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[79.34.249.199]) by smtp.gmail.com with ESMTPSA id m20sm4958538edj.43.2021.01.29.07.04.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Jan 2021 07:04:01 -0800 (PST) Date: Fri, 29 Jan 2021 16:03:59 +0100 From: Stefano Garzarella To: Jason Wang , Xie Yongji Subject: Re: [RFC v3 03/11] vdpa: Remove the restriction that only supports virtio-net devices Message-ID: <20210129150359.caitcskrfhqed73z@steredhat> References: <20210119045920.447-1-xieyongji@bytedance.com> <20210119045920.447-4-xieyongji@bytedance.com> <310d7793-e4ff-fba3-f358-418cb64c7988@redhat.com> <20210120110832.oijcmywq7pf7psg3@steredhat> <1979cffc-240e-a9f9-b0ab-84a1f82ac81e@redhat.com> <20210127085728.j6x5yzrldp2wp55c@steredhat> <3cb239f5-fdd5-8311-35a0-c0f50b552521@redhat.com> MIME-Version: 1.0 In-Reply-To: <3cb239f5-fdd5-8311-35a0-c0f50b552521@redhat.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=sgarzare@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Cc: axboe@kernel.dk, corbet@lwn.net, kvm@vger.kernel.org, mst@redhat.com, linux-aio@kvack.org, netdev@vger.kernel.org, rdunlap@infradead.org, willy@infradead.org, virtualization@lists.linux-foundation.org, hch@infradead.org, bob.liu@oracle.com, bcrl@kvack.org, viro@zeniv.linux.org.uk, stefanha@redhat.com, linux-fsdevel@vger.kernel.org X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" T24gVGh1LCBKYW4gMjgsIDIwMjEgYXQgMTE6MTE6NDlBTSArMDgwMCwgSmFzb24gV2FuZyB3cm90 ZToKPgo+T24gMjAyMS8xLzI3IOS4i+WNiDQ6NTcsIFN0ZWZhbm8gR2FyemFyZWxsYSB3cm90ZToK Pj5PbiBXZWQsIEphbiAyNywgMjAyMSBhdCAxMTozMzowM0FNICswODAwLCBKYXNvbiBXYW5nIHdy b3RlOgo+Pj4KPj4+T24gMjAyMS8xLzIwIOS4i+WNiDc6MDgsIFN0ZWZhbm8gR2FyemFyZWxsYSB3 cm90ZToKPj4+Pk9uIFdlZCwgSmFuIDIwLCAyMDIxIGF0IDExOjQ2OjM4QU0gKzA4MDAsIEphc29u IFdhbmcgd3JvdGU6Cj4+Pj4+Cj4+Pj4+T24gMjAyMS8xLzE5IOS4i+WNiDEyOjU5LCBYaWUgWW9u Z2ppIHdyb3RlOgo+Pj4+Pj5XaXRoIFZEVVNFLCB3ZSBzaG91bGQgYmUgYWJsZSB0byBzdXBwb3J0 IGFsbCBraW5kcyBvZiB2aXJ0aW8gZGV2aWNlcy4KPj4+Pj4+Cj4+Pj4+PlNpZ25lZC1vZmYtYnk6 IFhpZSBZb25namkgPHhpZXlvbmdqaUBieXRlZGFuY2UuY29tPgo+Pj4+Pj4tLS0KPj4+Pj4+wqBk cml2ZXJzL3Zob3N0L3ZkcGEuYyB8IDI5ICsrKy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tCj4+ Pj4+PsKgMSBmaWxlIGNoYW5nZWQsIDMgaW5zZXJ0aW9ucygrKSwgMjYgZGVsZXRpb25zKC0pCj4+ Pj4+Pgo+Pj4+Pj5kaWZmIC0tZ2l0IGEvZHJpdmVycy92aG9zdC92ZHBhLmMgYi9kcml2ZXJzL3Zo b3N0L3ZkcGEuYwo+Pj4+Pj5pbmRleCAyOWVkNDE3M2YwNGUuLjQ0OGJlNzg3NWI2ZCAxMDA2NDQK Pj4+Pj4+LS0tIGEvZHJpdmVycy92aG9zdC92ZHBhLmMKPj4+Pj4+KysrIGIvZHJpdmVycy92aG9z dC92ZHBhLmMKPj4+Pj4+QEAgLTIyLDYgKzIyLDcgQEAKPj4+Pj4+wqAjaW5jbHVkZSA8bGludXgv bm9zcGVjLmg+Cj4+Pj4+PsKgI2luY2x1ZGUgPGxpbnV4L3Zob3N0Lmg+Cj4+Pj4+PsKgI2luY2x1 ZGUgPGxpbnV4L3ZpcnRpb19uZXQuaD4KPj4+Pj4+KyNpbmNsdWRlIDxsaW51eC92aXJ0aW9fYmxr Lmg+Cj4+Pj4+PsKgI2luY2x1ZGUgInZob3N0LmgiCj4+Pj4+PkBAIC0xODUsMjYgKzE4Niw2IEBA