1///////////////////////////////////////////////////////////////////////// 2// $Id$ 3///////////////////////////////////////////////////////////////////////// 4// 5// 32 bit Bochs BIOS init code 6// Copyright (C) 2006 Fabrice Bellard 7// 8// This library is free software; you can redistribute it and/or 9// modify it under the terms of the GNU Lesser General Public 10// License as published by the Free Software Foundation; either 11// version 2 of the License, or (at your option) any later version. 12// 13// This library is distributed in the hope that it will be useful, 14// but WITHOUT ANY WARRANTY; without even the implied warranty of 15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16// Lesser General Public License for more details. 17// 18// You should have received a copy of the GNU Lesser General Public 19// License along with this library; if not, write to the Free Software 20// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21#include <stdarg.h> 22#include <stddef.h> 23 24#include "rombios.h" 25 26typedef signed char int8_t; 27typedef short int16_t; 28typedef int int32_t; 29typedef long long int64_t; 30typedef unsigned char uint8_t; 31typedef unsigned short uint16_t; 32typedef unsigned int uint32_t; 33typedef unsigned long long uint64_t; 34 35/* if true, put the MP float table and ACPI RSDT in EBDA and the MP 36 table in RAM. Unfortunately, Linux has bugs with that, so we prefer 37 to modify the BIOS in shadow RAM */ 38//#define BX_USE_EBDA_TABLES 39 40/* define it if the (emulated) hardware supports SMM mode */ 41#define BX_USE_SMM 42 43#define cpuid(index, eax, ebx, ecx, edx) \ 44 asm volatile ("cpuid" \ 45 : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) \ 46 : "0" (index)) 47 48#define wbinvd() asm volatile("wbinvd") 49 50#define CPUID_MSR (1 << 5) 51#define CPUID_APIC (1 << 9) 52#define CPUID_MTRR (1 << 12) 53 54#define APIC_BASE ((uint8_t *)0xfee00000) 55#define APIC_ICR_LOW 0x300 56#define APIC_SVR 0x0F0 57#define APIC_ID 0x020 58#define APIC_LVT3 0x370 59 60#define APIC_ENABLED 0x0100 61 62#define AP_BOOT_ADDR 0x9f000 63 64#define MPTABLE_MAX_SIZE 0x00002000 65#define SMI_CMD_IO_ADDR 0xb2 66 67#define BIOS_TMP_STORAGE 0x00030000 /* 64 KB used to copy the BIOS to shadow RAM */ 68 69#define MSR_MTRRcap 0x000000fe 70#define MSR_MTRRfix64K_00000 0x00000250 71#define MSR_MTRRfix16K_80000 0x00000258 72#define MSR_MTRRfix16K_A0000 0x00000259 73#define MSR_MTRRfix4K_C0000 0x00000268 74#define MSR_MTRRfix4K_C8000 0x00000269 75#define MSR_MTRRfix4K_D0000 0x0000026a 76#define MSR_MTRRfix4K_D8000 0x0000026b 77#define MSR_MTRRfix4K_E0000 0x0000026c 78#define MSR_MTRRfix4K_E8000 0x0000026d 79#define MSR_MTRRfix4K_F0000 0x0000026e 80#define MSR_MTRRfix4K_F8000 0x0000026f 81#define MSR_MTRRdefType 0x000002ff 82 83#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg)) 84#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1) 85 86static inline void outl(int addr, int val) 87{ 88 asm volatile ("outl %1, %w0" : : "d" (addr), "a" (val)); 89} 90 91static inline void outw(int addr, int val) 92{ 93 asm volatile ("outw %w1, %w0" : : "d" (addr), "a" (val)); 94} 95 96static inline void outb(int addr, int val) 97{ 98 asm volatile ("outb %b1, %w0" : : "d" (addr), "a" (val)); 99} 100 101static inline uint32_t inl(int addr) 102{ 103 uint32_t val; 104 asm volatile ("inl %w1, %0" : "=a" (val) : "d" (addr)); 105 return val; 106} 107 108static inline uint16_t inw(int addr) 109{ 110 uint16_t val; 111 asm volatile ("inw %w1, %w0" : "=a" (val) : "d" (addr)); 112 return val; 113} 114 115static inline uint8_t inb(int addr) 116{ 117 uint8_t val; 118 asm volatile ("inb %w1, %b0" : "=a" (val) : "d" (addr)); 119 return val; 120} 121 122static inline void writel(void *addr, uint32_t val) 123{ 124 *(volatile uint32_t *)addr = val; 125} 126 127static inline void writew(void *addr, uint16_t val) 128{ 129 *(volatile uint16_t *)addr = val; 130} 131 132static inline void writeb(void *addr, uint8_t val) 133{ 134 *(volatile uint8_t *)addr = val; 135} 136 137static inline uint32_t readl(const void *addr) 138{ 139 return *(volatile const uint32_t *)addr; 140} 141 142static inline uint16_t readw(const void *addr) 143{ 144 return *(volatile const uint16_t *)addr; 145} 146 147static inline uint8_t readb(const void *addr) 148{ 149 return *(volatile const uint8_t *)addr; 150} 151 152static inline void putc(int c) 153{ 154 outb(INFO_PORT, c); 155} 156 157static uint64_t rdmsr(unsigned index) 158{ 159 unsigned long long ret; 160 161 asm ("rdmsr" : "=A"(ret) : "c"(index)); 162 return ret; 163} 164 165static void wrmsr(unsigned index, uint64_t val) 166{ 167 asm volatile ("wrmsr" : : "c"(index), "A"(val)); 168} 169 170static inline int isdigit(int c) 171{ 172 return c >= '0' && c <= '9'; 173} 174 175void *memset(void *d1, int val, size_t len) 176{ 177 uint8_t *d = d1; 178 179 while (len--) { 180 *d++ = val; 181 } 182 return d1; 183} 184 185void *memcpy(void *d1, const void *s1, size_t len) 186{ 187 uint8_t *d = d1; 188 const uint8_t *s = s1; 189 190 while (len--) { 191 *d++ = *s++; 192 } 193 return d1; 194} 195 196void *memmove(void *d1, const void *s1, size_t len) 197{ 198 uint8_t *d = d1; 199 const uint8_t *s = s1; 200 201 if (d <= s) { 202 while (len--) { 203 *d++ = *s++; 204 } 205 } else { 206 d += len; 207 s += len; 208 while (len--) { 209 *--d = *--s; 210 } 211 } 212 return d1; 213} 214 215int memcmp(const void *s1, const void *s2, size_t len) 216{ 217 const int8_t *p1 = s1; 218 const int8_t *p2 = s2; 219 220 while (len--) { 221 int r = *p1++ - *p2++; 222 if(r) 223 return r; 224 } 225 226 return 0; 227} 228 229size_t strlen(const char *s) 230{ 231 const char *s1; 232 for(s1 = s; *s1 != '\0'; s1++); 233 return s1 - s; 234} 235 236/* from BSD ppp sources */ 237int vsnprintf(char *buf, int buflen, const char *fmt, va_list args) 238{ 239 int c, i, n; 240 int width, prec, fillch; 241 int base, len, neg; 242 unsigned long val = 0; 243 const char *f; 244 char *str, *buf0; 245 char num[32]; 246 static const char hexchars[] = "0123456789abcdef"; 247 248 buf0 = buf; 249 --buflen; 250 while (buflen > 0) { 251 for (f = fmt; *f != '%' && *f != 0; ++f) 252 ; 253 if (f > fmt) { 254 len = f - fmt; 255 if (len > buflen) 256 len = buflen; 257 memcpy(buf, fmt, len); 258 buf += len; 259 buflen -= len; 260 fmt = f; 261 } 262 if (*fmt == 0) 263 break; 264 c = *++fmt; 265 width = prec = 0; 266 fillch = ' '; 267 if (c == '0') { 268 fillch = '0'; 269 c = *++fmt; 270 } 271 if (c == '*') { 272 width = va_arg(args, int); 273 c = *++fmt; 274 } else { 275 while (isdigit(c)) { 276 width = width * 10 + c - '0'; 277 c = *++fmt; 278 } 279 } 280 if (c == '.') { 281 c = *++fmt; 282 if (c == '*') { 283 prec = va_arg(args, int); 284 c = *++fmt; 285 } else { 286 while (isdigit(c)) { 287 prec = prec * 10 + c - '0'; 288 c = *++fmt; 289 } 290 } 291 } 292 /* modifiers */ 293 switch(c) { 294 case 'l': 295 c = *++fmt; 296 break; 297 default: 298 break; 299 } 300 str = 0; 301 base = 0; 302 neg = 0; 303 ++fmt; 304 switch (c) { 305 case 'd': 306 i = va_arg(args, int); 307 if (i < 0) { 308 neg = 1; 309 val = -i; 310 } else 311 val = i; 312 base = 10; 313 break; 314 case 'o': 315 val = va_arg(args, unsigned int); 316 base = 8; 317 break; 318 case 'x': 319 case 'X': 320 val = va_arg(args, unsigned int); 321 base = 16; 322 break; 323 case 'p': 324 val = (unsigned long) va_arg(args, void *); 325 base = 16; 326 neg = 2; 327 break; 328 case 's': 329 str = va_arg(args, char *); 330 break; 331 case 'c': 332 num[0] = va_arg(args, int); 333 num[1] = 0; 334 str = num; 335 break; 336 default: 337 *buf++ = '%'; 338 if (c != '%') 339 --fmt; /* so %z outputs %z etc. */ 340 --buflen; 341 continue; 342 } 343 if (base != 0) { 344 str = num + sizeof(num); 345 *--str = 0; 346 while (str > num + neg) { 347 *--str = hexchars[val % base]; 348 val = val / base; 349 if (--prec <= 0 && val == 0) 350 break; 351 } 352 switch (neg) { 353 case 1: 354 *--str = '-'; 355 break; 356 case 2: 357 *--str = 'x'; 358 *--str = '0'; 359 break; 360 } 361 len = num + sizeof(num) - 1 - str; 362 } else { 363 len = strlen(str); 364 if (prec > 0 && len > prec) 365 len = prec; 366 } 367 if (width > 0) { 368 if (width > buflen) 369 width = buflen; 370 if ((n = width - len) > 0) { 371 buflen -= n; 372 for (; n > 0; --n) 373 *buf++ = fillch; 374 } 375 } 376 if (len > buflen) 377 len = buflen; 378 memcpy(buf, str, len); 379 buf += len; 380 buflen -= len; 381 } 382 *buf = 0; 383 return buf - buf0; 384} 385 386int snprintf(char * buf, size_t size, const char *fmt, ...) 387{ 388 va_list args; 389 int i; 390 391 va_start(args, fmt); 392 i=vsnprintf(buf,size,fmt,args); 393 va_end(args); 394 return i; 395} 396 397void bios_printf(int flags, const char *fmt, ...) 