Received: by 2002:a6b:500f:0:0:0:0:0 with SMTP id e15csp6000745iob; Tue, 10 May 2022 08:15:31 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyUydfgq5h4zJ0IA8IVUvjsUnhHf3qGev2/xIvkAbQ+RcxlXiA5oYvnWW/pzp89agtAoYCx X-Received: by 2002:a17:902:ea53:b0:15b:1bb8:ac9e with SMTP id r19-20020a170902ea5300b0015b1bb8ac9emr20546728plg.45.1652195731487; Tue, 10 May 2022 08:15:31 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1652195731; cv=none; d=google.com; s=arc-20160816; b=iW8u9BNUK/imomZxlNdACEDZLKnBuys/ydRStb3sWKvv2Q/QWxCAUtJfTGbNEiWpWm Vp+nB4J+fJsufwPngoBte5myZWx7Lv2EyfaXzNlkL3sMSxqTUxJQu0Gb0vkHpvbPKvt+ m2pQEtt7cjyL5L86FoGVDKYyWKnpCfBMXOq6XwU5QtjpstGzsGd910z/40+Eu+OzM4zH vBQhXxy7gYjf3kU2XffB8p6xvmDlgXJiw5f6TgUMGeqdQGTjvCayGiRfXfHrToT3XU4V qn/aXGZt+AG0KfP8YuLuFBhJm/8z2i+WQ9zOkke1SV4VWIbPlY4+02RZREHgBn/7ye4h AQ8A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:in-reply-to:from :references:cc:to:subject:user-agent:mime-version:date:message-id :dkim-signature; bh=AVZzSx7m2KvPuGPmt5Zx8G5rV5fa+SEexHw6KVQP/1c=; b=jWmkqXsZO6Zo916MGbvrdhCqTCjvo64EigTDirc9J4LomEQ0kgmUyOmiM8YOVx3Dbs j3Aoy3ljT3AGPq7PeWiaDIx28t7V/rrXm00hbVILvtm+guPQjYbl9vE5KdYaxnvSXxxc /SXppUuOh2uk5uv6YM+NEuOtzlVlZqBQovCboe71QqsGlU0YF3FOjnggQxMV3RM1e3EK Bb9S3AIm9gN1tPWvX+FF3syubdVDQOpoHYozKbL+o9RZpxHISwebzbBU21MT9lj2E+er +8UmN2+Vd8Fwm35dyCj8ddrTjsBla0lgxVeN5T4QoATXzWVRTxw2gXN+mIP2zwfRKuMt N3YQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amazon.com header.s=amazon201209 header.b=F3pQHXs7; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amazon.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id a20-20020a656054000000b003aad07ba5c7si17411549pgp.13.2022.05.10.08.15.15; Tue, 10 May 2022 08:15:31 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@amazon.com header.s=amazon201209 header.b=F3pQHXs7; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amazon.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238494AbiEJMiI (ORCPT + 99 others); Tue, 10 May 2022 08:38:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237901AbiEJMiF (ORCPT ); Tue, 10 May 2022 08:38:05 -0400 Received: from smtp-fw-33001.amazon.com (smtp-fw-33001.amazon.com [207.171.190.10]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C4B02A7C3C; Tue, 10 May 2022 05:34:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1652186042; x=1683722042; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=AVZzSx7m2KvPuGPmt5Zx8G5rV5fa+SEexHw6KVQP/1c=; b=F3pQHXs7oWqoTIjQbuzfUu7COfBi76dXc4CSktQm8nPf3JegokRekWSs 7j0kt+AKClr8PRrOAzz2fYpTCPLzae+Ki8lQo2vlLBcAf3Dy2RapfeSYm oFsxVJAZN9rd0xyDVX/Z72j+BMxUfKU65fplgdDeeXigZ/NQDzdZD8Q94 8=; X-IronPort-AV: E=Sophos;i="5.91,214,1647302400"; d="scan'208";a="193936383" Received: from iad12-co-svc-p1-lb1-vlan2.amazon.com (HELO email-inbound-relay-pdx-2b-22c2b493.us-west-2.amazon.com) ([10.43.8.2]) by smtp-border-fw-33001.sea14.amazon.com with ESMTP; 10 May 2022 12:33:46 +0000 Received: from EX13MTAUWC001.ant.amazon.com (pdx1-ws-svc-p6-lb9-vlan2.pdx.amazon.com [10.236.137.194]) by email-inbound-relay-pdx-2b-22c2b493.us-west-2.amazon.com (Postfix) with ESMTPS id 37BF941C44; Tue, 10 May 2022 12:33:45 +0000 (UTC) Received: from EX13D20UWC001.ant.amazon.com (10.43.162.244) by EX13MTAUWC001.ant.amazon.com (10.43.162.135) with