Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp1924211yba; Tue, 2 Apr 2019 19:57:15 -0700 (PDT) X-Google-Smtp-Source: APXvYqxMSAmXfnOzeGCYelvzncxWpyLTHcY/HkzP8Lg/JoRXO/mJAmH+Y1iBRSFxMp5v86N463V+ X-Received: by 2002:a65:5304:: with SMTP id m4mr25170934pgq.281.1554260235275; Tue, 02 Apr 2019 19:57:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1554260235; cv=none; d=google.com; s=arc-20160816; b=rcVdkFkXef3shz3nQWUqtfhBhYyE5qZmqOSboVrt2186UvW9kaJOvOun/bsVJBKx/c gaVJjgDy7HXsvSw9jd6Is6koeTldcwCjy+j2q8VxtWqF/oOhH8+8osXM2MLhzbiLhaoX y4I4kblOBqusEXb6vOnevZ0JKIzPJ/vIWEbwds71omPjgx0tRhVXJvWRhcUnLLanK3R2 ruVU1EX8e3vDTrr1MHtPlt+ypW24z1TIs0jLRjkVblozvCyQKwAA2zyEBF5NsBYFrcn7 iCdMf1crQHubdRnfWfpweZwBaPEzUQ5zIE7MG1POpwaWdxBoHmkFgV85SmbgCgR9nwlC /3hQ== 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=S2ig1be+sIFgRMbWQ0Djd4ujr3RZdZV0qfjf5c70x20=; b=HIcK3pEDs7kK6bOKDJD/u+QZqPG17+s2PGBUVG0k2+e/wlsFtMaSVlDii/zvF8wpj9 M/1ubGpYVYCbD+iNKhsLDIBVGxrM/tZ8H5/U/Tk0vlx7AMr7kcYk0R/tpJQrCSJf3PH7 A5yc4C9q4bFbEZlskPiElVdp6bctvihwB4xvivcLZtn7Uzkq6Z9GIGbruR11IqA7i8oW Q05LasrM7gkf5hI1zEi1Hr3vuaVWtY8Vy82tMUjfUrHYiT7UlbcPFcF5V+TGoT0ydgjo f9pkULFgHG3sKq44U0mEGvIJAuk8CEBav3D9oUvpFAMQCUvoKkX/ZnI9C5x4w/81Tkyp PFjA== 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 i1si3892752plt.68.2019.04.02.19.57.00; Tue, 02 Apr 2019 19:57:15 -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 S1727322AbfDCCyw (ORCPT + 99 others); Tue, 2 Apr 2019 22:54:52 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:6218 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726411AbfDCCyu (ORCPT ); Tue, 2 Apr 2019 22:54:50 -0400 Received: from DGGEMS408-HUB.china.huawei.com (unknown [10.3.19.208]) by Forcepoint Email with ESMTP id 2330B9790E51A53BD62C; Wed, 3 Apr 2019 10:54:47 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.408.0; Wed, 3 Apr 2019 10:54:36 +0800 From: Chen Zhou To: , , , , , CC: , , , , , Chen Zhou Subject: [PATCH 3/3] kdump: update Documentation about crashkernel on arm64 Date: Wed, 3 Apr 2019 11:05:46 +0800 Message-ID: <20190403030546.23718-4-chenzhou10@huawei.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190403030546.23718-1-chenzhou10@huawei.com> References: <20190403030546.23718-1-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] 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 27a5f8c..6772f4f 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