From patchwork Wed Jan 9 12:41:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pierre Morel X-Patchwork-Id: 10754017 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7A8FD14DE for ; Wed, 9 Jan 2019 12:42:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6BFAF28EF7 for ; Wed, 9 Jan 2019 12:42:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6A5C028F1C; Wed, 9 Jan 2019 12:42:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1C91728ECF for ; Wed, 9 Jan 2019 12:42:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730895AbfAIMmF (ORCPT ); Wed, 9 Jan 2019 07:42:05 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:50566 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726154AbfAIMmE (ORCPT ); Wed, 9 Jan 2019 07:42:04 -0500 Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id x09CXogN016654 for ; Wed, 9 Jan 2019 07:42:02 -0500 Received: from e06smtp04.uk.ibm.com (e06smtp04.uk.ibm.com [195.75.94.100]) by mx0a-001b2d01.pphosted.com with ESMTP id 2pwf8g5rqp-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 09 Jan 2019 07:42:02 -0500 Received: from localhost by e06smtp04.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) Wed, 9 Jan 2019 12:41:58 -0000 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x09CfuXv34734272 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 9 Jan 2019 12:41:56 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BAAD0A4053; Wed, 9 Jan 2019 12:41:56 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6E978A4040; Wed, 9 Jan 2019 12:41:56 +0000 (GMT) Received: from morel-ThinkPad-W530.boeblingen.de.ibm.com (unknown [9.152.224.140]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 9 Jan 2019 12:41:56 +0000 (GMT) From: Pierre Morel To: alex.williamson@redhat.com Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, walling@linux.ibm.com, cohuck@redhat.com, david@redhat.com, pasic@linux.ibm.com, thuth@redhat.com Subject: [PATCH v1 1/2] vfio:iommu: Use capabilities do report IOMMU informations Date: Wed, 9 Jan 2019 13:41:53 +0100 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1547037714-21592-1-git-send-email-pmorel@linux.ibm.com> References: <1547037714-21592-1-git-send-email-pmorel@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19010912-0016-0000-0000-000002428078 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19010912-0017-0000-0000-0000329C99AE Message-Id: <1547037714-21592-2-git-send-email-pmorel@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-01-09_07:,, 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=782 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901090106 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP We add a new flag, VFIO_IOMMU_INFO_CAPABILITIES, inside the vfio_iommu_type1_info to specify the support for capabilities. We add a new capability, with id VFIO_IOMMU_INFO_CAP_DMA in the capability list of the VFIO_IOMMU_GET_INFO ioctl. Signed-off-by: Pierre Morel --- include/uapi/linux/vfio.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 8131028..54c4fcb 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -669,6 +669,15 @@ 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_DMA 1 +struct vfio_iommu_cap_dma { + struct vfio_info_cap_header header; + __u64 dma_start; + __u64 dma_end; }; #define VFIO_IOMMU_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12)