|
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. |
ALSBK
Cross Reference (Contains links to field and bit definitions)
ALSBK Prolog
NAME : HCPALSBK
DESCRIPTION: Access List Services control block.
DSECT : ALSBK
FUNCTION : The ALSBK is used for parameter passing for
diagnose X'240'.
LOCATED BY : Rx - Diagnose X'240'.
CREATED BY : Created in the guest virtual machine's storage and
copied to VMDVOBUF for CP to use.
DELETED BY : Deleted by the guest virtual machine.
SERIALIZED : Guest Virtual Machine is responsible.
COMMENTS : Any changes to this control block may require MACRO
ALSERV to also be changed.
ALSBK Control Block Content
ALSBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ALSBK Access List Services control block. 0000 0 Signed 2 ALSDIAGC Diagnose number. ****************------------ 0002 2 Signed 2 ALSFCODE Diagnose function code. ****************------------ 0004 4 Signed 2 ALSDWLEN Y(ALSSIZE) Size of block in doublewords ****************------------ 0006 6 Signed 2 ALSVERSN H(ALSVERCD) Version field. ****************------------ 00000001 ALSVERCD 1 The version number of this ALSBK. 0008 8 Dbl-Word 8 ALSASIT Address-Space-Identification Token (ASIT) associated with the address space. 0010 16 Signed 4 ALSALET ALET that the access-list owner can use to reference the address space specified by the ALSASIT field. 0014 20 Bitstring 1 ALSTYPFG Type flag. ****************------------ 1... .... ALSWRITE X'80' Indicates the ALE has read/write access to the address space. If the bit is zero then it indicates read only access to the address space. ****************------------ .1.. .... ALSPFAUL X'40' Indicates that page faults using the ALE are eligible for asynchronous processing. ****************------------ 0015 21 Bitstring 1 ALSRSVD2 (3) Reserved for IBM use. The following equate is used to indicate the size of this control block in doulbewords. 00000018 ALSLEN *-ALSBK Length of this control block in bytes. 00000003 ALSSIZE (ALSLEN+7)/8 Size of this control block in doublewords. This will cause an assembly error if this control block gets to large to fit into VMDVOBUF. 0018 24 Address 4 * (0) IEV075 will resu lt if ALSSIZE*8 GT 256 @P3714FM
ALSBK Storage Layout
*** ALSBK - Access List Services control block. * * +-------------+-------------+-------------+-------------+ * 0 | ALSDIAGC | ALSFCODE | ALSDWLEN | ALSVERSN | * +-------------+-------------+-------------+-------------+ * 8 | ALSASIT | * +---------------------------+------+--------------------+ * 10 | ALSALET |:TYPFG| ALSRSVD2 | * +---------------------------+------+--------------------+ * 18 * *** ALSBK - Access List Services control block.
ALSBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----ALSALET 0010
ALSASIT 0008
ALSDIAGC 0000
ALSDWLEN 0004
ALSFCODE 0002
ALSLEN 0015 00000018
ALSPFAUL 0014 40
ALSRSVD2 0015
ALSSIZE 0015 00000003
ALSTYPFG 0014
ALSVERCD 0006 00000001
ALSVERSN 0006
ALSWRITE 0014 80
Last updated on 3 Aug 1999 at 11:39:42 EDT.
Copyright IBM Corporation, 1990, 1999