From mboxrd@z Thu Jan 1 00:00:00 1970 From: Razvan Cojocaru Subject: Re: [PATCH v1] x86/hvm: Generic instruction re-execution mechanism for execute faults Date: Mon, 13 May 2019 17:15:43 +0300 Message-ID: References: <20181116170412.xrwuun3cqxll22l3@mac> <20181122100554.pyqqa5iw6g27erkv@mac> <7efdfb5e-044b-f2a3-6562-d3468997096a@bitdefender.com> <20181122105821.6ihjcq5dy2lqjj6j@mac> <98f57a8a-288d-45ec-ef01-889fce63eeff@bitdefender.com> <20181122144924.ffy6xxwqugoj24nj@mac> <20181122153756.au3ntxgfqjjhd6sb@mac> <20181122170801.pzdoif2g73aamnmu@mac> <838191050200006B34861ACF@prv1-mh.provo.novell.com> <5BF7C36F02000078001FF3E1@prv1-mh.provo.novell.com> <5CD97A01020000780022E283@prv1-mh.provo.novell.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 1hQBk4-0008C3-Ur for xen-devel@lists.xenproject.org; Mon, 13 May 2019 14:15:48 +0000 In-Reply-To: <5CD97A01020000780022E283@prv1-mh.provo.novell.com> Content-Language: en-US-large List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Jan Beulich Cc: aisaila@bitdefender.com, Andrew Cooper , Andrei LUTAS , xen-devel List-Id: xen-devel@lists.xenproject.org T24gNS8xMy8xOSA1OjA2IFBNLCBKYW4gQmV1bGljaCB3cm90ZToKPj4+PiBPbiAxMy4wNS4xOSBh dCAxNTo1OCwgPHJjb2pvY2FydUBiaXRkZWZlbmRlci5jb20+IHdyb3RlOgo+PiBPbiAxMS8yNy8x OCAxMjo0OSBQTSwgUmF6dmFuIENvam9jYXJ1IHdyb3RlOgo+Pj4+IFdpdGggYSBzdWZmaWNpZW50 bHkgY29tcGxldGUgaW5zbiBlbXVsYXRvciwgc2luZ2xlLXN0ZXBwaW5nIHNob3VsZAo+Pj4+IG5v dCBiZSBuZWVkZWQgYXQgYWxsIGltby4gR3JhbnRlZCB3ZSdyZSBub3QgcXVpdGUgdGhlcmUgeWV0 IHdpdGgKPj4+PiB0aGUgZW11bGF0b3IsIGJ1dCB3ZSd2ZSBtYWRlIHF1aXRlIGEgYml0IG9mIHBy b2dyZXNzLiBBcyBiZWZvcmUsCj4+Pj4gaWYgdGhlcmUgYXJlIHBhcnRpY3VsYXIgaW5zdHJ1Y3Rp b25zIHlvdSBrbm93IG9mIHRoYXQgdGhlIGVtdWxhdG9yCj4+Pj4gZG9lc24ndCBoYW5kbGUgeWV0 LCBwbGVhc2Uga2VlcCBwb2ludGluZyB0aGVzZSBvdXQuIExhc3QgSSBrbm93Cj4+Pj4gd2VyZSBz b21lIEFWWCBtb3ZlIGluc3RydWN0aW9ucywgd2hpY2ggaGF2ZSBsb25nIGJlZW4KPj4+PiBpbXBs ZW1lbnRlZC4KPj4+IFRydWUsIEkgaGF2ZW4ndCBzZWVuIGVtdWxhdG9yIGlzc3VlcyBpbiB0aGF0 IHJlc3BlY3Qgd2l0aCBzdGFnaW5nIC0gdGhlCj4+PiBlbXVsYXRvciBhcHBlYXJzIGxhdGVseSB0 byBiZSBzdWZmaWNpZW50bHkgY29tcGxldGUuIFRoYW5rIHlvdSB2ZXJ5IG11Y2gKPj4+IGZvciB5 b3VyIGhlbHAgYW5kIHN1cHBvcnQgLSB3ZSdsbCBkZWZpbml0ZWx5IHBvaW50IG91dCB1bnN1cHBv cnRlZAo+Pj4gaW5zdHJ1Y3Rpb25zIGlmIHdlIHNwb3Qgc29tZSBhZ2Fpbi4KPj4KPj4gV2UndmUg Y29tZSBhY2Nyb3NzIGEgbmV3IGluc3RydWN0aW9uIHRoYXQgdGhlIGVtdWxhdG9yIGNhbid0IGhh bmRsZSBpbgo+PiBYZW4gNC4xMy11bnN0YWJsZSB0b2RheToKPj4KPj4gdnBtYWRkd2QgeG1tNCx4 bW00LFhNTVdPUkQgUFRSIGRzOjB4NTEzZmJiMjAKPj4KPj4gUGVyaGFwcyB0aGVyZSBhcmUgcGxh bnMgZm9yIHRoaXMgdG8gZ28gaW50byB0aGUgZW11bGF0b3IgYXMgd2VsbD8KPiAKPiBZb3UncmUg a2lkZGluZz8gVGhpcyBpcyBhbHJlYWR5IGluIDQuMTIuMCwgYW5kIGlmIGl0IHdlcmVuJ3QgSSdt IHN1cmUKPiB5b3UncmUgYXdhcmUgdGhlcmUgYXJlIGFib3V0IDQwIG1vcmUgQVZYNTEyIHBhdGNo