Re: Switching between privileged levels in 80386

From: Tim Roberts <spamtrap@xxxxxxxxxx>
Date: Wed, 31 Jan 2007 06:36:02 GMT

spamtrap@xxxxxxxxxx wrote:

how to switch from low privilege level to higher level(PL3 to PL0) in
80386.. I am using interrupts to switch from PL3 to PL0. But once
interrupt is generated in PL3 its not going to PL0. I am using the
IDT .....

Interrupts, syscalls, call gates, and exceptions are all reasonable ways to
transfer from ring 3 to ring 0.
--
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.

.

References:
- Switching between privileged levels in 80386
  - From: spamtrap

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