162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* -*- linux-c -*- ------------------------------------------------------- * 262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin * 362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin * Copyright (C) 1991, 1992 Linus Torvalds 462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin * Copyright 2007 rPath, Inc. - All Rights Reserved 57a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin * Copyright 2009 Intel Corporation; author H. Peter Anvin 662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin * 762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin * This file is part of the Linux kernel, and is made available under 862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin * the terms of the GNU General Public License version 2. 962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin * 1062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin * ----------------------------------------------------------------------- */ 1162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 1262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* 1362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin * Header file for the real-mode kernel code 1462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin */ 1562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 1662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#ifndef BOOT_BOOT_H 1762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#define BOOT_BOOT_H 1862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 196b6815c6d5d1dc209701d1661a7a0e09a295db2fH. Peter Anvin#define STACK_SIZE 512 /* Minimum number of bytes for stack */ 206b6815c6d5d1dc209701d1661a7a0e09a295db2fH. Peter Anvin 2162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#ifndef __ASSEMBLY__ 2262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 2362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#include <stdarg.h> 2462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#include <linux/types.h> 2562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#include <linux/edd.h> 2662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#include <asm/boot.h> 27fa76dab935b856871024530ec818bc0a8f88a016H. Peter Anvin#include <asm/setup.h> 28c2dcfde8274883e1f6050784dcbd34b01e824b91H. Peter Anvin#include "bitops.h" 296238b47b58480cd9c092600c05338dbe261b71ceH. Peter Anvin#include "ctype.h" 30dd78b97367bd575918204cc89107c1479d3fc1a7Kees Cook#include "cpuflags.h" 317b27718bdb1b70166383dec91391df5534d449eeJoerg Roedel 3262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* Useful macros */ 3362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) 3462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 351b72691ce35812ff865d778f303779e774d2b098Andi Kleen#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x))) 361b72691ce35812ff865d778f303779e774d2b098Andi Kleen 3762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinextern struct setup_header hdr; 3862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinextern struct boot_params boot_params; 3962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 40fa97bdf92709adaaf8b9a5164a895e262a4fcf60Pekka Enberg#define cpu_relax() asm volatile("rep; nop") 41fa97bdf92709adaaf8b9a5164a895e262a4fcf60Pekka Enberg 4262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* Basic port I/O */ 4362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void outb(u8 v, u16 port) 4462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 4562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin asm volatile("outb %0,%1" : : "a" (v), "dN" (port)); 4662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 4762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u8 inb(u16 port) 4862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 4962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u8 v; 5062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin asm volatile("inb %1,%0" : "=a" (v) : "dN" (port)); 5162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return v; 5262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 5362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 5462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void outw(u16 v, u16 port) 5562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 5662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin asm volatile("outw %0,%1" : : "a" (v), "dN" (port)); 5762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 5862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u16 inw(u16 port) 5962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 6062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u16 v; 6162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin asm volatile("inw %1,%0" : "=a" (v) : "dN" (port)); 6262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return v; 6362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 6462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 6562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void outl(u32 v, u16 port) 6662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 675593eaa854d0b23c3b270933a93b9b82946df729H. Peter Anvin asm volatile("outl %0,%1" : : "a" (v), "dN" (port)); 6862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 6935f1790e6c6a7e4cae57b616cf36444d27fa6b28He Chunhuistatic inline u32 inl(u16 port) 7062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 7162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u32 v; 7262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin asm volatile("inl %1,%0" : "=a" (v) : "dN" (port)); 7362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return v; 7462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 7562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 7662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void io_delay(void) 7762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 7862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin const u16 DELAY_PORT = 0x80; 7962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin asm volatile("outb %%al,%0" : : "dN" (DELAY_PORT)); 8062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 8162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 8262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* These functions are used to reference data in other segments. */ 8362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 8462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u16 ds(void) 8562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 8662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u16 seg; 8762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin asm("movw %%ds,%0" : "=rm" (seg)); 8862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return seg; 8962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 9062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 9162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void set_fs(u16 