RCCBK Back to Index page
 
Prolog 
Control Block Contents 
   RCCBK 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.


  RCCBK Prolog Top of page
 
 NAME       : HCPRCCBK
 DESCRIPTION: RCPU DATA AREA MAPPING
 DSECT      : RCCBK
 FUNCTION   :
              This control block maps the RCPU data area and
              defines constants used by the RCPU subsystem.
  OCATED IN -
              HCPRCCCM - RPCU common data area
 CREATED BY :
              System initialization
 DELETED BY :
              System termination
 SERIALIZED :
 RELOCATION CONSIDERATIONS : None
 
 
  RCCBK Control Block Content Top of page
 

 RCCBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure RCCBK RCPU DATA AREA MAPPING SAVBK management zappable constants and queues 0000 0 Dbl-Word 8 RCCURCQ SAVBK reclaim queue (unsorted) 0008 8 Address 4 RCCSRCQ SAVBK reclaim queue (sorted) 000C 12 Address 4 RCCSFQ SAVE frame queue 0010 16 Signed 4 RCCRCNUM Number of SAVBKs being reclaimed 0014 20 Signed 4 RCCSVNUM Number of SAVBKs allocated 0018 24 Dbl-Word 8 RCCSFQL (6) SAVE frame queue lock 0048 72 Signed 8 RCCICFAB Incomplete frame reclaim time limit in seconds 0050 80 Signed 8 RCCLNINT HCPSAMFS sampling period, 10 sec. 0058 88 Signed 4 RCCNOINT Number of intervals to average .... 1... RCCMXAVS 8 RCCMXAVS Scaling factor for below &VX1NASG 005C 92 Signed 4 RCCMAXAV Maximum percentage of buffers available 0060 96 Signed 4 RCCMINSV Minimum number of saveareas per processor 0064 100 Address 1 RCCSTFLG Free storage availability flags 1... .... RCCSAVL X'80' RCCSAVL Free storage available for SAVBKs 0065 101 Bitstring 1 * (3) Reserved for future IBM use MP Defer Data Area Checkpoint determination intervals 0068 104 Signed 8 RCCMPDLY 1/10 second, until adjusted by HCPISR to be a function of the minor timeslice. 0070 112 Dbl-Word 8 * Reserved for IBM use 0078 120 Address 1 RCCMPDAC MP Defer Active Test & Set flag 0079 121 Bitstring 3 * Reserved "CP Loss of Control" deferred work queues 007C 124 Address 4 RCCMPCQ0 Work for which 0 or more MP checkpoints have occurred 0080 128 Address 4 RCCMPCQ1 Work for which 1 or more MP checkpoints have occurred "Loss of Control" deferred work queues 0084 132 Address 4 RCCMPSQ0 Work for which 0 or more MP checkpoints have occurred 0088 136 Address 4 RCCMPSQ1 Work for which 1 or more MP checkpoints have occurred RCCCPUAA: Array of CPU addresses for online processors Function : Used to get the CPU address of a CPU with a given PFXINDEX. The PFXINDEX divided by 2 is the displacement of a CPU's entry in this array. VMDHDSV can also be used to find a CPU's entry in this array due to the direct relationship (VMDHDVSH) between VMDHDSV and PFXINDEX for a given CPU. Finally, since VMDHDSV is just the displacement of the DSVBK in the array of DSVBKs (HCPDSVST), the address of a DSVBK can be used to index into this array as well. The following are useful relationships: 1) VMDHDSV = addr(DSVBK) - addr(HCPDSVST) 2) PFXINDEX = VMDHDSV / 2**VMDHDVSH 3) RCCCPUAA index = PFXINDEX / 2 Serialized : This array should be changed only when the VARY lock is held or for the IPL processor at initialization time. No serialization needed to examine an entry. When an entry in the array is being examined, a value of x'FFFF' means the processor is no longer available. Any value other than x'FFFF' means either that the processor is available or that the processor has been varied off but the 2 minute wait interval before its storage is released has not expired. Do not assume that the processor is available just because its entry in this array is other than x'FFFF'. 