398{ 399 va_list ap; 400 char buf[1024]; 401 const char *s; 402 403 if ((flags & BIOS_PRINTF_DEBHALT) == BIOS_PRINTF_DEBHALT) 404 outb(PANIC_PORT2, 0x00); 405 406 va_start(ap, fmt); 407 vsnprintf(buf, sizeof(buf), fmt, ap); 408 s = buf; 409 while (*s) 410 putc(*s++); 411 va_end(ap); 412} 413 414void delay_ms(int n) 415{ 416 int i, j; 417 for(i = 0; i < n; i++) { 418#ifdef BX_QEMU 419 /* approximative ! */ 420 for(j = 0; j < 1000000; j++); 421#else 422 { 423 int r1, r2; 424 j = 66; 425 r1 = inb(0x61) & 0x10; 426 do { 427 r2 = inb(0x61) & 0x10; 428 if (r1 != r2) { 429 j--; 430 r1 = r2; 431 } 432 } while (j > 0); 433 } 434#endif 435 } 436} 437 438uint16_t smp_cpus; 439uint32_t cpuid_signature; 440uint32_t cpuid_features; 441uint32_t cpuid_ext_features; 442unsigned long ram_size; 443uint64_t ram_end; 444#ifdef BX_USE_EBDA_TABLES 445unsigned long ebda_cur_addr; 446#endif 447int acpi_enabled; 448uint32_t pm_io_base, smb_io_base; 449int pm_sci_int; 450unsigned long bios_table_cur_addr; 451unsigned long bios_table_end_addr; 452 453static inline uint64_t le64_to_cpu(uint64_t x) 454{ 455 return x; 456} 457 458void wrmsr_smp(uint32_t index, uint64_t val) 459{ 460 static struct { uint32_t ecx, eax, edx; } *p = (void *)SMP_MSR_ADDR; 461 462 wrmsr(index, val); 463 p->ecx = index; 464 p->eax = val; 465 p->edx = val >> 32; 466 ++p; 467 p->ecx = 0; 468} 469 470#ifdef BX_QEMU 471#define QEMU_CFG_CTL_PORT 0x510 472#define QEMU_CFG_DATA_PORT 0x511 473#define QEMU_CFG_SIGNATURE 0x00 474#define QEMU_CFG_ID 0x01 475#define QEMU_CFG_UUID 0x02 476#define QEMU_CFG_NUMA 0x0D 477#define QEMU_CFG_ARCH_LOCAL 0x8000 478#define QEMU_CFG_ACPI_TABLES (QEMU_CFG_ARCH_LOCAL + 0) 479#define QEMU_CFG_SMBIOS_ENTRIES (QEMU_CFG_ARCH_LOCAL + 1) 480 481int qemu_cfg_port; 482 483void qemu_cfg_select(int f) 484{ 485 outw(QEMU_CFG_CTL_PORT, f); 486} 487 488int qemu_cfg_port_probe() 489{ 490 char *sig = "QEMU"; 491 int i; 492 493 qemu_cfg_select(QEMU_CFG_SIGNATURE); 494 495 for (i = 0; i < 4; i++) 496 if (inb(QEMU_CFG_DATA_PORT) != sig[i]) 497 return 0; 498 499 return 1; 500} 501 502void qemu_cfg_read(uint8_t *buf, int len) 503{ 504 while (len--) 505 *(buf++) = inb(QEMU_CFG_DATA_PORT); 506} 507 508static uint16_t acpi_additional_tables(void) 509{ 510 uint16_t cnt; 511 512 qemu_cfg_select(QEMU_CFG_ACPI_TABLES); 513 qemu_cfg_read((uint8_t*)&cnt, sizeof(cnt)); 514 515 return cnt; 516} 517 518static int acpi_load_table(int i, uint32_t addr, uint16_t *len) 519{ 520 qemu_cfg_read((uint8_t*)len, sizeof(*len)); 521 522 if (!*len) 523 return -1; 524 525 qemu_cfg_read((uint8_t*)addr, *len); 526 return 0; 527} 528 529static uint16_t smbios_entries(void) 530{ 531 uint16_t cnt; 532 533 qemu_cfg_select(QEMU_CFG_SMBIOS_ENTRIES); 534 qemu_cfg_read((uint8_t*)&cnt, sizeof(cnt)); 535 536 return cnt; 537} 538 539uint64_t qemu_cfg_get64 (void) 540{ 541 uint64_t ret; 542 543 qemu_cfg_read((uint8_t*)&ret, 8); 544 return le64_to_cpu(ret); 545} 546#endif 547 548void cpu_probe(void) 549{ 550 uint32_t eax, ebx, ecx, edx; 551 cpuid(1, eax, ebx, ecx, edx); 552 cpuid_signature = eax; 553 cpuid_features = edx; 554 cpuid_ext_features = ecx; 555} 556 557static int cmos_readb(int addr) 558{ 559 outb(0x70, addr); 560 return inb(0x71); 561} 562 563void setup_mtrr(void) 564{ 565 int i, vcnt, fix, wc; 566 uint32_t mtrr_cap; 567 union { 568 uint8_t valb[8]; 569 uint64_t val; 570 } u; 571 572 *(uint32_t *)SMP_MSR_ADDR = 0; 573 574 if (!(cpuid_features & CPUID_MTRR)) 575 return; 576 577 if (!(cpuid_features & CPUID_MSR)) 578 return; 579 580 mtrr_cap = rdmsr(MSR_MTRRcap); 581 vcnt = mtrr_cap & 0xff; 582 fix = mtrr_cap & 0x100; 583 wc = mtrr_cap & 0x400; 584 if (!vcnt || !fix) 585 return; 586 587 u.val = 0; 588 for (i = 0; i < 8; ++i) 589 if (ram_size >= 65536 * (i + 1)) 590 u.valb[i] = 6; 591 wrmsr_smp(MSR_MTRRfix64K_00000, u.val); 592 u.val = 0; 593 for (i = 0; i < 8; ++i) 594 if (ram_size >= 65536 * 8 + 16384 * (i + 1)) 595 u.valb[i] = 6; 596 wrmsr_smp(MSR_MTRRfix16K_80000, u.val); 597 wrmsr_smp(MSR_MTRRfix16K_A0000, 0); 598 wrmsr_smp(MSR_MTRRfix4K_C0000, 0); 599 wrmsr_smp(MSR_MTRRfix4K_C8000, 0); 600 wrmsr_smp(MSR_MTRRfix4K_D0000, 0); 601 wrmsr_smp(MSR_MTRRfix4K_D8000, 0); 602 wrmsr_smp(MSR_MTRRfix4K_E0000, 0); 603 wrmsr_smp(MSR_MTRRfix4K_E8000, 0); 604 wrmsr_smp(MSR_MTRRfix4K_F0000, 0); 605 wrmsr_smp(MSR_MTRRfix4K_F8000, 0); 606 /* Mark 3.5-4GB as UC, anything not specified defaults to WB */ 607 wrmsr_smp(MTRRphysBase_MSR(0), 0xe0000000ull | 0); 608 wrmsr_smp(MTRRphysMask_MSR(0), ~(0x20000000ull - 1) | 0x800); 609 wrmsr_smp(MSR_MTRRdefType, 0xc06); 610} 611 612void ram_probe(void) 613{ 614 if (cmos_readb(0x34) | cmos_readb(0x35)) 615 ram_size = (cmos_readb(0x34) | (cmos_readb(0x35) << 8)) * 65536 + 616 16 * 1024 * 1024; 617 else 618 ram_size = (cmos_readb(0x30) | (cmos_readb(0x31) << 8)) * 1024 + 619 1 * 1024 * 1024; 620 BX_INFO("ram_size=0x%08lx\n", ram_size); 621 if (cmos_readb(0x5b) | cmos_readb(0x5c) | cmos_readb(0x5d)) 622 ram_end = (((uint64_t)cmos_readb(0x5b) << 16) | 623 ((uint64_t)cmos_readb(0x5c) << 24) | 624 ((uint64_t)cmos_readb(0x5d) << 32)) + (1ull << 32); 625 else 626 ram_end = ram_size; 627 BX_INFO("end of ram=%ldMB\n", ram_end >> 20); 628#ifdef BX_USE_EBDA_TABLES 629 ebda_cur_addr = ((*(uint16_t *)(0x40e)) << 4) + 0x380; 630 BX_INFO("ebda_cur_addr: 0x%08lx\n", ebda_cur_addr); 631#endif 632} 633 634/****************************************************/ 635/* SMP probe */ 636 637extern uint8_t smp_ap_boot_code_start; 638extern uint8_t smp_ap_boot_code_end; 639 640/* find the number of CPUs by launching a SIPI to them */ 641void smp_probe(void) 642{ 643 uint32_t val, sipi_vector; 644 645 writew(&smp_cpus, 1); 646 if (cpuid_features & CPUID_APIC) { 647 648 /* enable local APIC */ 649 val = readl(APIC_BASE + APIC_SVR); 650 val |= APIC_ENABLED; 651 writel(APIC_BASE + APIC_SVR, val); 652 653 /* copy AP boot code */ 654 memcpy((void *)AP_BOOT_ADDR, &smp_ap_boot_code_start, 655 &smp_ap_boot_code_end - &smp_ap_boot_code_start); 656 657 /* broadcast SIPI */ 658 writel(APIC_BASE + APIC_ICR_LOW, 0x000C4500); 659 sipi_vector = AP_BOOT_ADDR >> 12; 660 writel(APIC_BASE + APIC_ICR_LOW, 0x000C4600 | sipi_vector); 661 662#ifndef BX_QEMU 663 delay_ms(10); 664#else 665 while (cmos_readb(0x5f) + 1 != readw(&smp_cpus)) 666 ; 667#endif 668 } 669 BX_INFO("Found %d cpu(s)\n", readw(&smp_cpus)); 670} 671 672/****************************************************/ 673/* PCI init */ 674 675#define PCI_ADDRESS_SPACE_MEM 0x00 676#define PCI_ADDRESS_SPACE_IO 0x01 677#define PCI_ADDRESS_SPACE_MEM_PREFETCH 0x08 678 679#define PCI_ROM_SLOT 6 680#define PCI_NUM_REGIONS 7 681 682#define PCI_DEVICES_MAX 64 683 684#define PCI_VENDOR_ID 0x00 /* 16 bits */ 685#define PCI_DEVICE_ID 0x02 /* 16 bits */ 686#define PCI_COMMAND 0x04 /* 16 bits */ 687#define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */ 688#define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */ 689#define PCI_CLASS_DEVICE 0x0a /* Device class */ 690#define PCI_INTERRUPT_LINE 0x3c /* 8 bits */ 691#define PCI_INTERRUPT_PIN 0x3d /* 8 bits */ 692#define PCI_MIN_GNT 0x3e /* 8 bits */ 693#define PCI_MAX_LAT 0x3f /* 8 bits */ 694 695#define PCI_VENDOR_ID_INTEL 0x8086 696#define PCI_DEVICE_ID_INTEL_82441 0x1237 697#define PCI_DEVICE_ID_INTEL_82371SB_0 0x7000 698#define PCI_DEVICE_ID_INTEL_82371SB_1 0x7010 699#define PCI_DEVICE_ID_INTEL_82371AB_0 0x7110 700#define PCI_DEVICE_ID_INTEL_82371AB 0x7111 701#define PCI_DEVICE_ID_INTEL_82371AB_3 0x7113 702 703#define PCI_VENDOR_ID_IBM 0x1014 704#define PCI_VENDOR_ID_APPLE 0x106b 705 706typedef struct PCIDevice { 707 int bus; 708 int devfn; 709} PCIDevice; 710 711static uint32_t pci_bios_io_addr; 712static uint32_t pci_bios_mem_addr; 713static uint32_t pci_bios_bigmem_addr; 714/* host irqs corresponding to PCI irqs A-D */ 715static uint8_t pci_irqs[4] = { 11, 9, 11, 9 }; 716static PCIDevice i440_pcidev; 717 718static void pci_config_writel(PCIDevice *d, uint32_t addr, uint32_t val) 719{ 720 outl(0xcf8, 0x80000000 | (d->bus << 16) | (d->devfn << 8) | (addr & 0xfc)); 721 outl(0xcfc, val); 722} 723 724static void pci_config_writew(PCIDevice *d, uint32_t addr, uint32_t val) 725{ 726 outl(0xcf8, 0x80000000 | (d->bus << 16) | (d->devfn << 8) | (addr & 0xfc)); 727 outw(0xcfc + (addr & 2), val); 728} 729 730static void pci_config_writeb(PCIDevice *d, uint32_t addr, uint32_t val) 731{ 732 outl(0xcf8, 0x80000000 | (d->bus << 16) | (d->devfn << 8) | (addr & 0xfc)); 733 outb(0xcfc + (addr & 3), val); 734} 735 736static uint32_t pci_config_readl(PCIDevice *d, uint32_t addr) 737{ 738 outl(0xcf8, 0x80000000 | (d->bus << 16) | (d->devfn << 8) | (addr & 0xfc)); 739 return inl(0xcfc); 740} 741 742static uint32_t pci_config_readw(PCIDevice *d, uint32_t addr) 743{ 744 outl(0xcf8, 0x80000000 | (d->bus << 16) | (d->devfn << 8) | (addr & 0xfc)); 745 return inw(0xcfc + (addr & 2)); 746} 747 748static uint32_t pci_config_readb(PCIDevice *d, uint32_t addr) 749{ 750 outl(0xcf8, 0x80000000 | (d->bus << 16) | (d->devfn << 8) | (addr & 0xfc)); 751 return inb(0xcfc + (addr & 3)); 752} 753 754static void pci_set_io_region_addr(PCIDevice *d, int region_num, uint32_t addr) 755{ 756 uint16_t cmd; 757 uint32_t ofs, old_addr; 758 759 if ( region_num == PCI_ROM_SLOT ) { 760 ofs = 0x30; 761 }else{ 762 ofs = 0x10 + region_num * 4; 763 } 764 765 old_addr = pci_config_readl(d, ofs); 766 767 pci_config_writel(d, ofs, addr); 768 BX_INFO("region %d: 0x%08x\n", region_num, addr); 769 770 /* enable memory mappings */ 771 cmd = pci_config_readw(d, PCI_COMMAND); 772 if ( region_num == PCI_ROM_SLOT ) 773 cmd |= 2; 774 else if (old_addr & PCI_ADDRESS_SPACE_IO) 775 cmd |= 1; 776 else 777 cmd |= 2; 778 pci_config_writew(d, PCI_COMMAND, cmd); 779} 780 781/* return the global irq number corresponding to a given device irq 782 pin. We could also use the bus number to have a more precise 783 mapping. */ 784static int pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num) 785{ 786 int slot_addend; 787 slot_addend = (pci_dev->devfn >> 3) - 1; 788 return (irq_num + slot_addend) & 3; 789} 790 791static void find_bios_table_area(void) 792{ 793 unsigned long addr; 794 for(addr = 0xf0000; addr < 0x100000; addr += 16) { 795 if (*(uint32_t *)addr == 0xaafb4442) { 796 bios_table_cur_addr = addr + 8; 797 bios_table_end_addr = bios_table_cur_addr + *(uint32_t *)(addr + 4); 798 BX_INFO("bios_table_addr: 0x%08lx end=0x%08lx\n", 799 bios_table_cur_addr, bios_table_end_addr); 800 return; 801 } 802 } 803 return; 804} 805 806static void bios_shadow_init(PCIDevice *d) 807{ 808 int v; 809 810 if (bios_table_cur_addr == 0) 811 return; 812 813 /* remap the BIOS to shadow RAM an keep it read/write while we 814 are writing tables */ 815 v = pci_config_readb(d, 0x59); 816 v &= 0xcf; 817 pci_config_writeb(d, 0x59, v); 818 memcpy((void *)BIOS_TMP_STORAGE, (void *)0x000f0000, 0x10000); 819 v |= 0x30; 820 