|
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. |
DALBK
Cross Reference (Contains links to field and bit definitions)
DALBK Prolog
NAME : HCPDALBK
DESCRIPTION: Dumped Access List Block
DSECT : DALBK
FUNCTION : Contains Dump information for access lists
LOCATED BY : DFMDALBK
CREATED BY : This control block is used to map 4K record(s)
in dumps. HCPVMXCD uses this control block when
putting the access list information into the 4K
records for VMDUMPs. HCPDMP uses this control block
when putting the access list information into the 4K
records for Hard ABEND dumps and Non-Destructive
dumps, and HCPSAD uses this block for S/A Dumps.
DELETED BY : Not applicable
COMMENTS : DALPAGCT is the number of access list
entries that a one page DALBK can map.
If DALVALID is greater than DALPAGCT, then
when the dump viewing facility has processed
DALPAGCT entries it must read the next 4K page
and base the DALBK at that page. DALENTRY(1)
on the first DALBK will be the first valid or
revoked access list entry. DALENTRY(1) on
the second DALBK will be the (DALPAGCT+1)th
valid or revoked access list entry.
DALENTRY(1) on the third DALBK will be the
(2*DALPAGCT + 1)th valid or revoked access
list entry and so on.
The fields DALVALID and DALINVLD will be set
in the first and last DALBK.
DALBK Control Block Content
DALBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure DALBK Dumped Access List Block 0000 0 Character 8 DALBKID Identification string 0008 8 Signed 2 DALVALID No. of valid/revoked entries 000A 10 Signed 2 DALINVLD Number of invalid entries 0000000C DALMLEN *-DALBK Length of Main section Repeatable section follows - re-used depending upon the number of entries. 000C 12 Signed 2 DALENTRY (0) 000C 12 Character 8 DALASIT eASIT 0014 20 Signed 4 DALALET ALET 0018 24 Character 33 DALSPCID Space id in string form 0039 57 Character 2 * Reserved for IBM use 003B 59 Bitstring 1 DALSTATE State of access list entry 1... .... DALREVKD X'80' Entry-is-revoked bit .1.. .... DALREADO X'40' Access is Read/only. If not on, then access is Read/Write ..1. .... DALPAGEX X'20' Access is pagex 00000030 DALENTLN *-DALASIT Length of each entry 00000008 DALSIZE (*-DALBK+7)/8 Size in double words DALPAGCT will contain the number of access list entries that a one page DALBK can map 00000055 DALPAGCT (4096-DALMLEN)/DALENTLN
DALBK Storage Layout
*** DALBK - Dumped Access List Block * * +-------------------------------------------------------+ * 0 | DALBKID | * +-------------+-------------+---------------------------+ * 8 | DALVALID | DALINVLD | DALASIT- | * +-------------+-------------+---------------------------+ * 10 | -(00C) | DALALET | * +---------------------------+---------------------------+ * 18 | | * = DALSPCID = * | +-------------+------+---------------------------+ * 38 | |/////////////|:STATE| 3C * +------+-------------+------+ * *** DALBK - Dumped Access List Block
DALBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----DALALET 0014
DALASIT 000C
DALBKID 0000
DALENTLN 003B 00000030
DALENTRY 000C
DALINVLD 000A
DALMLEN 000A 0000000C
DALPAGCT 003B 00000055
DALPAGEX 003B 20
DALREADO 003B 40
DALREVKD 003B 80
DALSIZE 003B 00000008
DALSPCID 0018
DALSTATE 003B
DALVALID 0008
Last updated on 3 Aug 1999 at 11:49:24 EDT.
Copyright IBM Corporation, 1990, 1999