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

Linus Torvalds
2007-05-23T22:18:41Z

On Wed, 23 May 2007, Jesse Barnes wrote:
> >
> > How are those boards going to set up mmconfig? The whole standard is
> > broken, since there is no way to set it up.
> >
> > Trust the firmware? What a piece of crap!
>
> What do you mean? You set it up the normal way, by poking at config
> space to see what's there

HOW DO YOU GET TO THE CONFIG SPACE IN THE FIRST PLACE?

The reason mmconfig is *BROKEN*CRAP* is that you cannot bootstrap it.
There's no standard way to even figure out WHERE IT IS!

So we depend on firmware tables that are known to be broken!

That crap should be seen for the crap it is! Dammit, how hard can it be to
just admit that mmconfig isn't that great?

Linus