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=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_SANE_2 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 7D4A1C433DF for ; Wed, 3 Jun 2020 07:29:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 476582067B for ; Wed, 3 Jun 2020 07:29:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="rsiYpbdr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725867AbgFCH3H (ORCPT ); Wed, 3 Jun 2020 03:29:07 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:6641 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725810AbgFCH3H (ORCPT ); Wed, 3 Jun 2020 03:29:07 -0400 X-UUID: 46bdbf9e4142415ea62346d624dd87a7-20200603 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=uxJ/OyZIhvn8jO7euhdxxdoo6BqLiSJM0zglxbBqOos=; b=rsiYpbdrvrTKk8pW+Ygso90z2A10JD7TpaJ9wdg6yWauTg7OT4Hw6IgcOEpu9vtFhCjL64pw7yMgy2sMrsE8tK5quGWduMsZI+iGlpkM0KyiC0grLkG+7Aq2sOQ2Dqodeo/S/GdP4dGfcFQZX2HhNDZkkobZQerRHTMBp+aW4Ik=; X-UUID: 46bdbf9e4142415ea62346d624dd87a7-20200603 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 526761993; Wed, 03 Jun 2020 15:29:03 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 3 Jun 2020 15:29:02 +0800 Received: from [172.21.77.33] (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 3 Jun 2020 15:29:01 +0800 Message-ID: <1591169342.4878.9.camel@mtkswgap22> Subject: Re: Security Random Number Generator support From: Neal Liu To: Marc Zyngier , Julius Werner , Ard Biesheuvel CC: Neal Liu , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Herbert Xu , Arnd Bergmann , "Greg Kroah-Hartman" , Sean Wang , lkml , wsd_upstream , Crystal Guo =?UTF-8?Q?=28=E9=83=AD=E6=99=B6=29?= , "Rob Herring" , Linux Crypto Mailing List , Matt Mackall , "Matthias Brugger" , "linux-mediatek@lists.infradead.org" , Linux ARM Date: Wed, 3 Jun 2020 15:29:02 +0800 In-Reply-To: <85dfc0142d3879d50c0ba18bcc71e199@misterjones.org> References: <1591085678-22764-1-git-send-email-neal.liu@mediatek.com> <85dfc0142d3879d50c0ba18bcc71e199@misterjones.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org T24gVHVlLCAyMDIwLTA2LTAyIGF0IDIxOjAyICswODAwLCBNYXJjIFp5bmdpZXIgd3JvdGU6DQo+ IE9uIDIwMjAtMDYtMDIgMTM6MTQsIEFyZCBCaWVzaGV1dmVsIHdyb3RlOg0KPiA+IE9uIFR1ZSwg MiBKdW4gMjAyMCBhdCAxMDoxNSwgTmVhbCBMaXUgPG5lYWwubGl1QG1lZGlhdGVrLmNvbT4gd3Jv dGU6DQo+ID4+IA0KPiA+PiBUaGVzZSBwYXRjaCBzZXJpZXMgaW50cm9kdWNlIGEgc2VjdXJpdHkg cmFuZG9tIG51bWJlciBnZW5lcmF0b3INCj4gPj4gd2hpY2ggcHJvdmlkZXMgYSBnZW5lcmljIGlu dGVyZmFjZSB0byBnZXQgaGFyZHdhcmUgcm5kIGZyb20gU2VjdXJlDQo+ID4+IHN0YXRlLiBUaGUg U2VjdXJlIHN0YXRlIGNhbiBiZSBBcm0gVHJ1c3RlZCBGaXJtd2FyZShBVEYpLCBUcnVzdGVkDQo+ ID4+IEV4ZWN1dGlvbiBFbnZpcm9ubWVudChURUUpLCBvciBldmVuIEVMMiBoeXBlcnZpc29yLg0K