008C 140 Signed 2 RCCCPUAA (64) CPU address array STSI response data areas. Function : A managed, in memory copy of STSI output. The following STSI responses are maintained: 1.1.1 and 1.2.2. For STSI 1.1.1 and 1.2.2, an additional pair of data areas is maintained that contains the most recent responses with non-transient states indicated. See SSI1TRNS and HCPSSICC. These are needed for Diagnose x'2E0'. References to these data areas during CP initialization must test the pointers to ensure they are initialized (nonzero pointer) before using the response areas. HCPSSIBK maps the STSI responses. Serialized : These data areas are updated only during system initialization while running on a single processor, or later while running on the SYSTEM VMDBK. Each time the STSI responses are updated, a new data area is allocated and the pointers below are updated. The prior response area is released by an MPDFR call to HCPSSIRL to allow existing references to continue to use the old response areas until their next loss of control. No serialization is provided to consumers of these data areas that allows access over a loss of control. The STSI response area may have been released during the loss of control. No form of serialization can provide a self-consistency guarantee for the pair of responses for STSI 1.1.1 and 1.2.2 since changes may occur between the STSI instruction invocations that affect values reported in both STSI responses. For example, changes to capability values reported by STSI 1.2.2 may be explained by corresponding changes to CCR and CAI values reported by STSI 1.1.1. 010C 268 Address 4 RCC111 Most recent STSI 1.1.1 response. 0110 272 Address 4 RCC122 Most recent STSI 1.2.2 response. 0114 276 Address 4 RCC111NT Non-transient STSI 1.1.1 resp. 0118 280 Address 4 RCC122NT Non-transient STSI 1.2.2 resp. RCCEMSxx: EMSBK Cleanup Counts and Type flags Function : Track statistics for cleanup of EMSBKs found on the PFXPG of a processor during VARY processing. The individual counts are for different points in the processing of VARY OFF PROC and VARY ON PROC. If the EMSBKs are cleaned up after the HCPMPCFL processing, then the EMSBKs may have been waiting to be processed for 2 minutes or more. This should be avoided because the result will be that the tasks waiting for completion of HCPSGP's processing will appear to hang while the EMSBK is on the PFXEMSAN queue. Currently, this is only the case for HCPSGPNC's callers indicated by RCCEMSNF.RCCEMSNC being on. There should be a count field and flag byte for each caller of HCPSGPDR. Serialized : All RCCEMSxx fields are serialized by HCPRCCVA - VARY Processor Lock. 011C 284 Signed 4 RCCEMSFL EMSBK cleanups done by hcpmpcFL. 0120 288 Signed 4 RCCEMSOF EMSBK cleanups done by hcpmpsOF. 0124 292 Signed 4 RCCEMSON EMSBK cleanups done by hcpmpsON. 0128 296 Signed 4 RCCEMSFS (0) EMSBK cleanup flags. 0128 296 Bitstring 1 RCCEMSLF EMSBK type flags for RCCEMSFL. 1... .... RCCEMSAR X'80' RCCEMSAR Alt Proc Recovery type EMSBKs. .1.. .... RCCEMSSM X'40' RCCEMSSM Switch Master type EMSBKs. ..1. .... RCCEMSLC X'20' RCCEMSLC Load Control type EMSBKs. ...1 .... RCCEMSNC X'10' RCCEMSNC New CPU type EMSBKs. 0129 297 Bitstring 1 RCCEMSFF EMSBK type flags for RCCEMSOF. 1... .... RCCEMSAR X'80' RCCEMSAR Alt Proc Recovery type EMSBKs. .1.. .... RCCEMSSM X'40' RCCEMSSM Switch Master type EMSBKs. ..1. .... RCCEMSLC X'20' RCCEMSLC Load Control type EMSBKs. ...1 .... RCCEMSNC X'10' RCCEMSNC New CPU type EMSBKs. 012A 298 Bitstring 1 RCCEMSNF EMSBK type flags for RCCEMSON. 1... .... RCCEMSAR X'80' RCCEMSAR Alt Proc Recovery type EMSBKs. .1.. .... RCCEMSSM X'40' RCCEMSSM Switch Master type EMSBKs. ..1. .... RCCEMSLC X'20' RCCEMSLC Load Control type EMSBKs. ...1 .... RCCEMSNC X'10' RCCEMSNC New CPU type EMSBKs. 012B 299 Bitstring 1 * Reserved for IBM use. RCCLFTIM: Array of CPU-Measurement Facility "counter lifetime" values. Function : Used to identify separate "lifetimes" for CPU-Measurement Facility counters. This array is indexed by CPU address shifted 2 bits left (multiplied by 4). These are monotonically incrementing values that indicate when a new "lifetime" begins. Cumulative counter values from two different "lifetimes" should not be used to compute delta values. New "lifetimes" logically begin any time the counters are reset to zero. For our purposes, we will define a new "lifetime" to begin when we activate CPU- Measurement Facility counters for a given CPU. The consequence of this is that we will start a new "lifetime" when monitor collection of the counters is stopped and restarted, even if the counters were not reset to zeroes. Serialized : This array is serialized by processor local serialization. Each CPU will only ever update its own entry. 012C 300 Signed 4 RCCLFTIM (64) Counter lifetime array CPU-Measurement Facility buffers Function : Per CPU pointers to buffers containing the most recent output to Query Counter Information (QCTRI) and Query Sampling Information (QSI). These pointers are indexed by CPU address. A value of zero indicates that this CPU has never issued a QCTRI or QSI instruction. The first time a CPU issues the instruction, it will allocate the buffer and store it into this array. All subsequent executions of the instruction will reuse the buffer. These buffers persist as debug information and are never released, once allocated. Serialized : This array is serialized by processor local serialization. Each CPU will only ever update its own entry. Initially, when a CPU's entry is zero, it will allocate a buffer and store the address in its entry. On subsequent uses, it will find a non-zero value and reuse its buffer. 022C 556 Address 4 RCCQCTRI (64) QCTRI buffer array 032C 812 Address 4 RCCQSI (64) QSI buffer array 042C 1068 Signed 4 * Reserved for future IBM use. STSI 15.1.x response data area & system topology fields Function : To save System Topology (STSI 15.1.x) data and counters related to how often the data has been updated. A lock is defined as these fields can only be updated when the lock is held exclusive and can only be read/copied when the lock is held shared. System Topology data is saved in storage for 1st level CP systems. Periodically, CP polls (via PTF FC 2) to determine if the system topology has changed. If it has, STSI 15.1.x is issued to update the System Topology data in storage. When monitor needs to cut a system topology configuration record (D1R26) or an event record (D5R14), the fields are copied while the lock is held shared to ensure the values are not being updated at the time. The lock is released before the copied data is passed to the monitor routine because monitor might lose control while processing the data. HCPSSIBK maps the STSI responses including the first part of the STSI 15.1.x response. Serialized : The following data areas are serialized by the Topology lock (HCPDSVTL). This lock must be held as follows to ensure these fields are kept in sync and apply to the same instance of system topology (STSI 15.1.x) response: EXCLUSIVE: * Whenever any of the fields are changed. * For STSI data updates, the lock must be held from BEFORE the PTF FC 2 until after the STSI 15.1.x is issued to ensure the saved STSI data is the most current. SHARED: * Whenever 2 or more fields are read/copied and need to be in sync with each other. This lock is *NOT* to be held over a loss of control. 