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 70 static int basl_keep_temps; 71 static int basl_verbose_iasl; 72 static int basl_ncpu; 73 74 /* 75 * Contains the full pathname of the template to be passed 76 * to mkstemp/mktemps(3) 77 */ 78 static char basl_template[MAXPATHLEN]; 79 static char basl_stemplate[MAXPATHLEN]; 80 81 /* 82 * State for dsdt_line(), dsdt_indent(), and dsdt_unindent(). 83 */ 84 static FILE *dsdt_fp; 85 static int dsdt_indent_level; 86 static int dsdt_error; 87 88 struct 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 */ 103 struct acpi_device_list_entry { 104 SLIST_ENTRY(acpi_device_list_entry) chain; 105 const struct acpi_device *dev; 106 }; 107 static SLIST_HEAD(acpi_device_list, 108 acpi_device_list_entry) acpi_devices = SLIST_HEAD_INITIALIZER(acpi_devices); 109 110 int 111 acpi_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 */ 127 void 128 dsdt_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; 147 148 err_exit: 149 dsdt_error = errno; 150 } 151 152 void 153 dsdt_indent(int levels) 154 { 155 156 dsdt_indent_level += levels; 157 assert(dsdt_indent_level >= 0); 158 } 159 160 void 161 dsdt_unindent(int levels) 162 { 163 164 assert(dsdt_indent_level >= levels); 165 dsdt_indent_level -= levels; 166 } 167 168 void 169 dsdt_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 } 179 180 void 181 dsdt_fixed_irq(uint8_t irq) 182 { 183 184 dsdt_line("IRQNoFlags ()"); 185 dsdt_line(" {%d}", irq); 186 } 187 188 void 189 dsdt_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 } 197 198 static int 199 basl_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); 252 253 err_exit: 254 return (errno); 255 } 256 257 static int 258 basl_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 } 284 285 static void 286 basl_close(struct basl_fio *bf) 287 { 288 289 if (!basl_keep_temps) 290 unlink(bf->f_name); 291 fclose(bf->fp); 292 } 293 294 static int 295 basl_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 } 309 310 static void 311 basl_end(struct basl_fio *in, struct basl_fio *out) 312 { 313 314 basl_close(in); 315 basl_close(out); 316 } 317 318 static int 319 basl_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 (EFAULT); 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 return (0); 342 } 343 344 static int 345 basl_compile(struct vmctx *ctx, int (*fwrite_section)(FILE *)) 346 { 347 struct basl_fio io[2]; 348 static char iaslbuf[3*MAXPATHLEN + 10]; 349 const char *fmt; 350 int err; 351 352 err = basl_start(&io[0], &io[1]); 353 if (!err) { 354 err = (*fwrite_section)(io[0].fp); 355 356 if (!err) { 357 /* 358 * iasl sends the results of the compilation to 359 * stdout. Shut this down by using the shell to 360 * redirect stdout to /dev/null, unless the user 361 * has requested verbose output for debugging 362 * purposes 363 */ 364 fmt = basl_verbose_iasl ? 