ring on PowerPC

[Bai Shuwei]

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!

best regards!

Buroc

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