Message ID | 20200220104020.5343-23-borntraeger@de.ibm.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=rqLM=4I=vger.kernel.org=kvm-owner@kernel.org> Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 69C87109A for <patchwork-kvm@patchwork.kernel.org>; Thu, 20 Feb 2020 10:40:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5509924656 for <patchwork-kvm@patchwork.kernel.org>; Thu, 20 Feb 2020 10:40:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728113AbgBTKk4 (ORCPT <rfc822;patchwork-kvm@patchwork.kernel.org>); Thu, 20 Feb 2020 05:40:56 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:16574 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727938AbgBTKkb (ORCPT <rfc822;kvm@vger.kernel.org>); Thu, 20 Feb 2020 05:40:31 -0500 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 01KAYO78010322; Thu, 20 Feb 2020 05:40:29 -0500 Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 2y8xdpne0f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 20 Feb 2020 05:40:29 -0500 Received: from m0098414.ppops.net (m0098414.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 01KAZ5YK012228; Thu, 20 Feb 2020 05:40:29 -0500 Received: from ppma04dal.us.ibm.com (7a.29.35a9.ip4.static.sl-reverse.com [169.53.41.122]) by mx0b-001b2d01.pphosted.com with ESMTP id 2y8xdpndyu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 20 Feb 2020 05:40:29 -0500 Received: from pps.filterd (ppma04dal.us.ibm.com [127.0.0.1]) by ppma04dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id 01KAWlix019978; Thu, 20 Feb 2020 10:40:28 GMT Received: from b01cxnp23032.gho.pok.ibm.com (b01cxnp23032.gho.pok.ibm.com [9.57.198.27]) by ppma04dal.us.ibm.com with ESMTP id 2y68976ytk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 20 Feb 2020 10:40:28 +0000 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 01KAePvN53936596 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 20 Feb 2020 10:40:25 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A251811206E; Thu, 20 Feb 2020 10:40:24 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9E9E6112061; Thu, 20 Feb 2020 10:40:24 +0000 (GMT) Received: from localhost.localdomain (unknown [9.114.17.106]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 20 Feb 2020 10:40:24 +0000 (GMT) From: Christian Borntraeger <borntraeger@de.ibm.com> To: Christian Borntraeger <borntraeger@de.ibm.com>, Janosch Frank <frankja@linux.vnet.ibm.com> Cc: KVM <kvm@vger.kernel.org>, Cornelia Huck <cohuck@redhat.com>, David Hildenbrand <david@redhat.com>, Thomas Huth <thuth@redhat.com>, Ulrich Weigand <Ulrich.Weigand@de.ibm.com>, Claudio Imbrenda <imbrenda@linux.ibm.com>, linux-s390 <linux-s390@vger.kernel.org>, Michael Mueller <mimu@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Janosch Frank <frankja@linux.ibm.com> Subject: [PATCH v3 22/37] KVM: s390: protvirt: Write sthyi data to instruction data area Date: Thu, 20 Feb 2020 05:40:05 -0500 Message-Id: <20200220104020.5343-23-borntraeger@de.ibm.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200220104020.5343-1-borntraeger@de.ibm.com> References: <20200220104020.5343-1-borntraeger@de.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-02-20_02:2020-02-19,2020-02-20 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 impostorscore=0 mlxlogscore=999 mlxscore=0 priorityscore=1501 adultscore=0 lowpriorityscore=0 suspectscore=2 clxscore=1015 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002200078 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: <kvm.vger.kernel.org> X-Mailing-List: kvm@vger.kernel.org |
Series |
KVM: s390: Add support for protected VMs
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diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index 850045034016..a5de0e1975bb 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -392,7 +392,7 @@ int handle_sthyi(struct kvm_vcpu *vcpu) goto out; } - if (addr & ~PAGE_MASK) + if (!kvm_s390_pv_cpu_is_protected(vcpu) && (addr & ~PAGE_MASK)) return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION); sctns = (void *)get_zeroed_page(GFP_KERNEL); @@ -403,10 +403,15 @@ int handle_sthyi(struct kvm_vcpu *vcpu) out: if (!cc) { - r = write_guest(vcpu, addr, reg2, sctns, PAGE_SIZE); - if (r) { - free_page((unsigned long)sctns); - return kvm_s390_inject_prog_cond(vcpu, r); + if (kvm_s390_pv_cpu_is_protected(vcpu)) { + memcpy((void *)(sida_origin(vcpu->arch.sie_block)), + sctns, PAGE_SIZE); + } else { + r = write_guest(vcpu, addr, reg2, sctns, PAGE_SIZE); + if (r) { + free_page((unsigned long)sctns); + return kvm_s390_inject_prog_cond(vcpu, r); + } } }