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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 4C556C8300A for ; Thu, 30 Apr 2020 13:18:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2A02120656 for ; Thu, 30 Apr 2020 13:18:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726837AbgD3NSP (ORCPT ); Thu, 30 Apr 2020 09:18:15 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:43915 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726743AbgD3NSO (ORCPT ); Thu, 30 Apr 2020 09:18:14 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-8-eqYfVa2uOue2i3Uoab9kpQ-1; Thu, 30 Apr 2020 14:18:10 +0100 X-MC-Unique: eqYfVa2uOue2i3Uoab9kpQ-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 30 Apr 2020 14:18:10 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Thu, 30 Apr 2020 14:18:10 +0100 From: David Laight To: 'Paolo Bonzini' , 'Jim Mattson' CC: 'LKML' , 'kvm list' , 'Sean Christopherson' , 'Joerg Roedel' , "'everdox@gmail.com'" Subject: RE: [PATCH] KVM: x86: handle wrap around 32-bit address space Thread-Topic: [PATCH] KVM: x86: handle wrap around 32-bit address space Thread-Index: AQHWHPQJ/975q5rp/UiOQx/+1A4bJqiPy+vwgAABnFCAAcI2gIAAFr9g Date: Thu, 30 Apr 2020 13:18:10 +0000 Message-ID: <47a766451de248718d2a9bec47dda86e@AcuMS.aculab.com> References: <20200427165917.31799-1-pbonzini@redhat.com> <91c76eb0edcd4f1a9d5bc541d35f8ade@AcuMS.aculab.com> <2f471fbc-99fb-1a85-8f9f-c276c897f518@redhat.com> In-Reply-To: <2f471fbc-99fb-1a85-8f9f-c276c897f518@redhat.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogUGFvbG8gQm9uemluaSA8cGJvbnppbmlAcmVkaGF0LmNvbT4NCj4gU2VudDogMzAgQXBy aWwgMjAyMCAxMzo0NQ0KPiBPbiAyOS8wNC8yMCAxMDo1NiwgRGF2aWQgTGFpZ2h0IHdyb3RlOg0K PiA+Pj4+ICsgICAgICAgICAgICAgICBpZiAodW5saWtlbHkoKChyaXAgXiBvcmlnX3JpcCkgPj4g MzEpID09IDMpICYmICFpc182NF9iaXRfbW9kZSh2Y3B1KSkNCj4gPj4gSXNuJ3QgdGhlIG1vcmUg b2J2aW91czoNCj4gPj4gCWlmICgoKHJpcCBeIG9yaWdfcmlwKSAmIDF1bGwgPDwgMzIpIC4uLg0K PiA+PiBlcXVpdmFsZW50Pw0KPiANCj4gVGhpcyBvbmUgd291bGQgbm90IChpdCB3b3VsZCBhbHNv IGRldGVjdCBjYXJyeSBvbiBoaWdoIG1lbW9yeSBhZGRyZXNzZXMsDQo+IG5vdCBqdXN0IDB4N2Zm ZmZmZmYgdG8gMHg4MDAwMDAwMCkuLi4NCg0KU28gd2lsbCB0aGUgcHJvcG9zZWQgb25lIGhhbGYg dGhlIHRpbWUuDQpJZiAob3JpZ19yaXAgJiAxIDw8IDMyKSBpcyB6ZXJvIHRoZSBoaWdoIGJpdHMg YXJlIGFsbCB1bmNoYW5nZWQNCmFuZCBjYW5jZWwgb3V0Lg0KDQo+ID4gQWN0dWFsbHkgbm90IGV2 ZW4gYmVpbmcgY2xldmVyLCBob3cgYWJvdXQ6DQo+ID4gCWlmIChvcmlnX3JpcCA8ICgxdWxsIDw8 IDMyKSAmJiB1bmxpa2VseShyaXAgPj0gKDF1bGwgPDwgMzIpKSAmJiAuLi4NCj4gDQo+IC4uLiBi dXQgeWVzIHRoaXMgb25lIHdvdWxkIGJlIGVxdWl2YWxlbnQuDQoNCklmIHN1YiA0RyBhZGRyZXNz ZXMgYXJlIGxpa2VseSBvbiA2NGJpdCB5b3UgbWF5IHdhbnQgdG8gZG86DQoJaWYgKHVubGlrZWx5 KChyaXAgXiBvcmlnX3JpcCkgJiAoMXVsbCA8PCAzMikpICYmIG9yaWdfcmlwIDwgKDF1bGwgPDwg MzIpKSAmJiAuLi4NCm9yIHVubGlrZWx5KChyaXAgXiBvcmlnX3JpcCkgPj4gMzIpDQoNCkkgdGhp bmsgeW91IGFsd2F5cyB3YW50IHVubGlrZWx5KGEpICYmIGIgcmF0aGVyIHRoYW4gdW5saWtlbHko YSAmJiBiKS4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJh bWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0 cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==