palacios/src/palacios/vmm_lowlevel.asm

   1 ; -*- fundamental -*-
   2
   3
   4 %ifndef VMM_ASM
   5 %define VMM_ASM
   6
   7 %include "vmm_symbol.asm"
   8
   9 EXPORT DisableInts
  10 EXPORT EnableInts
  11
  12 EXPORT GetGDTR
  13 EXPORT GetIDTR
  14 EXPORT GetTR
  15
  16
  17
  18
  19
  20
  21 align 8
  22 DisableInts:
  23         cli
  24         ret
  25
  26
  27 align 8
  28 EnableInts:
  29         sti
  30         ret
  31
  32 align 8
  33 GetGDTR:
  34         push    ebp
  35         mov     ebp, esp
  36         pusha
  37         mov     ebx, [ebp + 8]
  38         sgdt    [ebx]
  39
  40         popa
  41         pop     ebp
  42         ret
  43
  44
  45 align 8
  46 GetIDTR:
  47         push    ebp
  48         mov     ebp, esp
  49         pusha
  50
  51         mov     ebx, [ebp + 8]
  52         sidt    [ebx]
  53
  54         popa
  55         pop     ebp
  56         ret
  57
  58
  59
  60 align 8
  61 GetTR:
  62         push    ebp
  63         mov     ebp, esp
  64         pusha
  65         mov     ebx, [ebp + 8]
  66         str     [ebx]
  67
  68         popa
  69         pop     ebp
  70         ret
  71
  72
  73
  74
  75
  76
  77
  78 %endif