seg) 9262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 9362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin asm volatile("movw %0,%%fs" : : "rm" (seg)); 9462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 9562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u16 fs(void) 9662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 9762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u16 seg; 98b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin asm volatile("movw %%fs,%0" : "=rm" (seg)); 9962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return seg; 10062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 10162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 10262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void set_gs(u16 seg) 10362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 10462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin asm volatile("movw %0,%%gs" : : "rm" (seg)); 10562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 10662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u16 gs(void) 10762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 10862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u16 seg; 109b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin asm volatile("movw %%gs,%0" : "=rm" (seg)); 11062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return seg; 11162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 11262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 11362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvintypedef unsigned int addr_t; 11462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 11562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u8 rdfs8(addr_t addr) 11662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 11762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u8 v; 118811a0fff5d6e80e18e06be88e0fb685f3924bf8fH. Peter Anvin asm volatile("movb %%fs:%1,%0" : "=q" (v) : "m" (*(u8 *)addr)); 11962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return v; 12062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 12162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u16 rdfs16(addr_t addr) 12262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 12362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u16 v; 124b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin asm volatile("movw %%fs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr)); 12562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return v; 12662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 12762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u32 rdfs32(addr_t addr) 12862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 12962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u32 v; 130b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin asm volatile("movl %%fs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr)); 13162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return v; 13262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 13362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 13462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void wrfs8(u8 v, addr_t addr) 13562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 136811a0fff5d6e80e18e06be88e0fb685f3924bf8fH. Peter Anvin asm volatile("movb %1,%%fs:%0" : "+m" (*(u8 *)addr) : "qi" (v)); 13762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 13862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void wrfs16(u16 v, addr_t addr) 13962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 140811a0fff5d6e80e18e06be88e0fb685f3924bf8fH. Peter Anvin asm volatile("movw %1,%%fs:%0" : "+m" (*(u16 *)addr) : "ri" (v)); 14162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 14262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void wrfs32(u32 v, addr_t addr) 14362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 144811a0fff5d6e80e18e06be88e0fb685f3924bf8fH. Peter Anvin asm volatile("movl %1,%%fs:%0" : "+m" (*(u32 *)addr) : "ri" (v)); 14562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 14662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 14762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u8 rdgs8(addr_t addr) 14862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 14962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u8 v; 150811a0fff5d6e80e18e06be88e0fb685f3924bf8fH. Peter Anvin asm volatile("movb %%gs:%1,%0" : "=q" (v) : "m" (*(u8 *)addr)); 15162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return v; 15262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 15362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u16 rdgs16(addr_t addr) 15462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 15562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u16 v; 156b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin asm volatile("movw %%gs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr)); 15762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return v; 15862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 15962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline u32 rdgs32(addr_t addr) 16062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 16162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u32 v; 162b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin asm volatile("movl %%gs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr)); 16362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return v; 16462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 16562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 16662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void wrgs8(u8 v, addr_t addr) 16762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 168811a0fff5d6e80e18e06be88e0fb685f3924bf8fH. Peter Anvin asm volatile("movb %1,%%gs:%0" : "+m" (*(u8 *)addr) : "qi" (v)); 16962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 17062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void wrgs16(u16 v, addr_t addr) 17162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 172811a0fff5d6e80e18e06be88e0fb685f3924bf8fH. Peter Anvin asm volatile("movw %1,%%gs:%0" : "+m" (*(u16 *)addr) : "ri" (v)); 17362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 17462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline void wrgs32(u32 v, addr_t addr) 17562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 176811a0fff5d6e80e18e06be88e0fb685f3924bf8fH. Peter Anvin asm volatile("movl %1,%%gs:%0" : "+m" (*(u32 *)addr) : "ri" (v)); 17762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 17862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 17962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* Note: these only return true/false, not a signed return value! */ 18062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline int memcmp_fs(const void *s1, addr_t s2, size_t len) 18162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 