1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2012 NetApp, Inc. 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. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29/* 30 * bhyve ACPI table generator. 31 * 32 * Create the minimal set of ACPI tables required to boot FreeBSD (and 33 * hopefully other o/s's). 34 * 35 * The tables are placed in the guest's ROM area just below 1MB physical, 36 * above the MPTable. 37 */ 38 39#include <sys/param.h> 40#include <sys/endian.h> 41#include <sys/errno.h> 42#include <sys/stat.h> 43 44#include <err.h> 45#include <paths.h> 46#include <stdarg.h> 47#include <stddef.h> 48#include <stdio.h> 49#include <stdlib.h> 50#include <string.h> 51#include <unistd.h> 52 53#include <machine/vmm.h> 54#include <vmmapi.h> 55 56#include "bhyverun.h" 57#include "acpi.h" 58#include "basl.h" 59#include "pci_emul.h" 60#include "vmgenc.h" 61 62#define BHYVE_ASL_TEMPLATE "bhyve.XXXXXXX" 63#define BHYVE_ASL_SUFFIX ".aml" 64#define BHYVE_ASL_COMPILER "/usr/sbin/iasl" 65 66#define BHYVE_ADDRESS_IOAPIC 0xFEC00000 67#define BHYVE_ADDRESS_HPET 0xFED00000 68#define BHYVE_ADDRESS_LAPIC 0xFEE00000 69 70static int basl_keep_temps; 71static int basl_verbose_iasl; 72static int basl_ncpu; 73 74/* 75 * Contains the full pathname of the template to be passed 76 * to mkstemp/mktemps(3) 77 */ 78static char basl_template[MAXPATHLEN]; 79static char basl_stemplate[MAXPATHLEN]; 80 81/* 82 * State for dsdt_line(), dsdt_indent(), and dsdt_unindent(). 83 */ 84static FILE *dsdt_fp; 85static int dsdt_indent_level; 86static int dsdt_error; 87 88struct basl_fio { 89 int fd; 90 FILE *fp; 91 char f_name[MAXPATHLEN]; 92}; 93 94#define EFPRINTF(...) \ 95 if (fprintf(__VA_ARGS__) < 0) goto err_exit 96 97#define EFFLUSH(x) \ 98 if (fflush(x) != 0) goto err_exit 99 100/* 101 * A list for additional ACPI devices like a TPM. 102 */ 103struct acpi_device_list_entry { 104 SLIST_ENTRY(acpi_device_list_entry) chain; 105 const struct acpi_device *dev; 106}; 107static SLIST_HEAD(acpi_device_list, 108 acpi_device_list_entry) acpi_devices = SLIST_HEAD_INITIALIZER(acpi_devices); 109 110int 111acpi_tables_add_device(const struct acpi_device *const dev) 112{ 113 struct acpi_device_list_entry *const entry = calloc(1, sizeof(*entry)); 114 if (entry == NULL) { 115 return (ENOMEM); 116 } 117 118 entry->dev = dev; 119 SLIST_INSERT_HEAD(&acpi_devices, entry, chain); 120 121 return (0); 122} 123 124/* 125 * Helper routines for writing to the DSDT from other modules. 126 */ 127void 128dsdt_line(const char *fmt, ...) 129{ 130 va_list ap; 131 132 if (dsdt_error != 0) 133 return; 134 135 if (strcmp(fmt, "") != 0) { 136 if (dsdt_indent_level != 0) 137 EFPRINTF(dsdt_fp, "%*c", dsdt_indent_level * 2, ' '); 138 va_start(ap, fmt); 139 if (vfprintf(dsdt_fp, fmt, ap) < 0) { 140 va_end(ap); 141 goto err_exit; 142 } 143 va_end(ap); 144 } 145 EFPRINTF(dsdt_fp, "\n"); 146 return; 147 148err_exit: 149 dsdt_error = errno; 150} 151 152void 153dsdt_indent(int levels) 154{ 155 156 dsdt_indent_level += levels; 157 assert(dsdt_indent_level >= 0); 158} 159 160void 