Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932322AbXHVQVi (ORCPT ); Wed, 22 Aug 2007 12:21:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1764981AbXHVQV0 (ORCPT ); Wed, 22 Aug 2007 12:21:26 -0400 Received: from smtp-outbound-1.vmware.com ([65.113.40.141]:40725 "EHLO smtp-outbound-1.vmware.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1765004AbXHVQVZ (ORCPT ); Wed, 22 Aug 2007 12:21:25 -0400 Message-ID: <46CC6150.6050105@vmware.com> Date: Wed, 22 Aug 2007 09:16:16 -0700 From: Zachary Amsden User-Agent: Thunderbird 2.0.0.6 (X11/20070728) MIME-Version: 1.0 To: Avi Kivity CC: Andrew Morton , Linux Kernel Mailing List , Virtualization Mailing List , Rusty Russell , Chris Wright , Jeremy Fitzhardinge Subject: Re: [PATCH] Add I/O hypercalls for i386 paravirt References: <46CBC842.4070100@vmware.com> <46CBCADF.2070400@qumranet.com> <46CBCC58.3010700@vmware.com> <46CBF5DD.6040300@qumranet.com> In-Reply-To: <46CBF5DD.6040300@qumranet.com> 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: 639 Lines: 16 Avi Kivity wrote: > > Since this is only for newer kernels, won't updating the driver to use > a hypercall be more efficient? Or is this for existing out-of-tree > drivers? Actually, it is for in-tree drivers that we emulate but don't want to pollute, and one out of tree driver (that will hopefully be in tree soon!) that has no way to determine if making hypercalls is acceptable. Zach - 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/