Worked on the acidanthera/audk repository to improve stability and correctness in EFI CXL component event logging within UEFI firmware. Addressed a bug by renaming the CXL error macro to EFI_CXL_ERROR_PCIE_DEV_ID and updating all related references, ensuring accurate mapping of CXL event types across Cper.h and MdePkg/Include/Guid. This change prevented incorrect type referencing in CXL component events, enhancing maintainability and traceability of the codebase. The work involved careful updates in C and demonstrated attention to detail in firmware development, focusing on aligning event log structures with evolving specifications for more reliable system behavior.