Re: [PATCH] pci: Allow very large resource windows

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On Fri, Jul 11, 2014 at 11:00 AM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
>
> I explained why I think it is dangerous in the paragraph "With
> 'r->flags = 0', ..." above.  This a question of how the hardware
> behaves, so if you think I'm wrong, you need to point out something in
> the spec that says the hardware works differently than how I think it
> does.

If the BAR have all 0, cpu can not access it as hw will forward access to ram
controller according to routing table.

Yinghai
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