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fwupd/plugins/msr
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Mario Limonciello fa8bfc7f4a msr: make tsme security attribute match kernel doc more closely 
The kernel documentation for AMD memory encryption includes information
on both SME and SEV, but they are separate attributes. Read the attributes
separately.

Link: https://www.kernel.org/doc/html/v5.16/x86/amd-memory-encryption.html
2022-01-20 06:52:51 -06:00
..
fu-plugin-msr.c msr: make tsme security attribute match kernel doc more closely 2022-01-20 06:52:51 -06:00
fwupd-msr.conf msr: Add a new plugin to detect the Intel DCI state 2020-07-16 20:13:06 +01:00
meson.build Make the HSI tests optional for embedded targets 2021-11-29 09:30:57 +00:00
msr.quirk Simplify the quirk file format 2021-03-03 08:30:34 +00:00
README.md trivial: update markdown for pre-commit style 2021-07-18 14:42:47 -05:00

README.md

MSR

Introduction

This plugin checks if the Model-specific registers (MSRs) indicate the Direct Connect Interface (DCI) is enabled.

DCI allows debugging of Intel processors using the USB3 port. DCI should always be disabled and locked on production hardware as it allows the attacker to disable other firmware protection methods.

The result will be stored in a security attribute for HSI.

External Interface Access

This plugin requires read access to /sys/class/msr.