Changeset 47242 in vbox for trunk/src/VBox

Timestamp:

Jul 19, 2013 12:16:13 AM (11 years ago)

Author:

vboxsync

Message:

Another CPL update. SS.RPL may not be the same as CPL in 64-bit mode on AMD(-V?) systems.

File:

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

trunk/src/VBox/VMM/VMMAll/CPUMAllRegs.cpp

@@ -2857 +2857 @@
      *         instruction to figure out whether SS:ESP are part of the frame
      *         or not.  VBox or qemu bug must've lead to this misconception.
+     *
+     * Update2: On an AMD bulldozer system here, I've no trouble loading a null
+     *         selector into SS with an RPL other than the CPL when CPL != 3 and
+     *         we're in 64-bit mode.  The intel dev box doesn't allow this, on
+     *         RPL = CPL.  Weird.
      */
     uint32_t uCpl;