From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Williamson Subject: Re: [libvirt] Expose vfio device display/migration to libvirt and above, was Re: [PATCH 0/3] sample: vfio mdev display devices. Date: Fri, 4 May 2018 11:06:47 -0600 Message-ID: <20180504110647.0fc0c9d0@t450s.home> References: <20180418123153.0f4f037d@w520.home> <20180423154003.12c5467a@w520.home> <20180424165918.5c2ef037@w520.home> <0a1d6487-0dfb-2ffc-4774-ebaf65c15892@nvidia.com> <20180425120057.0fabb70e@w520.home> <20180425195229.GK2496@work-vm> <20180426185522.GQ2631@work-vm> <20180503125800.76cc7582@w520.home> <20180504091609.GB29999@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: Neo Jia , kvm@vger.kernel.org, Erik Skultety , libvirt , "Dr. David Alan Gilbert" , Tina Zhang , Kirti Wankhede , Gerd Hoffmann , Laine Stump , Jiri Denemark , intel-gvt-dev@lists.freedesktop.org To: "Daniel P. =?UTF-8?B?QmVycmFuZ8Op?=" Return-path: In-Reply-To: <20180504091609.GB29999@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com List-Id: kvm.vger.kernel.org T24gRnJpLCA0IE1heSAyMDE4IDEwOjE2OjA5ICswMTAwCkRhbmllbCBQLiBCZXJyYW5nw6kgPGJl cnJhbmdlQHJlZGhhdC5jb20+IHdyb3RlOgoKPiBPbiBUaHUsIE1heSAwMywgMjAxOCBhdCAxMjo1 ODowMFBNIC0wNjAwLCBBbGV4IFdpbGxpYW1zb24gd3JvdGU6Cj4gPiBIaSwKPiA+IAo+ID4gVGhl IHByZXZpb3VzIGRpc2N1c3Npb24gaGFzbid0IHByb2R1Y2VkIHJlc3VsdHMsIHNvIGxldCdzIHN0 YXJ0IG92ZXIuCj4gPiBIZXJlJ3MgdGhlIHNpdHVhdGlvbjoKPiA+IAo+ID4gIC0gV2UgY3VycmVu dGx5IGhhdmUga2VybmVsIGFuZCBRRU1VIHN1cHBvcnQgZm9yIHRoZSBRRU1VIHZmaW8tcGNpCj4g PiAgICBkaXNwbGF5IG9wdGlvbi4KPiA+IAo+ID4gIC0gVGhlIGRlZmF1bHQgZm9yIHRoaXMgb3B0 aW9uIGlzICdhdXRvJywgc28gdGhlIGRldmljZSB3aWxsIGF0dGVtcHQgdG8KPiA+ICAgIGdlbmVy YXRlIGEgZGlzcGxheSBpZiB0aGUgdW5kZXJseWluZyBkZXZpY2Ugc3VwcG9ydHMgaXQsIGN1cnJl