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 62369C43458 for ; Tue, 30 Jun 2026 07:49:41 +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:MIME-Version: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=6GM7twoz2kY3Y8F/VzoBIFBU4PR6cnMNHB0Vee7bSQE=; b=soITCHG2NUlq0Y EusAgp0BGTKa9Kp4IFYNQ7ldyGOA3QuxbUTX4ahneffZe8hpUxJvIGZC6oVS6lETCRSA1GqSlCB35 Qh1QjF6G2kRUw8SE1w62EO7sxsSGf/qJ75NJd/XaVaZiUp0WJJeG+y60e0IA2TW2y2AeRPa5evPOt XXqKjIx8nISZm4dTQPKUrSvRK6K2MCG+4WOfFyXK0WzCTTWFL/75xmNWmdpikUlQpaC0H00km96zF rk5AZZKSqXnadTin+wyapR/4kUQZ9oBGzfe1qkb4CTTrtYBcq+pL2hKdRGSNlTB1UCdRl1YEmc06a dFAthG6xTGhAIVK4J97w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1weTDk-0000000GBLO-099n; Tue, 30 Jun 2026 07:49:28 +0000 Received: from mail-pl1-x644.google.com ([2607:f8b0:4864:20::644]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1weTDK-0000000GAb1-3IOL for linux-riscv@lists.infradead.org; Tue, 30 Jun 2026 07:49:06 +0000 Received: by mail-pl1-x644.google.com with SMTP id d9443c01a7336-2c99672293cso22039385ad.2 for ; Tue, 30 Jun 2026 00:49:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1782805742; x=1783410542; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=miEM+ZI1eBAN6H+hUm7y5SHAIdsM2tNi01WsyWumT6E=; b=ixQLsS+A63rePmdkpfuTziJ9qMnyOYNgdJ8e1gnTM+Ur1phooF0RHmJaeOt6ihnOOn 2rJ8Wmbu4nwxv8grCgjQhwhf7NBsYkOiWYd59AFRbwoKk+aS9CnDz2glNOVKMBT6pxSe lTCdGF7kufKHQMD1lyOY6j5cOPgoUTdbZy2bQIfosrnqoXp/HWXh9buC4Toy92HUTfMA hdy7kYnRYvixFQbGxf4GLLixV7lISyq6Y0DEe8XoiBP7Rs/GAkoRl0pmSUBveUskjUmN Y21vJkjmTieCHzeGf8hPQ4tn5dyAVrRF9IYCqYItisS9plHQ7/hSUZRlU4flvbChsdJG x0WA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782805742; x=1783410542; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=miEM+ZI1eBAN6H+hUm7y5SHAIdsM2tNi01WsyWumT6E=; b=S6FOVXNaQMjSOWrV7Az13yxwBeUnwaflyV96AgFCs4PWgoCpjaLk1f7rMo2eADi2ef vB5GVrHn4GEn5HvGwffc4PXMZ+1rp68cVnIcsl4T7gEkT0Bsuzsvk2E6iRMTOReBcrsV +0oI0E86TUIjT5LqPdvjyNwQfnlRzjD0dXWknlE3IG8Nl7pwRRjIs53NcDrtyMUqcVSK EhyUSSlb3ySBJLdYMvYfRDdVvC9q12/6eZ8H/f9qxfFI8zkvFlvnv1VE62jr7nf3VTii ieQT2T/05ObsL6NgvwISiuGXwB/hYMdB8lTwDfxJpyH8nil1ket9YiwoKEQdG554XouE VpJw== X-Forwarded-Encrypted: i=1; AHgh+RrA7eDnGHlTyRt2S2R8OfftYJnSGL2NpneVGzZgY9nT1yheJ2Gptq+A0xA/S+raRfjbfdr8XvRwSM0+0A==@lists.infradead.org X-Gm-Message-State: AOJu0YzheC61RjiRadlwFLAfCm4CyM/9N/RUYHPFKhvgabULhR9zUNFX 946F14gbMkm6ToFr0mLs4ZB/1wKWJh5xMna45+10ss4zsWAYGwuANUbw X-Gm-Gg: AfdE7ck1NjQuVs2aL1xqeQsaMVJJsWdJi81Urb7TJ+iBLoenUN2rqQ/ja/2dsGL5mpY SFuBVzdPJFC1WtxvzE/v4M6V/IQ1InVrLVJW2gb/4H1hQlI1iK0+jz5tCN1V3lDUg9N1j7YV9sq bgEzT22gFzgC2dXekpsZBnTlkot8TlToQnT42eUgGUgTox6pT/+blGgoi4VQ5Qa2CTV/+7bu3qZ VsNqXqihPOLYQCWk0eNL4m5voy2E/MexBJ1qP8e7a1Kg//0LQwXtxoEh9i847gPpv+yNGCOQT3O a6WTU3WjoA9fdlKgPwUYCW5d6x1gUMz7b+NtmH7tXzsYghdk3sKj+B7jdVZO/38KXa+6LUBs/JJ ZDq68uqWVGuqY1kqYVdlc/2/dJgZxJi5UX96EezrZJIq/mLS4yiSW5HP0a5ChMJ1X3CpNE4/dyv /qhDh0hLeWJeo0cAa+GYT3yng+dg== X-Received: by 2002:a17:903:186:b0:2c0:a746:7b16 with SMTP id d9443c01a7336-2ca2d8a616amr19688075ad.22.1782805741701; Tue, 30 Jun 2026 00:49:01 -0700 (PDT) Received: from intel.company.local ([210.184.73.204]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ca382a2d3dsm7821045ad.55.2026.06.30.00.48.