Re: [Question] How to represent SYSTEM_RAM in kerenel/resouce.c

Matthew Wilcox
2007-10-03T01:52:42Z

On Wed, Oct 03, 2007 at 10:31:36AM +0900, KAMEZAWA Hiroyuki wrote:
> i386 and x86_64 registers System RAM as IORESOUCE_MEM | IORESOUCE_BUSY.
> ia64 registers System RAM as IORESOURCE_MEM.
>
> Which is better ?

Should probably be BUSY. Non-BUSY regions can have io resources
requested underneath them, but you wouldn't want a PCI device to be
assigned an address which overlaps with physical memory.

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