Changeset 49893 in vbox for trunk/src/VBox/VMM/VMMRC/VMMRCA.asm

Timestamp:

Dec 13, 2013 12:40:20 AM (11 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

91271

Message:

MSR rewrite: initial hacking - half disabled.

File:

• trunk/src/VBox/VMM/VMMRC/VMMRCA.asm (modified) (4 diffs)

trunk/src/VBox/VMM/VMMRC/VMMRCA.asm

@@ -235 +235 @@
     pushf
     cli
+    push    esi
+    push    edi
+    push    ebx
+    push    ebp
 
     mov     ecx, [ebp + 8]              ; The MSR to read.
@@ -247 +251 @@
     mov     [ecx + 4], edx
 
+    mov     eax, 1
+.return:
+    pop     ebp
+    pop     ebx
+    pop     edi
+    pop     esi
     popf
-    mov     eax, 1
     leave
     ret
 
 .trapped:
-    popf
     mov     eax, 0
-    leave
-    ret
+    jmp     .return
 ENDPROC vmmRCSafeMsrRead
 
@@ -271 +278 @@
     pushf
     cli
+    push    esi
+    push    edi
+    push    ebx
+    push    ebp
 
     mov     ecx, [ebp + 8]              ; The MSR to write to.
@@ -279 +290 @@
     wrmsr
 
+    mov     eax, 1
+.return:
+    pop     ebp
+    pop     ebx
+    pop     edi
+    pop     esi
     popf
-    mov     eax, 1
     leave
     ret
 
 .trapped:
-    popf
     mov     eax, 0
-    leave
-    ret
+    jmp     .return
 ENDPROC vmmRCSafeMsrWrite