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=-5.5 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 2012FC47404 for ; Thu, 12 Sep 2019 12:01:21 +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 EFA692081B for ; Thu, 12 Sep 2019 12:01:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EFA692081B 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 1i8NmY-00069q-Vv; Thu, 12 Sep 2019 12:01:02 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1i8NmX-00068v-GL for xen-devel@lists.xenproject.org; Thu, 12 Sep 2019 12:01:01 +0000 X-Inumbo-ID: fca2cc6a-d554-11e9-978d-bc764e2007e4 Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id fca2cc6a-d554-11e9-978d-bc764e2007e4; Thu, 12 Sep 2019 12:01:00 +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 F3604AF59; Thu, 12 Sep 2019 12:00:59 +0000 (UTC) To: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= References: <30619001-ca6c-0450-a0bb-4d71687b281a@suse.com> <20190912114502.ietnlugtxmazfgzi@Air-de-Roger> From: Jan Beulich Message-ID: <35893b6b-7b2d-882e-462e-6b93fb6c9399@suse.com> Date: Thu, 12 Sep 2019 14:01:00 +0200 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: <20190912114502.ietnlugtxmazfgzi@Air-de-Roger> Content-Language: en-US Subject: Re: [Xen-devel] [PATCH 5/9] x86/HVM: refuse CR3 loads with reserved (upper) bits set 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 , AndrewCooper , Wei Liu , "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" T24gMTIuMDkuMjAxOSAxMzo0NSwgUm9nZXIgUGF1IE1vbm7DqSAgd3JvdGU6Cj4gT24gV2VkLCBT ZXAgMTEsIDIwMTkgYXQgMDU6MjQ6NDFQTSArMDIwMCwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+IFdo aWxlIGJpdHMgMTEgYW5kIGJlbG93IGFyZSwgaWYgbm90IHVzZWQgZm9yIG90aGVyIHB1cnBvc2Vz LCByZXNlcnZlZAo+PiBidXQgaWdub3JlZCwgYml0cyBiZXlvbmQgcGh5c2ljYWwgYWRkcmVzcyB3 aWR0aCBhcmUgc3VwcG9zZWQgdG8gcmFpc2UKPj4gZXhjZXB0aW9ucyAoYXQgbGVhc3QgaW4gdGhl IG5vbi1uZXN0ZWQgY2FzZTsgSSdtIG5vdCBjb252aW5jZWQgdGhlCj4+IGN1cnJlbnQgbmVzdGVk IFNWTS9WTVggYmVoYXZpb3Igb2YgcmFpc2luZyAjR1AoMCkgaGVyZSBpcyBjb3JyZWN0LCBidXQK Pj4gdGhhdCdzIG5vdCB0aGUgc3ViamVjdCBvZiB0aGlzIGNoYW5nZSkuCj4+Cj4+IEludHJvZHVj ZSBjdXJyZCBhcyBhIGxvY2FsIHZhcmlhYmxlLCBhbmQgcmVwbGFjZSBvdGhlciB2LT5kb21haW4K Pj4gaW5zdGFuY2VzIGF0IHRoZSBzYW1lIHRpbWUuCj4+Cj4+IFNpZ25lZC1vZmYtYnk6IEphbiBC