Re: [RFC PATCH] PCI MMCONFIG: add validation against ACPI motherboard resources

Jeff Garzik
2007-05-23T21:35:42Z

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...

Um, no, Mr. Paranoia, it's a standard part of the spec.

Jeff