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:     "Torvalds, Linus" <torvalds@linux-foundation.org>,
        Jason Gunthorpe <jgg@nvidia.com>
CC:     Jacob Pan <jacob.jun.pan@linux.intel.com>,
        LKML <linux-kernel@vger.kernel.org>,
        "iommu@lists.linux.dev" <iommu@lists.linux.dev>,
        Lu Baolu <baolu.lu@linux.intel.com>,
        Joerg Roedel <joro@8bytes.org>,
        Jean-Philippe Brucker <jean-philippe@linaro.com>,
        "Robin Murphy" <robin.murphy@arm.com>,
        Will Deacon <will@kernel.org>,
        "Raj, Ashok" <ashok.raj@intel.com>,
        "Liu, Yi L" <yi.l.liu@intel.com>,
        "Yu, Fenghua" <fenghua.yu@intel.com>,
        "Hansen, Dave" <dave.hansen@intel.com>
Subject: RE: [PATCH] iommu: Add Kconfig help text for IOMMU_SVA
Thread-Topic: [PATCH] iommu: Add Kconfig help text for IOMMU_SVA
Thread-Index: AQHZgB56n/zP0H2ZUUWJMwAk+LMxWq9NYqsAgABrcoCAAVu+AIABbW4AgAAAlACAAAPEgIAABi2AgABugdA=
Date:   Tue, 9 May 2023 00:10:17 +0000
Message-ID: <BN9PR11MB52760853B80C76F1427284138C769@BN9PR11MB5276.namprd11.prod.outlook.com>
References: <20230506133134.1492395-1-jacob.jun.pan@linux.intel.com>
 <CAHk-=wgUiAtiszwseM1p2fCJ+sC4XWQ+YN4TanFhUgvUqjr9Xw@mail.gmail.com>
 <20230506150741.2e3d2dcc@jacob-builder>
 <CAHk-=wjmOAQnqJF-pW=fzMXb_Rk_J_Oi4ESBLmVPhxwBK4xfGg@mail.gmail.com>
 <20230508094014.53913cf3@jacob-builder>
 <CAHk-=wgobPe0U=Sc-PH08vF-ZbG00KrzftEpQMQ=n0LLNn7y6A@mail.gmail.com>
 <ZFkpk8y8mUZuZjkV@nvidia.com>
 <CAHk-=wiv=Dm5diw2N-4Mx3k8iYWNfyvjzrQxB3JxVLC_7cuY+g@mail.gmail.com>
In-Reply-To: <CAHk-=wiv=Dm5diw2N-4Mx3k8iYWNfyvjzrQxB3JxVLC_7cuY+g@mail.gmail.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?UWhIUnJ2ZmQreFNkVStPeGZ0TTVCUVlkN0Zxd0dNRUcyYVVGZVRjNFN4MW9R?=
 =?utf-8?B?SGFtVmp3c3ZERDUvRE1kd29KOWFWbTU4cVJWZ1ZZRG91d0F2RWZ5ekNaaXlw?=
 =?utf-8?B?bmhLUHBLVjlzdlRGbHM4U0drWmF3anpmVk9pSjZMekxyQ2R4azZZd1htb2Fx?=
 =?utf-8?B?dWpITVJrUUZDLzFaWktIMXY0bXQvS1NhZnhRKzBYNFhVcmxhczJaSWM1S2Zv?=
 =?utf-8?B?YXgzT1UwNjdEZStVTzFHZGhYRGI5S2pZMW9aL1QxQnY1bHBrWHVsLzVQSHA3?=
 =?utf-8?B?Tmo1blpnbmxaQStyRVN4VE00eGRSdGJXdThndGQyblBMemxjZi82QkxZb1VG?=
