Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934263AbXHVXOv (ORCPT ); Wed, 22 Aug 2007 19:14:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1763259AbXHVXOl (ORCPT ); Wed, 22 Aug 2007 19:14:41 -0400 Received: from gw.goop.org ([64.81.55.164]:39625 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761913AbXHVXOk (ORCPT ); Wed, 22 Aug 2007 19:14:40 -0400 Message-ID: <46CCC361.6020600@goop.org> Date: Wed, 22 Aug 2007 16:14:41 -0700 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.5 (X11/20070719) MIME-Version: 1.0 To: James Courtier-Dutton CC: Chris Wright , Zachary Amsden , Andrew Morton , Linux Kernel Mailing List , Virtualization Mailing List , Rusty Russell , Avi Kivity Subject: Re: [PATCH] Add I/O hypercalls for i386 paravirt References: <46CBC842.4070100@vmware.com> <46CCB088.8070606@goop.org> <46CCB56F.8090308@superbug.co.uk> <20070822222036.GD3672@sequoia.sous-sol.org> <46CCB8BA.6060007@superbug.demon.co.uk> In-Reply-To: <46CCB8BA.6060007@superbug.demon.co.uk> X-Enigmail-Version: 0.95.3 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 666 Lines: 16 James Courtier-Dutton wrote: > Ok, so I need to get a new CPU like the Intel Core Duo that has VT > features? I have an old Pentium 4 at the moment, without any VT features. > No, VT-d (as opposed to VT) is a chipset feature which allows the hypervisor to control who's allowed to DMA where. So you'd need a very new machine with a VT-d capable chipset (which would also have VT, since all new processors do). 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/