Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp2040099yba; Mon, 15 Apr 2019 03:48:11 -0700 (PDT) X-Google-Smtp-Source: APXvYqwniJQrEGbd1ziRXDbE3XAmuTwjNxnYZVfX37Sgx+UNGnNwW4Ao52NSivlOEnZDGGdN9Km2 X-Received: by 2002:a62:14d7:: with SMTP id 206mr73037422pfu.162.1555325291552; Mon, 15 Apr 2019 03:48:11 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1555325291; cv=none; d=google.com; s=arc-20160816; b=h/z+UBoCFWAawRZtbyu4gyfjIvwiyahdCsepAtNJpHK4GdulpvwpJYfW1NnMrSJniT ZclU1vvbqgvXuojntRgtfAajQiEq3TD2DgYj/redVj83Dy2uSmOqgfGO3Fu7h80wQUnj RuEYXiAi5go7P9f/KQ9XAt4xyUlThSdPnnG36JTcal24EZP43gr2Hy2ZwrOTIv4F5rc0 8kta4q6dTnS/qmGgNaA4fGznFE4+MsMltDc3d0OUDtp6tCXNFUdRBSt6ACPBbVyLQlsx EMqDvGBF3wYZoOMj/3pN/aukXU6JcCVckfmAlAyEqN8X4Ih+VgiIvaXCaBJNy85wrQ6u 6nwQ== 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=b1GzTwpJYn/3CfL5mXf/7A/VoVovQYlwPhA2Guenk2zGYrjnHoTmOFQmh0eXl81zkt jfy2ioVtOP+SRy1ywcdoq+bGP7H8N05JavbFBIKww8lOZTpTsvPIX23f4MauuQ7IbBsU nmssTP0CfcLPZs7cibHS/CLnyq09+R8vx/erMn70BoNuqHFxrgZ9HT2IqrdbfqPBtEk2 hQcwUZ/aLRPQo1/1V62pQVtZ9PbQtCE3es85tCjhM+/ssJpYSF8a6cB25TcHzCc0LTae 64M3HloGvJ+7InOCVUgdTnPnKfnQokwf3GNxUKH2LTXqZexZJ8D/G90gb4iNbAWDR6Ev xqaQ== 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 o14si46617446pgf.200.2019.04.15.03.47.55; Mon, 15 Apr 2019 03:48:11 -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 S1727342AbfDOKrN (ORCPT + 99 others); Mon, 15 Apr 2019 06:47:13 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:6744 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727285AbfDOKrL (ORCPT ); Mon, 15 Apr 2019 06:47:11 -0400 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 8810C6B0925E761BECE1; Mon, 15 Apr 2019 18:47:08 +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; Mon, 15 Apr 2019 18:46:58 +0800 From: Chen Zhou To: , , , , , , , , CC: , , , , , , , Chen Zhou Subject: [PATCH v4 5/5] kdump: update Documentation about crashkernel on arm64 Date: Mon, 15 Apr 2019 18:57:25 +0800 Message-ID: <20190415105725.22088-6-chenzhou10@huawei.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190415105725.22088-1-chenzhou10@huawei.com> References: <20190415105725.22088-1-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