From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [PATCH for-next 8/9] xen: Introduce HAS_M2P config and use to protect mfn_to_gmfn call Date: Thu, 18 Apr 2019 16:09:21 +0100 Message-ID: <20539440-8014-cd4d-3c95-e88b53bcce32@arm.com> References: <20190218113600.9540-1-julien.grall@arm.com> <20190218113600.9540-9-julien.grall@arm.com> <5C891FA4020000780021E3A0@prv1-mh.provo.novell.com> <5b02c8e1-5ff6-a1a1-e1dd-650123d66006@arm.com> <5C8A0903020000780021E662@prv1-mh.provo.novell.com> <20190418114627.GC30543@zion.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hH8fH-0002jY-2d for xen-devel@lists.xenproject.org; Thu, 18 Apr 2019 15:09:27 +0000 In-Reply-To: <20190418114627.GC30543@zion.uk.xensource.com> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Wei Liu Cc: Stefano Stabellini , "andrii_anisov@epam.com" , Konrad Rzeszutek Wilk , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , oleksandr_tyshchenko@epam.com, Jan Beulich , xen-devel , Roger Pau Monne List-Id: xen-devel@lists.xenproject.org SGksCgpPbiAxOC8wNC8yMDE5IDEyOjQ2LCBXZWkgTGl1IHdyb3RlOgo+IE9uIFdlZCwgQXByIDE3 LCAyMDE5IGF0IDA2OjQyOjQ3UE0gKzAxMDAsIEp1bGllbiBHcmFsbCB3cm90ZToKPj4gSGksCj4+ Cj4+IEBXZWksIEBJYW46IERvIHlvdSBoYXZlIGFueSBpbnB1dD8KPiAKPiBTb3JyeSBJIGhhdmVu J3QgYmVlbiBmb2xsb3dpbmcgdGhpcyBjbG9zZWx5LCBidXQgc2hvdWxkbid0IHdlIGZpeCB0aGUK PiBpbnRlcmZhY2UgdG8gcmV0dXJuIGdmbiBpbnN0ZWFkPyBBbmQgdGhlbiB0aGUgbWFwcGluZyBv ZiBpdCBzaG91bGQKPiBpbnRlcnByZXQgdGhlIHZhbHVlIHByb3Blcmx5IHBlciBndWVzdCB0eXBl LgoKV2UgYWxyZWFkeSByZXR1cm4gYSBHRk4gdG9kYXkuIFRoZSBwcm9ibGVtIGlzIHdlIG9ubHkg aG9sZCBhbiBNRk4gYXQgdGhhdCB0aW1lLgoKQXQgdGhlIG1vbWVudCwgd2UgcmVseSBvbiB0aGUg TTJQIHRvIGZpbmQgdGhlIGNvcnJlc3BvbmRpbmcgR0ZOLiBBcyB3ZSBkb24ndCAKaGF2ZSBhbiBN MlAgb24gQXJtLCB3ZSB3b3VsZCBoYXZlIHRvIHN0b3JlIHRoZSBhc3NvY2lhdGVkIEdGTi4KCkJ1 dCBhbGwgdGhpcyBsb2dpYyBpcyBhIGJpdCBicm9rZW4uIEl0IHJlbGllcyBvbiB0aGUgdG9vbHN0 YWNrIChvciB0aGUgZ3Vlc3QpIHRvIApoYXZlIG1hcHBlZCB0aGUgc2hhcmVkIGluZm8gZnJhbWUg aW4gdGhlIFAyTSB1c2luZyB0aGUgcGh5c21hcCBoeXBlcnZpc29yIHdpdGggClhFTk1BUFNQQUNF X3NoYXJlZF9pbmZvIGJlZm9yZWhhbmQuIFRoaXMgaXMgYWxzbyByYWN5IGFzIHlvdSBtYXkgcmV0 dXJuIGEgR0ZOIAp0aGF0IHdhcyB1bm1hcHBlZC9yZW1hcHBlZCB0byBzb21ldGhpbmcgZWxzZSBi ZWZvcmUgdGhlIHRvb2xzdGFjayBoYXMgYSBjaGFuY2UgCnRvIG1hcCBpbiBpdHMgYWRkcmVzcyBz cGFjZSB0aGUgcGFnZS4KClRoZSBjb3JyZWN0IHNvbHV0aW9uIHdvdWxkIGJlIHRvIHBoYXNlIG91 dCB0aGUgZmllbGQgc2hhcmVkX2luZm9fZnJhbWUgYW5kIHVzZSAKWEVOTUVNX2FjcXVpcmVfcmVz b3VyY2UgaW5zdGVhZC4gSG93ZXZlciwgdGhpcyByZXF1aXJlcyB0aGUgYXNzb2NpYXRlZCBpb2N0 bCB0byAKYmUgaW1wbGVtZW50ZWQgaW4gTGludXguCgo+IAo+IEkgZG9uJ3Qgc2VlIGltbWVkaWF0 ZWx5IGhvdyB1c2VyIHNwYWNlIHByb2dyYW0gd2lsbCBuZWVkIHRvIGFjY2VzcyB0aGlzCj4gcGFn ZSBmb3IgYXV0b3RyYW5zbGF0ZWQgZ3Vlc3RzIHRob3VnaC4KCklmIHRoZXJlIGFyZSBubyB1c2Us IHRoZW4gSSBhbSBub3QgY29udmluY2VkIGl0IGlzIHdvcnRoIHRyeWluZyB0byBtYWtlIApzaGFy ZWRfaW5mb19mcmFtZSB3b3JraW5nIG9uIEFybS4KCkNoZWVycywKCi0tIApKdWxpZW4gR3JhbGwK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZl bCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlz dHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw= 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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 21248C10F0E for ; Thu, 18 Apr 2019 15:09:39 +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 E319B205F4 for ; Thu, 18 Apr 2019 15:09:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E319B205F4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.