From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755196AbdEKHo6 (ORCPT ); Thu, 11 May 2017 03:44:58 -0400 Received: from mail-wr0-f196.google.com ([209.85.128.196]:36486 "EHLO mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754863AbdEKHoz (ORCPT ); Thu, 11 May 2017 03:44:55 -0400 Subject: Re: [PATCH] KVM: x86: Fix load damaged SSEx MXCSR register To: Wanpeng Li Cc: "linux-kernel@vger.kernel.org" , kvm , =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= , Wanpeng Li References: <1494411564-76243-1-git-send-email-wanpeng.li@hotmail.com> <6d515b93-e7e2-fbae-a91c-12b98fe923de@redhat.com> From: Paolo Bonzini Message-ID: Date: Thu, 11 May 2017 09:44:52 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/05/2017 02:56, Wanpeng Li wrote: >> Hmm, thinking more about it, maybe use mxcsr_feature_mask instead of >> digging into vcpu->arch.guest_fpu? If you send v2, please remember to > ERROR: "mxcsr_feature_mask" [arch/x86/kvm/kvm.ko] undefined. So we > should dig into vcpu->arch.guest_fpu. Yes, you need to export it. Paolo