Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37;
From:   "Tian, Kevin" <kevin.tian@intel.com>
To:     Baolu Lu <baolu.lu@linux.intel.com>,
        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>
CC:     "Liu, Yi L" <yi.l.liu@intel.com>,
        Jacob Pan <jacob.jun.pan@linux.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 v4 09/10] iommu: Make iommu_queue_iopf() more generic
Thread-Topic: [PATCH v4 09/10] iommu: Make iommu_queue_iopf() more generic
Thread-Index: AQHZ1vydYVSBpw8DUkS1M41ymLRuMK/6p/jwgAGR2gCABkO3EIABz/QAgAECbfCABnSVAIAJh5mQgABh4gCAAnd2QA==
Date:   Wed, 13 Sep 2023 02:34:55 +0000
Message-ID: <BN9PR11MB52769C830A65FCE6CBA037278CF0A@BN9PR11MB5276.namprd11.prod.outlook.com>
References: <20230825023026.132919-1-baolu.lu@linux.intel.com>
 <20230825023026.132919-10-baolu.lu@linux.intel.com>
 <BN9PR11MB52762A33BC9F41AB424915688CE3A@BN9PR11MB5276.namprd11.prod.outlook.com>
 <cfd9e0b8-167e-a79b-9ef1-b3bfa38c9199@linux.intel.com>
 <BN9PR11MB5276926066CC3A8FCCFD3DB08CE6A@BN9PR11MB5276.namprd11.prod.outlook.com>
 <ed11a5c4-7256-e6ea-e94e-0dfceba6ddbf@linux.intel.com>
 <BN9PR11MB5276622C8271402487FA44708CE4A@BN9PR11MB5276.namprd11.prod.outlook.com>
 <c9228377-0a5c-adf8-d0ef-9a791226603d@linux.intel.com>
 <BN9PR11MB52764790D53DF8AB4ED417098CF2A@BN9PR11MB5276.namprd11.prod.outlook.com>
 <eca39154-bc45-3c7d-88a9-b377f4d248f9@linux.intel.com>
In-Reply-To: <eca39154-bc45-3c7d-88a9-b377f4d248f9@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?YVIzUW9DMkRPQjgyT0VqbDdlb0RLQ0RxQlo5VG12bHdEZXg1czJ0VGtxMmhY?=
 =?utf-8?B?NmhKYXJrZ21LNTBZUXlpS1NqUGVuc1F1NXM4a0VFWmtMeFN4T3NoVXBueHF0?=
 =?utf-8?B?Tm1IU0xGMGdIdGRHbW9ITmQzWHl2aW1walgxZWV5V3l4UWw1SjNQL0ZRcHJv?=
 =?utf-8?B?SXU5K3J1d3J1RGJKN1ZMNlBWQzNObzZNODZ4amx4bCs0clZkbUV6N3Yxdngw?=
 =?utf-8?B?NE9KVFlQN1RSNER4cEx5L0pFVEdKS0NxYm1TTGtxQldMeWNwcDBlejlWVHU4?=
 =?utf-8?B?TEVUNmFkMnBSeUFlZzRwSnBGOXJYUWJ4eWNvQU9TSXh6WlZYU0N5WHFkMy9n?=
 =?utf-8?B?SE5TNzQvc3pVVS82ZnMrdTdJZEwzMExSeHVSZ3YvUlo4SG1iZkROclAvSXZy?=
 =?utf-8?B?b25CYndwRnJpT3BxQU1OUFV2MlpRejV4S2t3NmtodkNMSFNkamVZYzVQQjk5?=
 =?utf-8?B?aHBJUFh2OEpDUWlqYlpoelhDQzNHQWVWOXNYOG1ScWw4M093ODQyaWxKblRL?=
 =?utf-8?B?eFh6K29vajJMdGpKUmdNNWtaK0NYM1dzREhpQ2JOS1ErcHhpVE5pRm1WbWI5?=
 =?utf-8?B?MTZEZjlnTXl4THdLcEp2K3ZxNUZXWmFSNVVNOWhEOXUzOWVXUUYxVHp1VmJT?=
