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Require the Memory Attribute Protocol if Enhanced Memory Protection is supported - #170

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@vstehle

@vstehle vstehle commented Aug 20, 2026

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Require the EFI_MEMORY_ATTRIBUTE_PROTOCOL when the firmware supports Enhanced Memory Protection.

This allows boot components such as shim, systemd or the Linux EFI stub to control memory permissions.

https://microsoft.github.io/mu/WhatAndWhy/enhancedmemoryprotection/#enhanced-uefi-memory-protection
https://uefi.org/sites/default/files/resources/Hardening%20the%20Core%20Enhanced%20Memory%20Protection_Beebe.pdf

@xypron

xypron commented Aug 25, 2026

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@vstehle @apalos
Are there any plans to implement this in U-Boot?

@apalos

apalos commented Aug 25, 2026

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@vstehle @apalos Are there any plans to implement this in U-Boot?

@xypron I've already raised this as part of Arm CoreCollective. I don't have a definitive answer yet on whether members are willing fund this, but I'll keep you updated.

Comment thread source/chapter2-uefi.rst Outdated
Require the EFI_MEMORY_ATTRIBUTE_PROTOCOL when the firmware supports
Enhanced Memory Protection, to allow boot components such as shim, systemd
or the Linux EFI stub to control memory permissions.

Link: https://microsoft.github.io/mu/WhatAndWhy/enhancedmemoryprotection/
Suggested-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com>

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3 participants