From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48192) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aPH3Z-0008Af-7a for qemu-devel@nongnu.org; Fri, 29 Jan 2016 16:58:18 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aPH3V-0007zo-W5 for qemu-devel@nongnu.org; Fri, 29 Jan 2016 16:58:17 -0500 Received: from mga03.intel.com ([134.134.136.65]:23019) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aPH3V-0007zQ-MI for qemu-devel@nongnu.org; Fri, 29 Jan 2016 16:58:13 -0500 From: "Kay, Allen M" Date: Fri, 29 Jan 2016 21:58:11 +0000 Message-ID: <003AAFE53969E14CB1F09B6FD68C3CD47BB67D8B@ORSMSX106.amr.corp.intel.com> References: <1451994098-6972-1-git-send-email-kraxel@redhat.com> <1454009759.7183.7.camel@redhat.com> <003AAFE53969E14CB1F09B6FD68C3CD47BB669D2@ORSMSX106.amr.corp.intel.com> <1454036094.23148.9.camel@redhat.com> In-Reply-To: <1454036094.23148.9.camel@redhat.com> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Subject: Re: [Qemu-devel] [iGVT-g] [vfio-users] [PATCH v3 00/11] igd passthrough chipset tweaks List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alex Williamson , Gerd Hoffmann , "qemu-devel@nongnu.org" Cc: "igvt-g@ml01.01.org" , "xen-devel@lists.xensource.com" , Eduardo Habkost , Stefano Stabellini , Cao jin , "vfio-users@redhat.com" DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogQWxleCBXaWxsaWFtc29u IFttYWlsdG86YWxleC53aWxsaWFtc29uQHJlZGhhdC5jb21dDQo+IFNlbnQ6IFRodXJzZGF5LCBK YW51YXJ5IDI4LCAyMDE2IDY6NTUgUE0NCj4gVG86IEtheSwgQWxsZW4gTTsgR2VyZCBIb2ZmbWFu bjsgcWVtdS1kZXZlbEBub25nbnUub3JnDQo+IENjOiBpZ3Z0LWdAbWwwMS4wMS5vcmc7IHhlbi1k ZXZlbEBsaXN0cy54ZW5zb3VyY2UuY29tOyBFZHVhcmRvIEhhYmtvc3Q7DQo+IFN0ZWZhbm8gU3Rh YmVsbGluaTsgQ2FvIGppbjsgdmZpby11c2Vyc0ByZWRoYXQuY29tDQo+IFN1YmplY3Q6IFJlOiBb aUdWVC1nXSBbdmZpby11c2Vyc10gW1BBVENIIHYzIDAwLzExXSBpZ2QgcGFzc3Rocm91Z2ggY2hp