From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH 09/14] xen: Introduce HAS_M2P config and use to protect mfn_to_gmfn call Date: Fri, 10 May 2019 08:19:31 -0600 Message-ID: <5CD58873020000780022D9FC@prv1-mh.provo.novell.com> References: <20190507151458.29350-1-julien.grall@arm.com> <20190507151458.29350-10-julien.grall@arm.com> <5CD56F04020000780022D80B@prv1-mh.provo.novell.com> <4f29c1a6-308b-eacf-002a-83a402d570b9@arm.com> <5CD57D71020000780022D8ED@prv1-mh.provo.novell.com> <3a359c40-ec6e-db96-b86e-17829c8ccf88@arm.com> <5CD5805F020000780022D939@prv1-mh.provo.novell.com> <9e696d26-0d3b-da9e-7427-f29da07dde7c@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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 1hP6N5-0001SP-0j for xen-devel@lists.xenproject.org; Fri, 10 May 2019 14:19:35 +0000 In-Reply-To: <9e696d26-0d3b-da9e-7427-f29da07dde7c@arm.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Julien Grall Cc: Stefano Stabellini , Wei Liu , Konrad Rzeszutek Wilk , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , oleksandr_tyshchenko@epam.com, xen-devel , "andrii_anisov@epam.com" , Roger Pau Monne List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDEwLjA1LjE5IGF0IDE2OjA0LCA8anVsaWVuLmdyYWxsQGFybS5jb20+IHdyb3RlOgo+ IE9uIDEwLzA1LzIwMTkgMTQ6NDUsIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+PiBPbiAxMC4wNS4x OSBhdCAxNTo0MSwgPGp1bGllbi5ncmFsbEBhcm0uY29tPiB3cm90ZToKPj4+IFRoZSBwb2ludCBo ZXJlLCB3ZSBrZWVwIHdpdGhpbiB0aGUgaHlwZXJ2aXNvciB0aGUgaWRlYSBvZiB3aGF0J3MgdmFs aWQgb3IKPj4+IGludmFsaWQuIFRoaXMgYWxsb3dzIHVzIG1vcmUgZmxleGliaWxpdHkgb24gdGhl IHZhbHVlIGhlcmUgKGltYWdpbmUgd2UgZGVjaWRlIHRvCj4+PiBjaGFuZ2UgdGhlIHZhbHVlIG9m IEdGTl9JTlZBTElEIGluIHRoZSBmdXR1cmUuLi4pLgo+PiAKPj4gRXhhY3RseSwgYW5kIGhlbmNl IElOVkFMSURfR0ZOIHNob3VsZCBub3QgYmVjb21lIHZpc2libGUgdG8gdGhlCj4+IG91dHNpZGUu IEhlbmNlIG15IHJlcXVlc3QgdG8gdXNlIGFuIGFsbC1vbmVzIHZhbHVlIGhlcmUuCj4gSXQgaXMg b25seSB2aXNpYmxlIGlmIHlvdSBwdXQgYW4gZXhhY3QgdmFsdWUgaW4gdGhlIGRvY3VtZW50YXRp b24uIFlvdXIgCj4gc3VnZ2VzdGlvbiBpcyB0byBwdXQgYSBleGFjdGx5IHZhbHVlIGFuZCBJIHdv dWxkIHJhdGhlciBub3Qgc2VlIHRoYXQuCgpJIGRpZCBzcGVjaWZpY2FsbHkgc3VnZ2VzdCB0byBf bm90XyBzdG9yZSBJTlZBTElEX0dGTiBoZXJlLCBidXQgdG8Kc3RvcmUgNjQtYml0IGJpdHMgb2Yg b25lcy4gTm90ZSB0aGUgZGlmZmVyZW5jZSBiZXR3ZWVuIHRoZSB0d28gb24KMzItYml0IEFybS4K Cj4+Pj4+IFdlbGwsIGl0IGF0IGxlYXN0IHRlbGwgeW91IHRoZSBmdW5jdGlvbiBjYW4ndCB3b3Jr LiBTbyBJIHRoaW5rIGl0IGlzIHN0aWxsIG1ha2VzCj4+Pj4+IHNlbnNlIHRvIGhhdmUgaXQuCj4+ Pj4KPj4+PiBJIGRpc2FncmVlLgo+Pj4gWW91IGRpc2FncmVlIGJlY2F1c2UuLi4/Cj4+IAo+PiBC ZWNhdXNlIG9mIHdoYXQgSSd2ZSBzYWlkIGluIG15IGluaXRpYWwgcmVwbHkgKHN0aWxsIHF1b3Rl