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 85767C433F5 for ; Mon, 9 May 2022 04:07:05 +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=NHULoi3F5isK1SYK8oDWpUN17ifZ+3vqzecTMEgK5+g=; b=CYmEkDEadShCrn 1qHdGAqqHKqFz1J144CQh3/b0RLVmtKJJdiRxCSUrdB0xHnSjKC0Lgj2IeqGIR3QPKSubEoNqnlR1 apPWo0NtP+kZJZp9kaphOune9wtHIevyx1ErMW4zekiANDzjuUOtl/2K5Ab7q7a0JUbwcy0k00/5N tK7w0RqKD9TMrkGeBsbS9CbFK3dzfHKunhuGRAyXdnpeD6Zydw1/VKsuh7iiFgxjPiTlCvia8YMdE omyw+lfVFif/Hmuuymrk/bvl72/73pnbtMTMpvQnPGnq4emEiQD0oWFNJJjxfpY3aVTNcQvFt2o5U p3Mjw/TGphqCsPp6RiyQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nnueL-00CIPy-5z; Mon, 09 May 2022 04:05:33 +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 1nnueH-00CIOz-VA for linux-arm-kernel@lists.infradead.org; Mon, 09 May 2022 04:05:31 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1652069129; 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=FKpZ+Ah3zelx5R9OuHUazNjKjbfFkmtgJjzbVYW/aR4=; b=cG9OCCIvS4aBKtV49/E14WLT6dsvRBKIwVo1SHswme58mptqloh7xTVwd7xEPR6Wp84/wo qB0fLXVqd6eUvDm7FjPnFXDMny8U/McNUp6FW+8kubZHygi+QIvuaQJ7TapipChlHtgA3A +DRoevMj+CwO9Pv1IJNheqGcRXLqpxI= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-655-DKEPQ_o2MQWLJ-6UYvp_0A-1; Mon, 09 May 2022 00:05:25 -0400 X-MC-Unique: DKEPQ_o2MQWLJ-6UYvp_0A-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id B0C52185A794; Mon, 9 May 2022 04:05:24 +0000 (UTC) Received: from localhost (ovpn-13-212.pek2.redhat.com [10.72.13.212]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B78CB40D1B9A; Mon, 9 May 2022 04:05:23 +0000 (UTC) Date: Mon, 9 May 2022 12:05:21 +0800 From: Baoquan He To: Catalin Marinas Cc: "Leizhen (ThunderTown)" , 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, 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: References: <20220506114402.365-1-thunder.leizhen@huawei.com> <20220506114402.365-7-thunder.leizhen@huawei.com> <20220506231451.GB122876@MiWiFi-R3L-srv> <6e662eae-e788-13d3-368a-e88ed159fc85@huawei.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 2.84 on 10.11.54.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220508_210530_141536_4E5767C7 X-CRM114-Status: GOOD ( 33.37 ) 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 05/07/22 at 07:22pm, Catalin Marinas wrote: > On Sat, May 07, 2022 at 11:30:59AM +0800, Baoquan He wrote: > > On 05/07/22 at 09:41am, Leizhen (ThunderTown) wrote: > > > 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. > > > > Oh, I mean the 'to' is not needed. "This one let user specify ....". The > > 'to' is a grammer mistake. > > Slightly more correct is "This one lets the user specify..." > > I can fix them up when applying. Right, thx. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel