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=-15.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,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 7E605C4361B for ; Thu, 17 Dec 2020 11:50:05 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 DE399238E5 for ; Thu, 17 Dec 2020 11:50:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DE399238E5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 793EB87A19; Thu, 17 Dec 2020 11:50:04 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WPSjnNMXJtj5; Thu, 17 Dec 2020 11:50:03 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id 85DA687A15; Thu, 17 Dec 2020 11:50:03 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 6EFC3C088E; Thu, 17 Dec 2020 11:50:03 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id EC6FBC013B for ; Thu, 17 Dec 2020 11:50:02 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id D07E7875C7 for ; Thu, 17 Dec 2020 11:50:02 +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 JHzaDSypfBxA for ; Thu, 17 Dec 2020 11:50:01 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by whitealder.osuosl.org (Postfix) with ESMTPS id 2E33F875A0 for ; Thu, 17 Dec 2020 11:50:00 +0000 (UTC) Received: from DGGEMM404-HUB.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4CxVdp4VVtz56Gr; Thu, 17 Dec 2020 19:49:18 +0800 (CST) Received: from dggema765-chm.china.huawei.com (10.1.198.207) by DGGEMM404-HUB.china.huawei.com (10.3.20.212) with Microsoft SMTP Server (TLS) id 14.3.498.0; Thu, 17 Dec 2020 19:49:56 +0800 Received: from [10.174.185.137] (10.174.185.137) by dggema765-chm.china.huawei.com (10.1.198.207) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1913.5; Thu, 17 Dec 2020 19:49:55 +0800 Subject: Re: [PATCH v11 04/13] vfio/pci: Add VFIO_REGION_TYPE_NESTED region type To: Eric Auger , , , , , , , , , , References: <20201116110030.32335-1-eric.auger@redhat.com> <20201116110030.32335-5-eric.auger@redhat.com> From: Kunkun Jiang Message-ID: <2b5031d4-fa1a-c893-e7e4-56c68da600e4@huawei.com> Date: Thu, 17 Dec 2020 19:49:55 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <20201116110030.32335-5-eric.auger@redhat.com> Content-Language: en-US X-Originating-IP: [10.174.185.137] X-ClientProxiedBy: dggeme706-chm.china.huawei.com (10.1.199.102) To dggema765-chm.china.huawei.com (10.1.198.207) X-CFilter-Loop: Reflected Cc: jean-philippe@linaro.org, vivek.gautam@arm.com, wanghaibin.wang@huawei.com, zhangfei.gao@linaro.org, Keqian Zhu X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support 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: iommu-bounces@lists.linux-foundation.org Sender: "iommu" SGkgRXJpYywKCk9uIDIwMjAvMTEvMTYgMTk6MDAsIEVyaWMgQXVnZXIgd3JvdGU6Cj4gQWRkIGEg bmV3IHNwZWNpZmljIERNQV9GQVVMVCByZWdpb24gYWltaW5nIHRvIGV4cG9zZWQgbmVzdGVkIG1v ZGUKPiB0cmFuc2xhdGlvbiBmYXVsdHMuIFRoaXMgcmVnaW9uIG9ubHkgaXMgZXhwb3NlZCBpZiB0 aGUgZGV2aWNlCj4gaXMgYXR0YWNoZWQgdG8gYSBuZXN0ZWQgZG9tYWluLgo+Cj4gVGhlIHJlZ2lv biBoYXMgYSByaW5nIGJ1ZmZlciB0aGF0IGNvbnRhaW5zIHRoZSBhY3R1YWwgZmF1bHQKPiByZWNv cmRzIHBsdXMgYSBoZWFkZXIgYWxsb3dpbmcgdG8gaGFuZGxlIGl0ICh0YWlsL2hlYWQgaW5kaWNl cywKPiBtYXggY2FwYWNpdHksIGVudHJ5IHNpemUpLiBBdCB0aGUgbW9tZW50IHRoZSByZWdpb24g aXMgZGltZW5zaW9ubmVkCj4gZm9yIDUxMiBmYXVsdCByZWNvcmRzLgo+Cj4gU2lnbmVkLW9mZi1i eTogRXJpYyBBdWdlciA8ZXJpYy5hdWdlckByZWRoYXQuY29tPgo+Cj4gLS0tClsuLi5dCj4gZGlm ZiAtLWdpdCBhL2luY2x1ZGUvdWFwaS9saW51eC92ZmlvLmggYi9pbmNsdWRlL3VhcGkvbGludXgv dmZpby5oCj4gaW5kZXggYjM1MmU3NmNmYjcxLi42MjlkZmIzOGQ5ZTcgMTAwNjQ0Cj4gLS0tIGEv aW5jbHVkZS91YXBpL2xpbnV4L3ZmaW8uaAo+ICsrKyBiL2luY2x1ZGUvdWFwaS9saW51eC92Zmlv LmgKPiBAQCAtMzQzLDYgKzM0Myw5IEBAIHN0cnVjdCB2ZmlvX3JlZ2lvbl9pbmZvX2NhcF90eXBl IHsKPiAgIC8qIHN1Yi10eXBlcyBmb3IgVkZJT19SRUdJT05fVFlQRV9HRlggKi8KPiAgICNkZWZp bmUgVkZJT19SRUdJT05fU1VCVFlQRV9HRlhfRURJRCAgICAgICAgICAgICgxKQo+ICAgCj4gKyNk ZWZpbmUgVkZJT19SRUdJT05fVFlQRV9ORVNURUQJCQkoMikKPiArI2RlZmluZSBWRklPX1JFR0lP Tl9TVUJUWVBFX05FU1RFRF9ETUFfRkFVTFQJKDEpCj4gKwoKVGhlIG1hY3JvICpkZWZpbmUgVkZJ T19SRUdJT05fVFlQRV9ORVNURUTCoMKgwqAgKDIpKiBpcyBpbiBjb25mbGljdCB3aXRoCgoqI2Rl ZmluZSBWRklPX1JFR0lPTl9UWVBFX0NDV8KgwqDCoCAoMikqLgoKClRoYW5rcywKCkt1bmt1biBK aWFuZy4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlv bW11IG1haWxpbmcgbGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczov L2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ==