Received: by 2002:a25:683:0:0:0:0:0 with SMTP id 125csp365025ybg; Wed, 3 Jun 2020 02:49:35 -0700 (PDT) X-Google-Smtp-Source: ABdhPJx4mf8p9S3M0nHTj7oG1SQ+bNlrjy7kbkvp+jD8vEloQIznR7qmEVj0c/0TmxbVHeFKDuiB X-Received: by 2002:a17:906:f10a:: with SMTP id gv10mr13136654ejb.309.1591177775787; Wed, 03 Jun 2020 02:49:35 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1591177775; cv=none; d=google.com; s=arc-20160816; b=fUFj6AOzzC7sqz1SE0p8sUH3VbYuf7NV6oswzF4aht3K84vEe2uWtZzMg978FwX/KU hRsz/9qr/bKsjyqwfgTgLOsKtlqEiiLAsWmQaMCcV3NNs6aBPCtxm11KsF0ehvKrbW8x f94dUB4QwTysL3Ajb/zuUmVdtbki1C65HmtmPsio+W2eiwe93DsJI2146YHgNGgyA5yN wnl3HKVBu8nREOr1CNb0O1aKxYuXhlFk5ibzBgxqNdLSbnAU3oTY7GQWC+FCvv16RmkY Cgnys18KfyplKQewnCxJTOmWgd62/X6SQS36ezFScG0iEs88fHZj9yAkekFEQ85uP1jA q3FA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=4cW9sD3EB+Um6NyyDNWP39uzE9GozokATo0vlHDGsIw=; b=P49Z7yAIhRY42y7k1YpOTIqrbOXguVL1CGPoaNdguPxRojAvMXvDapr8pM7UmjSU0y oiIl8hZAwTm6qnjIm9ZmYlevzkYjK1gpj5osKisHv0anDLfYPocJL8aW/6IMbRdwTHvh S2kFroCLqodn8tbMk/Ie3oYfI1Qljw3h+PZlYKHLSpRJlq0LV7lfkpVk/VFY4fBsg79n xJOXSX3NyBgTUp9xUsSWdic/k/KS139GDGCiLLb/XiurByToltmWAgzJloqghkCkcXif h7PC9uDQSf7qIcBjchiWfPQ9QGbPiOR+6sFdYPVC6zTQWJfHqDDlygh85X18sUSThIrK YoJA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id z3si861596ejm.403.2020.06.03.02.49.08; Wed, 03 Jun 2020 02:49:35 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726652AbgFCJsz (ORCPT + 99 others); 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: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@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