pci_config_writeb(d, 0x59, v); 821 memcpy((void *)0x000f0000, (void *)BIOS_TMP_STORAGE, 0x10000); 822 823 i440_pcidev = *d; 824} 825 826static void bios_lock_shadow_ram(void) 827{ 828 PCIDevice *d = &i440_pcidev; 829 int v; 830 831 wbinvd(); 832 v = pci_config_readb(d, 0x59); 833 v = (v & 0x0f) | (0x10); 834 pci_config_writeb(d, 0x59, v); 835} 836 837static void pci_bios_init_bridges(PCIDevice *d) 838{ 839 uint16_t vendor_id, device_id; 840 841 vendor_id = pci_config_readw(d, PCI_VENDOR_ID); 842 device_id = pci_config_readw(d, PCI_DEVICE_ID); 843 844 if (vendor_id == PCI_VENDOR_ID_INTEL && 845 (device_id == PCI_DEVICE_ID_INTEL_82371SB_0 || 846 device_id == PCI_DEVICE_ID_INTEL_82371AB_0)) { 847 int i, irq; 848 uint8_t elcr[2]; 849 850 /* PIIX3/PIIX4 PCI to ISA bridge */ 851 852 elcr[0] = 0x00; 853 elcr[1] = 0x00; 854 for(i = 0; i < 4; i++) { 855 irq = pci_irqs[i]; 856 /* set to trigger level */ 857 elcr[irq >> 3] |= (1 << (irq & 7)); 858 /* activate irq remapping in PIIX */ 859 pci_config_writeb(d, 0x60 + i, irq); 860 } 861 outb(0x4d0, elcr[0]); 862 outb(0x4d1, elcr[1]); 863 BX_INFO("PIIX3/PIIX4 init: elcr=%02x %02x\n", 864 elcr[0], elcr[1]); 865 } else if (vendor_id == PCI_VENDOR_ID_INTEL && device_id == PCI_DEVICE_ID_INTEL_82441) { 866 /* i440 PCI bridge */ 867 bios_shadow_init(d); 868 } 869} 870 871extern uint8_t smm_relocation_start, smm_relocation_end; 872extern uint8_t smm_code_start, smm_code_end; 873 874#ifdef BX_USE_SMM 875static void smm_init(PCIDevice *d) 876{ 877 uint32_t value; 878 879 /* check if SMM init is already done */ 880 value = pci_config_readl(d, 0x58); 881 if ((value & (1 << 25)) == 0) { 882 883 /* enable the SMM memory window */ 884 pci_config_writeb(&i440_pcidev, 0x72, 0x02 | 0x48); 885 886 /* save original memory content */ 887 memcpy((void *)0xa8000, (void *)0x38000, 0x8000); 888 889 /* copy the SMM relocation code */ 890 memcpy((void *)0x38000, &smm_relocation_start, 891 &smm_relocation_end - &smm_relocation_start); 892 893 /* enable SMI generation when writing to the APMC register */ 894 pci_config_writel(d, 0x58, value | (1 << 25)); 895 896 /* init APM status port */ 897 outb(0xb3, 0x01); 898 899 /* raise an SMI interrupt */ 900 outb(0xb2, 0x00); 901 902 /* wait until SMM code executed */ 903 while (inb(0xb3) != 0x00); 904 905 /* restore original memory content */ 906 memcpy((void *)0x38000, (void *)0xa8000, 0x8000); 907 908 /* copy the SMM code */ 909 memcpy((void *)0xa8000, &smm_code_start, 910 &smm_code_end - &smm_code_start); 911 wbinvd(); 912 913 /* close the SMM memory window and enable normal SMM */ 914 pci_config_writeb(&i440_pcidev, 0x72, 0x02 | 0x08); 915 } 916} 917#endif 918 919static void piix4_pm_enable(PCIDevice *d) 920{ 921 /* PIIX4 Power Management device (for ACPI) */ 922 pci_config_writel(d, 0x40, PM_IO_BASE | 1); 923 pci_config_writeb(d, 0x80, 0x01); /* enable PM io space */ 924 pci_config_writel(d, 0x90, SMB_IO_BASE | 1); 925 pci_config_writeb(d, 0xd2, 0x09); /* enable SMBus io space */ 926#ifdef BX_USE_SMM 927 smm_init(d); 928#endif 929} 930 931static void pci_bios_init_device(PCIDevice *d) 932{ 933 int class; 934 uint32_t *paddr; 935 int i, pin, pic_irq, vendor_id, device_id; 936 937 class = pci_config_readw(d, PCI_CLASS_DEVICE); 938 vendor_id = pci_config_readw(d, PCI_VENDOR_ID); 939 device_id = pci_config_readw(d, PCI_DEVICE_ID); 940 BX_INFO("PCI: bus=%d devfn=0x%02x: vendor_id=0x%04x device_id=0x%04x class=0x%04x\n", 941 d->bus, d->devfn, vendor_id, device_id, class); 942 switch(class) { 943 case 0x0101: /* Mass storage controller - IDE interface */ 944 if (vendor_id == PCI_VENDOR_ID_INTEL && 945 (device_id == PCI_DEVICE_ID_INTEL_82371SB_1 || 946 device_id == PCI_DEVICE_ID_INTEL_82371AB)) { 947 /* PIIX3/PIIX4 IDE */ 948 pci_config_writew(d, 0x40, 0x8000); // enable IDE0 949 pci_config_writew(d, 0x42, 0x8000); // enable IDE1 950 goto default_map; 951 } else { 952 /* IDE: we map it as in ISA mode */ 953 pci_set_io_region_addr(d, 0, 0x1f0); 954 pci_set_io_region_addr(d, 1, 0x3f4); 955 pci_set_io_region_addr(d, 2, 0x170); 956 pci_set_io_region_addr(d, 3, 0x374); 957 } 958 break; 959 case 0x0300: /* Display controller - VGA compatible controller */ 960 if (vendor_id != 0x1234) 961 goto default_map; 962 /* VGA: map frame buffer to default Bochs VBE address */ 963 pci_set_io_region_addr(d, 0, 0xE0000000); 964 break; 965 case 0x0800: /* Generic system peripheral - PIC */ 966 if (vendor_id == PCI_VENDOR_ID_IBM) { 967 /* IBM */ 968 if (device_id == 0x0046 || device_id == 0xFFFF) { 969 /* MPIC & MPIC2 */ 970 pci_set_io_region_addr(d, 0, 0x80800000 + 0x00040000); 971 } 972 } 973 break; 974 case 0xff00: 975 if (vendor_id == PCI_VENDOR_ID_APPLE && 976 (device_id == 0x0017 || device_id == 0x0022)) { 977 /* macio bridge */ 978 pci_set_io_region_addr(d, 0, 0x80800000); 979 } 980 break; 981 default: 982 default_map: 983 /* default memory mappings */ 984 for(i = 0; i < PCI_NUM_REGIONS; i++) { 985 int ofs; 986 uint32_t val, size ; 987 988 if (i == PCI_ROM_SLOT) { 989 ofs = 0x30; 990 pci_config_writel(d, ofs, 0xfffffffe); 991 } else { 992 ofs = 0x10 + i * 4; 993 pci_config_writel(d, ofs, 0xffffffff); 994 } 995 val = pci_config_readl(d, ofs); 996 if (val != 0) { 997 size = (~(val & ~0xf)) + 1; 998 if (val & PCI_ADDRESS_SPACE_IO) 999 paddr = &pci_bios_io_addr; 1000 else if (size >= 0x04000000) 1001 paddr = &pci_bios_bigmem_addr; 1002 else 1003 paddr = &pci_bios_mem_addr; 1004 *paddr = (*paddr + size - 1) & ~(size - 1); 1005 pci_set_io_region_addr(d, i, *paddr); 1006 *paddr += size; 1007 } 1008 } 1009 break; 1010 } 1011 1012 /* map the interrupt */ 1013 pin = pci_config_readb(d, PCI_INTERRUPT_PIN); 1014 if (pin != 0) { 1015 pin = pci_slot_get_pirq(d, pin - 1); 1016 pic_irq = pci_irqs[pin]; 1017 pci_config_writeb(d, PCI_INTERRUPT_LINE, pic_irq); 1018 } 1019 1020 if (vendor_id == PCI_VENDOR_ID_INTEL && device_id == PCI_DEVICE_ID_INTEL_82371AB_3) { 1021 /* PIIX4 Power Management device (for ACPI) */ 1022 pm_io_base = PM_IO_BASE; 1023 smb_io_base = SMB_IO_BASE; 1024 // acpi sci is hardwired to 9 1025 pci_config_writeb(d, PCI_INTERRUPT_LINE, 9); 1026 pm_sci_int = pci_config_readb(d, PCI_INTERRUPT_LINE); 1027 piix4_pm_enable(d); 1028 acpi_enabled = 1; 1029 } 1030} 1031 1032void pci_for_each_device(void (*init_func)(PCIDevice *d)) 1033{ 1034 PCIDevice d1, *d = &d1; 1035 int bus, devfn; 1036 uint16_t vendor_id, device_id; 1037 1038 for(bus = 0; bus < 1; bus++) { 1039 for(devfn = 0; devfn < 256; devfn++) { 1040 d->bus = bus; 1041 d->devfn = devfn; 1042 vendor_id = pci_config_readw(d, PCI_VENDOR_ID); 1043 device_id = pci_config_readw(d, PCI_DEVICE_ID); 1044 if (vendor_id != 0xffff || device_id != 0xffff) { 1045 init_func(d); 1046 } 1047 } 1048 } 1049} 1050 1051void pci_bios_init(void) 1052{ 1053 pci_bios_io_addr = 0xc000; 1054 pci_bios_mem_addr = 0xf0000000; 1055 pci_bios_bigmem_addr = ram_size; 1056 if (pci_bios_bigmem_addr < 0x90000000) 1057 pci_bios_bigmem_addr = 0x90000000; 1058 1059 pci_for_each_device(pci_bios_init_bridges); 1060 1061 pci_for_each_device(pci_bios_init_device); 1062} 1063 1064/****************************************************/ 1065/* Multi Processor table init */ 1066 1067static void putb(uint8_t **pp, int val) 1068{ 1069 uint8_t *q; 1070 q = *pp; 1071 *q++ = val; 1072 *pp = q; 1073} 1074 1075static void putstr(uint8_t **pp, const char *str) 1076{ 1077 uint8_t *q; 1078 q = *pp; 1079 while (*str) 1080 *q++ = *str++; 1081 *pp = q; 1082} 1083 1084static void putle16(uint8_t **pp, int val) 1085{ 1086 uint8_t *q; 1087 q = *pp; 1088 *q++ = val; 1089 *q++ = val >> 8; 1090 *pp = q; 1091} 1092 1093static void putle32(uint8_t **pp, int val) 1094{ 1095 uint8_t *q; 1096 q = *pp; 1097 *q++ = val; 1098 *q++ = val >> 8; 1099 *q++ = val >> 16; 1100 *q++ = val >> 24; 1101 *pp = q; 1102} 1103 1104static int mpf_checksum(const uint8_t *data, int len) 1105{ 1106 int sum, i; 1107 sum = 0; 1108 for(i = 0; i < len; i++) 1109 sum += data[i]; 1110 return sum & 0xff; 1111} 1112 1113static unsigned long align(unsigned long addr, unsigned long v) 1114{ 1115 return (addr + v - 1) & ~(v - 1); 1116} 1117 1118static void mptable_init(void) 1119{ 1120 uint8_t *mp_config_table, *q, *float_pointer_struct; 1121 int ioapic_id, i, len; 1122 int mp_config_table_size; 1123 1124#ifdef BX_USE_EBDA_TABLES 1125 mp_config_table = (uint8_t *)(ram_size - ACPI_DATA_SIZE - MPTABLE_MAX_SIZE); 1126#else 1127 bios_table_cur_addr = align(bios_table_cur_addr, 16); 1128 mp_config_table = (uint8_t *)bios_table_cur_addr; 1129#endif 1130 q = mp_config_table; 1131 putstr(&q, "PCMP"); /* "PCMP signature */ 1132 putle16(&q, 0); /* table length (patched later) */ 1133 putb(&q, 4); /* spec rev */ 1134 putb(&q, 0); /* checksum (patched later) */ 1135#ifdef BX_QEMU 1136 putstr(&q, "QEMUCPU "); /* OEM id */ 1137#else 1138 putstr(&q, "BOCHSCPU"); 1139#endif 1140 putstr(&q, "0.1 "); /* vendor id */ 1141 putle32(&q, 0); /* OEM table ptr */ 1142 putle16(&q, 0); /* OEM table size */ 1143 putle16(&q, smp_cpus + 18); /* entry count */ 1144 putle32(&q, 0xfee00000); /* local APIC addr */ 1145 putle16(&q, 0); /* ext table length */ 1146 putb(&q, 0); /* ext table checksum */ 1147 putb(&q, 0); /* reserved */ 1148 1149 for(i = 0; i < smp_cpus; i++) { 1150 putb(&q, 0); /* entry type = processor */ 1151 putb(&q, i); /* APIC id */ 1152 putb(&q, 0x11); /* local APIC version number */ 1153 if (i == 0) 1154 putb(&q, 3); /* cpu flags: enabled, bootstrap cpu */ 1155 else 1156 putb(&q, 1); /* cpu flags: enabled */ 1157 putb(&q, 0); /* cpu signature */ 1158 putb(&q, 6); 1159 putb(&q, 0); 1160 putb(&q, 0); 1161 putle16(&q, 0x201); /* feature flags */ 1162 putle16(&q, 0); 1163 1164 putle16(&q, 0); /* reserved */ 1165 putle16(&q, 0); 1166 putle16(&q, 0); 1167 putle16(&q, 0); 1168 } 1169 1170 /* isa bus */ 1171 putb(&q, 1); /* entry type = bus */ 1172 putb(&q, 0); /* bus ID */ 1173 putstr(&q, "ISA "); 1174 1175 /* ioapic */ 1176 ioapic_id = smp_cpus; 1177 putb(&q, 2); /* entry type = I/O APIC */ 1178 putb(&q, ioapic_id); /* apic ID */ 1179 putb(&q, 0x11); /* I/O APIC version number */ 1180 putb(&q, 1); /* enable */ 1181 putle32(&q, 0xfec00000); /* I/O APIC addr */ 1182 1183 /* irqs */ 1184 for(i = 0; i < 32; i++) { 1185#ifdef BX_QEMU 1186 /* One entry per ioapic input. Input 2 is covered by 1187 irq0->inti2 override (i == 0). irq 2 is unused */ 1188 if (i == 2) 1189 continue; 1190#endif 1191 putb(&q, 3); /* entry type = I/O interrupt */ 1192 putb(&q, 0); /* interrupt type = vectored interrupt */ 1193 putb(&q, 0); /* flags: po=0, el=0 */ 1194 putb(&q, 0); 1195 putb(&q, 0); /* source bus ID = ISA */ 1196 putb(&q, i); /* source bus IRQ */ 1197 putb(&q, ioapic_id); /* dest I/O APIC ID */ 1198#ifdef BX_QEMU 1199 putb(&q, i == 0 ? 