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 B5A97C00140 for ; Tue, 2 Aug 2022 12:19:05 +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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=tdO7btpv3fIb/YqL65ZJito3764d5d9AgOpmR5anXk0=; b=zHWSuzkIR0O2F/ +KdahiTyV3Nmbt+ODHC7AGou1VwTXq1dcE5DBJAk8QnirOowpyDMgrKrAsuMQNYx/W+S/BOoAEVBw TEjg/vHj6vZJWGUzxoK6w15sDaHGQTajBzXNeJfi4NLqU40tkkfcDTKDZMSjDXy+uWcNljsjH53CW iz/1eoGzZmswjoJh5eLxKOEATRjDE5X8Q/NqNzK7VMGirf/BJ/bEG6EARGPE906Yy8AX4LqDFOwpo Ra3GR9ZqEMKIcqhMtBpViyCQXY6FM5rDjQyuZtymyhkHKX+Vl5+sl+nbsdlpZpyhaRbHjqbSmgV/S aSpj2mdo5BHpfQMhMK1g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oIqrP-00DsPS-MJ; Tue, 02 Aug 2022 12:18:55 +0000 Received: from out30-54.freemail.mail.aliyun.com ([115.124.30.54]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oIqr2-00Ds1q-NU; Tue, 02 Aug 2022 12:18:35 +0000 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R791e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045192;MF=xianting.tian@linux.alibaba.com;NM=1;PH=DS;RN=24;SR=0;TI=SMTPD_---0VLBrreT_1659442708; Received: from localhost(mailfrom:xianting.tian@linux.alibaba.com fp:SMTPD_---0VLBrreT_1659442708) by smtp.aliyun-inc.com; Tue, 02 Aug 2022 20:18:29 +0800 From: Xianting Tian To: paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, anup@brainfault.org, heiko@sntech.de, guoren@kernel.org, mick@ics.forth.gr, alexandre.ghiti@canonical.com, bhe@redhat.com, vgoyal@redhat.com, dyoung@redhat.com, corbet@lwn.net, Conor.Dooley@microchip.com Cc: kexec@lists.infradead.org, linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, crash-utility@redhat.com, huanyi.xj@alibaba-inc.com, heinrich.schuchardt@canonical.com, k-hagio-ab@nec.com, hschauhan@nulltrace.org, yixun.lan@gmail.com, Xianting Tian Subject: [PATCH V5 5/6] riscv: crash_core: Export kernel vm layout, phys_ram_base Date: Tue, 2 Aug 2022 20:18:17 +0800 Message-Id: <20220802121818.2201268-6-xianting.tian@linux.alibaba.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220802121818.2201268-1-xianting.tian@linux.alibaba.com> References: <20220802121818.2201268-1-xianting.tian@linux.alibaba.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220802_051832_970314_67C149BA X-CRM114-Status: UNSURE ( 6.46 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org These infos are needed by the kdump crash tool. Since these values change from time to time, it is preferable to export them via vmcoreinfo than to change the crash's code frequently. Signed-off-by: Xianting Tian --- .../admin-guide/kdump/vmcoreinfo.rst | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst index 8419019b6a88..6b76284a503c 100644 --- a/Documentation/admin-guide/kdump/vmcoreinfo.rst +++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst @@ -595,3 +595,34 @@ X2TLB ----- Indicates whether the crashed kernel enabled SH extended mode. + +RISCV64 +======= + +VA_BITS +------- + +The maximum number of bits for virtual addresses. Used to compute the +virtual memory ranges. + +PAGE_OFFSET +----------- + +Indicates the virtual kernel start address of direct-mapped RAM region. + +phys_ram_base +------------- + +Indicates the start physical RAM address. + +MODULES_VADDR|MODULES_END|VMALLOC_START|VMALLOC_END|VMEMMAP_START|VMEMMAP_END +----------------------------------------------------------------------------- +KASAN_SHADOW_START|KASAN_SHADOW_END|KERNEL_LINK_ADDR|ADDRESS_SPACE_END +---------------------------------------------------------------------- + +Used to get the correct ranges: + MODULES_VADDR ~ MODULES_END : Kernel module space. + VMALLOC_START ~ VMALLOC_END : vmalloc() / ioremap() space. + VMEMMAP_START ~ VMEMMAP_END : vmemmap region, used for struct page array. + KASAN_SHADOW_START ~ KASAN_SHADOW_END : kasan shadow space. + KERNEL_LINK_ADDR ~ ADDRESS_SPACE_END : Kernel link and BPF space. -- 2.17.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv