Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   "Tian, Kevin" <kevin.tian@intel.com>
To:     Baolu Lu <baolu.lu@linux.intel.com>,
        Jacob Pan <jacob.jun.pan@linux.intel.com>
CC:     Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
        "Robin Murphy" <robin.murphy@arm.com>,
        Jason Gunthorpe <jgg@ziepe.ca>,
        "Jean-Philippe Brucker" <jean-philippe@linaro.org>,
        Nicolin Chen <nicolinc@nvidia.com>,
        "Liu, Yi L" <yi.l.liu@intel.com>,
        "iommu@lists.linux.dev" <iommu@lists.linux.dev>,
        "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 9/9] iommu: Use fault cookie to store iopf_param
Thread-Topic: [PATCH 9/9] iommu: Use fault cookie to store iopf_param
Thread-Index: AQHZs5ROZ0DTU24O6Ue9hKGIoQNDRq+1H7OAgABWtACAAZVBwA==
Date:   Thu, 13 Jul 2023 03:24:55 +0000
Message-ID: <BN9PR11MB527640E6FBD5271E8AF9D59B8C37A@BN9PR11MB5276.namprd11.prod.outlook.com>
References: <20230711010642.19707-1-baolu.lu@linux.intel.com>
 <20230711010642.19707-10-baolu.lu@linux.intel.com>
 <20230711150249.62917dad@jacob-builder>
 <e26db44c-ec72-085d-13ee-597237ba2134@linux.intel.com>
In-Reply-To: <e26db44c-ec72-085d-13ee-597237ba2134@linux.intel.com>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?Q25JZ3lHM2dpNUhFQm9pblBvdjNMYWh3elFZTEdvNG9tQlIyajJSeXdTNHIv?=
 =?utf-8?B?UEpoWkdVM3pFbCtPNHJCajkvL2ZnTFBTeHVJQkFlZnhVbGlaTVhtTmtwc3h0?=
 =?utf-8?B?Zml0R3B4aWU4QitCWnh6TEl6UExpdTBHc3RQUHpybDcxOFVBRWhld2lBOG5V?=
 =?utf-8?B?QWUvZEZDR01yeWdmbnhpd1VyRlorRFY2WUplQkx2VXcxSXJFSzd0WWlwdWE1?=
 =?utf-8?B?ODBJbzV0SGZWS1BTYXZhenVjaGxoMldkeklqRXR5WC9XS0NNNUJ1Q2gvWG1V?=
 =?utf-8?B?WHNiN2VPUTVxckpadVR6LzRPRWRUbVhqQm1MYnduUEQybFA5V1VBRnJza21L?=
 =?utf-8?B?MG9kN0kwbzdCYXFOTU9BZktLV2V5cXVRVVhmV1JMeWFvSGlZZ3BCeVlhTy9u?=
 =?utf-8?B?K0ltcndiVVRDSEIwWE5xM1RDTzRJNjNnZld0MzFjT1BVWWtuamNxN1JqRnBN?=
 =?utf-8?B?bjBtVjkxRkFJQmJBOUlhTTlJckdPS1BTUTVEWmhHOWo1cTZ2RWc0cEFUekJz?=
 =?utf-8?B?a3VoVnFlYmxKL1hKcm15dkJnZVI0ays2SXNsSkFHcXBRdVFTOEQwT2xRNXp6?=
 =?utf-8?B?alZLS0pNN2N1cENNT0kvVzRKQzV0WmVNRy9zSmpQRXRUbUxKamRsbnFFN3A0?=
 =?utf-8?B?YU5Ba09UNmZDeHQ5ZWxKVkNBOUtmNUdhMTROcmFWNzRzZ1c4SVhGL20yUU1t?=
 =?utf-8?B?MkM1WCs5bnd2aktWbHQ2OTNOZmZyb3c2c1o0cTEwM2wzeUNac3ZnNms3THRr?=
 =?utf-8?B?VXJTNFU4K3VGKzMzdEpvNytlWWZVSG1iTHlqSWdUS2hvcjhUaHo1L1pUMG1U?=
