Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751967AbdHGX7b (ORCPT ); Mon, 7 Aug 2017 19:59:31 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:3019 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751881AbdHGX7a (ORCPT ); Mon, 7 Aug 2017 19:59:30 -0400 Subject: Re: [PATCH v2] KVM: arm64: pass vcpu esr_el2 and far_el2 sysre to user space To: Marc Zyngier References: <1502133454-5905-1-git-send-email-gengdongjiu@huawei.com> <86r2wnxkm7.fsf@arm.com> CC: , , , , , , , , , From: gengdongjiu Message-ID: <4f79970c-5341-f8ef-56bc-e0a9cf227363@huawei.com> Date: Tue, 8 Aug 2017 07:53:36 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 MIME-Version: 1.0 In-Reply-To: <86r2wnxkm7.fsf@arm.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.142.68.147] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.5988FE0B.00FF,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: c54c9683fb217ac83da68f465fa919aa Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 360 Lines: 9 Marc, On 2017/8/8 3:07, Marc Zyngier wrote: > So if you want that information, extract it, expose what is required, > strictly what is required, and only when it is required. > > In the meantime, I'm NAKing this patch, and any patch that will expose > _EL2 registers outside of nested virtualization. Thanks for your comments, I will follow your suggestion.