On Wed, 23 May 2007, Jesse Barnes wrote:
>
> After I sent my last message I realized the same thing... though I
> occasionally hear people talk about removing it (I seriously doubt that
> will ever happen). I don't even think there's a way to disable type 1
> config access on Intel chipsets...
Considering that the chipsets still have support for features that
*really* aren't used (and haven't been used in over a decade), I doubt the
conf1 thing is going away any time soon.
Things like: A20 gate, 15-16MB holes, i387 FP exception on irq 13 are
totally pointless in this day and age. Things like the DMA controller are
getting there, along with PS/2 keyboard support.
So there's a lot of things that are likely to be removed before conf1
accesses would. Removing CONF1 accesses would break every single current
OS, they'll do that ten years from now at the earliest.
Linus
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