 =?utf-8?B?ZGhnUUc1TXJkcnRzdEgvcEUwU2ZLVFRwRmU2SnVkc0tmSkJCcFBBZ3U4U1dZ?=
 =?utf-8?B?SGNoTCtVamRUTFdOaTIweDdndzdGRm1yZVRja0ZOVmxQbkNzVTBSTHV5WU03?=
 =?utf-8?B?aE1xWWswaU56Wm41cXdDQzVGUGViL0VkdXZNY1l1dksyQnhwNGxnVVpod0I3?=
 =?utf-8?B?WXZ3YUxoVE9aMG5SYTlydlRDT3dBZU9VQUtDNGpURSs4N0hmWjRPYkIzSi9i?=
 =?utf-8?B?L0h0QmJkZ2w5UWJUcEl3RXhTSUY3eGQxSitRZmRncmMyK2VUSGJBeE5GUHYr?=
 =?utf-8?B?WVNtUTRwVWV4aDhreVdZUC9PVnJKanBDK1hWNEVWQU1QYTZ0bVhLbjg0UHM4?=
 =?utf-8?B?ZUV5WEljcnFNQXBWcWZibm1lWUwyeDBJcmtTTVR5UXBycUV2Vm43WEJDZzdh?=
 =?utf-8?B?RFJEcElTWHFBdTNxSElkb2UzQW5hRmNiVEdlazNqUENlMUJISWJMdEp5dWdV?=
 =?utf-8?B?akw4bmNrVDYxYTRNTGxJZ1pnQ3JheFR6UmJXRWI2QldTaEtLVTFxSUQzNTY0?=
 =?utf-8?B?elZ2aUp5eGw3aGJaRnowU2QrVnFxMkpqQXBXMlZhaExJR0xhQ2doK3RoUTkz?=
 =?utf-8?B?QXNNcmRzalRpVnRpWXJGc1JjZE1UQmJrM3VrOElOUjNld1RSSWt2aVV5OGdi?=
 =?utf-8?B?QlcvK2VTQWJNUTdDd2tRbVBIV1FNT0x4NlZXT1RzNTNZT3loc3JLYTNIK2FY?=
 =?utf-8?B?aEdFL05nL3Y2REdlQ0tpY2lmWVNET3dsdTJRL3N5cnU0a3BXMnBDK283ZHpi?=
 =?utf-8?B?N1gzUEdDQ21yRzlkbktKR2tsV25uampGTVdadjBTbWZQU09sbHJ0RnRhWUE0?=
 =?utf-8?B?dnpONHlyZURpdkh0MWVkc1NCUWRLNVQ4MVRZWStodEdZQUdOb0VKYXQwKy9y?=
 =?utf-8?B?NVdFcTE1em1xb05ydFU5QWh4RUtoRytkbDhrZGlvaEVvYzBUL083Y2JxUlV2?=
 =?utf-8?B?aVBHaEFXeFhHYXArN1M2KzU4VFY5dW9vQnNZWjhHNmJGeE5TU0tjUEtRMjgy?=
 =?utf-8?B?MU5FRzR1NFE3eXZJRVpnNXJMSVd2OXpTZVNpdzMrSloyMm4xeUx3Y1FvUzB5?=
 =?utf-8?B?NjAyT1VmS3J6TFB3ZWNvc3RVbDErZ0xkNnZ3SkFsTExoZXNzakJmbHN4NFBq?=
 =?utf-8?B?T3kvME13MkdxcWNpR0x5NWFaRC9PQTdPUnhCeVRoK2tnaDI4VVVkU2VVZlhU?=
 =?utf-8?B?dUlxMUdUUFpuV0FXSWx2OENiU2V2NWgveS9jbEZwS3NQTFROMGNXNm42U2pM?=
 =?utf-8?B?Q0RBS2k2cklxc2ZRYTc0Q0hhdCtrWnowM25aMDVlRFZLaGRnNXBOOHFwTU9l?=
 =?utf-8?B?UDVOUVl1dUw2b2RKaFhyRmFrY2dBcFpEOTI0MDRaaTAxWUFGZ0dLMDRZeGh6?=
 =?utf-8?B?ZFR6TXpaTlY5Nm12Snd4KzVaVWlpaFlNdUwxRXZTQmhLQ2ZXR3dpbUtjUDY5?=
 =?utf-8?B?VzBNOGhaQU9nU1hoZmNkQys2THFCb2ZBSlJwWDFQT3lDNDFYWTN0ZE5vU3ov?=
 =?utf-8?B?T2Npd0RjaURObXZvdG5kVGREdEdPNkVPOVNFR2YrZ0c2bitLWVhVeXo0QkFT?=
 =?utf-8?B?ZzBWaVp5WGFzVmlJTlQvK01zczk0TFFhVlhyWmdpR2hjOEdycDdTK2lJcnJP?=
 =?utf-8?B?VmVHckdmVWVKbStNWkZBKzNUZ1VKMWNJczU3SGlhTHVXMUNDVzBPWitsTmNJ?=
