if (fadt->Flags & ACPI_FADT_RESET_REGISTER) { 725 printf("\tRESET_REG="); 726 acpi_print_gas(&fadt->ResetRegister); 727 printf(", RESET_VALUE=%#x\n", fadt->ResetValue); 728 } 729 if (acpi_get_fadt_revision(fadt) > 1) { 730 printf("\tX_FACS=0x%08lx, ", (u_long)fadt->XFacs); 731 printf("X_DSDT=0x%08lx\n", (u_long)fadt->XDsdt); 732 printf("\tX_PM1a_EVT_BLK="); 733 acpi_print_gas(&fadt->XPm1aEventBlock); 734 if (fadt->XPm1bEventBlock.Address != 0) { 735 printf("\n\tX_PM1b_EVT_BLK="); 736 acpi_print_gas(&fadt->XPm1bEventBlock); 737 } 738 printf("\n\tX_PM1a_CNT_BLK="); 739 acpi_print_gas(&fadt->XPm1aControlBlock); 740 if (fadt->XPm1bControlBlock.Address != 0) { 741 printf("\n\tX_PM1b_CNT_BLK="); 742 acpi_print_gas(&fadt->XPm1bControlBlock); 743 } 744 if (fadt->XPm2ControlBlock.Address != 0) { 745 printf("\n\tX_PM2_CNT_BLK="); 746 acpi_print_gas(&fadt->XPm2ControlBlock); 747 } 748 printf("\n\tX_PM_TMR_BLK="); 749 acpi_print_gas(&fadt->XPmTimerBlock); 750 if (fadt->XGpe0Block.Address != 0) { 751 printf("\n\tX_GPE0_BLK="); 752 acpi_print_gas(&fadt->XGpe0Block); 753 } 754 if (fadt->XGpe1Block.Address != 0) { 755 printf("\n\tX_GPE1_BLK="); 756 acpi_print_gas(&fadt->XGpe1Block); 757 } 758 printf("\n"); 759 } 760 761 printf(END_COMMENT); 762} 763 764static void 765acpi_print_facs(ACPI_TABLE_FACS *facs) 766{ 767 printf(BEGIN_COMMENT); 768 printf(" FACS:\tLength=%u, ", facs->Length); 769 printf("HwSig=0x%08x, ", facs->HardwareSignature); 770 printf("Firm_Wake_Vec=0x%08x\n", facs->FirmwareWakingVector); 771 772 printf("\tGlobal_Lock="); 773 if (facs->GlobalLock != 0) { 774 if (facs->GlobalLock & ACPI_GLOCK_PENDING) 775 printf("PENDING,"); 776 if (facs->GlobalLock & ACPI_GLOCK_OWNED) 777 printf("OWNED"); 778 } 779 printf("\n"); 780 781 printf("\tFlags="); 782 if (facs->Flags & ACPI_FACS_S4_BIOS_PRESENT) 783 printf("S4BIOS"); 784 printf("\n"); 785 786 if (facs->XFirmwareWakingVector != 0) { 787 printf("\tX_Firm_Wake_Vec=%08lx\n", 788 (u_long)facs->XFirmwareWakingVector); 789 } 790 printf("\tVersion=%u\n", facs->Version); 791 792 printf(END_COMMENT); 793} 794 795static void 796acpi_print_dsdt(ACPI_TABLE_HEADER *dsdp) 797{ 798 printf(BEGIN_COMMENT); 799 acpi_print_sdt(dsdp); 800 printf(END_COMMENT); 801} 802 803int 804acpi_checksum(void *p, size_t length) 805{ 806 uint8_t *bp; 807 uint8_t sum; 808 809 bp = p; 810 sum = 0; 811 while (length--) 812 sum += *bp++; 813 814 return (sum); 815} 816 817static ACPI_TABLE_HEADER * 818acpi_map_sdt(vm_offset_t pa) 819{ 820 ACPI_TABLE_HEADER *sp; 821 822 sp = acpi_map_physical(pa, sizeof(ACPI_TABLE_HEADER)); 823 sp = acpi_map_physical(pa, sp->Length); 824 return (sp); 825} 826 827static void 828acpi_print_rsd_ptr(ACPI_TABLE_RSDP *rp) 829{ 830 printf(BEGIN_COMMENT); 831 printf(" RSD PTR: OEM="); 832 acpi_print_string(rp->OemId, ACPI_OEM_ID_SIZE); 833 printf(", ACPI_Rev=%s (%d)\n", rp->Revision < 2 ? "1.0x" : "2.0x", 834 rp->Revision); 835 if (rp->Revision < 2) { 836 printf("\tRSDT=0x%08x, cksum=%u\n", rp->RsdtPhysicalAddress, 837 rp->Checksum); 838 } else { 839 printf("\tXSDT=0x%08lx, length=%u, cksum=%u\n", 840 (u_long)rp->XsdtPhysicalAddress, rp->Length, 841 rp->ExtendedChecksum); 842 } 843 printf(END_COMMENT); 844} 845 846static void 847acpi_handle_rsdt(ACPI_TABLE_HEADER *rsdp) 848{ 849 ACPI_TABLE_HEADER *sdp; 850 ACPI_TABLE_RSDT *rsdt; 851 ACPI_TABLE_XSDT *xsdt; 852 vm_offset_t addr; 853 int entries, i; 854 855 acpi_print_rsdt(rsdp); 856 rsdt = (ACPI_TABLE_RSDT *)rsdp; 857 xsdt = (ACPI_TABLE_XSDT *)rsdp; 858 entries = (rsdp->Length - sizeof(ACPI_TABLE_HEADER)) / addr_size; 859 for (i = 0; i < entries; i++) { 860 switch (addr_size) { 861 case 4: 862 addr = le32toh(rsdt->TableOffsetEntry[i]); 863 break; 864 case 8: 865 addr = le64toh(xsdt->TableOffsetEntry[i]); 866 break; 867 default: 868 assert((addr = 0)); 869 } 870 871 sdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(addr); 872 if (acpi_checksum(sdp, sdp->Length)) { 873 warnx("RSDT entry %d (sig %.4s) is corrupt", i, 874 sdp->Signature); 875 continue; 876 } 877 if (!memcmp(sdp->Signature, ACPI_SIG_FADT, 4)) 878 acpi_handle_fadt(sdp); 879 else if (!memcmp(sdp->Signature, ACPI_SIG_MADT, 4)) 880 acpi_handle_madt(sdp); 881 else if (!memcmp(sdp->Signature, ACPI_SIG_HPET, 4)) 882 acpi_handle_hpet(sdp); 883 else if (!memcmp(sdp->Signature, ACPI_SIG_ECDT, 4)) 884 acpi_handle_ecdt(sdp); 885 else if (!memcmp(sdp->Signature, ACPI_SIG_MCFG, 4)) 886 acpi_handle_mcfg(sdp); 887 else if (!memcmp(sdp->Signature, ACPI_SIG_SRAT, 4)) 888 acpi_handle_srat(sdp); 889 else { 890 printf(BEGIN_COMMENT); 891 acpi_print_sdt(sdp); 892 printf(END_COMMENT); 893 } 894 } 895} 896 897ACPI_TABLE_HEADER * 898sdt_load_devmem(void) 899{ 900 ACPI_TABLE_RSDP *rp; 901 ACPI_TABLE_HEADER *rsdp; 902 903 rp = acpi_find_rsd_ptr(); 904 if (!rp) 905 errx(1, "Can't find ACPI information"); 906 907 if (tflag) 908 acpi_print_rsd_ptr(rp); 909 if (rp->Revision < 2) { 910 rsdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(rp->RsdtPhysicalAddress); 911 if (memcmp(rsdp->Signature, "RSDT", 4) != 0 || 912 acpi_checksum(rsdp, rsdp->Length) != 0) 913 