Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp3081244yba; Tue, 16 Apr 2019 04:26:14 -0700 (PDT) X-Google-Smtp-Source: APXvYqymj3bwwOC216puMVA8JhS15rsGGjI9sVeRz7RQE24XnjiY3p3NYU7Wo7MqDB9dA8MACcpV X-Received: by 2002:a63:720e:: with SMTP id n14mr75108320pgc.93.1555413974398; Tue, 16 Apr 2019 04:26:14 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1555413974; cv=none; d=google.com; s=arc-20160816; b=eHRTNg4Ng6FKwFmhFfQaYnPYmFvbN0jUFJt+FtkVCjqlYMuOyVhx9bBhA6wkxLHJDZ S8HCG8V7LRft279GPyI0N4AYx31SgWg6nyhJFkXvvAtByif/Z2YQ5u69kOyaacog/Xxd ONrrw6Kn0Vnu2/nA42qbVKuIZpeUbF2rEARqREkrXuJ5/tYq992Ae5+5eIHW8nVAcfSo Uj7B9vIl4rnd+WwNTD6LjUyk30NBsTszyyD3JzHCw9AKk3F1PWH6yZktsjMugnM75dVE 1XTMEhV7SZ+/7a6aMdT2VDbAq442XWnsvEHYTBLmvfSOoFdqG9uHgpHXwnJJmEkPtn76 +2mQ== 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:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=s3cqLnZ8ikaGliCL7mUmXmKsHQTifOzyfKPhb+L5V7k=; b=trEkai+m3B9H7F45MbZnQNUvY3ciBnxqkNVaHS1Y0JVThTneXOUfddI2PeN/QdjTGi +zvacNYmxSBTWLlsnDWPOQyTjzXOkLivCoj1219Sk9M6HF8QfxqY9DfbESRmC/jDaipf 5g6kkIAh7NW+of/3kyTKAsNPvurm7WhRXkkMOBkL8sNIM18CNZFJtehPlzeoJKGORDir SkkqHskn095il4f20keE/wCwR8Oq8MFoARmTT5VS3j4j4RkBXQru78CuAEr54NGwbmq8 D0gRDQ2V8axr2L3+qoQXC40fs79L6l8sFK1pon2USLQaWKdSPqpvCXqGLVcVfU3z//XD JIvw== 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 i96si29209101plb.331.2019.04.16.04.25.58; Tue, 16 Apr 2019 04:26:14 -0700 (PDT) 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 S1729210AbfDPLZI (ORCPT + 99 others); Tue, 16 Apr 2019 07:25:08 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:52152 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729197AbfDPLZG (ORCPT ); Tue, 16 Apr 2019 07:25:06 -0400 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 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 -- 2.7.4