 =?utf-8?B?UWZ1RFd6aW9DK24xV3RScHBDd29DT2ZSdzNhN0xKeFhZRkVvbmJoUnRtZGRn?=
 =?utf-8?Q?TdZiwtWKAhKVLtL29TDsh8+Hf?=
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: a538f95a-810b-4d44-924c-08db5021c539
X-MS-Exchange-CrossTenant-originalarrivaltime: 09 May 2023 00:10:17.5784
 (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: zCGzppv/t/L3vqqmJNbvywfjIB2Vxf23cFj4cESPC6Hwt44eJ43b7RDWyRujNv2t/ggM+iVpL4reSps/Y4sHbw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR11MB5268
X-OriginatorOrg: intel.com
X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,
        SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED
        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

PiBGcm9tOiBMaW51cyBUb3J2YWxkcyA8dG9ydmFsZHNAbGludXgtZm91bmRhdGlvbi5vcmc+DQo+
IFNlbnQ6IFR1ZXNkYXksIE1heSA5LCAyMDIzIDE6MTggQU0NCj4gDQo+IE9uIE1vbiwgTWF5IDgs
IDIwMjMgYXQgOTo1NeKAr0FNIEphc29uIEd1bnRob3JwZSA8amdnQG52aWRpYS5jb20+IHdyb3Rl
Og0KPiA+DQo+ID4gQ09ORklHX0lPTU1VX01NX1BBU0lEIHBlcmhhcHM/IFNheXMgd2hhdCBpdCBk
b2VzIHdpdGhvdXQgYSBjbHVlDQo+IGFib3V0DQo+ID4gd2h5IGl0IGRvZXMgaXQuIHg4NiBhcmNo
IGNvZGUgY291bGQgc2VsZWN0IGl0IGlkZWFsbHk/DQo+IA0KPiBNYXliZSB3ZSBkb24ndCBldmVu
IG5lZWQgdGhlICJJT01NVSIgcGFydC4gSXQncyBhIGNvcmUgeDg2DQo+IGFyY2hpdGVjdHVyZSBm
ZWF0dXJlLiBNYXliZSBpdCB1c3VhbGx5IChhbHdheXM/KSBnZXRzIHVzZWQgd2l0aGluIHRoZQ0K
PiBmcmFtZXdvcmsgb2Ygc29tZSBJT01NVSB3b3JrLCBidXQgSSBndWVzcyBFTkNRQ01EIGNvdWxk
IGJlIHVzZWQgaW4NCj4gc29tZSBoYXJkd2lyZWQgd2F5IGV2ZW4gd2l0aG91dCB0aGF0IChpZSBp
cyBpdCBwb3NzaWJsZSB0byBoYXZlIGp1c3QNCj4gc29tZSAiYmFzaWMgUEFTSUQgc2V0IHVwIGJ5
IFZNTSBlbnZpcm9ubWVudCIgdGhpbmc/KQ0KDQpUaGlzIG1ha2VzIHNlbnNlIHRvIG1lLiBBdCBs
ZWFzdCB0aGF0IGlzIG9uZSBwb3NzaWJsZSB3YXkgaW4gY29uY2VwdCwNCnRob3VnaCB3ZSBkb24n
dCBoYXZlIHN1Y2ggZXhhbXBsZSBub3cuDQoNCj4gDQo+IEkgZG9uJ3QgYWN0dWFsbHkga25vdyB3
aG8gdXNlcyBpdCBhbmQgaG93LCBzbyBJJ20gcHJvYmFibHkgbm90IHRoZQ0KPiByaWdodCBwZXJz
b24gdG8gbmFtZSBpdCwgYnV0IGp1c3QgbG9va2luZyBhdCB0aGUgeDg2IGNvZGUgdGhhdCBzZXRz
DQo+IGl0LCB0aGUgUEFTSUQgY29kZSB0ZWNobmljYWxseSBoYXMgbm8gY29ubmVjdGlvbiB0byBh
bnkgaW9tbXUgY29kZSwNCj4gaXQncyBsaXRlcmFsbHkgYSBjb3JlIENQVSBmZWF0dXJlIHdpdGgg