161dsdt_unindent(int levels) 162{ 163 164 assert(dsdt_indent_level >= levels); 165 dsdt_indent_level -= levels; 166} 167 168void 169dsdt_fixed_ioport(uint16_t iobase, uint16_t length) 170{ 171 172 dsdt_line("IO (Decode16,"); 173 dsdt_line(" 0x%04X, // Range Minimum", iobase); 174 dsdt_line(" 0x%04X, // Range Maximum", iobase); 175 dsdt_line(" 0x01, // Alignment"); 176 dsdt_line(" 0x%02X, // Length", length); 177 dsdt_line(" )"); 178} 179 180void 181dsdt_fixed_irq(uint8_t irq) 182{ 183 184 dsdt_line("IRQNoFlags ()"); 185 dsdt_line(" {%d}", irq); 186} 187 188void 189dsdt_fixed_mem32(uint32_t base, uint32_t length) 190{ 191 192 dsdt_line("Memory32Fixed (ReadWrite,"); 193 dsdt_line(" 0x%08X, // Address Base", base); 194 dsdt_line(" 0x%08X, // Address Length", length); 195 dsdt_line(" )"); 196} 197 198static int 199basl_fwrite_dsdt(FILE *fp) 200{ 201 dsdt_fp = fp; 202 dsdt_error = 0; 203 dsdt_indent_level = 0; 204 205 dsdt_line("/*"); 206 dsdt_line(" * bhyve DSDT template"); 207 dsdt_line(" */"); 208 dsdt_line("DefinitionBlock (\"bhyve_dsdt.aml\", \"DSDT\", 2," 209 "\"BHYVE \", \"BVDSDT \", 0x00000001)"); 210 dsdt_line("{"); 211 dsdt_line(" Name (_S5, Package ()"); 212 dsdt_line(" {"); 213 dsdt_line(" 0x05,"); 214 dsdt_line(" Zero,"); 215 dsdt_line(" })"); 216 217 pci_write_dsdt(); 218 219#ifdef __amd64__ 220 dsdt_line(""); 221 dsdt_line(" Scope (_SB.PC00)"); 222 dsdt_line(" {"); 223 dsdt_line(" Device (HPET)"); 224 dsdt_line(" {"); 225 dsdt_line(" Name (_HID, EISAID(\"PNP0103\"))"); 226 dsdt_line(" Name (_UID, 0)"); 227 dsdt_line(" Name (_CRS, ResourceTemplate ()"); 228 dsdt_line(" {"); 229 dsdt_indent(4); 230 dsdt_fixed_mem32(0xFED00000, 0x400); 231 dsdt_unindent(4); 232 dsdt_line(" })"); 233 dsdt_line(" }"); 234 dsdt_line(" }"); 235#endif 236 237 vmgenc_write_dsdt(); 238 239 const struct acpi_device_list_entry *entry; 240 SLIST_FOREACH(entry, &acpi_devices, chain) { 241 BASL_EXEC(acpi_device_write_dsdt(entry->dev)); 242 } 243 244 dsdt_line("}"); 245 246 if (dsdt_error != 0) 247 return (dsdt_error); 248 249 EFFLUSH(fp); 250 251 return (0); 252 253err_exit: 254 return (errno); 255} 256 257static int 258basl_open(struct basl_fio *bf, int suffix) 259{ 260 int err; 261 262 err = 0; 263 264 if (suffix) { 265 strlcpy(bf->f_name, basl_stemplate, MAXPATHLEN); 266 bf->fd = mkstemps(bf->f_name, strlen(BHYVE_ASL_SUFFIX)); 267 } else { 268 strlcpy(bf->f_name, basl_template, MAXPATHLEN); 269 bf->fd = mkstemp(bf->f_name); 270 } 271 272 if (bf->fd > 0) { 273 bf->fp = fdopen(bf->fd, "w+"); 274 if (bf->fp == NULL) { 275 unlink(bf->f_name); 276 close(bf->fd); 277 } 278 } else { 279 err = 1; 280 } 281 282 return (err); 283} 284 285static void 286basl_close(struct basl_fio *bf) 287{ 288 289 if (!basl_keep_temps) 290 unlink(bf->f_name); 291 fclose(bf->fp); 292} 293 294static int 295basl_start(struct basl_fio *in, struct basl_fio *out) 296{ 297 int err; 298 299 err = basl_open(in, 0); 300 if (!err) { 301 err = basl_open(out, 1); 302 if (err) { 303 basl_close(in); 304 } 305 } 306 307 return (err); 308} 309 310static void 311basl_end(struct