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Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
SGPBK
Control Block Contents
SGPBK DSECT
Cross Reference (Contains links to field and bit definitions)
SGPBK Prolog
NAME : HCPSGPBK
DESCRIPTION: Segment Space/Saved System Parameter
Control Block.
DSECT : SGPBK
FUNCTION : The HCPSGPBK is a parameter area used for
Diagnose X'64' calls and calls to HCPNSJ.
LOCATED BY : None
CREATED BY : HCPNSI, HCPNSL, HCPNSJ
DELETED BY : HCPNSI, HCPNSL, HCPNSJ
SGPBK Control Block Content
SGPBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure SGPBK Segment Space/Saved System
Parameter
0000 0 Signed 4 SGPSSTRT Beginning address of segment
Space
0004 4 Signed 4 SGPSEND Ending address of segment Space
0008 8 Address 4 SGPMSEG Member segment SNTBK address
000C 12 Address 4 SGPSEGSP Segment Space SNTBK address
0010 16 Address 4 SGPSDFPT SDFBK Address
0014 20 Address 4 SGPSHRBK SHRBK address
0018 24 Address 4 SGPSPNAM Address of Space name to be
loaded - obtained from DIAG 64
issuer
001C 28 Address 4 SGPSPSNT Address of the SNTBK on the
SPTape Queue that will used to
defer Loads and IPLs.
0020 32 Signed 4 SGPREGS (13) Register save area
0054 84 Character 24 SGPNSABK NSABK Area
006C 108 Signed 4 SGPRETCD Error return code
0070 112 Address 4 SGPXSHRQ Excess SHRBK Queue
Error return code EQUATES for SGPRETCD
00000000 SGPRC0 0 User is authorized
00000004 SGPRC4 4 User not authorized
00000008 SGPRC8 8 Insufficient Guest virtual
storage to load/IPL the Saved
Segment/NSS
0000000C SGPRC12 12 Named Space not found
00000010 SGPRC16 16 Paging error
00000014 SGPRC20 20 Configuration error
00000018 SGPRC24 24 Unable to continue
0000001C SGPRC28 28 Two contiguous pages of
storage are not available for
segment table
0000001E SGPRC30 30 Invalid CP Segment load
00000024 SGPRC36 36 Overlay condition occurred
00000028 SGPRC40 40 NAMESAVE statement not found
in the CP directory during
authorization checking.
0000002C SGPRC44 44 I/O error reading directory
00000030 SGPRC48 48 370 guest attempted to load a
Segment Space above the 16Meg
line.
00000034 SGPRC52 52 Attempting to load non shared
when already loaded shared.
00000038 SGPRC56 56 Attempting to load >= start
address of define storage
config's 2nd extent. -------- End
of EQUATES for SGPRETCD
***************--------
ESM parameter area
0074 116 Address 4 SGPRSNTA Address of SNTBK for ESM
0078 120 Address 4 SGPRSEGN Address of Space name for ESM
007C 124 Bitstring 1 SGPESMFN Type of ESM request
Equates for SGPESMFN flag
1... .... SGPAUDIT X'80' Audit-only flag
.1.. .... SGPRSTDC X'40' Restricted segment
..1. .... SGPSKIPA X'20' Skip UDR and ESM call
indicator -------- End of EQUATES
for SGPESMFN
***************--------
007D 125 Bitstring 1 SGPESMST Indicates whether the ESM has
been called
Equates for SGPESMST flag
1... .... SGPESMD X'80' Indicates the ESM has been
called -------- End of EQUATES
for SGPESMST
***************--------
007E 126 Bitstring 1 SGPDTYPE Type of load requested
Equates for SGPDTYPE flag
1... .... SGPNSJSL X'80' HCPNSJ was called for
system load.
.1.. .... SGPNSJSY X'40' HCPNSJ was called for Guest
IPL.