 =?utf-8?B?YlB2MHdxS0FVdXNRcURlNXp1cElSTjd4ZlY1R2ZQa1FBcWR6cURwREg5cUVr?=
 =?utf-8?B?TUpWeHdXbVhaZjNzUitPSklCWWNGdmEzZ0RTYlRBT2hFcytxa0ptaEk3bVpv?=
 =?utf-8?B?MHlwdWJ6ZERLUUd1YnJBZm9RdjlkT0Y0OGF2WFI3bStITWhSMG1rekJYNWc5?=
 =?utf-8?B?TjcxeE8wMm5SNWJES1Y3NUNRM2dweDc3WWlmZHVwTzhGZi9vVHhOV1h0WHVL?=
 =?utf-8?B?Q2pFeW5ZREJRaFZSajFadCsyZUJ0NHBlZzl1dHVIdlhDYmN4QS9welNjZjBP?=
 =?utf-8?B?VjlmRkIrYVVDaHlKTmEyZzV1bWc3RmZWWXMrdjQ4L1VGSnd2MG1jalhnYUx0?=
 =?utf-8?B?eEk2RlhGU1JvK2tWQ016SkwrVUZZOUt6L0pXd0pPNFc3WDQ5aXRwbG4zNXh4?=
 =?utf-8?B?Z0VCVGJsdU5wdExBRElqVDAyUHpiQ0Z4UlpsYSt3SGV3eWtXek14MDYxR24r?=
 =?utf-8?B?UUZyMFUyRi9tdm9uMUI3UjI0WG9IRzFMaWZTb1hxZWwvbW9ycXp0TTB6Snor?=
 =?utf-8?B?Y0J6RzJkSmgxcFd2bG05emtLYkNuSmtHZFY4b2JMdzlrWjViSHVNcERzLzlF?=
 =?utf-8?B?QTgxdzFRZjI3aXowZDJ5Sll4ZDdNVzY3dlhrN1pYdG5ROXdKNEQzQ1V2OFZ4?=
 =?utf-8?B?Y3NpbkVCY3pRWUhTMjNaWFNIWFo0cmprRnlxUW1tT1VOUXErQ21qOWNaU2E5?=
 =?utf-8?B?Ym5rb2tyR1FCRUZmTjdwQ091OTBNaythcFp2N1k1RUVXMUZSNnkzL0d4L3FB?=
 =?utf-8?B?bTlIcldPTDZ3WGNodGRqYWZlN1JFZUpmQjh1Q1dQMVNsbkwxSm1RUm1Ybmhx?=
 =?utf-8?B?cmxJb0kvZTg5Nk9MOWplTFhhYVY2WEZKTXNOWm1YeU4wNUQwRHlvdWdKa04x?=
 =?utf-8?B?ZWtRSlZ2YUd1aE5SVzdXUEo3RG5yckNFNTZpK1Q3U3BEaHJvVTZoVTVBVGkx?=
 =?utf-8?B?dzh6VkxBcytMOE9oRUVPRGtEQktPSzVrMDNMaTVZazEzSFZ4MFZlM2cwV3Vz?=
 =?utf-8?B?V2ozVGVONElqU1hOVndGMEZlRFdZNlpHcklUOXpFLzY2bWRXQTcxVkErcW5D?=
 =?utf-8?B?VUVvUFJTRi8vOEVDQWlsQ25HWlJWa2pyV2RRMjhOdXNCT21CZWNuMzVIREN3?=
 =?utf-8?B?dFcrRkF1YnJwdTJHdjhuQWhsckhHVllPaVNhdWNUZXducFBQeUkzMzNmZVBn?=
 =?utf-8?B?T1hlWG5SUjVlRzB4bkZoTUxqbDhoejlsRWx2dWk3VFliVVk0SDJ2UU9UaXV2?=
 =?utf-8?Q?IvN9nySI8mFvyMrXmwgcNUn4E?=
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
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: a12e9c09-b0e1-47c3-f547-08db8350baa4
X-MS-Exchange-CrossTenant-originalarrivaltime: 13 Jul 2023 03:24:55.4639
 (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: dSNfYNNASVm50vEWa2D9AWTmiGglRQ9J3qtkK/b2e+H3k7C1FiKv8uLpmWMB/o3Bd0tbHt6954B8L9XyTfURKw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR11MB5980
X-OriginatorOrg: intel.com
X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,
        RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE
        autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
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