From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e2.ny.us.ibm.com (8.12.11/8.12.11) with ESMTP id j95M6jaF022312 for ; Wed, 5 Oct 2005 18:06:45 -0400 Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by d01relay04.pok.ibm.com (8.12.10/NCO/VERS6.7) with ESMTP id j95M6i08035060 for ; Wed, 5 Oct 2005 18:06:44 -0400 Received: from d01av04.pok.ibm.com (loopback [127.0.0.1]) by d01av04.pok.ibm.com (8.12.11/8.13.3) with ESMTP id j95M6iF5004176 for ; Wed, 5 Oct 2005 18:06:44 -0400 Subject: Re: sparsemem & sparsemem extreme question From: Dave Hansen In-Reply-To: <20051005180443.GC10204@osiris.ibm.com> References: <20051005063909.GA9699@osiris.boeblingen.de.ibm.com> <1128527554.26009.2.camel@localhost> <20051005155823.GA10119@osiris.ibm.com> <1128528340.26009.8.camel@localhost> <20051005161009.GA10146@osiris.ibm.com> <1128529222.26009.16.camel@localhost> <20051005171230.GA10204@osiris.ibm.com> <1128532809.26009.39.camel@localhost> <20051005174542.GB10204@osiris.ibm.com> <1128535054.26009.53.camel@localhost> <20051005180443.GC10204@osiris.ibm.com> Content-Type: text/plain Date: Wed, 05 Oct 2005 15:06:42 -0700 Message-Id: <1128550002.18249.14.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Heiko Carstens Cc: linux-mm , Bob Picco List-ID: On Wed, 2005-10-05 at 20:04 +0200, Heiko Carstens wrote: > As already mentioned, we will have physical memory with the MSB set. Afaik > the hardware uses this bit to distinguish between different types of memory. > So we are going to have the full 64 bit address space. Is it just the MSB? If so, we can probably just shift it down to some reasonable address. The only issue comes if you really have the whole address space used in some random way. -- Dave -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org