Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751164AbWIMUJA (ORCPT ); Wed, 13 Sep 2006 16:09:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751163AbWIMUJA (ORCPT ); Wed, 13 Sep 2006 16:09:00 -0400 Received: from gw.goop.org ([64.81.55.164]:31442 "EHLO mail.goop.org") by vger.kernel.org with ESMTP id S1751164AbWIMUJA (ORCPT ); Wed, 13 Sep 2006 16:09:00 -0400 Message-ID: <45086553.4090804@goop.org> Date: Wed, 13 Sep 2006 13:08:51 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 1.5.0.5 (X11/20060907) MIME-Version: 1.0 To: "linux-os (Dick Johnson)" CC: Linus Torvalds , Ingo Molnar , Andi Kleen , "Eric W. Biederman" , Arjan van de Ven , Zachary Amsden , Linux Kernel Mailing List , Michael A Fetterman Subject: Re: Assignment of GDT entries References: <450854F3.20603@goop.org> In-Reply-To: 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: 740 Lines: 21 linux-os (Dick Johnson) wrote: > The entries 1 through 3 are used during the boot sequence, see > setup.S, search for "gdt" around line 983. > OK, but that's an early GDT used during boot, which shouldn't have any bearing on the GDT of the running kernel. > I can't imagine a reason why you'd want to do this. > I'm looking at packing all the descriptors together so they share a cache line, and therefore reduce the likelihood of a cache miss when loading a segment register. J - 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/