On 4/24/2025 11:04 AM, Yan Zhao wrote:
From: Xiaoyao Li <xiaoyao.li@xxxxxxxxx> Add a wrapper tdh_mem_page_demote() to invoke SEAMCALL TDH_MEM_PAGE_DEMOTE to demote a huge leaf entry to a non-leaf entry in S-EPT. Currently, the TDX module only supports demotion of a 2M huge leaf entry. After a successful demotion, the old 2M huge leaf entry in S-EPT is replaced with a non-leaf entry, linking to the newly-added page table page. The newly linked page table page then contains 512 leaf entries, pointing to the 2M
2M or 4K?
guest private pages.
[...]