IHN0YXRpYyBsb25nIAo+Pj4+Pj52aG9zdF92ZHBhX3NldF9zdGF0dXMoc3RydWN0IHZob3N0X3Zk cGEgKnYsIHU4IF9fdXNlciAKPj4+Pj4+KnN0YXR1c3ApCj4+Pj4+PsKgwqDCoMKgIHJldHVybiAw Owo+Pj4+Pj7CoH0KPj4+Pj4+LXN0YXRpYyBpbnQgdmhvc3RfdmRwYV9jb25maWdfdmFsaWRhdGUo c3RydWN0IHZob3N0X3ZkcGEgKnYsCj4+Pj4+Pi3CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqAgc3RydWN0IHZob3N0X3ZkcGFfY29uZmlnICpjKQo+Pj4+Pj4tewo+Pj4+ Pj4twqDCoMKgIGxvbmcgc2l6ZSA9IDA7Cj4+Pj4+Pi0KPj4+Pj4+LcKgwqDCoCBzd2l0Y2ggKHYt PnZpcnRpb19pZCkgewo+Pj4+Pj4twqDCoMKgIGNhc2UgVklSVElPX0lEX05FVDoKPj4+Pj4+LcKg wqDCoMKgwqDCoMKgIHNpemUgPSBzaXplb2Yoc3RydWN0IHZpcnRpb19uZXRfY29uZmlnKTsKPj4+ Pj4+LcKgwqDCoMKgwqDCoMKgIGJyZWFrOwo+Pj4+Pj4twqDCoMKgIH0KPj4+Pj4+LQo+Pj4+Pj4t wqDCoMKgIGlmIChjLT5sZW4gPT0gMCkKPj4+Pj4+LcKgwqDCoMKgwqDCoMKgIHJldHVybiAtRUlO VkFMOwo+Pj4+Pj4tCj4+Pj4+Pi3CoMKgwqAgaWYgKGMtPmxlbiA+IHNpemUgLSBjLT5vZmYpCj4+ Pj4+Pi3CoMKgwqDCoMKgwqDCoCByZXR1cm4gLUUyQklHOwo+Pj4+Pj4tCj4+Pj4+Pi3CoMKgwqAg cmV0dXJuIDA7Cj4+Pj4+Pi19Cj4+Pj4+Cj4+Pj4+Cj4+Pj4+SSB0aGluayB3ZSBzaG91bGQgdXNl IGEgc2VwYXJhdGUgcGF0Y2ggZm9yIHRoaXMuCj4+Pj4KPj4+PkZvciB0aGUgdmRwYS1ibGsgc2lt dWxhdG9yIEkgaGFkIHRoZSBzYW1lIGlzc3VlcyBhbmQgSSdtIGFkZGluZyAKPj4+PmEgLmdldF9j b25maWdfc2l6ZSgpIGNhbGxiYWNrIHRvIHZkcGEgZGV2aWNlcy4KPj4+Pgo+Pj4+RG8geW91IHRo aW5rIG1ha2Ugc2Vuc2Ugb3IgaXMgYmV0dGVyIHRvIHJlbW92ZSB0aGlzIGNoZWNrIGluIAo+Pj4+ dmhvc3QvdmRwYSwgZGVsZWdhdGluZyB0aGUgYm91bmRhcmllcyBjaGVja3MgdG8gCj4+Pj5nZXRf Y29uZmlnL3NldF9jb25maWcgY2FsbGJhY2tzLgo+Pj4KPj4+Cj4+PkEgcXVlc3Rpb24gaGVyZS4g SG93IG11Y2ggdmFsdWUgY291bGQgd2UgZ2FpbiBmcm9tIAo+Pj5nZXRfY29uZmlnX3NpemUoKSBj b25zaWRlciB3ZSBjYW4gbGV0IHZEUEEgcGFyZW50IHRvIHZhbGlkYXRlIHRoZSAKPj4+bGVuZ3Ro IGluIGl0cyBnZXRfY29uZmlnKCkuCj4+Pgo+Pgo+PkkgYWdyZWUsIG1vc3Qgb2YgdGhlIGltcGxl bWVudGF0aW9ucyBhbHJlYWR5IHZhbGlkYXRlIHRoZSBsZW5ndGgsIAo+PnRoZSBvbmx5IGdhaW4g aXMgYW4gZXJyb3IgcmV0dXJuZWQgc2luY2UgZ2V0X2NvbmZpZygpIGlzIHZvaWQsIGJ1dCAKPj5l dmVudHVhbGx5IHdlIGNhbiBhZGQgYSByZXR1cm4gdmFsdWUgdG8gaXQuCj4KPgo+UmlnaHQsIG9u ZSBwcm9ibGVtIGhlcmUgaXMgdGhhdC4gRm9yIHRoZSB2aXJpdG8gcGF0aCwgaXRzIGdldF9jb25m aWcoKSAKPnJldHVybnMgdm9pZC4gU28gd2UgY2FuIG5vdCBwcm9wYWdhdGUgZXJyb3IgdG8gdmly dGlvIGRyaXZlcnMuIEJ1dCBpdCAKPm1pZ2h0IG5vdCBiZSBhIGJpZyBpc3N1ZSBzaW5jZSB3ZSB0 cnVzdCBrZXJuZWwgdmlydGlvIGRyaXZlci4KPgo+U28gSSB0aGluayBpdCBtYWtlcyBzZW5zZSB0 byBjaGFuZ2UgdGhlIHJldHVybiB2YWx1ZSBpbiB0aGUgdmRwYSBjb25maWcgb3BzLgoKVGhhbmtz IGZvciB5b3VyIGZlZWRiYWNrIQoKQFhpZSBkbyB5b3UgcGxhbiB0byBkbyB0aGlzPwoKT3RoZXJ3 aXNlIEkgY2FuIGRvIGluIG15IHZkcGEtYmxrLXNpbSBzZXJpZXMsIHdoZXJlIGZvciBub3cgSSB1 c2VkIHRoaXMgCnBhdGNoIGFzIGlzLgoKVGhhbmtzLApTdGVmYW5vCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpWaXJ0dWFsaXphdGlvbiBtYWlsaW5nIGxp c3QKVmlydHVhbGl6YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0 cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vdmlydHVhbGl6YXRpb24=