ZXVsaWNoIDxqYmV1bGljaEBzdXNlLmNvbT4KPiAKPiBMR1RNLCBqdXN0IHR3byBjb21tZW50cyB3 aGljaCBhcmUgbm90IHJlbGF0ZWQgdG8gZnVuY3Rpb25hbGl0eSwgc286Cj4gCj4gUmV2aWV3ZWQt Ynk6IFJvZ2VyIFBhdSBNb25uw6kgPHJvZ2VyLnBhdUBjaXRyaXguY29tPgoKVGhhbmtzLgoKPj4g LS0tIGEveGVuL2FyY2gveDg2L2h2bS9odm0uYwo+PiArKysgYi94ZW4vYXJjaC94ODYvaHZtL2h2 bS5jCj4+IEBAIC0xMDA0LDYgKzEwMDQsMTMgQEAgc3RhdGljIGludCBodm1fbG9hZF9jcHVfY3R4 dChzdHJ1Y3QgZG9tYQo+PiAgICAgICAgICByZXR1cm4gLUVJTlZBTDsKPj4gICAgICB9Cj4+ICAK Pj4gKyAgICBpZiAoIGN0eHQuY3IzICYgfigoMVVMIDw8IGQtPmFyY2guY3B1aWQtPmV4dGQubWF4 cGh5c2FkZHIpIC0gMSkgKQo+PiArICAgIHsKPj4gKyAgICAgICAgcHJpbnRrKFhFTkxPR19HX0VS UiAiSFZNJWQgcmVzdG9yZTogYmFkIENSMyAlIyIgUFJJeDY0ICJcbiIsCj4gCj4gZ3ByaW50ayB3 b3VsZCBiZSBtb3JlIG5hdHVyYWwgaGVyZSBJTU8uCgpJIGRvbid0IHRoaW5rIHNvLCBubyAtIHRo ZSAlcHYgdmFsdWUgYWRkaXRpb25hbGx5IGdldHRpbmcgbG9nZ2VkCmJ5IGdwcmludGsoKSBoYXMg bm8gcmVhbCB1c2UgaW4gdGhpcyBjYXNlLgoKPj4gQEAgLTIyOTAsMTAgKzIyOTcsMTkgQEAgaW50 IGh2bV9zZXRfY3IwKHVuc2lnbmVkIGxvbmcgdmFsdWUsIGJvbwo+PiAgaW50IGh2bV9zZXRfY3Iz KHVuc2lnbmVkIGxvbmcgdmFsdWUsIGJvb2wgbm9mbHVzaCwgYm9vbCBtYXlfZGVmZXIpCj4+ICB7 Cj4+ICAgICAgc3RydWN0IHZjcHUgKnYgPSBjdXJyZW50Owo+PiArICAgIHN0cnVjdCBkb21haW4g KmN1cnJkID0gdi0+ZG9tYWluOwo+PiAgICAgIHN0cnVjdCBwYWdlX2luZm8gKnBhZ2U7Cj4+ICAg ICAgdW5zaWduZWQgbG9uZyBvbGQgPSB2LT5hcmNoLmh2bS5ndWVzdF9jclszXTsKPj4gIAo+PiAt ICAgIGlmICggbWF5X2RlZmVyICYmIHVubGlrZWx5KHYtPmRvbWFpbi0+YXJjaC5tb25pdG9yLndy aXRlX2N0cmxyZWdfZW5hYmxlZCAmCj4+ICsgICAgaWYgKCB2YWx1ZSAmIH4oKDFVTCA8PCBjdXJy ZC0+YXJjaC5jcHVpZC0+ZXh0ZC5tYXhwaHlzYWRkcikgLSAxKSApCj4gCj4gSSB3b3VsZCBjb25z aWRlciBpbnRyb2R1Y2luZyBhIG1hY3JvL2lubGluZSBoZWxwZXIgZm9yIHRoaXMsIHNpbmNlCj4g aXQncyBhbHJlYWR5IHVzZWQgdHdpY2UgaW4gdGhpcyBwYXRjaC4KCldlbGwsIHllcywgSSBjb3Vs ZCBkbyB0aGlzIGluIGEgcHJlcmVxIHBhdGNoLCB0YWtpbmcgY2FyZSBvZiB0aGUKc2FtZSBleHBy ZXNzaW9uIGluIGd1ZXN0X3B0LmguIEdyZXAtaW5nIHRoZSB0cmVlIEkgc2VlIGEgYmV0dGVyCndh eSBvZiBkb2luZyB0aGlzIHRob3VnaCAoaW4gcGFnaW5nLmgpLCBhbmQgaGVuY2UgSSBndWVzcyBJ J2xsCnN3aXRjaCBib3RoIHRvCgogICAgaWYgKCA8VkFMPiA+PiBjdXJyZC0+YXJjaC5jcHVpZC0+ ZXh0ZC5tYXhwaHlzYWRkciApCgpJJ2xsIHRha2UgaXQgdGhhdCB0aGlzIHdvdWxkbid0IGludmFs aWRhdGUgeW91IFItYi4KCkphbgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJv amVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hl bi1kZXZlbA==