365 "%s -p %s %s" : 366 "/bin/sh -c \"%s -p %s %s\" 1> /dev/null"; 367 368 snprintf(iaslbuf, sizeof(iaslbuf), 369 fmt, 370 BHYVE_ASL_COMPILER, 371 io[1].f_name, io[0].f_name); 372 err = system(iaslbuf); 373 374 if (!err) { 375 /* 376 * Copy the aml output file into guest 377 * memory at the specified location 378 */ 379 err = basl_load(ctx, io[1].fd); 380 } 381 } 382 basl_end(&io[0], &io[1]); 383 } 384 385 return (err); 386 } 387 388 static int 389 basl_make_templates(void) 390 { 391 const char *tmpdir; 392 int err; 393 int len; 394 395 err = 0; 396 397 /* 398 * 399 */ 400 if ((tmpdir = getenv("BHYVE_TMPDIR")) == NULL || *tmpdir == '\0' || 401 (tmpdir = getenv("TMPDIR")) == NULL || *tmpdir == '\0') { 402 tmpdir = _PATH_TMP; 403 } 404 405 len = strlen(tmpdir); 406 407 if ((len + sizeof(BHYVE_ASL_TEMPLATE) + 1) < MAXPATHLEN) { 408 strcpy(basl_template, tmpdir); 409 while (len > 0 && basl_template[len - 1] == '/') 410 len--; 411 basl_template[len] = '/'; 412 strcpy(&basl_template[len + 1], BHYVE_ASL_TEMPLATE); 413 } else 414 err = E2BIG; 415 416 if (!err) { 417 /* 418 * len has been initialized (and maybe adjusted) above 419 */ 420 if ((len + sizeof(BHYVE_ASL_TEMPLATE) + 1 + 421 sizeof(BHYVE_ASL_SUFFIX)) < MAXPATHLEN) { 422 strcpy(basl_stemplate, tmpdir); 423 basl_stemplate[len] = '/'; 424 strcpy(&basl_stemplate[len + 1], BHYVE_ASL_TEMPLATE); 425 len = strlen(basl_stemplate); 426 strcpy(&basl_stemplate[len], BHYVE_ASL_SUFFIX); 427 } else 428 err = E2BIG; 429 } 430 431 return (err); 432 } 433 434 static int 435 build_dsdt(struct vmctx *const ctx) 436 { 437 BASL_EXEC(basl_compile(ctx, basl_fwrite_dsdt)); 438 439 return (0); 440 } 441 442 static int 443 build_facs(struct vmctx *const ctx) 444 { 445 ACPI_TABLE_FACS facs; 446 struct basl_table *table; 447 448 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_FACS, 449 BASL_TABLE_ALIGNMENT_FACS)); 450 451 memset(&facs, 0, sizeof(facs)); 452 memcpy(facs.Signature, ACPI_SIG_FACS, ACPI_NAMESEG_SIZE); 453 facs.Length = sizeof(facs); 454 facs.Version = htole32(2); 455 BASL_EXEC(basl_table_append_bytes(table, &facs, sizeof(facs))); 456 457 return (0); 458 } 459 460 static int 461 build_fadt(struct vmctx *const ctx) 462 { 463 ACPI_TABLE_FADT fadt; 464 struct basl_table *table; 465 466 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_FADT, 467 BASL_TABLE_ALIGNMENT)); 468 469 memset(&fadt, 0, sizeof(fadt)); 470 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_FADT, 5, 1)); 471 fadt.Facs = htole32(0); /* patched by basl */ 472 fadt.Dsdt = htole32(0); /* patched by basl */ 473 fadt.SciInterrupt = htole16(SCI_INT); 474 fadt.SmiCommand = htole32(SMI_CMD); 475 fadt.AcpiEnable = BHYVE_ACPI_ENABLE; 476 fadt.AcpiDisable = BHYVE_ACPI_DISABLE; 477 fadt.Pm1aEventBlock = htole32(PM1A_EVT_ADDR); 478 fadt.Pm1aControlBlock = htole32(PM1A_CNT_ADDR); 479 fadt.PmTimerBlock = htole32(IO_PMTMR); 480 fadt.Gpe0Block = htole32(IO_GPE0_BLK); 481 fadt.Pm1EventLength = 4; 482 fadt.Pm1ControlLength = 2; 483 fadt.PmTimerLength = 4; 484 fadt.Gpe0BlockLength = IO_GPE0_LEN; 485 fadt.Century = 0x32; 486 fadt.BootFlags = htole16(ACPI_FADT_NO_VGA | ACPI_FADT_NO_ASPM); 487 fadt.Flags = htole32(ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | 488 ACPI_FADT_SLEEP_BUTTON | ACPI_FADT_32BIT_TIMER | 489 ACPI_FADT_RESET_REGISTER | ACPI_FADT_HEADLESS | 490 ACPI_FADT_APIC_PHYSICAL); 491 basl_fill_gas(&fadt.ResetRegister, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 492 ACPI_GAS_ACCESS_WIDTH_BYTE, 0xCF9); 493 fadt.ResetValue = 6; 494 fadt.MinorRevision = 1; 495 fadt.XFacs = htole64(0); /* patched by basl */ 496 fadt.XDsdt = htole64(0); /* patched by basl */ 497 basl_fill_gas(&fadt.XPm1aEventBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0x20, 0, 498 