Received: by 2002:a25:c205:0:0:0:0:0 with SMTP id s5csp530912ybf; Wed, 26 Feb 2020 17:56:33 -0800 (PST) X-Google-Smtp-Source: APXvYqz2irXqOw1UgAJF2HR1qjZTFf3EVUKt87Rdg3N9inqnVzie/oVSiy8YEnajc44lYbozLFEe X-Received: by 2002:a05:6808:98e:: with SMTP id a14mr1546103oic.8.1582768593452; Wed, 26 Feb 2020 17:56:33 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1582768593; cv=none; d=google.com; s=arc-20160816; b=HCYUma3K0mmgkY3JI8LNHhVO7GPUKhGmJbffTaIq6AmavtmmicsKHPCTbCxK9HGSC2 sXdxMSkZebZlxghpN5I3YEPrR67BJktb/1kpf0Uw2QTBV2V/e+KkS7Q7/bsNPAAJ4Qr+ nNkw/8cJ1R3s3eqnSlCNKodvX/MqEz12Q8W22ZNesjkUQR45ZmGuz+aOnbiX/i25CjD7 ZjWpZQgSZd9VkhpESqluCcZs/HYOB/Z6bqsibsKvyC1dHYRZi282smtGO9re1Pe+uaoF O8i9hHsmvcxlX/xyRTjX5S3k1l+vp/NITaLVuAxPK3YMo5h2VVSq/dXVULpB9xrZbYrx YQrQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:in-reply-to :mime-version:user-agent:date:message-id:from:references:cc:to :subject; bh=vjns2IO5vAghje9+Svl5cH8jUB8mx1ZlQ0akdYKFgX8=; b=alBxEPFqPQQ8FmOHMAnh0t766hj4SnRn+uYgWptOVHotOm30ERhqbodJVjaa8kt7Y/ wJRKKouC8I+Sovstiseu3TSwH4Nivk4CU2F+e3RJeNZM/IfxhAbJ50491l6A5vic6dKk x8cbHbIl/air8S9otSZjfktVlMN0fklhPwuNegyQFXvC1zq7SFu5JOYfRUuHQx/+IUyk IG0boHMQcnu3HYKiN+WUtNEQfF8RaRlgXE6lgBkeotQ1lpYLPQ6tymo/ywCccpea+TRu LLBn2Vt+pegwqK0VauGmhlEDK9zPPkFpgalN+oxFF+uQDXUocLMoeFb5X0Xv+w/oMCGt +3Zg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id a143si493329oii.179.2020.02.26.17.56.20; Wed, 26 Feb 2020 17:56:33 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728200AbgB0Bzr (ORCPT + 99 others); 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