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[23.128.96.18]) by mx.google.com with ESMTP id p13si30661804edx.221.2021.07.22.10.05.25; Thu, 22 Jul 2021 10:05:49 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@ibm.com header.s=pp1 header.b=noRGTNpB; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=ibm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233949AbhGVQWV (ORCPT + 99 others); Thu, 22 Jul 2021 12:22:21 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:54678 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S233829AbhGVQWO (ORCPT ); Thu, 22 Jul 2021 12:22:14 -0400 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 16MGlT0K062493; Thu, 22 Jul 2021 13:02:48 -0400 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; s=pp1; bh=6TVmLsoFKmvY10YxmHyVkALKccJ2y7fUYOrKlnLe6lg=; b=noRGTNpBUO1u6JVoOFWbr78dQa5xBu6W262JVDliQknGzxWXAE1wj7KL6/8z44v64VGE NKCISGTig7eFH0XbkOmy56b8WGq2uwzaABIex0SHlEKZ17eMf9DFUavhISg3JtxYDnuA jBI/Iroir7NcO1VUbx/DsEe2bGOWhc4Le61Q0Z7HvzKRThK8E9cnQMj+oNLGalAvkneH 8EpZ2BtvfzUoOsRvMq0mS3Zi2hoOBlcPZWRQf+ZlWr5TJ8V9qOCHPavwQ1glNa+5Rf8y O2G02hSLiNs1pHt1ijYSTMT73F9a/5NtVEMfF2GmeNwAwaQBKwpkZcjlB359m03Okmpe wA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 39ycge8d43-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 22 Jul 2021 13:02:48 -0400 Received: from m0098420.ppops.net (m0098420.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 16MGpGY3081012; Thu, 22 Jul 2021 13:02:48 -0400 Received: from ppma06ams.nl.ibm.com (66.31.33a9.ip4.static.sl-reverse.com [169.51.49.102]) by mx0b-001b2d01.pphosted.com with ESMTP id 39ycge8d2f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 22 Jul 2021 13:02:48 -0400 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 16MGxHWt032723; Thu, 22 Jul 2021 17:02:45 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma06ams.nl.ibm.com with ESMTP id 39vng727gr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 22 Jul 2021 17:02:45 +0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 16MH2gvt11796872 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 22 Jul 2021 17:02:42 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 88973AE057; Thu, 22 Jul 2021 17:02:42 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 05AC6AE051; Thu, 22 Jul 2021 17:02:42 +0000 (GMT) Received: from oc3016276355.ibm.com (unknown [9.145.18.177]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 22 Jul 2021 17:02:41 +0000 (GMT) From: Pierre Morel To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, borntraeger@de.ibm.com, frankja@linux.ibm.com, cohuck@redhat.com, david@redhat.com, thuth@redhat.com, imbrenda@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, pmorel@linux.ibm.com Subject: [PATCH v2 2/2] s390:kvm: Topology expose TOPOLOGY facility Date: Thu, 22 Jul 2021 19:02:33 +0200 Message-Id: <1626973353-17446-3-git-send-email-pmorel@linux.ibm.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1626973353-17446-1-git-send-email-pmorel@linux.ibm.com> References: <1626973353-17446-1-git-send-email-pmorel@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: sySRMIDBn7Mv9FaU3s-Lz0DAHNirrAQC X-Proofpoint-ORIG-GUID: TLueNPNqU5m56NNm0OnoDyqZnKYayh2g X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.790 definitions=2021-07-22_09:2021-07-22,2021-07-22 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 clxscore=1015 mlxscore=0 spamscore=0 malwarescore=0 suspectscore=0 impostorscore=0 bulkscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2107220110 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We add a KVM extension KVM_CAP_S390_CPU_TOPOLOGY to tell the userland hypervisor it is safe to activate the CPU Topology facility. Signed-off-by: Pierre Morel --- arch/s390/kvm/kvm-s390.c | 1 + include/uapi/linux/kvm.h | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index b655a7d82bf0..8c695ee79612 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -568,6 +568,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_S390_VCPU_RESETS: case KVM_CAP_SET_GUEST_DEBUG: case KVM_CAP_S390_DIAG318: + case KVM_CAP_S390_CPU_TOPOLOGY: r = 1; break; case KVM_CAP_SET_GUEST_DEBUG2: diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index d9e4aabcb31a..081ce0cd44b9 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1112,6 +1112,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_BINARY_STATS_FD 203 #define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204 #define KVM_CAP_ARM_MTE 205 +#define KVM_CAP_S390_CPU_TOPOLOGY 206 #ifdef KVM_CAP_IRQ_ROUTING -- 2.25.1