Author Topic: Privilege level  (Read 2365 times)

Offline alexBishop

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Privilege level
« on: January 20, 2011, 10:14:54 AM »
How do I change the privilege level and also the i/o privilege level?  ???

Offline Frank Kotler

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Re: Privilege level
« Reply #1 on: January 21, 2011, 02:15:01 PM »
I believe privilege level is determined by a couple bits in the descriptor. I/O privilege level is a bitmap, I think. The Intel/AMD manuals should have complete information. For "system" code (as opposed to "user" code), the OS development guys have got a lot of information:

http://wiki.osdev.org/Main_Page

...maybe start with "Context switching" for this(?)...

Best,
Frank