Re: [Patch 1/1] x86 pci: Add option to not assign BAR's if not alreadyassigned

[H. Peter Anvin]

On 05/31/2010 04:12 AM, Mike Travis wrote:
> 
> BIOS still assigns the MMIO BAR's so the devices are alive.

OK, so it sounds like the *real* problem is our behavior on address
space exhaustion: it is rather common that a driver will only use one
BAR/address space, and sometimes can even choose which address space to
use.  The right thing would be to defer error until a particular BAR is
requested by the device driver, but I'm not sure if our interfaces
permits that (and I'm on my way to the airport right now so I can't
check...)

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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