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SubjectRe: [PATCH] x86/PCI: never allocate PCI MMIO resources below BIOS_END
On 04/23/2010 04:05 PM, Bjorn Helgaas wrote:
> On Wednesday 21 April 2010 01:31:20 pm Andy Isaacson wrote:
>> On Tue, Apr 20, 2010 at 10:33:50PM -0700, Yinghai wrote:
>>> Update e820 at first, and later put them resource tree.
>>> Reserved that early, will not be allocated to unassigned PCI BAR
>>>
>>> v3: remove probe_roms() that is not needed, because whole range is reserved
>>> already
>>
>> Test booted this patch series on the problematic t3400, seems to work
>> fine. dmesg attached to bug 15744.
>
> Thanks for testing (again). I'm not confident that this series is
> going to be successful, so I started looking for other approaches.
>
> I can't reproduce the exact problem you're seeing, but in my
> kludged-up attempt, the patch below is enough to keep us from
> assigning the space below 1MB to a device.
>
> Would you guys (Andy & Andy, what a coincidence :-)) mind giving
> it a try? This is intended to work on top of current upstream,
> with no other patches required.
>

This certainly wins from a simplicity standpoint!

-hpa


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