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 92A27C4332F for ; Tue, 7 Dec 2021 21:00:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237429AbhLGVES (ORCPT ); Tue, 7 Dec 2021 16:04:18 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:58332 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S241555AbhLGVDo (ORCPT ); Tue, 7 Dec 2021 16:03:44 -0500 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 1B7KqaOn014945; Tue, 7 Dec 2021 21:00:11 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 : mime-version : content-transfer-encoding; s=pp1; bh=qp9vVYG5GckGz0KgYpMV5xbXAc7dfA7b91vH4eOYxz0=; b=iIPIkAM1iMi+JJNTzHL/ju8BmWvPP947px9VXtlsIf0MdYxQx0OMNglCLzHZGajccIpj O60bS2St0WBNsggKkGaA7HWNCe1pB88ye0U6uCU7dLbv4NupG3XYJ0jC85BZhRKrD1uM TtxHy2p44KjKJZ+6qp3pNEagHdFzzoZKDKVdiZk7UPu8EqWoclPV/DqYFp+unKFY/WoL saU1z0vBoohKQm8URb5DdzK/px+l1o6uq7SgKk0fYqq4b9MbYrVwkE+ePgBUfF/VLWX7 c2hruN4dRdKfJN87bZG7XDrPbDODS0TNPsajrUJ8J7FKn86+AGZKqBoS/yp9FCyDTWWk iQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 3ctf1kr475-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Dec 2021 21:00:11 +0000 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 1B7KvBvI014919; Tue, 7 Dec 2021 21:00:10 GMT 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 3ctf1kr46w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Dec 2021 21:00:10 +0000 Received: from pps.filterd (ppma04dal.us.ibm.com [127.0.0.1]) by ppma04dal.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 1B7Kw04p021333; Tue, 7 Dec 2021 21:00:10 GMT Received: from b01cxnp22033.gho.pok.ibm.com (b01cxnp22033.gho.pok.ibm.com [9.57.198.23]) by ppma04dal.us.ibm.com with ESMTP id 3cqyyau1me-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Dec 2021 21:00:10 +0000 Received: from b01ledav005.gho.pok.ibm.com (b01ledav005.gho.pok.ibm.com [9.57.199.110]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 1B7L07nC25035040 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 7 Dec 2021 21:00:07 GMT Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 94463AE071; Tue, 7 Dec 2021 21:00:07 +0000 (GMT) Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B029CAE05F; Tue, 7 Dec 2021 21:00:02 +0000 (GMT) Received: from li-c92d2ccc-254b-11b2-a85c-a700b5bfb098.ibm.com.com (unknown [9.211.152.43]) by b01ledav005.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 7 Dec 2021 21:00:02 +0000 (GMT) From: Matthew Rosato To: linux-s390@vger.kernel.org Cc: alex.williamson@redhat.com, cohuck@redhat.com, schnelle@linux.ibm.com, farman@linux.ibm.com, pmorel@linux.ibm.com, borntraeger@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, gerald.schaefer@linux.ibm.com, agordeev@linux.ibm.com, frankja@linux.ibm.com, david@redhat.com, imbrenda@linux.ibm.com, vneethv@linux.ibm.com, oberpar@linux.ibm.com, freude@linux.ibm.com, thuth@redhat.com, pasic@linux.ibm.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 25/32] vfio/pci: re-introduce CONFIG_VFIO_PCI_ZDEV Date: Tue, 7 Dec 2021 15:57:36 -0500 Message-Id: <20211207205743.150299-26-mjrosato@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20211207205743.150299-1-mjrosato@linux.ibm.com> References: <20211207205743.150299-1-mjrosato@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: rcKnj7rKvjo2ImC3uGkcqwFyoI7ztgn1 X-Proofpoint-GUID: vC6UuI_tNGABFyx1sDmt1uNXnVDQyhWX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2021-12-07_08,2021-12-06_02,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 spamscore=0 bulkscore=0 mlxlogscore=999 phishscore=0 suspectscore=0 mlxscore=0 malwarescore=0 adultscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112070126 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This was previously removed as unnecessary; while that was true, subsequent changes will make KVM an additional required component for vfio-pci-zdev. Let's re-introduce CONFIG_VFIO_PCI_ZDEV as now there is actually a reason to say 'n' for it (when not planning to CONFIG_KVM). Signed-off-by: Matthew Rosato --- drivers/vfio/pci/Kconfig | 11 +++++++++++ drivers/vfio/pci/Makefile | 2 +- include/linux/vfio_pci_core.h | 2 +- 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig index 860424ccda1b..fedd1d4cb592 100644 --- a/drivers/vfio/pci/Kconfig +++ b/drivers/vfio/pci/Kconfig @@ -42,5 +42,16 @@ config VFIO_PCI_IGD and LPC bridge config space. To enable Intel IGD assignment through vfio-pci, say Y. + +config VFIO_PCI_ZDEV + bool "VFIO PCI extensions for s390x KVM passthrough" + depends on S390 && KVM + default y + help + Support s390x-specific extensions to enable support for enhancements + to KVM passthrough capabilities, such as interpretive execution of + zPCI instructions. + + To enable s390x KVM vfio-pci extensions, say Y. endif endif diff --git a/drivers/vfio/pci/Makefile b/drivers/vfio/pci/Makefile index 349d68d242b4..01b1f83d83d7 100644 --- a/drivers/vfio/pci/Makefile +++ b/drivers/vfio/pci/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only vfio-pci-core-y := vfio_pci_core.o vfio_pci_intrs.o vfio_pci_rdwr.o vfio_pci_config.o -vfio-pci-core-$(CONFIG_S390) += vfio_pci_zdev.o +vfio-pci-core-$(CONFIG_VFIO_PCI_ZDEV) += vfio_pci_zdev.o obj-$(CONFIG_VFIO_PCI_CORE) += vfio-pci-core.o vfio-pci-y := vfio_pci.o diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h index ef9a44b6cf5d..5e2bca3b89db 100644 --- a/include/linux/vfio_pci_core.h +++ b/include/linux/vfio_pci_core.h @@ -195,7 +195,7 @@ static inline int vfio_pci_igd_init(struct vfio_pci_core_device *vdev) } #endif -#ifdef CONFIG_S390 +#ifdef CONFIG_VFIO_PCI_ZDEV extern int vfio_pci_info_zdev_add_caps(struct vfio_pci_core_device *vdev, struct vfio_info_cap *caps); #else -- 2.27.0