PiA+PiANCj4gPj4gUGF0Y2ggIzEuLjIgYWRkcyBzZWMtcm5nIGtlcm5lbCBkcml2ZXIgZm9yIFRy dXN0em9uZSBiYXNlZCBTb0NzLg0KPiA+PiBGb3Igc2VjdXJpdHkgYXdhcmVuZXNzIFNvQ3Mgb24g QVJNdjggd2l0aCBUcnVzdFpvbmUgZW5hYmxlZCwNCj4gPj4gcGVyaXBoZXJhbHMgbGlrZSBlbnRy b3B5IHNvdXJjZXMgaXMgbm90IGFjY2Vzc2libGUgZnJvbSBub3JtYWwgd29ybGQNCj4gPj4gKGxp bnV4KSBhbmQgcmF0aGVyIGFjY2Vzc2libGUgZnJvbSBzZWN1cmUgd29ybGQgKEhZUC9BVEYvVEVF KSBvbmx5Lg0KPiA+PiBUaGlzIGRyaXZlciBhaW1zIHRvIHByb3ZpZGUgYSBnZW5lcmljIGludGVy ZmFjZSB0byBBcm0gVHJ1c3RlZA0KPiA+PiBGaXJtd2FyZSBvciBIeXBlcnZpc29yIHJuZyBzZXJ2 aWNlLg0KPiA+PiANCj4gPj4gDQo+ID4+IGNoYW5nZXMgc2luY2UgdjE6DQo+ID4+IC0gcmVuYW1l IG10Njd4eC1ybmcgdG8gbXRrLXNlYy1ybmcgc2luY2UgYWxsIE1lZGlhVGVrIEFSTXY4IFNvQ3Mg Y2FuIA0KPiA+PiByZXVzZQ0KPiA+PiAgIHRoaXMgZHJpdmVyLg0KPiA+PiAgIC0gcmVmaW5lIGNv ZGluZyBzdHlsZSBhbmQgdW5uZWNlc3NhcnkgY2hlY2suDQo+ID4+IA0KPiA+PiAgIGNoYW5nZXMg c2luY2UgdjI6DQo+ID4+ICAgLSByZW1vdmUgdW51c2VkIGNvbW1lbnRzLg0KPiA+PiAgIC0gcmVt b3ZlIHJlZHVuZGFudCB2YXJpYWJsZS4NCj4gPj4gDQo+ID4+ICAgY2hhbmdlcyBzaW5jZSB2MzoN Cj4gPj4gICAtIGFkZCBkdC1iaW5kaW5ncyBmb3IgTWVkaWFUZWsgcm5nIHdpdGggVHJ1c3Rab25l IGVuYWJsZWQuDQo+ID4+ICAgLSByZXZpc2UgSFdSTkcgU01DIGNhbGwgZmlkLg0KPiA+PiANCj4g Pj4gICBjaGFuZ2VzIHNpbmNlIHY0Og0KPiA+PiAgIC0gbW92ZSBiaW5kaW5ncyB0byB0aGUgYXJt L2Zpcm13YXJlIGRpcmVjdG9yeS4NCj4gPj4gICAtIHJldmlzZSBkcml2ZXIgaW5pdCBmbG93IHRv IGNoZWNrIG1vcmUgcHJvcGVydHkuDQo+ID4+IA0KPiA+PiAgIGNoYW5nZXMgc2luY2UgdjU6DQo+ ID4+ICAgLSByZWZhY3RvciB0byBtb3JlIGdlbmVyaWMgc2VjdXJpdHkgcm5nIGRyaXZlciB3aGlj aA0KPiA+PiAgICAgaXMgbm90IHBsYXRmb3JtIHNwZWNpZmljLg0KPiA+PiANCj4gPj4gKioqIEJM VVJCIEhFUkUgKioqDQo+ID4+IA0KPiA+PiBOZWFsIExpdSAoMik6DQo+ID4+ICAgZHQtYmluZGlu Z3M6IHJuZzogYWRkIGJpbmRpbmdzIGZvciBzZWMtcm5nDQo+ID4+ICAgaHdybmc6IGFkZCBzZWMt cm5nIGRyaXZlcg0KPiA+PiANCj4gPiANCj4gPiBUaGVyZSBpcyBubyByZWFzb24gdG8gbW9kZWwg YSBTTUMgY2FsbCBhcyBhIGRyaXZlciwgYW5kIHJlcHJlc2VudCBpdA0KPiA+IHZpYSBhIERUIG5v ZGUgbGlrZSB0aGlzLg0KPiANCj4gKzEuDQo+IA0KPiA+IEl0IHdvdWxkIGJlIG11Y2ggYmV0dGVy IGlmIHRoaXMgU01DIGludGVyZmFjZSBpcyBtYWRlIHRydWx5IGdlbmVyaWMsDQo+ID4gYW5kIHdp cmVkIGludG8gdGhlIGFyY2hfZ2V0X3JhbmRvbSgpIGludGVyZmFjZSwgd2hpY2ggY2FuIGJlIHVz ZWQgbXVjaA0KPiA+IGVhcmxpZXIuDQo+IA0KPiBXYXNuJ3QgdGhlcmUgYSBwbGFuIHRvIHN0YW5k YXJkaXplIGEgU01DIGNhbGwgdG8gcnVsZSB0aGVtIGFsbD8NCj4gDQo+ICAgICAgICAgIE0uDQoN CkNvdWxkIHlvdSBnaXZlIHVzIGEgaGludCBob3cgdG8gbWFrZSB0aGlzIFNNQyBpbnRlcmZhY2Ug bW9yZSBnZW5lcmljIGluDQphZGRpdGlvbiB0byBteSBhcHByb2FjaD8NClRoZXJlIGlzIG5vIChl YXN5KSB3YXkgdG8gZ2V0IHBsYXRmb3JtLWluZGVwZW5kZW50IFNNQyBmdW5jdGlvbiBJRCwNCndo aWNoIGlzIHdoeSB3ZSBlbmNvZGUgaXQgaW50byBkZXZpY2UgdHJlZSwgYW5kIHByb3ZpZGUgYSBn ZW5lcmljDQpkcml2ZXIuIEluIHRoaXMgd2F5LCBkaWZmZXJlbnQgZGV2aWNlcyBjYW4gYmUgbWFw cGVkIGFuZCB0aGVuIGdldA0KZGlmZmVyZW50IGZ1bmN0aW9uIElEIGludGVybmFsbHkuDQoNCg0K