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[palacios.git] / palacios / src / palacios / svm_lowlevel.asm

diff --git a/palacios/src/palacios/svm_lowlevel.asm b/palacios/src/palacios/svm_lowlevel.asm
index 4731571..9e60835 100644 (file)
--- a/palacios/src/palacios/svm_lowlevel.asm
+++ b/palacios/src/palacios/svm_lowlevel.asm
@@ -11,10 +11,8 @@ SVM_ERROR equ 0xFFFFFFFF
 SVM_SUCCESS equ 0x00000000
 
 EXPORT DisableInts
+EXPORT EnableInts
 
-EXPORT GetGDTR
-EXPORT GetIDTR
-EXPORT GetTR
 
 EXPORT exit_test
 
@@ -23,6 +21,8 @@ EXTERN handle_svm_exit
 EXPORT launch_svm
 EXPORT safe_svm_launch
 
+EXPORT STGI
+EXPORT CLGI
 
 
 
@@ -81,6 +81,14 @@ SVM_HANDLER_HALT equ 0x2
        db      00fh, 001h, 0dah
 %endmacro
 
+%macro stgi 0
+       db      00fh, 001h, 0dch
+%endmacro
+
+%macro clgi 0
+       db      00fh, 001h, 0ddh
+%endmacro
+
 ;VMRUN  equ db 0Fh, 01h, D8h
 ;VMLOAD equ db 0x0F,0x01,0xDA
 ;VMSAVE equ db 0x0F,0x01,0xDB
@@ -93,45 +101,20 @@ DisableInts:
        cli
        ret
 
-
 align 8
-GetGDTR:
-       push    ebp
-       mov     ebp, esp
-       pusha   
-       mov     ebx, [ebp + 8]
-       sgdt    [ebx]
-       
-       popa
-       pop     ebp
+EnableInts:
+       sti
        ret
 
 
 align 8
-GetIDTR:
-       push    ebp
-       mov     ebp, esp
-       pusha   
-
-       mov     ebx, [ebp + 8]
-       sidt    [ebx]
-       
-       popa
-       pop     ebp
+CLGI:
+       clgi
        ret
 
-
-
 align 8
-GetTR:
-       push    ebp
-       mov     ebp, esp
-       pusha   
-       mov     ebx, [ebp + 8]
-       str     [ebx]
-       
-       popa
-       pop     ebp
+STGI:
+       stgi
        ret
 
 
@@ -165,6 +148,8 @@ safe_svm_launch:
        push    ebp
        mov     ebp, esp
        pushf
+       push    fs
+       push    gs
        pusha                                   ;; Save Host state
 
 
@@ -188,6 +173,8 @@ safe_svm_launch:
        add     esp, 4                          ;; skip past the gpr ptr
        
        popa                                    ;; Restore Host state
+       pop     gs
+       pop     fs
        popf
        pop     ebp
        ret