Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752688AbdLKQDV (ORCPT ); Mon, 11 Dec 2017 11:03:21 -0500 Received: from mx1.redhat.com ([209.132.183.28]:44180 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752204AbdLKQDS (ORCPT ); Mon, 11 Dec 2017 11:03:18 -0500 Subject: Re: [PATCH 2/2] KVM: x86: Allow userspace to define what's the microcode version To: "Sironi, Filippo" Cc: "rkrcmar@redhat.com" , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" References: <1511714482-3273-1-git-send-email-sironi@amazon.de> <1511714482-3273-2-git-send-email-sironi@amazon.de> <510cf2fb-1d53-485f-bfd1-3d852378c866@redhat.com> <7FD2AE1E-8AFA-481C-AADC-BA6889F40B0F@amazon.de> From: Paolo Bonzini Message-ID: Date: Mon, 11 Dec 2017 17:03:14 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0 MIME-Version: 1.0 In-Reply-To: <7FD2AE1E-8AFA-481C-AADC-BA6889F40B0F@amazon.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Mon, 11 Dec 2017 16:03:17 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 277 Lines: 10 On 09/12/2017 08:42, Sironi, Filippo wrote: > I wanted to do the work once rather than doing it per vCPU but using > KVM_{GET|SET}_MSR and extending the list of MSRs that userspace can > save/restore is certainly doable. > > I'll look into that and post a v2. Thanks! Paolo