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d="scan'208";a="4426667" From: Paul Durrant To: Paul Durrant , 'Jan Beulich' Thread-Topic: [Xen-devel] [PATCH 3/6] remove late (on-demand) construction of IOMMU page tables Thread-Index: AQHVRuOcaRJ86WB7wUWdfnF755Z/qabvZ0eAgAhNFVCAABIMcIACsp0g Date: Wed, 14 Aug 2019 09:39:42 +0000 Message-ID: <0854e0578b7445dbb7ac2e65ed81153b@AMSPEX02CL03.citrite.net> References: <20190730134419.2739-1-paul.durrant@citrix.com> <20190730134419.2739-4-paul.durrant@citrix.com> <1383f85e-bc08-c0be-bb02-f68b76ac1be5@suse.com> <0134b70d04b942b4b3ce65fd2340ff0c@AMSPEX02CL03.citrite.net> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted MIME-Version: 1.0 Subject: Re: [Xen-devel] [PATCH 3/6] remove late (on-demand) construction of IOMMU page tables X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: 'Petre Pircalabu' , 'Stefano Stabellini' , 'Wei Liu' , 'Razvan Cojocaru' , 'Konrad Rzeszutek Wilk' , Andrew Cooper , "Tim \(Xen.org\)" , George Dunlap , 'Julien Grall' , 'Tamas K Lengyel' , "'xen-devel@lists.xenproject.org'" , 'Alexandru Isaila' , Ian Jackson , 'VolodymyrBabchuk' , Roger Pau Monne Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KPiBGcm9tOiBYZW4tZGV2ZWwgPHhlbi1kZXZl bC1ib3VuY2VzQGxpc3RzLnhlbnByb2plY3Qub3JnPiBPbiBCZWhhbGYgT2YgUGF1bCBEdXJyYW50 DQo+IFNlbnQ6IDEyIEF1Z3VzdCAyMDE5IDE3OjI2DQo+IFRvOiAnSmFuIEJldWxpY2gnIDxqYmV1 bGljaEBzdXNlLmNvbT4NCj4gQ2M6ICdQZXRyZSBQaXJjYWxhYnUnIDxwcGlyY2FsYWJ1QGJpdGRl ZmVuZGVyLmNvbT47ICdTdGVmYW5vIFN0YWJlbGxpbmknIDxzc3RhYmVsbGluaUBrZXJuZWwub3Jn PjsNCj4gJ1dlaSBMaXUnIDx3bEB4ZW4ub3JnPjsgJ1JhenZhbiBDb2pvY2FydScgPHJjb2pvY2Fy dUBiaXRkZWZlbmRlci5jb20+OyAnS29ucmFkIFJ6ZXN6dXRlayBXaWxrJw0KPiA8a29ucmFkLndp bGtAb3JhY2xlLmNvbT47IEFuZHJldyBDb29wZXIgPEFuZHJldy5Db29wZXIzQGNpdHJpeC5jb20+ OyBUaW0gKFhlbi5vcmcpIDx0aW1AeGVuLm9yZz47DQo+IEdlb3JnZSBEdW5sYXAgPEdlb3JnZS5E dW5sYXBAY2l0cml4LmNvbT47ICdKdWxpZW4gR3JhbGwnIDxqdWxpZW4uZ3JhbGxAYXJtLmNvbT47 ICdUYW1hcyBLIExlbmd5ZWwnDQo+IDx0YW1hc0B0a2xlbmd5ZWwuY29tPjsgSWFuIEphY2tzb24g PElhbi5KYWNrc29uQGNpdHJpeC5jb20+OyAnQWxleGFuZHJ1IElzYWlsYScNCj4gPGFpc2FpbGFA Yml0ZGVmZW5kZXIuY29tPjsgJ3hlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZycgPHhlbi1k ZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZz47DQo+ICdWb2xvZHlteXJCYWJjaHVrJyA8Vm9sb2R5 bXlyX0JhYmNodWtAZXBhbS5jb20+OyBSb2dlciBQYXUgTW9ubmUgPHJvZ2VyLnBhdUBjaXRyaXgu Y29tPg0KPiBTdWJqZWN0OiBSZTogW1hlbi1kZXZlbF0gW1BBVENIIDMvNl0gcmVtb3ZlIGxhdGUg KG9uLWRlbWFuZCkgY29uc3RydWN0aW9uIG9mIElPTU1VIHBhZ2UgdGFibGVzDQo+IA0KPiA+IC0t LS0tT3JpZ2luYWwgTWVzc2FnZS0tLS0tDQo+IFtzbmlwXQ0KPiA+ID4NCj4gPiA+IE9uIDMwLjA3 LjIwMTkgMTU6NDQsIFBhdWwgRHVycmFudCB3cm90ZToNCj4gPiA+ID4gTk9URTogVGhpcyBwYXRj aCB3aWxsIGNhdXNlIGEgc21hbGwgYW1vdW50IG9mIGV4dHJhIHJlc291cmNlIHRvIGJlIHVzZWQN