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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
RELOCATION CONSIDERATIONS : None
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 Dbl-Word 8 SGPSSTRT Beginning address of segment Space 0008 8 Dbl-Word 8 SGPSEND Ending address of segment Space 0010 16 Address 4 SGPMSEG Member segment SNTBK address 0014 20 Address 4 SGPSEGSP Segment Space SNTBK address 0018 24 Address 4 SGPSDFPT SDFBK Address 001C 28 Address 4 SGPSHRBK SHRBK address 0020 32 Address 4 SGPSPNAM Address of Space name to be loaded - obtained from DIAG 64 issuer 0024 36 Address 4 SGPSPSNT Address of the SNTBK on the SPTape Queue that will used to defer Loads and IPLs. 0028 40 Signed 4 SGPREGS (13) Register save area 005C 92 Character 24 SGPNSABK NSABK Area 0074 116 Signed 4 SGPRETCD Error return code 0078 120 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 007C 124 Address 4 SGPRSNTA Address of SNTBK for ESM 0080 128 Address 4 SGPRSEGN Address of Space name for ESM 0084 132 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 ***************-------- 0085 133 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 ***************-------- 0086 134 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 ***************-------- 0087 135 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 ***************-------- 0088 136 Bitstring 1 SGPNPARM Input Parameter for HCPNSL and HCPNSJ 0089 137 Bitstring 1 * (3) Reserved for IBM use 0000008C SGPSIZEB (*-SGPBK) Length in Bytes 00000012 SGPSIZE (*-SGPBK+7)/8 Length in doublewords
SGPBK Storage Layout
*** SGPBK - Segment Space/Saved System Parameter
*
* +-------------------------------------------------------+
* 0 | SGPSSTRT |
* +-------------------------------------------------------+
* 8 | SGPSEND |
* +---------------------------+---------------------------+
* 10 | SGPMSEG | SGPSEGSP |
* +---------------------------+---------------------------+
* 18 | SGPSDFPT | SGPSHRBK |
* +---------------------------+---------------------------+
* 20 | SGPSPNAM | SGPSPSNT |
* +---------------------------+---------------------------+
* 28 | |
* = SGPREGS =
* | +---------------------------+
* | | |
* +---------------------------+ |
* 60 | |
* = SGPNSABK =
* | +---------------------------+
* 70 | | SGPRETCD |
* +---------------------------+---------------------------+
* 78 | SGPXSHRQ | SGPRSNTA |
* +---------------------------+------+------+------+------+
* 80 | SGPRSEGN |:ESMFN|:ESMST|:DTYPE|:LOCKS|
* +------+--------------------+------+------+------+------+
* 88 |:NPARM|////////////////////| 8C
* +------+--------------------+
*
*** SGPBK - Segment Space/Saved System Parameter
SGPBK Cross Reference
Symbol Dspl Value -------------- ---- ----- SGPAUDIT 0084 80 SGPDTYPE 0086 SGPESMD 0085 80 SGPESMFN 0084 SGPESMST 0085 SGPLOCKS 0087 SGPMSEG 0010 SGPNPARM 0088 SGPNSABK 005C SGPNSJSL 0086 80 SGPNSJSY 0086 40 SGPNSLNO 0086 10 SGPNSLNS 0086 04 SGPNSLSH 0086 00 SGPNSLSL 0086 02 SGPRC0 0078 00000000 SGPRC12 0078 0000000C SGPRC16 0078 00000010 SGPRC20 0078 00000014 SGPRC24 0078 00000018 SGPRC28 0078 0000001C SGPRC30 0078 0000001E SGPRC36 0078 00000024 SGPRC4 0078 00000004 SGPRC40 0078 00000028 SGPRC44 0078 0000002C SGPRC48 0078 00000030 SGPRC52 0078 00000034 SGPRC56 0078 00000038 SGPRC8 0078 00000008 SGPREGS 0028 SGPRETCD 0074 SGPRSEGN 0080 SGPRSNTA 007C SGPRSTDC 0084 40 SGPSDFPT 0018 SGPSDFQE 0087 08 SGPSDFQS 0087 04 SGPSEGSP 0014 SGPSEND 0008 SGPSHRBK 001C SGPSIZE 0089 00000012 SGPSIZEB 0089 0000008C SGPSKIPA 0084 20 SGPSNTSH 0087 01 SGPSPNAM 0020 SGPSPSNT 0024 SGPSSEGE 0087 40 SGPSSEGS 0087 80 SGPSSTRT 0000 SGPSSYSE 0087 10 SGPSSYSS 0087 20 SGPVMDSH 0087 02 SGPXSHRQ 0078
Copyright IBM Corporation, 1990, 2011