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

KAMEZAWA Hiroyuki
2007-10-03T04:57:02Z

On Tue, 2 Oct 2007 19:52:42 -0600
Matthew Wilcox <matthew@wil.cx> wrote:

> 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.

Thank you.
It seems that I'll have to try modifing ia64 and memory hotplug in
the next -mm.

Regards,
-Kame