...1 .... SGPNSLNO X'10' HCPNSL was called load no
overlay
.... .1.. SGPNSLNS X'04' HCPNSL was called load
non-shared
.... ..1. SGPNSLSL X'02' HCPNSL was called for a
system load
.... .... SGPNSLSH X'00' HCPNSL was called load
shared -------- End of EQUATES
for SGPDTYPE
***************--------
007F 127 Bitstring 1 SGPLOCKS Lock flag
Equates for SGPLOCKS flag
1... .... SGPSSEGS X'80' Saved Segment SNTBK Queue
Lock held shared (NSUSGQLK)
.1.. .... SGPSSEGE X'40' Saved Segment SNTBK Queue
Lock held exclusive(NSUSGQLK)
..1. .... SGPSSYSS X'20' NSS SNTBK Queue Lock held
shared (NSUSYQLK)
...1 .... SGPSSYSE X'10' NSS SNTBK Queue Lock held
exclusively. (NSUSYQLK)
.... 1... SGPSDFQE X'08' *NSS SDF Queue lock held
exclusively (NSUSDFLK)
.... .1.. SGPSDFQS X'04' *NSS SDF Queue lock held
shared (NSUSDFLK)
.... ..1. SGPVMDSH X'02' VMDBK/SHRBK Queue lock held
exclusively (VMDSHRLK)
.... ...1 SGPSNTSH X'01' SNTBK/SHRBK Queue lock held
exclusively (SNTSHRLK) --------
End of EQUATES for SGPLOCKS
***************--------
0080 128 Bitstring 1 SGPNPARM Input Parameter for HCPNSLSL and
HCPNSJSL
0081 129 Bitstring 1 * (3) Reserved for IBM use
00000084 SGPSIZEB (*-SGPBK) Length in Bytes
00000011 SGPSIZE (*-SGPBK+7)/8 Length in
doublewords
SGPBK Storage Layout
*** SGPBK - Segment Space/Saved System Parameter
*
* +---------------------------+---------------------------+
* 0 | SGPSSTRT | SGPSEND |
* +---------------------------+---------------------------+
* 8 | SGPMSEG | SGPSEGSP |
* +---------------------------+---------------------------+
* 10 | SGPSDFPT | SGPSHRBK |
* +---------------------------+---------------------------+
* 18 | SGPSPNAM | SGPSPSNT |
* +---------------------------+---------------------------+
* 20 | |
* = SGPREGS =
* | +---------------------------+
* | | |
* +---------------------------+ |
* 58 | |
* = SGPNSABK =
* | +---------------------------+
* 68 | | SGPRETCD |
* +---------------------------+---------------------------+
* 70 | SGPXSHRQ | SGPRSNTA |
* +---------------------------+------+------+------+------+
* 78 | SGPRSEGN |:ESMFN|:ESMST|:DTYPE|:LOCKS|
* +------+--------------------+------+------+------+------+
* 80 |:NPARM|////////////////////| 84
* +------+--------------------+
*
*** SGPBK - Segment Space/Saved System Parameter
SGPBK Cross Reference
Symbol Dspl Value -------------- ---- ----- SGPAUDIT 007C 80 SGPDTYPE 007E SGPESMD 007D 80 SGPESMFN 007C SGPESMST 007D SGPLOCKS 007F SGPMSEG 0008 SGPNPARM 0080 SGPNSABK 0054 SGPNSJSL 007E 80 SGPNSJSY 007E 40 SGPNSLNO 007E 10 SGPNSLNS 007E 04 SGPNSLSH 007E 00 SGPNSLSL 007E 02 SGPRC0 0070 00000000 SGPRC12 0070 0000000C SGPRC16 0070 00000010 SGPRC20 0070 00000014 SGPRC24 0070 00000018 SGPRC28 0070 0000001C SGPRC30 0070 0000001E SGPRC36 0070 00000024 SGPRC4 0070 00000004 SGPRC40 0070 00000028 SGPRC44 0070 0000002C SGPRC48 0070 00000030 SGPRC52 0070 00000034 SGPRC56 0070 00000038 SGPRC8 0070 00000008 SGPREGS 0020 SGPRETCD 006C SGPRSEGN 0078 SGPRSNTA 0074 SGPRSTDC 007C 40 SGPSDFPT 0010 SGPSDFQE 007F 08 SGPSDFQS 007F 04 SGPSEGSP 000C SGPSEND 0004 SGPSHRBK 0014 SGPSIZE 0081 00000011 SGPSIZEB 0081 00000084 SGPSKIPA 007C 20 SGPSNTSH 007F 01 SGPSPNAM 0018 SGPSPSNT 001C SGPSSEGE 007F 40 SGPSSEGS 007F 80 SGPSSTRT 0000 SGPSSYSE 007F 10 SGPSSYSS 007F 20 SGPVMDSH 007F 02 SGPXSHRQ 0070
Copyright IBM Corporation, 1990, 2001