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

From: H. Peter Anvin
Date: Tue Jun 08 2010 - 20:54:10 EST

On 06/02/2010 08:53 AM, Jesse Barnes wrote:
>> That's what I thought, which I guess means my original question to Mike
>> still stands...
> I thought the whole reason for this was hotplug; we don't want to
> exhaust I/O space unnecessarily by allocating resources for BARs the
> BIOS didn't assign so we can keep them around for later hotplug
> activity.
> If there's some other issue, it's not too late to drop this patch.

Okay, now... this means that if a device that the BIOS doesn't know
about, but which needs I/O addresses, then it will work if hotplugged,
but not if it is plugged in on system boot?


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

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