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