2 : i); /* dest I/O APIC interrupt in */ 1200#else 1201 putb(&q, i); /* dest I/O APIC interrupt in */ 1202#endif 1203 } 1204 /* patch length */ 1205 len = q - mp_config_table; 1206 mp_config_table[4] = len; 1207 mp_config_table[5] = len >> 8; 1208 1209 mp_config_table[7] = -mpf_checksum(mp_config_table, q - mp_config_table); 1210 1211 mp_config_table_size = q - mp_config_table; 1212 1213#ifndef BX_USE_EBDA_TABLES 1214 bios_table_cur_addr += mp_config_table_size; 1215#endif 1216 1217 /* floating pointer structure */ 1218#ifdef BX_USE_EBDA_TABLES 1219 ebda_cur_addr = align(ebda_cur_addr, 16); 1220 float_pointer_struct = (uint8_t *)ebda_cur_addr; 1221#else 1222 bios_table_cur_addr = align(bios_table_cur_addr, 16); 1223 float_pointer_struct = (uint8_t *)bios_table_cur_addr; 1224#endif 1225 q = float_pointer_struct; 1226 putstr(&q, "_MP_"); 1227 /* pointer to MP config table */ 1228 putle32(&q, (unsigned long)mp_config_table); 1229 1230 putb(&q, 1); /* length in 16 byte units */ 1231 putb(&q, 4); /* MP spec revision */ 1232 putb(&q, 0); /* checksum (patched later) */ 1233 putb(&q, 0); /* MP feature byte 1 */ 1234 1235 putb(&q, 0); 1236 putb(&q, 0); 1237 putb(&q, 0); 1238 putb(&q, 0); 1239 float_pointer_struct[10] = 1240 -mpf_checksum(float_pointer_struct, q - float_pointer_struct); 1241#ifdef BX_USE_EBDA_TABLES 1242 ebda_cur_addr += (q - float_pointer_struct); 1243#else 1244 bios_table_cur_addr += (q - float_pointer_struct); 1245#endif 1246 BX_INFO("MP table addr=0x%08lx MPC table addr=0x%08lx size=0x%x\n", 1247 (unsigned long)float_pointer_struct, 1248 (unsigned long)mp_config_table, 1249 mp_config_table_size); 1250} 1251 1252/****************************************************/ 1253/* ACPI tables init */ 1254 1255/* Table structure from Linux kernel (the ACPI tables are under the 1256 BSD license) */ 1257 1258/* 1259 * All tables must be byte-packed to match the ACPI specification, since 1260 * the tables are provided by the system BIOS. 1261 */ 1262 1263#define ACPI_TABLE_HEADER_DEF /* ACPI common table header */ \ 1264 uint8_t signature [4]; /* ACPI signature (4 ASCII characters) */\ 1265 uint32_t length; /* Length of table, in bytes, including header */\ 1266 uint8_t revision; /* ACPI Specification minor version # */\ 1267 uint8_t checksum; /* To make sum of entire table == 0 */\ 1268 uint8_t oem_id [6]; /* OEM identification */\ 1269 uint8_t oem_table_id [8]; /* OEM table identification */\ 1270 uint32_t oem_revision; /* OEM revision number */\ 1271 uint8_t asl_compiler_id [4]; /* ASL compiler vendor ID */\ 1272 uint32_t asl_compiler_revision; /* ASL compiler revision number */ 1273 1274 1275struct acpi_table_header /* ACPI common table header */ 1276{ 1277 ACPI_TABLE_HEADER_DEF 1278} __attribute__((__packed__)); 1279 1280struct rsdp_descriptor /* Root System Descriptor Pointer */ 1281{ 1282 uint8_t signature [8]; /* ACPI signature, contains "RSD PTR " */ 1283 uint8_t checksum; /* To make sum of struct == 0 */ 1284 uint8_t oem_id [6]; /* OEM identification */ 1285 uint8_t revision; /* Must be 0 for 1.0, 2 for 2.0 */ 1286 uint32_t rsdt_physical_address; /* 32-bit physical address of RSDT */ 1287 uint32_t length; /* XSDT Length in bytes including hdr */ 1288 uint64_t xsdt_physical_address; /* 64-bit physical address of XSDT */ 1289 uint8_t extended_checksum; /* Checksum of entire table */ 1290 uint8_t reserved [3]; /* Reserved field must be 0 */ 1291} __attribute__((__packed__)); 1292 1293/* 1294 * ACPI 1.0 Root System Description Table (RSDT) 1295 */ 1296struct rsdt_descriptor_rev1 1297{ 1298 ACPI_TABLE_HEADER_DEF /* ACPI common table header */ 1299#ifdef BX_QEMU 1300 uint32_t table_offset_entry [5]; /* Array of pointers to other */ 1301#else 1302 uint32_t table_offset_entry [3]; /* Array of pointers to other */ 1303#endif 1304 /* ACPI tables */ 1305} __attribute__((__packed__)); 1306 1307/* 1308 * ACPI 1.0 Firmware ACPI Control Structure (FACS) 1309 */ 1310struct facs_descriptor_rev1 1311{ 1312 uint8_t signature[4]; /* ACPI Signature */ 1313 uint32_t length; /* Length of structure, in bytes */ 1314 uint32_t hardware_signature; /* Hardware configuration signature */ 1315 uint32_t firmware_waking_vector; /* ACPI OS waking vector */ 1316 uint32_t global_lock; /* Global Lock */ 1317 uint32_t S4bios_f : 1; /* Indicates if S4BIOS support is present */ 1318 uint32_t reserved1 : 31; /* Must be 0 */ 1319 uint8_t resverved3 [40]; /* Reserved - must be zero */ 1320} __attribute__((__packed__)); 1321 1322 1323/* 1324 * ACPI 1.0 Fixed ACPI Description Table (FADT) 1325 */ 1326struct fadt_descriptor_rev1 1327{ 1328 ACPI_TABLE_HEADER_DEF /* ACPI common table header */ 1329 uint32_t firmware_ctrl; /* Physical address of FACS */ 1330 uint32_t dsdt; /* Physical address of DSDT */ 1331 uint8_t model; /* System Interrupt Model */ 1332 uint8_t reserved1; /* Reserved */ 1333 uint16_t sci_int; /* System vector of SCI interrupt */ 1334 uint32_t smi_cmd; /* Port address of SMI command port */ 1335 uint8_t acpi_enable; /* Value to write to smi_cmd to enable ACPI */ 1336 uint8_t acpi_disable; /* Value to write to smi_cmd to disable ACPI */ 1337 uint8_t S4bios_req; /* Value to write to SMI CMD to enter S4BIOS state */ 1338 uint8_t reserved2; /* Reserved - must be zero */ 1339 uint32_t pm1a_evt_blk; /* Port address of Power Mgt 1a acpi_event Reg Blk */ 1340 uint32_t pm1b_evt_blk; /* Port address of Power Mgt 1b acpi_event Reg Blk */ 1341 uint32_t pm1a_cnt_blk; /* Port address of Power Mgt 1a Control Reg Blk */ 1342 uint32_t pm1b_cnt_blk; /* Port address of Power Mgt 1b Control Reg Blk */ 1343 uint32_t pm2_cnt_blk; /* Port address of Power Mgt 2 Control Reg Blk */ 1344 uint32_t pm_tmr_blk; /* Port address of Power Mgt Timer Ctrl Reg Blk */ 1345 uint32_t gpe0_blk; /* Port addr of General Purpose acpi_event 0 Reg Blk */ 1346 uint32_t gpe1_blk; /* Port addr of General Purpose acpi_event 1 Reg Blk */ 1347 uint8_t pm1_evt_len; /* Byte length of ports at pm1_x_evt_blk */ 1348 uint8_t pm1_cnt_len; /* Byte length of ports at pm1_x_cnt_blk */ 1349 uint8_t pm2_cnt_len; /* Byte Length of ports at pm2_cnt_blk */ 1350 uint8_t pm_tmr_len; /* Byte Length of ports at pm_tm_blk */ 1351 uint8_t gpe0_blk_len; /* Byte Length of ports at gpe0_blk */ 1352 uint8_t gpe1_blk_len; /* Byte Length of ports at gpe1_blk */ 1353 uint8_t gpe1_base; /* Offset in gpe model where gpe1 events start */ 1354 uint8_t reserved3; /* Reserved */ 1355 uint16_t plvl2_lat; /* Worst case HW latency to enter/exit C2 state */ 1356 uint16_t plvl3_lat; /* Worst case HW latency to enter/exit C3 state */ 1357 uint16_t flush_size; /* Size of area read to flush caches */ 1358 uint16_t flush_stride; /* Stride used in flushing caches */ 1359 uint8_t duty_offset; /* Bit location of duty cycle field in p_cnt reg */ 1360 uint8_t duty_width; /* Bit width of duty cycle field in p_cnt reg */ 1361 uint8_t day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */ 1362 uint8_t mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */ 1363 uint8_t century; /* Index to century in RTC CMOS RAM */ 1364 uint8_t reserved4; /* Reserved */ 1365 uint8_t reserved4a; /* Reserved */ 1366 uint8_t reserved4b; /* Reserved */ 1367#if 0 1368 uint32_t wb_invd : 1; /* The wbinvd instruction works properly */ 1369 uint32_t wb_invd_flush : 1; /* The wbinvd flushes but does not invalidate */ 1370 uint32_t proc_c1 : 1; /* All processors support C1 state */ 1371 uint32_t plvl2_up : 1; /* C2 state works on MP system */ 1372 uint32_t pwr_button : 1; /* Power button is handled as a generic feature */ 1373 uint32_t sleep_button : 1; /* Sleep button is handled as a generic feature, or not present */ 1374 uint32_t fixed_rTC : 1; /* RTC wakeup stat not in fixed register space */ 1375 uint32_t rtcs4 : 1; /* RTC wakeup stat not possible from S4 */ 1376 uint32_t tmr_val_ext : 1; /* The tmr_val width is 32 bits (0 = 24 bits) */ 1377 uint32_t reserved5 : 23; /* Reserved - must be zero */ 1378#else 1379 uint32_t flags; 1380#endif 1381} __attribute__((__packed__)); 1382 1383/* 1384 * MADT values and structures 1385 */ 1386 1387/* Values for MADT PCATCompat */ 1388 1389#define DUAL_PIC 0 1390#define MULTIPLE_APIC 1 1391 1392 1393/* Master MADT */ 1394 1395struct multiple_apic_table 1396{ 1397 ACPI_TABLE_HEADER_DEF /* ACPI common table header */ 1398 uint32_t local_apic_address; /* Physical address of local APIC */ 1399#if 0 1400 uint32_t PCATcompat : 1; /* A one indicates system also has dual 8259s */ 1401 uint32_t reserved1 : 31; 1402#else 1403 uint32_t flags; 1404#endif 1405} __attribute__((__packed__)); 1406 1407 1408/* Values for Type in APIC sub-headers */ 1409 1410#define APIC_PROCESSOR 0 1411#define APIC_IO 1 1412#define APIC_XRUPT_OVERRIDE 2 1413#define APIC_NMI 3 1414#define APIC_LOCAL_NMI 4 1415#define APIC_ADDRESS_OVERRIDE 5 1416#define APIC_IO_SAPIC 6 1417#define APIC_LOCAL_SAPIC 7 1418#define APIC_XRUPT_SOURCE 8 