From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: Re: [RFC] vhost: introduce mdev based hardware vhost backend Date: Fri, 20 Apr 2018 11:52:47 +0800 Message-ID: <060e2b5f-2e93-c53f-387b-5baaa33e87cd@redhat.com> References: <20180402152330.4158-1-tiwei.bie@intel.com> <622f4bd7-1249-5545-dc5a-5a92b64f5c26@redhat.com> <20180410045723.rftsb7l4l3ip2ioi@debian> <30a63fff-7599-640a-361f-a27e5783012a@redhat.com> <20180419212911-mutt-send-email-mst@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20180419212911-mutt-send-email-mst@kernel.org> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: "Michael S. Tsirkin" Cc: alexander.h.duyck@intel.com, virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, xiao.w.wang@intel.com, ddutile@redhat.com, jianfeng.tan@intel.com, zhihong.wang@intel.com List-Id: virtualization@lists.linuxfoundation.org CgpPbiAyMDE45bm0MDTmnIgyMOaXpSAwMjo0MCwgTWljaGFlbCBTLiBUc2lya2luIHdyb3RlOgo+ IE9uIFR1ZSwgQXByIDEwLCAyMDE4IGF0IDAzOjI1OjQ1UE0gKzA4MDAsIEphc29uIFdhbmcgd3Jv dGU6Cj4+Pj4+IE9uZSBwcm9ibGVtIGlzIHRoYXQsIGRpZmZlcmVudCB2aXJ0aW8gcmluZyBjb21w YXRpYmxlIGRldmljZXMKPj4+Pj4gbWF5IGhhdmUgZGlmZmVyZW50IGRldmljZSBpbnRlcmZhY2Vz LiBUaGF0IGlzIHRvIHNheSwgd2Ugd2lsbAo+Pj4+PiBuZWVkIGRpZmZlcmVudCBkcml2ZXJzIGlu IFFFTVUuIEl0IGNvdWxkIGJlIHRyb3VibGVzb21lLiBBbmQKPj4+Pj4gdGhhdCdzIHdoYXQgdGhp cyBwYXRjaCB0cnlpbmcgdG8gZml4LiBUaGUgaWRlYSBiZWhpbmQgdGhpcwo+Pj4+PiBwYXRjaCBp cyB2ZXJ5IHNpbXBsZTogbWRldiBpcyBhIHN0YW5kYXJkIHdheSB0byBlbXVsYXRlIGRldmljZQo+ Pj4+PiBpbiBrZXJuZWwuCj4+Pj4gU28geW91IGp1c3QgbW92ZSB0aGUgYWJzdHJhY3Rpb24gbGF5 ZXIgZnJvbSBxZW11IHRvIGtlcm5lbCwgYW5kIHlvdSBzdGlsbAo+Pj4+IG5lZWQgZGlmZmVyZW50 IGRyaXZlcnMgaW4ga2VybmVsIGZvciBkaWZmZXJlbnQgZGV2aWNlIGludGVyZmFjZXMgb2YKPj4+ PiBhY2NlbGVyYXRvcnMuIFRoaXMgbG9va3MgZXZlbiBtb3JlIGNvbXBsZXggdGhhbiBsZWF2aW5n IGl0IGluIHFlbXUuIEFzIHlvdQo+Pj4+IHNhaWQsIGFub3RoZXIgaWRlYSBpcyB0byBpbXBsZW1l bnQgdXNlcnNwYWNlIHZob3N0IGJhY2tlbmQgZm9yIGFjY2VsZXJhdG9ycwo+Pj4+IHdoaWNoIHNl ZW1zIGVhc2llciBhbmQgY291bGQgY28td29yayB3aXRoIG90aGVyIHBhcnRzIG9mIHFlbXUgd2l0 aG91dAo+Pj4+IGludmVudGluZyBuZXcgdHlwZSBvZiBtZXNzYWdlcy4KPj4+IEknbSBub3QgcXVp dGUgc3VyZS4gRG8geW91IHRoaW5rIGl0J3MgYWNjZXB0YWJsZSB0bwo+Pj4gYWRkIHZhcmlvdXMg dmVuZG9yIHNwZWNpZmljIGhhcmR3YXJlIGRyaXZlcnMgaW4gUUVNVT8KPj4+Cj4+IEkgZG9uJ3Qg b2JqZWN0IGJ1dCB3ZSBuZWVkIHRvIGZpZ3VyZSBvdXQgdGhlIGFkdmFudGFnZXMgb2YgZG9pbmcg aXQgaW4gcWVtdQo+PiB0b28uCj4+Cj4+IFRoYW5rcwo+IFRvIGJlIGZyYW5rIGtlcm5lbCBpcyBl eGFjdGx5IHdoZXJlIGRldmljZSBkcml2ZXJzIGJlbG9uZy4gIERQREsgZGlkCj4gbW92ZSB0aGVt IHRvIHVzZXJzcGFjZSBidXQgdGhhdCdzIG1lcmVseSBhIHJlcXVpcmVtZW50IGZvciBkYXRhIHBh dGguCj4gKklmKiB5b3UgY2FuIGhhdmUgdGhlbSBpbiBrZXJuZWwgdGhhdCBpcyBiZXN0Ogo+IC0g