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Tue, 28 May 2019 08:53:49 -0700 (PDT) Message-ID: <5ced598d.1c69fb81.dabd8.339d@mx.google.com> MIME-Version: 1.0 In-Reply-To: <20190527043336.112854-2-hsinyi@chromium.org> References: <20190527043336.112854-1-hsinyi@chromium.org> <20190527043336.112854-2-hsinyi@chromium.org> Subject: Re: [PATCH v5 2/3] fdt: add support for rng-seed From: Stephen Boyd To: Hsin-Yi Wang , linux-arm-kernel@lists.infradead.org User-Agent: alot/0.8.1 Date: Tue, 28 May 2019 08:53:48 -0700 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190528_085351_915914_9D7486AA X-CRM114-Status: GOOD ( 10.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Nicolas Boichat , Yu Zhao , Kees Cook , Ard Biesheuvel , Catalin Marinas , Will Deacon , linux-kernel@vger.kernel.org, Mike Rapoport , Jun Yao , Miles Chen , Rob Herring , James Morse , Hsin-Yi Wang , Andrew Murray , Andrew Morton , Laura Abbott , Frank Rowand , Robin Murphy Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Quoting Hsin-Yi Wang (2019-05-26 21:33:35) > Introducing a chosen node, rng-seed, which is an entropy that can be > passed to kernel called very early to increase initial device > randomness. Bootloader should provide this entropy and the value is > read from /chosen/rng-seed in DT. > > Signed-off-by: Hsin-Yi Wang > --- Reviewed-by: Stephen Boyd _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: Re: [PATCH v5 2/3] fdt: add support for rng-seed Date: Tue, 28 May 2019 08:53:48 -0700 Message-ID: <5ced598d.1c69fb81.dabd8.339d@mx.google.com> References: <20190527043336.112854-1-hsinyi@chromium.org> <20190527043336.112854-2-hsinyi@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20190527043336.112854-2-hsinyi@chromium.org> Sender: linux-kernel-owner@vger.kernel.org To: linux-arm-kernel@lists.infradead.org Cc: Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Frank Rowand , Catalin Marinas , Will Deacon , Andrew Morton , Mike Rapoport , Ard Biesheuvel , Miles Chen , Hsin-Yi Wang , James Morse , Andrew Murray , Mark Rutland , Jun Yao , Yu Zhao , Robin Murphy , Laura Abbott , Kees Cook , Nicolas Boichat List-Id: devicetree@vger.kernel.org Quoting Hsin-Yi Wang (2019-05-26 21:33:35) > Introducing a chosen node, rng-seed, which is an entropy that can be > passed to kernel called very early to increase initial device > randomness. Bootloader should provide this entropy and the value is > read from /chosen/rng-seed in DT. >=20 > Signed-off-by: Hsin-Yi Wang > --- Reviewed-by: Stephen Boyd 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=-4.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED autolearn=ham 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 0937BC04AB6 for ; Tue, 28 May 2019 15:53:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CEBF32182B for ; Tue, 28 May 2019 15:53:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="H/tDQsto" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727021AbfE1Pxv (ORCPT ); Tue, 28 May 2019 11:53:51 -0400 Received: from mail-pg1-f193.google.com ([209.85.215.193]:34848 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726313AbfE1Pxv (ORCPT ); Tue, 28 May 2019 11:53:51 -0400 Received: by mail-pg1-f193.google.com with SMTP id t1so11251055pgc.2 for ; Tue, 28 May 2019 08:53:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=message-id:mime-version:content-transfer-encoding:in-reply-to :references:subject:from:cc:to:user-agent:date; bh=gZdVe4KYsQOsjAdrlH5pjQLw2I8u7ZqIj2eBsmzs94M=; b=H/tDQsto+r3bnOsQ2Dr3G9DPtN6VFJ21sEuBJ25/pR8vNxEeLnmJnk/0c9YuW8bkDe b5W3NUIWMGHJCKZiVPs+K+9bO3xF+nnc6gxysYXLoxJtPhNQwYf8eD8U9JBxqFz0r8pv GDmox1lVt5VuEkJhsEpbB7no06+vFaqML/62g= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:mime-version :content-transfer-encoding:in-reply-to:references:subject:from:cc:to :user-agent:date; bh=gZdVe4KYsQOsjAdrlH5pjQLw2I8u7ZqIj2eBsmzs94M=; b=k/5j2LY2GgpMLqSoZrBGbEvEm3+GXVEGxwVGMRN2zNowTL4c6P5QNnKF3tPg17UrsJ kJ3bauUUdiWDIHBTDqmyd/U9uF8rQwm1CcXo51dOyWFJK3mAa6OH1djQbOfNMuKpMkYa YQSo+9ofzKmikQRIXdCa7RFwrQINUrZuGHBoCklrkuCcL6X7kx7+KYW1OoThGIJ0ezHf Gu1CBRPX5C3UBcirpyMVUGRrgQ0eXeDwiCbh+KVxjwUKJ9FTiFDKDGBWencp3wQyFgrK dDS58t7i2+EVUXdy2CevFYyXa7uhWYIEQ2TYgOJuog5uYXl3Vh8Txoz0vTwtjY9bp4MM RHkw== X-Gm-Message-State: APjAAAXSYo/yYyT6KVRD1b/de0JNi4QW0+fHhJWgm32Ez8cbScZl1TcH 2uI0gAMH3M9jXibkfWow8XPF+w== X-Google-Smtp-Source: APXvYqw6/Wgo8S4X+4IdRoxCALLE8MCP8dhzdasnJiMxFjFHV3zRdny03KvOcEq5wVUfOwMG+APqMw== X-Received: by 2002:a17:90a:17ca:: with SMTP id q68mr6883350pja.104.1559058830791; Tue, 28 May 2019 08:53:50 -0700 (PDT) Received: from chromium.org ([2620:15c:202:1:fa53:7765:582b:82b9]) by smtp.gmail.com with ESMTPSA id f17sm13153090pgv.16.2019.05.28.08.53.49 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 28 May 2019 08:53:49 -0700 (PDT) Message-ID: <5ced598d.1c69fb81.dabd8.339d@mx.google.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: <20190527043336.112854-2-hsinyi@chromium.org> References: <20190527043336.112854-1-hsinyi@chromium.org> <20190527043336.112854-2-hsinyi@chromium.org> Subject: Re: [PATCH v5 2/3] fdt: add support for rng-seed From: Stephen Boyd Cc: Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Frank Rowand , Catalin Marinas , Will Deacon , Andrew Morton , Mike Rapoport , Ard Biesheuvel , Miles Chen , Hsin-Yi Wang , James Morse , Andrew Murray , Mark Rutland , Jun Yao , Yu Zhao , Robin Murphy , Laura Abbott , Kees Cook , Nicolas Boichat To: Hsin-Yi Wang , linux-arm-kernel@lists.infradead.org User-Agent: alot/0.8.1 Date: Tue, 28 May 2019 08:53:48 -0700 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Quoting Hsin-Yi Wang (2019-05-26 21:33:35) > Introducing a chosen node, rng-seed, which is an entropy that can be > passed to kernel called very early to increase initial device > randomness. Bootloader should provide this entropy and the value is > read from /chosen/rng-seed in DT. >=20 > Signed-off-by: Hsin-Yi Wang > --- Reviewed-by: Stephen Boyd