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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 9E430C35646 for ; Fri, 21 Feb 2020 17:08:50 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 6F05020722 for ; Fri, 21 Feb 2020 17:08:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=tklengyel-com.20150623.gappssmtp.com header.i=@tklengyel-com.20150623.gappssmtp.com header.b="FJoBoN77" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6F05020722 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=tklengyel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j5Bmx-0004yE-9y; Fri, 21 Feb 2020 17:08:31 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1j5Bmv-0004y8-C4 for xen-devel@lists.xenproject.org; Fri, 21 Feb 2020 17:08:29 +0000 X-Inumbo-ID: c75a344c-54cc-11ea-b0fd-bc764e2007e4 Received: from mail-ed1-x543.google.com (unknown [2a00:1450:4864:20::543]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id c75a344c-54cc-11ea-b0fd-bc764e2007e4; Fri, 21 Feb 2020 17:08:28 +0000 (UTC) Received: by mail-ed1-x543.google.com with SMTP id p3so3207818edx.7 for ; Fri, 21 Feb 2020 09:08:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tklengyel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=52W8VTfnri2jTw6ckglFMSiiw8w6nKRGW5Wvdwnd+R4=; b=FJoBoN77Vn7ElWnWOu1URnufVT/ff7Hib6Wda+tbN/fQnpaNM8M+ygoBIB53ubxvMW RPhZWqCqyOCLDuy40Y7CNAz3K68ifq3UPSHVjBP/fASJMiF3Cp5u6pOYVi3f4DWDH0ZT VMjk+k24A+mOjlp/bebWimI5FSLYlG5BU1XuLpBlQgY52MeC8OGCFmshc6+VOdW05ZUr MkaA34uKgX//zflkiBHUMTjy6d6xoHVth2PalhXK3pPnGqHccJ9GSsLlMJ9JZ0xAEyNn glNXP0yP1wBAR129nvyOYKXnknUWsHAcT4PJAF5TC27noZ3Cor5ka8Xr1vZInbsLXC57 vFpQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=52W8VTfnri2jTw6ckglFMSiiw8w6nKRGW5Wvdwnd+R4=; b=dRpXfXCa47ZwHnNayZvP//xZmdzdjxpB5gmdciTRq2jcBVKlzPEzb1Sf6erh1/lU4+ 7OqfpFjJtbFJtMQ/UvpZ+zbd8OkNCgeqzO+dhqagziDjUcDMDbHYSM0tjIo5ranGPARo 4rC/PUapV8Re3TndWOm9J6WVwOQj+/oWc0ow8N780Ap7fnKpnHIWy1Qw2BW7osHDHgCF +Nbq0EJMmnskrsliD/t4vR5rLIM4Rl3ZcVLdVpW9Qk91qzM6u/QwPl3pFm1HqHOfS9GR 9vfVI2Wc7EAvEYZkn3Yu/M/UqIGXFwyMApqVHO67OXRuWm/o5Z6amVj4gEIzEGYzjLpa a2IA== X-Gm-Message-State: APjAAAUyPwjnltaviUeGGsp18sUiAAFlk8OJly92PQQDY8tHdAQkyrNZ B1K7a/y6BDiJVz5qtvmH+pjc0+tEM6E= X-Google-Smtp-Source: APXvYqzvRLDzhJnr6vueesKDwFvX5NprwctiGjs4UhzjfLpr1lvHrAPwVlyRajoRVfZV5NBn0yGmPw== X-Received: by 2002:aa7:ca0a:: with SMTP id y10mr16023797eds.23.1582304907596; Fri, 21 Feb 2020 09:08:27 -0800 (PST) Received: from mail-wr1-f46.google.com (mail-wr1-f46.google.com. [209.85.221.46]) by smtp.gmail.com with ESMTPSA id sa9sm278637ejb.28.2020.02.21.09.08.26 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 21 Feb 2020 09:08:26 -0800 (PST) Received: by mail-wr1-f46.google.com with SMTP id y11so2851659wrt.6 for ; Fri, 21 Feb 2020 09:08:26 -0800 (PST) X-Received: by 2002:adf:f986:: with SMTP id f6mr51502336wrr.182.1582304905857; Fri, 21 Feb 2020 09:08:25 -0800 (PST) MIME-Version: 1.0 References: <0f7d636910c45e9ca32fda4ef864a9b7d6e32745.1581362050.git.tamas.lengyel@intel.com> In-Reply-To: