From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7D65E606A31F for ; Fri, 23 Oct 2026 07:39:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=WtwKV3ih; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=EitsfFzC DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Date: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Cc:To:Subject: From:Message-ID:MIME-Version:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=YQM4e21MJzT+25iXYwTywyRRRv9frrL/S2mOl0F2TQ0=; b=WtwKV3ih27JodqcGh665AT0Wuz Rh1MIYoOuSUH1IOat0EZWnMcRhGKQ0LF/yvuqk7XjFiDR0z/jppBZUaN78X+m1aNGkn/Ia8uRMXls J5hRBgRpogF+KcuNil1ktSeCs90eNUSEkiy7Cgftt0x07o96WaIb057hUFih4V7BWIYPfl6Phh7Zg u30XU8oQVx2dQGu4yXJU0+PSeULxNq1htkkycURtUqWbjqzMmLq71sZkLhreOkNjtEVnjpdpZVxHr GrlztXOf96nR/jGCiAQZ/LDRag7F2PA7vtFexU7AOIHVMkRPQ8npRKc4CRz41mI/OHbN/VINsH/iH 7/7RikbQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xK9sM-0000000FmkC-0Ctu; Fri, 23 Oct 2026 07:39:42 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xK9sL-0000000Fmk4-02fF for kexec@lists.infradead.org; Fri, 23 Oct 2026 07:39:41 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 18374602CC; Fri, 23 Oct 2026 07:39:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE63C1F01825; Fri, 23 Oct 2026 07:39:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792741179; bh=YQM4e21MJzT+25iXYwTywyRRRv9frrL/S2mOl0F2TQ0=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=EitsfFzCyRniRAkX5Eca7r5+5Swu1VFhsUNOXdKLxC00cQQzMqofwGLQKAvGG8O60 S49hwgaOMb0hCezmQIgYO9GfFv9bwpF/PusHgRaUHYkZ66KLolLQ+tyGt5nStJcWw+ 07lxe0uzEFvM7LmzTTFzCOi7kUNtC/qmEDhEwjU6Hnhf4SYKCWU0G4a7gGujDTWfDd FvFKgqHU1Zb7mu55BMHISPNtlvk15MJi4NQqU9f5EARqNeFHkt4H5ZV0/OhrCVscmB uVT5Sk081o7wHQVIj9m7X3ML0hphcm+5F6z43OpAjtVb0/CmcrouO46kFre47UC2C1 4Lr4vSdFRNQBA== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH 1/5] riscv: kexec: Disable the MMU before walking the entry list To: "Han Gao" , "Paul Walmsley" , "Palmer Dabbelt" , "Albert Ou" , "Alexandre Ghiti" , "Nathan Chancellor" , "Nick Desaulniers" , "Bill Wendling" , "Justin Stitt" , "Andrew Morton" , "Baoquan He" , "Mike Rapoport" , "Pasha Tatashin" , "Pratyush Yadav" , "Yao Zi" Cc: "Han Gao" , kexec@lists.infradead.org In-Reply-To: <20261023-riscv-kexec-cma-fixes-v1-1-825b90ea23c4@iscas.ac.cn> References: <20261023-riscv-kexec-cma-fixes-v1-0-825b90ea23c4@iscas.ac.cn> <20261023-riscv-kexec-cma-fixes-v1-1-825b90ea23c4@iscas.ac.cn> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 23 Oct 2026 07:39:38 +0000 X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev Sender: "kexec" X-Spam-Status: No, score=-11.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 X-Archived-By: > From: Han Gao >=20 > riscv_kexec_relocate() only switches satp to Bare when it meets an > IND_INDIRECTION entry. Since segments may be allocated from CMA at their > destination, an image can have no indirection pages, and its list then > holds only IND_DONE. The relocation code jumps to the physical entry > point with the MMU still enabled and loops on instruction page faults. >=20 > Switch to Bare mode before reading the first entry, converting the list > pointer from its linear-map address. >=20 > Fixes: 07d24902977e ("kexec: enable CMA based contiguous allocation") > Signed-off-by: Han Gao Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261023-riscv-kexe= c-cma-fixes-v1-0-825b90ea23c4@iscas.ac.cn?part=3D1