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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86846C433EF for ; Thu, 21 Jul 2022 08:34:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229932AbiGUIe4 (ORCPT ); Thu, 21 Jul 2022 04:34:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229780AbiGUIez (ORCPT ); Thu, 21 Jul 2022 04:34:55 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DA90D7E321; Thu, 21 Jul 2022 01:34:54 -0700 (PDT) Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 26L8HSmb016045; Thu, 21 Jul 2022 08:34:54 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=pp1; bh=I4hdz5aV02CanBccTjVVgDZ51WswlsgpjqvfxnsTS1Q=; b=PRW/oiX4ONdSyj9eWZdc/g6OOhwPrCF489dA8DhxMCWzQIQGs4pEY+vUHbuXBYXfvz5M FlcntNk10NNJnBJxM9mQJ7FKlREFhGMuobtwnTMqGwBJ/lbH6qo5zv2gpk0rZ764W32z P9m/2tg5DcosXOYSwPzgcaQCr1/y7sKZjgho47K7gkTe33wUC2VVBqcBkSDfJP/m9/UV +qIaJ0mnDFMME+fOHUIbcVT+weqAhHVXqM3NWZ6SOs9b3gOplgk5umNhSLPlD8lGKxa8 6DyXOkKzv1bllq1qTsCNDU5mPSVhiRWBcZijIuEQT+yngB/vs+3TSiOGsa0ZZc0apGbJ 5g== Received: from ppma06ams.nl.ibm.com (66.31.33a9.ip4.static.sl-reverse.com [169.51.49.102]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3hf35ngcyt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 21 Jul 2022 08:34:54 +0000 Received: from pps.filterd (ppma06ams.nl.ibm.com [127.0.0.1]) by ppma06ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 26L8LxYJ012860; Thu, 21 Jul 2022 08:34:52 GMT Received: from b06cxnps4076.portsmouth.uk.ibm.com (d06relay13.portsmouth.uk.ibm.com [9.149.109.198]) by ppma06ams.nl.ibm.com with ESMTP id 3hbmkj6n38-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 21 Jul 2022 08:34:52 +0000 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 26L8YmmH20316540 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 Jul 2022 08:34:49 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DA25552054; Thu, 21 Jul 2022 08:34:48 +0000 (GMT) Received: from [9.171.90.65] (unknown [9.171.90.65]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id 961A15204F; Thu, 21 Jul 2022 08:34:48 +0000 (GMT) Message-ID: Date: Thu, 21 Jul 2022 10:34:48 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 Subject: Re: [PATCH v1] s390/kvm: pv: don't present the ecall interrupt twice Content-Language: en-US To: Janosch Frank , Nico Boehr , imbrenda@linux.ibm.com Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org References: <20220718130434.73302-1-nrb@linux.ibm.com> <16b8d198-9f5b-7124-e9bc-69209a0b49ac@linux.ibm.com> From: Christian Borntraeger In-Reply-To: <16b8d198-9f5b-7124-e9bc-69209a0b49ac@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 68l-UDoPAHC-wfvKdEhu5kcLx0JEM32Y X-Proofpoint-GUID: 68l-UDoPAHC-wfvKdEhu5kcLx0JEM32Y X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-07-20_12,2022-07-20_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 clxscore=1015 mlxlogscore=667 lowpriorityscore=0 suspectscore=0 adultscore=0 mlxscore=0 priorityscore=1501 impostorscore=0 spamscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2206140000 definitions=main-2207210033 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Am 19.07.22 um 15:07 schrieb Janosch Frank: > On 7/18/22 15:04, Nico Boehr wrote: >> When the SIGP interpretation facility is present and a VCPU sends an >> ecall to another VCPU in enabled wait, the sending VCPU receives a 56 >> intercept (partial execution), so KVM can wake up the receiving CPU. >> Note that the SIGP interpretation facility will take care of the >> interrupt delivery and KVM's only job is to wake the receiving VCPU. > > @Nico: Can we fixup the patch subject when picking? > The prefix normally starts with KVM: arch: Subject starts here > > kvm: s390: pv: don't present the ecall interrupt twice KVM (uppercase) please.