Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp2928070yba; Tue, 16 Apr 2019 00:35:13 -0700 (PDT) X-Google-Smtp-Source: APXvYqxMiZBahESue8PjkQZoUgabsP6aKJPjfSDQlv/HzCUfTWq9fhL0BYi5isYHHcWfVlNZ7/L7 X-Received: by 2002:a62:6c43:: with SMTP id h64mr82959818pfc.123.1555400113159; Tue, 16 Apr 2019 00:35:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1555400113; cv=none; d=google.com; s=arc-20160816; b=aBBBczlqutZ2Olf53aePu96doUDw9vLIx5LgjC4NgroX+7ofnjjE3X9WVuIHTW+s07 cu5XcujW26OjmtW0dw3wlBTPP4feDZoyYR19mc3qYdtes9RuL4K3C20Qk03/41QV25LO P5rUEDovvlrY3C3k2CV3kGit/eFeupkyIoz/nLv9tXOBjyAeZK5k2B0uqUMDJ0naKYJ7 hBcXkVK8kpsC9Dnkc84Kax3g2IkRFxtER0gMGtaoHfeBDpb3xC+yLkR4o51opBdOxuJc ibHO425u+3Z4ehqw9G/LQ+yQWM24izs4vrglbivc7Zi+lK7dqWpkwBdjqQT+rV6K+GXj l1vA== 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=vfOi+sxWxQEdcSW5SZ0yLymSO8KBWIuvie2w+aaiDzx5CO/kGXOEF3XDy6YRH0a2Bw +27iF3l2xzA87THNEn8chZdPis5LnhnJo245ISao5yNc4FTU2qFa4X0+suSR/NAlPnoh UYIqkslfM91W9uKfbZ50Wnyk2Fmo/PXUAhxJoe7tf8nHlgqbggreatuYQH3XQpPglk5e K9AAfVqtx0QlTNA1rtLTQemUN4UK4PoBy5+4MexPRlEAhn5M4RR5euL+KzAIRPyjiy4D JUgp1xbQoRFE52LvybOJeFfbbrmKOYJV88S4p9m3rATe+/1gU453weMXL74UnFgaUfTV /Qhg== 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 36si48055289pgn.272.2019.04.16.00.34.56; Tue, 16 Apr 2019 00:35:13 -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 S1728625AbfDPHdb (ORCPT + 99 others); Tue, 16 Apr 2019 03:33:31 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:6194 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728610AbfDPHdb (ORCPT ); Tue, 16 Apr 2019 03:33:31 -0400 Received: from DGGEMS402-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id B19C6A9FD6C45F289170; Tue, 16 Apr 2019 15:33:28 +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, 16 Apr 2019 15:33:21 +0800 From: Chen Zhou To: , , , , , , , , CC: , , , , , , , Chen Zhou Subject: [PATCH v5 4/4] kdump: update Documentation about crashkernel on arm64 Date: Tue, 16 Apr 2019 15:43:29 +0800 Message-ID: <20190416074329.44928-5-chenzhou10@huawei.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190416074329.44928-1-chenzhou10@huawei.com> References: <20190416074329.44928-1-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