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Date:	Thu, 07 Aug 2008 18:19:19 -0700
From:	"H. Peter Anvin" <hpa@...nel.org>
To:	Zachary Amsden <zach@...are.com>
CC:	Jeremy Fitzhardinge <jeremy@...p.org>,
	Alok Kataria <akataria@...are.com>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	the arch/x86 maintainers <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH]Fix broken VMI in 2.6.27-rc..

Zachary Amsden wrote:
> 
> Using my interplanetary ideas, linking the fixmap at runtime would allow
> optimal placement of the fixmap, any hypervisor areas, vmalloc, and
> pkmap space.  That might allow one to increase the amount of lowmem
> available for direct mapping depending on some platform variables such
> as hypervisor reserved space, physical memory size, APIC present.. those
> aren't known until boot time.  Actually, NCPUs is a good one, since we
> require atomic kmap space dependent on NCPUs, which could be given back
> to linear memory map.
> 
> That might actually be more worthwhile than link time fixed addresses.
> 

Yeah, but that's a huge project.

	-hpa
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