ACPI_GAS_ACCESS_WIDTH_WORD, PM1A_EVT_ADDR); 499 basl_fill_gas(&fadt.XPm1bEventBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0, 0, 500 ACPI_GAS_ACCESS_WIDTH_UNDEFINED, 0); 501 basl_fill_gas(&fadt.XPm1aControlBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0x10, 502 0, ACPI_GAS_ACCESS_WIDTH_WORD, PM1A_CNT_ADDR); 503 basl_fill_gas(&fadt.XPm1bControlBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0, 0, 504 ACPI_GAS_ACCESS_WIDTH_UNDEFINED, 0); 505 basl_fill_gas(&fadt.XPm2ControlBlock, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 506 ACPI_GAS_ACCESS_WIDTH_UNDEFINED, 0); 507 basl_fill_gas(&fadt.XPmTimerBlock, ACPI_ADR_SPACE_SYSTEM_IO, 0x20, 0, 508 ACPI_GAS_ACCESS_WIDTH_DWORD, IO_PMTMR); 509 basl_fill_gas(&fadt.XGpe0Block, ACPI_ADR_SPACE_SYSTEM_IO, 510 IO_GPE0_LEN * 8, 0, ACPI_GAS_ACCESS_WIDTH_BYTE, IO_GPE0_BLK); 511 basl_fill_gas(&fadt.XGpe1Block, ACPI_ADR_SPACE_SYSTEM_IO, 0, 0, 512 ACPI_GAS_ACCESS_WIDTH_UNDEFINED, 0); 513 basl_fill_gas(&fadt.SleepControl, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 514 ACPI_GAS_ACCESS_WIDTH_BYTE, 0); 515 basl_fill_gas(&fadt.SleepStatus, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 516 ACPI_GAS_ACCESS_WIDTH_BYTE, 0); 517 BASL_EXEC(basl_table_append_content(table, &fadt, sizeof(fadt))); 518 519 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_FACS, 520 offsetof(ACPI_TABLE_FADT, Facs), sizeof(fadt.Facs))); 521 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_DSDT, 522 offsetof(ACPI_TABLE_FADT, Dsdt), sizeof(fadt.Dsdt))); 523 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_FACS, 524 offsetof(ACPI_TABLE_FADT, XFacs), sizeof(fadt.XFacs))); 525 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_DSDT, 526 offsetof(ACPI_TABLE_FADT, XDsdt), sizeof(fadt.XDsdt))); 527 528 BASL_EXEC(basl_table_register_to_rsdt(table)); 529 530 return (0); 531 } 532 533 #ifdef __amd64__ 534 static int 535 build_hpet(struct vmctx *const ctx) 536 { 537 ACPI_TABLE_HPET hpet; 538 struct basl_table *table; 539 uint32_t hpet_capabilities; 540 int err; 541 542 err = vm_get_hpet_capabilities(ctx, &hpet_capabilities); 543 if (err != 0) 544 return (err); 545 546 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_HPET, 547 BASL_TABLE_ALIGNMENT)); 548 549 memset(&hpet, 0, sizeof(hpet)); 550 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_HPET, 1, 1)); 551 hpet.Id = htole32(hpet_capabilities); 552 basl_fill_gas(&hpet.Address, ACPI_ADR_SPACE_SYSTEM_MEMORY, 0, 0, 553 ACPI_GAS_ACCESS_WIDTH_LEGACY, BHYVE_ADDRESS_HPET); 554 hpet.Flags = ACPI_HPET_PAGE_PROTECT4; 555 BASL_EXEC(basl_table_append_content(table, &hpet, sizeof(hpet))); 556 557 BASL_EXEC(basl_table_register_to_rsdt(table)); 558 559 return (0); 560 } 561 #endif 562 563 static int 564 build_madt(struct vmctx *const ctx) 565 { 566 ACPI_TABLE_MADT madt; 567 ACPI_MADT_LOCAL_APIC madt_lapic; 568 ACPI_MADT_IO_APIC madt_ioapic; 569 ACPI_MADT_INTERRUPT_OVERRIDE madt_irq_override; 570 ACPI_MADT_LOCAL_APIC_NMI madt_lapic_nmi; 571 struct basl_table *table; 572 573 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_MADT, 574 BASL_TABLE_ALIGNMENT)); 575 576 memset(&madt, 0, sizeof(madt)); 577 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_MADT, 1, 1)); 578 madt.Address = htole32(BHYVE_ADDRESS_LAPIC); 579 madt.Flags = htole32(ACPI_MADT_PCAT_COMPAT); 