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To: "Tian, Kevin" , Nadav Amit CC: chenjiashang , David Woodhouse , "iommu@lists.linux-foundation.org" , LKML , "alex.williamson@redhat.com" , "Gonglei (Arei)" , "will@kernel.org" Subject: =?utf-8?B?UkU6IEEgcHJvYmxlbSBvZiBJbnRlbCBJT01NVSBoYXJkd2FyZSDvvJ8=?= Thread-Topic: =?utf-8?B?QSBwcm9ibGVtIG9mIEludGVsIElPTU1VIGhhcmR3YXJlIO+8nw==?= Thread-Index: AQHXGtwEduPlUZeCNUCbiy3s/+KwAaqHJckAgADDZTCAAA0+AIABZ4Ng//+HOQCAAIduIA== Date: Thu, 18 Mar 2021 08:38:58 +0000 Message-ID: References: <670baaf8-4ff8-4e84-4be3-030b95ab5a5e@huawei.com> <6a218e7fe42d41489d02f0b4e3ad2756@huawei.com> <98DB71EF-FF98-4509-85EC-26FF50825A58@gmail.com> <4d1c3bc0418e48b1b9d44799d65ea375@huawei.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.174.151.207] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogVGlhbiwgS2V2aW4gW21h aWx0bzprZXZpbi50aWFuQGludGVsLmNvbV0NCj4gU2VudDogVGh1cnNkYXksIE1hcmNoIDE4LCAy MDIxIDQ6MjcgUE0NCj4gVG86IExvbmdwZW5nIChNaWtlLCBDbG91ZCBJbmZyYXN0cnVjdHVyZSBT ZXJ2aWNlIFByb2R1Y3QgRGVwdC4pDQo+IDxsb25ncGVuZzJAaHVhd2VpLmNvbT47IE5hZGF2IEFt aXQgPG5hZGF2LmFtaXRAZ21haWwuY29tPg0KPiBDYzogY2hlbmppYXNoYW5nIDxjaGVuamlhc2hh bmdAaHVhd2VpLmNvbT47IERhdmlkIFdvb2Rob3VzZQ0KPiA8ZHdtdzJAaW5mcmFkZWFkLm9yZz47 IGlvbW11QGxpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnOyBMS01MDQo+IDxsaW51eC1rZXJuZWxA dmdlci5rZXJuZWwub3JnPjsgYWxleC53aWxsaWFtc29uQHJlZGhhdC5jb207IEdvbmdsZWkgKEFy ZWkpDQo+IDxhcmVpLmdvbmdsZWlAaHVhd2VpLmNvbT47IHdpbGxAa2VybmVsLm9yZw0KPiBTdWJq ZWN0OiBSRTogQSBwcm9ibGVtIG9mIEludGVsIElPTU1VIGhhcmR3YXJlIO+8nw0KPiANCj4gPiBG cm9tOiBpb21tdSA8aW9tbXUtYm91bmNlc0BsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZz4gT24g QmVoYWxmIE9mDQo+ID4gTG9uZ3BlbmcgKE1pa2UsIENsb3VkIEluZnJhc3RydWN0dXJlIFNlcnZp Y2UgUHJvZHVjdCBEZXB0LikNCj4gPg0KPiA+ID4gMi4gQ29uc2lkZXIgZW5zdXJpbmcgdGhhdCB0 aGUgcHJvYmxlbSBpcyBub3Qgc29tZWhvdyByZWxhdGVkIHRvDQo+ID4gPiBxdWV1ZWQgaW52YWxp ZGF0aW9ucy4gVHJ5IHRvIHVzZSBfX2lvbW11X2ZsdXNoX2lvdGxiKCkgaW5zdGVhZCBvZg0KPiBx aV9mbHVzaF9pb3RsYigpLg0KPiA+ID4NCj4gPg0KPiA+IEkgdHJpZWQgdG8gZm9yY2UgdG8gdXNl IF9faW9tbXVfZmx1c2hfaW90bGIoKSwgYnV0IG1heWJlIHNvbWV0aGluZw0KPiA+IHdyb25nLCB0 aGUgc3lzdGVtIGNyYXNoZWQsIHNvIEkgcHJlZmVyIHRvIGxvd2VyIHRoZSBwcmlvcml0eSBvZiB0 aGlzIG9wZXJhdGlvbi4NCj4gPg0KPiANCj4gVGhlIFZULWQgc3BlYyBjbGVhcmx5IHNheXMgdGhh dCByZWdpc3Rlci1iYXNlZCBpbnZhbGlkYXRpb24gY2FuIGJlIHVzZWQgb25seSB3aGVuDQo+IHF1 ZXVlZC1pbnZhbGlkYXRpb25zIGFyZSBub3QgZW5hYmxlZC4gSW50ZWwtSU9NTVUgZHJpdmVyIGRv ZXNuJ3QgcHJvdmlkZSBhbg0KPiBvcHRpb24gdG8gZGlzYWJsZSBxdWV1ZWQtaW52YWxpZGF0aW9u IHRob3VnaCwgd2hlbiB0aGUgaGFyZHdhcmUgaXMgY2FwYWJsZS4gSWYgeW91DQo+IHJlYWxseSB3 YW50IHRvIHRyeSwgdHdlYWsgdGhlIGNvZGUgaW4gaW50ZWxfaW9tbXVfaW5pdF9xaS4NCj4gDQoN CkhpIEtldmluLA0KDQpUaGFua3MgdG8gcG9pbnQgb3V0IHRoaXMuIERvIHlvdSBoYXZlIGFueSBp ZGVhcyBhYm91dCB0aGlzIHByb2JsZW0gPyBJIHRyaWVkDQp0byBkZXNjcmlwdCB0aGUgcHJvYmxl bSBtdWNoIGNsZWFyIGluIG15IHJlcGx5IHRvIEFsZXgsIGhvcGUgeW91IGNvdWxkIGhhdmUNCmEg bG9vayBpZiB5b3UncmUgaW50ZXJlc3RlZC4NCg0KPiBUaGFua3MNCj4gS2V2aW4NCg==