bnRseQo+ID4gICAgb25seSBHVlRnIGFuZCBzb21lIGZ1dHVyZSByZWxlYXNlIG9mIE5WSURJQSB2 R1BVIChwbHVzIEdlcmQncwo+ID4gICAgc2FtcGxlIG1kcHkgYW5kIG1ib2NocykuCj4gPiAKPiA+ ICAtIFRoZSBkaXNwbGF5IG9wdGlvbiBpcyBpbXBsZW1lbnRlZCB2aWEgdHdvIGRpZmZlcmVudCBt ZWNoYW5pc20sIGEKPiA+ICAgIHZmaW8gcmVnaW9uIChOVklESUEsIG1kcHkpIG9yIGEgZG1hLWJ1 ZiAoR1ZUZywgbWJvY2hzKS4KPiA+IAo+ID4gIC0gRGlzcGxheXMgdXNpbmcgZG1hLWJ1ZiByZXF1 aXJlIE9wZW5HTCBzdXBwb3J0LCBkaXNwbGF5cyBtYWtpbmcKPiA+ICAgIHVzZSBvZiByZWdpb24g c3VwcG9ydCBkbyBub3QuCj4gPiAKPiA+ICAtIEVuYWJsaW5nIE9wZW5HTCBzdXBwb3J0IHJlcXVp cmVzIHNwZWNpZmljIFZNIGNvbmZpZ3VyYXRpb25zLCB3aGljaAo+ID4gICAgbGlidmlydCAvbWF5 LyB3YW50IHRvIGZhY2lsaXRhdGUuCj4gPiAKPiA+ICAtIFByb2JpbmcgZGlzcGxheSBzdXBwb3J0 IGZvciBhIGdpdmVuIGRldmljZSBpcyBjb21wbGljYXRlZCBieSB0aGUKPiA+ICAgIGZhY3QgdGhh dCBHVlRnIGFuZCBOVklESUEgYm90aCBpbXBvc2UgcmVxdWlyZW1lbnRzIG9uIHRoZSBwcm9jZXNz Cj4gPiAgICBvcGVuaW5nIHRoZSBkZXZpY2UgZmlsZSBkZXNjcmlwdG9yIHRocm91Z2ggdGhlIHZm aW8gQVBJOgo+ID4gCj4gPiAgICAtIEdWVGcgcmVxdWlyZXMgYSBLVk0gYXNzb2NpYXRpb24gb3Ig d2lsbCBmYWlsIHRvIGFsbG93IHRoZSBkZXZpY2UKPiA+ICAgICAgdG8gYmUgb3BlbmVkLgo+ID4g Cj4gPiAgICAtIE5WSURJQSByZXF1aXJlcyB0aGF0IHRoZWlyIHZncHUtbWFuYWdlciBwcm9jZXNz IGNhbiBsb2NhdGUgYSBVVUlECj4gPiAgICAgIGZvciB0aGUgVk0gdmlhIHRoZSBwcm9jZXNzIGNv bW1hbmRsaW5lLgo+ID4gCj4gPiAgICAtIFRoZXNlIGFyZSBib3RoIGhvcnJpYmxlIGltcG9zaXRp b25zIGFuZCBwcmV2ZW50IGxpYnZpcnQgZnJvbQo+ID4gICAgICBzaW1wbHkgcHJvYmluZyB0aGUg ZGV2aWNlIGl0c2VsZi4gIAo+IAo+IEFncmVlZCwgdGhlc2UgcmVxdWlyZW1lbnRzIGFyZSBqdXN0 IGhvcnJpZmljLiBQcm9iaW5nIGZvciBmZWF0dXJlcwo+IHNob3VsZCBub3QgcmVxdWlyZSB0aGlz IGtpbmQgb2YgbGV2ZWwgZW52aXJvbm1lbnRhbCBzZXR1cC4gSSBjYW4KPiBqdXN0IGFib3V0IHVu ZGVyc3RhbmQgJiBhY2NlcHQgaG93IHdlIGVuZGVkIHVwIGhlcmUsIGJlY2F1c2UgdGhpcwo+IHNj