Diving deep into Linux DRM bridge chaining
Published at February 12, 2024 · Daniil Klimuk · 14 min read
The post describes the story of implementing bridge-chaining using the DRM/KMS Linux Kernel system on an embedded device with i.mx8mmini SoC...
Categories: firmware miscellaneous
Published at January 31, 2024 · Krystian Hebel · 7 min read
This post shows how we tested simple commands on TwPM, which is our attempt at making TPM more open....
TrenchBoot Anti Evil Maid - Phase 3
Published at January 12, 2024 · Krystian Hebel · 8 min read
This blog post marks completion of next phase of TrenchBoot Anti Evil Maid project for Qubes OS. Even though user experience didn't change too much, the implementation went through a major overhaul....
Categories: bootloader firmware hypervisor os-dev security
Hardware setup for testing Qubes OS via openQA
Published at December 22, 2023 · Sergii Dmytruk · 24 min read
How Qubes OS installation and usage can be automatically tested on hardware with open-source software and firmware....
Categories: miscellaneous os-dev
Upgrading your gears with liquid cooling
Published at December 18, 2023 · Michał Żygowski · 6 min read
The post describes the story of upgrading a MSI PRO Z690-A DDR4 Full PC build with Dasharo firmware from 3mdeb to a 14th Gen Intel CPU and a liquid cooling....
Categories: firmware miscellaneous
Optimizing Firmware Updates: Dasharo Firmware Update Mode for NovaCustom Laptops
Published at November 7, 2023 · Michał Kopeć · 5 min read
Updating your firmware is an important part of keeping your device secure and reliable. Making this process as easy and reliable as possible is, therefore, a big focus for Dasharo. In this article, we'll dive into the latest feature that makes the update process on NovaCustom laptops a bit easier, more user-friendly, and talk about where we want to go from here....
Categories: firmware
TrenchBoot Anti Evil Maid - Phase 2
Published at October 20, 2023 · Michał Żygowski · 10 min read
TrenchBoot Anti Evil Maid project for Qubes OS is progressing. With the addition of TPM 2.0 support, Anti Evil Maid gains much higher adoption and possibilities than ever before....
Categories: bootloader firmware hypervisor os-dev security
Dasharo Compatible with MSI PRO Z690-A Release v1.1.2
Published at September 8, 2023 · Piotr Król · 10 min read
Discover the latest Dasharo v1.1.2 release, designed with you in mind. Enjoy the freedom to personalize with the new logo customization feature, and flash open-source firmware safely with Flash BIOS recovery support. Its about making firmware both fun and secure. Dive in to find out more....
Optimizing SPI communication on STM32 MCUs: a comprehensive guide to high-frequency communication
Published at July 28, 2023 · Artur Kowalski · 22 min read
In this blog post, we delve into the fascinating world of Serial Peripheral Interface (SPI) on STM32 microcontrollers (MCUs). Specifically, we explore how SPI is utilized in TPM chips for communication with PC motherboards. We encounter the challenges of achieving high-frequency SPI communication, especially when operating as a slave, and the specific limitations of STM32L476 MCUs. The article further uncovers the limitations of existing approaches in platforms like Zephyr and STM32 HAL. We then embark on a journey to fix SPI issues, improve DMA performance, and optimize the firmware for high-speed SPI communication. Throughout the blog post, we provide in-depth technical insights and share valuable test results. Join us as we push the boundaries of SPI communication and unlock new possibilities in the world of microcontrollers....
Categories: firmware miscellaneous security
Fobnail Token - example use case
Published at May 19, 2023 · Krystian Hebel · 11 min read
This phase focused on using Fobnail in a real-life use case, namely using it to access LUKS2 decryption key if and only if the PCR measurements are valid...
Categories: security
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