Microsoft SMTP Server (TLS) id 15.0.1497.32; Tue, 10 May 2022 12:33:45 +0000 Received: from [0.0.0.0] (10.43.161.183) by EX13D20UWC001.ant.amazon.com (10.43.162.244) with Microsoft SMTP Server (TLS) id 15.0.1497.32; Tue, 10 May 2022 12:33:42 +0000 Message-ID: <5ad0f302-c1e1-b400-c3f3-a97c1cd443e8@amazon.com> Date: Tue, 10 May 2022 14:33:40 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.9.0 Subject: Re: [PATCH v2] KVM: PPC: Book3S PR: Enable MSR_DR for switch_mmu_context() To: Christophe Leroy , "kvm@vger.kernel.org" CC: "linuxppc-dev@lists.ozlabs.org" , "linux-kernel@vger.kernel.org" , Paul Mackerras , Benjamin Herrenschmidt , Michael Ellerman , Matt Evans , "stable@vger.kernel.org" References: <20220510111809.15987-1-graf@amazon.com> From: Alexander Graf In-Reply-To: X-Originating-IP: [10.43.161.183] X-ClientProxiedBy: EX13D03UWA002.ant.amazon.com (10.43.160.144) To EX13D20UWC001.ant.amazon.com (10.43.162.244) Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Transfer-Encoding: base64 X-Spam-Status: No, score=-5.5 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, NICE_REPLY_A,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ck9uIDEwLjA1LjIyIDEzOjMxLCBDaHJpc3RvcGhlIExlcm95IHdyb3RlOgo+IExlIDEwLzA1LzIw MjIgw6AgMTM6MTgsIEFsZXhhbmRlciBHcmFmIGEgw6ljcml0IDoKPj4gQ29tbWl0IDg2Mzc3MWEy OGUyNyAoInBvd2VycGMvMzJzOiBDb252ZXJ0IHN3aXRjaF9tbXVfY29udGV4dCgpIHRvIEMiKQo+ PiBtb3ZlZCB0aGUgc3dpdGNoX21tdV9jb250ZXh0KCkgdG8gQy4gV2hpbGUgaW4gcHJpbmNpcGxl IGEgZ29vZCBpZGVhLCBpdAo+PiBtZWFudCB0aGF0IHRoZSBmdW5jdGlvbiBub3cgdXNlcyB0aGUg c3RhY2suIFRoZSBzdGFjayBpcyBub3QgYWNjZXNzaWJsZQo+PiBmcm9tIHJlYWwgbW9kZSB0aG91 Z2guCj4+Cj4+IFNvIHRvIGtlZXAgY2FsbGluZyB0aGUgZnVuY3Rpb24sIGxldCdzIHR1cm4gb24g TVNSX0RSIHdoaWxlIHdlIGNhbGwgaXQuCj4+IFRoYXQgd2F5LCBhbGwgcG9pbnRlciByZWZlcmVu Y2VzIHRvIHRoZSBzdGFjayBhcmUgaGFuZGxlZCB2aXJ0dWFsbHkuCj4gSXMgdGhlIHN5c3RlbSBy ZWFkeSB0byBoYW5kbGUgYSBEU0kgaW4gY2FzZSB0aGUgc3RhY2sgaXMgbm90IG1hcHBlZCA/CgoK QSBEU0kgaXRzZWxmIHdpbGwgYmUgYW4gaW50ZXJydXB0IGFnYWluIHdoaWNoIHdpbGwgaW4gdHVy biBkZXN0cm95IHRoZSAKU1BSRyB0aGF0IHdlJ3JlIHNhdmluZy4gR3Vlc3MgSSB3YXMgdHJ5aW5n IHRvIGJlIHRvbyBzbWFydCA6KS4gSSdsbCB1c2UgCk1hdHQncyBvcmlnaW5hbCBzdWdnZXN0aW9u IGFuZCBqdXN0IHB1dCBpdCBvbiB0aGUgc3RhY2suCgoKPj4gSW4gYWRkaXRpb24sIG1ha2Ugc3Vy ZSB0byBzYXZlL3Jlc3RvcmUgcjEyIGluIGFuIFNQUkcsIGFzIGl0IG1heSBnZXQKPj4gY2xvYmJl cmVkIGJ5IHRoZSBDIGZ1bmN0aW9uLgo+Pgo+PiBSZXBvcnRlZC1ieTogTWF0dCBFdmFucyA8bWF0 dEBvemxhYnMub3JnPgo+PiBGaXhlczogODYzNzcxYTI4ZTI3ICgicG93ZXJwYy8zMnM6IENvbnZl cnQgc3dpdGNoX21tdV9jb250ZXh0KCkgdG8gQyIpCj4gT29wcywgc29ycnkgZm9yIHRoYXQuIEkg ZGlkbid0IHJlYWxpc2UgdGhhdCB0aGVyZSB3YXMgb3RoZXIgY2FsbGVycyB0bwo+IHN3aXRjaF9t bXVfY29udGV4dCgpIHRoYW4gc3dpdGNoX21tX2lycXNfb2ZmKCkuCgoKTm8gd29ycmllcywgdGhl IGNvbXBpbGVkIEMgdmVyc2lvbiBsb29rcyBhIGxvdCBuaWNlciB0aGFuIHRoZSBwcmV2aW91cyAK YXNtIG9uZSAtIGFuZCBpdCB3YXMgYSBnb29kIHdheSB0byBpZGVudGlmeSB3aGV0aGVyIHRoZXJl IHN0aWxsIGFyZSAKdXNlcnMgb2YgS1ZNIG9uIEJvb2szUyAzMmJpdCBvdXQgdGhlcmUgOikKCgpB bGV4CgoKCgoKQW1hem9uIERldmVsb3BtZW50IENlbnRlciBHZXJtYW55IEdtYkgKS3JhdXNlbnN0 ci4gMzgKMTAxMTcgQmVybGluCkdlc2NoYWVmdHNmdWVocnVuZzogQ2hyaXN0aWFuIFNjaGxhZWdl ciwgSm9uYXRoYW4gV2Vpc3MKRWluZ2V0cmFnZW4gYW0gQW10c2dlcmljaHQgQ2hhcmxvdHRlbmJ1 cmcgdW50ZXIgSFJCIDE0OTE3MyBCClNpdHo6IEJlcmxpbgpVc3QtSUQ6IERFIDI4OSAyMzcgODc5 CgoK