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Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
WIFBK
Control Block Contents
WIFBK DSECT
Cross Reference (Contains links to field and bit definitions)
WIFBK Prolog
NAME : HCPWIFBK
DESCRIPTION: "Will I Fit" RAS Block
DSECT : WIFBK
FUNCTION : Contains "Will I Fit" calculations used for memory
capacity checking on the destination during a Live Guest
Relocation. The data stored herein was either received
on the destination from the source, or was calculated on
the destination.
LOCATED BY : HCPRLOBK - Through a LIFO chain anchored at RLOWIFBK
CREATED BY : HCPRLLDE - When processing an RLMLG block during LGR
memory checks on the destination
DELETED BY : HCPRLHRR - Destroyed prior to releasing the RLOBK
REFERENCES : Bits defined for WIFERROR by HCPRLOBK RLOCAPCK
SERIALIZED : None.
RELOCATION CONSIDERATIONS : None.
COMPATIBILITY AND MIGRATION CONCERNS : None.
NOTES : None.
WIFBK Control Block Content
WIFBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure WIFBK "Will I Fit" RAS Block 0000 0 Address 4 WIFNEXT (+00) Next WIFBK on chain; a zero value indicates end-of-chain 0004 4 Signed 4 * (+04) Reserved for IBM use 0008 8 Dbl-Word 8 WIFTDONE (+08) Timestamp for when this set of WIF checks was completed Information about this Live Guest Relocation 0010 16 Character 8 WIFSOURC (+10) Name of the source guest 0018 24 Character 8 WIFSKEL (+18) Name of the destination "skeleton" receptor guest 0020 32 Signed 4 WIFVMDBK (+20) Address of the receptor guest VMDBK 0024 36 Signed 4 WIFRLOBK (+24) Address of the RLOBK 0028 40 Signed 4 WIFPASS (+28) Memory copy pass number 0 = Initial elig. checks or first pass n > 0 = Number of the last completed pass 002C 44 Bitstring 1 WIFERROR (+2C) History of all capacity errors found during this pass 1... .... RLOMXGDS X'80' RLOMXGDS The pageable portion of this guest's maximum potential memory footprint exceeds available DASD slots on the destination system .1.. .... RLOCRGDS X'40' RLOCRGDS The pageable portion of this guest's current memory footprint exceeds available DASD slots on the destination system ..1. .... RLOMXGAV X'20' RLOMXGAV This guest's maximum potential memory footprint exceeds the available or stealable memory resources on the destination system ...1 .... RLOCRGAV X'10' RLOCRGAV This guest's current memory footprint exceeds the available or stealable memory resources on the destination system 002D 45 Bitstring 1 * (3) (+2D) Reserved for IBM use 0030 48 Dbl-Word 8 WIFAVAIL (+30) Total destination available memory, in 4K pages 0038 56 Dbl-Word 8 WIFAVRES (+38) Dest. available resident frames 0040 64 Dbl-Word 8 WIFAVXST (+40) Dest. available XSTORE blks 0048 72 Dbl-Word 8 WIFAVAUX (+48) Dest. available aux slots 0050 80 Dbl-Word 8 * (+50) Reserved for IBM use WIF calculations related to the source guest 0058 88 Dbl-Word 8 WIFSREAL (+58) Current actual source guest footprint, in 4K pages 0060 96 Dbl-Word 8 WIFSMAX (+60) Maximum footprint of the source guest, in 4K frames 0068 104 Dbl-Word 8 WIFSRRES (+68) Count of resident frames within the source guest's current actual footprint 0070 112 Dbl-Word 8 WIFSRXST (+70) Count of XSTORE blocks within the source guest's current actual footprint 0078 120 Dbl-Word 8 WIFSRAUX (+78) Count of auxiliary slots within the source guest's current actual footprint 0080 128 Dbl-Word 8 * (+80) Reserved for IBM use 0088 136 Dbl-Word 8 WIFSPGOH (+88) Pageable CP overhead of source guest, in 4K pages 0090 144 Dbl-Word 8 WIFSNPOH (+90) Nonpageable CP overhead of source guest, in 4K frames WIF calculations related to the receptor guest 0098 152 Dbl-Word 8 WIFDREAL (+98) Current actual receptor guest footprint, in 4K pages 00A0 160 Dbl-Word 8 WIFDRRES (+A0) Count of resident frames within the receptor guest's current actual footprint 00A8 168 Dbl-Word 8 WIFDRXST (+A8) Count of XSTORE blocks within the receptor guest's current actual footprint 00B0 176 Dbl-Word 8 WIFDRAUX (+B0) Count of auxiliary slots within the receptor guest's current actual footprint 00B8 184 Dbl-Word 8 * (+B8) Reserved for IBM use 00000018 WIFSIZE (*-WIFBK+7)/8 Block size in double words 000000C0 WIFBSIZE WIFSIZE*8 Block size in bytes
WIFBK Storage Layout
*** WIFBK - "Will I Fit" RAS Block
*
* +---------------------------+---------------------------+
* 0 | WIFNEXT |///////////////////////////|
* +---------------------------+---------------------------+
* 8 | WIFTDONE |
* +-------------------------------------------------------+
* 10 | WIFSOURC |
* +-------------------------------------------------------+
* 18 | WIFSKEL |
* +---------------------------+---------------------------+
* 20 | WIFVMDBK | WIFRLOBK |
* +---------------------------+------+--------------------+
* 28 | WIFPASS |:ERROR|////////////////////|
* +---------------------------+------+--------------------+
* 30 | WIFAVAIL |
* +-------------------------------------------------------+
* 38 | WIFAVRES |
* +-------------------------------------------------------+
* 40 | WIFAVXST |
* +-------------------------------------------------------+
* 48 | WIFAVAUX |
* +-------------------------------------------------------+
* 50 |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 58 | WIFSREAL |
* +-------------------------------------------------------+
* 60 | WIFSMAX |
* +-------------------------------------------------------+
* 68 | WIFSRRES |
* +-------------------------------------------------------+
* 70 | WIFSRXST |
* +-------------------------------------------------------+
* 78 | WIFSRAUX |
* +-------------------------------------------------------+
* 80 |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 88 | WIFSPGOH |
* +-------------------------------------------------------+
* 90 | WIFSNPOH |
* +-------------------------------------------------------+
* 98 | WIFDREAL |
* +-------------------------------------------------------+
* A0 | WIFDRRES |
* +-------------------------------------------------------+
* A8 | WIFDRXST |
* +-------------------------------------------------------+
* B0 | WIFDRAUX |
* +-------------------------------------------------------+
* B8 |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* C0
*
*** WIFBK - "Will I Fit" RAS Block
WIFBK Cross Reference
Symbol Dspl Value -------------- ---- ----- RLOCRGAV 002C 10 RLOCRGDS 002C 40 RLOMXGAV 002C 20 RLOMXGDS 002C 80 WIFAVAIL 0030 WIFAVAUX 0048 WIFAVRES 0038 WIFAVXST 0040 WIFBSIZE 00B8 000000C0 WIFDRAUX 00B0 WIFDREAL 0098 WIFDRRES 00A0 WIFDRXST 00A8 WIFERROR 002C WIFNEXT 0000 WIFPASS 0028 WIFRLOBK 0024 WIFSIZE 00B8 00000018 WIFSKEL 0018 WIFSMAX 0060 WIFSNPOH 0090 WIFSOURC 0010 WIFSPGOH 0088 WIFSRAUX 0078 WIFSREAL 0058 WIFSRRES 0068 WIFSRXST 0070 WIFTDONE 0008 WIFVMDBK 0020
Copyright IBM Corporation, 1990, 2011