linux-kernel - Re: [PATCH] x86_64: update e820 instead of updating end

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Date:	Sun, 20 Jan 2008 16:00:46 -0800
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"H. Peter Anvin" <hpa@...or.com>, "Andi Kleen" <ak@...e.de>,
	LKML <linux-kernel@...r.kernel.org>,
	"Jesse Barnes" <jesse.barnes@...el.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Subject: Re: [PATCH] x86_64: update e820 instead of updating end_pfn

On Jan 20, 2008 1:20 AM, Ingo Molnar <mingo@...e.hu> wrote:
>
> * Yinghai Lu <Yinghai.Lu@....COM> wrote:
>
> > [PATCH] x86_64: update e820 instead of updating end_pfn
> >
> > when mtrr is not covering all e820 table, need to trim the ram, need
> > to update e820
>
> ok, i like this approach even more - applied. Would you like to have a
> shot at adding mtrr_trim_uncached_memory() to 32-bit too? It is affected
> by the same problem (if not more).

for 32 bit, it could use the same mtrr_trim_uncached_memory.

but we need to move mtrr_bp_init calling into setup_arch.

YH

YH
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