Cj4gPiA+ID4gICAgICAgIHRvIGFjY29tbW9kYXRlIElPTU1VIHBhZ2UgdGFibGVzIHRoYXQgbWF5 IG5ldmVyIGJlIHVzZWQsIHNpbmNlIHRoZQ0KPiA+ID4gPiAgICAgICAgcGVyLWRvbWFpbiBJT01N VSBmbGFnIGVuYWJsZSBmbGFnIGlzIGN1cnJlbnRseSBzZXQgdG8gdGhlIHZhbHVlDQo+ID4gPiA+ ICAgICAgICBvZiB0aGUgZ2xvYmFsIGlvbW11X2VuYWJsZSBmbGFnLiBBIHN1YnNlcXVlbnQgcGF0 Y2ggd2lsbCBhZGQgYW4NCj4gPiA+ID4gICAgICAgIG9wdGlvbiB0byB0aGUgdG9vbHN0YWNrIHRv IGFsbG93IGl0IHRvIGJlIHR1cm5lZCBvZmYgaWYgdGhlcmUgaXMNCj4gPiA+ID4gICAgICAgIG5v IGludGVudGlvbiB0byBhc3NpZ24gcGFzc3Rocm91Z2ggaGFyZHdhcmUgdG8gdGhlIGRvbWFpbi4N Cj4gPiA+DQo+ID4gPiBJbiBwYXJ0aWN1bGFyIGlmIHRoZSBkZWZhdWx0IG9mIHRoaXMgaXMgZ29p bmcgdG8gYmUgInRydWUiIChJDQo+ID4gPiBkaWRuJ3QgbG9vayBhdCB0aGF0IHBhdGNoIHlldCwg YnV0IHRoZSB3b3JkaW5nIGFib3ZlIG1ha2VzIG1lDQo+ID4gPiBhc3N1bWUgc28pLCBpbiBhdXRv LWJhbGxvb25pbmcgbW9kZSB3aXRob3V0IHNoYXJlZCBwYWdlIHRhYmxlcw0KPiA+ID4gbW9yZSBt ZW1vcnkgc2hvdWxkIGltbyBiZSBiYWxsb29uZWQgb3V0IG9mIERvbTAgbm93LiBJdCBoYXMNCj4g PiA+IGFsd2F5cyBiZWVuIGEgYnVnIHRoYXQgSU9NTVUgcGFnZSB0YWJsZXMgd2VyZW4ndCBhY2Nv dW50ZWQgZm9yLA0KPiA+ID4gYnV0IGl0IHdvdWxkIGJlY29tZSBldmVuIG1vcmUgcHJvbWluZW50 IHRoZW4uDQo+ID4NCj4gPiBVbHRpbWF0ZWx5LCBvbmNlIHRoZSB3aG9sZSBzZXJpZXMgaXMgYXBw bGllZCwgdGhlbiBub3RoaW5nIG11Y2ggc2hvdWxkIGNoYW5nZSBmb3IgdGhvc2Ugc3BlY2lmeWlu Zw0KPiA+IHBhc3N0aHJvdWdoIGgvdyBpbiBhbiB4bC5jZmcuIFRoZSBtYWluIGRpZmZlcmVuY2Ug d2lsbCBiZSB0aGF0IGgvdyBjYW5ub3QgYmUgcGFzc2VkIHRocm91Z2ggdG8gYQ0KPiA+IGRvbWFp biB0aGF0IHdhcyBub3Qgb3JpZ2luYWxseSBjcmVhdGVkIHdpdGggSU9NTVUgcGFnZXRhYmxlcy4N Cj4gPiBXaXRoIHBhdGNoZXMgYXBwbGllZCB1cCB0byB0aGlzIHBvaW50IHRoZW4sIHllcywgZXZl cnkgZG9tYWluIHdpbGwgZ2V0IElPTU1VIHBhZ2UgdGFibGVzLiBJIGd1ZXNzDQo+IEknbGwNCj4g PiB0YWtlIGEgbG9vayBhdCB0aGUgYXV0by1iYWxsb29uaW5nIGNvZGUgYW5kIHNlZSB3aGF0IG5l ZWRzIHRvIGJlIGRvbmUuDQo+ID4NCj4gDQo+IE9rLCBJJ3ZlIGhhZCBhIGxvb2suLi4NCj4gDQo+ IEkgY291bGQgbWFrZSBhIHJvdWdoIGNhbGN1bGF0aW9uIGluIGxpYnhsX2RvbWFpbl9uZWVkX21l bW9yeSgpIGJhc2VkIG9uIHRoZSBkb21haW4ncyBtYXhfbWVta2IgYW5kIGFuDQo+IGFzc3VtcHRp b24gb2YgYSA0IGxldmVsIHRyYW5zbGF0aW9uIHdpdGggNTEyIFBURXMgcGVyIGxldmVsLCBvciB3 b3VsZCBwcmVmZXIgc3VjaCBndWVzdGltYXRpb24gdG8gYmUNCj4gb3ZlcnJpZGFibGUgdXNpbmcg YW4geGwuY2ZnIHBhcmFtZXRlciBpbiBhIGJyb2FkbHkgc2ltaWxhciB3YXkgdG8gc2hhZG93X21l bWtiPw0KPiANCg0KSSB0aGluayBJJ20gZ29pbmcgdG8gc2F5IG5vIHRvIHRoaXMgYW55d2F5IHNp bmNlLCBhcyB5b3Ugc2F5LCB0aGUgb3ZlcmhlYWQgYXMgbmV2ZXIgYmVlbiBhY2NvdW50ZWQgZm9y IGFuZCBoYXZpbmcgdG8gbWFrZSBhc3N1bXB0aW9ucyBhYm91dCB0aGUgSU9NTVUgdGFibGUgc3Ry dWN0dXJlIGlzIG5vdCB2ZXJ5IGF0dHJhY3RpdmUuIEdpdmVuIHRoYXQgYW55IGlzc3VlIGlzIGdv aW5nIHRvIGJlIHRyYW5zaWVudCAoaS5lLiB1bnRpbCBwYXRjaCAjNiBpcyBjb21taXR0ZWQpIEkg ZG9uJ3QgdGhpbmsgZml4aW5nIGF1dG8tYmFsbG9vbmluZyBvdWdodCB0byBiZSBpbiBzY29wZSBm b3IgdGhpcyBzZXJpZXMuDQoNCiAgUGF1bA0KDQpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0 cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlz dGluZm8veGVuLWRldmVs