From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 08 Jun 2000 16:58:13 -0500 From: Timur Tabi References: <20000608220756Z131165-245+106@kanga.kvack.org> In-Reply-To: <20000608224744.E3886@redhat.com> References: <20000608220756Z131165-245+106@kanga.kvack.org>; from ttabi@interactivesi.com on Thu, Jun 08, 2000 at 04:44:21PM -0500 Subject: Re: Allocating a page of memory with a given physical address Message-Id: <20000608222138Z131165-281+94@kanga.kvack.org> Sender: owner-linux-mm@kvack.org Return-Path: To: Linux MM mailing list List-ID: ** Reply to message from "Stephen C. Tweedie" on Thu, 8 Jun 2000 22:47:44 +0100 > No, nor is it likely to be added without a compelling reason. Why do > you need this? Unfortunately, it's part of my company's upcoming product, and I can't give a detailed explanation. I understand that such a response does not endear me to the Linux community, but my hands are tied. All I can say is that all of us software guys here have given it a lot of thought, and we're absolutely positive that we need this functionality. We need to be able to read/write memory to specific DIMMs. In fact, it's one of the reasons why we support only Windows 2000, not Windows NT or 95/98, because those older products don't have this kind of feature. Hmmm... I just thought of something. Knowing that there's a direct linear mapping between virtual memory and physical memory in kernel space, I could simply allocate a block of memory at a specific virtual address. Would that be any easier? -- Timur Tabi - ttabi@interactivesi.com Interactive Silicon - http://www.interactivesi.com -- 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.eu.org/Linux-MM/