Re: [PATCH] x86/pci: make pci_mem_start to be aligned only -v4

[Ivan Kokshaysky]

On Sat, Apr 18, 2009 at 09:14:25PM +0200, Ingo Molnar wrote:
> This way we intentionally create a 'free physical address space' 
> hole space that is the same as the rounding logic. No rounding 
> needed anywhere - as all the remaining address space is well-rounded 
> already. Plus we'd also _see_ all our rounding logic by looking at 
> the '(guard)' entries.
> 
> Or maybe there's some aspect of gap-rounding that cannot be 
> expressed in such a static way?

My gut feeling is that you guys do overcomplicate a simple issue
which can be fixed with a one-liner like this:

	pci_mem_start = pci_mem_start < 0xc0000000 ? : 0xc0000000;

This 0xc0000000 (3G) seems to be a pretty fundamental thing for certain
32-bit OS. ;-)

Ivan.
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