X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm_lowlevel.asm;h=c407a8e6043d6790f290de8252739d0f82356ad4;hb=a1a2be8eb002e13b1eb6ccaca40e4396f8816402;hp=4731571ce85ec3e94b941ca2f6e6d20049880365;hpb=a109eb919a162bd7de58d62020801bc2e633be50;p=palacios.releases.git

diff --git a/palacios/src/palacios/svm_lowlevel.asm b/palacios/src/palacios/svm_lowlevel.asm
index 4731571..c407a8e 100644
--- a/palacios/src/palacios/svm_lowlevel.asm
+++ b/palacios/src/palacios/svm_lowlevel.asm
@@ -1,5 +1,7 @@
 ;  -*- fundamental -*-
 
+;; (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+;; (c) 2008, The V3VEE Project <http://www.v3vee.org>
 
 %ifndef SVM_ASM
 %define SVM_ASM
@@ -11,10 +13,8 @@ SVM_ERROR equ 0xFFFFFFFF
 SVM_SUCCESS equ 0x00000000
 
 EXPORT DisableInts
+EXPORT EnableInts
 
-EXPORT GetGDTR
-EXPORT GetIDTR
-EXPORT GetTR
 
 EXPORT exit_test
 
@@ -23,6 +23,8 @@ EXTERN handle_svm_exit
 EXPORT launch_svm
 EXPORT safe_svm_launch
 
+EXPORT STGI
+EXPORT CLGI
 
 
 
@@ -81,6 +83,14 @@ 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 +103,20 @@ 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 +150,8 @@ safe_svm_launch:
 	push	ebp
 	mov	ebp, esp
 	pushf
+	push    fs
+	push    gs
 	pusha   				;; Save Host state
 
 
@@ -188,6 +175,8 @@ safe_svm_launch:
 	add	esp, 4				;; skip past the gpr ptr
 	
 	popa			  		;; Restore Host state
+	pop     gs
+	pop     fs
 	popf
 	pop 	ebp
 	ret