During July 2025, Xiaoyao Li focused on kernel-level development in the geerlingguy/linux repository, addressing a critical issue in KVM TDX virtualization. Li engineered a patch in C that removed the reporting of TDVMCALLINFO_GET_QUOTE from userspace, aligning TDVMCALLINFO exposure with the GHCI base specification. This change resolved ambiguity in the handling of TDVMCalls and freed up a bit for future use, improving maintainability and preparing the codebase for upcoming features. Leveraging expertise in kernel development and system programming, Li’s work enhanced consistency between kernel and userspace, demonstrating a deep understanding of virtualization internals and specification compliance.