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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 BAF2ACA9EB5 for ; Mon, 4 Nov 2019 12:54:48 +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 7F76820B7C for ; Mon, 4 Nov 2019 12:54:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7F76820B7C 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 1iRbsK-0001Rc-Ri; Mon, 04 Nov 2019 12:54:28 +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 1iRbsK-0001RX-1A for xen-devel@lists.xenproject.org; Mon, 04 Nov 2019 12:54:28 +0000 X-Inumbo-ID: 3ac6eaaf-ff02-11e9-a177-12813bfff9fa Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 3ac6eaaf-ff02-11e9-a177-12813bfff9fa; Mon, 04 Nov 2019 12:54:26 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 75790ABE9; Mon, 4 Nov 2019 12:54:25 +0000 (UTC) To: Andrew Cooper References: <1e714166-ffeb-06a1-9caf-412eb040ac5a@suse.com> <005a7254-aae8-ec7c-6e65-9dfe06803208@suse.com> <6e358e65-2efe-9e4c-01e9-d9e317c6dfbc@amazon.com> <6b27b379-f996-4b33-bf24-178bec5ff6b9@citrix.com> From: Jan Beulich Message-ID: <51356dc2-abac-da21-f656-01cc53b27bae@suse.com> Date: Mon, 4 Nov 2019 13:54:30 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Subject: Re: [Xen-devel] [PATCH 2/2] x86: explicitly disallow guest access to PPIN 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: xen-devel@lists.xenproject.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMDEuMTEuMjAxOSAxOTo0OSwgQW5kcmV3IENvb3BlciB3cm90ZToKPiBPbiAwMS8xMS8yMDE5 IDE0OjI5LCBBbmRyZXcgQ29vcGVyIHdyb3RlOgo+PiBPbiAwMS8xMS8yMDE5IDE0OjAwLCBFc2xh bSBFbG5pa2V0eSB3cm90ZToKPj4+IFRoYW5rcyBmb3IgdGhpcyBzZXJpZXMsIEphbi4KPj4+Cj4+ PiBPbiAzMC4xMC4xOSAxMTozOSwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4gVG8gZnVsZmlsbCB0 aGUgInByb3RlY3RlZCIgaW4gaXRzIG5hbWUsIGRvbid0IGxldCB0aGUgcmVhbCBoYXJkd2FyZQo+ Pj4+IHZhbHVlcyAic2hpbmUgdGhyb3VnaCIuIFJlcG9ydCBhIGNvbnRyb2wgcmVnaXN0ZXIgdmFs dWUgZXhwcmVzc2luZyB0aGlzLgo+Pj4+Cj4+Pj4gU2lnbmVkLW9mZi1ieTogSmFuIEJldWxpY2gg PGpiZXVsaWNoQHN1c2UuY29tPgo+Pj4+IC0tLQo+Pj4+IFRCRDogRG8gd2Ugd2FudCB0byBwZXJt aXQgRG9tMCBhY2Nlc3M/Cj4+PiBJdCB3b3VsZCBiZSBuaWNlIHRvIGdpdmUgYW4gYWRtaW5pc3Ry YXRvciBhIHdheSB0byBnZXQgUFBJTiBvdXRzaWRlCj4+PiB0aGUgY29udGV4dCBvZiBhbiBNQ0Ug d2hlbiBuZWVkZWQuCj4+IEkgc3VwcG9zZSB0aGlzIGlzIGEgcmVhc29uYWJsZSByZXF1ZXN0LsKg IFdlIHNob3VsZCBleHBvc2UgaXQgdG8gdGhlCj4+IGhhcmR3YXJlIGRvbWFpbi4KPiAKPiBBY3R1 YWxseSBvbiBmdXJ0aGVyIHRob3VnaHRzLCBJJ20gZ29pbmcgdG8gYmFja3RyYWNrIHNsaWdodGx5 Lgo+IAo+IEl0IGlzIHJlYXNvbmFibGUgdG8gZ2l2ZSB0byBkb20wLCBidXQgaXQgaXMgbm90IHJl YXNvbmFibGUgdG8gcHJvdmlkZSBpdAo+IGJ5IGVtdWxhdGluZyB0aGUgTVNSIGludGVyZmFjZS7C oCBUaGUgcHJvYmxlbSBpcyB0aGF0IGRvbTAncyByZXN1bHQgaXMKPiBzZW5zaXRpdmUgdG8gd2hl cmUgaXQgaGFwcGVucyB0byBiZSBzY2hlZHVsZWQuCj4gCj4gVGhlIG9ubHkgc2FuZSB3YXkgb2Yg bGV0dGluZyBkb20wIGhhdmUgYWNjZXNzIGlzIHZpYSBhIGh5cGVyY2FsbCB3aGljaAo+IHJldHVy bnMgIm5vIFBQSU4iIG9yIGFsbCBzb2NrZXRzIGluZm9ybWF0aW9uIGluIG9uZSBnbywgaXJyZXNw ZWN0aXZlIG9mCj4gd2hpY2ggc29ja2V0IHRoZSBjdXJyZW50IHZjcHUgaGFwcGVucyB0byBiZSBl eGVjdXRpbmcgb24uCj4gCj4gVGhpcyBsZWF2ZXMgdXMgYmFjayBpbiB0aGUgKHN1YnN0YW50aWFs bHkgZWFzaWVyKSBwb3NpdGlvbiBvZiBub3QgaGF2aW5nCj4gdG8gdmlydHVhbGlzZSB0aGUgTVNS IGludGVyZmFjZSB0byBiZWdpbiB3aXRoLgoKUmlnaHQsIGhlbmNlIG15IHF1ZXN0aW9uIHdoZXRo ZXIgdG8gbWFrZSB0aGlzIGEgbmV3IHN5c2N0bCBzdWJvcCwKb3Igd2hldGhlciB0byBwZXJtaXQg cmVhZGluZyBvZiB0aGlzIG9uZSBNU1IgdmlhIFhFTlBGX3Jlc291cmNlX29wCihvciB5ZXQgc29t ZSBvdGhlciBtZWNoYW5pc20pLiBQZXJzb25hbGx5IEknZCBnbyB0aGUKWEVOUEZfcmVzb3VyY2Vf b3Agcm91dGUuCgpKYW4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qu b3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2 ZWw=