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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 EE80BC2D0DB for ; Wed, 22 Jan 2020 15:23:34 +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 C13EB2071E for ; Wed, 22 Jan 2020 15:23:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C13EB2071E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.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 1iuHqQ-0004f4-BD; Wed, 22 Jan 2020 15:23:02 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1iuHqO-0004ez-KZ for xen-devel@lists.xenproject.org; Wed, 22 Jan 2020 15:23:00 +0000 X-Inumbo-ID: 11e62977-3d2b-11ea-bc75-12813bfff9fa Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 11e62977-3d2b-11ea-bc75-12813bfff9fa; Wed, 22 Jan 2020 15:22:58 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 5CACCB029; Wed, 22 Jan 2020 15:22:57 +0000 (UTC) To: Tamas K Lengyel References: <17ea032201adfecdb5dedc3a0b9667eccdf7f118.1579628566.git.tamas.lengyel@intel.com> From: Jan Beulich Message-ID: <6cb72a36-d9af-5b96-76df-2c6746dfa245@suse.com> Date: Wed, 22 Jan 2020 16:23:04 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 MIME-Version: 1.0 In-Reply-To: <17ea032201adfecdb5dedc3a0b9667eccdf7f118.1579628566.git.tamas.lengyel@intel.com> Content-Language: en-US Subject: Re: [Xen-devel] [PATCH v5 03/18] x86/p2m: Allow p2m_get_page_from_gfn to return shared entries 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: George Dunlap , xen-devel@lists.xenproject.org, =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , Wei Liu , Andrew Cooper Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMjEuMDEuMjAyMCAxODo0OSwgVGFtYXMgSyBMZW5neWVsIHdyb3RlOgo+IFRoZSBvd25lciBk b21haW4gb2Ygc2hhcmVkIHBhZ2VzIGlzIGRvbV9jb3csIHVzZSB0aGF0IGZvciBnZXRfcGFnZQo+ IG90aGVyd2lzZSB0aGUgZnVuY3Rpb24gZmFpbHMgdG8gcmV0dXJuIHRoZSBjb3JyZWN0IHBhZ2Uu CgpJIHRoaW5rIHRoaXMgZGVzY3JpcHRpb24gbmVlZHMgaW1wcm92ZW1lbnQ6IFRoZSBmdW5jdGlv biBkb2VzIHRoZQpzcGVjaWFsIHNoYXJlZCBwYWdlIGRhbmNlIGluIG9uZSBwbGFjZSAob24gdGhl ICJmYXN0IHBhdGgiKQphbHJlYWR5LiBUaGlzIHdhbnRzIG1lbnRpb25pbmcsIGVpdGhlciBiZWNh dXNlIGl0IHdhcyBhIG1pc3Rha2UKdG8gaGF2ZSBpdCBqdXN0IHRoZXJlLCBvciBiZWNhdXNlIGEg bmV3IG5lZWQgaGFzIGFwcGVhcmVkIHRvIGFsc28KaGF2ZSBpdCBvbiB0aGUgInNsb3cgcGF0aCIu Cgo+IC0tLSBhL3hlbi9hcmNoL3g4Ni9tbS9wMm0uYwo+ICsrKyBiL3hlbi9hcmNoL3g4Ni9tbS9w Mm0uYwo+IEBAIC01OTQsNyArNTk0LDEwIEBAIHN0cnVjdCBwYWdlX2luZm8gKnAybV9nZXRfcGFn ZV9mcm9tX2dmbigKPiAgICAgIGlmICggcDJtX2lzX3JhbSgqdCkgJiYgbWZuX3ZhbGlkKG1mbikg KQo+ICAgICAgewo+ICAgICAgICAgIHBhZ2UgPSBtZm5fdG9fcGFnZShtZm4pOwo+IC0gICAgICAg IGlmICggIWdldF9wYWdlKHBhZ2UsIHAybS0+ZG9tYWluKSApCj4gKyAgICAgICAgaWYgKCAhZ2V0 X3BhZ2UocGFnZSwgcDJtLT5kb21haW4pICYmCj4gKyAgICAgICAgICAgICAvKiBQYWdlIGNvdWxk IGJlIHNoYXJlZCAqLwo+ICsgICAgICAgICAgICAgKCFkb21fY293IHx8ICFwMm1faXNfc2hhcmVk KCp0KSB8fAo+ICsgICAgICAgICAgICAgICFnZXRfcGFnZShwYWdlLCBkb21fY293KSkgKQoKV2hp bGUgdGhlcmUgbWF5IGJlIGEgcmVhc29uIHdoeSBvbiB0aGUgZmFzdCBwYXRoIHR3byBnZXRfcGFn ZSgpCmludm9jYXRpb25zIGFyZSBiZSBuZWNlc3NhcnksIGNvdWxkbid0IHlvdSBnZXQgYXdheSB3 aXRoIGp1c3QKb25lCgogICAgICAgIGlmICggIWdldF9wYWdlKHBhZ2UsICFkb21fY293IHx8ICFw Mm1faXNfc2hhcmVkKCp0KSA/IHAybS0+ZG9tYWluCiAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIDogZG9tX2NvdykgKQoKYXQgbGVhc3Qg aGVyZT8gSXQncyBhbHNvIG5vdCByZWFsbHkgY2xlYXIgdG8gbWUgd2h5IGhlcmUgYW5kCnRoZXJl IHdlIG5lZWQgIiFkb21fY293IHx8ICFwMm1faXNfc2hhcmVkKCp0KSIgLSB3b3VsZG4ndApwMm1f aXNfc2hhcmVkKCkgcmV0dXJuIGNvbnNpc3RlbnRseSAiZmFsc2UiIHdoZW4gIWRvbV9jb3cgPwoK SmFuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4t ZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczov L2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs