From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 5177471B3; Fri, 12 Jan 2018 02:15:50 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Jan 2018 17:15:47 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,346,1511856000"; d="scan'208";a="194318909" Received: from fmsmsx103.amr.corp.intel.com ([10.18.124.201]) by fmsmga006.fm.intel.com with ESMTP; 11 Jan 2018 17:15:47 -0800 Received: from fmsmsx158.amr.corp.intel.com (10.18.116.75) by FMSMSX103.amr.corp.intel.com (10.18.124.201) with Microsoft SMTP Server (TLS) id 14.3.319.2; Thu, 11 Jan 2018 17:15:47 -0800 Received: from shsmsx101.ccr.corp.intel.com (10.239.4.153) by fmsmsx158.amr.corp.intel.com (10.18.116.75) with Microsoft SMTP Server (TLS) id 14.3.319.2; Thu, 11 Jan 2018 17:15:47 -0800 Received: from shsmsx103.ccr.corp.intel.com ([169.254.4.213]) by SHSMSX101.ccr.corp.intel.com ([169.254.1.159]) with mapi id 14.03.0319.002; Fri, 12 Jan 2018 09:15:22 +0800 From: "Tan, Jianfeng" To: Maxime Coquelin CC: "dev@dpdk.org" , "stable@dpdk.org" , "santosh.shukla@caviumnetworks.com" , "Burakov, Anatoly" , "thomas@monjalon.net" , "stephen@networkplumber.org" , "peterx@redhat.com" Thread-Topic: [PATCH v2] bus/pci: forbid VA as IOVA mode if IOMMU address width too small Thread-Index: AQHTiUxWQHM0NduEwEiMYb8w9xQpMqNumk0AgADTC3A= Date: Fri, 12 Jan 2018 01:15:21 +0000 Message-ID: References: <20180109131801.26520-1-maxime.coquelin@redhat.com> <5c168150-7dcc-c110-a3d6-968738d781f7@redhat.com> In-Reply-To: <5c168150-7dcc-c110-a3d6-968738d781f7@redhat.com> 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] [PATCH v2] bus/pci: forbid VA as IOVA mode if IOMMU address width too small X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Jan 2018 01:15:51 -0000 SGkgTWF4aW1lLA0KDQo+IC0tLS0tT3JpZ2luYWwgTWVzc2FnZS0tLS0tDQo+IEZyb206IE1heGlt ZSBDb3F1ZWxpbiBbbWFpbHRvOm1heGltZS5jb3F1ZWxpbkByZWRoYXQuY29tXQ0KPiBTZW50OiBG cmlkYXksIEphbnVhcnkgMTIsIDIwMTggNDoyMCBBTQ0KPiBUbzogVGFuLCBKaWFuZmVuZw0KPiBD YzogZGV2QGRwZGsub3JnOyBzdGFibGVAZHBkay5vcmc7IHNhbnRvc2guc2h1a2xhQGNhdml1bW5l dHdvcmtzLmNvbTsNCj4gQnVyYWtvdiwgQW5hdG9seTsgdGhvbWFzQG1vbmphbG9uLm5ldDsgc3Rl cGhlbkBuZXR3b3JrcGx1bWJlci5vcmc7DQo+IHBldGVyeEByZWRoYXQuY29tDQo+IFN1YmplY3Q6 IFJlOiBbUEFUQ0ggdjJdIGJ1cy9wY2k6IGZvcmJpZCBWQSBhcyBJT1ZBIG1vZGUgaWYgSU9NTVUg YWRkcmVzcw0KPiB3aWR0aCB0b28gc21hbGwNCj4gDQo+IEhpIEppYW5mZW5nLA0KPiANCj4gT24g