Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.

PPRLG

Prolog  

Control Block Contents  
   PPRLG DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  


PPRLG Prolog

 Name       : HCPPPRLG
 Description: Pending Page Release Log
 DSECT      : PPRLG
 Function   : This block contains address pairs that represent
              guest real page frames that are in the pending
              release state.
 Located by : VMDPPRLG points to the PPRLG for that guest.
 Created by : HCPFST when B2FF is issued and no log exits.
 Deleted by : HCPPPRFR after processing the log.  HCPRPB.

 

PPRLG Control Block Content


PPRLG DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      PPRLG          Pending Page Release Log
0000    0 Dbl-Word     8 PPRLGENT       PPRLG entry
          00000008       PPRLGESZ       *-PPRLGENT PPRLG entry size in
                                        bytes
0008    8 Dbl-Word     8 * (59)
          000001E0       PPRLGOFS       *-PPRLG Displacement to Last
                                        entry
01E0  480 Dbl-Word     8 PPRLE          Last entry
          000001E8       PPRLGSZ        *-PPRLG Log size in bytes
          0000003D       PPRLGDWD       PPRLGSZ/8 Log size in doublewords
0000    0 Signed       4 PPRLO          Low page range
0004    4 Signed       4 PPRHI          High address of range

 

PPRLG Storage Layout

          
*** PPRLG - Pending Page Release Log
*
*     +-------------------------------------------------------+
*   0 |                       PPRLGENT                        |
*     +-------------------------------------------------------+
*   8 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
* 1E0 |                        PPRLE                          |
*     +-------------------------------------------------------+
* 1E8
*
*** PPRLG - Pending Page Release Log
          
*** Overlay for PPRLGENT in PPRLG
*
*     +---------------------------+---------------------------+
*   0 |          PPRLO            |          PPRHI            |
*     +---------------------------+---------------------------+
*   8
*
*** Overlay for PPRLGENT in PPRLG

 

PPRLG Cross Reference

Symbol         Dspl Value
-------------- ---- -----
PPRHI          0004
PPRLE          01E0
PPRLGDWD       01E0 0000003D
PPRLGENT       0000
PPRLGESZ       0000 00000008
PPRLGOFS       0008 000001E0
PPRLGSZ        01E0 000001E8
PPRLO          0000

This information is based on z/VM V4R2.0. Last updated on 17 Oct 2001 at 16:08:01 EDT.
Copyright IBM Corporation, 1990, 2001