From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E336BC61DD8 for ; Mon, 16 Nov 2020 04:21:52 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4E187206D8 for ; Mon, 16 Nov 2020 04:21:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="XEp32Bem" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E187206D8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=virtualization-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 0540B868B0; Mon, 16 Nov 2020 04:21:52 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ngLQp1vBfb88; Mon, 16 Nov 2020 04:21:51 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id 5686A868A9; Mon, 16 Nov 2020 04:21:51 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3F392C0891; Mon, 16 Nov 2020 04:21:51 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id DCF8FC07FF for ; Mon, 16 Nov 2020 04:21:49 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 939AC2041E for ; Mon, 16 Nov 2020 04:21:49 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qOTgPqIkKgzP for ; Mon, 16 Nov 2020 04:21:48 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by silver.osuosl.org (Postfix) with ESMTPS id 750E5203C7 for ; Mon, 16 Nov 2020 04:21:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605500506; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jrOtbnB72prq10/Mp21JWfqhwYU9mLgYj1aTjQoBku4=; b=XEp32Bemu7d+UpUqHXJYcQQLZM9CRJyoqLWHXyjZ/cQNNC/kwI5CgoP7GGBwnDL9wtD3uB 0Aaee+rALzj5r398o2tKIHswykons81N54FaD71xrbwi9GFzRfkJKHJvyQf0WpE0iUgWev PFUnG19Gv/fqUtbYpP5rnbH8lneh3fM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-537-2tUIL-GPMayRVNkL3_HVdw-1; Sun, 15 Nov 2020 23:21:44 -0500 X-MC-Unique: 2tUIL-GPMayRVNkL3_HVdw-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8840B427FE; Mon, 16 Nov 2020 04:21:43 +0000 (UTC) Received: from [10.72.13.126] (ovpn-13-126.pek2.redhat.com [10.72.13.126]) by smtp.corp.redhat.com (Postfix) with ESMTP id A3E3C60C43; Mon, 16 Nov 2020 04:21:34 +0000 (UTC) Subject: Re: [PATCH RFC 10/12] vdpa_sim: split vdpasim_virtqueue's iov field in riov and wiov To: Stefano Garzarella , virtualization@lists.linux-foundation.org References: <20201113134712.69744-1-sgarzare@redhat.com> <20201113134712.69744-11-sgarzare@redhat.com> From: Jason Wang Message-ID: Date: Mon, 16 Nov 2020 12:21:33 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201113134712.69744-11-sgarzare@redhat.