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=-8.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 290DEC04A6B for ; Fri, 10 May 2019 08:23:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 01B022173B for ; Fri, 10 May 2019 08:23:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727231AbfEJIXa (ORCPT ); Fri, 10 May 2019 04:23:30 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:42660 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727156AbfEJIXV (ORCPT ); Fri, 10 May 2019 04:23:21 -0400 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4A8N6fQ047433 for ; Fri, 10 May 2019 04:23:19 -0400 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0a-001b2d01.pphosted.com with ESMTP id 2sd44d43x2-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 10 May 2019 04:23:13 -0400 Received: from localhost by e06smtp01.uk.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) Fri, 10 May 2019 09:22:39 +0100 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x4A8MbXY49610988 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 10 May 2019 08:22:37 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 75D9EAE051; Fri, 10 May 2019 08:22:37 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E1608AE055; Fri, 10 May 2019 08:22:36 +0000 (GMT) Received: from morel-ThinkPad-W530.boeblingen.de.ibm.com (unknown [9.145.187.238]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 10 May 2019 08:22:36 +0000 (GMT) From: Pierre Morel To: sebott@linux.vnet.ibm.com Cc: gerald.schaefer@de.ibm.com, pasic@linux.vnet.ibm.com, borntraeger@de.ibm.com, walling@linux.ibm.com, linux-s390@vger.kernel.org, iommu@lists.linux-foundation.org, joro@8bytes.org, linux-kernel@vger.kernel.org, alex.williamson@redhat.com, kvm@vger.kernel.org, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com Subject: [PATCH 2/4] vfio: vfio_iommu_type1: Define VFIO_IOMMU_INFO_CAPABILITIES Date: Fri, 10 May 2019 10:22:33 +0200 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1557476555-20256-1-git-send-email-pmorel@linux.ibm.com> References: <1557476555-20256-1-git-send-email-pmorel@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19051008-4275-0000-0000-0000033351DE X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19051008-4276-0000-0000-00003842C748 Message-Id: <1557476555-20256-3-git-send-email-pmorel@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-05-09_02:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=783 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905100059 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To use the VFIO_IOMMU_GET_INFO to retrieve IOMMU specific information, we define a new flag VFIO_IOMMU_INFO_CAPABILITIES in the vfio_iommu_type1_info structure and the associated capability information block. Signed-off-by: Pierre Morel --- include/uapi/linux/vfio.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 8f10748..8f68e0f 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -715,6 +715,16 @@ struct vfio_iommu_type1_info { __u32 flags; #define VFIO_IOMMU_INFO_PGSIZES (1 << 0) /* supported page sizes info */ __u64 iova_pgsizes; /* Bitmap of supported page sizes */ +#define VFIO_IOMMU_INFO_CAPABILITIES (1 << 1) /* support capabilities info */ + __u64 cap_offset; /* Offset within info struct of first cap */ +}; + +#define VFIO_IOMMU_INFO_CAP_QFN 1 +#define VFIO_IOMMU_INFO_CAP_QGRP 2 + +struct vfio_iommu_type1_info_block { + struct vfio_info_cap_header header; + __u32 data[]; }; #define VFIO_IOMMU_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12) -- 2.7.4