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Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
AFFBK
Cross Reference (Contains links to field and bit definitions)
AFFBK Prolog
Name : HCPAFFBK
Description: AFFinity management control BlocK
DSECT : AFFBK
Function : The AFFBK maps the storage in HCPRCC starting at
label HCPRCCAF, extending for the length of this
block. When the AFFBK is copied via the 'COPY'
psuedo-op into any module other than HCPRCC, it will
generate a DSECT. When copied in HCPRCC, however,
it will generate code to actually define the fields.
The AFFBK is used by the processor feature affinity
management routines as an area to do bookkeeping
and recording.
Located by : HCPRCCAF is the address of the start of the block.
Created by : The block is DCed in module HCPRCC.
Deleted by : Never deleted
Serialized : Alterations and references to the AFFBK are
serialized by the Scheduler Lock.
AFFBK Control Block Content
AFFBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure AFFBK AFFinity management control BlocK workarea. 0000 0 Signed 4 AFFPFTR (31) Processor features A data area containing a fullword for each processor (indexed by PFXINDEX, or VMDHPLDV/2**5) describing the features available on each processor. 0000 0 Address 4 * Initialize for Master 007C 124 Address 4 AFFLFEAT Loadable features This is a mask of feature bits containing a one in the position of each feature which is "loadable". A feature which is loadable cannot be shared by VMDBKs without some work involved to accomplish the switch. This is a static mask. 00000080 AFFLEN *-AFFBK Length in bytes of the AFFBK 00000010 AFFSIZE (AFFLEN+7)/8 Size in doublewords of the AFFBK
AFFBK Storage Layout
*** AFFBK - AFFinity management control BlocK * * +-------------------------------------------------------+ * 0 | | * = AFFPFTR = * | +---------------------------+ * 78 | | AFFLFEAT | * +---------------------------+---------------------------+ * 80 * *** AFFBK - AFFinity management control BlocK *** Overlay for AFFPFTR in AFFBK * * +---------------------------+ * 0 |///////////////////////////| 4 * +---------------------------+ * *** Overlay for AFFPFTR in AFFBK
AFFBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----AFFLEN 007C 00000080
AFFLFEAT 007C
AFFPFTR 0000
AFFSIZE 007C 00000010
Last updated on 3 Aug 1999 at 11:38:58 EDT.
Copyright IBM Corporation, 1990, 1999