Improving the kernel/i386 timecounter performance (GSoC proposal)

[Joerg Sonnenberger]

On Mon, Mar 30, 2009 at 07:32:42AM +0000, Poul-Henning Kamp wrote:
> On systems where the ACPI or HPET hardware can be memory-mapped, I should
> be equally possible to map those read-only into userland processes.

Both are IO memory and contain other data. There is also the question of
how "undefined" is implemented for locked bus cycles to them...

Joerg