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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1B01EC433F5 for ; Sun, 17 Apr 2022 21:06:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=LDYFyNJBCnX4pluNGWQi97W10zPH2ALOsyVrxZYbhzQ=; b=lrgCEjGLE8zhczY0k03drVv6+w +HlnrdoD+B/98/3j9yxb6i49Hm3t4QXoX4nzMw7hK5udp+UeAZex/lGpwkAgtS33Dg8ktSKhgRjTE OoVhtLINMX84Mq7hSoG9+TYSFOP4s9B4OQN86TivvK/OZGlf41AfUqtTEDVmXxDNmPzPX+0orrpq8 UPtCVmYRIKnXr4jIj+crsJnzsa6Id/kCOWZuj5OkbrnaJw44/yS6/xlLRgLhkW+0HhmH2mhET7Td9 Poiw8+MpSYhMRnePfLXtA3PSRkQdW5KM2dSKJ7Qwf+fBxY8OXDlBLDNKbH49/SeK0T6YyPrltQymv vWiQenzQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ngC56-00Ey1g-5i; Sun, 17 Apr 2022 21:05:16 +0000 Received: from mail-lj1-x22b.google.com ([2a00:1450:4864:20::22b]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ngC52-00Exzp-MN for linux-arm-kernel@lists.infradead.org; Sun, 17 Apr 2022 21:05:14 +0000 Received: by mail-lj1-x22b.google.com with SMTP id h11so14980328ljb.2 for ; Sun, 17 Apr 2022 14:05:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding:content-language; bh=3+nbTY+84mWqEaxVh9si/y236NGTkkPaVHQEn9FFNrQ=; b=SqsQaN3fYS853QyFaqhKfWVcI1U/A4Juzvi+EN0SFJi1ZQ2FiQxlnlVvOkN8wT92pg gYeEGqE2PFZCSAUQjDQ8XlgcTPj/J2mPfqkKTxv9+bvDqHwu4L+OrW2E048B79hejG7J YGS5pVsV5N+uPco8nKvkzcIXjk8rBoBeWtXYgbHek3YWtvLnCgvIMLLeFD1jBuQmmrJf ZQgFJnXSrmh9mMXyBlk6yc2g6dV6Eq6VoeNeRcFrMFJVpIdAoMg92fyYoEGZ/Al0blfo epqj6ufkNBRCTbF7UfmPszNHZrkig+Ad6MAtecdlZJnWfmFOMAluLmNo7zX3yOPkSVAx 9dBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=3+nbTY+84mWqEaxVh9si/y236NGTkkPaVHQEn9FFNrQ=; b=eCIPB8ZVbx1uyIdi+7P69Rw/KgPS7bQYQxVSPVLYFdcTQEtsP7k+7yHQ7LhJsbh15u gzhoIgckCisDS+sJX+JryqmmId/WIDi+RRBMGgMilKfQb7BEuVTmK1LnbSBijIqJlsLb kgyiwjmgK/YhfS7WPUkrjx2ERYhyztthApASSFIyxX2HhsMXqq0UNQEKJFtAkqtxvTWk BYNgBVUhLpADzvUHnIA35m+GwJ0OQ7X8165H/MR0YhbJn/PLteBqT7bfyQ/w6lBnFHKz ozfsSNNmBlDkx0CHy054ghG7nHSXXo4g55LpT8Q5NForQLegxYGZG5Gj3+J8RsGXhTpt 75dg== X-Gm-Message-State: AOAM531w+im3DAfUlK48d+IBM15+38gO4fi4byGdQ56GCwm3gz6mNVtP PdRH9uStjT7IPMlV8da0vY0= X-Google-Smtp-Source: ABdhPJwA45/8xaDYUsCh46Vd5PLnnCYBZYvMyLLmDl7WHF9eI0ftD1WkdGwRVKQNKCGBZhzlQf9Pyg== X-Received: by 2002:a2e:b8c7:0:b0:24d:a697:cbf3 with SMTP id s7-20020a2eb8c7000000b0024da697cbf3mr5387864ljp.448.1650229510204; Sun, 17 Apr 2022 14:05:10 -0700 (PDT) Received: from [192.168.1.7] ([212.22.223.21]) by smtp.gmail.com with ESMTPSA id p9-20020a2e93c9000000b0024b3c2ecc18sm979821ljh.115.2022.04.17.14.05.