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Fri, 17 May 2024 03:46:19 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-embedded@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Andy Gao Date: Fri, 17 May 2024 18:46:04 +0800 Message-ID: Subject: lowend platforms support such as Cortex-M To: linux-embedded@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Hi, I'm curious about the level of support that modern Linux offers for low-end platforms that lack MMU components, such as the ARM Cortex-M family. Specifically, I'm interested in the memory protection capabilities that Linux provides on these platforms. While the ARM Cortex-M family offers an MPU (memory protection unit), I haven't seen many features related to it in the Linux kernel. Please let me know if I'm mistaken, and any additional information would be greatly appreciated. Thank you! Best Regards, Andy