1419#define APIC_RESERVED 9 /* 9 and greater are reserved */ 1420 1421#define ACPI_SUB_HEADER_DEF /* Common ACPI sub-structure header */\ 1422 uint8_t type; \ 1423 uint8_t length; 1424 1425/* 1426 * MADT sub-structures (Follow MULTIPLE_APIC_DESCRIPTION_TABLE) 1427 */ 1428/* Sub-structures for MADT */ 1429 1430struct madt_processor_apic 1431{ 1432 ACPI_SUB_HEADER_DEF 1433 uint8_t processor_id; /* ACPI processor id */ 1434 uint8_t local_apic_id; /* Processor's local APIC id */ 1435#if 0 1436 uint32_t processor_enabled: 1; /* Processor is usable if set */ 1437 uint32_t reserved2 : 31; /* Reserved, must be zero */ 1438#else 1439 uint32_t flags; 1440#endif 1441} __attribute__((__packed__)); 1442 1443/* 1444 * SRAT (NUMA topology description) table 1445 */ 1446 1447#define SRAT_PROCESSOR 0 1448#define SRAT_MEMORY 1 1449 1450struct system_resource_affinity_table 1451{ 1452 ACPI_TABLE_HEADER_DEF 1453 uint32_t reserved1; 1454 uint32_t reserved2[2]; 1455}; 1456 1457struct srat_processor_affinity 1458{ 1459 ACPI_SUB_HEADER_DEF 1460 uint8_t proximity_lo; 1461 uint8_t local_apic_id; 1462 uint32_t flags; 1463 uint8_t local_sapic_eid; 1464 uint8_t proximity_hi[3]; 1465 uint32_t reserved; 1466}; 1467 1468struct srat_memory_affinity 1469{ 1470 ACPI_SUB_HEADER_DEF 1471 uint8_t proximity[4]; 1472 uint16_t reserved1; 1473 uint32_t base_addr_low,base_addr_high; 1474 uint32_t length_low,length_high; 1475 uint32_t reserved2; 1476 uint32_t flags; 1477 uint32_t reserved3[2]; 1478}; 1479 1480#ifdef BX_QEMU 1481/* 1482 * * ACPI 2.0 Generic Address Space definition. 1483 * */ 1484struct acpi_20_generic_address { 1485 uint8_t address_space_id; 1486 uint8_t register_bit_width; 1487 uint8_t register_bit_offset; 1488 uint8_t reserved; 1489 uint64_t address; 1490} __attribute__((__packed__)); 1491 1492/* 1493 * * HPET Description Table 1494 * */ 1495struct acpi_20_hpet { 1496 ACPI_TABLE_HEADER_DEF /* ACPI common table header */ 1497 uint32_t timer_block_id; 1498 struct acpi_20_generic_address addr; 1499 uint8_t hpet_number; 1500 uint16_t min_tick; 1501 uint8_t page_protect; 1502} __attribute__((__packed__)); 1503#define ACPI_HPET_ADDRESS 0xFED00000UL 1504#endif 1505 1506struct madt_io_apic 1507{ 1508 ACPI_SUB_HEADER_DEF 1509 uint8_t io_apic_id; /* I/O APIC ID */ 1510 uint8_t reserved; /* Reserved - must be zero */ 1511 uint32_t address; /* APIC physical address */ 1512 uint32_t interrupt; /* Global system interrupt where INTI 1513 * lines start */ 1514} __attribute__((__packed__)); 1515 1516#ifdef BX_QEMU 1517struct madt_int_override 1518{ 1519 ACPI_SUB_HEADER_DEF 1520 uint8_t bus; /* Identifies ISA Bus */ 1521 uint8_t source; /* Bus-relative interrupt source */ 1522 uint32_t gsi; /* GSI that source will signal */ 1523 uint16_t flags; /* MPS INTI flags */ 1524} __attribute__((__packed__)); 1525#endif 1526 1527#include "acpi-dsdt.hex" 1528 1529static inline uint16_t cpu_to_le16(uint16_t x) 1530{ 1531 return x; 1532} 1533 1534static inline uint32_t cpu_to_le32(uint32_t x) 1535{ 1536 return x; 1537} 1538 1539static int acpi_checksum(const uint8_t *data, int len) 1540{ 1541 int sum, i; 1542 sum = 0; 1543 for(i = 0; i < len; i++) 1544 sum += data[i]; 1545 return (-sum) & 0xff; 1546} 1547 1548static void acpi_build_table_header(struct acpi_table_header *h, 1549 char *sig, int len, uint8_t rev) 1550{ 1551 memcpy(h->signature, sig, 4); 1552 h->length = cpu_to_le32(len); 1553 h->revision = rev; 1554#ifdef BX_QEMU 1555 memcpy(h->oem_id, "QEMU ", 6); 1556 memcpy(h->oem_table_id, "QEMU", 4); 1557#else 1558 memcpy(h->oem_id, "BOCHS ", 6); 1559 memcpy(h->oem_table_id, "BXPC", 4); 1560#endif 1561 memcpy(h->oem_table_id + 4, sig, 4); 1562 h->oem_revision = cpu_to_le32(1); 1563#ifdef BX_QEMU 1564 memcpy(h->asl_compiler_id, "QEMU", 4); 1565#else 1566 memcpy(h->asl_compiler_id, "BXPC", 4); 1567#endif 1568 h->asl_compiler_revision = cpu_to_le32(1); 1569 h->checksum = acpi_checksum((void *)h, len); 1570} 1571 1572int acpi_build_processor_ssdt(uint8_t *ssdt) 1573{ 1574 uint8_t *ssdt_ptr = ssdt; 1575 int i, length; 1576 int acpi_cpus = smp_cpus > 0xff ? 0xff : smp_cpus; 1577 1578 ssdt_ptr[9] = 0; // checksum; 1579 ssdt_ptr += sizeof(struct acpi_table_header); 1580 1581 // caluculate the length of processor block and scope block excluding PkgLength 1582 length = 0x0d * acpi_cpus + 4; 1583 1584 // build processor scope header 1585 *(ssdt_ptr++) = 0x10; // ScopeOp 1586 if (length <= 0x3e) { 1587 *(ssdt_ptr++) = length + 1; 1588 } else { 1589 *(ssdt_ptr++) = 0x7F; 1590 *(ssdt_ptr++) = (length + 2) >> 6; 1591 } 1592 *(ssdt_ptr++) = '_'; // Name 1593 *(ssdt_ptr++) = 'P'; 1594 *(ssdt_ptr++) = 'R'; 1595 *(ssdt_ptr++) = '_'; 1596 1597 // build object for each processor 1598 for(i=0;i<acpi_cpus;i++) { 1599 *(ssdt_ptr++) = 0x5B; // ProcessorOp 1600 *(ssdt_ptr++) = 0x83; 1601 *(ssdt_ptr++) = 0x0B; // Length 1602 *(ssdt_ptr++) = 'C'; // Name (CPUxx) 1603 *(ssdt_ptr++) = 'P'; 1604 if ((i & 0xf0) != 0) 1605 *(ssdt_ptr++) = (i >> 4) < 0xa ? (i >> 4) + '0' : (i >> 4) + 'A' - 0xa; 1606 else 1607 *(ssdt_ptr++) = 'U'; 1608 *(ssdt_ptr++) = (i & 0xf) < 0xa ? (i & 0xf) + '0' : (i & 0xf) + 'A' - 0xa; 1609 *(ssdt_ptr++) = i; 1610 *(ssdt_ptr++) = 0x10; // Processor block address 1611 *(ssdt_ptr++) = 0xb0; 1612 *(ssdt_ptr++) = 0; 1613 *(ssdt_ptr++) = 0; 1614 *(ssdt_ptr++) = 6; // Processor block length 1615 } 1616 1617 acpi_build_table_header((struct acpi_table_header *)ssdt, 1618 "SSDT", ssdt_ptr - ssdt, 1); 1619 1620 return ssdt_ptr - ssdt; 1621} 1622 1623static void acpi_build_srat_memory(struct srat_memory_affinity *numamem, 1624 uint64_t base, uint64_t len, int node, int enabled) 1625{ 1626 numamem->type = SRAT_MEMORY; 1627 numamem->length = sizeof(*numamem); 1628 memset (numamem->proximity, 0 ,4); 1629 numamem->proximity[0] = node; 1630 numamem->flags = cpu_to_le32(!!enabled); 1631 numamem->base_addr_low = base & 0xFFFFFFFF; 1632 numamem->base_addr_high = base >> 32; 1633 numamem->length_low = len & 0xFFFFFFFF; 1634 numamem->length_high = len >> 32; 1635 return; 1636} 1637 1638/* base_addr must be a multiple of 4KB */ 1639void acpi_bios_init(void) 1640{ 1641 struct rsdp_descriptor *rsdp; 1642 struct rsdt_descriptor_rev1 *rsdt; 1643 struct fadt_descriptor_rev1 *fadt; 1644 struct facs_descriptor_rev1 *facs; 1645 struct multiple_apic_table *madt; 1646 uint8_t *dsdt, *ssdt; 1647#ifdef BX_QEMU 1648 struct system_resource_affinity_table *srat; 1649 struct acpi_20_hpet *hpet; 1650 uint32_t hpet_addr; 1651#endif 1652 uint32_t base_addr, rsdt_addr, fadt_addr, addr, facs_addr, dsdt_addr, ssdt_addr; 1653 uint32_t acpi_tables_size, madt_addr, madt_size, rsdt_size; 1654 uint32_t srat_addr,srat_size; 1655 uint16_t i, external_tables; 1656 int nb_numa_nodes; 1657 1658 /* reserve memory space for tables */ 1659#ifdef BX_USE_EBDA_TABLES 1660 ebda_cur_addr = align(ebda_cur_addr, 16); 1661 rsdp = (void *)(ebda_cur_addr); 1662 ebda_cur_addr += sizeof(*rsdp); 1663#else 1664 bios_table_cur_addr = align(bios_table_cur_addr, 16); 1665 rsdp = (void *)(bios_table_cur_addr); 1666 bios_table_cur_addr += sizeof(*rsdp); 1667#endif 1668 1669#ifdef BX_QEMU 1670 external_tables = acpi_additional_tables(); 1671#else 1672 external_tables = 0; 1673#endif 1674 1675 addr = base_addr = ram_size - ACPI_DATA_SIZE; 1676 rsdt_addr = addr; 1677 rsdt = (void *)(addr); 1678 rsdt_size = sizeof(*rsdt) + external_tables * 4; 1679 addr += rsdt_size; 1680 1681 fadt_addr = addr; 1682 fadt = (void *)(addr); 1683 addr += sizeof(*fadt); 1684 1685 /* XXX: FACS should be in RAM */ 1686 addr = (addr + 63) & ~63; /* 64 byte alignment for FACS */ 1687 facs_addr = addr; 1688 facs = (void *)(addr); 1689 addr += sizeof(*facs); 1690 1691 dsdt_addr = addr; 1692 dsdt = (void *)(addr); 1693 addr += sizeof(AmlCode); 1694 1695 ssdt_addr = addr; 1696 ssdt = (void *)(addr); 1697 addr += acpi_build_processor_ssdt(ssdt); 1698#ifdef BX_QEMU 1699 qemu_cfg_select(QEMU_CFG_NUMA); 1700 nb_numa_nodes = qemu_cfg_get64(); 1701#else 1702 nb_numa_nodes = 0; 1703#endif 1704 if (nb_numa_nodes > 0) { 1705 addr = (addr + 7) & ~7; 1706 srat_addr = addr; 1707 srat_size = sizeof(*srat) + 1708 sizeof(struct srat_processor_affinity) * smp_cpus + 1709 sizeof(struct srat_memory_affinity) * (nb_numa_nodes + 2); 1710 srat = (void *)(addr); 1711 addr += srat_size; 1712 } else { 1713 srat_addr = addr; 1714 srat = (void*)(addr); 1715 srat_size = 0; 1716 } 1717 1718 addr = (addr + 7) & ~7; 1719 madt_addr = addr; 1720 madt_size = sizeof(*madt) + 1721 sizeof(struct madt_processor_apic) * smp_cpus + 1722#ifdef BX_QEMU 1723 sizeof(struct madt_io_apic) + sizeof(struct madt_int_override); 1724#else 1725 sizeof(struct madt_io_apic); 1726#endif 1727 madt = (void *)(addr); 1728 addr += madt_size; 1729 1730#ifdef BX_QEMU 1731 addr = (addr + 7) & ~7; 1732 hpet_addr = addr; 1733 hpet = (void *)(addr); 1734 addr += sizeof(*hpet); 1735#endif 1736 1737 /* RSDP */ 1738 memset(rsdp, 0, sizeof(*rsdp)); 1739 memcpy(rsdp->signature, "RSD PTR ", 8); 1740#ifdef BX_QEMU 1741 memcpy(rsdp->oem_id, "QEMU ", 6); 1742#else 1743 memcpy(rsdp->oem_id, "BOCHS ", 6); 1744#endif 1745 rsdp->rsdt_physical_address = cpu_to_le32(rsdt_addr); 1746 rsdp->checksum = acpi_checksum((void *)rsdp, 20); 1747 1748 /* FADT */ 1749 memset(fadt, 0, sizeof(*fadt)); 1750 fadt->firmware_ctrl = cpu_to_le32(facs_addr); 1751 fadt->dsdt = cpu_to_le32(dsdt_addr); 1752 fadt->model = 1; 1753 fadt->reserved1 = 0; 1754 fadt->sci_int = cpu_to_le16(pm_sci_int); 1755 fadt->smi_cmd = cpu_to_le32(SMI_CMD_IO_ADDR); 1756 fadt->acpi_enable = 0xf1; 1757 fadt->acpi_disable = 0xf0; 1758 fadt->pm1a_evt_blk = cpu_to_le32(pm_io_base); 1759 fadt->pm1a_cnt_blk = cpu_to_le32(pm_io_base + 0x04); 1760 fadt->pm_tmr_blk = cpu_to_le32(pm_io_base + 0x08); 1761 fadt->pm1_evt_len = 4; 1762 fadt->pm1_cnt_len = 2; 1763 fadt->pm_tmr_len = 4; 1764 