ZXMgcGVuZGluZwo+IHJldmlldy4KClJpZ2h0LCBJIGRpZCBpbmRlZWQgZm9yZ2V0IGFib3V0IHRo ZSBwZW5kaW5nIHJldmlldyBwYXJ0LCBmb3Igc29tZSAKcmVhc29uIEkgd2FzIHN1cmUgdGhleSBt YWRlIGl0IGluLiBJJ3ZlIGRvdWJsZS1jaGVja2VkIGFuZCB3ZSByZWFsbHkgYXJlIAp1c2luZyA0 LjEzLXVuc3RhYmxlIC0gYnV0IHdlJ3ZlIGFsc28gbWFkZSBjaGFuZ2VzIHRvIHRoZSBlbXVsYXRv ciwgCndvcmtpbmcgb24gdGhlIHNlbmQtdm0tZXZlbnRzLWZyb20tdGhlLWVtdWxhdG9yIHBhdGNo LCBzbyB3ZSdsbCByZXZlcnQgCnRvIGEgcHJpc3RpbmUgc3RhZ2luZyBhbmQgcmV0cnksIHRoZXJl J3MgYSBjaGFuY2UgdGhpcyBoYXBwZW5zIGJlY2F1c2UgCm9mIG91ciBjaGFuZ2VzLgoKV2UnbGwg ZmluZCBvdXQgd2hhdCdzIGdvaW5nIG9uIGV4YWN0bHkuCgoKVGhhbmtzLApSYXp2YW4KCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWls aW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVu cHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw= 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 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 2AE00C04AA7 for ; Mon, 13 May 2019 14:16:03 +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 050BF2146F for ; Mon, 13 May 2019 14:16:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 050BF2146F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bitdefender.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 1hQBk6-0008CC-A7; Mon, 13 May 2019 14:15:50 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hQBk4-0008C3-Ur for xen-devel@lists.xenproject.org; Mon, 13 May 2019 14:15:48 +0000 X-Inumbo-ID: 9a3d891e-7589-11e9-8980-bc764e045a96 Received: from mx01.bbu.dsd.mx.bitdefender.com (unknown [91.199.104.161]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTPS id 9a3d891e-7589-11e9-8980-bc764e045a96; Mon, 13 May 2019 14:15:48 +0000 (UTC) Received: from smtp.bitdefender.com (smtp02.buh.bitdefender.net [10.17.80.76]) by mx01.bbu.dsd.mx.bitdefender.com (Postfix) with ESMTPS id 7F0C3305D490; Mon, 13 May 2019 17:15:46 +0300 (EEST) Received: from [10.10.196.90] (unknown [195.210.5.22]) by smtp.bitdefender.com (Postfix) with ESMTPSA id 6D8E5304F234; Mon, 13 May 2019 17:15:46 +0300 (EEST) To: Jan Beulich References: <20181116170412.xrwuun3cqxll22l3@mac> <20181122100554.pyqqa5iw6g27erkv@mac> <7efdfb5e-044b-f2a3-6562-d3468997096a@bitdefender.com> <20181122105821.6ihjcq5dy2lqjj6j@mac> <98f57a8a-288d-45ec-ef01-889fce63eeff@bitdefender.com> <20181122144924.ffy6xxwqugoj24nj@mac> <20181122153756.au3ntxgfqjjhd6sb@mac> <20181122170801.pzdoif2g73aamnmu@mac> <838191050200006B34861ACF@prv1-mh.provo.novell.com> <5BF7C36F02000078001FF3E1@prv1-mh.provo.novell.com> <5CD97A01020000780022E283@prv1-mh.provo.novell.com> From: Razvan Cojocaru Message-ID: Date: Mon, 13 May 2019 17:15:43 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <5CD97A01020000780022E283@prv1-mh.provo.novell.com> Content-Language: en-US-large Subject: Re: [Xen-devel] [PATCH v1] x86/hvm: Generic instruction