580 BASL_EXEC(basl_table_append_content(table, &madt, sizeof(madt))); 581 582 /* Local APIC for each CPU */ 583 for (int i = 0; i < basl_ncpu; ++i) { 584 memset(&madt_lapic, 0, sizeof(madt_lapic)); 585 madt_lapic.Header.Type = ACPI_MADT_TYPE_LOCAL_APIC; 586 madt_lapic.Header.Length = sizeof(madt_lapic); 587 madt_lapic.ProcessorId = i; 588 madt_lapic.Id = i; 589 madt_lapic.LapicFlags = htole32(ACPI_MADT_ENABLED); 590 BASL_EXEC(basl_table_append_bytes(table, &madt_lapic, 591 sizeof(madt_lapic))); 592 } 593 594 /* I/O APIC */ 595 memset(&madt_ioapic, 0, sizeof(madt_ioapic)); 596 madt_ioapic.Header.Type = ACPI_MADT_TYPE_IO_APIC; 597 madt_ioapic.Header.Length = sizeof(madt_ioapic); 598 madt_ioapic.Address = htole32(BHYVE_ADDRESS_IOAPIC); 599 BASL_EXEC( 600 basl_table_append_bytes(table, &madt_ioapic, sizeof(madt_ioapic))); 601 602 /* Legacy IRQ0 is connected to pin 2 of the I/O APIC */ 603 memset(&madt_irq_override, 0, sizeof(madt_irq_override)); 604 madt_irq_override.Header.Type = ACPI_MADT_TYPE_INTERRUPT_OVERRIDE; 605 madt_irq_override.Header.Length = sizeof(madt_irq_override); 606 madt_irq_override.GlobalIrq = htole32(2); 607 madt_irq_override.IntiFlags = htole16( 608 ACPI_MADT_POLARITY_ACTIVE_HIGH | ACPI_MADT_TRIGGER_EDGE); 609 BASL_EXEC(basl_table_append_bytes(table, &madt_irq_override, 610 sizeof(madt_irq_override))); 611 612 memset(&madt_irq_override, 0, sizeof(madt_irq_override)); 613 madt_irq_override.Header.Type = ACPI_MADT_TYPE_INTERRUPT_OVERRIDE; 614 madt_irq_override.Header.Length = sizeof(madt_irq_override); 615 madt_irq_override.SourceIrq = SCI_INT; 616 madt_irq_override.GlobalIrq = htole32(SCI_INT); 617 madt_irq_override.IntiFlags = htole16( 618 ACPI_MADT_POLARITY_ACTIVE_LOW | ACPI_MADT_TRIGGER_LEVEL); 619 BASL_EXEC(basl_table_append_bytes(table, &madt_irq_override, 620 sizeof(madt_irq_override))); 621 622 /* Local APIC NMI is conntected to LINT 1 on all CPUs */ 623 memset(&madt_lapic_nmi, 0, sizeof(madt_lapic_nmi)); 624 madt_lapic_nmi.Header.Type = ACPI_MADT_TYPE_LOCAL_APIC_NMI; 625 madt_lapic_nmi.Header.Length = sizeof(madt_lapic_nmi); 626 madt_lapic_nmi.ProcessorId = 0xFF; 627 madt_lapic_nmi.IntiFlags = htole16( 628 ACPI_MADT_POLARITY_ACTIVE_HIGH | ACPI_MADT_TRIGGER_EDGE); 629 madt_lapic_nmi.Lint = 1; 630 BASL_EXEC(basl_table_append_bytes(table, &madt_lapic_nmi, 631 sizeof(madt_lapic_nmi))); 632 633 BASL_EXEC(basl_table_register_to_rsdt(table)); 634 635 return (0); 636 } 637 638 static int 639 build_mcfg(struct vmctx *const ctx) 640 { 641 ACPI_TABLE_MCFG mcfg; 642 ACPI_MCFG_ALLOCATION mcfg_allocation; 643 struct basl_table *table; 644 645 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_MCFG, 646 BASL_TABLE_ALIGNMENT)); 647 648 memset(&mcfg, 0, sizeof(mcfg)); 649 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_MCFG, 1, 1)); 650 BASL_EXEC(basl_table_append_content(table, &mcfg, sizeof(mcfg))); 651 652 memset(&mcfg_allocation, 0, sizeof(mcfg_allocation)); 653 mcfg_allocation.Address = htole64(pci_ecfg_base()); 654 mcfg_allocation.EndBusNumber = 0xFF; 655 BASL_EXEC(basl_table_append_bytes(table, &mcfg_allocation, 656 sizeof(mcfg_allocation))); 657 658 BASL_EXEC(basl_table_register_to_rsdt(table)); 659 660 return (0); 661 } 662 663 static int 664 build_rsdp(struct vmctx *const ctx) 665 { 666 ACPI_TABLE_RSDP