fadt->plvl2_lat = cpu_to_le16(0xfff); // C2 state not supported 1765 fadt->plvl3_lat = cpu_to_le16(0xfff); // C3 state not supported 1766 fadt->gpe0_blk = cpu_to_le32(0xafe0); 1767 fadt->gpe0_blk_len = 4; 1768 /* WBINVD + PROC_C1 + SLP_BUTTON + FIX_RTC */ 1769 fadt->flags = cpu_to_le32((1 << 0) | (1 << 2) | (1 << 5) | (1 << 6)); 1770 acpi_build_table_header((struct acpi_table_header *)fadt, "FACP", 1771 sizeof(*fadt), 1); 1772 1773 /* FACS */ 1774 memset(facs, 0, sizeof(*facs)); 1775 memcpy(facs->signature, "FACS", 4); 1776 facs->length = cpu_to_le32(sizeof(*facs)); 1777 BX_INFO("Firmware waking vector %p\n", &facs->firmware_waking_vector); 1778 1779 /* DSDT */ 1780 memcpy(dsdt, AmlCode, sizeof(AmlCode)); 1781 1782 /* MADT */ 1783 { 1784 struct madt_processor_apic *apic; 1785 struct madt_io_apic *io_apic; 1786#ifdef BX_QEMU 1787 struct madt_int_override *int_override; 1788#endif 1789 1790 memset(madt, 0, madt_size); 1791 madt->local_apic_address = cpu_to_le32(0xfee00000); 1792 madt->flags = cpu_to_le32(1); 1793 apic = (void *)(madt + 1); 1794 for(i=0;i<smp_cpus;i++) { 1795 apic->type = APIC_PROCESSOR; 1796 apic->length = sizeof(*apic); 1797 apic->processor_id = i; 1798 apic->local_apic_id = i; 1799 apic->flags = cpu_to_le32(1); 1800 apic++; 1801 } 1802 io_apic = (void *)apic; 1803 io_apic->type = APIC_IO; 1804 io_apic->length = sizeof(*io_apic); 1805 io_apic->io_apic_id = smp_cpus; 1806 io_apic->address = cpu_to_le32(0xfec00000); 1807 io_apic->interrupt = cpu_to_le32(0); 1808#ifdef BX_QEMU 1809 io_apic++; 1810 1811 int_override = (void *)io_apic; 1812 int_override->type = APIC_XRUPT_OVERRIDE; 1813 int_override->length = sizeof(*int_override); 1814 int_override->bus = cpu_to_le32(0); 1815 int_override->source = cpu_to_le32(0); 1816 int_override->gsi = cpu_to_le32(2); 1817 int_override->flags = cpu_to_le32(0); 1818#endif 1819 1820 acpi_build_table_header((struct acpi_table_header *)madt, 1821 "APIC", madt_size, 1); 1822 } 1823 1824 memset(rsdt, 0, rsdt_size); 1825#ifdef BX_QEMU 1826 /* SRAT */ 1827 if (nb_numa_nodes > 0) { 1828 struct srat_processor_affinity *core; 1829 struct srat_memory_affinity *numamem; 1830 int slots; 1831 uint64_t mem_len, mem_base, next_base = 0, curnode; 1832 1833 qemu_cfg_select(QEMU_CFG_NUMA); 1834 qemu_cfg_get64(); 1835 memset (srat, 0 , srat_size); 1836 srat->reserved1=1; 1837 1838 core = (void*)(srat + 1); 1839 for (i = 0; i < smp_cpus; ++i) { 1840 core->type = SRAT_PROCESSOR; 1841 core->length = sizeof(*core); 1842 core->local_apic_id = i; 1843 curnode = qemu_cfg_get64(); 1844 core->proximity_lo = curnode; 1845 memset (core->proximity_hi, 0, 3); 1846 core->local_sapic_eid = 0; 1847 if (i < smp_cpus) 1848 core->flags = cpu_to_le32(1); 1849 else 1850 core->flags = 0; 1851 core++; 1852 } 1853 1854 /* the memory map is a bit tricky, it contains at least one hole 1855 * from 640k-1M and possibly another one from 3.5G-4G. 1856 */ 1857 numamem = (void*)core; slots = 0; 1858 acpi_build_srat_memory(numamem, 0, 640*1024, 0, 1); 1859 next_base = 1024 * 1024; numamem++;slots++; 1860 for (i = 1; i < nb_numa_nodes + 1; ++i) { 1861 mem_base = next_base; 1862 mem_len = qemu_cfg_get64(); 1863 if (i == 1) mem_len -= 1024 * 1024; 1864 next_base = mem_base + mem_len; 1865 1866 /* Cut out the PCI hole */ 1867 if (mem_base <= ram_size && next_base > ram_size) { 1868 mem_len -= next_base - ram_size; 1869 if (mem_len > 0) { 1870 acpi_build_srat_memory(numamem, mem_base, mem_len, i-1, 1); 1871 numamem++; slots++; 1872 } 1873 mem_base = 1ULL << 32; 1874 mem_len = next_base - ram_size; 1875 next_base += (1ULL << 32) - ram_size; 1876 } 1877 acpi_build_srat_memory(numamem, mem_base, mem_len, i-1, 1); 1878 numamem++; slots++; 1879 } 1880 for (; slots < nb_numa_nodes + 2; slots++) { 1881 acpi_build_srat_memory(numamem, 0, 0, 0, 0); 1882 numamem++; 1883 } 1884 1885 acpi_build_table_header((struct acpi_table_header *)srat, 1886 "SRAT", srat_size, 1); 1887 } 1888 1889 /* HPET */ 1890 memset(hpet, 0, sizeof(*hpet)); 1891 /* Note timer_block_id value must be kept in sync with value advertised by 1892 * emulated hpet 1893 */ 1894 hpet->timer_block_id = cpu_to_le32(0x8086a201); 1895 hpet->addr.address = cpu_to_le32(ACPI_HPET_ADDRESS); 1896 acpi_build_table_header((struct acpi_table_header *)hpet, 1897 "HPET", sizeof(*hpet), 1); 1898 1899 acpi_additional_tables(); /* resets cfg to required entry */ 1900 for(i = 0; i < external_tables; i++) { 1901 uint16_t len; 1902 if(acpi_load_table(i, addr, &len) < 0) 1903 BX_PANIC("Failed to load ACPI table from QEMU\n"); 1904 rsdt->table_offset_entry[i+4] = cpu_to_le32(addr); 1905 addr += len; 1906 if(addr >= ram_size) 1907 BX_PANIC("ACPI table overflow\n"); 1908 } 1909#endif 1910 1911 /* RSDT */ 1912 rsdt->table_offset_entry[0] = cpu_to_le32(fadt_addr); 1913 rsdt->table_offset_entry[1] = cpu_to_le32(madt_addr); 1914 rsdt->table_offset_entry[2] = cpu_to_le32(ssdt_addr); 1915#ifdef BX_QEMU 1916 rsdt->table_offset_entry[3] = cpu_to_le32(hpet_addr); 1917 if (nb_numa_nodes > 0) 1918 rsdt->table_offset_entry[4] = cpu_to_le32(srat_addr); 1919#endif 1920 acpi_build_table_header((struct acpi_table_header *)rsdt, "RSDT", 1921 rsdt_size - (nb_numa_nodes > 0? 0: sizeof(uint32_t)), 1); 1922 1923 acpi_tables_size = addr - base_addr; 1924 1925 BX_INFO("ACPI tables: RSDP addr=0x%08lx ACPI DATA addr=0x%08lx size=0x%x\n", 1926 (unsigned long)rsdp, 1927 (unsigned long)rsdt, acpi_tables_size); 1928 1929} 1930 1931/* SMBIOS entry point -- must be written to a 16-bit aligned address 1932 between 0xf0000 and 0xfffff. 1933 */ 1934struct smbios_entry_point { 1935 char anchor_string[4]; 1936 uint8_t checksum; 1937 uint8_t length; 1938 uint8_t smbios_major_version; 1939 uint8_t smbios_minor_version; 1940 uint16_t max_structure_size; 1941 uint8_t entry_point_revision; 1942 uint8_t formatted_area[5]; 1943 char intermediate_anchor_string[5]; 1944 uint8_t intermediate_checksum; 1945 uint16_t structure_table_length; 1946 uint32_t structure_table_address; 1947 uint16_t number_of_structures; 1948 uint8_t smbios_bcd_revision; 1949} __attribute__((__packed__)); 1950 1951/* This goes at the beginning of every SMBIOS structure. */ 1952struct smbios_structure_header { 1953 uint8_t type; 1954 uint8_t length; 1955 uint16_t handle; 1956} __attribute__((__packed__)); 1957 1958/* SMBIOS type 0 - BIOS Information */ 1959struct smbios_type_0 { 1960 struct smbios_structure_header header; 1961 uint8_t vendor_str; 1962 uint8_t bios_version_str; 1963 uint16_t bios_starting_address_segment; 1964 uint8_t bios_release_date_str; 1965 uint8_t bios_rom_size; 1966 uint8_t bios_characteristics[8]; 1967 uint8_t bios_characteristics_extension_bytes[2]; 1968 uint8_t system_bios_major_release; 1969 uint8_t system_bios_minor_release; 1970 uint8_t embedded_controller_major_release; 1971 uint8_t embedded_controller_minor_release; 1972} __attribute__((__packed__)); 1973 1974/* SMBIOS type 1 - System Information */ 1975struct smbios_type_1 { 1976 struct smbios_structure_header header; 1977 uint8_t manufacturer_str; 1978 uint8_t product_name_str; 1979 uint8_t version_str; 1980 uint8_t serial_number_str; 1981 uint8_t uuid[16]; 1982 uint8_t wake_up_type; 1983 uint8_t sku_number_str; 1984 uint8_t family_str; 1985} __attribute__((__packed__)); 1986 1987/* SMBIOS type 3 - System Enclosure (v2.3) */ 1988struct smbios_type_3 { 1989 struct smbios_structure_header header; 1990 uint8_t manufacturer_str; 1991 uint8_t type; 1992 uint8_t version_str; 1993 uint8_t serial_number_str; 1994 uint8_t asset_tag_number_str; 1995 uint8_t boot_up_state; 1996 uint8_t power_supply_state; 1997 uint8_t thermal_state; 1998 uint8_t security_status; 1999 uint32_t oem_defined; 2000 uint8_t height; 2001 uint8_t number_of_power_cords; 2002 uint8_t contained_element_count; 2003 // contained elements follow 2004} __attribute__((__packed__)); 2005 2006/* SMBIOS type 4 - Processor Information (v2.0) */ 2007struct smbios_type_4 { 2008 struct smbios_structure_header header; 2009 uint8_t socket_designation_str; 2010 uint8_t processor_type; 2011 uint8_t processor_family; 2012 uint8_t processor_manufacturer_str; 2013 uint32_t processor_id[2]; 2014 uint8_t processor_version_str; 2015 uint8_t voltage; 2016 uint16_t external_clock; 2017 uint16_t max_speed; 2018 uint16_t current_speed; 2019 uint8_t status; 2020 uint8_t processor_upgrade; 2021 uint16_t l1_cache_handle; 2022 uint16_t l2_cache_handle; 2023 uint16_t l3_cache_handle; 2024} __attribute__((__packed__)); 2025 2026/* SMBIOS type 16 - Physical Memory Array 2027 * Associated with one type 17 (Memory Device). 