basl_fio *in, struct basl_fio *out) 312{ 313 314 basl_close(in); 315 basl_close(out); 316} 317 318static int 319basl_load(struct vmctx *ctx, int fd) 320{ 321 struct stat sb; 322 void *addr; 323 324 if (fstat(fd, &sb) < 0) 325 return (errno); 326 327 addr = calloc(1, sb.st_size); 328 if (addr == NULL) 329 return (ENOMEM); 330 331 if (read(fd, addr, sb.st_size) < 0) 332 return (errno); 333 334 struct basl_table *table; 335 336 uint8_t name[ACPI_NAMESEG_SIZE + 1] = { 0 }; 337 memcpy(name, addr, sizeof(name) - 1 /* last char is '\0' */); 338 BASL_EXEC(basl_table_create(&table, ctx, name, BASL_TABLE_ALIGNMENT)); 339 BASL_EXEC(basl_table_append_bytes(table, addr, sb.st_size)); 340 341 free(addr); 342 return (0); 343} 344 345static int 346basl_compile(struct vmctx *ctx, int (*fwrite_section)(FILE *)) 347{ 348 struct basl_fio io[2]; 349 static char iaslbuf[3*MAXPATHLEN + 10]; 350 const char *fmt; 351 int err; 352 353 err = basl_start(&io[0], &io[1]); 354 if (!err) { 355 err = (*fwrite_section)(io[0].fp); 356 357 if (!err) { 358 /* 359 * iasl sends the results of the compilation to 360 * stdout. Shut this down by using the shell to 361 * redirect stdout to /dev/null, unless the user 362 * has requested verbose output for debugging 363 * purposes 364 */ 365 fmt = basl_verbose_iasl ? 366 "%s -p %s %s" : 367 "/bin/sh -c \"%s -p %s %s\" 1> /dev/null"; 368 369 snprintf(iaslbuf, sizeof(iaslbuf), 370 fmt, 371 BHYVE_ASL_COMPILER, 372 io[1].f_name, io[0].f_name); 373 err = system(iaslbuf); 374 375 if (!err) { 376 /* 377 * Copy the aml output file into guest 378 * memory at the specified location 379 */ 380 err = basl_load(ctx, io[1].fd); 381 } 382 } 383 basl_end(&io[0], &io[1]); 384 } 385 386 return (err); 387} 388 389static int 390basl_make_templates(void) 391{ 392 const char *tmpdir; 393 int err; 394 int len; 395 396 err = 0; 397 398 /* 399 * 400 */ 401 if ((tmpdir = getenv("BHYVE_TMPDIR")) == NULL || *tmpdir == '\0' || 402 (tmpdir = getenv("TMPDIR")) == NULL || *tmpdir == '\0') { 403 tmpdir = _PATH_TMP; 404 } 405 406 len = strlen(tmpdir); 407 408 if ((len + sizeof(BHYVE_ASL_TEMPLATE) + 1) < MAXPATHLEN) { 409 strcpy(basl_template, tmpdir); 410 while (len > 0 && basl_template[len - 1] == '/') 411 len--; 412 basl_template[len] = '/'; 413 strcpy(&basl_template[len + 1], BHYVE_ASL_TEMPLATE); 414 } else 415 err = E2BIG; 416 417 if (!err) { 418 /* 419 * len has been initialized (and maybe adjusted) above 420 */ 421 if ((len + sizeof(BHYVE_ASL_TEMPLATE) + 1 + 422 sizeof(BHYVE_ASL_SUFFIX)) < MAXPATHLEN) { 423 strcpy(basl_stemplate, tmpdir); 424 basl_stemplate[len] = '/'; 425 strcpy(&basl_stemplate[len + 1], BHYVE_ASL_TEMPLATE); 426 len = strlen(basl_stemplate); 427 strcpy(&basl_stemplate[len], BHYVE_ASL_SUFFIX); 428 } else 429 err = E2BIG; 430 } 431 432 return (err); 433} 434 435static int 436build_dsdt(struct vmctx *const ctx) 437{ 438 BASL_EXEC(basl_compile(ctx, basl_fwrite_dsdt)); 439 440 return (0); 441} 442 443static int 444build_facs(struct vmctx *const ctx) 445{ 446 ACPI_TABLE_FACS facs; 447 struct basl_table *table; 448 449 