MSICAPAB Back to Index page
 
Prolog 
Control Block Contents 
   MSICAPAB DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.

 
  MSICAPAB Control Block Content Top of page
  




 MSICAPAB DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      MSICAPAB       Message Signaled Interrupt Capability
0000    0 Address      1 *              Capability identifier
0001    1 Address      1 *              Next capability offset
0002    2 Bitstring    2 MSICAPMC (0)   Message control
0002    2 Bitstring    1 MSICAPM1       Byte 1
          1... ....      MSICAP64       B'10000000' MSICAP64 64-bit
                                        address capable
          .111 ....      MSICAPME       B'01110000' MSICAPME Multiple
                                        Message Enable
          .... ....      MSICAE01       B'00000000' MSICAE01 1 vector
          ...1 ....      MSICAE02       B'00010000' MSICAE02 2 vectors
          ..1. ....      MSICAE04       B'00100000' MSICAE04 4 vectors
          ..11 ....      MSICAE08       B'00110000' MSICAE08 8 vectors
          .1.. ....      MSICAE16       B'01000000' MSICAE16 16 vectors
          .1.1 ....      MSICAE32       B'01010000' MSICAE32 32 vectors
          .... 111.      MSICAPMM       B'00001110' MSICAPMM Multiple
                                        Message Capable
          .... ....      MSICAC01       B'00000000' MSICAC01 1 vector
          .... ..1.      MSICAC02       B'00000010' MSICAC02 2 vectors
          .... .1..      MSICAC04       B'00000100' MSICAC04 4 vectors
          .... .11.      MSICAC08       B'00000110' MSICAC08 8 vectors
          .... 1...      MSICAC16       B'00001000' MSICAC16 16 vectors
          .... 1.1.      MSICAC32       B'00001010' MSICAC32 32 vectors
          .... ...1      MSICAPEN       B'00000001' MSICAPEN MSI Enable
0003    3 Bitstring    1 MSICAPM0       Byte 0 B'rrrrrrr---------'
                                        Reserved
          00000001       MSICAPPV       B'00000001' Per-vector masking
                                        capable
0004    4 Address      4 MSIC32MA       Message address
0008    8 Character    2 MSIC32MD       Message data
          0000000A       MSICAPLN       *-MSICAPAB MSI Capability Length
0004    4 Address      8 MSIC64MA       Message address
000C   12 Character    2 MSIC64MD       Message data
          0000000E       MSIC64LN       *-MSICAPAB MSI Capability Length
0004    4 Address      8 MSIC6MMA       Message address
000C   12 Character    2 MSIC6MMD       Message data
000E   14 Bitstring    2 *
0010   16 Bitstring    4 MSIC6MMK       Mask Bits (Vectors 0-n)
0014   20 Bitstring    4 MSIC6MPD       Pending Bits (Vectore 0-n)
          00000018       MSIC6MLN       *-MSICAPAB MSI Capability Length
 
 
  MSICAPAB Storage Layout Top of page
  
          
*** MSICAPAB - Message Signaled Interrupt Capability
*
*     +------+------+------+------+---------------------------+
*   0 |//////|//////|:CAPM1|:CAPM0|         MSIC32MA          |
*     +------+------+------+------+---------------------------+
*   8 |  MSIC32MD   | A
*     +-------------+
*
*** MSICAPAB - Message Signaled Interrupt Capability
          
*** Overlay for MSIC32MA in MSICAPAB
*
*                                 +---------------------------+
*     ...                       4 |        MSIC64MA-          |
*     +---------------------------+-------------+-------------+
*   8 |          -(004)           |  MSIC64MD   | E
*     +---------------------------+-------------+
*
*** Overlay for MSIC32MA in MSICAPAB
          
*** Overlay for MSIC32MA in MSICAPAB
*
*                                 +---------------------------+
*     ...                       4 |        MSIC6MMA-          |
*     +---------------------------+-------------+-------------+
*   8 |          -(004)           |  MSIC6MMD   |/////////////|
*     +---------------------------+-------------+-------------+
*  10 |         MSIC6MMK          |         MSIC6MPD          |
*     +---------------------------+---------------------------+
*  18
*
*** Overlay for MSIC32MA in MSICAPAB
 
 
  MSICAPAB Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
MSICAC01       0002 00
MSICAC02       0002 02
MSICAC04       0002 04
MSICAC08       0002 06
MSICAC16       0002 08
MSICAC32       0002 0A
MSICAE01       0002 00
MSICAE02       0002 10
MSICAE04       0002 20
MSICAE08       0002 30
MSICAE16       0002 40
MSICAE32       0002 50
MSICAPEN       0002 01
MSICAPLN       0008 0000000A
MSICAPMC       0002
MSICAPME       0002 70
MSICAPMM       0002 0E
MSICAPM0       0003
MSICAPM1       0002
MSICAPPV       0003 00000001
MSICAP64       0002 80
MSIC32MA       0004
MSIC32MD       0008
MSIC6MLN       0014 00000018
MSIC6MMA       0004
MSIC6MMD       000C
MSIC6MMK       0010
MSIC6MPD       0014
MSIC64LN       000C 0000000E
MSIC64MA       0004
MSIC64MD       000C
 
This information is based on z/VM 7.4.0 Last updated on 24 Jun 2024 at 11:32:28 EDT.
Copyright IBM Corporation, 1990, 2024