usr/src/grub/grub-0.97/stage2/cpu.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2006  Free Software Foundation, Inc.
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /*
  20  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  21  * Use is subject to license terms.
  22  */
  23
  24 #ifndef _AMD64_CPU
  25 #define _AMD64_CPU
  26
  27 #ifdef  __cplusplus
  28 extern "C" {
  29 #endif
  30
  31 #include <shared.h>
  32
  33 typedef unsigned int    uint_t;
  34 typedef unsigned long ulong_t;
  35
  36 #define BITX(u, h, l)   (((u) >> (l)) & ((1lu << ((h) - (l) + 1lu)) - 1lu))
  37
  38 #include <controlregs.h>
  39
  40 extern ulong_t amd64_get_cr2(void);
  41 extern ulong_t amd64_get_cr0(void);
  42 extern ulong_t amd64_get_cr3(void);
  43 extern ulong_t amd64_get_cr4(void);
  44
  45 extern ulong_t amd64_get_eflags(void);
  46
  47 struct amd64_cpuid_regs {
  48         uint32_t r_eax;
  49         uint32_t r_ebx;
  50         uint32_t r_ecx;
  51         uint32_t r_edx;
  52 };
  53
  54 #define AMD64_Auth      0x68747541
  55 #define AMD64_enti      0x69746e65
  56 #define AMD64_cAMD      0x444d4163
  57
  58 extern uint32_t amd64_cpuid_supported(void);
  59 extern void amd64_cpuid_insn(uint32_t, struct amd64_cpuid_regs *);
  60 extern void amd64_rdmsr(uint32_t, uint64_t *);
  61 extern void amd64_wrmsr(uint32_t, const uint64_t *);
  62 extern int get_target_operating_mode(void);
  63
  64 #ifdef  __cplusplus
  65 }
  66 #endif
  67
  68 #endif  /* _AMD64_CPU */