initial SVM guest running

[palacios.git] / palacios / src / geekos / lowlevel.asm

diff --git a/palacios/src/geekos/lowlevel.asm b/palacios/src/geekos/lowlevel.asm
index f90212c..c530a5c 100644 (file)
--- a/palacios/src/geekos/lowlevel.asm
+++ b/palacios/src/geekos/lowlevel.asm
@@ -2,7 +2,7 @@
 ; Low level interrupt/thread handling code for GeekOS.
 ; Copyright (c) 2001,2003,2004 David H. Hovemeyer <daveho@cs.umd.edu>
 ; Copyright (c) 2003, Jeffrey K. Hollingsworth <hollings@cs.umd.edu>
-; $Revision: 1.2 $
+; $Revision: 1.3 $
 
 ; This is free software.  You are permitted to use,
 ; redistribute, and modify it as specified in the file "COPYING".
@@ -279,9 +279,15 @@ cpuid_edx:
        push    ebp
        mov     ebp, esp
        push    edx
+       push    ecx
+       push    ebx
+
        mov     eax, [ebp + 8]
        cpuid
        mov     eax, edx
+
+       pop     ebx
+       pop     ecx
        pop     edx
        pop     ebp
        ret
@@ -294,11 +300,17 @@ align 8
 cpuid_ecx:
        push    ebp
        mov     ebp, esp
+       push    edx
        push    ecx
+       push    ebx
+
        mov     eax, [ebp + 8]
        cpuid
        mov     eax, ecx
+
+       pop     ebx
        pop     ecx
+       pop     edx
        pop     ebp
        ret
 
@@ -307,8 +319,19 @@ cpuid_ecx:
 ;
 align 8
 cpuid_eax:
+       push    ebp
+       mov     ebp, esp
+       push    edx
+       push    ecx
+       push    ebx
+
        mov     eax, [esp+4]
        cpuid
+
+       pop     ebx
+       pop     ecx
+       pop     edx
+       pop     ebp
        ret
 
 ;