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Received: from DESKTOP-S9E58SO.localdomain(mailfrom:cp0613@linux.alibaba.com fp:SMTPD_---0XE5sgSS_1793799951 cluster:ay36) by smtp.aliyun-inc.com; Wed, 04 Nov 2026 21:45:55 +0800 From: Chen Pei To: sashiko-bot@kernel.org Cc: alex@ghiti.fr, graf@amazon.com, guoren@kernel.org, kexec@lists.infradead.org, linux-mm@kvack.org, palmer@dabbelt.com, pasha.tatashin@soleen.com, pjw@kernel.org, pratyush@kernel.org, rppt@kernel.org, shuah@kernel.org Subject: Re: [PATCH v2 3/5] riscv: Add support for kexec handover (KHO) Date: Wed, 4 Nov 2026 21:45:47 +0800 Message-ID: <20261104134550.1779-1-cp0613@linux.alibaba.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: <20261103080926.2079-1-cp0613@linux.alibaba.com> <20261103080926.2079-4-cp0613@linux.alibaba.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: o3fsowzhttfbe64thchph5zns3m5uy6h X-Rspam-User: X-Spam-Status: No, score=-16.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS,UNPARSEABLE_RELAY, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=4.0.1 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 526202000F X-HE-Tag: 1793799959-819205 X-HE-Meta: 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 pL5FhIIC Uc+lG+vLU63mee+r21WkIQy7G3MU6KNo/GxUZO7UGLpeUghadsIWZlxRVPLCNaLH0rCiLqwPLiJiu/pJf27dQ4rlD6ZAnDNjOlLEuv7LJDlzn3gX7b9O2ktYNqpH8Us+YaDvQq77bM/n+/ctj4kOroB+aPgRX5QdhdFyu/uMR9W8aMJ2xND3Zjvhp1igNmmc9yYKLMdXvNV9FFXW3q0kuHKz3NtuK1rE53KZGhvy6ci4ko+mGDUmVsy5KOzda7cxaeczKRgVVMt/peeep9QC4iP1DwS8O94gOQD+x Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 > As reported by Sashiko on v1 [1], will kho_reserve_bootmem() fail on 64-bit > RISC-V platforms where DRAM starts at or above 4 GiB, or record a 0-byte > region when all DRAM lies below 4 GiB? Both, confirmed by measurement, and neither is riscv code. Mike Rapoport has a patch that resolves it, so this series carries nothing for it: https://lore.kernel.org/kexec/20261103-kho-bootmem-sizing-v1-1-45aa74098f34@kernel.org/ Best regards, Chen