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Intel IA-32 User Manual

Page 115

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Vol. 3A 3-35

PROTECTED-MODE MEMORY MANAGEMENT

Figure 3-20. Format of Page-Directory-Pointer-Table, Page-Directory, and Page-Table

Entries for 4-KByte Pages with PAE Enabled

63

36 35

32

Base

Reserved (set to 0)

Page-Directory-Pointer-Table Entry

31

12 11

9 8

5 4 3 2

0

P

C
D

P

W

T

Avail

Page-Directory Base Address

Addr.

Res.

Reserved

63

36 35

32

Base

Reserved (set to 0)

Page-Directory Entry (4-KByte Page Table)

31

12 11

9 8 7 6 5 4 3 2 1 0

P

C

0

D

P

P

W

T

Page-Table Base Address

Addr.

0 0

A

R

/

W

U

/

S

63

36 35

32

Base

Reserved (set to 0)

Page-Table Entry (4-KByte Page)

31

12 11

9 8 7 6 5 4 3 2 1 0

P

C

D

D

P

P

W

T

Page Base Address

Addr.

G

A

R

/

W

U

/

S

Avail

Avail

P

1

P

A
T