hiho,
>Look though articles on the
>descriptor cache and system management mode.
>Some related articles at:
>
> http://www.rcollins.org/ddj/ddj.html
Last lines in this article:
"The use of the segment-descriptor cache is highly implementation specific,
meaning the behavior and layout of the segment-descriptor cache is dependant
upon the implementation of the specific microprocessor. Intel doesn't
guarantee that the behavior of the descriptor cache will remain the same from
microprocessor to microprocessor. Therefore, it would be foolhardy to write
any production-quality source code which depends upon this behavior
(except unreal mode)."
>Look into CR4.PVI, Protected mode Virtual Interrupts. This
>may come in handy. There's a paper on it, on rcollins.org
>or x86.org. If I remember right, there's a few gaps that need
>to be filled in. Also, look at VME, which is the virtual mode analog
>to PVI.
>
> http://www.rcollins.org/articles/articles.html
I think, we do not should use the VME and PVI. Ulrich pointed it
out:
>Yet another thing to consider is that the guest OS might want
>to *use* the PVI and/or VME modes itself ;-) Especially in the
>case of Windows as guest this is rather likely, as those modes
>were basically *designed* for Windows
jens
