Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932666AbWALSzZ (ORCPT ); Thu, 12 Jan 2006 13:55:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932668AbWALSzZ (ORCPT ); Thu, 12 Jan 2006 13:55:25 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:16612 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S932666AbWALSzY (ORCPT ); Thu, 12 Jan 2006 13:55:24 -0500 Subject: Re: [RFC] [PATCH] sysfs support for Xen attributes From: Arjan van de Ven To: Anthony Liguori Cc: Greg KH , Gerd Hoffmann , "Mike D. Day" , lkml , xen-devel@lists.xensource.com In-Reply-To: <43C6A5B4.80801@us.ibm.com> References: <43C53DA0.60704@us.ibm.com> <20060111230704.GA32558@kroah.com> <43C5A199.1080708@us.ibm.com> <20060112005710.GA2936@kroah.com> <43C5B59C.8050908@us.ibm.com> <43C65196.8040402@suse.de> <1137072089.2936.29.camel@laptopd505.fenrus.org> <43C66ACC.60408@suse.de> <20060112173926.GD10513@kroah.com> <43C6A5B4.80801@us.ibm.com> Content-Type: text/plain Date: Thu, 12 Jan 2006 19:55:19 +0100 Message-Id: <1137092120.2936.55.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 739 Lines: 19 On Thu, 2006-01-12 at 12:53 -0600, Anthony Liguori wrote: > > We wish to make management hypercalls as the root user in userspace > which means we have to go through the kernel. Currently, we do this > by > having /proc/xen/privcmd accept an ioctl() that takes a structure > that > describe the register arguments. The kernel interface allows us to > control who in userspace can execute hypercalls. ioctls on proc is evil though (so is ioctl-on-sysfs). It's a device not a proc file! - 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/