Our goals and exercises in this chapter

• E#4: Enable nested paging with empty nested paging structures
• Build up nested paging structures on nested page fault as required, which includes:
  • Handling and normalizing EPT violation and #VMEXIT(NPF)
  • Resolving a PA of a snapshot-backed-page that maps the GPA that caused fault
  • E#5: Building nested paging structures for GPA -> PA translation
• E#6: Implement copy-on-write and fast memory revert mechanism