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
  11 EXPORT GetGDTR
  12 EXPORT GetIDTR
  13 EXPORT GetTR
  14
  15
  16
  17
  18
  19
  20 align 8
  21 DisableInts:
  22         cli
  23         ret
  24
  25
  26 align 8
  27 GetGDTR:
  28         push    ebp
  29         mov     ebp, esp
  30         pusha
  31         mov     ebx, [ebp + 8]
  32         sgdt    [ebx]
  33
  34         popa
  35         pop     ebp
  36         ret
  37
  38
  39 align 8
  40 GetIDTR:
  41         push    ebp
  42         mov     ebp, esp
  43         pusha
  44
  45         mov     ebx, [ebp + 8]
  46         sidt    [ebx]
  47
  48         popa
  49         pop     ebp
  50         ret
  51
  52
  53
  54 align 8
  55 GetTR:
  56         push    ebp
  57         mov     ebp, esp
  58         pusha
  59         mov     ebx, [ebp + 8]
  60         str     [ebx]
  61
  62         popa
  63         pop     ebp
  64         ret
  65
  66
  67
  68
  69
  70
  71
  72 %endif