cHNldA0KPiB0d2Vha3MNCj4gDQo+IE9uIEZyaSwgMjAxNi0wMS0yOSBhdCAwMjoyMiArMDAwMCwg S2F5LCBBbGxlbiBNIHdyb3RlOg0KPiA+DQo+ID4gPiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0t LQ0KPiA+ID4gRnJvbTogaUdWVC1nIFttYWlsdG86aWd2dC1nLWJvdW5jZXNAbGlzdHMuMDEub3Jn XSBPbiBCZWhhbGYgT2YgQWxleA0KPiA+ID4gV2lsbGlhbXNvbg0KPiA+ID4gU2VudDogVGh1cnNk YXksIEphbnVhcnkgMjgsIDIwMTYgMTE6MzYgQU0NCj4gPiA+IFRvOiBHZXJkIEhvZmZtYW5uOyBx ZW11LWRldmVsQG5vbmdudS5vcmcNCj4gPiA+IENjOiBpZ3Z0LWdAbWwwMS4wMS5vcmc7IHhlbi1k ZXZlbEBsaXN0cy54ZW5zb3VyY2UuY29tOyBFZHVhcmRvDQo+ID4gPiBIYWJrb3N0OyBTdGVmYW5v IFN0YWJlbGxpbmk7IENhbyBqaW47IHZmaW8tdXNlcnNAcmVkaGF0LmNvbQ0KPiA+ID4gU3ViamVj dDogUmU6IFtpR1ZULWddIFt2ZmlvLXVzZXJzXSBbUEFUQ0ggdjMgMDAvMTFdIGlnZCBwYXNzdGhy b3VnaA0KPiA+ID4gY2hpcHNldCB0d2Vha3MNCj4gPiA+DQo+ID4gPg0KPiA+ID4gMSkgVGhlIE9w UmVnaW9uIE1lbW9yeVJlZ2lvbiBpcyBtYXBwZWQgaW50byBzeXN0ZW1fbWVtb3J5DQo+IHRocm91 Z2gNCj4gPiA+IHByb2dyYW1taW5nIG9mIHRoZSAweEZDIGNvbmZpZyBzcGFjZSByZWdpc3Rlci4N Cj4gPiA+IMKgYSkgdmZpby1wY2kgY291bGQgcGljayBhbiBhZGRyZXNzIHRvIGRvIHRoaXMgYXMg aXQgaXMgcmVhbGl6ZWQuDQo+ID4gPiDCoGIpIFNlYUJJT1MvT1ZNRiBjb3VsZCBwcm9ncmFtIHRo aXMuDQo+ID4gPg0KPiA+ID4gRGlzY3Vzc2lvbjogMS5hKSBBdm9pZHMgYW55IEJJT1MgZGVwZW5k ZW5jeSwgYnV0IHZmaW8tcGNpIHdvdWxkIG5lZWQNCj4gPiA+IHRvIHBpY2sgYW4gYWRkcmVzcyBh bmQgbWFyayBpdCBhcyBlODIwIHJlc2VydmVkLsKgwqBJJ20gbm90IHN1cmUgaG93DQo+ID4gPiB0 byBwaWNrIHRoYXQgYWRkcmVzcy7CoMKgV2UnZCBwcm9iYWJseSB3YW50IHRvIG1ha2UgdGhlIDB4 RkMgY29uZmlnDQo+ID4gPiByZWdpc3RlciByZWFkLSBvbmx5LsKgwqAxLmIpIGhhcyB0aGUgaXNz dWUgeW91IG1lbnRpb25lZCB3aGVyZSBpbiBtb3N0DQo+ID4gPiBjYXNlcyB0aGUgT3BSZWdpb24g d2lsbCBiZSA4aywgYnV0IHRoZSBCSU9TIHdvbid0IGtub3cgaG93IG11Y2gNCj4gPiA+IGFkZHJl c3Mgc3BhY2UgaXQncyBtYXBwaW5nIGludG8gc3lzdGVtIG1lbW9yeSB3aGVuIGl0IHdyaXRlcyB0 aGUNCj4gPiA+IDB4RkMgcmVnaXN0ZXIuwqDCoEkgZG9uJ3Qga25vdyBob3cgbXVjaCBvZiBhIHBy b2JsZW0gdGhpcyBpcyBzaW5jZSB0aGUNCj4gPiA+IEJJT1MgY2FuIGVhc2lseSBkZXRlcm1pbmUg