re-execution mechanism for execute faults 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: aisaila@bitdefender.com, Andrew Cooper , Andrei LUTAS , xen-devel Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="UTF-8"; format="flowed" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Message-ID: <20190513141543.pk0qO-APJvx0R9YKaeBl48eudJXI70IjaOvk-CbvOUk@z> T24gNS8xMy8xOSA1OjA2IFBNLCBKYW4gQmV1bGljaCB3cm90ZToKPj4+PiBPbiAxMy4wNS4xOSBh dCAxNTo1OCwgPHJjb2pvY2FydUBiaXRkZWZlbmRlci5jb20+IHdyb3RlOgo+PiBPbiAxMS8yNy8x OCAxMjo0OSBQTSwgUmF6dmFuIENvam9jYXJ1IHdyb3RlOgo+Pj4+IFdpdGggYSBzdWZmaWNpZW50 bHkgY29tcGxldGUgaW5zbiBlbXVsYXRvciwgc2luZ2xlLXN0ZXBwaW5nIHNob3VsZAo+Pj4+IG5v dCBiZSBuZWVkZWQgYXQgYWxsIGltby4gR3JhbnRlZCB3ZSdyZSBub3QgcXVpdGUgdGhlcmUgeWV0 IHdpdGgKPj4+PiB0aGUgZW11bGF0b3IsIGJ1dCB3ZSd2ZSBtYWRlIHF1aXRlIGEgYml0IG9mIHBy b2dyZXNzLiBBcyBiZWZvcmUsCj4+Pj4gaWYgdGhlcmUgYXJlIHBhcnRpY3VsYXIgaW5zdHJ1Y3Rp b25zIHlvdSBrbm93IG9mIHRoYXQgdGhlIGVtdWxhdG9yCj4+Pj4gZG9lc24ndCBoYW5kbGUgeWV0 LCBwbGVhc2Uga2VlcCBwb2ludGluZyB0aGVzZSBvdXQuIExhc3QgSSBrbm93Cj4+Pj4gd2VyZSBz b21lIEFWWCBtb3ZlIGluc3RydWN0aW9ucywgd2hpY2ggaGF2ZSBsb25nIGJlZW4KPj4+PiBpbXBs ZW1lbnRlZC4KPj4+IFRydWUsIEkgaGF2ZW4ndCBzZWVuIGVtdWxhdG9yIGlzc3VlcyBpbiB0aGF0 IHJlc3BlY3Qgd2l0aCBzdGFnaW5nIC0gdGhlCj4+PiBlbXVsYXRvciBhcHBlYXJzIGxhdGVseSB0 byBiZSBzdWZmaWNpZW50bHkgY29tcGxldGUuIFRoYW5rIHlvdSB2ZXJ5IG11Y2gKPj4+IGZvciB5 b3VyIGhlbHAgYW5kIHN1cHBvcnQgLSB3ZSdsbCBkZWZpbml0ZWx5IHBvaW50IG91dCB1bnN1cHBv cnRlZAo+Pj4gaW5zdHJ1Y3Rpb25zIGlmIHdlIHNwb3Qgc29tZSBhZ2Fpbi4KPj4KPj4gV2UndmUg Y29tZSBhY2Nyb3NzIGEgbmV3IGluc3RydWN0aW9uIHRoYXQgdGhlIGVtdWxhdG9yIGNhbid0IGhh bmRsZSBpbgo+PiBYZW4gNC4xMy11bnN0YWJsZSB0b2RheToKPj4KPj4gdnBtYWRkd2QgeG1tNCx4 bW00LFhNTVdPUkQgUFRSIGRzOjB4NTEzZmJiMjAKPj4KPj4gUGVyaGFwcyB0aGVyZSBhcmUgcGxh bnMgZm9yIHRoaXMgdG8gZ28gaW50byB0aGUgZW11bGF0b3IgYXMgd2VsbD8KPiAKPiBZb3UncmUg a2lkZGluZz8gVGhpcyBpcyBhbHJlYWR5IGluIDQuMTIuMCwgYW5kIGlmIGl0IHdlcmVuJ3QgSSdt IHN1cmUKPiB5b3UncmUgYXdhcmUgdGhlcmUgYXJlIGFib3V0IDQwIG1vcmUgQVZYNTEyIHBhdGNo ZXMgcGVuZGluZwo+IHJldmlldy4KClJpZ2h0LCBJIGRpZCBpbmRlZWQgZm9yZ2V0IGFib3V0IHRo ZSBwZW5kaW5nIHJldmlldyBwYXJ0LCBmb3Igc29tZSAKcmVhc29uIEkgd2FzIHN1cmUgdGhleSBt YWRlIGl0IGluLiBJJ3ZlIGRvdWJsZS1jaGVja2VkIGFuZCB3ZSByZWFsbHkgYXJlIAp1c2luZyA0 LjEzLXVuc3RhYmxlIC0gYnV0IHdlJ3ZlIGFsc28gbWFkZSBjaGFuZ2VzIHRvIHRoZSBlbXVsYXRv ciwgCndvcmtpbmcgb24gdGhlIHNlbmQtdm0tZXZlbnRzLWZyb20tdGhlLWVtdWxhdG9yIHBhdGNo LCBzbyB3ZSdsbCByZXZlcnQgCnRvIGEgcHJpc3RpbmUgc3RhZ2luZyBhbmQgcmV0cnksIHRoZXJl J3MgYSBjaGFuY2UgdGhpcyBoYXBwZW5zIGJlY2F1c2UgCm9mIG91ciBjaGFuZ2VzLgoKV2UnbGwg ZmluZCBvdXQgd2hhdCdzIGdvaW5nIG9uIGV4YWN0bHkuCgoKVGhhbmtzLApSYXp2YW4KCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWls aW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVu cHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=