Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753267AbXJ2LUZ (ORCPT ); Mon, 29 Oct 2007 07:20:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751829AbXJ2LUP (ORCPT ); Mon, 29 Oct 2007 07:20:15 -0400 Received: from michael.checkpoint.com ([194.29.32.68]:38312 "EHLO michael.checkpoint.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750848AbXJ2LUO (ORCPT ); Mon, 29 Oct 2007 07:20:14 -0400 Message-ID: <4725C1EB.10205@checkpoint.com> Date: Mon, 29 Oct 2007 13:20:11 +0200 From: Yoav Artzi User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Linux kernel memory and split on 64-bit machines Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 657 Lines: 25 Hi, I am researching now about the Linux kernel memory on 64-bit (x86_64) machines. I am looking into answering the following questions: 1. Is there a user-kernel split on 64-bit memories? If so, how is it done? What is the size of each part? 2. Does kernel high memory exists on 64-bit machines? 3. How is it possible to detect in runtime the split and the size of the physical memory? Thanks, Yoav - 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/