dGhlIHNpemUgb25jZSBtYXBwZWQgYW5kIHJlLW1hcCBpdA0KPiBzb21ld2hlcmUgdGhlcmUncyBz dWZmaWNpZW50IHNwYWNlLg0KPiA+ID4gUHJhY3RpY2FsbHksIGl0IHNlZW1zIGxpa2UgaXQncyBh bHdheXMgZ29pbmcgdG8gYmUgOEsuwqDCoFRoaXMgb2YNCj4gPiA+IGNvdXJzZSByZXF1aXJlcyBt b2RpZmljYXRpb24gdG8gZXZlcnkgQklPUy7CoMKgSXQgYWxzbyBsZWF2ZXMgdGhlIDB4RkMNCj4g PiA+IHJlZ2lzdGVyIGFzIGEgbWFwcGluZyBjb250cm9sIHJhdGhlciB0aGFuIGEgcG9pbnRlciB0 byB0aGUgT3BSZWdpb24NCj4gPiA+IGluIFJBTSwgd2hpY2ggZG9lc24ndCByZWFsbHkgbWF0Y2gg cmVhbCBoYXJkd2FyZS7CoMKgVGhlIEJJT1Mgd291bGQgbmVlZA0KPiB0byBwaWNrIGFuIGFkZHJl c3MgaW4gdGhpcyBjYXNlLg0KPiA+ID4NCj4gPiA+IDIpIFJlYWQtb25seSBtYXBwaW5ncyB2ZXJz aW9uIG9mIDEpDQo+ID4gPg0KPiA+ID4gRGlzY3Vzc2lvbjogUmVhbGx5IG5vdGhpbmcgY2hhbmdl cyBmcm9tIHRoZSBpc3N1ZXMgYWJvdmUsIGp1c3QNCj4gPiA+IHByZXZlbnRzIGFueSBwb3NzaWJp bGl0eSBvZiB0aGUgZ3Vlc3QgbW9kaWZ5aW5nIGFueXRoaW5nIGluIHRoZQ0KPiA+ID4gaG9zdC7C oMKgWGVuIGFwcGFyZW50bHkgYWxsb3dzIHdyaXRlIGFjY2VzcyB0byB0aGUgaG9zdCBwYWdlIGFs cmVhZHkuDQo+ID4gPg0KPiA+ID4gMykgQ29weSBPcFJlZ2lvbiBjb250ZW50cyBpbnRvIGJ1ZmZl ciBhbmQgZG8gZWl0aGVyIDEpIG9yIDIpIGFib3ZlLg0KPiA+ID4NCj4gPiA+IERpc2N1c3Npb246 IE5vIGJlbmVmaXQgdGhhdCBJIGNhbiBzZWUgb3ZlciBhYm92ZSBvdGhlciB0aGFuIG1heWJlDQo+ ID4gPiBhbGxvd2luZyB3cml0ZSBhY2Nlc3MgdGhhdCBkb2Vzbid0IGFmZmVjdCB0aGUgaG9zdC4N Cj4gPiA+DQo+ID4gPiA0KSBDb3B5IGNvbnRlbnRzIGludG8gYSBndWVzdCBSQU0gbG9jYXRpb24s IG1hcmsgaXQgcmVzZXJ2ZWQsIHBvaW50DQo+ID4gPiB0byBpdCB2aWEgMHhGQyBjb25maWcgYXMg c2NyYXRjaCByZWdpc3Rlci4NCj4gPiA+IMKgYSkgRG9uZSBieSBRRU1VICh2ZmlvLXBjaSkNCj4g PiA+IMKgYikgRG9uZSBieSBTZWFCSU9TL09WTUYNCj4gPiA+DQo+ID4gPiBEaXNjdXNzaW9uOiBU aGlzIGlzIHRoZSBtb3N0IGxpa2UgcmVhbCBoYXJkd2FyZS7CoMKgNC5hKSBoYXMgdGhlIHVzdWFs DQo+ID4gPiBpc3N1ZSBvZiBob3cgdG8gcGljayBhbiBhZGRyZXNzLCBidXQgdGhlIGJlbmVmaXQg b2Ygbm90IHJlcXVpcmluZw0KPiA+ID4gQklPUyBjaGFuZ2VzIChzaW1wbHkgbWFyayB0aGUgUkFN IHJlc2VydmVkIHZpYSBleGlzdGluZyBtZXRob2RzKS4NCj4gPiA+IDQuYikgd291bGQgcmVxdWly