From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([208.118.235.92]:49282)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <borntraeger@de.ibm.com>) id 1SwBoN-0006Yh-MR
	for qemu-devel@nongnu.org; Tue, 31 Jul 2012 08:44:35 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <borntraeger@de.ibm.com>) id 1SwBoI-0006h3-05
	for qemu-devel@nongnu.org; Tue, 31 Jul 2012 08:44:31 -0400
Received: from e06smtp10.uk.ibm.com ([195.75.94.106]:56700)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <borntraeger@de.ibm.com>) id 1SwBoH-0006gh-NL
	for qemu-devel@nongnu.org; Tue, 31 Jul 2012 08:44:25 -0400
Received: from /spool/local
	by e06smtp10.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use
	Only! Violators will be prosecuted
	for <qemu-devel@nongnu.org> from <borntraeger@de.ibm.com>;
	Tue, 31 Jul 2012 13:44:23 +0100
Received: from d06av06.portsmouth.uk.ibm.com (d06av06.portsmouth.uk.ibm.com
	[9.149.37.217])
	by d06nrmr1407.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with
	ESMTP id q6VCiLga3129472
	for <qemu-devel@nongnu.org>; Tue, 31 Jul 2012 13:44:21 +0100
Received: from d06av06.portsmouth.uk.ibm.com (loopback [127.0.0.1])
	by d06av06.portsmouth.uk.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with
	ESMTP id q6VCiKoN027257
	for <qemu-devel@nongnu.org>; Tue, 31 Jul 2012 06:44:20 -0600
Message-ID: <5017D324.4050008@de.ibm.com>
Date: Tue, 31 Jul 2012 14:44:20 +0200
From: Christian Borntraeger <borntraeger@de.ibm.com>
MIME-Version: 1.0
References: <CAAu8pHtMiJs-_RHSXX03DT4icYmZOij3GLP5jyi+mhj7fzyAYw@mail.gmail.com>
	<1343293186-18372-1-git-send-email-borntraeger@de.ibm.com>
	<942124BF-C46B-4896-9758-B03E919D0E62@suse.de>
In-Reply-To: <942124BF-C46B-4896-9758-B03E919D0E62@suse.de>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] [PATCH v4 07/07] s390: make sclp ascii console the
	default
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Alexander Graf <agraf@suse.de>
Cc: Blue Swirl <blauwirbel@gmail.com>, Heinz Graalfs <graalfs@linux.vnet.ibm.com>, qemu-devel <qemu-devel@nongnu.org>, Jens Freimann <jfrei@linux.vnet.ibm.com>, afaerber@suse.de

On 30/07/12 16:05, Alexander Graf wrote:
> 
> On 26.07.2012, at 10:59, Christian Borntraeger wrote:
> 
>> This patch makes the sclp ascii default for S390. It requires a guest
>> kernel that autodetects the console and which not blindly assumes
>> that kvm means virtio console.
>> (commit cd1834591fe9564720ac4b0193bf1c790fe89f0d
>>    KVM: s390: Perform early event mask processing during boot)
>> Otherwise the guest admin has to explicitely add console=ttyS1 to the
>> command line.
> 
> Hrm. Could we make this the non-default for the time being with a simple -machine option to switch it to the default? When enough kernels are aware of the switch, we could then make it the default.

No problem, we can defer that patch. It was merely a testing aid for those who want to test the
sclp code. Later on maybe we can make that decision based on other thing.