Changeset 55158 in vbox for trunk/doc/manual
- Timestamp:
- Apr 9, 2015 11:41:09 AM (10 years ago)
- File:
-
- 1 edited
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trunk/doc/manual/en_US/user_Technical.xml
r55149 r55158 743 743 <para>There are certain flaws in the implementation of ring 1 in the 744 744 x86 architecture that were never fixed. Certain instructions that 745 <emphasis>should</emphasis> trap in ring 1 don't. This affect for746 example the LGDT/SGDT, LIDT/SIDT, or POPF/PUSHF instruction pairs.745 <emphasis>should</emphasis> trap in ring 1 don't. This affect, for 746 example, the LGDT/SGDT, LIDT/SIDT, or POPF/PUSHF instruction pairs. 747 747 Whereas the "load" operation is privileged and can therefore be 748 748 trapped, the "store" instruction always succeed. If the guest is
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