ZSBwYXNzaW5nIGEgYnVmZmVyIGNvbnRhaW5pbmcgdGhlIGNvbnRlbnRzIG9mIHRoZQ0KPiA+ID4g T3BSZWdpb24gdmlhIGZ3X2NmZyBhbmQgbGV0dGluZyB0aGUgQklPUyBkbyB0aGUgc2V0dXAuwqDC oFRoZSBsYXR0ZXINCj4gPiA+IG9mIGNvdXJzZSByZXF1aXJlcyBtb2RpZnlpbmcgZWFjaCBCSU9T IGZvciB0aGlzIHN1cHBvcnQuDQo+ID4gPg0KPiA+ID4gT2YgY291cnNlIG5vbmUgb2YgdGhlc2Ug c3VwcG9ydCBob3RwbHVnIG5vciByZWFsbHkgY2FuIHRoZXkgc2luY2UNCj4gPiA+IHJlc2VydmVk IG1lbW9yeSByZWdpb25zIGFyZSBub3QgZHluYW1pYyBpbiB0aGUgYXJjaGl0ZWN0dXJlLg0KPiA+ ID4NCj4gPiA+IEluIGFsbCBjYXNlcywgc29tZSBwaWVjZSBvZiBzb2Z0d2FyZSBuZWVkcyB0byBr bm93IHdoZXJlIGl0IGNhbg0KPiA+ID4gcGxhY2UgdGhlIE9wUmVnaW9uIGluIGd1ZXN0IG1lbW9y eS7CoMKgSXQgc2VlbXMgbGlrZSB0aGVyZSBhcmUNCj4gPiA+IGFkdmFudGFnZXMgb3IgZGlzYWR2 YW50YWdlcyB3aGV0aGVyIHRoYXQncyBkb25lIGJ5IFFFTVUgb3IgdGhlIEJJT1MsDQo+ID4gPiBi dXQgd2Ugb25seSBuZWVkIHRvIGRvIGl0IG9uY2UgaWYgaXQncyBRRU1VLsKgwqBTdWdnZXN0aW9u cywgY29tbWVudHMsDQo+IHByZWZlcmVuY2VzPw0KPiA+ID4NCj4gPg0KPiA+IEhpIEFsZXgsIGFu b3RoZXIgdGhpbmcgdG8gY29uc2lkZXIgaXMgaG93IHRvIGNvbW11bmljYXRlIHRvIHRoZSBndWVz dA0KPiA+IGRyaXZlciB0aGUgYWRkcmVzcyBhdCAweEZDIGNvbnRhaW5zIGEgdmFsaWQgR1BBIGFk ZHJlc3MgdGhhdCBjYW4gYmUNCj4gPiBhY2Nlc3NlZCBieSB0aGUgZHJpdmVyIHdpdGhvdXQgY2F1 c2luZyBhIEVQVCBmYXVsdCAtIHNpbmNlIHRoZSBzYW1lIGRyaXZlcg0KPiB3aWxsIGJlIHVzZWQg b24gb3RoZXIgaHlwZXJ2aXNvcnMgYW5kIHRoZXkgbWF5IG5vdCBFUFQgbWFwIE9wUmVnaW9uDQo+ IG1lbW9yeS7CoMKgT24gaWRlYSBwcm9wb3NlZCBieSBkaXNwbGF5IGRyaXZlciB0ZWFtIGlzIHRv IHNldCBiaXQwIG9mIHRoZQ0KPiBhZGRyZXNzIHRvIDEgZm9yIGluZGljYXRpbmcgT3BSZWdpb24g bWVtb3J5IGNhbiBiZSBzYWZlbHkgYWNjZXNzZWQgYnkgdGhlDQo+IGd1ZXN0IGRyaXZlci4NCj4g DQo+IEhpIEFsbGVuLA0KPiANCj4gV2h5IGlzIHRoYXQgYW55IGRpZmZlcmVudCB0aGFuIGEgZ3Vl c3QgYWNjZXNzaW5nIGFueSBvdGhlciBtZW1vcnkgYXJlYSB0aGF0DQo+IGl0IHNob3VsZG4ndD/C oMKgVGhlIE9wUmVnaW9uIHN0YXJ0cyB3aXRoIGEgMTYtYnl0ZSBJRCBzdHJpbmcsIHNvIGlmIHRo