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 ABB74C433F5 for ; Fri, 6 May 2022 23:16:07 +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:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/4FA6zDeSbddbOwLcwJEYOX59MpneA8xBH0vBWGc2Ik=; b=eKoSpRgAYShcjD K8SrCae/a6h59p5KkUnxz9EmLMLy3Bl4vGZUdq/NQNBq6RM6LMZJa5DwVX4S2DMt2iSUwlDMUccz/ LMqreFOo+eShuiqTtKSy5exygG8G+p7sw7oFvxz7zH3T4eMzfYCqM5E78b3UCouuUr1NhVIwZXkNE edS7BUp9TS0KXHZtho52VfTZ6tC/OwDhhKsrBUIStHiLmUpGI7jOfHkzrhhNUywFUKdVeE0On/uiH hPzAwjEroPEtKlo11eXU5y6FvuwJi4IPud4IyK5KRq5yycl8uPjYCpI6Al+6fupNa4c783LhxD6zr 87XM7TnMgjYAM/qYPk+g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nn7AE-005LT1-Tt; Fri, 06 May 2022 23:15:11 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nn7AA-005LQv-9U for linux-arm-kernel@lists.infradead.org; Fri, 06 May 2022 23:15:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1651878905; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=fsjPSSDEheSxxSuL7Ltb8dQNk6VTQw2Y864IsSu4LBg=; b=hheU4z2R9MCY8nu0f36qjPLy5Q4hUf41O26F7IxSiDzafH8ILsLsG31vKoaQyjPZpVdpUp XgCDAaidxefwgQwW+N8x5rd8tMySDvdxYXIkbI32893A30y2KHfVa2Kyjh//jWXAMgIlTE 4wGhwn9tcE1d/Hey/Jdcm0BvjCM6IOU= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-215-6e3mBSoQNiWUVALHVxPMfA-1; Fri, 06 May 2022 19:14:59 -0400 X-MC-Unique: 6e3mBSoQNiWUVALHVxPMfA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7BCC01C05199; Fri, 6 May 2022 23:14:58 +0000 (UTC) Received: from localhost (ovpn-12-33.pek2.redhat.com [10.72.12.33]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 7B7C97AD9; Fri, 6 May 2022 23:14:54 +0000 (UTC) Date: Sat, 7 May 2022 07:14:51 +0800 From: Baoquan He To: Zhen Lei Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H . Peter Anvin" , linux-kernel@vger.kernel.org, Dave Young , Vivek Goyal , Eric Biederman , kexec@lists.infradead.org, Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, Rob Herring , Frank Rowand , devicetree@vger.kernel.org, Jonathan Corbet , linux-doc@vger.kernel.org, Randy Dunlap , Feng Zhou , Kefeng Wang , Chen Zhou , John Donnelly , Dave Kleikamp Subject: Re: [PATCH v24 6/6] docs: kdump: Update the crashkernel description for arm64 Message-ID: <20220506231451.GB122876@MiWiFi-R3L-srv> References: <20220506114402.365-1-thunder.leizhen@huawei.com> <20220506114402.365-7-thunder.leizhen@huawei.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220506114402.365-7-thunder.leizhen@huawei.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220506_161506_478363_E291E242 X-CRM114-Status: GOOD ( 25.00 ) 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 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. 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 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel