Seonglae ChoPage directory entity
Two-level
cr3 is base address register of Intel page directorySize in configurable. Regular paging is 4kb and extended paging is 4mb (page size bit).
1024 + 1 (double level)
- dirty bit means edited page
- accessed bit means read
x64
4-level paging
PML4T(Page Map Level 4 Table), PDPT(Page Directory Pointer Table), PDT(Page Directory Table), PT(Page Table)
Two page sizes
- 4K: regular paging
- 2M: huge page
