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 721D0C46467 for ; Fri, 25 Nov 2022 12:43:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229452AbiKYMnO (ORCPT ); Fri, 25 Nov 2022 07:43:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44366 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229999AbiKYMnM (ORCPT ); Fri, 25 Nov 2022 07:43:12 -0500 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE84D1AD9B; Fri, 25 Nov 2022 04:43:09 -0800 (PST) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2APBRNgD018753; Fri, 25 Nov 2022 12:43:08 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-transfer-encoding : mime-version; s=pp1; bh=WhhjihFTdVlfWWQqDobFSOZ+BgzYqQSxrClIiVHe6yo=; b=FiTfJ5McskIz5p2Mn9civr6w5IuafUY1cee8uqNS1p7wtve1UgUTeFs2wSFvoJIDLMTm PSAOhIzWFjQdvnUrLTZ0YUZLRatawCEz29RYi/6ipX4gBZ7zDgpTXHC3Gb030AllcrFJ e1drpQ/Uo7fnZ+bqNcTY110LmCB8e9K20sPDoGkxp72RwYscXictfhC3O2aFXaWNp5JR dR8/gJaPn22EWquhyKAv27OARG5KxcBsMDJn2k9NoCOCwC0UEUjlYopQU1fRfpd2xbz/ bnO+sYNrX+hWK++bf+7KymKUI8e2Aj7B8w3FjMtqENCDWSZE8t6Ds8Nxy1njFLKlHoPE Hg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3m2vum1jx2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 25 Nov 2022 12:43:08 +0000 Received: from m0098421.ppops.net (m0098421.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 2APCPeXf023309; Fri, 25 Nov 2022 12:43:08 GMT 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 3m2vum1jwn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 25 Nov 2022 12:43:08 +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 2APCZZIW029884; Fri, 25 Nov 2022 12:43:06 GMT Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by ppma06ams.nl.ibm.com with ESMTP id 3kxpdj1mb6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 25 Nov 2022 12:43:06 +0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 2APCh37I4850224 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 25 Nov 2022 12:43:03 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 33E6A4C046; Fri, 25 Nov 2022 12:43:03 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A9A434C044; Fri, 25 Nov 2022 12:43:02 +0000 (GMT) Received: from li-9fd7f64c-3205-11b2-a85c-df942b00d78d.ibm.com.com (unknown [9.171.63.115]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 25 Nov 2022 12:43:02 +0000 (GMT) From: Janosch Frank To: pbonzini@redhat.com Cc: kvm@vger.kernel.org, frankja@linux.ibm.com, david@redhat.com, borntraeger@de.ibm.com, cohuck@redhat.com, linux-s390@vger.kernel.org, imbrenda@linux.ibm.com, Steffen Eiden , Nico Boehr Subject: [GIT PULL 13/15] KVM: s390: pv: module parameter to fence asynchronous destroy Date: Fri, 25 Nov 2022 13:39:45 +0100 Message-Id: <20221125123947.31047-14-frankja@linux.ibm.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221125123947.31047-1-frankja@linux.ibm.com> References: <20221125123947.31047-1-frankja@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: v60wCo9GjcFsCUkSqsMavqScCM8CSQVE X-Proofpoint-GUID: 21jMWvvTgyzto-8nGRSVx4FL1EljiHOw Content-Transfer-Encoding: 8bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-25_04,2022-11-25_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 mlxlogscore=999 spamscore=0 impostorscore=0 clxscore=1015 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2211250098 Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org From: Claudio Imbrenda Add the module parameter "async_destroy", to allow the asynchronous destroy mechanism to be switched off. This might be useful for debugging purposes. The parameter is enabled by default since the feature is opt-in anyway. Signed-off-by: Claudio Imbrenda Reviewed-by: Janosch Frank Reviewed-by: Steffen Eiden Reviewed-by: Nico Boehr Link: https://lore.kernel.org/r/20221111170632.77622-7-imbrenda@linux.ibm.com Message-Id: <20221111170632.77622-7-imbrenda@linux.ibm.com> Signed-off-by: Janosch Frank --- arch/s390/kvm/kvm-s390.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index b6cc7d2935c0..8a0c884bf737 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -209,7 +209,13 @@ unsigned int diag9c_forwarding_hz; module_param(diag9c_forwarding_hz, uint, 0644); MODULE_PARM_DESC(diag9c_forwarding_hz, "Maximum diag9c forwarding per second, 0 to turn off"); -static int async_destroy; +/* + * allow asynchronous deinit for protected guests; enable by default since + * the feature is opt-in anyway + */ +static int async_destroy = 1; +module_param(async_destroy, int, 0444); +MODULE_PARM_DESC(async_destroy, "Asynchronous destroy for protected guests"); /* * For now we handle at most 16 double words as this is what the s390 base -- 2.38.1