From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 311FBC282CD for ; Mon, 28 Jan 2019 16:59:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0900E21741 for ; Mon, 28 Jan 2019 16:59:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387587AbfA1Q7Z (ORCPT ); Mon, 28 Jan 2019 11:59:25 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:45774 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388216AbfA1Q7U (ORCPT ); Mon, 28 Jan 2019 11:59:20 -0500 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x0SGx4QT129457 for ; Mon, 28 Jan 2019 11:59:19 -0500 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0a-001b2d01.pphosted.com with ESMTP id 2qa50yadsr-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 28 Jan 2019 11:59:18 -0500 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 28 Jan 2019 16:59:14 -0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x0SGxCs729229194 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 28 Jan 2019 16:59:12 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BD18EA4060; Mon, 28 Jan 2019 16:59:12 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5E8EBA405F; Mon, 28 Jan 2019 16:59:12 +0000 (GMT) Received: from oc2783563651 (unknown [9.152.97.178]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 28 Jan 2019 16:59:12 +0000 (GMT) Date: Mon, 28 Jan 2019 17:59:10 +0100 From: Halil Pasic To: Michael Mueller Cc: KVM Mailing List , Linux-S390 Mailing List , linux-kernel@vger.kernel.org, Martin Schwidefsky , Heiko Carstens , Christian Borntraeger , Janosch Frank , David Hildenbrand , Cornelia Huck , Pierre Morel Subject: Re: [PATCH v6 09/13] KVM: s390: add the GIB and its related life-cyle functions In-Reply-To: <20190124125939.130763-10-mimu@linux.ibm.com> References: <20190124125939.130763-1-mimu@linux.ibm.com> <20190124125939.130763-10-mimu@linux.ibm.com> Organization: IBM X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.31; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 19012816-4275-0000-0000-00000305F974 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19012816-4276-0000-0000-00003813FDC9 Message-Id: <20190128175910.5d9677e7@oc2783563651> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-01-28_09:,, 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 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901280128 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 24 Jan 2019 13:59:35 +0100 Michael Mueller wrote: > The Guest Information Block (GIB) links the GISA of all guests > that have adapter interrupts pending. These interrupts cannot be > delivered because all vcpus of these guests are currently in WAIT > state or have masked the respective Innterruption Sub Class (ISC). > If enabled, a GIB alert is issued on the host to schedule these > guests to run suitable vcpus to consume the pending interruptions. > > This mechanism allows to process adapter interrupts for currently > not running guests. > > The GIB is created during host initialization and associated with > the Adapter Interruption Facility in case an Adapter Interruption > Virtualization Facility is available. > > The GIB initialization and thus the activation of the related code > will be done in an upcoming patch of this series. > > Signed-off-by: Michael Mueller > Reviewed-by: Janosch Frank > Reviewed-by: Christian Borntraeger > Reviewed-by: Cornelia Huck > Reviewed-by: Pierre Morel I don't agree with the commit message to 100%, but I'd rather not start a discussion. Acked-by: Halil Pasic [..]