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

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Message-Id: <200801210658.04030.ak@suse.de>
Date:	Mon, 21 Jan 2008 06:58:03 +0100
From:	Andi Kleen <ak@...e.de>
To:	Yinghai Lu <Yinghai.Lu@....com>
Cc:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	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 v2


>  {
>  	u32 l, h;
>  
> @@ -661,8 +661,9 @@ static __init int amd_special_default_mt
>  	 * Memory between 4GB and top of mem is forced WB by this magic bit.
>  	 * Reserved before K8RevF, but should be zero there.
>  	 */
> -	if (l & Tom2ForceMemTypeWB)
> -		return 1;
> +	if (l & Tom2Enabled)
> +		if (l & Tom2ForceMemTypeWB)
> +			return 1;

That change is good agreed, but I would suggest to put it into a separate
patch with a description

-Andi
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