 =?utf-8?B?NEJ2dUZIM09hWVdBU2RHUEFPdkxFMmF4Sm1acGJSSTR5WlhKb2pmdDVDaC9G?=
 =?utf-8?B?MEdCaHRkUUZNSkQ3YmJYbzd5YjkxV1NVU1B5S1g1clhFUjdhUnliSGNrTW5I?=
 =?utf-8?B?SGU5LzdWT2ovV3ZrVWIzSlRIWk1wczFwWnVIS3BJZitJcU1QQXFMS1BISWwz?=
 =?utf-8?B?RzVqclpWOVJMUjJtYTEyYkZob2FHU0tUM0I3MVNreDVlT0NXMHRXWjByd0o2?=
 =?utf-8?B?WFZtS3dhbmUveWg2NzNOR3JoTmRSSndLRWFRNlcrNmxuSm13QVhaK2hXUWpn?=
 =?utf-8?B?ajMwTlNnRlBObXlSZXlhSGs2WGJ5eFM5OXhVWHh5WXZnSDFkTmRSWFZqd09P?=
 =?utf-8?B?b1ZMYVJtaWcweTRDWXM4UDduMU1MS1VLSFltVGplcXdSZWVQbUlDbGljT0lZ?=
 =?utf-8?B?YkpHM2RsS2Y4MHlrSlFLdFQ4NTdJT2R2N3pSMTRpelpPUEl6M3VLZjdNZm8y?=
 =?utf-8?B?NWIzYkNnd0VGNUhxaUEwMW1MZ05RR2dab2JOSUZVbDAwRzlSdUJpWVI2R0dC?=
 =?utf-8?B?VnFVczBNNERISG1CRzBYR1FGeUVXOTF1Z0FHUVNVZEZFMllUMWZSWFNuSk1M?=
 =?utf-8?B?eGJCOWFDcDZrVkVoUEx1My9SbU5KSVNXOXdqa2djcXpwWEhzMSs5ck1QeU1P?=
 =?utf-8?B?cWE0RkE1N01vdU9qamI0OVNGZXhvNDIwcHY3NEU1VjVRWGFZdWFLKytXTnRC?=
 =?utf-8?B?WmZ1ajJsMmFhYXBCamRLZmQvWnRkSXpjbXBhRDkrNEUwOWVFZTJSWFdxNDgx?=
 =?utf-8?B?OGtOcWxNUlp0c2FaVncrb3V5THNFNGJLbURmN2hnTXRjazd0TlRrOEdITE9G?=
 =?utf-8?B?TElzWktlVlFod05LV1R1VEpIZXRCdzdhcWNUemxsMEpxVTBRMkM3eDlaYWpv?=
 =?utf-8?B?Sy91bGlSZHpwNU9HcEhGZkQyNjFhMzQxSCs2Mis4MVRqY1JpVGlLMjdYdDZE?=
 =?utf-8?B?ZlZFZUQ1eTlpRWhBVml3RmVYbGhVa2I5Q21tRk4vUmR6bWFxd1QzSHRLNnBM?=
 =?utf-8?B?OFppNTFUUktJc1h6OThYMk1uTE82OGNsMlhsRWdBKzFjMUJSWUxXRFdFTHVk?=
 =?utf-8?B?NXRaRE51OVVJaGlFYWZOL1grcm1DL1NkdDEvT0EwSGtjdGZ1WE9UcjRuQXRL?=
 =?utf-8?B?UzZaMTVDS2RXdUlyZDJydkg2L0hVQW44TTYxT3hUd2N5VG03SktaM3lZbEpC?=
 =?utf-8?B?ZFIrd3U3ZC9QaVBOWDlzSnV1akc1SGRFRktEb0V1UzZpQW1IczFnelJqcnpP?=
 =?utf-8?B?cnVEajl6a2dLWkVlb1JPb3Z6WkY3RDdadkdQNDhBbzhQNWxITmNKMDRjQkx1?=
 =?utf-8?B?SENCdi9yV3hOeUtnTjRzVFl3KzM2citVeWdvekwwN2ZOZE9XT3NIR0JYS0g4?=
 =?utf-8?B?SDhGK0NqUHNpWlF2K1ByZms1ak1yV2xVMGVES212bDZaVGx0eHhEU0xQM0s5?=
 =?utf-8?Q?v4PMfPAL12cmeyCcuiu8MYryc?=
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: 835d7930-8156-4793-571e-08dbb4020468
X-MS-Exchange-CrossTenant-originalarrivaltime: 13 Sep 2023 02:34:55.9760
 (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: ml5cLT1TaLNdDVKPn7qbf7rj0UUoNIKiQY8tVOM7mZg1VI0TlsHh1MX/1Qv3wJA4gWYBSxSjIR/kXJpsx9kGLg==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR11MB5270
X-OriginatorOrg: intel.com
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Tue, 12 Sep 2023 19:35:13 -0700 (PDT)
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