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 17 Apr 2022 14:05:09 -0700 (PDT) Subject: Re: [RFC PATCH 6/6] arm/xen: Assign xen-virtio DMA ops for virtio devices in Xen guests To: Christoph Hellwig Cc: Stefano Stabellini , xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Oleksandr Tyshchenko , Boris Ostrovsky , Juergen Gross , Julien Grall , "Michael S. Tsirkin" References: <1649963973-22879-1-git-send-email-olekstysh@gmail.com> <1649963973-22879-7-git-send-email-olekstysh@gmail.com> From: Oleksandr Message-ID: Date: Mon, 18 Apr 2022 00:05:08 +0300 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: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220417_140512_778390_1C21BED3 X-CRM114-Status: GOOD ( 22.50 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Ck9uIDE2LjA0LjIyIDA5OjA3LCBDaHJpc3RvcGggSGVsbHdpZyB3cm90ZToKCkhlbGxvIENocmlz dG9waAoKPiBPbiBGcmksIEFwciAxNSwgMjAyMiBhdCAwMzowMjo0NVBNIC0wNzAwLCBTdGVmYW5v IFN0YWJlbGxpbmkgd3JvdGU6Cj4+IFRoaXMgbWFrZXMgc2Vuc2Ugb3ZlcmFsbC4gQ29uc2lkZXJp bmcgdGhhdCB0aGUgc3dpb3RsYi14ZW4gY2FzZSBhbmQgdGhlCj4+IHZpcnRpbyBjYXNlIGFyZSBt dXR1YWxseSBleGNsdXNpdmUsIEkgd291bGQgd3JpdGUgaXQgbGlrZSB0aGlzOgo+IEN1cmlvdXMg cXVlc3Rpb246ICBXaHkgY2FuJ3QgdGhlIHNhbWUgZ3JhbnQgc2NoZW1lIGFsc28gYmUgdXNlZCBm b3IKPiBub24tdmlydGlvIGRldmljZXM/ICBJIHJlYWxseSBoYXRlIGhhdmluZyB2aXJ0aW8gaG9v a3MgaW4gdGhlIGFyY2gKPiBkbWEgY29kZS4gIFdoeSBjYW4ndCBYZW4ganVzdCBzYXkgaW4gRFQv QUNQSSB0aGF0IGdyYW50cyBjYW4gYmUgdXNlZAo+IGZvciBhIGdpdmVuIGRldmljZT8KCgpJbiBY ZW4gc3lzdGVtOgotIHRoZSBncmFudHMgYXJlIG5vdCB1c2VkIGZvciAibm9uLXZpcnR1YWxpemVk IiBkZXZpY2VzIGF0IGFsbCAocGxhdGZvcm0gCmRldmljZXMgZm9yIHRoZSBwYXNzdGhyb3VnaCku Ci0gdGhlIGdyYW50cyBhcmUgd2lkZWx5IHVzZWQgZm9yICJ2aXJ0dWFsaXplZCwgYnV0IG5vbi12 aXJ0aW8iIGRldmljZXMgCih0cmFkaXRpb25hbCBYZW4gUFYgZGV2aWNlcyksIGJ1dCBncmFudHMg Zm9yIHRoZXNlIFhlbiBQViBkZXZpY2VzCmFyZSB1c2VkIGluIGEgZGlmZmVyZW50IHdheSBhbmQg