Revision history   OpenPOWER Library

 10.2.9. PSL Data Segment Register (PSL_DSR_An)

 The PSL Data Segment Register (PSL_DSR_An) contains the segment table entry associated with a PSL data storage interrupt.

 There is one register for each PSL slice. Access to these registers should be privileged. These registers must be accessed using a single 64-bit store operation.

Access Type

Read Only

 Base Address Offset

 (P2_Base |P2(n) + x'0070'; where n is an AFU number.

B

VSID

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

VSID

Ks

Kp

N

L

C

Rsvd

LP

Reserved

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

Bits

Field Name

Description

 0:1

 B

 Segment size selector.

 The segment size selector defines the size of the segment for the current data storage fault.

 For more information about the Ks bit, see the SLB entry section in the Power ISA, Book III .

 2:51

 VSID

 Virtual segment ID.

 The field contains the virtual segment ID for the current data storage fault.

 For more information about the Ks bit, see the SLB entry section in the Power ISA, Book III .

 52

 Ks

 Supervisor (privileged) state storage key.

 For more information about the Ks bit, see the SLB entry section in the Power ISA, Book III .

 53

 Kp

 Problem state storage key.

 For more information about the Kp bit, see the SLB entry section in the Power ISA, Book III .

 54

 N

 No-execute segment if N = '1'.

 For more information about the N bit, see the SLB entry section in the Power ISA, Book III .

 55

 L

 Virtual page size selector bit 0.

 For more information about the L bit, see the SLB entry section in the Power ISA, Book III .

 56

 C

 Class.

 For more information about the C bit, see the SLB entry section in the Power ISA, Book III .

 57

 Reserved

 Reserved.

 58:59

 LP

 Virtual page size selector bits 1:2.

 For more information about the LP field, see the SLB entry section in the Power ISA, Book III .

 60:63

 Reserved

 Set to zeros.


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