dXBkYXRlIGtlcm5lbCBhbmQgdGhlcmUncyBubyBuZWVkIHRvIHJlYnVpbGQgdXNlcnNwYWNlCgpX ZWxsLCB5b3Ugc3RpbGwgbmVlZCB0byByZWJ1aWxkIHVzZXJzcGFjZSBzaW5jZSBhIG5ldyB2aG9z dCBiYWNrZW5kIGlzIApyZXF1aXJlZCB3aGljaCByZWxpZXMgdmhvc3QgcHJvdG9jb2wgdGhyb3Vn aCBtZGV2IEFQSS4gQW5kIEkgYmVsaWV2ZSAKdXBncmFkaW5nIHVzZXJzcGFjZSBwYWNrYWdlIGlz IGNvbnNpZGVyZWQgdG8gYmUgbW9yZSBsaWdodHdlaWdodCB0aGFuIAp1cGdyYWRpbmcga2VybmVs LiBXaXRoIG1kZXYsIHdlJ3JlIGxpa2VseSB0byByZXBlYXQgdGhlIHN0b3J5IG9mIHZob3N0IApB UEksIGRlYWxpbmcgd2l0aCBmZWF0dXJlcy92ZXJzaW9ucyBhbmQgaW52ZW50aW5nIG5ldyBBUEkg ZW5kbGVzcyBmb3IgCm5ldyBmZWF0dXJlcy4gQW5kIHlvdSB3aWxsIHN0aWxsIG5lZWQgdG8gcmVi dWlsZCB0aGUgdXNlcnNwYWNlLgoKPiAtIGFwcHMgY2FuIGJlIHdyaXR0ZW4gaW4gYW55IGxhbmd1 YWdlIG5vIG5lZWQgdG8gbWFpbnRhaW4gbXVsdGlwbGUKPiAgICBsaWJyYXJpZXMgb3IgYWRkIHdy YXBwZXJzCgpUaGlzIGlzIG5vdCBhIGJpZyBpc3N1ZSBjb25zaWRlciBJdCdzIG5vdCBhIGdlbmVy aWMgbmV0d29yayBkcml2ZXIgYnV0IGEgCm1kZXYgZHJpdmVyLCB0aGUgb25seSBwb3NzaWJsZSB1 c2VyIGlzIFZNLgoKPiAtIHNlY3VyaXR5IGNvbmNlcm5zIGFyZSBtdWNoIHNtYWxsZXIgKG9rIHBl b3BsZSBhcmUgdHJ5aW5nIHRvCj4gICAgcmFpc2UgdGhlIGJhciB3aXRoIElPTU1VcyBhbmQgc3Vj aCwgYnV0IGl0J3MgYWxyZWFkeSBwcmV0dHkKPiAgICBnb29kIGV2ZW4gd2l0aG91dCkKCldlbGws IEkgdGhpbmsgbm90LCBrZXJuZWwgYnVncyBhcmUgbXVjaCBtb3JlIHNlcmlvdXMgdGhhbiB1c2Vy c3BhY2UgCm9uZXMuIEFuZCBJIGJlZyB0aGUga2VybmVsIGRyaXZlciBpdHNlbGYgd29uJ3QgYmUg c21hbGwuCgo+Cj4gVGhlIGJpZ2dlc3QgaXNzdWUgaXMgdGhhdCB5b3UgbGV0IHVzZXJzcGFjZSBw b2tlIGF0IHRoZQo+IGRldmljZSB3aGljaCBpcyBhbHNvIGFsbG93ZWQgYnkgdGhlIElPTU1VIHRv IHBva2UgYXQKPiBrZXJuZWwgbWVtb3J5IChuZWVkZWQgZm9yIGtlcm5lbCBkcml2ZXIgdG8gd29y aykuCgpJIGRvbid0IHF1aXRlIGdldC4gVGhlIHVzZXJzcGFjZSBkcml2ZXIgY291bGQgYmUgYnVp bHQgb24gdG9wIG9mIFZGSU8gCmZvciBzdXJlLiBTbyBrZXJuZWwgbWVtb3J5IHdlcmUgcGVyZmVj dGx5IGlzb2xhdGVkIGluIHRoaXMgY2FzZS4KCj4KPiBZZXMsIG1heWJlIGlmIGRldmljZSBpcyBu b3QgYnVnZ3kgaXQncyBhbGwgZmluZSwgYnV0Cj4gaXQncyBiZXR0ZXIgaWYgd2UgZG8gbm90IGhh dmUgdG8gdHJ1c3QgdGhlIGRldmljZQo+IG90aGVyd2lzZSB0aGUgc2VjdXJpdHkgcGljdHVyZSBi ZWNvbWVzIG1vcmUgbXVya3kuCj4KPiBJIHN1Z2dlc3RlZCBhdHRhY2hpbmcgYSBQQVNJRCB0byAo c29tZSkgcXVldWVzIC0gc2VlIG15IG9sZCBwb3N0ICJ1c2luZwo+IFBBU0lEcyB0byBlbmFibGUg YSBzYWZlIHZhcmlhbnQgb2YgZGlyZWN0IHJpbmcgYWNjZXNzIi4KPgo+IFRoZW4gdXNpbmcgSU9N TVUgd2l0aCBWRklPIHRvIGxpbWl0IGFjY2VzcyB0aHJvdWdoIHF1ZXVlIHRvIGNvcnJlbnQKPiBy YW5nZXMgb2YgbWVtb3J5LgoKV2VsbCB1c2Vyc3BhY2UgZHJpdmVyIGNvdWxkIGJlbmVmaXQgZnJv bSB0aGlzIHRvby4gQW5kIHdlIGNhbiBldmVuIGdvIApmdXJ0aGVyIGJ5IHVzaW5nIG5lc3RlZCBJ TyBwYWdlIHRhYmxlcyB0byBzaGFyZSBJT1ZBIGFkZHJlc3Mgc3BhY2UgCmJldHdlZW4gZGV2aWNl cyBhbmQgYSBWTS4KClRoYW5rcwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18KVmlydHVhbGl6YXRpb24gbWFpbGluZyBsaXN0ClZpcnR1YWxpemF0aW9uQGxp c3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL3ZpcnR1YWxpemF0aW9u