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_FACS, 450 BASL_TABLE_ALIGNMENT_FACS)); 451 452 memset(&facs, 0, sizeof(facs)); 453 memcpy(facs.Signature, ACPI_SIG_FACS, ACPI_NAMESEG_SIZE); 454 facs.Length = sizeof(facs); 455 facs.Version = htole32(2); 456 BASL_EXEC(basl_table_append_bytes(table, &facs, sizeof(facs))); 457 458 return (0); 459} 460 461static int 462build_fadt(struct vmctx *const ctx) 463{ 464 ACPI_TABLE_FADT fadt; 465 struct basl_table *table; 466 467 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_FADT, 468 BASL_TABLE_ALIGNMENT)); 469 470 memset(&fadt, 0, sizeof(fadt)); 471 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_FADT, 5, 1)); 472 fadt.Facs = htole32(0); /* patched by basl */ 473 fadt.Dsdt = htole32(0); /* patched by basl */ 474 fadt.SciInterrupt = htole16(SCI_INT); 475 fadt.SmiCommand = htole32(SMI_CMD); 476 fadt.AcpiEnable = BHYVE_ACPI_ENABLE; 477 fadt.AcpiDisable = BHYVE_ACPI_DISABLE; 478 fadt.Pm1aEventBlock = htole32(PM1A_EVT_ADDR); 479 fadt.Pm1aControlBlock = htole32(PM1A_CNT_ADDR); 480 fadt.PmTimerBlock = htole32(IO_PMTMR); 481 fadt.Gpe0Block = htole32(IO_GPE0_BLK); 482 fadt.Pm1EventLength = 4; 483 fadt.Pm1ControlLength = 2; 484 fadt.PmTimerLength = 4; 485 fadt.Gpe0BlockLength = IO_GPE0_LEN; 486 fadt.Century = 0x32; 487 fadt.BootFlags = htole16(ACPI_FADT_NO_VGA | ACPI_FADT_NO_ASPM); 488 fadt.Flags = htole32(ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | 489 ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_32BIT_TIMER | 490 ACPI_FADT_RESET_REGISTER | ACPI_FADT_HEADLESS | 491 ACPI_FADT_APIC_PHYSICAL); 492 basl_fill_gas(&fadt.ResetRegister, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 493 ACPI_GAS_ACCESS_WIDTH_BYTE, 0xCF9); 494 fadt.ResetValue = 6; 495 fadt.MinorRevision = 1; 496 fadt.XFacs = htole64(0); /* patched by basl */ 497 fadt.XDsdt = htole64(0); /* patched by basl */ 498 basl_fill_gas(&fadt.XPm1aEventBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0x20, 0, 499 ACPI_GAS_ACCESS_WIDTH_WORD, PM1A_EVT_ADDR); 500 basl_fill_gas(&fadt.XPm1bEventBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0, 0, 501 ACPI_GAS_ACCESS_WIDTH_UNDEFINED, 0); 502 basl_fill_gas(&fadt.XPm1aControlBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0x10, 503 0, ACPI_GAS_ACCESS_WIDTH_WORD, PM1A_CNT_ADDR); 504 basl_fill_gas(&fadt.XPm1bControlBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0, 0, 505 ACPI_GAS_ACCESS_WIDTH_UNDEFINED, 0); 506 basl_fill_gas(&fadt.XPm2ControlBlock, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 507 ACPI_GAS_ACCESS_WIDTH_UNDEFINED, 0); 508 basl_fill_gas(&fadt.XPmTimerBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0x20, 0, 509 ACPI_GAS_ACCESS_WIDTH_DWORD, IO_PMTMR); 510 basl_fill_gas(&fadt.XGpe0Block, ACPI_ADR_SPACE_SYSTEM_IO, 511 IO_GPE0_LEN * 8, 0, ACPI_GAS_ACCESS_WIDTH_BYTE, IO_GPE0_BLK); 512 basl_fill_gas(&fadt.XGpe1Block, ACPI_ADR_SPACE_SYSTEM_IO, 0, 0, 513 ACPI_GAS_ACCESS_WIDTH_UNDEFINED, 0); 514 basl_fill_gas(&fadt.SleepControl, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 515 ACPI_GAS_ACCESS_WIDTH_BYTE, 