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SubjectRe: GGI Project Unhappy On Linux
Followup to:  <>
By author: Matthew Kirkwood <>
In newsgroup:
> >
> > > A process running at ring 0 can still disable interrupts, DMA into
> > > kernel memory, etc...
> >
> > But the Xserver isn't running in the kernel mode.
> I may have missed something, but the difference between iopl 3 and "kernel
> mode" is...?

Huge. IOPL 3 is just user mode with full access to the hardware, but
not, for example, to kernel memory.

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