Changeset 4057 in vbox for trunk/src/VBox/VMM/PATM/PATM.cpp

Timestamp:

Aug 7, 2007 10:05:48 AM (18 years ago)

Author:

vboxsync

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

23493

Message:

Don't allow popf instructions to change the current IOPL in simple (cli) patches. (see defect 2042)

File:

• trunk/src/VBox/VMM/PATM/PATM.cpp (modified) (1 diff)

trunk/src/VBox/VMM/PATM/PATM.cpp

@@ -1757 +1757 @@
 
         /* Not an exit point for IDT handler or function replacement patches */
+        /* Note: keep IOPL in mind when changing any of this!! (see comments in PATMA.asm, PATMPopf32Replacement) */
         if (pPatch->flags & (PATMFL_IDTHANDLER|PATMFL_DUPLICATE_FUNCTION))
             fGenerateJmpBack = false;