From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A26E1C433F5 for ; Sat, 7 May 2022 01:42:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:CC:To:Subject:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=pK8bzO3KMsoH56FOLp+Sgi4H4lXO7M+0O5TtlQL+QWE=; b=s122QabzjPIagIBLMmdiZR1GKC Rt1rchvPkEQZYjlqheOXckIiYRe2UpUm5iFa7hzvkt2WPJBsDONAShXxdtjGgZ/4smOXoCcBgSxQ1 duDuffGpX2iq/sJVysf5ff1KOVBLUK6I/YHvgqBy+jS80tegw1LGVgSmma3dnpwpdOAeqT71OoJad 9oHaT8ncEQ0Z3+QXACilU2qrKH6Y+OzcabDLxpy3P5hMkR7NzcGX+tgrsw9HEkdyOYVJPyfz3ncJl WMgJG4vZgU7f5yJK9W0Bk08FD1M6uk4wOF+ligqdLmN+Gq43L0GgcR8PNWNt3bDmACPe859fag+gU ezIGH6zQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nn9RY-005dyL-0m; Sat, 07 May 2022 01:41:12 +0000 Received: from szxga08-in.huawei.com ([45.249.212.255]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nn9RS-005dw3-AJ; Sat, 07 May 2022 01:41:08 +0000 Received: from dggpemm500020.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4Kw9996q3Nz1JBtn; Sat, 7 May 2022 09:39:57 +0800 (CST) Received: from dggpemm500006.china.huawei.com (7.185.36.236) by dggpemm500020.china.huawei.com (7.185.36.49) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Sat, 7 May 2022 09:41:02 +0800 Received: from [10.174.178.55] (10.174.178.55) by dggpemm500006.china.huawei.com (7.185.36.236) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Sat, 7 May 2022 09:41:00 +0800 Subject: Re: [PATCH v24 6/6] docs: kdump: Update the crashkernel description for arm64 To: Baoquan He CC: Thomas Gleixner , Ingo Molnar , Borislav Petkov , , "H . Peter Anvin" , , Dave Young , Vivek Goyal , Eric Biederman , , Catalin Marinas , Will Deacon , , Rob Herring , Frank Rowand , , "Jonathan Corbet" , , Randy Dunlap , Feng Zhou , Kefeng Wang , Chen Zhou , "John Donnelly" , Dave Kleikamp References: <20220506114402.365-1-thunder.leizhen@huawei.com> <20220506114402.365-7-thunder.leizhen@huawei.com> <20220506231451.GB122876@MiWiFi-R3L-srv> From: "Leizhen (ThunderTown)" Message-ID: <6e662eae-e788-13d3-368a-e88ed159fc85@huawei.com> Date: Sat, 7 May 2022 09:41:00 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20220506231451.GB122876@MiWiFi-R3L-srv> Content-Language: en-US X-Originating-IP: [10.174.178.55] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500006.china.huawei.com (7.185.36.236) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220506_184106_773215_9D93FD3E X-CRM114-Status: GOOD ( 16.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 2022/5/7 7:14, Baoquan He wrote: > On 05/06/22 at 07:44pm, Zhen Lei wrote: >> Now arm64 has added support for "crashkernel=X,high" and >> "crashkernel=Y,low". Unlike x86, crash low memory is not allocated if >> "crashkernel=Y,low" is not specified. >> >> Signed-off-by: Zhen Lei >> --- >> Documentation/admin-guide/kernel-parameters.txt | 9 +++++++-- >> 1 file changed, 7 insertions(+), 2 deletions(-) >> >> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt >> index 3f1cc5e317ed4a5..aa44c61114aa4b8 100644 >> --- a/Documentation/admin-guide/kernel-parameters.txt >> +++ b/Documentation/admin-guide/kernel-parameters.txt >> @@ -808,7 +808,7 @@ >> Documentation/admin-guide/kdump/kdump.rst 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 >> @@ -821,7 +821,7 @@ >> that require some amount of low memory, e.g. swiotlb >> requires at least 64M+32K low memory, also enough extra >> low memory is needed to make sure DMA buffers for 32-bit >> - devices won't run out. Kernel would try to allocate at >> + devices won't run out. Kernel would try to allocate >> at least 256M below 4G automatically. >> This one let user to specify own low range under 4G >> for second kernel instead. >> @@ -829,6 +829,11 @@ >> It will be ignored when crashkernel=X,high is not used >> or memory reserved is below 4G. >> >> + [KNL, ARM64] range in low memory. >> + This one let user to specify a low range in DMA zone for > ^ not needed, > Maybe Catalin can fix it when merging. Delete "This one let user to" or the entire sentence? I understand it to be the former. > > Other than this, LGTM, > > Acked-by: Baoquan He > >> + crash dump kernel. >> + It will be ignored when crashkernel=X,high is not used. >> + >> cryptomgr.notests >> [KNL] Disable crypto self-tests >> >> -- >> 2.25.1 >> > > . > -- Regards, Zhen Lei _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel