Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265066AbUAGGqT (ORCPT ); Wed, 7 Jan 2004 01:46:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266141AbUAGGqT (ORCPT ); Wed, 7 Jan 2004 01:46:19 -0500 Received: from fw.osdl.org ([65.172.181.6]:49608 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S265066AbUAGGqR (ORCPT ); Wed, 7 Jan 2004 01:46:17 -0500 Date: Tue, 6 Jan 2004 22:45:38 -0800 (PST) From: Linus Torvalds To: Dave Jones cc: Andi Kleen , Adam Belay , Mika Penttil? , Andi Kleen , David Hinds , linux-kernel@vger.kernel.org, Andrew Morton , "Grover, Andrew" Subject: Re: PCI memory allocation bug with CONFIG_HIGHMEM In-Reply-To: <20040107060842.GA22884@redhat.com> Message-ID: References: <3FFA7BB9.1030803@kolumbus.fi> <20040106094442.GB44540@colin2.muc.de> <20040106153706.GA63471@colin2.muc.de> <20040106222959.GA3188@neo.rr.com> <20040107050256.GA4351@colin2.muc.de> <20040107055557.GA13812@redhat.com> <20040107060842.GA22884@redhat.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 856 Lines: 23 On Wed, 7 Jan 2004, Dave Jones wrote: > > But PNPBIOS is an ISA relic isn't it ? It still shows up. BIOSes use it exactly to tell the system about reserved magic IO regions (like the IO registers that are reserved for ACPI). ISA may be gone, but the crap it left behind lingers on. The BIOS writers know that they can affect windows IO region allocation with it, so they still do - to make sure windows boots even when the hardware has some strange IO resource allocations. And yes, that is likely to be an issue on x86-64 too.. As far as windows is concerned, it's just another 32-bit CPU. Linus - 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/