From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gary R Hook Subject: Re: [PATCH] iommu/amd: Reserve exclusion range in iova-domain Date: Fri, 29 Mar 2019 15:06:41 +0000 Message-ID: <241612a5-b041-e419-a3bc-e2a2e6ef1687@amd.com> References: <20190328104459.18589-1-joro@8bytes.org> <3850c381-30d6-b2a3-d976-66939d8e612a@amd.com> <20190329145101.GA27670@8bytes.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20190329145101.GA27670@8bytes.org> Content-Language: en-US Content-ID: <5FCFB7220A210641957EFD4281705B35@namprd12.prod.outlook.com> Sender: linux-kernel-owner@vger.kernel.org To: Joerg Roedel Cc: "iommu@lists.linux-foundation.org" , Joerg Roedel , "linux-kernel@vger.kernel.org" List-Id: iommu@lists.linux-foundation.org T24gMy8yOS8xOSA5OjUxIEFNLCBKb2VyZyBSb2VkZWwgd3JvdGU6DQo+IEhpIEdhcnksDQo+IA0K PiBPbiBUaHUsIE1hciAyOCwgMjAxOSBhdCAwMjo1MjoxOVBNICswMDAwLCBHYXJ5IFIgSG9vayB3 cm90ZToNCj4+IE9uIDMvMjgvMTkgNTo0NCBBTSwgSm9lcmcgUm9lZGVsIHdyb3RlOg0KPj4+ICsJ CWlmIChlbnRyeS0+cHJvdCAmICgxIDw8IDIpKQ0KPj4NCj4+IENvdWxkIHdlIGFkZCAjZGVmaW5l IElPTU1VX1dSSVRFX0VYQ0wgKDEgPDwgMikgdG8gYW1kX2lvbW11X3R5cGVzLmg/DQo+IA0KPiBZ ZXMsIEkgcmVwbGFjZSB0aGF0IG1hZ2ljIG51bWJlciB3aXRoIGEgZGVzY3JpcHRpdmUgbmFtZS4N Cg0KU3VwZXI7IHRoYW5rcy4NCg0KPj4gVGhlIHByb2JsZW0gSSBzZWUgaGVyZSBpcyB0aGF0IGlm LCBmb3Igc29tZSB1bnRvbGQgcmVhc29uLCB0aGVyZSBpcyBtb3JlDQo+PiB0aGFuIG9uZSBleGNs dXNpb24gcmFuZ2UgZW1pdHRlZCwgd2hlcmUgb25seSB0aGUgbGFzdCBvbmUgd2lucyBpbiB0aGUN Cj4+IGhhcmR3YXJlLCB3ZSdkIHN0aWxsIGVuZCB1cCB3aXRoIG1vcmUgdGhhbiBvbmUgcmFuZ2Ug cmVzZXJ2ZWQgaW4gdGhlDQo+PiBJT1ZBIHRyZWUuIENsZWFybHksIHRoaXMgaXMgZXh0cmVtZWx5 IHVubGlrZWx5LCBidXQgd291bGRuJ3Qgd2Ugd2FudCB0bw0KPj4gcHJvdGVjdCBhZ2FpbnN0IHRo YXQgc29ydCBvZiBtaXN1c2UvbWlzdGFrZT8NCj4+DQo+PiBJIGNvdWxkIGJlIG1pc3Npbmcgc29t ZXRoaW5nLg0KPiANCj4gTm8sIHlvdSBhcmUgbm90LCB0aGlzIGNvdWxkIHN0aWxsIGJlIGEgcHJv YmxlbS4gVW50aWwgbm93IGl0IGlzbid0LA0KPiBiZWNhdXNlIHRoaXMgd2VlayB3YXMgdGhlIGZp cnN0IHRpbWUgSSBoYXZlIGV2ZXJ5IHNlZW4gYW4gQU1EIElPTU1VDQo+IHN5c3RlbSBtYWtpbmcg dXNlIG9mIGV4Y2x1c2lvbiByYW5nZXMsIGFuZCBpdCBkb2Vzbid0IGhhdmUgdGhpcyBwcm9ibGVt Lg0KPiANCj4gQnV0IHRoaXMgcHJvYmxlbSBoYXMgYmVlbiBpbiB0aGUgY29kZSBldmVuIGJlZm9y ZSB0aGlzIHBhdGNoIGFuZCBuZWVkcw0KPiB0byBiZSBhZGRyZXNzZWQgc2VwYXJhdGx5LiBJIHRo aW5rIGl0IGlzIHRoZSBiZXN0IG9wdGlvbiB0byBjYW5jZWwgSU9NTVUNCj4gaW5pdGlhbGl6YXRp b24gd2hlbiB0aGUgSVZSUyB0YWJsZSBkZWZpbmVzIGNvbmZsaWN0aW5nIGV4Y2x1c2lvbiByYW5n ZXMNCj4gZm9yIGEgc2luZ2xlIElPTU1VIGluc3RhbmNlLg0KDQpSZWFsbHk/IEludGVyZXN0aW5n LiBNYXkgSSBhc2sgd2hvLCBhcyBJJ3ZlIG5vdCBzZWVuIGl0IHlldCwgZWl0aGVyPw0KDQpUaGlz IGNoYW5nZSBhY2NvbXBsaXNoZXMgdGhlIGdvYWwgb2Ygc2V0dGluZyBleGNsdXNpb24gKyByZXNl cnZpbmcgdGhlIA0KSU9WQSByYW5nZSwgYW5kIGlzIHZlcmlmaWVkIHdpdGggdGVzdGluZz8gQ29v bC4gT25lIHdvbmRlcnMgaWYgdGhleSd2ZSANCmNvbnNpZGVyZWQgYSB1bml0eSByYW5nZT8NCg0K QWdyZWUgdGhhdCBhZGRyZXNzaW5nIHRoZSB1bmlxdWVuZXNzIGlzc3VlIHNlcGFyYXRlbHkgaXMg ZmluZS4gSSdkIA0KcHJvYmFibHkgcHJlZmVyICJmaXJzdCBvbmUgd2lucyIgdW50aWwgSU9WQSB0 cmVlIGNsZWFuLXVwIGNvdWxkIGJlIA0KaW1wbGVtZW50ZWQgZm9yICJsYXN0IG9uZSB3aW5zIi4u Li4gYnV0IEknbSBzZWVpbmcgdGhhdCB0aGVyZSBhcmUgYXQgDQpsZWFzdCB0d28gc3BvdHMgaW4g dGhlIGNvZGUgdGhhdCBuZWVkIGF0dGVudGlvbi4gSSBtYXkgZ28gZXhwZXJpbWVudCANCndpdGgg dGhpcy4NCg0KQWxsIHRvbGQsIHRoaXMgaXMgcmVhbGx5IGFib3V0IGhhbmRsaW5nIGEgY29ybmVy IGNhc2UsIGFzIHRoZSBsaWtlbGlob29kIA0Kb2YgYSBCSU9TIHRyeWluZyB0byBzZXQgdXAgPjEg ZXhjbHVzaW9uIHJhbmdlcyBzZWVtcyBpbXByb2JhYmxlLCBpZiBub3QgDQppbXBvc3NpYmxlLg0K DQoNCmdyaA0K