0430 1072 Dbl-Word 8 * (3) Reserved for IBM use 0448 1096 Bitstring 1 RCCTOPFG Flags for STSI 15.1.x information 1... .... RCCTOPSP X'80' RCCTOPSP Indicates whether system topology facility is supported. The rest of the system topology fields are only valid when this bit is ON. 0449 1097 Bitstring 1 RCCSTSIP STSI Parameters: Bits 0-4 = Reserved, stored 0 .... .111 RCCMNEST X'07' Bits 5-7 = RCCMNEST (like PCCMNEST) Value of selector-2 (x) used in most recent STSI 15.1.x ins that CP issued. If PCCMNEST=0, RCCMNEST=2 and use STSI 15.1.2 044A 1098 Bitstring 2 * Reserved for IBM use 044C 1100 Address 4 RCC151x Most recent STSI 15.1.x response. This 31-bit address points to the 4K page holding the STSI 15.1.x response. 0450 1104 Signed 4 RCCTOPPL Count of times system topology was polled by CP via PTF FC 2. 0454 1108 Signed 4 RCCTOPCH Count of times system topology was found changed and was updated in storage (aka number of times that PTF FC 2 returned CC=1) HiperDispatch related fields Function : Fields used to manage the HiperDispatch environment. Serialized : These fields are serialized by the Vary Processor Lock (HCPRCCVA) and the Topology Lock (HCPDSVTL), unless otherwise noted. 0458 1112 Signed 4 RCCDEDCT Count of Dedicated vCPUs. Serialized by vary proc lock 045C 1116 Signed 4 RCCDSVCH Count of times DSVBK association has been changed. In addition to when Topology changes are detected, CPU dedication changes can also cause us to change DSVBK association. 0460 1120 Dbl-Word 8 * (0) 0460 1120 Signed 8 RCCDSVTM TOD value at last DSVBK assoc change. 0468 1128 Bitstring 8 RCCVALID Mask of CPUs that have valid association to DSVBKs 0470 1136 Bitstring 8 RCCTOPDA (64) Topology description array. Describes the system topology of each processor. Indexed by CPU address. 0470 1136 Signed 2 RCCTOPDI Dispatch vector id to which a CPU is associated 0472 1138 Bitstring 4 RCCTOPDS Topo descriptor of DSV assigned. This topology descriptor or identifier consists of the container IDs (TOPCNTID) for the TOPBKs in the topology tree above the DSVBK specified in RCCTOPDI. These container IDs are positioned left to right with the highest (greatest TOPNL value) TOPBKs listed first. 0476 1142 Bitstring 2 RCCTOPRS Reserved for IBM use End of RCCTOPDA entry mapping 0670 1648 Address 4 RCCTOPBF Address of pre-allocated buffer from which to "allocate" TOPBKs 0674 1652 Signed 4 RCCTOPBS Length in bytes of the RCCTOPBF buffer 0678 1656 Address 4 RCCTOPCU Cursor/pointer into the RCCTOPBF buffer from where the next TOPBK should be allocated. 067C 1660 Signed 4 * Reserved for IBM use Miscellaneous data fields 0680 1664 Dbl-Word 8 * (0) 0680 1664 Signed 8 RCCSTPST TOD value at last system timer pop interval 0688 1672 Signed 8 RCCSTPT Smoothed total processor time (microsec) in last time interval The RCCTOPDX contains the index into the VMUTOPDA array that was used during the last rebalance operation. This field is used to maintain the VMUTOPDA array such that the Nth entry of each array for every VMUBK is for the same rebalance operation. RCCTOPDX is also used as an index into the SRXNICPF, SRXLIUSG, SRXVMDCT, SRXACGUS and SRXNIPAD, all fields related to rebalance and park/unpark operations. 0690 1680 Bitstring 1 RCCTOPDX Zero based index into the most recent element in the SRXNICPF, SRXLIUSG, SRXVMDCT, SRXACGUS, SRXNIPAD, and VMUTOPDA arrays. This field is serialized by the same mechanism as the rebalance operation. It is updated by HCPHIPTM and used by park/unpark calculations (HCPHIC) and rebalance (HCPDSBRB). 