From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cornelia Huck Subject: Re: [PATCH 5/5] KVM: s390: Split out early console code. Date: Tue, 30 Oct 2012 13:59:26 +0100 Message-ID: <20121030135926.2db07255@BR9GNB5Z> References: <1351516046-30037-1-git-send-email-cornelia.huck@de.ibm.com> <1351516046-30037-6-git-send-email-cornelia.huck@de.ibm.com> <1440F0DC-0DC5-40FB-88E2-EE203A7C5F66@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Avi Kivity , Marcelo Tosatti , KVM , linux-s390 , Christian Borntraeger , Carsten Otte , Heiko Carstens , Martin Schwidefsky , Sebastian Ott To: Alexander Graf Return-path: Received: from e06smtp15.uk.ibm.com ([195.75.94.111]:52701 "EHLO e06smtp15.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932140Ab2J3M7e (ORCPT ); Tue, 30 Oct 2012 08:59:34 -0400 Received: from /spool/local by e06smtp15.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 30 Oct 2012 12:59:32 -0000 In-Reply-To: <1440F0DC-0DC5-40FB-88E2-EE203A7C5F66@suse.de> Sender: kvm-owner@vger.kernel.org List-ID: On Mon, 29 Oct 2012 19:14:19 +0100 Alexander Graf wrote: > > On 29.10.2012, at 14:07, Cornelia Huck wrote: > > > This code is transport agnostic and can be used by both the legacy > > virtio code and virtio_ccw. > > Would it be possible to actually send real virtio or sclp console commands for early printk? That'd make things a lot easier on the user space end. Combining two completely separate character channels (early printk + sclp or early printk + virtio-console) is really tricky. > This code is only used if we use a virtio console device. The sclp code path is completely different. What do you mean with "real virtio console commands"? The message is just put on the output queue anyway.