0); 516 basl_fill_gas(&fadt.SleepStatus, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 517 ACPI_GAS_ACCESS_WIDTH_BYTE, 0); 518 BASL_EXEC(basl_table_append_content(table, &fadt, sizeof(fadt))); 519 520 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_FACS, 521 offsetof(ACPI_TABLE_FADT, Facs), sizeof(fadt.Facs))); 522 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_DSDT, 523 offsetof(ACPI_TABLE_FADT, Dsdt), sizeof(fadt.Dsdt))); 524 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_FACS, 525 offsetof(ACPI_TABLE_FADT, XFacs), sizeof(fadt.XFacs))); 526 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_DSDT, 527 offsetof(ACPI_TABLE_FADT, XDsdt), sizeof(fadt.XDsdt))); 528 529 BASL_EXEC(basl_table_register_to_rsdt(table)); 530 531 return (0); 532} 533 534#ifdef __amd64__ 535static int 536build_hpet(struct vmctx *const ctx) 537{ 538 ACPI_TABLE_HPET hpet; 539 struct basl_table *table; 540 uint32_t hpet_capabilities; 541 int err; 542 543 err = vm_get_hpet_capabilities(ctx, &hpet_capabilities); 544 if (err != 0) 545 return (err); 546 547 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_HPET, 548 BASL_TABLE_ALIGNMENT)); 549 550 memset(&hpet, 0, sizeof(hpet)); 551 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_HPET, 1, 1)); 552 hpet.Id = htole32(hpet_capabilities); 553 basl_fill_gas(&hpet.Address, ACPI_ADR_SPACE_SYSTEM_MEMORY, 0, 0, 554 ACPI_GAS_ACCESS_WIDTH_LEGACY, BHYVE_ADDRESS_HPET); 555 hpet.Flags = ACPI_HPET_PAGE_PROTECT4; 556 BASL_EXEC(basl_table_append_content(table, &hpet, sizeof(hpet))); 557 558 BASL_EXEC(basl_table_register_to_rsdt(table)); 559 560 return (0); 561} 562#endif 563 564static int 565build_madt(struct vmctx *const ctx) 566{ 567 ACPI_TABLE_MADT madt; 568 ACPI_MADT_LOCAL_APIC madt_lapic; 569 ACPI_MADT_IO_APIC madt_ioapic; 570 ACPI_MADT_INTERRUPT_OVERRIDE madt_irq_override; 571 ACPI_MADT_LOCAL_APIC_NMI madt_lapic_nmi; 572 struct basl_table *table; 573 574 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_MADT, 575 BASL_TABLE_ALIGNMENT)); 576 577 memset(&madt, 0, sizeof(madt)); 578 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_MADT, 1, 1)); 579 madt.Address = htole32(BHYVE_ADDRESS_LAPIC); 580 madt.Flags = htole32(ACPI_MADT_PCAT_COMPAT); 581 BASL_EXEC(basl_table_append_content(table, &madt, sizeof(madt))); 582 583 /* Local APIC for each CPU */ 584 for (int i = 0; i < basl_ncpu; ++i) { 585 memset(&madt_lapic, 0, sizeof(madt_lapic)); 586 madt_lapic.Header.Type = ACPI_MADT_TYPE_LOCAL_APIC; 587 madt_lapic.Header.Length = sizeof(madt_lapic); 588 madt_lapic.ProcessorId = i; 589 madt_lapic.Id = i; 590 madt_lapic.LapicFlags = htole32(ACPI_MADT_ENABLED); 591 BASL_EXEC(basl_table_append_bytes(table, &madt_lapic, 592 sizeof(madt_lapic))); 593 } 594 595 /* I/O APIC */ 596 memset(&madt_ioapic, 0, sizeof(madt_ioapic)); 597 madt_ioapic.Header.Type = ACPI_MADT_TYPE_IO_APIC; 598 madt_ioapic.Header.Length = sizeof(madt_ioapic); 599 madt_ioapic.Address = htole32(BHYVE_ADDRESS_IOAPIC); 600 BASL_EXEC( 601 basl_table_append_bytes(table, &madt_ioapic, sizeof(madt_ioapic))); 