linux-kernel - Re: [PATCH]Fix broken VMI in 2.6.27-rc..

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Message-ID: <489B836A.3050209@goop.org>
Date:	Thu, 07 Aug 2008 16:21:14 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Zachary Amsden <zach@...are.com>
CC:	"H. Peter Anvin" <hpa@...nel.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:
> Or we could remove the dependency on max_low_pfn and just create a
> liberal linear to physical mapping for lomem which spans all possible
> low memory; then it doesn't matter so much where it is called.
>   

Yes.  You could just call reserve_top_address() at a suitably early 
point to reserve the space.  Its a pvops API call which has been there 
since patch one or two of pvops.

It does exactly what the rest of this thread discusses, rendering it moot.

    J
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