ZSBndWVzdA0KPiBmaW5kcyB0aGF0IGl0IHNob3VsZCBmZWVsIGZhaXJseSBjb25maWRlbnQgdGhl IE9wUmVnaW9uIGRhdGEgaXMgdmFsaWQuwqDCoFRoZQ0KPiBwdWJsaXNoZWQgc3BlYyBhbHNvIHNl ZW1zIHRvIGRlZmluZSBhbGwgYml0cyBvZiAweGZjIGFzIHZhbGlkLCBub3QgaW1wbHlpbmcgYW55 DQo+IHNvcnQgb2YgYWxpZ25tZW50IHJlcXVpcmVtZW50cywgYW5kIHRoZSBpOTE1IGRyaXZlciBk b2VzIGEgbWVtcmVtYXANCj4gZGlyZWN0bHkgb24gdGhlIHZhbHVlIHJlYWQgZnJvbSAweGZjLsKg wqBTbyBJJ20gbm90IHN1cmUgd2hldGhlciB0aGVyZSdzIHJlYWxseSBhDQo+IG5lZWQgdG8gb3Ig YWJpbGl0eSB0byBkZWZpbmUgYW55IG9mIHRob3NlIGJpdHMgaW4gYW4gYWRob2Mgd2F5IHRvIGlu ZGljYXRlDQo+IG1hcHBpbmcuwqDCoElmIHdlIGRvIHRoaW5ncyByaWdodCwgc2hvdWxkbid0IHRo ZSBndWVzdCBkcml2ZXIgbm90IGV2ZW4ga25vdyBpdCdzDQo+IHJ1bm5pbmcgaW4gYSBWTSwgYXQg bGVhc3QgZm9yIHRoZSBLVk1HVC1kIGNhc2UsIHNvIHdlIG5lZWQgdG8gYmUgY29tcGF0aWJsZQ0K PiB3aXRoIHBoeXNpY2FsIGhhcmR3YXJlLsKgwqBUaGFua3MsDQo+IA0KDQpGaXJzdCBvZiBhbGws IEkgd291bGQgbGlrZSB0byBjbGFyaWZ5IEknbSB0YWxraW5nIGFib3V0IGdlbmVyYWwgSUdEIHBh c3N0aHJvdWdoIGNhc2UgLSBub3Qgc3BlY2lmaWMgdG8gS1ZNR1QuICBJbiBJR0QgcGFzc3Rocm91 Z2ggY29uZmlndXJhdGlvbiwgb25lIG9mIHRoZSBmb2xsb3dpbmcgd2lsbCBoYXBwZW4gd2hlbiB0 aGUgZHJpdmVyIGFjY2Vzc2VzIE9wUmVnaW9uOg0KDQoxKSBJZiB0aGUgaHlwZXJ2aXNvciBzZXRz IHVwIE9wUmVnaW9uIEdQQS9IUEEgbWFwcGluZywgZWl0aGVyIGJ5IHByZS1tYXAgaXQgKGkuZS4g WGVuKSBvciBtYXAgaXQgZHVyaW5nIEVQVCBwYWdlIGZhdWx0IChpLmUuIEtWTSksIGd1ZXN0IGNh biBzdWNjZXNzZnVsbHkgcmVhZCB0aGUgY29udGVudCBvZiB0aGUgT3BSZWdpb24gYW5kIGNoZWNr IHRoZSBJRCBzdHJpbmcuICBJbiB0aGlzIGNhc2UsIGV2ZXJ5dGhpbmcgd29ya3MgZmluZS4NCg0K MikgaWYgdGhlIGh5cGVydmlzb3IgZG9lcyBub3Qgc2V0dXAgT3BSZWdpb24gR1BBL0hQQSBtYXBw aW5nIGF0IGFsbCwgdGhlbiBndWVzdCBkcml2ZXIncyBhdHRlbXB0IHRvIHNldHVwIEdWQS9HUEEg bWFwcGluZyB3aWxsIGZhaWwsIHdoaWNoIGNhdXNlcyB0aGUgZHJpdmVyIHRvIGZhaWwuICBJbiB0 aGlzIGNhc2UsIGd1ZXN0IGRyaXZlciB3b24ndCBoYXZlIHRoZSBvcHBvcnR1bml0eSB0byBsb29r IGludG8gdGhlIGNvbnRlbnQgb2YgT3BSZWdpb24gbWVtb3J5IGFuZCBjaGVjayB0aGUgSUQgc3Ry aW5nLg0KDQo+IEFsZXgNCg0K