From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752279AbaHMSoz (ORCPT ); Wed, 13 Aug 2014 14:44:55 -0400 Received: from terminus.zytor.com ([198.137.202.10]:57207 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751852AbaHMSox (ORCPT ); Wed, 13 Aug 2014 14:44:53 -0400 Message-ID: <53EBB214.4030102@zytor.com> Date: Wed, 13 Aug 2014 11:44:36 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.7.0 MIME-Version: 1.0 To: Andy Lutomirski , "Theodore Ts'o" , kvm list , "linux-kernel@vger.kernel.org" , Kees Cook , X86 ML , Daniel Borkmann , Srivatsa Vaddagiri , Raghavendra K T , Gleb Natapov , Paolo Bonzini , Bandan Das , Andrew Honig Subject: Re: [PATCH v5 0/5] random,x86,kvm: Rework arch RNG seeds and get some from kvm References: <20140812191723.GI12871@thunk.org> <53EB1859.6030800@zytor.com> <20140813143209.GD6437@thunk.org> <53EBA435.3020207@zytor.com> <20140813182219.GE6437@thunk.org> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/13/2014 11:33 AM, Andy Lutomirski wrote: > > As for doing arch_random_init after clone/migration, I think we'll > need another KVM extension for that, since, AFAIK, we don't actually > get notified that we were cloned or migrated. That will be > nontrivial. Maybe we can figure that out at KS, too. > We don't need a reset when migrated (although it might be a good idea under some circumstances, i.e. if the pools might somehow have gotten exposed) but definitely when cloned. -hpa