From: Tamas K Lengyel Date: Fri, 21 Feb 2020 10:07:49 -0700 X-Gmail-Original-Message-ID: Message-ID: To: Andrew Cooper Subject: Re: [Xen-devel] [PATCH v8 3/5] xen/mem_sharing: VM forking X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Julien Grall , Stefano Stabellini , Tamas K Lengyel , Wei Liu , Konrad Rzeszutek Wilk , George Dunlap , Ian Jackson , Jan Beulich , Xen-devel , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gRnJpLCBGZWIgMjEsIDIwMjAgYXQgNzo0MiBBTSBBbmRyZXcgQ29vcGVyIDxhbmRyZXcuY29v cGVyM0BjaXRyaXguY29tPiB3cm90ZToKPgo+IE9uIDEwLzAyLzIwMjAgMTk6MjEsIFRhbWFzIEsg TGVuZ3llbCB3cm90ZToKPiA+ICtzdGF0aWMgaW50IG1lbV9zaGFyaW5nX2Zvcmsoc3RydWN0IGRv bWFpbiAqZCwgc3RydWN0IGRvbWFpbiAqY2QpCj4gPiArewo+ID4gKyAgICBpbnQgcmMgPSAtRUlO VkFMOwo+ID4gKwo+ID4gKyAgICBpZiAoICFjZC0+Y29udHJvbGxlcl9wYXVzZV9jb3VudCApCj4g PiArICAgICAgICByZXR1cm4gcmM7Cj4gPiArCj4gPiArICAgIC8qCj4gPiArICAgICAqIFdlIG9u bHkgd2FudCB0byBnZXQgYW5kIHBhdXNlIHRoZSBwYXJlbnQgb25jZSwgbm90IGVhY2ggdGltZSB0 aGlzCj4gPiArICAgICAqIG9wZXJhdGlvbiBpcyByZXN0YXJ0ZWQgZHVlIHRvIHByZWVtcHRpb24u Cj4gPiArICAgICAqLwo+ID4gKyAgICBpZiAoICFjZC0+cGFyZW50X3BhdXNlZCApCj4gPiArICAg IHsKPiA+ICsgICAgICAgIEFTU0VSVChnZXRfZG9tYWluKGQpKTsKPiA+ICsgICAgICAgIGRvbWFp bl9wYXVzZShkKTsKPiA+ICsKPiA+ICsgICAgICAgIGNkLT5wYXJlbnRfcGF1c2VkID0gdHJ1ZTsK PiA+ICsgICAgICAgIGNkLT5tYXhfcGFnZXMgPSBkLT5tYXhfcGFnZXM7Cj4gPiArICAgICAgICBj ZC0+bWF4X3ZjcHVzID0gZC0+bWF4X3ZjcHVzOwo+Cj4gU29ycnksIEkgc3Bva2UgdG9vIHNvb24u ICBZb3UgY2FuJ3QgbW9kaWZ5IG1heF92Y3B1cyBoZXJlLCBiZWNhdXNlIGl0Cj4gdmlvbGF0ZXMg dGhlIGludmFyaWFudCB0aGF0IGRvbWFpbl92Y3B1KCkgZGVwZW5kcyB1cG9uIGZvciBzYWZldHku Cj4KPiBJZiB0aGUgdG9vbHN0YWNrIGdldHMgdGhpbmdzIHdyb25nLCBYZW4gd2lsbCBlaXRoZXIg bGVhayBzdHJ1Y3QgdmNwdSdzCj4gb24gY2QncyB0ZWFyZG93biwgb3IgY29ycnVwdCBtZW1vcnkg YmV5b25kIHRoZSBlbmQgb2YgdGhlIGNkLT52Y3B1W10gYXJyYXkuCj4KPiBMb29raW5nIGF0IHRo ZSBoeXBlcmNhbGwgc2VtYW50aWNzLCB1c2Vyc3BhY2UgY3JlYXRlcyBhIG5ldyBkb21haW4KPiAo d2hpY2ggc3BlY2lmaWVzIG1heF9jcHVzKSwgdGhlbiBjYWxscyBtZW1fc2hhcmluZ19mb3JrKHBh cmVudF9kb20sCj4gbmV3X2RvbSk7ICBGb3JraW5nIHNob3VsZCBiZSByZWplY3RlZCBpZiB0b29s c3RhY2sgaGFzbid0IGNob3NlbiB0aGUKPiBzYW1lIG51bWJlciBvZiB2Y3B1cyBmb3IgdGhlIG5l dyBkb21haW4uCgpUaGF0J3MgdW5mb3J0dW5hdGUgc2luY2UgdGhpcyB3b3VsZCByZXF1aXJlIGFu IGV4dHJhIGh5cGVyY2FsbCBqdXN0IHRvCmdldCBpbmZvcm1hdGlvbiBYZW4gYWxyZWFkeSBoYXMu IEkgdGhpbmsgaW5zdGVhZCBvZiB3aGF0IHlvdSByZWNvbW1lbmQKd2hhdCBJJ2xsIGRvIGlzIGV4 dGVuZCBYRU5fRE9NQ1RMX2NyZWF0ZWRvbWFpbiB0byBpbmNsdWRlIHRoZSBwYXJlbnQKZG9tYWlu J3MgSUQgYWxyZWFkeSBzbyBYZW4gY2FuIGdhdGhlciB0aGVzZSBpbmZvcm1hdGlvbiBhdXRvbWF0 aWNhbGx5CndpdGhvdXQgdGhlIHRvb2xzdGFjayBoYXZpbmcgdG8gZG8gaXQgdGhpcyByb3VuZGFi b3V0IHdheS4KCj4KPiBUaGlzIHJhaXNlcyB0aGUgcXVlc3Rpb24gb2Ygd2hldGhlciB0aGUgc2Ft ZSBzaG91bGQgYmUgdHJ1ZSBmb3IKPiBtYXhfcGFnZXMgYXMgd2VsbC4KCkNvdWxkIHlvdSBleHBh bmQgb24gdGhpcz8KClRoYW5rcywKVGFtYXMKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3Rz LnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0 aW5mby94ZW4tZGV2ZWw=