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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BN9PR11MB5276.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 48a74b44-e0e1-4499-6793-08dac2e95bfc X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Nov 2022 07:01:15.2314 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: tuHEkvKZOJdfeM2hzrYmyJ0Hsrl402rxIXV2pwKKI1MRCqghm8A6XMy22Pd05CvOi9ugG75/qzv+P3jo/DyaSg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN9PR11MB5546 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org > From: Jason Gunthorpe > Sent: Tuesday, November 8, 2022 8:53 AM >=20 > If the VFIO container is compiled out, give a kconfig option for iommufd > to provide the miscdev node with the same name and permissions as vfio > uses. >=20 > The compatibility node supports the same ioctls as VFIO and automatically > enables the VFIO compatible pinned page accounting mode. >=20 > Tested-by: Nicolin Chen > Signed-off-by: Jason Gunthorpe Reviewed-by: Kevin Tian 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EB1E4C4332F for ; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BN9PR11MB5276.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 48a74b44-e0e1-4499-6793-08dac2e95bfc X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Nov 2022 07:01:15.2314 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: tuHEkvKZOJdfeM2hzrYmyJ0Hsrl402rxIXV2pwKKI1MRCqghm8A6XMy22Pd05CvOi9ugG75/qzv+P3jo/DyaSg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN9PR11MB5546 X-OriginatorOrg: intel.com Subject: Re: [Intel-gfx] [PATCH v2 11/11] iommufd: Allow iommufd to supply /dev/vfio/vfio X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Liu, Yi L" , Nicolin Chen , Lu Baolu Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" > From: Jason Gunthorpe > Sent: Tuesday, November 8, 2022 8:53 AM >=20 > If the VFIO container is compiled out, give a kconfig option for iommufd > to provide the miscdev node with the same name and permissions as vfio > uses. >=20 > The compatibility node supports the same ioctls as VFIO and automatically > enables the VFIO compatible pinned page accounting mode. >=20 > Tested-by: Nicolin Chen > Signed-off-by: Jason Gunthorpe Reviewed-by: Kevin Tian 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 064B0C4332F for ; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BN9PR11MB5276.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 48a74b44-e0e1-4499-6793-08dac2e95bfc X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Nov 2022 07:01:15.2314 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: tuHEkvKZOJdfeM2hzrYmyJ0Hsrl402rxIXV2pwKKI1MRCqghm8A6XMy22Pd05CvOi9ugG75/qzv+P3jo/DyaSg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN9PR11MB5546 X-OriginatorOrg: intel.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Liu, Yi L" , Nicolin Chen , Lu Baolu Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" > From: Jason Gunthorpe > Sent: Tuesday, November 8, 2022 8:53 AM >=20 > If the VFIO container is compiled out, give a kconfig option for iommufd > to provide the miscdev node with the same name and permissions as vfio > uses. >=20 > The compatibility node supports the same ioctls as VFIO and automatically > enables the VFIO compatible pinned page accounting mode. >=20 > Tested-by: Nicolin Chen > Signed-off-by: Jason Gunthorpe Reviewed-by: Kevin Tian