ZW5hcmlvIGlzIG5vdCBvbmUgdGhhdCB3YXMgc3Ryb25nbHkgY29uc2lkZXJlZCB3aGVuIHRoZSBm aXJzdCBpbXBscwo+IHdlcmUgYmVpbmcgZG9uZS4gSSBkb24ndCB0aGluayB3ZSBzaG91bGQgYWNj ZXB0IGl0IGFzIGEgbG9uZyB0ZXJtCj4gcmVxdWlyZW1lbnQgdGhvdWdoLgo+IAo+ID4gRXJpayBT a3VsdGV0eSwgd2hvIGluaXRpYWxseSByYWlzZWQgdGhlIGRpc3BsYXkgcXVlc3Rpb24sIGhhcyBp ZGVudGlmaWVkCj4gPiBvbmUgcG9zc2libGUgc29sdXRpb24sIHdoaWNoIGlzIHRvIHNpbXBseSBt YWtlIHRoZSBkaXNwbGF5IGNvbmZpZ3VyYXRpb24KPiA+IHRoZSB1c2VyJ3MgcHJvYmxlbSAoYXBv bG9naWVzIGlmIEkndmUgbWlzaW50ZXJwcmV0ZWQgRXJpaykuICBJIGJlbGlldmUKPiA+IHRoaXMg d291bGQgd29yayBzb21ldGhpbmcgbGlrZToKPiA+IAo+ID4gIC0gbGlidmlydCBpZGVudGlmaWVz IGEgdmVyc2lvbiBvZiBRRU1VIHRoYXQgaW5jbHVkZXMgJ2Rpc3BsYXknIHN1cHBvcnQKPiA+ICAg IGZvciB2ZmlvLXBjaSBkZXZpY2VzIGFuZCBkZWZhdWx0cyB0byBhZGRpbmcgZGlzcGxheT1vZmYg Zm9yIGV2ZXJ5Cj4gPiAgICB2ZmlvLXBjaSBkZXZpY2UgW2hhdmUgd2UgY2hvc2VuIHRoZSB3cm9u ZyBkZWZhdWx0IChhdXRvKSBpbiBRRU1VP10uCj4gPiAKPiA+ICAtIE5ldyBYTUwgc3VwcG9ydCB3 b3VsZCBhbGxvdyBhIHVzZXIgdG8gZW5hYmxlIGRpc3BsYXkgc3VwcG9ydCBvbiB0aGUKPiA+ICAg IHZmaW8gZGV2aWNlLgo+ID4gCj4gPiAgLSBSZXNvbHZpbmcgYW55IE9wZW5HTCBkZXBlbmRlbmNp ZXMgb2YgdGhhdCBjaGFuZ2Ugd291bGQgYmUgbGVmdCB0bwo+ID4gICAgdGhlIHVzZXIuCj4gPiAK PiA+IEEgbmljZSBhc3BlY3Qgb2YgdGhpcyBpcyB0aGF0IHBvbGljeSBkZWNpc2lvbnMgYXJlIGxl ZnQgdG8gdGhlIHVzZXIgYW5kCj4gPiBjbGVhcmx5IG5vIGludGVyZmFjZSBjaGFuZ2VzIGFyZSBu ZWNlc3NhcnksIHBlcmhhcHMgd2l0aCB0aGUgZXhjZXB0aW9uCj4gPiBvZiBkZWNpZGluZyB3aGV0 aGVyIHdlJ3ZlIG1hZGUgdGhlIHdyb25nIGRlZmF1bHQgY2hvaWNlIGZvciB2ZmlvLXBjaQo+ID4g ZGV2aWNlcyBpbiBRRU1VLiAgCj4gCj4gVW5sZXNzIEknbSBtaXMtdW5kZXJzdGFuZGluZyB0aGlz IGlzbid0IHJlYWxseSBhIHNvbHV0aW9uIHRvIHRoZQo+IHByb2JsZW0sIHJhdGhlciBpdCBpcyB1 cyBzaW1wbHkgZ2l2aW5nIHVwIGFuZCB0ZWxsaW5nIHNvbWVvbmUgZWxzZQo+IHRvIHRyeSB0byBm aXggdGhlIHByb2JsZW0uIFRoZSAndXNlcicgaGVyZSBpcyBub3QgYSBodW1hbiAtIGl0IGlzCj4g