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Exploring Lenovo T480 NVRAM Variables With CHIPSEC

In this blog post I compare the output produced by the CHIPSEC 1.8.1 chipsec_util uefi nvram command to that produced by the UEFI shell dmpstore utility and discover a small number of interesting differences.

Accessing ACPI SLIC From UEFI Shell

In this post, I discuss activation of Microsoft Windows using the SLIC mechanism, and provide source code for a UEFI shell utility that exposes all available SLIC information.

UEFI Utility to Read TPM 2.0 PCRs

In this post, I discuss a number of key TPM 2.0 features such as multiple algorithm support and PCR banks, and provide the source code for a UEFI shell utility to display the digests from the first 24 PCRs of a TPM 2.0 implementation.

Use 010 Editor to Obtain Header Fields From Intel Microcode Binary Files

In this post, I use an 010 Editor script and template to extract and display specific microcode header fields for a set of Intel microcode binary blobs.

Examining Intel Microcode in Lenovo Firmware Updates

This post demonstrates how to extract Intel microcode updates from a Lenovo firmware update using UEFItool and subsequently use an 010 Editor template to extract useful information from the extracted Intel microcode updates.