18262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u8 diff; 183b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin asm volatile("fs; repe; cmpsb; setnz %0" 184b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); 18562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return diff; 18662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 18762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline int memcmp_gs(const void *s1, addr_t s2, size_t len) 18862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 18962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin u8 diff; 190b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin asm volatile("gs; repe; cmpsb; setnz %0" 191b015124e562a040f7faf361c72e8f5f457ac6cf5H. Peter Anvin : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); 19262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return diff; 19362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 19462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 19562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* Heap -- available for dynamic lists. */ 19662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinextern char _end[]; 19762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinextern char *HEAP; 19862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinextern char *heap_end; 19962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#define RESET_HEAP() ((void *)( HEAP = _end )) 20062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinstatic inline char *__get_heap(size_t s, size_t a, size_t n) 20162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 20262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin char *tmp; 20362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 20462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin HEAP = (char *)(((size_t)HEAP+(a-1)) & ~(a-1)); 20562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin tmp = HEAP; 20662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin HEAP += s*n; 20762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin return tmp; 20862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 20962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#define GET_HEAP(type, n) \ 21062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin ((type *)__get_heap(sizeof(type),__alignof__(type),(n))) 21162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 212e6e1ace9904b72478f0c5a5aa7bd174cb6f62561H. Peter Anvinstatic inline bool heap_free(size_t n) 21362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin{ 214e6e1ace9904b72478f0c5a5aa7bd174cb6f62561H. Peter Anvin return (int)(heap_end-HEAP) >= (int)n; 21562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin} 21662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 21762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* copy.S */ 21862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 21962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid copy_to_fs(addr_t dst, void *src, size_t len); 22062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid *copy_from_fs(void *dst, addr_t src, size_t len); 22162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid copy_to_gs(addr_t dst, void *src, size_t len); 22262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid *copy_from_gs(void *dst, addr_t src, size_t len); 22362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 22462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* a20.c */ 22562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint enable_a20(void); 22662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 22762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* apm.c */ 22862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint query_apm_bios(void); 22962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 2307a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin/* bioscall.c */ 2317a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvinstruct biosregs { 2327a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin union { 2337a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin struct { 2347a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 edi; 2357a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 esi; 2367a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 ebp; 2377a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 _esp; 2387a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 ebx; 2397a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 edx; 2407a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 ecx; 2417a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 eax; 2427a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 _fsgs; 2437a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 _dses; 2447a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u32 eflags; 2457a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin }; 2467a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin struct { 2477a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 di, hdi; 2487a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 si, hsi; 2497a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 bp, hbp; 2507a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 _sp, _hsp; 2517a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 bx, hbx; 2527a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 dx, hdx; 2537a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 cx, hcx; 2547a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 ax, hax; 2557a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 gs, fs; 2567a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 es, ds; 2577a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u16 flags, hflags; 2587a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin }; 2597a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin struct { 2607a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u8 dil, dih, edi2, edi3; 2617a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u8 sil, sih, esi2, esi3; 2627a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u8 bpl, bph, ebp2, ebp3; 2637a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u8 _spl, _sph, _esp2, _esp3; 2647a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u8 bl, bh, ebx2, ebx3; 2657a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u8 dl, dh, edx2, edx3; 2667a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u8 cl, ch, ecx2, ecx3; 2677a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin u8 al, ah, eax2, eax3; 2687a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin }; 2697a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin }; 2707a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin}; 2717a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvinvoid intcall(u8 int_no, const struct biosregs *ireg, struct biosregs *oreg); 2727a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin 27362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* cmdline.c */ 