Expand description
PD configuration bits description
Modules§
- A
- Accessed; indicates whether software has accessed the 4-MByte page referenced by this entry.
- D
- Dirty; indicates whether software has written to the 4-MByte page referenced by this entry.
- G
- Global; if CR4.PGE = 1, determines whether the translation is global; ignored otherwise.
- P
- Present; must be 1 to map a 4-MByte page.
- PAT
- If the PAT is supported, indirectly determines the memory type used to access the 4-MByte page referenced by this entry; otherwise, reserved (must be 0)
- PCD
- Page-level cache disable.
- PS
- Page size; if set this entry maps a 4-MByte page; otherwise, this entry references a page directory.
- PWT
- Page-level write-through.
- RW
- Read/write; if 0, writes may not be allowed to the 4-MByte page referenced by this entry.
- US
- User/supervisor; if 0, user-mode accesses are not allowed to the 4-MByte page referenced by this entry.