MDEvMDkvMjAxOCAwMjoxOCBQTSwgTWF4aW1lIENvcXVlbGluIHdyb3RlOg0KPiA+IEludGVsIFZU LWQgc3VwcG9ydHMgZGlmZmVyZW50IGFkZHJlc3Mgd2lkdGhzIGZvciB0aGUgSU9WQXMsIGZyb20N Cj4gPiAzOSBiaXRzIHRvIDU2IGJpdHMuDQo+ID4NCj4gPiBXaGlsZSByZWNlbnQgcHJvY2Vzc29y cyBzdXBwb3J0IGF0IGxlYXN0IDQ4IGJpdHMsIFZULWQgZW11bGF0aW9uDQo+ID4gY3VycmVudGx5 IG9ubHkgc3VwcG9ydHMgMzkgYml0cy4gSXQgbWFrZXMgRE1BIG1hcHBpbmcgdG8gZmFpbCBpbiB0 aGlzDQo+ID4gY2FzZSB3aGVuIHVzaW5nIFZBIGFzIElPVkEgbW9kZSwgYXMgdXNlci1zcGFjZSB2 aXJ0dWFsIGFkZHJlc3NlcyB1c2VzDQo+ID4gdXAgdG8gNDcgYml0cyAoc2VlIGtlcm5lbCdzIERv Y3VtZW50YXRpb24veDg2L3g4Nl82NC9tbS50eHQpLg0KDQpZZXMsIEkgYWxzbyBub3RpY2UgdGhp cyBpc3N1ZSBvbiBzb21lIG9mIEludGVsIHBsYXRmb3JtIHdpdGggbGltaXRlZCB3aWR0aCBmb3Ig SU9WQS4gQnV0IEkgd2FzIGFsd2F5cyBzdWdnZXN0aW5nIHRvIHVzZSAtLWJhc2UtdmlydGFkZHIg dG8gd29yayBhcm91bmQuDQoNCj4gPg0KPiA+IFRoaXMgcGF0Y2ggcGFyc2VzIFZULWQgQ0FQIHJl Z2lzdGVyIHZhbHVlIGF2YWlsYWJsZSBpbiBzeXNmcywgYW5kDQo+ID4gZm9yYmlkIFZBIGFzIElP VkEgbW9kZSBpZiB0aGUgR0FXIGlzIDM5IGJpdHMgb3IgdW5rbm93bi4NCj4gPg0KPiA+IEZpeGVz OiBmMzdkZmFiMjFjOTggKCJkcml2ZXJzL25ldDogZW5hYmxlIElPVkEgbW9kZSBmb3IgSW50ZWwg UE1EcyIpDQo+ID4NCj4gPiBDYzogc3RhYmxlQGRwZGsub3JnDQo+ID4gU2lnbmVkLW9mZi1ieTog TWF4aW1lIENvcXVlbGluIDxtYXhpbWUuY29xdWVsaW5AcmVkaGF0LmNvbT4NCj4gPiAtLS0NCj4g Pg0KPiA+IENoYW5nZXMgaW4gdjI6DQo+ID4gPT09PT09PT09PT09PT0NCj4gPiAtIFJld29yayBw Y2lfb25lX2RldmljZV9pb21tdV9zdXBwb3J0X3ZhICNpZmRlZmVyeSAoU3RlcGhlbikNCj4gPiAt IERvbid0IGlubGluZSBpbnRyb2R1Y2VkIGZ1bmN0aW9ucyAoU3RlcGhlbikNCj4gPg0KPiA+ICAg ZHJpdmVycy9idXMvcGNpL2xpbnV4L3BjaS5jIHwgMTA4DQo+ICsrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrKysrKystLS0tDQo+ID4gICAxIGZpbGUgY2hhbmdlZCwgOTkgaW5zZXJ0 aW9ucygrKSwgOSBkZWxldGlvbnMoLSkNCj4gPg0KPiANCj4gQ291bGQgeW91IHBsZWFzZSB0cnkg dGhlIHBhdGNoIGFuZCBjb25maXJtIGl0IGRvZXMgbm90IGJyZWFrIHlvdXINCj4gLS1uby1odWdl IHVzZWNhc2U/DQoNCkkndmUgdGVzdGVkIHRoZSAtLW5vLWh1Z2UgY2FzZSwgaXQgc3RpbGwgd29y a3Mgb24gbXkgeGVvbiBFNSBzZXJ2ZXIuIEknbGwgYWRkIG15IFRlc3RlZC1ieSB0byB0aGUgb3Jp Z2luYWwgcGF0Y2guDQoNCj4gDQo+IEFyZSB5b3UgZmluZSB3aXRoIHRoZSBmaXg/DQoNCkZvcmJp ZGRpbmcgc3VjaCB1c2FnZSBzZWVtcyBhIGxpdHRsZSBvdmVya2lsbCB0byBtZSBhY3R1YWxseS4g SG93IGFib3V0IGp1c3QgbWFraW5nIGl0IGFzIGEgd2FybmluZyBsaWtlOg0KICAiSU9NTVUgb25s eSBzdXBwb3J0IDM5LWJpdCBJT1ZBIGFkZHJlc3MsIHlvdSBtaWdodCB3YW50IHRvIHVzZSAtLWJh c2UtdmlydGFkZHIgdG8gcmVzdHJpY3QgdGhlIHJhbmdlIG9mIHZpcnR1YWwgYWRkcmVzcyAoSU9W QSkiDQoNClRoYW5rcywNCkppYW5mZW5nDQoNCj4gDQo+IFRoYW5rcywNCj4gTWF4aW1lDQo=