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Fri, 15 Jun 2018 21:00:46 +0000 Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w5FL0k59014460 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Jun 2018 21:00:46 GMT Received: from abhmp0004.oracle.com (abhmp0004.oracle.com [141.146.116.10]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id w5FL0jR2010049; Fri, 15 Jun 2018 21:00:45 GMT Received: from dhcp-burlington7-2nd-B-east-10-152-55-162.usdhcp.oraclecorp.com (/10.152.32.65) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 15 Jun 2018 14:00:44 -0700 Subject: Re: [PATCH v4 7/9] xen/gntdev: Add initial support for dma-buf UAPI To: Oleksandr Andrushchenko , xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, jgross@suse.com, konrad.wilk@oracle.com Cc: daniel.vetter@intel.com, dongwon.kim@intel.com, matthew.d.roper@intel.com, Oleksandr Andrushchenko References: <20180615062753.9229-1-andr2000@gmail.com> <20180615062753.9229-8-andr2000@gmail.com> From: Boris Ostrovsky Openpgp: preference=signencrypt Autocrypt: addr=boris.ostrovsky@oracle.com; 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Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <20180615062753.9229-8-andr2000@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8925 signatures=668702 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=729 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1805220000 definitions=main-1806150225 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/15/2018 02:27 AM, Oleksandr Andrushchenko wrote: > From: Oleksandr Andrushchenko > > Add UAPI and IOCTLs for dma-buf grant device driver extension: > the extension allows userspace processes and kernel modules to > use Xen backed dma-buf implementation. With this extension grant > references to the pages of an imported dma-buf can be exported > for other domain use and grant references coming from a foreign > domain can be converted into a local dma-buf for local export. > Implement basic initialization and stubs for Xen DMA buffers' > support. > > Signed-off-by: Oleksandr Andrushchenko Reviewed-by: Boris Ostrovsky