602 603 /* Legacy IRQ0 is connected to pin 2 of the I/O APIC */ 604 memset(&madt_irq_override, 0, sizeof(madt_irq_override)); 605 madt_irq_override.Header.Type = ACPI_MADT_TYPE_INTERRUPT_OVERRIDE; 606 madt_irq_override.Header.Length = sizeof(madt_irq_override); 607 madt_irq_override.GlobalIrq = htole32(2); 608 madt_irq_override.IntiFlags = htole16( 609 ACPI_MADT_POLARITY_ACTIVE_HIGH | ACPI_MADT_TRIGGER_EDGE); 610 BASL_EXEC(basl_table_append_bytes(table, &madt_irq_override, 611 sizeof(madt_irq_override))); 612 613 memset(&madt_irq_override, 0, sizeof(madt_irq_override)); 614 madt_irq_override.Header.Type = ACPI_MADT_TYPE_INTERRUPT_OVERRIDE; 615 madt_irq_override.Header.Length = sizeof(madt_irq_override); 616 madt_irq_override.SourceIrq = SCI_INT; 617 madt_irq_override.GlobalIrq = htole32(SCI_INT); 618 madt_irq_override.IntiFlags = htole16( 619 ACPI_MADT_POLARITY_ACTIVE_LOW | ACPI_MADT_TRIGGER_LEVEL); 620 BASL_EXEC(basl_table_append_bytes(table, &madt_irq_override, 621 sizeof(madt_irq_override))); 622 623 /* Local APIC NMI is conntected to LINT 1 on all CPUs */ 624 memset(&madt_lapic_nmi, 0, sizeof(madt_lapic_nmi)); 625 madt_lapic_nmi.Header.Type = ACPI_MADT_TYPE_LOCAL_APIC_NMI; 626 madt_lapic_nmi.Header.Length = sizeof(madt_lapic_nmi); 627 madt_lapic_nmi.ProcessorId = 0xFF; 628 madt_lapic_nmi.IntiFlags = htole16( 629 ACPI_MADT_POLARITY_ACTIVE_HIGH | ACPI_MADT_TRIGGER_EDGE); 630 madt_lapic_nmi.Lint = 1; 631 BASL_EXEC(basl_table_append_bytes(table, &madt_lapic_nmi, 632 sizeof(madt_lapic_nmi))); 633 634 BASL_EXEC(basl_table_register_to_rsdt(table)); 635 636 return (0); 637} 638 639static int 640build_mcfg(struct vmctx *const ctx) 641{ 642 ACPI_TABLE_MCFG mcfg; 643 ACPI_MCFG_ALLOCATION mcfg_allocation; 644 struct basl_table *table; 645 646 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_MCFG, 647 BASL_TABLE_ALIGNMENT)); 648 649 memset(&mcfg, 0, sizeof(mcfg)); 650 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_MCFG, 1, 1)); 651 BASL_EXEC(basl_table_append_content(table, &mcfg, sizeof(mcfg))); 652 653 memset(&mcfg_allocation, 0, sizeof(mcfg_allocation)); 654 mcfg_allocation.Address = htole64(pci_ecfg_base()); 655 mcfg_allocation.EndBusNumber = 0xFF; 656 BASL_EXEC(basl_table_append_bytes(table, &mcfg_allocation, 657 sizeof(mcfg_allocation))); 658 659 BASL_EXEC(basl_table_register_to_rsdt(table)); 660 661 return (0); 662} 663 664static int 665build_rsdp(struct vmctx *const ctx) 666{ 667 ACPI_TABLE_RSDP rsdp; 668 struct basl_table *table; 669 670 BASL_EXEC(basl_table_create(&table, ctx, ACPI_RSDP_NAME, 671 BASL_TABLE_ALIGNMENT)); 672 673 memset(&rsdp, 0, sizeof(rsdp)); 674 memcpy(rsdp.Signature, ACPI_SIG_RSDP, 8); 675 rsdp.Checksum = 0; /* patched by basl */ 676 memcpy(rsdp.OemId, "BHYVE ", ACPI_OEM_ID_SIZE); 677 rsdp.Revision = 2; 678 rsdp.RsdtPhysicalAddress = htole32(0); /* patched by basl */ 679 rsdp.Length = htole32(0); /* patched by basl */ 680 rsdp.XsdtPhysicalAddress = htole64(0); /* patched by basl */ 681 rsdp.ExtendedChecksum = 0; /* patched by basl */ 682 BASL_EXEC(basl_table_append_bytes(table, &rsdp, sizeof(rsdp))); 