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Cc: Laurent Vivier , Max Gurtovoy , "Michael S. Tsirkin" , linux-kernel@vger.kernel.org, Stefan Hajnoczi , Eli Cohen 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" Ck9uIDIwMjAvMTEvMTMg5LiL5Y2IOTo0NywgU3RlZmFubyBHYXJ6YXJlbGxhIHdyb3RlOgo+IHZy aW5naF9nZXRkZXNjX2lvdGxiKCkgbWFuYWdlcyAyIGlvdnMgZm9yIHdyaXRhYmxlIGFuZCByZWFk YWJsZQo+IGRlc2NyaXB0b3JzLiBUaGlzIGlzIHZlcnkgdXNlZnVsIGZvciB0aGUgYmxvY2sgZGV2 aWNlLCB3aGVyZSBmb3IKPiBlYWNoIHJlcXVlc3Qgd2UgaGF2ZSBib3RoIHR5cGVzIG9mIGRlc2Ny aXB0b3IuCj4KPiBMZXQncyBzcGxpdCB0aGUgdmRwYXNpbV92aXJ0cXVldWUncyBpb3YgZmllbGQg aW4gcmlvdiBhbmQgd2lvdgo+IHRvIHVzZSB0aGVtIHdpdGggdnJpbmdoX2dldGRlc2NfaW90bGIo KS4KPgo+IFNpZ25lZC1vZmYtYnk6IFN0ZWZhbm8gR2FyemFyZWxsYSA8c2dhcnphcmVAcmVkaGF0 LmNvbT4KCgpBY2tlZC1ieTogSmFzb24gV2FuZyA8amFzb3dhbmdAcmVkaGF0LmNvbT4KCgo+IC0t LQo+ICAgZHJpdmVycy92ZHBhL3ZkcGFfc2ltL3ZkcGFfc2ltLmggICAgIHwgMyArKy0KPiAgIGRy aXZlcnMvdmRwYS92ZHBhX3NpbS92ZHBhX3NpbV9ibGsuYyB8IDYgKysrLS0tCj4gICBkcml2ZXJz L3ZkcGEvdmRwYV9zaW0vdmRwYV9zaW1fbmV0LmMgfCA4ICsrKystLS0tCj4gICAzIGZpbGVzIGNo YW5nZWQsIDkgaW5zZXJ0aW9ucygrKSwgOCBkZWxldGlvbnMoLSkKPgo+IGRpZmYgLS1naXQgYS9k cml2ZXJzL3ZkcGEvdmRwYV9zaW0vdmRwYV9zaW0uaCBiL2RyaXZlcnMvdmRwYS92ZHBhX3NpbS92 ZHBhX3NpbS5oCj4gaW5kZXggY2MyMWUwN2FhMmY3Li4wZDQ2Mjk2NzVlNGIgMTAwNjQ0Cj4gLS0t IGEvZHJpdmVycy92ZHBhL3ZkcGFfc2ltL3ZkcGFfc2ltLmgKPiArKysgYi9kcml2ZXJzL3ZkcGEv dmRwYV9zaW0vdmRwYV9zaW0uaAo+IEBAIC0yNyw3ICsyNyw4IEBAIHN0cnVjdCB2ZHBhc2ltOwo+ ICAgCj4gICBzdHJ1Y3QgdmRwYXNpbV92aXJ0cXVldWUgewo+ICAgCXN0cnVjdCB2cmluZ2ggdnJp bmc7Cj4gLQlzdHJ1Y3QgdnJpbmdoX2tpb3YgaW92Owo+ICsJc3RydWN0IHZyaW5naF9raW92IHJp b3Y7Cj4gKwlzdHJ1Y3QgdnJpbmdoX2tpb3Ygd2lvdjsKPiAgIAl1bnNpZ25lZCBzaG9ydCBoZWFk Owo+ICAgCWJvb2wgcmVhZHk7Cj4gICAJdTY0IGRlc2NfYWRkcjsKPiBkaWZmIC0tZ2l0IGEvZHJp dmVycy92ZHBhL3ZkcGFfc2ltL3ZkcGFfc2ltX2Jsay5jIGIvZHJpdmVycy92ZHBhL3ZkcGFfc2lt L3ZkcGFfc2ltX2Jsay5jCj4gaW5kZXggMTIyYTNjMDM5NTA3Li44ZTQxYjNhYjk4ZDUgMTAwNjQ0 Cj4gLS0tIGEvZHJpdmVycy92ZHBhL3ZkcGFfc2ltL3ZkcGFfc2ltX2Jsay5jCj4gKysrIGIvZHJp dmVycy92ZHBhL3ZkcGFfc2ltL3ZkcGFfc2ltX2Jsay5jCj4gQEAgLTQxLDEzICs0MSwxMyBAQCBz dGF0aWMgdm9pZCB2ZHBhc2ltX2Jsa193b3JrKHN0cnVjdCB3b3JrX3N0cnVjdCAqd29yaykKPiAg IAkJaWYgKCF2cS0+cmVhZHkpCj4gICAJCQljb250aW51ZTsKPiAgIAo+IC0JCXdoaWxlICh2cmlu Z2hfZ2V0ZGVzY19pb3RsYigmdnEtPnZyaW5nLCAmdnEtPmlvdiwgJnZxLT5pb3YsCj4gKwkJd2hp bGUgKHZyaW5naF9nZXRkZXNjX2lvdGxiKCZ2cS0+dnJpbmcsICZ2cS0+cmlvdiwgJnZxLT53aW92 LAo+ICAgCQkJCQkgICAgJnZxLT5oZWFkLCBHRlBfQVRPTUlDKSA+IDApIHsKPiAgIAo+ICAgCQkJ aW50IHdyaXRlOwo+ICAgCj4gLQkJCXZxLT5pb3YuaSA9IHZxLT5pb3YudXNlZCAtIDE7Cj4gLQkJ CXdyaXRlID0gdnJpbmdoX2lvdl9wdXNoX2lvdGxiKCZ2cS0+dnJpbmcsICZ2cS0+aW92LCAmc3Rh dHVzLCAxKTsKPiArCQkJdnEtPndpb3YuaSA9IHZxLT53aW92LnVzZWQgLSAxOwo+ICsJCQl3cml0 ZSA9IHZyaW5naF9pb3ZfcHVzaF9pb3RsYigmdnEtPnZyaW5nLCAmdnEtPndpb3YsICZzdGF0dXMs IDEpOwo+ICAgCQkJaWYgKHdyaXRlIDw9IDApCj4gICAJCQkJYnJlYWs7Cj4gICAKPiBkaWZmIC0t Z2l0IGEvZHJpdmVycy92ZHBhL3ZkcGFfc2ltL3ZkcGFfc2ltX25ldC5jIGIvZHJpdmVycy92ZHBh L3ZkcGFfc2ltL3ZkcGFfc2ltX25ldC5jCj4gaW5kZXggZDBhMTQwM2Y2NGIyLi43ODNiMWU4NWIw OWMgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy92ZHBhL3ZkcGFfc2ltL3ZkcGFfc2ltX25ldC5jCj4g KysrIGIvZHJpdmVycy92ZHBhL3ZkcGFfc2ltL3ZkcGFfc2ltX25ldC5jCj4gQEAgLTQ3LDEyICs0 NywxMiBAQCBzdGF0aWMgdm9pZCB2ZHBhc2ltX25ldF93b3JrKHN0cnVjdCB3b3JrX3N0cnVjdCAq d29yaykKPiAgIAo+ICAgCXdoaWxlICh0cnVlKSB7Cj4gICAJCXRvdGFsX3dyaXRlID0gMDsKPiAt CQllcnIgPSB2cmluZ2hfZ2V0ZGVzY19pb3RsYigmdHhxLT52cmluZywgJnR4cS0+aW92LCBOVUxM LAo+ICsJCWVyciA9IHZyaW5naF9nZXRkZXNjX2lvdGxiKCZ0eHEtPnZyaW5nLCAmdHhxLT5yaW92 LCBOVUxMLAo+ICAgCQkJCQkgICAmdHhxLT5oZWFkLCBHRlBfQVRPTUlDKTsKPiAgIAkJaWYgKGVy ciA8PSAwKQo+ICAgCQkJYnJlYWs7Cj4gICAKPiAtCQllcnIgPSB2cmluZ2hfZ2V0ZGVzY19pb3Rs YigmcnhxLT52cmluZywgTlVMTCwgJnJ4cS0+aW92LAo+ICsJCWVyciA9IHZyaW5naF9nZXRkZXNj X2lvdGxiKCZyeHEtPnZyaW5nLCBOVUxMLCAmcnhxLT53aW92LAo+ICAgCQkJCQkgICAmcnhxLT5o ZWFkLCBHRlBfQVRPTUlDKTsKPiAgIAkJaWYgKGVyciA8PSAwKSB7Cj4gICAJCQl2cmluZ2hfY29t cGxldGVfaW90bGIoJnR4cS0+dnJpbmcsIHR4cS0+aGVhZCwgMCk7Cj4gQEAgLTYwLDEzICs2MCwx MyBAQCBzdGF0aWMgdm9pZCB2ZHBhc2ltX25ldF93b3JrKHN0cnVjdCB3b3JrX3N0cnVjdCAqd29y aykKPiAgIAkJfQo+ICAgCj4gICAJCXdoaWxlICh0cnVlKSB7Cj4gLQkJCXJlYWQgPSB2cmluZ2hf aW92X3B1bGxfaW90bGIoJnR4cS0+dnJpbmcsICZ0eHEtPmlvdiwKPiArCQkJcmVhZCA9IHZyaW5n aF9pb3ZfcHVsbF9pb3RsYigmdHhxLT52cmluZywgJnR4cS0+cmlvdiwKPiAgIAkJCQkJCSAgICAg dmRwYXNpbS0+YnVmZmVyLAo+ICAgCQkJCQkJICAgICBQQUdFX1NJWkUpOwo+ICAgCQkJaWYgKHJl YWQgPD0gMCkKPiAgIAkJCQlicmVhazsKPiAgIAo+IC0JCQl3cml0ZSA9IHZyaW5naF9pb3ZfcHVz aF9pb3RsYigmcnhxLT52cmluZywgJnJ4cS0+aW92LAo+ICsJCQl3cml0ZSA9IHZyaW5naF9pb3Zf cHVzaF9pb3RsYigmcnhxLT52cmluZywgJnJ4cS0+d2lvdiwKPiAgIAkJCQkJCSAgICAgIHZkcGFz aW0tPmJ1ZmZlciwgcmVhZCk7Cj4gICAJCQlpZiAod3JpdGUgPD0gMCkKPiAgIAkJCQlicmVhazsK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClZpcnR1YWxp emF0aW9uIG1haWxpbmcgbGlzdApWaXJ0dWFsaXphdGlvbkBsaXN0cy5saW51eC1mb3VuZGF0aW9u Lm9yZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby92 aXJ0dWFsaXphdGlvbg==