Revision history   OpenPOWER Library

 10.1.23. PSL Lookaside Buffer Invalidate Selection Register (PSL_LBISEL) 

 PSL Lookaside Buffer Invalidate Selection Register (PSL_LBISEL) contains the process identifier (PID) and the logical partition ID (LPID) used to select which SLB and TLB entries to invalidate.

 This register is typically used by the hypervisor when the AFU is operating in a shared programming mode.

 There is only one register for the PSL. Access to this register should be privileged. This register must be accessed using a single 64-bit store operation.

Access Type

Read/Write

 Base Address Offset

 P1_Base + x'0080'

PID

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

LPID

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

 0:31

 PID

 Process identifier (PID).

 The PID field is used to selectively invalidate only the SLB entries for the specified process ID that match the ESID field.

 32:63

 LPID

 Logical partition ID (LPID).

 The LPID field is used to selectively invalidate only the SLB entries for the specified logical partition that match the ESID field.


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