On Wednesday, May 23, 2007 2:35 pm Alan Cox wrote:
> > One of the reasons why hardware vendors want to move away from
> > traditional accesses is to be able to use the larger config space
> > in PCI-Express, rather than being locked into the 256-byte legacy
> > PCI config space.
>
> Mostly for treacherous computing extensions where subsets of the
> config space can only be accessed by signed machines blessed by your
> favourite movie company and video card vendor...
I hate "trusted" platform garbage as much as the next guy
(where "trusted" means the actual user can't trust it, just the
seller), but I think there are legitimate uses of extended space as
well, PCIe AER uses it iirc, so don't dismiss it on those grounds. :)
Jesse
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