Changeset 1336 in vbox for trunk/src/VBox/VMM/PATM

Timestamp:

Mar 8, 2007 4:58:22 PM (18 years ago)

Author:

vboxsync

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

19310

Message:

Forbit execution of v86 code with IF=0.

File:

• trunk/src/VBox/VMM/PATM/PATMA.asm (modified) (2 diffs)

trunk/src/VBox/VMM/PATM/PATMA.asm

@@ -1128 +1128 @@
     jnz     iret_fault1
 
+    test    dword [esp+12], X86_EFL_IF
+    jz      iret_clearIF
+
     ; we can't do an iret to v86 code, as we run with CPL=1. The iret would attempt a protected mode iret and (most likely) fault.
     test    dword [esp+12], X86_EFL_VM
@@ -1138 +1141 @@
     test    dword [esp+8], 2
     jnz     iret_notring0
-
-    test    dword [esp+12], X86_EFL_IF
-    jz      iret_clearIF
 
     ; force ring 1 CS RPL