From patchwork Tue Apr 16 11:35:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: chenzhou X-Patchwork-Id: 10902767 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CD3CA139A for ; Tue, 16 Apr 2019 11:25:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B4FDA28842 for ; Tue, 16 Apr 2019 11:25:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A443228999; Tue, 16 Apr 2019 11:25:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 45A5928842 for ; Tue, 16 Apr 2019 11:25:12 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E7A716B0010; Tue, 16 Apr 2019 07:25:10 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id DB0986B0266; Tue, 16 Apr 2019 07:25:10 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C4DC26B0269; Tue, 16 Apr 2019 07:25:10 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from mail-ot1-f71.google.com (mail-ot1-f71.google.com [209.85.210.71]) by kanga.kvack.org (Postfix) with ESMTP id 93D4E6B0010 for ; Tue, 16 Apr 2019 07:25:10 -0400 (EDT) Received: by mail-ot1-f71.google.com with SMTP id u18so10551259otq.5 for ; Tue, 16 Apr 2019 04:25:10 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-original-authentication-results:x-gm-message-state:from:to:cc :subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=s3cqLnZ8ikaGliCL7mUmXmKsHQTifOzyfKPhb+L5V7k=; b=hgTHdm8qVpy/jkXIFDe5yJ1/TNdt3v/oOdBp2QVygz1z3XDHoSJG+JLMHdoSqcqAE3 Kl6CSPQcNrelVFT90wlC47nbSoKLmMmmX90zwslkHSPEzI5PD8Hi4OqqHN/0lgeOMfqG rAdvXKPsKOMN/QuF6JYxaXrqHUOyRr4vPcQoCDRgQt/HfHVcjv6nmAsW/XhASpCdd7+g rWF+3YRtJCEQGNdUmxLnVetYLDnrj9YGEUFQZWt8nbszni3ydzp6S6syJVb22GEyMIlp 9iaGjb/HoOzH/cy/Tv5j31SBjFrAA45PQnswTO1weYTBhYPZ+lRKvqnaucxs0Baz1ZNB dz/Q== X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of chenzhou10@huawei.com designates 45.249.212.35 as permitted sender) smtp.mailfrom=chenzhou10@huawei.com X-Gm-Message-State: APjAAAXhiPlTVd2K3pKNkaczPWpJpgMtL+sT7O6QKCnVvubxL/5v+rDz 4ZSIQfwneYjvE/X8epcBZuMVkkhwhKfLT0V/7HdcEwpieHUKHlfQ5zBLefp0sv8g3W0ah6rvgOo 1PSpJuzDmpjBDuP0Q0WgUybJQWcDzbYYgDirRYRv80ZXvjkJ/dqICp3pb35k8zbooaQ== X-Received: by 2002:a9d:6519:: with SMTP id i25mr49658477otl.287.1555413910342; Tue, 16 Apr 2019 04:25:10 -0700 (PDT) X-Google-Smtp-Source: APXvYqxfLcVj1JiLeepRbcleZf9Aa9jj0zCv+RS0JBSGys+GC5oAgrT+q2pVC67JW4BK5vuVMTxi X-Received: by 2002:a9d:6519:: with SMTP id i25mr49658454otl.287.1555413909715; Tue, 16 Apr 2019 04:25:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1555413909; cv=none; d=google.com; s=arc-20160816; b=Ai8zdff/LMRbHCHjS2cVUCueF+40k+kxfqdVdCzABkrGl9Eg3BgT7MGicXAvBFmefR K2zPRmoxvvQceTi4TN6jyK9rZzU6h8GaNtPYNfZ4DRwGZ0DblMNcVbcmHP4apoGHDtQF S9CvD6oDJZhknVJFaL5TnredsM1/5a1PXfLx/E3cEKQ16UwPeuVxPUgF2qehfwczMgbO hziQcWloLs8tZE2s4rX84hDuZ0ddmAsWim/Ri4Xhvn2YIGaPX+XER6mSWqX8k+EDH+pk 8O1+XoVKZvSE4gLAez6YMKfjoqxxJ38jb277g5He3i7mSmMEISw/YJa/4MS3QwdR4NHe pnGA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from; bh=s3cqLnZ8ikaGliCL7mUmXmKsHQTifOzyfKPhb+L5V7k=; b=E6XJrOl9qSvnj1PqMMbR9owp4tNK1byICfd3VAnb7bGVX5ZzjrbSeff0xf+sTyrlTv rVrzWpYjWAVFeLEBEeLdkQLISYGkgQe8G6abk3Xjg5t4CWQAzjwheU7Rm47HkpEH8Suk bW4Vew7ti6bBPcqjXbQN7cLSXQ81wUyKN4F3GYGIzEjYUmmpbtAA0fWbiCHP1gL0WXaD Zl3c0Q4FpwjUxjU8/iglmHpR2jkupY4b9WSbTyWUdSK+dE29vM7cG5ez5w/vLg1Smc0+ g9bK3ezLdCxDMJl/yWRGtVl38kwTxwT6AapgwlsDNbjs1hdDQMvn9an0osSXn7f0m1Ty n/ag== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of chenzhou10@huawei.com designates 45.249.212.35 as permitted sender) smtp.mailfrom=chenzhou10@huawei.com Received: from huawei.com (szxga07-in.huawei.com. [45.249.212.35]) by mx.google.com with ESMTPS id n185si24211991oih.36.2019.04.16.04.25.09 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Apr 2019 04:25:09 -0700 (PDT) Received-SPF: pass (google.com: domain of chenzhou10@huawei.com designates 45.249.212.35 as permitted sender) client-ip=45.249.212.35; Authentication-Results: mx.google.com; spf=pass (google.com: domain of chenzhou10@huawei.com designates 45.249.212.35 as permitted sender) smtp.mailfrom=chenzhou10@huawei.com Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 725CBBCF56F8F71E26B6; Tue, 16 Apr 2019 19:25:04 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.408.0; Tue, 16 Apr 2019 19:24:54 +0800 From: Chen Zhou To: , , , , , , , , CC: , , , , , , , Chen Zhou Subject: [RESEND PATCH v5 4/4] kdump: update Documentation about crashkernel on arm64 Date: Tue, 16 Apr 2019 19:35:19 +0800 Message-ID: <20190416113519.90507-5-chenzhou10@huawei.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190416113519.90507-1-chenzhou10@huawei.com> References: <20190416113519.90507-1-chenzhou10@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: X-Virus-Scanned: ClamAV using ClamSMTP Now we support crashkernel=X,[high,low] on arm64, update the Documentation. Signed-off-by: Chen Zhou --- Documentation/admin-guide/kernel-parameters.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 308af3b..a055983 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -715,14 +715,14 @@ Documentation/kdump/kdump.txt for an example. crashkernel=size[KMG],high - [KNL, x86_64] range could be above 4G. Allow kernel + [KNL, x86_64, arm64] range could be above 4G. Allow kernel to allocate physical memory region from top, so could be above 4G if system have more than 4G ram installed. Otherwise memory region will be allocated below 4G, if available. It will be ignored if crashkernel=X is specified. crashkernel=size[KMG],low - [KNL, x86_64] range under 4G. When crashkernel=X,high + [KNL, x86_64, arm64] range under 4G. When crashkernel=X,high is passed, kernel could allocate physical memory region above 4G, that cause second kernel crash on system that require some amount of low memory, e.g. swiotlb