683 684 BASL_EXEC(basl_table_add_checksum(table, 685 offsetof(ACPI_TABLE_RSDP, Checksum), 0, 20)); 686 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_RSDT, 687 offsetof(ACPI_TABLE_RSDP, RsdtPhysicalAddress), 688 sizeof(rsdp.RsdtPhysicalAddress))); 689 BASL_EXEC(basl_table_add_length(table, 690 offsetof(ACPI_TABLE_RSDP, Length), sizeof(rsdp.Length))); 691 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_XSDT, 692 offsetof(ACPI_TABLE_RSDP, XsdtPhysicalAddress), 693 sizeof(rsdp.XsdtPhysicalAddress))); 694 BASL_EXEC(basl_table_add_checksum(table, 695 offsetof(ACPI_TABLE_RSDP, ExtendedChecksum), 0, 696 BASL_TABLE_CHECKSUM_LEN_FULL_TABLE)); 697 698 return (0); 699} 700 701static int 702build_spcr(struct vmctx *const ctx) 703{ 704 ACPI_TABLE_SPCR spcr; 705 struct basl_table *table; 706 707 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_SPCR, 708 BASL_TABLE_ALIGNMENT)); 709 710 memset(&spcr, 0, sizeof(spcr)); 711 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_SPCR, 1, 1)); 712 spcr.InterfaceType = ACPI_DBG2_16550_COMPATIBLE; 713 basl_fill_gas(&spcr.SerialPort, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 714 ACPI_GAS_ACCESS_WIDTH_LEGACY, 0x3F8); 715 spcr.InterruptType = ACPI_SPCR_INTERRUPT_TYPE_8259; 716 spcr.PcInterrupt = 4; 717 spcr.BaudRate = ACPI_SPCR_BAUD_RATE_115200; 718 spcr.Parity = ACPI_SPCR_PARITY_NO_PARITY; 719 spcr.StopBits = ACPI_SPCR_STOP_BITS_1; 720 spcr.FlowControl = 3; /* RTS/CTS | DCD */ 721 spcr.TerminalType = ACPI_SPCR_TERMINAL_TYPE_VT_UTF8; 722 BASL_EXEC(basl_table_append_content(table, &spcr, sizeof(spcr))); 723 724 BASL_EXEC(basl_table_register_to_rsdt(table)); 725 726 return (0); 727} 728 729int 730acpi_build(struct vmctx *ctx, int ncpu) 731{ 732 basl_ncpu = ncpu; 733 734 /* 735 * For debug, allow the user to have iasl compiler output sent 736 * to stdout rather than /dev/null 737 */ 738 if (getenv("BHYVE_ACPI_VERBOSE_IASL")) 739 basl_verbose_iasl = 1; 740 741 /* 742 * Allow the user to keep the generated ASL files for debugging 743 * instead of deleting them following use 744 */ 745 if (getenv("BHYVE_ACPI_KEEPTMPS")) 746 basl_keep_temps = 1; 747 748 BASL_EXEC(basl_init(ctx)); 749 750 BASL_EXEC(basl_make_templates()); 751 752 /* 753 * Generate ACPI tables and copy them into guest memory. 754 * 755 * According to UEFI Specification v6.3 chapter 5.1 the FADT should be 756 * the first table pointed to by XSDT. For that reason, build it as the 757 * first table after XSDT. 758 */ 759 BASL_EXEC(build_rsdp(ctx)); 760 BASL_EXEC(build_fadt(ctx)); 761 BASL_EXEC(build_madt(ctx)); 762#ifdef __amd64__ 763 BASL_EXEC(build_hpet(ctx)); 764#endif 765 BASL_EXEC(build_mcfg(ctx)); 766 BASL_EXEC(build_facs(ctx)); 767 BASL_EXEC(build_spcr(ctx)); 768 769 /* Build ACPI device-specific tables such as a TPM2 table. */ 770 const struct acpi_device_list_entry *entry; 771 SLIST_FOREACH(entry, &acpi_devices, chain) { 772 BASL_EXEC(acpi_device_build_table(entry->dev)); 773 } 774 775 BASL_EXEC(build_dsdt(ctx)); 776 777 BASL_EXEC(basl_finish()); 778 779 return (0); 780} 781