YW4gTVNSIGFuZCBzb21lIG1hZ2ljIGZhdWx0aW5nDQo+IHRoaW5nLCBhbmQgc2VlbXMgdG8gYmUg
cG9zc2libHkgdXNhYmxlIGFzLWlzLg0KPiANCj4gVGhhdCBleGlzdGluZw0KPiANCj4gICAgICNp
ZmRlZiBDT05GSUdfSU9NTVVfU1ZBDQo+IA0KPiBpbiB0aGUgeDg2IHRyYXBzLmMgY29kZSBqdXN0
IGxvb2tzIG9kZCwgYW5kIG1ha2luZyBpdCBiZQ0KPiBDT05GSUdfSU9NTVVfTU1fUEFTSUQgc291
bmRzIGJldHRlciB0byBtZS4gSSdtIGp1c3Qgbm90IHN1cmUgYWJvdXQNCj4gdGhlDQo+ICJJT01N
VSIgcGFydCBlaXRoZXIuIEp1c3QgIk1NX1BBU0lEIj8NCj4gDQo+IFRoYXQgc2FpZCwgdGhlIGFy
bS1zbW11LXYzLXN2YS5jIGNvZGUgY2xlYXJseSAqYWxzbyogdXNlcyBwYXNpZCwNCj4gZXhjZXB0
IGl0IHNlZW1zIHRvIHJlYWxseSB3YW50IHRvIGNhbGwgaXQgInNzaWQiLg0KPiANCj4gU28gImhh
dmluZyBhIHBlci1tbSBBU0lEIGZvciBJTyIgaXMgY2xlYXJseSBhIGNvbW1vbiBmZWF0dXJlLiBC
dXQNCg0KWWVzLiBDdXJyZW50bHkgUEFTSUQgZm9yIG1tIGlzIGdsb2JhbGx5IGFsbG9jYXRlZCBz
byBlYWNoIG1tIGlzDQphc3NvY2lhdGVkIHdpdGggYSBzaW5nbGUgdW5pcXVlIHBhc2lkLiANCg0K
PiBuYW1pbmcgc2VlbXMgaGFyZCwgd2l0aCB4ODYgY2FsbGluZyBpdCBQQVNJRCwgYXJtNjQgc2Vl
bWluZ2x5IGNhbGxpbmcNCj4gaXQgIlNTSUQiLg0KPiANCj4gUmlnaHQgbm93IHRoZSBvbmx5IHVz
ZXIgKmRvZXMqIHNlZW0gdG8gYmUgdGhyb3VnaCB0aGUgSU9NTVUgU1ZBIGNvZGUsDQo+IGJ1dCB0
aGF0IG1heSBvciBtYXkgbm90IGJlIGZ1bmRhbWVudGFsLg0KPiANCj4gTm93LCAiU1NJRCIgaXMg
YSBjb21wbGV0ZWx5IGhvcnJpYmxlIG5hbWUsIGFzIEkgaW1tZWRpYXRlbHkgcmVhbGl6ZWQNCj4g
d2hlbiBJIHRyaWVkIHRvIGdvb2dsZSBmb3IgaXQuIFNvIGFybTY0IGlzIGp1c3Qgd3JvbmcsIGFu
ZCB3ZSdyZSBtb3N0DQo+IGRlZmluaXRlbHkgY29udGludWluZyB0byBjYWxsIGl0IFBBU0lELg0K
DQpXZSBoYXZlIHVuZGVyZ29uZSB0aGlzIG5hbWluZyBnYW1lIHdoZW4gZW5hYmxpbmcgU1ZBIGJl
Zm9yZS4NCg0KQXQgdGhhdCBwb2ludCBJT0FTSUQgd2FzIGNvbnNpZGVyZWQgYXMgYSBnZW5lcmlj
IHRlcm0gdG8gY292ZXIgYm90aA0KUENJIFBBU0lEIGFuZCBBUk0gc3BlY2lmaWMgU1NJRC4gQnV0
IGluIHRoZSBlbmQgUEFTSUQvSU9BU0lEIGFyZQ0Kc3RpbGwgbWl4ZWQgaW4gbWFueSBjb21tb24g
Y29kZS4NCg0KSU1ITyBzdGlja2luZyB3aXRoIFBBU0lEIHNob3VsZCBiZSBmaW5lLiANCg0KPiAN
Cj4gSSdkIGxlYW4gdG93YXJkcyBqdXN0ICJDT05GSUdfTU1fUEFTSUQiIG9yIHNvbWV0aGluZywg
YnV0IGF0IHNvbWUNCj4gcG9pbnQgdGhpcyBpcyBiaWtlc2hlZGRpbmcsIGFuZCBJIGRvbid0IGtu
b3cgYWJvdXQgYW55IHBvc3NpYmxlDQo+IG5vbi1pb21tdSBkaXJlY3QgdXNlcz8NCj4gDQoNCkkg
YWdyZWUgdGhhdCBDT05GSUdfTU1fUEFTSUQgaXMgbW9yZSBhY2N1cmF0ZSBpbiBkZWZpbml0aW9u
Lg0K