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  1. /*
  2.  * Copyright (c) 2001-2004 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup amd64
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_amd64_CPU_H_
  36. #define KERN_amd64_CPU_H_
  37.  
  38. #define RFLAGS_IF       (1 << 9)
  39. #define RFLAGS_RF       (1 << 16)
  40.  
  41. #define EFER_MSR_NUM    0xc0000080
  42. #define AMD_SCE_FLAG    0
  43. #define AMD_LME_FLAG    8
  44. #define AMD_LMA_FLAG    10
  45. #define AMD_FFXSR_FLAG  14
  46. #define AMD_NXE_FLAG    11
  47.  
  48. /* MSR registers */
  49. #define AMD_MSR_STAR    0xc0000081
  50. #define AMD_MSR_LSTAR   0xc0000082
  51. #define AMD_MSR_SFMASK  0xc0000084
  52. #define AMD_MSR_FS      0xc0000100
  53. #define AMD_MSR_GS      0xc0000101
  54.  
  55. #ifndef __ASM__
  56.  
  57. #include <typedefs.h>
  58. #include <arch/pm.h>
  59.  
  60. typedef struct {
  61.     int vendor;
  62.     int family;
  63.     int model;
  64.     int stepping;
  65.     struct tss *tss;
  66.    
  67.     count_t iomapver_copy;  /** Copy of TASK's I/O Permission bitmap generation count. */
  68. } cpu_arch_t;
  69.  
  70. struct star_msr {
  71.    
  72. };
  73.  
  74. struct lstar_msr {
  75.    
  76. };
  77.  
  78. extern void set_efer_flag(int flag);
  79. extern uint64_t read_efer_flag(void);
  80. void cpu_setup_fpu(void);
  81.  
  82. #endif /* __ASM__ */
  83.  
  84. #endif
  85.  
  86. /** @}
  87.  */
  88.