From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756090AbeDQQQn (ORCPT ); Tue, 17 Apr 2018 12:16:43 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:59786 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755923AbeDQQQl (ORCPT ); Tue, 17 Apr 2018 12:16:41 -0400 Subject: Re: [PATCH v4 15/15] s390: doc: detailed specifications for AP virtualization To: Cornelia Huck , Pierre Morel , buendgen@de.ibm.com Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, freude@de.ibm.com, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, borntraeger@de.ibm.com, kwankhede@nvidia.com, bjsdjshi@linux.vnet.ibm.com, pbonzini@redhat.com, alex.williamson@redhat.com, alifm@linux.vnet.ibm.com, mjrosato@linux.vnet.ibm.com, jjherne@linux.vnet.ibm.com, thuth@redhat.com, pasic@linux.vnet.ibm.com, berrange@redhat.com, fiuczy@linux.vnet.ibm.com References: <1523827345-11600-1-git-send-email-akrowiak@linux.vnet.ibm.com> <1523827345-11600-16-git-send-email-akrowiak@linux.vnet.ibm.com> <04a0cf49-71a1-214a-7261-d8e55adee1de@linux.vnet.ibm.com> <20180416155353.01bee181.cohuck@redhat.com> From: Tony Krowiak Date: Tue, 17 Apr 2018 12:16:32 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <20180416155353.01bee181.cohuck@redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-TM-AS-GCONF: 00 x-cbid: 18041716-0044-0000-0000-00000405F670 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008871; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000257; SDB=6.01019283; UDB=6.00519986; IPR=6.00798524; MB=3.00020619; MTD=3.00000008; XFM=3.00000015; UTC=2018-04-17 16:16:38 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18041716-0045-0000-0000-00000837FAC4 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-04-17_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1804170142 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/16/2018 09:53 AM, Cornelia Huck wrote: > On Mon, 16 Apr 2018 15:13:59 +0200 > Pierre Morel wrote: > >> On 15/04/2018 23:22, Tony Krowiak wrote: >>> +* Register with the ap_bus for AP queue devices of type CEX4, CEX5 and >>> + CEX6 and to provide the vfio_ap driver's probe and remove callback interfaces. >> I wonder why the type of card has anything to do with this driver. >> It should be transparent, the driver should be able to provide the >> matrix (APM/AQM/ADM) >> independently from the type of card in the slot. > Would also be interested why this is limited to certain, newer cards. > Did some kind of interface change (I dimly recall something like that), > or are simply no old systems with those older card types around to check > whether it works? That was a restriction recommended by our crypto architect. > > In either case, a short note would be good (does not need to go into > any details). I can do that. >