c2ltcGx5IHRoZSBuZXh0IGxldmVsIHVwIGluIHRoZSBtZ210IHN0YWNrLCBlZyBPcGVuU3RhY2sg b3Igb1ZpcnQuCj4gSWYgd2UgY2FuJ3Qgc29sdmUgaXQgYWNjZXB0YWJseSBpbiBsaWJ2aXJ0IGNv ZGUsIEkgZG9uJ3QgaGF2ZSBtdWNoCj4gaG9wZSB0aGF0IE9wZW5TdGFjayBjYW4gc29sdmUgaXQg aW4gdGhlaXIgY29kZSwgc2luY2UgdGhleSBoYXZlCj4gZXZlbiBzdHJvbmdlciBuZWVkIHRvIGF1 dG9tYXRlIGV2ZXJ5dGhpbmcuCgpCdXQgdG8gc29sdmUgdGhpcyBhdCBhbnkgbGV2ZWwgb3RoZXIg dGhhbiB0aGUgdXNlciBzdWdnZXN0cyB0aGVyZSBpcwpvbmUgInJpZ2h0IiBhbnN3ZXIgdG8gYXV0 b21hdGljYWxseSBjb25maWd1cmluZyB0aGUgZGV2aWNlLiAgSXMgdGhlcmU/CklmIGEgZGV2aWNl IHN1cHBvcnRzIGEgZGlzcGxheSwgZG9lcyB0aGUgdXNlciBuZWNlc3NhcmlseSB3YW50IHRvCmVu YWJsZSBpdD8gIElmIHRoZXJlJ3MgYSBkaWZmZXJlbmNlIGJldHdlZW4gZW5hYmxpbmcgYSBkaXNw bGF5IGZvciBhCmxvY2FsIHVzZXIgb3IgYSByZW1vdGUgdXNlciwgaXMgdGhlcmUgYW55IHJlYXNv bmFibGUgZXhwZWN0YXRpb24gdGhhdAp3ZSBjYW4gYXV0b21hdGljYWxseSBtYWtlIHRoYXQgZGV0 ZXJtaW5hdGlvbj8KCj4gPiBPbiB0aGUgb3RoZXIgaGFuZCwgaWYgd2UgZG8gd2FudCB0byBnaXZl IGxpYnZpcnQgYSBtZWNoYW5pc20gdG8gcHJvYmUKPiA+IHRoZSBkaXNwbGF5IHN1cHBvcnQgZm9y IGEgZGV2aWNlLCB3ZSBjYW4gbWFrZSBhIHNpbXBsaWZpZWQgUUVNVQo+ID4gaW5zdGFuY2UgYmUg dGhlIG1lY2hhbmlzbSB0aHJvdWdoIHdoaWNoIHdlIGRvIHRoYXQuICBGb3IgZXhhbXBsZSB0aGUK PiA+IHNjcmlwdFsxXSBjYW4gYmUgcHJvdmlkZWQgd2l0aCBlaXRoZXIgYSBQQ0kgZGV2aWNlIG9y IHN5c2ZzIHBhdGggdG8gYW4KPiA+IG1kZXYgZGV2aWNlIGFuZCBydW4gYSBtaW5pbWFsIFZNIGlu c3RhbmNlIG1lZXRpbmcgdGhlIHJlcXVpcmVtZW50cyBvZgo+ID4gYm90aCBHVlRnIGFuZCBOVklE SUEgdG8gcmVwb3J0IHRoZSBkaXNwbGF5IHN1cHBvcnQgYW5kIEdMIHJlcXVpcmVtZW50cwo+ID4g Zm9yIGEgZGV2aWNlLiAgVGhlcmUgYXJlIGNsZWFybHkgc29tZSB1bnJlZmluZWQgYW5kIGF0cm9j aW91cyBiaXRzIG9mCj4gPiB0aGlzIHNjcmlwdCwgYnV0IGl0J3Mgb25seSBhIHByb29mIG9mIGNv bmNlcHQsIHRoZSBwcm9jZXNzIG1hbmFnZW1lbnQKPiA+IGNhbiBiZSBpbXByb3ZlZCBhbmQgd2Ug