Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752349AbZIQOQ7 (ORCPT ); Thu, 17 Sep 2009 10:16:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751805AbZIQOQz (ORCPT ); Thu, 17 Sep 2009 10:16:55 -0400 Received: from mail-fx0-f217.google.com ([209.85.220.217]:64570 "EHLO mail-fx0-f217.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751003AbZIQOQy convert rfc822-to-8bit (ORCPT ); Thu, 17 Sep 2009 10:16:54 -0400 MIME-Version: 1.0 In-Reply-To: <4AB1A8FD.2010805@gmail.com> References: <4AAFF437.7060100@gmail.com> <4AB0A070.1050400@redhat.com> <4AB0CFA5.6040104@gmail.com> <4AB0E2A2.3080409@redhat.com> <4AB0F1EF.5050102@gmail.com> <4AB10B67.2050108@redhat.com> <4AB13B09.5040308@gmail.com> <4AB151D7.10402@redhat.com> <4AB1A8FD.2010805@gmail.com> Date: Thu, 17 Sep 2009 09:16:56 -0500 Message-ID: <90eb1dc70909170716i5de0b909tf69c93e679f5fbc8@mail.gmail.com> Subject: Re: [PATCHv5 3/3] vhost_net: a kernel-level virtio server From: Javier Guerra To: Gregory Haskins Cc: Avi Kivity , "Michael S. Tsirkin" , "Ira W. Snyder" , netdev@vger.kernel.org, virtualization@lists.linux-foundation.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@elte.hu, linux-mm@kvack.org, akpm@linux-foundation.org, hpa@zytor.com, Rusty Russell , s.hetze@linux-ag.com, alacrityvm-devel@lists.sourceforge.net Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1033 Lines: 24 On Wed, Sep 16, 2009 at 10:11 PM, Gregory Haskins wrote: > It is certainly not a requirement to make said > chip somehow work with existing drivers/facilities on bare metal, per > se.  Why should virtual systems be different? i'd guess it's an issue of support resources. a hardware developer creates a chip and immediately sells it, getting small but assured revenue, with it they write (or pays to write) drivers for a couple of releases, and stop to manufacture it as soon as it's not profitable. software has a much longer lifetime, especially at the platform-level (and KVM is a platform for a lot of us). also, being GPL, it's cheaper to produce but has (much!) more limited resources. creating a new support issue is a scary thought. -- Javier -- 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/