2028 */ 2029struct smbios_type_16 { 2030 struct smbios_structure_header header; 2031 uint8_t location; 2032 uint8_t use; 2033 uint8_t error_correction; 2034 uint32_t maximum_capacity; 2035 uint16_t memory_error_information_handle; 2036 uint16_t number_of_memory_devices; 2037} __attribute__((__packed__)); 2038 2039/* SMBIOS type 17 - Memory Device 2040 * Associated with one type 19 2041 */ 2042struct smbios_type_17 { 2043 struct smbios_structure_header header; 2044 uint16_t physical_memory_array_handle; 2045 uint16_t memory_error_information_handle; 2046 uint16_t total_width; 2047 uint16_t data_width; 2048 uint16_t size; 2049 uint8_t form_factor; 2050 uint8_t device_set; 2051 uint8_t device_locator_str; 2052 uint8_t bank_locator_str; 2053 uint8_t memory_type; 2054 uint16_t type_detail; 2055} __attribute__((__packed__)); 2056 2057/* SMBIOS type 19 - Memory Array Mapped Address */ 2058struct smbios_type_19 { 2059 struct smbios_structure_header header; 2060 uint32_t starting_address; 2061 uint32_t ending_address; 2062 uint16_t memory_array_handle; 2063 uint8_t partition_width; 2064} __attribute__((__packed__)); 2065 2066/* SMBIOS type 20 - Memory Device Mapped Address */ 2067struct smbios_type_20 { 2068 struct smbios_structure_header header; 2069 uint32_t starting_address; 2070 uint32_t ending_address; 2071 uint16_t memory_device_handle; 2072 uint16_t memory_array_mapped_address_handle; 2073 uint8_t partition_row_position; 2074 uint8_t interleave_position; 2075 uint8_t interleaved_data_depth; 2076} __attribute__((__packed__)); 2077 2078/* SMBIOS type 32 - System Boot Information */ 2079struct smbios_type_32 { 2080 struct smbios_structure_header header; 2081 uint8_t reserved[6]; 2082 uint8_t boot_status; 2083} __attribute__((__packed__)); 2084 2085/* SMBIOS type 127 -- End-of-table */ 2086struct smbios_type_127 { 2087 struct smbios_structure_header header; 2088} __attribute__((__packed__)); 2089 2090static void 2091smbios_entry_point_init(void *start, 2092 uint16_t max_structure_size, 2093 uint16_t structure_table_length, 2094 uint32_t structure_table_address, 2095 uint16_t number_of_structures) 2096{ 2097 uint8_t sum; 2098 int i; 2099 struct smbios_entry_point *ep = (struct smbios_entry_point *)start; 2100 2101 memcpy(ep->anchor_string, "_SM_", 4); 2102 ep->length = 0x1f; 2103 ep->smbios_major_version = 2; 2104 ep->smbios_minor_version = 4; 2105 ep->max_structure_size = max_structure_size; 2106 ep->entry_point_revision = 0; 2107 memset(ep->formatted_area, 0, 5); 2108 memcpy(ep->intermediate_anchor_string, "_DMI_", 5); 2109 2110 ep->structure_table_length = structure_table_length; 2111 ep->structure_table_address = structure_table_address; 2112 ep->number_of_structures = number_of_structures; 2113 ep->smbios_bcd_revision = 0x24; 2114 2115 ep->checksum = 0; 2116 ep->intermediate_checksum = 0; 2117 2118 sum = 0; 2119 for (i = 0; i < 0x10; i++) 2120 sum += ((int8_t *)start)[i]; 2121 ep->checksum = -sum; 2122 2123 sum = 0; 2124 for (i = 0x10; i < ep->length; i++) 2125 sum += ((int8_t *)start)[i]; 2126 ep->intermediate_checksum = -sum; 2127 } 2128 2129struct smbios_header { 2130 uint16_t length; 2131 uint8_t type; 2132} __attribute__((__packed__)); 2133 2134struct smbios_field { 2135 struct smbios_header header; 2136 uint8_t type; 2137 uint16_t offset; 2138 uint8_t data[]; 2139} __attribute__((__packed__)); 2140 2141struct smbios_table { 2142 struct smbios_header header; 2143 uint8_t data[]; 2144} __attribute__((__packed__)); 2145 2146#define SMBIOS_FIELD_ENTRY 0 2147#define SMBIOS_TABLE_ENTRY 1 2148 2149static size_t 2150smbios_load_field(int type, size_t offset, void *addr) 2151{ 2152#ifdef BX_QEMU 2153 int i; 2154 2155 for (i = smbios_entries(); i > 0; i--) { 2156 struct smbios_field field; 2157 2158 qemu_cfg_read((uint8_t *)&field, sizeof(struct smbios_header)); 2159 field.header.length -= sizeof(struct smbios_header); 2160 2161 if (field.header.type != SMBIOS_FIELD_ENTRY) { 2162 while (field.header.length--) 2163 inb(QEMU_CFG_DATA_PORT); 2164 continue; 2165 } 2166 2167 qemu_cfg_read((uint8_t *)&field.type, 2168 sizeof(field) - sizeof(struct smbios_header)); 2169 field.header.length -= sizeof(field) - sizeof(struct smbios_header); 2170 2171 if (field.type != type || field.offset != offset) { 2172 while (field.header.length--) 2173 inb(QEMU_CFG_DATA_PORT); 2174 continue; 2175 } 2176 2177 qemu_cfg_read(addr, field.header.length); 2178 return (size_t)field.header.length; 2179 } 2180#endif 2181 return 0; 2182} 2183 2184#define load_str_field_with_default(type, field, def) do { \ 2185 size = smbios_load_field(type, offsetof(struct smbios_type_##type, \ 2186 field), end); \ 2187 if (size > 0) { \ 2188 end += size; \ 2189 } else { \ 2190 memcpy(end, def, sizeof(def)); \ 2191 end += sizeof(def); \ 2192 } \ 2193 p->field = ++str_index; \ 2194} while (0) 2195 2196#define load_str_field_or_skip(type, field) do { \ 2197 size = smbios_load_field(type, offsetof(struct smbios_type_##type, \ 2198 field), end); \ 2199 if (size > 0) { \ 2200 end += size; \ 2201 p->field = ++str_index; \ 2202 } else { \ 2203 p->field = 0; \ 2204 } \ 2205} while (0) 2206 2207/* Type 0 -- BIOS Information */ 2208#define RELEASE_DATE_STR "01/01/2007" 2209static void * 2210smbios_init_type_0(void *start) 2211{ 2212 struct smbios_type_0 *p = (struct smbios_type_0 *)start; 2213 char *end = (char *)start + sizeof(struct smbios_type_0); 2214 size_t size; 2215 int str_index = 0; 2216 2217 p->header.type = 0; 2218 p->header.length = sizeof(struct smbios_type_0); 2219 p->header.handle = 0; 2220 2221 load_str_field_with_default(0, vendor_str, BX_APPNAME); 2222 load_str_field_with_default(0, bios_version_str, BX_APPNAME); 2223 2224 p->bios_starting_address_segment = 0xe800; 2225 2226 load_str_field_with_default(0, bios_release_date_str, RELEASE_DATE_STR); 2227 2228 p->bios_rom_size = 0; /* FIXME */ 2229 2230 memset(p->bios_characteristics, 0, 8); 2231 p->bios_characteristics[0] = 0x08; /* BIOS characteristics not supported */ 2232 p->bios_characteristics_extension_bytes[0] = 0; 2233 p->bios_characteristics_extension_bytes[1] = 0; 2234 2235 if (!smbios_load_field(0, offsetof(struct smbios_type_0, 2236 system_bios_major_release), 2237 &p->system_bios_major_release)) 2238 p->system_bios_major_release = 1; 2239 2240 if (!smbios_load_field(0, offsetof(struct smbios_type_0, 2241 system_bios_minor_release), 2242 &p->system_bios_minor_release)) 2243 p->system_bios_minor_release = 0; 2244 2245 p->embedded_controller_major_release = 0xff; 2246 p->embedded_controller_minor_release = 0xff; 2247 2248 *end = 0; 2249 end++; 2250 2251 return end; 2252} 2253 2254/* Type 1 -- System Information */ 2255static void * 2256smbios_init_type_1(void *start) 2257{ 2258 struct smbios_type_1 *p = (struct smbios_type_1 *)start; 2259 char *end = (char *)start + sizeof(struct smbios_type_1); 2260 size_t size; 2261 int str_index = 0; 2262 2263 p->header.type = 1; 2264 p->header.length = sizeof(struct smbios_type_1); 2265 p->header.handle = 0x100; 2266 2267 load_str_field_or_skip(1, manufacturer_str); 2268 load_str_field_or_skip(1, product_name_str); 2269 load_str_field_or_skip(1, version_str); 2270 load_str_field_or_skip(1, serial_number_str); 2271 2272 size = smbios_load_field(1, offsetof(struct smbios_type_1, 2273 uuid), &p->uuid); 2274 if (size == 0) 2275 memset(p->uuid, 0, 16); 2276 2277 p->wake_up_type = 0x06; /* power switch */ 2278 2279 load_str_field_or_skip(1, sku_number_str); 2280 load_str_field_or_skip(1, family_str); 2281 2282 *end = 0; 2283 end++; 2284 if (!str_index) { 2285 *end = 0; 2286 end++; 2287 } 2288 2289 return end; 2290} 2291 2292/* Type 3 -- System Enclosure */ 2293static void * 2294smbios_init_type_3(void *start) 2295{ 2296 struct smbios_type_3 *p = (struct smbios_type_3 *)start; 2297 2298 p->header.type = 3; 2299 p->header.length = sizeof(struct smbios_type_3); 2300 p->header.handle = 0x300; 2301 2302 p->manufacturer_str = 0; 2303 p->type = 0x01; /* other */ 2304 p->version_str = 0; 2305 p->serial_number_str = 0; 2306 p->asset_tag_number_str = 0; 2307 p->boot_up_state = 0x03; /* safe */ 2308 p->power_supply_state = 0x03; /* safe */ 2309 p->thermal_state = 0x03; /* safe */ 2310 p->security_status = 0x02; /* unknown */ 2311 p->oem_defined = 0; 2312 p->height = 0; 2313 p->number_of_power_cords = 0; 2314 p->contained_element_count = 0; 2315 2316 start += sizeof(struct smbios_type_3); 2317 *((uint16_t *)start) = 0; 2318 2319 return start+2; 2320} 2321 2322/* Type 4 -- Processor Information */ 2323static void * 2324smbios_init_type_4(void *start, unsigned int cpu_number) 2325{ 2326 struct smbios_type_4 *p = (struct smbios_type_4 *)start; 2327 2328 p->header.type = 4; 2329 p->header.length = sizeof(struct smbios_type_4); 2330 p->header.handle = 0x400 + cpu_number; 2331 2332 p->socket_designation_str = 1; 2333 p->processor_type = 0x03; /* CPU */ 2334 p->processor_family = 0x01; /* other */ 2335 p->processor_manufacturer_str = 0; 2336 2337 p->processor_id[0] = cpuid_signature; 2338 p->processor_id[1] = cpuid_features; 2339 2340 p->processor_version_str = 0; 2341 p->voltage = 0; 2342 p->external_clock = 0; 2343 2344 p->max_speed = 0; /* unknown */ 2345 p->current_speed = 0; /* unknown */ 2346 2347 p->status = 0x41; /* socket populated, CPU enabled */ 2348 p->processor_upgrade = 0x01; /* other */ 2349 2350 p->l1_cache_handle = 0xffff; /* cache information structure not provided */ 2351 p->l2_cache_handle = 0xffff; 2352 p->l3_cache_handle = 0xffff; 2353 2354 start += sizeof(struct smbios_type_4); 2355 2356 memcpy((char *)start, "CPU " "\0" "" "\0" "", 7); 2357 ((char *)start)[4] = cpu_number + '0'; 2358 2359 return start+7; 2360} 2361 2362/* Type 16 -- Physical Memory Array */ 2363static void * 2364smbios_init_type_16(void *start, uint32_t memsize, int nr_mem_devs) 2365{ 2366 struct smbios_type_16 *p = (struct smbios_type_16*)start; 2367 2368 p->header.type = 16; 2369 p->header.length = sizeof(struct smbios_type_16); 2370 p->header.handle = 0x1000; 2371 2372 p->location = 0x01; /* other */ 2373 p->use = 0x03; /* system memory */ 2374 p->error_correction = 0x01; /* other */ 2375 p->maximum_capacity = memsize * 1024; 2376 p->memory_error_information_handle = 0xfffe; /* none provided */ 2377 p->number_of_memory_devices = nr_mem_devs; 2378 2379 start += sizeof(struct smbios_type_16); 2380 *((uint16_t *)start) = 0; 2381 2382 return start + 2; 2383} 2384 2385/* Type 17 -- Memory Device */ 2386static void * 2387smbios_init_type_17(void *start, uint32_t memory_size_mb, int instance) 2388{ 2389 struct smbios_type_17 *p = (struct smbios_type_17 *)start; 2390 2391 p->header.type = 17; 2392 p->header.length = sizeof(struct smbios_type_17); 2393 p->header.handle = 0x1100 + instance; 2394 2395 p->physical_memory_array_handle = 0x1000; 2396 p->total_width = 64; 2397 p->data_width = 64; 2398/* TODO: should assert in case something is wrong ASSERT((memory_size_mb & ~0x7fff) == 0); */ 2399 p->size = memory_size_mb; 2400 p->form_factor = 0x09; /* DIMM */ 2401 p->device_set = 0; 