ZCBhYm92ZSkuCj4gCj4gSSBzdGlsbCBkb24ndCBzZWUgdGhlIHByb2JsZW0gb2YgdW5jb25kaXRp b25hbCBsb2cgbWVzc2FnZS4gSXQgaXMgbm90IHJlYWxseSB0aGUgCj4gZmlyc3QgcGxhY2Ugd2Ug aGF2ZSB0aGF0Lgo+IAo+PiAKPj4+IEkgaG9wZSB5b3UgYXJlIGF3YXJlLCB0aGlzIGlzIHVubGlr ZWx5IGdvaW5nIHRvIGJlIHByaW50ZWQgYXMgdGhlIGNvZGUgc2hvdWxkCj4+PiBub3QgYmUgY2Fs bGVkLgo+PiAKPj4gQVNTRVJUX1VOUkVBQ0hBQkxFKCkgdGhlbj8KPiAKPiBBbmQgc3RpbGwgYXZv aWRpbmcgdGhlIHByaW50az8KClByZWZlcmFibHkgeWVzOyBkZXBlbmRzIG9uIGhvdyBleGFjdGx5 IHlvdSBjb2RlIHRoZSBhc3NlcnRpb24uCklmIHlvdSBmb2xsb3cgdGhlIGlmKCktQVNTRVJUX1VO UkVBQ0hBQkxFKCktcmV0dXJuIHN0eWxlIHdlJ3ZlCmJlZW4gdXNpbmcgZWxzZXdoZXJlLCB0aGVu IG5vIG1hdHRlciBob3cgeW91IHBsYWNlIHRoZSAjZWxzZQpvciAjZW5kaWYgdGhlIHByaW50aygp IHdpbGwgYmUgY29tcGlsZWQgb3V0LgoKSmFuCgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxp c3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9s aXN0aW5mby94ZW4tZGV2ZWw= 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 45C99C04A6B for ; Fri, 10 May 2019 14:19:52 +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 218E02175B for ; Fri, 10 May 2019 14:19:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 218E02175B 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 1hP6N6-0001SU-C1; Fri, 10 May 2019 14:19:36 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hP6N5-0001SP-0j for xen-devel@lists.xenproject.org; Fri, 10 May 2019 14:19:35 +0000 X-Inumbo-ID: a1a01fe1-732e-11e9-8980-bc764e045a96 Received: from prv1-mh.provo.novell.com (unknown [137.65.248.33]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id a1a01fe1-732e-11e9-8980-bc764e045a96; Fri, 10 May 2019 14:19:33 +0000 (UTC) Received: from INET-PRV1-MTA by prv1-mh.provo.novell.com with Novell_GroupWise; Fri, 10 May 2019 08:19:32 -0600 Message-Id: <5CD58873020000780022D9FC@prv1-mh.provo.novell.com> X-Mailer: Novell GroupWise Internet Agent 18.1.0 Date: Fri, 10 May 2019 08:19:31 -0600 From: "Jan Beulich" To: "Julien Grall" References: <20190507151458.29350-1-julien.grall@arm.com> <20190507151458.29350-10-julien.grall@arm.com> <5CD56F04020000780022D80B@prv1-mh.provo.novell.com> <4f29c1a6-308b-eacf-002a-83a402d570b9@arm.com> <5CD57D71020000780022D8ED@prv1-mh.provo.novell.com> <3a359c40-ec6e-db96-b86e-17829c8ccf88@arm.com> <5CD5805F020000780022D939@prv1-mh.provo.novell.com> <9e696d26-0d3b-da9e-7427-f29da07dde7c@arm.com> In-Reply-To: <9e696d26-0d3b-da9e-7427-f29da07dde7c@arm.com> Mime-Version: 1.0 Content-Disposition: inline Subject: Re: [Xen-devel] [PATCH 09/14] xen: Introduce HAS_M2P config and use to protect mfn_to_gmfn call 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: Stefano