Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758728AbYCYQmg (ORCPT ); Tue, 25 Mar 2008 12:42:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757903AbYCYQmK (ORCPT ); Tue, 25 Mar 2008 12:42:10 -0400 Received: from outbound-sin.frontbridge.com ([207.46.51.80]:33596 "EHLO outbound5-sin-R.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757796AbYCYQmI (ORCPT ); Tue, 25 Mar 2008 12:42:08 -0400 X-BigFish: VP X-MS-Exchange-Organization-Antispam-Report: OrigIP: 163.181.251.22;Service: EHS X-WSS-ID: 0JYAP1N-01-JWB-01 Date: Tue, 25 Mar 2008 17:41:54 +0100 From: Andreas Herrmann To: Jack Steiner Cc: mingo@elte.hu, ak@suse.de, tglx@linutronix.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] - Increase max physical memory size of x86_64 Message-ID: <20080325164154.GA5909@alberich.amd.com> References: <20080321133157.GA10911@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080321133157.GA10911@sgi.com> User-Agent: Mutt/1.5.16 (2007-06-09) X-OriginalArrivalTime: 25 Mar 2008 16:41:52.0754 (UTC) FILETIME=[21281520:01C88E97] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 597 Lines: 20 On Fri, Mar 21, 2008 at 08:31:57AM -0500, Jack Steiner wrote: > Increase the maximum physical address size of x86_64 system > to 44-bits. This is in preparation for future chips that > support larger physical memory sizes. Shouldn't this be increased to 48? AMD family 10h CPUs actually support 48 bits for the physical address. Regards, Andreas -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/