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 801D5C4BA24 for ; Thu, 27 Feb 2020 01:55:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 62D8224670 for ; Thu, 27 Feb 2020 01:55:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728262AbgB0Bzr (ORCPT ); Wed, 26 Feb 2020 20:55:47 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:10699 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728145AbgB0Bzr (ORCPT ); Wed, 26 Feb 2020 20:55:47 -0500 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 1B158BC9F0B0FD770580; Thu, 27 Feb 2020 09:55:44 +0800 (CST) Received: from [127.0.0.1] (10.173.221.195) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.439.0; Thu, 27 Feb 2020 09:55:38 +0800 Subject: Re: [PATCH v3 0/6] implement KASLR for powerpc/fsl_booke/64 To: Daniel Axtens , , , , , , , , , , CC: , References: <20200206025825.22934-1-yanaijie@huawei.com> <87tv3drf79.fsf@dja-thinkpad.axtens.net> <8171d326-5138-4f5c-cff6-ad3ee606f0c2@huawei.com> <87r1yhr2x1.fsf@dja-thinkpad.axtens.net> From: Jason Yan Message-ID: <25e995fa-f9f4-8ba6-c62b-dc8bccd28cbe@huawei.com> Date: Thu, 27 Feb 2020 09:55:36 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.4.2 MIME-Version: 1.0 In-Reply-To: <87r1yhr2x1.fsf@dja-thinkpad.axtens.net> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.173.221.195] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 在 2020/2/26 19:41, Daniel Axtens 写道: > I suspect that you will find it easier to convince people to accept a > change to %pK than removal:) > > BTW, I have a T4240RDB so I might be able to test this series at some > point - do I need an updated bootloader to pass in a random seed, or is > the kernel able to get enough randomness by itself? (Sorry if this is > explained elsewhere in the series, I have only skimmed it lightly!) > Thanks. It will be great if you have time to test this series. You do not need an updated bootloader becuase the kernel is using timer base as a simple source of entropy. This is enough for testing the KASLR code itself. Jason > Regards, > Daniel