rsdp; 667 struct basl_table *table; 668 669 BASL_EXEC(basl_table_create(&table, ctx, ACPI_RSDP_NAME, 670 BASL_TABLE_ALIGNMENT)); 671 672 memset(&rsdp, 0, sizeof(rsdp)); 673 memcpy(rsdp.Signature, ACPI_SIG_RSDP, 8); 674 rsdp.Checksum = 0; /* patched by basl */ 675 memcpy(rsdp.OemId, "BHYVE ", ACPI_OEM_ID_SIZE); 676 rsdp.Revision = 2; 677 rsdp.RsdtPhysicalAddress = htole32(0); /* patched by basl */ 678 rsdp.Length = htole32(0); /* patched by basl */ 679 rsdp.XsdtPhysicalAddress = htole64(0); /* patched by basl */ 680 rsdp.ExtendedChecksum = 0; /* patched by basl */ 681 BASL_EXEC(basl_table_append_bytes(table, &rsdp, sizeof(rsdp))); 682 683 BASL_EXEC(basl_table_add_checksum(table, 684 offsetof(ACPI_TABLE_RSDP, Checksum), 0, 20)); 685 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_RSDT, 686 offsetof(ACPI_TABLE_RSDP, RsdtPhysicalAddress), 687 sizeof(rsdp.RsdtPhysicalAddress))); 688 BASL_EXEC(basl_table_add_length(table, 689 offsetof(ACPI_TABLE_RSDP, Length), sizeof(rsdp.Length))); 690 BASL_EXEC(basl_table_add_pointer(table, ACPI_SIG_XSDT, 691 offsetof(ACPI_TABLE_RSDP, XsdtPhysicalAddress), 692 sizeof(rsdp.XsdtPhysicalAddress))); 693 BASL_EXEC(basl_table_add_checksum(table, 694 offsetof(ACPI_TABLE_RSDP, ExtendedChecksum), 0, 695 BASL_TABLE_CHECKSUM_LEN_FULL_TABLE)); 696 697 return (0); 698 } 699 700 static int 701 build_spcr(struct vmctx *const ctx) 702 { 703 ACPI_TABLE_SPCR spcr; 704 struct basl_table *table; 705 706 BASL_EXEC(basl_table_create(&table, ctx, ACPI_SIG_SPCR, 707 BASL_TABLE_ALIGNMENT)); 708 709 memset(&spcr, 0, sizeof(spcr)); 710 BASL_EXEC(basl_table_append_header(table, ACPI_SIG_SPCR, 1, 1)); 711 spcr.InterfaceType = ACPI_DBG2_16550_COMPATIBLE; 712 basl_fill_gas(&spcr.SerialPort, ACPI_ADR_SPACE_SYSTEM_IO, 8, 0, 713 ACPI_GAS_ACCESS_WIDTH_LEGACY, 0x3F8); 714 spcr.InterruptType = ACPI_SPCR_INTERRUPT_TYPE_8259; 715 spcr.PcInterrupt = 4; 716 spcr.BaudRate = ACPI_SPCR_BAUD_RATE_115200; 717 spcr.Parity = ACPI_SPCR_PARITY_NO_PARITY; 718 spcr.StopBits = ACPI_SPCR_STOP_BITS_1; 719 spcr.FlowControl = 3; /* RTS/CTS | DCD */ 720 spcr.TerminalType = ACPI_SPCR_TERMINAL_TYPE_VT_UTF8; 721 BASL_EXEC(basl_table_append_content(table, &spcr, sizeof(spcr))); 722 723 BASL_EXEC(basl_table_register_to_rsdt(table)); 724 725 return (0); 726 } 727 728 int 729 acpi_build(struct vmctx *ctx, int ncpu) 730 { 731 basl_ncpu = ncpu; 732 733 /* 734 * For debug, allow the user to have iasl compiler output sent 735 * to stdout rather than /dev/null 736 */ 737 if (getenv("BHYVE_ACPI_VERBOSE_IASL")) 738 basl_verbose_iasl = 1; 739 740 /* 741 * Allow the user to keep the generated ASL files for debugging 742 * instead of deleting them following use 743 */ 744 if (getenv("BHYVE_ACPI_KEEPTMPS")) 745 basl_keep_temps = 1; 746 747 BASL_EXEC(basl_init(ctx)); 748 749 BASL_EXEC(basl_make_templates()); 750 751 /* 752 * Generate ACPI tables and copy them into guest memory. 753 * 754 * According to UEFI Specification v6.3 chapter 5.1 the FADT should be 755 * the first table pointed to by XSDT. For that reason, build it as the 756 * first table after XSDT. 757 */ 758 BASL_EXEC(build_rsdp(ctx)); 759 BASL_EXEC(build_fadt(ctx)); 760 BASL_EXEC(build_madt(ctx)); 761 #ifdef __amd64__ 762 BASL_EXEC(build_hpet(ctx)); 763 #endif 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