Stabellini , Wei Liu , Konrad Rzeszutek Wilk , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , oleksandr_tyshchenko@epam.com, xen-devel , "andrii_anisov@epam.com" , Roger Pau Monne Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Message-ID: <20190510141931.ysACByrzNpdr7EpYjNQyL_mTIbW-TcoZEVx56IgCyk8@z> Pj4+IE9uIDEwLjA1LjE5IGF0IDE2OjA0LCA8anVsaWVuLmdyYWxsQGFybS5jb20+IHdyb3RlOgo+ IE9uIDEwLzA1LzIwMTkgMTQ6NDUsIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+PiBPbiAxMC4wNS4x OSBhdCAxNTo0MSwgPGp1bGllbi5ncmFsbEBhcm0uY29tPiB3cm90ZToKPj4+IFRoZSBwb2ludCBo ZXJlLCB3ZSBrZWVwIHdpdGhpbiB0aGUgaHlwZXJ2aXNvciB0aGUgaWRlYSBvZiB3aGF0J3MgdmFs aWQgb3IKPj4+IGludmFsaWQuIFRoaXMgYWxsb3dzIHVzIG1vcmUgZmxleGliaWxpdHkgb24gdGhl IHZhbHVlIGhlcmUgKGltYWdpbmUgd2UgZGVjaWRlIHRvCj4+PiBjaGFuZ2UgdGhlIHZhbHVlIG9m IEdGTl9JTlZBTElEIGluIHRoZSBmdXR1cmUuLi4pLgo+PiAKPj4gRXhhY3RseSwgYW5kIGhlbmNl IElOVkFMSURfR0ZOIHNob3VsZCBub3QgYmVjb21lIHZpc2libGUgdG8gdGhlCj4+IG91dHNpZGUu IEhlbmNlIG15IHJlcXVlc3QgdG8gdXNlIGFuIGFsbC1vbmVzIHZhbHVlIGhlcmUuCj4gSXQgaXMg b25seSB2aXNpYmxlIGlmIHlvdSBwdXQgYW4gZXhhY3QgdmFsdWUgaW4gdGhlIGRvY3VtZW50YXRp b24uIFlvdXIgCj4gc3VnZ2VzdGlvbiBpcyB0byBwdXQgYSBleGFjdGx5IHZhbHVlIGFuZCBJIHdv dWxkIHJhdGhlciBub3Qgc2VlIHRoYXQuCgpJIGRpZCBzcGVjaWZpY2FsbHkgc3VnZ2VzdCB0byBf bm90XyBzdG9yZSBJTlZBTElEX0dGTiBoZXJlLCBidXQgdG8Kc3RvcmUgNjQtYml0IGJpdHMgb2Yg b25lcy4gTm90ZSB0aGUgZGlmZmVyZW5jZSBiZXR3ZWVuIHRoZSB0d28gb24KMzItYml0IEFybS4K Cj4+Pj4+IFdlbGwsIGl0IGF0IGxlYXN0IHRlbGwgeW91IHRoZSBmdW5jdGlvbiBjYW4ndCB3b3Jr LiBTbyBJIHRoaW5rIGl0IGlzIHN0aWxsIG1ha2VzCj4+Pj4+IHNlbnNlIHRvIGhhdmUgaXQuCj4+ Pj4KPj4+PiBJIGRpc2FncmVlLgo+Pj4gWW91IGRpc2FncmVlIGJlY2F1c2UuLi4/Cj4+IAo+PiBC ZWNhdXNlIG9mIHdoYXQgSSd2ZSBzYWlkIGluIG15IGluaXRpYWwgcmVwbHkgKHN0aWxsIHF1b3Rl ZCBhYm92ZSkuCj4gCj4gSSBzdGlsbCBkb24ndCBzZWUgdGhlIHByb2JsZW0gb2YgdW5jb25kaXRp b25hbCBsb2cgbWVzc2FnZS4gSXQgaXMgbm90IHJlYWxseSB0aGUgCj4gZmlyc3QgcGxhY2Ugd2Ug aGF2ZSB0aGF0Lgo+IAo+PiAKPj4+IEkgaG9wZSB5b3UgYXJlIGF3YXJlLCB0aGlzIGlzIHVubGlr ZWx5IGdvaW5nIHRvIGJlIHByaW50ZWQgYXMgdGhlIGNvZGUgc2hvdWxkCj4+PiBub3QgYmUgY2Fs bGVkLgo+PiAKPj4gQVNTRVJUX1VOUkVBQ0hBQkxFKCkgdGhlbj8KPiAKPiBBbmQgc3RpbGwgYXZv aWRpbmcgdGhlIHByaW50az8KClByZWZlcmFibHkgeWVzOyBkZXBlbmRzIG9uIGhvdyBleGFjdGx5 IHlvdSBjb2RlIHRoZSBhc3NlcnRpb24uCklmIHlvdSBmb2xsb3cgdGhlIGlmKCktQVNTRVJUX1VO UkVBQ0hBQkxFKCktcmV0dXJuIHN0eWxlIHdlJ3ZlCmJlZW4gdXNpbmcgZWxzZXdoZXJlLCB0aGVu IG5vIG1hdHRlciBob3cgeW91IHBsYWNlIHRoZSAjZWxzZQpvciAjZW5kaWYgdGhlIHByaW50aygp IHdpbGwgYmUgY29tcGlsZWQgb3V0LgoKSmFuCgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxp c3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9s aXN0aW5mby94ZW4tZGV2ZWw=