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=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT 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 7B37BC43382 for ; Tue, 25 Sep 2018 23:18:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3E9682086B for ; Tue, 25 Sep 2018 23:18:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3E9682086B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.vnet.ibm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727370AbeIZF1z (ORCPT ); Wed, 26 Sep 2018 01:27:55 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:48710 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727334AbeIZF1y (ORCPT ); Wed, 26 Sep 2018 01:27:54 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w8PNEdjH147305 for ; Tue, 25 Sep 2018 19:18:00 -0400 Received: from e35.co.us.ibm.com (e35.co.us.ibm.com [32.97.110.153]) by mx0b-001b2d01.pphosted.com with ESMTP id 2mqteg1721-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 25 Sep 2018 19:17:59 -0400 Received: from localhost by e35.co.us.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) Tue, 25 Sep 2018 17:17:56 -0600 Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w8PNHrMV41091236 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 25 Sep 2018 16:17:53 -0700 Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 04965136051; Tue, 25 Sep 2018 17:17:53 -0600 (MDT) Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E218A136053; Tue, 25 Sep 2018 17:17:49 -0600 (MDT) Received: from oc8043147753.ibm.com (unknown [9.80.192.224]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTPS; Tue, 25 Sep 2018 17:17:49 -0600 (MDT) From: Tony Krowiak To: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: freude@de.ibm.com, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, borntraeger@de.ibm.com, cohuck@redhat.com, kwankhede@nvidia.com, bjsdjshi@linux.vnet.ibm.com, pbonzini@redhat.com, alex.williamson@redhat.com, pmorel@linux.vnet.ibm.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, buendgen@de.ibm.com, akrowiak@linux.vnet.ibm.com, frankja@linux.ibm.com, Pierre Morel , Tony Krowiak Subject: [PATCH v11 15/26] KVM: s390: Clear Crypto Control Block when using vSIE Date: Tue, 25 Sep 2018 19:16:30 -0400 X-Mailer: git-send-email 2.19.0.221.g150f307 In-Reply-To: <20180925231641.4954-1-akrowiak@linux.vnet.ibm.com> References: <20180925231641.4954-1-akrowiak@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 18092523-0012-0000-0000-000016BBBFAB X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009771; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000267; SDB=6.01093642; UDB=6.00565266; IPR=6.00873680; MB=3.00023503; MTD=3.00000008; XFM=3.00000015; UTC=2018-09-25 23:17:58 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18092523-0013-0000-0000-0000548899BE Message-Id: <20180925231641.4954-16-akrowiak@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-09-25_12:,, 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=698 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1809250227 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Pierre Morel When we clear the Crypto Control Block (CRYCB) used by a guest level 2, the vSIE shadow CRYCB for guest level 3 must be updated before the guest uses it. We achieve this by using the KVM_REQ_VSIE_RESTART synchronous request for each vCPU belonging to the guest to force the reload of the shadow CRYCB before rerunning the guest level 3. Signed-off-by: Pierre Morel Signed-off-by: Tony Krowiak --- arch/s390/kvm/kvm-s390.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 75aa5aa4a926..c94ef2d0dbe4 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2043,6 +2043,8 @@ void kvm_arch_crypto_clear_masks(struct kvm *kvm) memset(&kvm->arch.crypto.crycb->apcb1, 0, sizeof(kvm->arch.crypto.crycb->apcb1)); + /* recreate the shadow crycb for each vcpu */ + kvm_s390_sync_request_broadcast(kvm, KVM_REQ_VSIE_RESTART); kvm_s390_vcpu_unblock_all(kvm); mutex_unlock(&kvm->lock); } -- 2.19.0.221.g150f307