Y2FuIGRlY2lkZSB3aGV0aGVyIHdlIHdhbnQgdG8gcHJvdmlkZSBxbXAKPiA+IG1lY2hhbmlzbSB0 byBpbnRyb3NwZWN0IHRoZSBkZXZpY2UgcmF0aGVyIHRoYW4gZ3JlcCdpbmcgZXJyb3IKPiA+IG1l c3NhZ2VzLiAgVGhlIGdvYWwgaXMgc2ltcGx5IHRvIHNob3cgdGhhdCB3ZSBjb3VsZCBjaG9vc2Ug dG8gZW1icmFjZQo+ID4gUUVNVSBhbmQgdXNlIGl0IG5vdCBhcyBhIFZNLCBidXQgc2ltcGx5IGEg dG9vbCBmb3IgcG9raW5nIGF0IGEgZGV2aWNlCj4gPiBnaXZlbiB0aGUgcmVzdHJpY3Rpb25zIHRo ZSBtZGV2IHZlbmRvciBkcml2ZXJzIGhhdmUgYWxyZWFkeSBpbXBvc2VkLiAgCj4gCj4gRmVlbHMg bGlrZSBhIHByZXR0eSBoZWF2eSB3ZWlnaHQgc29sdXRpb24sIHRoYXQganVzdCBlbmNvdXJhZ2Vz IHRoZQo+IGRyaXZlcnMgdG8gY29udGludWUgZG93biB0aGUgdW5kZXNpcmFibGUgcGF0aCB0aGV5 J3JlIGFscmVhZHkgb24sCj4gcG9zc2libHkgbWFraW5nIHRoZSBzaXR1YXRpb24gZXZlbiB3b3Jz ZSBvdmVyIHRpbWUuCgpJJ20gbm90IGdldHRpbmcgdGhlIGltcHJlc3Npb24gdGhhdCB0aGUgdmVu ZG9yIGRyaXZlcnMgYXJlIGNvbnNpZGVyaW5nCmEgY2hhbmdlLCBvciBuZWNlc3NhcmlseSBjYW4g Y2hhbmdlLiAgVGhlIE5WSURJQSBVVUlEIHJlcXVpcmVtZW50CmNlcnRhaW5seSBzZWVtcyBhcmJp dHJhcnksIGJ1dCBwYWdlIHRyYWNraW5nIHZpYSBLVk0gc2VlbXMgdG8gYmUgbW9yZQpkaXJlY3Rs eSB1c2VmdWwgdG8gbWFpbnRhaW5pbmcgdGhlIGFkZHJlc3Mgc3BhY2Ugb2YgdGhlIGRldmljZSBy ZWxhdGl2ZQp0byB0aGUgVk0sIGV2ZW4gaWYgaXQgcmVhbGx5IHdhc24ndCB0aGUgaW50ZW50IG9m IHRoZSBtZGV2IGludGVyZmFjZS4KUGVyaGFwcyB3ZSBjb3VsZCBpbnRyb2R1Y2UgdmZpbyBpbnRl cmZhY2VzIHRvIHJlcGxhY2UgdGhpcywgYnV0IGlzIHRoYXQKanVzdCBhZGRpbmcgYW4gdW5uZWNl c3NhcnkgbGF5ZXIgb2YgaW50ZXJhY3Rpb24gZm9yIGFsbCBidXQgdGhpcyBwcm9iZQphY3Rpdml0 eS4gIE1heWJlIHRoZSBLVk0gaW50ZXJmYWNlIHNob3VsZCBuZXZlciBoYXZlIGJlZW4gYWRkZWQs IGJ1dApnaXZlbiB0aGF0IGl0IGV4aXN0cywgZG9lcyBpdCBtYWtlIHNlbnNlIHRvIHNheSB0aGF0 IGl0IGNhbid0IGJlIHVzZWQsCm9yIHJlcXVpcmVkPyAgVGhhbmtzLAoKQWxleAoKLS0KbGlidmly LWxpc3QgbWFpbGluZyBsaXN0CmxpYnZpci1saXN0QHJlZGhhdC5jb20KaHR0cHM6Ly93d3cucmVk aGF0LmNvbS9tYWlsbWFuL2xpc3RpbmZvL2xpYnZpci1saXN0