From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 0285E2A9 for ; Tue, 21 Oct 2014 00:36:06 +0200 (CEST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 20 Oct 2014 15:44:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,758,1406617200"; d="scan'208";a="622192258" Received: from pgsmsx101.gar.corp.intel.com ([10.221.44.78]) by orsmga002.jf.intel.com with ESMTP; 20 Oct 2014 15:42:47 -0700 Received: from kmsmsx153.gar.corp.intel.com (172.21.73.88) by PGSMSX101.gar.corp.intel.com (10.221.44.78) with Microsoft SMTP Server (TLS) id 14.3.195.1; Tue, 21 Oct 2014 06:39:48 +0800 Received: from shsmsx151.ccr.corp.intel.com (10.239.6.50) by KMSMSX153.gar.corp.intel.com (172.21.73.88) with Microsoft SMTP Server (TLS) id 14.3.195.1; Tue, 21 Oct 2014 06:39:48 +0800 Received: from shsmsx101.ccr.corp.intel.com ([169.254.1.202]) by SHSMSX151.ccr.corp.intel.com ([169.254.3.44]) with mapi id 14.03.0195.001; Tue, 21 Oct 2014 06:39:47 +0800 From: "Xie, Huawei" To: Shivapriya Hiremath , "dev@dpdk.org" Thread-Topic: [dpdk-dev] Why do we need iommu=pt? Thread-Index: AQHP7LEp0tbihqGEOkyeeaE3cWx4FZw5kyHQ Date: Mon, 20 Oct 2014 22:39:46 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Subject: Re: [dpdk-dev] Why do we need iommu=pt? X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Oct 2014 22:36:07 -0000 DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogZGV2IFttYWlsdG86ZGV2 LWJvdW5jZXNAZHBkay5vcmddIE9uIEJlaGFsZiBPZiBTaGl2YXByaXlhIEhpcmVtYXRoDQo+IFNl bnQ6IE1vbmRheSwgT2N0b2JlciAyMCwgMjAxNCAyOjU5IFBNDQo+IFRvOiBkZXZAZHBkay5vcmcN Cj4gU3ViamVjdDogW2RwZGstZGV2XSBXaHkgZG8gd2UgbmVlZCBpb21tdT1wdD8NCj4gDQo+IEhp LA0KPiANCj4gTXkgcXVlc3Rpb24gaXMgdGhhdCBpZiB0aGUgUG9sbCBtb2RlICBkcml2ZXIgdXNl ZCB0aGUgRE1BIGtlcm5lbCBpbnRlcmZhY2UNCj4gdG8gc2V0IHVwIGl0cyBtYXBwaW5ncyBhcHBy b3ByaWF0ZWx5LCB3b3VsZCBpdCBzdGlsbCByZXF1aXJlIHRoYXQgaW9tbXU9cHQNCj4gYmUgc2V0 Pw0KPiBXaGF0IGlzIHRoZSBwdXJwb3NlIG9mIHNldHRpbmcgaW9tbXU9cHQgPw0KUE1EIGFsbG9j YXRlcyBtZW1vcnkgdGhvdWdoIGh1Z2V0bGIgZmlsZSBzeXN0ZW0sIGFuZCBmaWxscyB0aGUgcGh5 c2ljYWwgYWRkcmVzcw0KaW50byB0aGUgZGVzY3JpcHRvci4NCnB0IGlzIHVzZWQgdG8gcGFzcyB0 aHJvdWdoIGlvdGxiIHRyYW5zbGF0aW9uLiBSZWZlciB0byB0aGUgYmVsb3cgbGluay4NCmh0dHA6 Ly9sa21sLml1LmVkdS9oeXBlcm1haWwvbGludXgva2VybmVsLzA5MDYuMi8wMjEyOS5odG1sDQo+ IA0KPiBUaGFuayB5b3UuDQo=