2743db07e70f0b4742f8daeda5c4aa8fbe7aeb3799eYinghai Luint __cmdline_find_option(unsigned long cmdline_ptr, const char *option, char *buffer, int bufsize); 2753db07e70f0b4742f8daeda5c4aa8fbe7aeb3799eYinghai Luint __cmdline_find_option_bool(unsigned long cmdline_ptr, const char *option); 276f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lustatic inline int cmdline_find_option(const char *option, char *buffer, int bufsize) 277f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lu{ 2783db07e70f0b4742f8daeda5c4aa8fbe7aeb3799eYinghai Lu unsigned long cmd_line_ptr = boot_params.hdr.cmd_line_ptr; 27916a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu 28016a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu if (cmd_line_ptr >= 0x100000) 28116a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu return -1; /* inaccessible */ 28216a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu 28316a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu return __cmdline_find_option(cmd_line_ptr, option, buffer, bufsize); 284f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lu} 285f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lu 286f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lustatic inline int cmdline_find_option_bool(const char *option) 287f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lu{ 2883db07e70f0b4742f8daeda5c4aa8fbe7aeb3799eYinghai Lu unsigned long cmd_line_ptr = boot_params.hdr.cmd_line_ptr; 28916a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu 29016a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu if (cmd_line_ptr >= 0x100000) 29116a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu return -1; /* inaccessible */ 29216a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu 29316a4baa642cf448742aaf150c4daa093f9dbebbbYinghai Lu return __cmdline_find_option_bool(cmd_line_ptr, option); 294f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lu} 295f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lu 29662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* cpu.c, cpucheck.c */ 29762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr); 29862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint validate_cpu(void); 29962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 300f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lu/* early_serial_console.c */ 301f4ed2877b16e8146427306aea8819adac5c88374Yinghai Luextern int early_serial_base; 302f4ed2877b16e8146427306aea8819adac5c88374Yinghai Luvoid console_init(void); 303f4ed2877b16e8146427306aea8819adac5c88374Yinghai Lu 30462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* edd.c */ 30562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid query_edd(void); 30662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 30762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* header.S */ 30862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid __attribute__((noreturn)) die(void); 30962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 31062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* mca.c */ 31162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint query_mca(void); 31262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 31362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* memory.c */ 31462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint detect_memory(void); 31562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 31662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* pm.c */ 31762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid __attribute__((noreturn)) go_to_protected_mode(void); 31862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 31962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* pmjump.S */ 32062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid __attribute__((noreturn)) 32162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin protected_mode_jump(u32 entrypoint, u32 bootparams); 32262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 32362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* printf.c */ 32462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint sprintf(char *buf, const char *fmt, ...); 32562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint vsprintf(char *buf, const char *fmt, va_list args); 32662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint printf(const char *fmt, ...); 32762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 3287a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin/* regs.c */ 3297a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvinvoid initregs(struct biosregs *regs); 3307a734e7dd93b9aea08ed51036a9a0e2c9dfd8dacH. Peter Anvin 33162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* string.c */ 33262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint strcmp(const char *str1, const char *str2); 333fa97bdf92709adaaf8b9a5164a895e262a4fcf60Pekka Enbergint strncmp(const char *cs, const char *ct, size_t count); 33462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinsize_t strnlen(const char *s, size_t maxlen); 33562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinunsigned int atou(const char *s); 336fa97bdf92709adaaf8b9a5164a895e262a4fcf60Pekka Enbergunsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base); 337062fe8fe511e7f771ef1dc824eaf996ba50a694bFred Chensize_t strlen(const char *s); 33862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 33962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* tty.c */ 34062bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid puts(const char *); 34162bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid putchar(int); 34262bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint getchar(void); 34362bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid kbd_flush(void); 34462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinint getchar_timeout(void); 34562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 34662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* video.c */ 34762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid set_video(void); 34862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 349e44b7b7525ad9d43163ab5e60c784325419e0ea6Pavel Machek/* video-mode.c */ 350e44b7b7525ad9d43163ab5e60c784325419e0ea6Pavel Machekint set_mode(u16 mode); 351e44b7b7525ad9d43163ab5e60c784325419e0ea6Pavel Machekint mode_defined(u16 mode); 352e44b7b7525ad9d43163ab5e60c784325419e0ea6Pavel Machekvoid probe_cards(int unsafe); 353e44b7b7525ad9d43163ab5e60c784325419e0ea6Pavel Machek 35462bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin/* video-vesa.c */ 35562bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvinvoid vesa_store_edid(void); 35662bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 35762bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#endif /* __ASSEMBLY__ */ 35862bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin 35962bd0337d0c4a77902502558aa30ceeb15655407H. Peter Anvin#endif /* BOOT_BOOT_H */ 360