2402 p->device_locator_str = 1; 2403 p->bank_locator_str = 0; 2404 p->memory_type = 0x07; /* RAM */ 2405 p->type_detail = 0; 2406 2407 start += sizeof(struct smbios_type_17); 2408 snprintf(start, 8, "DIMM %d", instance); 2409 start += strlen(start) + 1; 2410 *((uint8_t *)start) = 0; 2411 2412 return start+1; 2413} 2414 2415/* Type 19 -- Memory Array Mapped Address */ 2416static void * 2417smbios_init_type_19(void *start, uint32_t memory_size_mb, int instance) 2418{ 2419 struct smbios_type_19 *p = (struct smbios_type_19 *)start; 2420 2421 p->header.type = 19; 2422 p->header.length = sizeof(struct smbios_type_19); 2423 p->header.handle = 0x1300 + instance; 2424 2425 p->starting_address = instance << 24; 2426 p->ending_address = p->starting_address + (memory_size_mb << 10) - 1; 2427 p->memory_array_handle = 0x1000; 2428 p->partition_width = 1; 2429 2430 start += sizeof(struct smbios_type_19); 2431 *((uint16_t *)start) = 0; 2432 2433 return start + 2; 2434} 2435 2436/* Type 20 -- Memory Device Mapped Address */ 2437static void * 2438smbios_init_type_20(void *start, uint32_t memory_size_mb, int instance) 2439{ 2440 struct smbios_type_20 *p = (struct smbios_type_20 *)start; 2441 2442 p->header.type = 20; 2443 p->header.length = sizeof(struct smbios_type_20); 2444 p->header.handle = 0x1400 + instance; 2445 2446 p->starting_address = instance << 24; 2447 p->ending_address = p->starting_address + (memory_size_mb << 10) - 1; 2448 p->memory_device_handle = 0x1100 + instance; 2449 p->memory_array_mapped_address_handle = 0x1300 + instance; 2450 p->partition_row_position = 1; 2451 p->interleave_position = 0; 2452 p->interleaved_data_depth = 0; 2453 2454 start += sizeof(struct smbios_type_20); 2455 2456 *((uint16_t *)start) = 0; 2457 return start+2; 2458} 2459 2460/* Type 32 -- System Boot Information */ 2461static void * 2462smbios_init_type_32(void *start) 2463{ 2464 struct smbios_type_32 *p = (struct smbios_type_32 *)start; 2465 2466 p->header.type = 32; 2467 p->header.length = sizeof(struct smbios_type_32); 2468 p->header.handle = 0x2000; 2469 memset(p->reserved, 0, 6); 2470 p->boot_status = 0; /* no errors detected */ 2471 2472 start += sizeof(struct smbios_type_32); 2473 *((uint16_t *)start) = 0; 2474 2475 return start+2; 2476} 2477 2478/* Type 127 -- End of Table */ 2479static void * 2480smbios_init_type_127(void *start) 2481{ 2482 struct smbios_type_127 *p = (struct smbios_type_127 *)start; 2483 2484 p->header.type = 127; 2485 p->header.length = sizeof(struct smbios_type_127); 2486 p->header.handle = 0x7f00; 2487 2488 start += sizeof(struct smbios_type_127); 2489 *((uint16_t *)start) = 0; 2490 2491 return start + 2; 2492} 2493 2494static int 2495smbios_load_external(int type, char **p, unsigned *nr_structs, 2496 unsigned *max_struct_size) 2497{ 2498#ifdef BX_QEMU 2499 static uint64_t used_bitmap[4] = { 0 }; 2500 char *start = *p; 2501 int i; 2502 2503 /* Check if we've already reported these tables */ 2504 if (used_bitmap[(type >> 6) & 0x3] & (1ULL << (type & 0x3f))) 2505 return 1; 2506 2507 /* Don't introduce spurious end markers */ 2508 if (type == 127) 2509 return 0; 2510 2511 for (i = smbios_entries(); i > 0; i--) { 2512 struct smbios_table table; 2513 struct smbios_structure_header *header = (void *)*p; 2514 int string; 2515 2516 qemu_cfg_read((uint8_t *)&table, sizeof(struct smbios_header)); 2517 table.header.length -= sizeof(struct smbios_header); 2518 2519 if (table.header.type != SMBIOS_TABLE_ENTRY) { 2520 while (table.header.length--) 2521 inb(QEMU_CFG_DATA_PORT); 2522 continue; 2523 } 2524 2525 qemu_cfg_read((uint8_t *)*p, sizeof(struct smbios_structure_header)); 2526 table.header.length -= sizeof(struct smbios_structure_header); 2527 2528 if (header->type != type) { 2529 while (table.header.length--) 2530 inb(QEMU_CFG_DATA_PORT); 2531 continue; 2532 } 2533 2534 *p += sizeof(struct smbios_structure_header); 2535 2536 /* Entries end with a double NULL char, if there's a string at 2537 * the end (length is greater than formatted length), the string 2538 * terminator provides the first NULL. */ 2539 string = header->length < table.header.length + 2540 sizeof(struct smbios_structure_header); 2541 2542 /* Read the rest and terminate the entry */ 2543 qemu_cfg_read((uint8_t *)*p, table.header.length); 2544 *p += table.header.length; 2545 *((uint8_t*)*p) = 0; 2546 (*p)++; 2547 if (!string) { 2548 *((uint8_t*)*p) = 0; 2549 (*p)++; 2550 } 2551 2552 (*nr_structs)++; 2553 if (*p - (char *)header > *max_struct_size) 2554 *max_struct_size = *p - (char *)header; 2555 } 2556 2557 /* Mark that we've reported on this type */ 2558 used_bitmap[(type >> 6) & 0x3] |= (1ULL << (type & 0x3f)); 2559 2560 return (start != *p); 2561#else /* !BX_QEMU */ 2562 return 0; 2563#endif 2564} 2565 2566void smbios_init(void) 2567{ 2568 unsigned cpu_num, nr_structs = 0, max_struct_size = 0; 2569 char *start, *p, *q; 2570 int memsize = (ram_end == ram_size) ? ram_size / (1024 * 1024) : 2571 (ram_end - (1ull << 32) + ram_size) / (1024 * 1024); 2572 int i, nr_mem_devs; 2573 2574#ifdef BX_USE_EBDA_TABLES 2575 ebda_cur_addr = align(ebda_cur_addr, 16); 2576 start = (void *)(ebda_cur_addr); 2577#else 2578 bios_table_cur_addr = align(bios_table_cur_addr, 16); 2579 start = (void *)(bios_table_cur_addr); 2580#endif 2581 2582 p = (char *)start + sizeof(struct smbios_entry_point); 2583 2584#define add_struct(type, args...) do { \ 2585 if (!smbios_load_external(type, &p, &nr_structs, &max_struct_size)) { \ 2586 q = smbios_init_type_##type(args); \ 2587 nr_structs++; \ 2588 if ((q - p) > max_struct_size) \ 2589 max_struct_size = q - p; \ 2590 p = q; \ 2591 } \ 2592} while (0) 2593 2594 add_struct(0, p); 2595 add_struct(1, p); 2596 add_struct(3, p); 2597 for (cpu_num = 1; cpu_num <= smp_cpus; cpu_num++) 2598 add_struct(4, p, cpu_num); 2599 2600 /* Each 'memory device' covers up to 16GB of address space. */ 2601 nr_mem_devs = (memsize + 0x3fff) >> 14; 2602 add_struct(16, p, memsize, nr_mem_devs); 2603 for ( i = 0; i < nr_mem_devs; i++ ) 2604 { 2605 uint32_t dev_memsize = ((i == (nr_mem_devs - 1)) 2606 ? (((memsize-1) & 0x3fff)+1) : 0x4000); 2607 add_struct(17, p, dev_memsize, i); 2608 add_struct(19, p, dev_memsize, i); 2609 add_struct(20, p, dev_memsize, i); 2610 } 2611 2612 add_struct(32, p); 2613 /* Add any remaining provided entries before the end marker */ 2614 for (i = 0; i < 256; i++) 2615 smbios_load_external(i, &p, &nr_structs, &max_struct_size); 2616 add_struct(127, p); 2617 2618#undef add_struct 2619 2620 smbios_entry_point_init( 2621 start, max_struct_size, 2622 (p - (char *)start) - sizeof(struct smbios_entry_point), 2623 (uint32_t)(start + sizeof(struct smbios_entry_point)), 2624 nr_structs); 2625 2626#ifdef BX_USE_EBDA_TABLES 2627 ebda_cur_addr += (p - (char *)start); 2628#else 2629 bios_table_cur_addr += (p - (char *)start); 2630#endif 2631 2632 BX_INFO("SMBIOS table addr=0x%08lx\n", (unsigned long)start); 2633} 2634 2635static uint32_t find_resume_vector(void) 2636{ 2637 unsigned long addr, start, end; 2638 2639#ifdef BX_USE_EBDA_TABLES 2640 start = align(ebda_cur_addr, 16); 2641 end = 0xa000 << 4; 2642#else 2643 if (bios_table_cur_addr == 0) 2644 return 0; 2645 start = align(bios_table_cur_addr, 16); 2646 end = bios_table_end_addr; 2647#endif 2648 2649 for (addr = start; addr < end; addr += 16) { 2650 if (!memcmp((void*)addr, "RSD PTR ", 8)) { 2651 struct rsdp_descriptor *rsdp = (void*)addr; 2652 struct rsdt_descriptor_rev1 *rsdt = (void*)rsdp->rsdt_physical_address; 2653 struct fadt_descriptor_rev1 *fadt = (void*)rsdt->table_offset_entry[0]; 2654 struct facs_descriptor_rev1 *facs = (void*)fadt->firmware_ctrl; 2655 return facs->firmware_waking_vector; 2656 } 2657 } 2658 2659 return 0; 2660} 2661 2662static void find_440fx(PCIDevice *d) 2663{ 2664 uint16_t vendor_id, device_id; 2665 2666 vendor_id = pci_config_readw(d, PCI_VENDOR_ID); 2667 device_id = pci_config_readw(d, PCI_DEVICE_ID); 2668 2669 if (vendor_id == PCI_VENDOR_ID_INTEL && device_id == PCI_DEVICE_ID_INTEL_82441) 2670 i440_pcidev = *d; 2671} 2672 2673static void reinit_piix4_pm(PCIDevice *d) 2674{ 2675 uint16_t vendor_id, device_id; 2676 2677 vendor_id = pci_config_readw(d, PCI_VENDOR_ID); 2678 device_id = pci_config_readw(d, PCI_DEVICE_ID); 2679 2680 if (vendor_id == PCI_VENDOR_ID_INTEL && device_id == PCI_DEVICE_ID_INTEL_82371AB_3) 2681 piix4_pm_enable(d); 2682} 2683 2684void rombios32_init(uint32_t *s3_resume_vector, uint8_t *shutdown_flag) 2685{ 2686 BX_INFO("Starting rombios32\n"); 2687 BX_INFO("Shutdown flag %x\n", *shutdown_flag); 2688 2689#ifdef BX_QEMU 2690 qemu_cfg_port = qemu_cfg_port_probe(); 2691#endif 2692 2693 ram_probe(); 2694 2695 cpu_probe(); 2696 2697 setup_mtrr(); 2698 2699 smp_probe(); 2700 2701 find_bios_table_area(); 2702 2703 if (*shutdown_flag == 0xfe) { 2704 /* redirect bios read access to RAM */ 2705 pci_for_each_device(find_440fx); 2706 bios_lock_shadow_ram(); /* bios is already copied */ 2707 *s3_resume_vector = find_resume_vector(); 2708 if (!*s3_resume_vector) { 2709 BX_INFO("This is S3 resume but wakeup vector is NULL\n"); 2710 } else { 2711 BX_INFO("S3 resume vector %p\n", *s3_resume_vector); 2712 pci_for_each_device(reinit_piix4_pm); 2713 } 2714 return; 2715 } 2716 2717 pci_bios_init(); 2718 2719 if (bios_table_cur_addr != 0) { 2720 2721 mptable_init(); 2722 2723 smbios_init(); 2724 2725 if (acpi_enabled) 2726 acpi_bios_init(); 2727 2728 bios_lock_shadow_ram(); 2729 2730 BX_INFO("bios_table_cur_addr: 0x%08lx\n", bios_table_cur_addr); 2731 if (bios_table_cur_addr > bios_table_end_addr) 2732 BX_PANIC("bios_table_end_addr overflow!\n"); 2733#ifdef BX_USE_EBDA_TABLES 2734 BX_INFO("ebda_cur_addr: 0x%08lx\n", ebda_cur_addr); 2735 if (ebda_cur_addr > 0xA0000) 2736 BX_PANIC("ebda_cur_addr overflow!\n"); 2737#endif 2738 } 2739} 2740