From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755937AbZIUKLH (ORCPT ); Mon, 21 Sep 2009 06:11:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755918AbZIUKLE (ORCPT ); Mon, 21 Sep 2009 06:11:04 -0400 Received: from mga12.intel.com ([143.182.124.36]:46675 "EHLO azsmga102.ch.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755907AbZIUKLD (ORCPT ); Mon, 21 Sep 2009 06:11:03 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.44,424,1249282800"; d="scan'208";a="189812889" Date: Mon, 21 Sep 2009 11:06:38 +0100 From: Alan Cox To: Anthony Liguori Cc: Amit Shah , rusty@rustcorp.com.au, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] virtio_console: Add support for multiple ports for generic guest and host communication Message-ID: <20090921110638.02a2e3e1@linux.intel.com> In-Reply-To: <4AB3C988.2040303@codemonkey.ws> References: <1252678386-17404-1-git-send-email-amit.shah@redhat.com> <1252678386-17404-2-git-send-email-amit.shah@redhat.com> <20090911170010.34c80f2d@linux.intel.com> <20090911163806.GB25535@amit-x200.redhat.com> <4AAA8838.1080106@codemonkey.ws> <20090911173307.GB27046@amit-x200.redhat.com> <4AAA8A56.3040707@codemonkey.ws> <20090916112332.6bf981a5@linux.intel.com> <4AB164A0.8000402@codemonkey.ws> <20090918170048.53ba8cf6@linux.intel.com> <4AB3C988.2040303@codemonkey.ws> Organization: Intel X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.5; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Again, this is paravirtual serial device and I think it's entirely > reasonable for people to hook up these ports in the guest directly to > physical serial devices in the host. virtio doesn't support all those features. > I fail to see how this is at all relevant. This is a virtual > machine, we're presenting virtual hardware that behaves like a serial > device. The more important question is what you are using it for, and when you ask that question it looks remarkably unlike a tty or serial port and rather more like a message and status passing bus ?