Changeset 40648 in vbox for trunk/src/VBox/Devices/PC

Timestamp:

Mar 26, 2012 2:18:59 PM (13 years ago)

Author:

vboxsync

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

77078

Message:

Ensure DS has RM limit/attributes.

Location:

trunk/src/VBox/Devices/PC

Files:

• BIOS-new/pmode.inc (modified) (1 diff)
• BIOS/rombios.c (modified) (1 diff)

trunk/src/VBox/Devices/PC/BIOS-new/pmode.inc

@@ -48 +48 @@
 pmode_exit      proc    near
 
+                mov     ax, 28h         ; Ensure RM limit/attributes
+                mov     ds, ax
+
                 mov     eax, cr0
                 and     al, 0FEh

trunk/src/VBox/Devices/PC/BIOS/rombios.c

@@ -11372 +11372 @@
 
 pmode_exit:
+  mov  ax, #0x28
+  mov  ds, ax
   mov  eax, cr0
   and  al, #0xfe