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 1hH8fH-0002jf-Nh; Thu, 18 Apr 2019 15:09:27 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hH8fH-0002jY-2d for xen-devel@lists.xenproject.org; Thu, 18 Apr 2019 15:09:27 +0000 X-Inumbo-ID: f4184ea9-61eb-11e9-92d7-bc764e045a96 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTP id f4184ea9-61eb-11e9-92d7-bc764e045a96; 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charset="UTF-8"; format="flowed" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Message-ID: <20190418150921.2_NHJp80lPt3uqjF_tNc68vhuxAOHwcC-EAgHM-HdnM@z> SGksCgpPbiAxOC8wNC8yMDE5IDEyOjQ2LCBXZWkgTGl1IHdyb3RlOgo+IE9uIFdlZCwgQXByIDE3 LCAyMDE5IGF0IDA2OjQyOjQ3UE0gKzAxMDAsIEp1bGllbiBHcmFsbCB3cm90ZToKPj4gSGksCj4+ Cj4+IEBXZWksIEBJYW46IERvIHlvdSBoYXZlIGFueSBpbnB1dD8KPiAKPiBTb3JyeSBJIGhhdmVu J3QgYmVlbiBmb2xsb3dpbmcgdGhpcyBjbG9zZWx5LCBidXQgc2hvdWxkbid0IHdlIGZpeCB0aGUK PiBpbnRlcmZhY2UgdG8gcmV0dXJuIGdmbiBpbnN0ZWFkPyBBbmQgdGhlbiB0aGUgbWFwcGluZyBv ZiBpdCBzaG91bGQKPiBpbnRlcnByZXQgdGhlIHZhbHVlIHByb3Blcmx5IHBlciBndWVzdCB0eXBl LgoKV2UgYWxyZWFkeSByZXR1cm4gYSBHRk4gdG9kYXkuIFRoZSBwcm9ibGVtIGlzIHdlIG9ubHkg aG9sZCBhbiBNRk4gYXQgdGhhdCB0aW1lLgoKQXQgdGhlIG1vbWVudCwgd2UgcmVseSBvbiB0aGUg TTJQIHRvIGZpbmQgdGhlIGNvcnJlc3BvbmRpbmcgR0ZOLiBBcyB3ZSBkb24ndCAKaGF2ZSBhbiBN MlAgb24gQXJtLCB3ZSB3b3VsZCBoYXZlIHRvIHN0b3JlIHRoZSBhc3NvY2lhdGVkIEdGTi4KCkJ1 dCBhbGwgdGhpcyBsb2dpYyBpcyBhIGJpdCBicm9rZW4uIEl0IHJlbGllcyBvbiB0aGUgdG9vbHN0 YWNrIChvciB0aGUgZ3Vlc3QpIHRvIApoYXZlIG1hcHBlZCB0aGUgc2hhcmVkIGluZm8gZnJhbWUg aW4gdGhlIFAyTSB1c2luZyB0aGUgcGh5c21hcCBoeXBlcnZpc29yIHdpdGggClhFTk1BUFNQQUNF X3NoYXJlZF9pbmZvIGJlZm9yZWhhbmQuIFRoaXMgaXMgYWxzbyByYWN5IGFzIHlvdSBtYXkgcmV0 dXJuIGEgR0ZOIAp0aGF0IHdhcyB1bm1hcHBlZC9yZW1hcHBlZCB0byBzb21ldGhpbmcgZWxzZSBi ZWZvcmUgdGhlIHRvb2xzdGFjayBoYXMgYSBjaGFuY2UgCnRvIG1hcCBpbiBpdHMgYWRkcmVzcyBz cGFjZSB0aGUgcGFnZS4KClRoZSBjb3JyZWN0IHNvbHV0aW9uIHdvdWxkIGJlIHRvIHBoYXNlIG91 dCB0aGUgZmllbGQgc2hhcmVkX2luZm9fZnJhbWUgYW5kIHVzZSAKWEVOTUVNX2FjcXVpcmVfcmVz b3VyY2UgaW5zdGVhZC4gSG93ZXZlciwgdGhpcyByZXF1aXJlcyB0aGUgYXNzb2NpYXRlZCBpb2N0 bCB0byAKYmUgaW1wbGVtZW50ZWQgaW4gTGludXguCgo+IAo+IEkgZG9uJ3Qgc2VlIGltbWVkaWF0 ZWx5IGhvdyB1c2VyIHNwYWNlIHByb2dyYW0gd2lsbCBuZWVkIHRvIGFjY2VzcyB0aGlzCj4gcGFn ZSBmb3IgYXV0b3RyYW5zbGF0ZWQgZ3Vlc3RzIHRob3VnaC4KCklmIHRoZXJlIGFyZSBubyB1c2Us IHRoZW4gSSBhbSBub3QgY29udmluY2VkIGl0IGlzIHdvcnRoIHRyeWluZyB0byBtYWtlIApzaGFy ZWRfaW5mb19mcmFtZSB3b3JraW5nIG9uIEFybS4KCkNoZWVycywKCi0tIApKdWxpZW4gR3JhbGwK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZl bCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlz dHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=