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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 06EBAD58CBE for ; Mon, 23 Mar 2026 01:44:40 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4ffGF31Tchz2ySB; Mon, 23 Mar 2026 12:44:39 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=113.46.200.221 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1774230279; cv=none; b=BBusy7ogY3IveZztlGJCJAUr3TLwota9ZhXk8TwB3/kCy+G7s/bu7LQxNCr/AKxt42IbcFhIZFsIlG3pEcsxIxACNdy8PnywutVQzIzUnRt87/hAklfpd0iSYGUOtPmGCFYVf97TBZqMqMJUa2ZHd+gCh2lhF6SQkwtmeq5tOEnuEXYEUtv7jbaJc/GO4RFqKNBayu1DS830QAFIl3tzLjgD+7zgnczXj5QvcFdu8DsnJ/AwLoxaFmDQZf1NH28EI5IvYKZRPodNToyAPYdjq5cxkKroXovB4Zmxc7y4kabfZ/SXVXpyy7lXuUNqdEdo22stLrabDHgXw93HiXvJUg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1774230279; c=relaxed/relaxed; bh=pSMsxgVPNUNI/+qvUNa5KlapyBTF883qZfslgr8BRmc=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=E/iH3Z03w3tW38XU54xNlAPwocf1q8ZWLRd2LqIe5jUkUoPbtSfkoqoxVqK3ouCpDqY6Q7KWDM6AuuRIpxM5ttjCcLLXUV2Tt8RfN4+70vKfWAzs2pnPNxbrV3R945/2ckMAUgJIJzeFbxXuytC7Umo6P5epgDDcfi2pId8jFIfbTO5+F5ARh9+ZgtvaGkTc51riCbT0T5klQaMwv2/VYlO2StD7C6XY35CAeABvPVRHGQlT1EueWEhzDsUssaQNGmEmG8kd2vgdt0s1EbzJyuCOXgji7f/gqBUt21/vgWzuD16T/3HBHizaU8HNsMKFzvdxPwMLw5Bin/0Nkt3K6A== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; dkim=pass (1024-bit key; unprotected) header.d=huawei.com header.i=@huawei.com header.a=rsa-sha256 header.s=dkim header.b=APNd9D7y; dkim-atps=neutral; spf=pass (client-ip=113.46.200.221; helo=canpmsgout06.his.huawei.com; envelope-from=ruanjinjie@huawei.com; receiver=lists.ozlabs.org) smtp.mailfrom=huawei.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=huawei.com header.i=@huawei.com header.a=rsa-sha256 header.s=dkim header.b=APNd9D7y; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=huawei.com (client-ip=113.46.200.221; helo=canpmsgout06.his.huawei.com; envelope-from=ruanjinjie@huawei.com; receiver=lists.ozlabs.org) Received: from canpmsgout06.his.huawei.com (canpmsgout06.his.huawei.com [113.46.200.221]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4ffGDz6T4fz2xQ1 for ; Mon, 23 Mar 2026 12:44:33 +1100 (AEDT) dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=pSMsxgVPNUNI/+qvUNa5KlapyBTF883qZfslgr8BRmc=; b=APNd9D7y2JNHp4D4QOOD++LuCQoXp2QHGLVpl/YYZBBISWJ4nCvGXpi11BSZy4k87VAZexJaK DmZQwZXpcskLul5yIs2ECY31UOgkgDmF+7RBLtrOpvZZtNV6++VEVf15kNxt/OZz+Dny78134bp B+Weax2Qis1460o5BUYRBJI= Received: from mail.maildlp.com (unknown [172.19.162.144]) by canpmsgout06.his.huawei.com (SkyGuard) with ESMTPS id 4ffG5q0HjQzRhRZ; Mon, 23 Mar 2026 09:38:23 +0800 (CST) Received: from dggpemf500011.china.huawei.com (unknown [7.185.36.131]) by mail.maildlp.com (Postfix) with ESMTPS id 3283840567; Mon, 23 Mar 2026 09:44:27 +0800 (CST) Received: from [10.67.109.254] (10.67.109.254) by dggpemf500011.china.huawei.com (7.185.36.131) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 23 Mar 2026 09:44:22 +0800 Message-ID: Date: Mon, 23 Mar 2026 09:44:21 +0800 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.0 Subject: Re: [PATCH v8 0/5] arm64/riscv: Add support for crashkernel CMA reservation Content-Language: en-US To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , References: <20260302035315.3892241-1-ruanjinjie@huawei.com> From: Jinjie Ruan In-Reply-To: <20260302035315.3892241-1-ruanjinjie@huawei.