errx(1, "RSDT is corrupted"); 914 addr_size = sizeof(uint32_t); 915 } else { 916 rsdp = (ACPI_TABLE_HEADER *)acpi_map_sdt(rp->XsdtPhysicalAddress); 917 if (memcmp(rsdp->Signature, "XSDT", 4) != 0 || 918 acpi_checksum(rsdp, rsdp->Length) != 0) 919 errx(1, "XSDT is corrupted"); 920 addr_size = sizeof(uint64_t); 921 } 922 return (rsdp); 923} 924 925/* Write the DSDT to a file, concatenating any SSDTs (if present). */ 926static int 927write_dsdt(int fd, ACPI_TABLE_HEADER *rsdt, ACPI_TABLE_HEADER *dsdt) 928{ 929 ACPI_TABLE_HEADER sdt; 930 ACPI_TABLE_HEADER *ssdt; 931 uint8_t sum; 932 933 /* Create a new checksum to account for the DSDT and any SSDTs. */ 934 sdt = *dsdt; 935 if (rsdt != NULL) { 936 sdt.Checksum = 0; 937 sum = acpi_checksum(dsdt + 1, dsdt->Length - 938 sizeof(ACPI_TABLE_HEADER)); 939 ssdt = sdt_from_rsdt(rsdt, ACPI_SIG_SSDT, NULL); 940 while (ssdt != NULL) { 941 sdt.Length += ssdt->Length - sizeof(ACPI_TABLE_HEADER); 942 sum += acpi_checksum(ssdt + 1, 943 ssdt->Length - sizeof(ACPI_TABLE_HEADER)); 944 ssdt = sdt_from_rsdt(rsdt, ACPI_SIG_SSDT, ssdt); 945 } 946 sum += acpi_checksum(&sdt, sizeof(ACPI_TABLE_HEADER)); 947 sdt.Checksum -= sum; 948 } 949 950 /* Write out the DSDT header and body. */ 951 write(fd, &sdt, sizeof(ACPI_TABLE_HEADER)); 952 write(fd, dsdt + 1, dsdt->Length - sizeof(ACPI_TABLE_HEADER)); 953 954 /* Write out any SSDTs (if present.) */ 955 if (rsdt != NULL) { 956 ssdt = sdt_from_rsdt(rsdt, "SSDT", NULL); 957 while (ssdt != NULL) { 958 write(fd, ssdt + 1, ssdt->Length - 959 sizeof(ACPI_TABLE_HEADER)); 960 ssdt = sdt_from_rsdt(rsdt, "SSDT", ssdt); 961 } 962 } 963 return (0); 964} 965 966void 967dsdt_save_file(char *outfile, ACPI_TABLE_HEADER *rsdt, ACPI_TABLE_HEADER *dsdp) 968{ 969 int fd; 970 mode_t mode; 971 972 assert(outfile != NULL); 973 mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH; 974 fd = open(outfile, O_WRONLY | O_CREAT | O_TRUNC, mode); 975 if (fd == -1) { 976 perror("dsdt_save_file"); 977 return; 978 } 979 write_dsdt(fd, rsdt, dsdp); 980 close(fd); 981} 982 983void 984aml_disassemble(ACPI_TABLE_HEADER *rsdt, ACPI_TABLE_HEADER *dsdp) 985{ 986 char buf[PATH_MAX], tmpstr[PATH_MAX]; 987 const char *tmpdir; 988 char *tmpext; 989 FILE *fp; 990 size_t len; 991 int fd; 992 993 tmpdir = getenv("TMPDIR"); 994 if (tmpdir == NULL) 995 tmpdir = _PATH_TMP; 996 strncpy(tmpstr, tmpdir, sizeof(tmpstr)); 997 strncat(tmpstr, "/acpidump.", sizeof(tmpstr) - strlen(tmpdir)); 998 if (realpath(tmpstr, buf) == NULL) { 999 perror("realpath tmp file"); 1000 return; 1001 } 1002 strncpy(tmpstr, buf, sizeof(tmpstr)); 1003 len = strlen(buf); 1004 tmpext = tmpstr + len; 1005 strncpy(tmpext, "XXXXXX", sizeof(tmpstr) - len); 1006 fd = mkstemp(tmpstr); 1007 if (fd < 0) { 1008 perror("iasl tmp file"); 1009 return; 1010 } 1011 write_dsdt(fd, rsdt, dsdp); 1012 close(fd); 1013 1014 /* Run iasl -d on the temp file */ 1015 if (fork() == 0) { 1016 close(STDOUT_FILENO); 1017 if (vflag == 0) 1018 close(STDERR_FILENO); 1019 execl("/usr/sbin/iasl", "iasl", "-d", tmpstr, NULL); 1020 err(1, "exec"); 1021 } 1022 1023 wait(NULL); 1024 unlink(tmpstr); 1025 1026 /* Dump iasl's output to stdout */ 1027 strncpy(tmpext, "dsl", sizeof(tmpstr) - len); 1028 fp = fopen(tmpstr, "r"); 1029 unlink(tmpstr); 1030 if (fp == NULL) { 1031 perror("iasl tmp file (read)"); 1032 return; 1033 } 1034 while ((len = fread(buf, 1, sizeof(buf), fp)) > 0) 1035 fwrite(buf, 1, len, stdout); 1036 fclose(fp); 1037} 1038 1039void 1040sdt_print_all(ACPI_TABLE_HEADER *rsdp) 1041{ 1042 acpi_handle_rsdt(rsdp); 1043} 1044 1045/* Fetch a table matching the given signature via the RSDT. */ 1046ACPI_TABLE_HEADER * 1047sdt_from_rsdt(ACPI_TABLE_HEADER *rsdp, const char *sig, ACPI_TABLE_HEADER *last) 1048{ 1049 ACPI_TABLE_HEADER *sdt; 1050 ACPI_TABLE_RSDT *rsdt; 1051 ACPI_TABLE_XSDT *xsdt; 1052 vm_offset_t addr; 1053 int entries, i; 1054 1055 rsdt = (ACPI_TABLE_RSDT *)rsdp; 1056 xsdt = (ACPI_TABLE_XSDT *)rsdp; 1057 entries = (rsdp->Length - sizeof(ACPI_TABLE_HEADER)) / addr_size; 1058 for (i = 0; i < entries; i++) { 1059 switch (addr_size) { 1060 case 4: 1061 addr = le32toh(rsdt->TableOffsetEntry[i]); 1062 break; 1063 case 8: 1064 addr = le64toh(xsdt->TableOffsetEntry[i]); 1065 break; 1066 default: 1067 assert((addr = 0)); 1068 } 1069 sdt = (ACPI_TABLE_HEADER *)acpi_map_sdt(addr); 1070 if (last != NULL) { 1071 if (sdt == last) 1072 last = NULL; 1073 continue; 1074 } 1075 if (memcmp(sdt->Signature, sig, strlen(sig))) 1076 continue; 1077 if (acpi_checksum(sdt, sdt->Length)) 1078 errx(1, "RSDT entry %d is corrupt", i); 1079 return (sdt); 1080 } 1081 1082 return (NULL); 1083} 1084 1085ACPI_TABLE_HEADER * 1086dsdt_from_fadt(ACPI_TABLE_FADT *fadt) 1087{ 1088 ACPI_TABLE_HEADER *sdt; 1089 1090 /* Use the DSDT address if it is version 1, otherwise use XDSDT. */ 1091 if (acpi_get_fadt_revision(fadt) == 1) 1092 sdt = (ACPI_TABLE_HEADER *)acpi_map_sdt(fadt->Dsdt); 1093 else 1094 sdt = (ACPI_TABLE_HEADER *)acpi_map_sdt(fadt->XDsdt); 1095 if (acpi_checksum(sdt, sdt->Length)) 1096 errx(1, "DSDT is corrupt\n"); 1097 return (sdt); 1098} 1099