Systemd v262 addresses TPM PCR scarcity by introducing NvPCRs—additional PCR-like registers in TPM non-volatile memory—with a reworked anchoring design that improves security. The article explains why PCRs are limited, how NvPCRs solve the problem, and provides a hands-on guide to building NvPCRs against a software TPM.
ReBarUEFI is a UEFI DXE driver that enables Resizable BAR on systems lacking official support, improving performance and enabling optimal Intel Arc GPU functionality. Installation requires modifying UEFI firmware, enabling 4G Decoding, and running ReBarState to configure BAR size, with various patches available to fix firmware handling of large 64-bit memory address ranges.