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SubjectRe: [Patch 1/1] x86 pci: Add option to not assign BAR's if not already assigned
On 05/14/2010 03:47 PM, Jesse Barnes wrote:
>
> Wow and they're using cards that want to use I/O space? Funky. It's
> too late to get this into 2.6.34, but that can't be what you were
> expecting... I don't see a problem with getting something like this in
> for 2.6.35.
>

Most cards on the market provide I/O BARs as a convenience to legacy
BIOSes; they don't need the I/O BAR functionality from inside a
full-featured OS. There are a few, key, exceptions, mainly in the form
of legacy-interface devices like UARTs and VGA (note that VGA has its
own routing bits and is therefore unaffected by this problem.)

-hpa


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