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Date: Tue, 30 Oct 2007 23:18:16 -0600
From: "Grant Likely" <grant.likely@secretlab.ca>
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To: "Bai Shuwei" <baishuwei@gmail.com>
Subject: Re: ring on PowerPC
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On 10/30/07, Bai Shuwei <baishuwei@gmail.com> wrote:
> Hi, everyone
>    As we know, the program on the X86 can run on the differnt ring(0, 1, 2,
> 3) and the linux kernel run in the ring 0 and user program in the ring 3.
> And now I want to know wether there is a simple mechanism on the PowerPC
> architecture? thx all!

Powerpc has 2 privilege levels; user and supervisor.  The kernel runs
in supervisor mode, and user-space runs in user mode.

g.

-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195