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53a49b4ac1
fwupd/plugins/msr
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Mario Limonciello 53a49b4ac1 Restore AMD SME check 
Starting with linux kernel 5.18 the SME flag will be removed from
/proc/cpuinfo when it's not activated.

Link: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=08f253ec3767bcfafc5d32617a92cee57c63968e
2022-02-17 10:08:33 -06:00
..
fu-plugin-msr.c Restore AMD SME check 2022-02-17 10:08:33 -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 Restore AMD SME check 2022-02-17 10:08:33 -06:00
msr.conf Restore AMD SME check 2022-02-17 10:08:33 -06:00
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.