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.67.109.254] X-ClientProxiedBy: kwepems200002.china.huawei.com (7.221.188.68) To dggpemf500011.china.huawei.com (7.185.36.131) If there are no other review comments, I'd like to ask if this is ready to be merged. On 2026/3/2 11:53, Jinjie Ruan wrote: > The crash memory allocation, and the exclude of crashk_res, crashk_low_res > and crashk_cma memory are almost identical across different architectures, > This patch set handle them in crash core in a general way, which eliminate > a lot of duplication code. > > And add support for crashkernel CMA reservation for arm64 and riscv. > > Rebased on v7.0-rc1. > > Basic second kernel boot test were performed on QEMU platforms for x86, > ARM64, and RISC-V architectures with the following parameters: > > "cma=256M crashkernel=256M crashkernel=64M,cma" > > Changes in v8: > - Fix the build issues reported by kernel test robot and Sourabh. > - Link to v7: https://lore.kernel.org/all/20260226130437.1867658-1-ruanjinjie@huawei.com/ > > Changes in v7: > - Correct the inclusion of CMA-reserved ranges for kdump kernel in of/kexec > for arm64 and riscv. > - Add Acked-by. > - Link to v6: https://lore.kernel.org/all/20260224085342.387996-1-ruanjinjie@huawei.com/ > > Changes in v6: > - Update the crash core exclude code as Mike suggested. > - Rebased on v7.0-rc1. > - Add acked-by. > - Link to v5: https://lore.kernel.org/all/20260212101001.343158-1-ruanjinjie@huawei.com/ > > Changes in v5: > - Fix the kernel test robot build warnings. > - Sort crash memory ranges before preparing elfcorehdr for powerpc > - Link to v4: https://lore.kernel.org/all/20260209095931.2813152-1-ruanjinjie@huawei.com/ > > Changes in v4: > - Move the size calculation (and the realloc if needed) into the > generic crash. > - Link to v3: https://lore.kernel.org/all/20260204093728.1447527-1-ruanjinjie@huawei.com/ > > Jinjie Ruan (4): > crash: Exclude crash kernel memory in crash core > crash: Use crash_exclude_core_ranges() on powerpc > arm64: kexec: Add support for crashkernel CMA reservation > riscv: kexec: Add support for crashkernel CMA reservation > > Sourabh Jain (1): > powerpc/crash: sort crash memory ranges before preparing elfcorehdr > > .../admin-guide/kernel-parameters.txt | 16 +-- > arch/arm64/kernel/machine_kexec_file.c | 39 +++---- > arch/arm64/mm/init.c | 5 +- > arch/loongarch/kernel/machine_kexec_file.c | 39 +++---- > arch/powerpc/include/asm/kexec_ranges.h | 1 - > arch/powerpc/kexec/crash.c | 5 +- > arch/powerpc/kexec/ranges.c | 101 +----------------- > arch/riscv/kernel/machine_kexec_file.c | 38 +++---- > arch/riscv/mm/init.c | 5 +- > arch/x86/kernel/crash.c | 89 +++------------ > drivers/of/fdt.c | 9 +- > drivers/of/kexec.c | 9 ++ > include/linux/crash_core.h | 9 ++ > kernel/crash_core.c | 89 ++++++++++++++- > 14 files changed, 178 insertions(+), 276 deletions(-) >