[LinuxBIOS] RFC Winflashrom Architecture -- Current device driver (testbed)

Jeremy Jackson jerj at coplanar.net
Mon Jun 11 19:38:07 CEST 2007

On Mon, 2007-06-11 at 18:23 +0200, Stefan Reinauer wrote:

> > The chip driver also interacts with Linux /dev/iomem to reflect the
> > current setting of the optional enables.

I meant to say /proc/iomem here, how about a do-over?
> In the kernel you don't have to use /dev/iomem, you can just inb/outb
> directly (which is what /dev/iomem does)
> > It should also update the below 1MB (and maybe below 16MB) aliases
> > in /proc/iomem, according to their actual status in the hardware.  For
> > example, the K8 northbridge fixed MTRRs could be disabled, rendering any
> > aliasing of the southbridge or LPC/FWH parts moot (from the processor's
> > perspective at least)
> How is this thing done today? Is it part of the e820 table? Or does
> Linux hardcode that area?
> Stefan

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