Km5vdCogYXQgdGhlIERNQSBvcHMgbGV2ZWwgbGlrZSBpbiAKY3VycmVudCBhcHByb2FjaAoKT3Ig SSBtaXN1bmRlcnN0b29kIHlvdXIgcXVlc3Rpb24/CgpUaGlzIHBhdGNoIHNlcmllcyB0cmllcyB0 byBtYWtlIHRoaW5ncyB3b3JrIHdpdGggInZpcnRpbyIgZGV2aWNlcyBpbiBYZW4gCnN5c3RlbSB3 aXRob3V0IGludHJvZHVjaW5nIGFueSBtb2RpZmljYXRpb25zIHRvIGNvZGUgdW5kZXIgZHJpdmVy cy92aXJ0aW8uCldlIGNvdWxkIGF2b2lkIGhhdmluZyB2aXJ0aW8gaG9va3MgaW4gdGhlIGFyY2gg RE1BIGNvZGUsIGJ1dCB3ZSBuZWVkIHRvIAp0cmlnZ2VyIHNldHRpbmcgeGVuLXZpcnRpbyBETUEg b3BzIGZvciB0aGUgdmlydGlvIGRldmljZSBmcm9tIHNvbWUgb3RoZXIgCnBsYWNlLgpGb3IgZXhh bXBsZSwgdGhlIGZvbGxvd2luZyBjb2RlIHdvdWxkIGFsc28gd29yaywgYnV0IHJlcXVpcmVzIGFs dGVyaW5nIAp2aXJ0aW9fbW1pb19wcm9iZSgpOgoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvdmlydGlv L3ZpcnRpb19tbWlvLmMgYi9kcml2ZXJzL3ZpcnRpby92aXJ0aW9fbW1pby5jCmluZGV4IDU2MTI4 YjkuLjhmNDg0OTEgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvdmlydGlvL3ZpcnRpb19tbWlvLmMKKysr IGIvZHJpdmVycy92aXJ0aW8vdmlydGlvX21taW8uYwpAQCAtNjE1LDYgKzYxNSw5IEBAIHN0YXRp YyBpbnQgdmlydGlvX21taW9fcHJvYmUoc3RydWN0IHBsYXRmb3JtX2RldmljZSAKKnBkZXYpCiDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgRE1BX0JJVF9NQVNLKDMyICsgClBBR0Vf U0hJRlQpKTsKIMKgwqDCoMKgwqDCoMKgIH0gZWxzZSB7CiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqAgcmMgPSBkbWFfc2V0X21hc2tfYW5kX2NvaGVyZW50KCZwZGV2LT5kZXYsIApETUFf QklUX01BU0soNjQpKTsKKworwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCBpZiAoYXJjaF9o YXNfcmVzdHJpY3RlZF92aXJ0aW9fbWVtb3J5X2FjY2VzcygpKQorIHhlbl92aXJ0aW9fc2V0dXBf ZG1hX29wcygmcGRldi0+ZGV2KTsKIMKgwqDCoMKgwqDCoMKgIH0KIMKgwqDCoMKgwqDCoMKgIGlm IChyYykKIMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCByYyA9IGRtYV9zZXRfbWFza19h bmRfY29oZXJlbnQoJnBkZXYtPmRldiwgCkRNQV9CSVRfTUFTSygzMikpOwoKCkFub3RoZXIgcG9z c2libGUgb3B0aW9uIGNvdWxkIGJlIHRvIGludHJvZHVjZSBsb2NhbCBpbml0IGZ1bmN0aW9uIGlu IApkcml2ZXJzL3hlbi94ZW4tdmlydGlvLmMgdG8gc2NhbiB0aGUgZGV2aWNlIHRyZWUgYW5kIHNl dCB4ZW4tdmlydGlvIERNQSAKb3BzIGZvciBhbGwgZGV2aWNlcyB3aXRoIHRoZQoieGVuLGRldi1k b21pZCIgcHJvcGVydHkuCgoKV2hhdCBkbyB5b3UgdGhpbms/CgotLSAKUmVnYXJkcywKCk9sZWtz YW5kciBUeXNoY2hlbmtvCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBs aXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlz dGluZm8vbGludXgtYXJtLWtlcm5lbAo=