From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A67ADC433E0 for ; Wed, 3 Jun 2020 09:48:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8173320734 for ; Wed, 3 Jun 2020 09:48:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726334AbgFCJsz (ORCPT ); Wed, 3 Jun 2020 05:48:55 -0400 Received: from foss.arm.com ([217.140.110.172]:59252 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726099AbgFCJsz (ORCPT ); Wed, 3 Jun 2020 05:48:55 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B576831B; Wed, 3 Jun 2020 02:48:54 -0700 (PDT) Received: from bogus (unknown [10.37.12.118]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2EE943F305; Wed, 3 Jun 2020 02:48:51 -0700 (PDT) Date: Wed, 3 Jun 2020 10:48:40 +0100 From: Sudeep Holla To: Neal Liu Cc: Marc Zyngier , Julius Werner , Ard Biesheuvel , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Herbert Xu , Arnd Bergmann , Greg Kroah-Hartman , Sean Wang , linux-mediatek@lists.infradead.org, lkml , wsd_upstream , Rob Herring , Linux Crypto Mailing List , Matt Mackall , Sudeep Holla , Jose Marinho , Matthias Brugger , Crystal Guo =?utf-8?B?KOmDreaZtik=?= , Linux ARM Subject: Re: Security Random Number Generator support Message-ID: <20200603094829.GA7259@bogus> References: <1591085678-22764-1-git-send-email-neal.liu@mediatek.com> <85dfc0142d3879d50c0ba18bcc71e199@misterjones.org> <1591169342.4878.9.camel@mtkswgap22> <1591170857.19414.5.camel@mtkswgap22> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1591170857.19414.5.camel@mtkswgap22> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org + Jose On Wed, Jun 03, 2020 at 03:54:17PM +0800, Neal Liu wrote: > On Wed, 2020-06-03 at 08:40 +0100, Marc Zyngier wrote: [...] > > The idea is simply to have *one* single ID that caters for all > > implementations, just like we did for PSCI at the time. This > > requires ARM to edict a standard, which is what I was referring > > to above. > > > > There is zero benefit in having a platform-dependent ID. It just > > pointlessly increases complexity, and means we cannot use the RNG > > before the firmware tables are available (yes, we need it that > > early). > > > > Do you know which ARM expert could edict this standard? > Or is there any chance that we can make one? And be reviewed by > maintainers? > Jose Marinho is working on the spec, may be he has more updates on the timeline. -- Regards, Sudeep