Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965968Ab3DRGxw (ORCPT ); Thu, 18 Apr 2013 02:53:52 -0400 Received: from ozlabs.org ([203.10.76.45]:38217 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965920Ab3DRGxv (ORCPT ); Thu, 18 Apr 2013 02:53:51 -0400 From: Rusty Russell To: PranavkumarSawargaonkar , kvmarm@lists.cs.columbia.edu Cc: linux-arm-kernel@lists.infradead.org, linaro-kernel@lists.linaro.org, patches@linaro.org, linux-kernel@vger.kernel.org, Pranavkumar Sawargaonkar , Anup Patel Subject: Re: [RFC] arm64: Early printk support for virtio-mmio console devices. In-Reply-To: <1366264344-28025-1-git-send-email-pranavkumar@linaro.org> References: <1366264344-28025-1-git-send-email-pranavkumar@linaro.org> User-Agent: Notmuch/0.14 (http://notmuchmail.org) Emacs/23.4.1 (i686-pc-linux-gnu) Date: Thu, 18 Apr 2013 16:21:47 +0930 Message-ID: <87wqs02uws.fsf@rustcorp.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 774 Lines: 19 PranavkumarSawargaonkar writes: > From: Pranavkumar Sawargaonkar > > This patch implements early printk support for virtio-mmio console devices without using any hypercalls. This makes some sense, though not sure that early console *read* makes much sense. I can see the PCI version of this being useful as well. The spec definition for this will be interesting, because it can be used before the device is initialized (something which is generally verboten). Cheers, Rusty. -- 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/