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jun 2026 00:49:01 -0700 (PDT) From: Wandun Chen To: chenhuacai@kernel.org, kernel@xen0n.name, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, robh@kernel.org, saravanak@kernel.org, bhe@redhat.com, rppt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, kexec@lists.infradead.org, iommu@lists.linux.dev, zhaomeijing@lixiang.com Cc: catalin.marinas@arm.com, will@kernel.org, alex@ghiti.fr, akpm@linux-foundation.org, pasha.tatashin@soleen.com, pratyush@kernel.org, ruirui.yang@linux.dev, m.szyprowski@samsung.com, robin.murphy@arm.com Subject: [PATCH v4 09/10] riscv: kdump: exclude non-dumpable reserved memory regions from vmcore Date: Tue, 30 Jun 2026 15:47:13 +0800 Message-ID: <20260630074715.4126796-10-chenwandun1@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260630074715.4126796-1-chenwandun1@gmail.com> References: <20260630074715.4126796-1-chenwandun1@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260630_004902_928625_2A0275F2 X-CRM114-Status: GOOD ( 10.47 ) 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: , 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 From: Wandun Chen Apply the same non-dumpable reserved memory filtering to RISC-V kdump as was done for arm64. Use of_reserved_mem_kdump_exclude() to drop flagged regions from the elfcorehdr PT_LOAD segments, and of_reserved_mem_kdump_nr_ranges() to pre-size the crash_mem array. Signed-off-by: Wandun Chen --- arch/riscv/kernel/machine_kexec_file.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/riscv/kernel/machine_kexec_file.c b/arch/riscv/kernel/machine_kexec_file.c index 59d4bbc848a8..25359d583bc3 100644 --- a/arch/riscv/kernel/machine_kexec_file.c +++ b/arch/riscv/kernel/machine_kexec_file.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -64,6 +65,7 @@ static int prepare_elf_headers(void **addr, unsigned long *sz) nr_ranges = 1; /* For exclusion of crashkernel region */ walk_system_ram_res(0, -1, &nr_ranges, get_nr_ram_ranges_callback); + nr_ranges += of_reserved_mem_kdump_nr_ranges(); cmem = kmalloc_flex(*cmem, ranges, nr_ranges); if (!cmem) @@ -77,6 +79,8 @@ static int prepare_elf_headers(void **addr, unsigned long *sz) /* Exclude crashkernel region */ ret = crash_exclude_mem_range(cmem, crashk_res.start, crashk_res.end); + if (!ret) + ret = of_reserved_mem_kdump_exclude(cmem); if (!ret) ret = crash_prepare_elf64_headers(cmem, true, addr, sz); -- 2.43.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv