linux-kernel - Re: [PATCH 2/3] Resend: x86-64: Handle SRAT v1 and v2 consistently

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Date:	Fri, 17 Jul 2009 15:10:48 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	Kurt Garloff <garloff@...e.de>,
	Linux kernel list <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, Len Brown <lenb@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 2/3] Resend: x86-64: Handle SRAT v1 and v2 consistently

On Tue, Jul 14, 2009 at 9:58 AM, Kurt Garloff<garloff@...e.de> wrote:
> Hi,
>
> In SRAT v1, we had 8bit proximity domain (PXM) fields; SRAT v2 provides
> 32bits for these. The new fields were reserved before.
> According to the ACPI spec, the OS must disregard reserved fields.
>
> x86-64 was rather inconsistent prior to this patch; it used 8 bits
> for the pxm field in cpu_affinity, but 32 bits in mem_affinity.
> This patch makes it consistent: Either use 8 bits consistently (SRAT
> rev 1 or lower) or 32 bits (SRAT rev 2 or higher).
>
> This is patch 2/3.
>
> Signed-off-by: Kurt Garloff <garloff@...e.de>
> --

for 1, 2

Acked-by: Yinghai Lu <yinghai@...nel.org>

YH
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