Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp3725053yba; Tue, 9 Apr 2019 03:32:31 -0700 (PDT) X-Google-Smtp-Source: APXvYqwi1IpaBwFacQ56FXPu6A6qV547sTQISk//btdvbadFcdl77fltl3UdM273Q90i/Z3Ykd0N X-Received: by 2002:a62:1249:: with SMTP id a70mr35653410pfj.160.1554805951309; Tue, 09 Apr 2019 03:32:31 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1554805951; cv=none; d=google.com; s=arc-20160816; b=g54+6Df2zAYCt76qq+yCWlxT9gOyrfDHYGtuRsmffeGqoqZY7sPlG8BJx2sfjP8qwv ra+sNSo8ZieaC6prb70JvjzhhScHNqVL1iDTFLhHRRDvQjGFfrKpxwP64qm7egeYisc6 8/rF0hrNPC4rCaYA8Qnrz1sZHL2uX7T5v4ffXziI3+idbKSvTsSuZVPr6ROCaGGOhl18 /tUNpW5IKg6Vbp2Z9lhVuXh5CB/MDuWek2IPa0Ohd+djMqfqhPdRklqqAdhBHcsDxrZW F0knJkZ0/hXbkmIJItGy4ENvi4BxqbFCaCf8LhB7GNxgLTLmeyqEn4nqaTcd462Dn//G z4rA== 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=ok8I24TtxuWgDq0ME4RBGiLUC2kWpehBcB4g0fC0unk=; b=tOrLrlokw4jrnb31HmDZkp6tC9+JasZXu00O/zeSVQPoK9QkT8kGQhl0mlopEc2jmq SmUmBKxVBZBx3WZYZ/Jh6aI05YK2BjrkTpKp6kQ75FsqdR9B8dKCiZAOdeTDNG1z6ryY Tek+0Z1qcnlSo4Vr5LsrXbFi7BBG9SWSfeg8BGYV78sUVv5ZdcLwJsK2w2AyFORWd7qd pmDpGHBrUaJqUjYsq/Qva92lN2M3ZiCu+bDxpLBaxH39aluGP0PfxE2RRvMTM48u2clf OV4UOPaN/1uxftg3v3rqoH8hJXzyoBMbU5FwXdye+FFL37yOSmZaYyfKIwK9g5arJkQL lBKQ== 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 91si29404994ple.299.2019.04.09.03.32.16; Tue, 09 Apr 2019 03:32:31 -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 S1726920AbfDIKa0 (ORCPT + 99 others); Tue, 9 Apr 2019 06:30:26 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:6715 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726352AbfDIKaZ (ORCPT ); Tue, 9 Apr 2019 06:30:25 -0400 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 6B49190406CAC14DD96D; Tue, 9 Apr 2019 18:17:36 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS402-HUB.china.huawei.com (10.3.19.202) with Microsoft SMTP Server id 14.3.408.0; Tue, 9 Apr 2019 18:17:28 +0800 From: Chen Zhou To: , , , , , , , , CC: , , , , , , , Chen Zhou Subject: [PATCH v3 4/4] kdump: update Documentation about crashkernel on arm64 Date: Tue, 9 Apr 2019 18:28:19 +0800 Message-ID: <20190409102819.121335-5-chenzhou10@huawei.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190409102819.121335-1-chenzhou10@huawei.com> References: <20190409102819.121335-1-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 060482d..d5c65e1 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