Hi, Expert: I have a question about creating page table. If a CPU support 48bit physical address line, then creating page tables(Page size=2MB) will occupy too much memory region. Now, developer could only use PcdUse1GPageTable to avoid occupy too much memory region? Thanks Best wishes, ????? ????????????????????????????????????????????????????? CONFIDENTIAL NOTE: This email contains confidential or legally privileged information and is for the sole use of its intended recipient. Any unauthorized review, use, copying or forwarding of this email or the content of this email is strictly prohibited.