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Re: [Xen-devel] MTRR issue introduced by c/s 17404

To: "Han, Weidong" <weidong.han@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] MTRR issue introduced by c/s 17404
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Thu, 10 Apr 2008 09:44:25 +0100
Cc: "Su, Disheng" <disheng.su@xxxxxxxxx>
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But that's an existing range that is extended, rather than a new range being
declared. So how come the MTRR code gets confused?

Anyway, its days are numbered since I plan to move it out into hvmloader.
But please send a fix for now.

 -- Keir

On 10/4/08 09:33, "Han, Weidong" <weidong.han@xxxxxxxxx> wrote:

> Due to c/s 17404 reserves one more special page in build_e820map(), MTRR
> can't cover all memory ranges. In order to fix it, need to do relevant
> changing in setup_var_mtrrs() which uses magic number to caculate size.
> It's the second time this issue occurs. It's better to get rid the magic
> number. Thanks!
> 
> Randy (Weidong) 
> 
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