palacios/src/geekos/svm_lowlevel.asm

   1 ;  -*- fundamental -*-
   2
   3
   4 %ifndef SVM_ASM
   5 %define SVM_ASM
   6
   7 %include "defs.asm"
   8 %include "symbol.asm"
   9
  10
  11
  12 EXPORT launch_svm
  13
  14
  15 [BITS 32]
  16
  17 %macro vmrun 0
  18         db      00fh, 001h, 0d8h
  19 %endmacro
  20
  21
  22 ;VMRUN  equ db 0Fh, 01h, D8h
  23 ;VMLOAD equ db 0x0F,0x01,0xDA
  24 ;VMSAVE equ db 0x0F,0x01,0xDB
  25 ;STGI   equ db 0x0F,0x01,0xDC
  26 ;CLGI   equ db 0x0F,0x01,0xDD
  27
  28
  29
  30
  31 ; I think its safe to say that there are some pretty serious register issues...
  32 launch_svm:
  33         push    ebp
  34         mov     ebp, esp
  35         pusha
  36
  37         mov     eax, [ebp + 8]
  38         vmrun
  39 ;       db      00fh, 001h, 0d8h
  40         popa
  41         pop     ebp
  42         ret
  43
  44 %endif
  45
  46
  47
  48
  49 ; eventual svm_launch
  50 ;   pusha
  51 ;   pushf
  52 ;
  53 ; .vmm_loop
  54 ;       vmrun
  55 ;       push guest GPRs
  56 ;       call handle_svm_exit
  57 ;       jz .vmm_loop
  58 ;  popf
  59 ;  popa
  60 ;  ret
  61 ;
  62 ;
  63 ;