0691 1681 Bitstring 3 * Reserved for IBM use. 0694 1684 Signed 4 RCCREBAL Count of the number of times a rebalance was done on this system. The following fields are used to build two arrays of origin VMUBKs for use by the DSVBK rebalance routine. Storage for the array is obtained at system IPL time. The arrays are rebuilt each time the guest CPU usage prediction routine is called. The prediction routine is called by the Periodic HiperDispatch routine before it calls the rebalance routine. There are two arrays built because rebalance wants to assign new home DSVBKs first to the guests with the largest predicted future CPU usage. So the first array is built unordered at the beginning of this buffer and then a quick sort is done to order them by predicted usage. The second array is maintained at the end of the buffer working backward through the buffer. This This array contains all origin VMUBKs whose predicted CPU usage is below a certain threshold as defined in HCPVMU. This second array is built to make the quick sort as efficient as possible by keeping the potentially large number of inactive guests out of the array that needs to be sorted. There is very little difference in the predicted CPU usage of all of these guests and so no real need to sort them. Serialization of these arrays is accomplished with the RCCVMULK defer lock. This lock is obtained at the time the arrays are populated with VMUBK addresses. This is done early in the Periodic HiperDispatch routine which is driven once every two seconds. The lock is held from the time population of the arrays begins until near the end of the Periodic HiperDispatch routine processing when the rebalance function completes. This lock is held to ensure no VMUBKs in either array can be released by logoff before all of the rebalance function completes. Note that because this lock is obtained early and held continuously across most of the Periodic HiperDispatch routine, other locks are obtained after RCCVMULK was obtained. Therefore RCCVMULK must always be obtained prior to obtaining any of the following: vary lock, scheduler lock, topology lock. An entry (element) in the arrays consists of two fields which are mapped by the VMUARYEN DSECT in HCPVMUBK: 1) a fullword pointer to an origin VMUBK 2) a fullword CPU usage value which is a scaled percentage of the guest's total predicted CPU usage for the next interval. 0698 1688 Dbl-Word 8 RCCVMULK (3) Defer lock used to serialize the ordered and unordered arrays of VMUBKs (see lock heirarchy info in the block comment above) 00000100 RCCVMUPC 256 Count of pages of contiguous storage to reserve at IPL time for these arrays. This number is enough to have origin VMUBKs for 100,000 guests plus 20,000+ extra for things like AT command VMDBKs. A CKMAINT macro invocation in the module that obtains this storage verifies it is enough. 06B0 1712 Address 4 RCCVMUOA HLA start address of the ordered array of origin VMUBKs 06B4 1716 Signed 4 RCCVMUOC Count of the number of elements in use in the RCCVMUOA array 06B8 1720 Signed 4 RCCVMUUC Count of the number of elements in use in the RCCVMUUA array 06BC 1724 Address 4 RCCVMUUA HLA addr of 1st entry in array of origin VMUBKs with small predicted CPU usage. This is at the end of the storage buffer that starts at the address in RCCVMUOA. This array will be filled in by backing up into the buffer 06C0 1728 Address 4 RCCVMUPP HLA pointer to a one-page buffer to be used as a work area by the VMUBK array sort routine and also by the dispatch vector rebalance routine Park/unpark mask fields Function : Fields used to decide parked CPUs, master, and unparked CPUs when there are topology or white space changes. Serialized : These fields are serialized by the Vary Processor Lock (HCPRCCVA). Notes : It is the desired end state, not what needs to change. The request is created by HCPHICCU while holding the Vary Processor Lock, and the entire request is processed by HCPMPCTP with a continuous hold of the Vary Processor Lock. 06C4 1732 Bitstring 1 RCCPKFLG Flag indicating new request .... ...1 RCCPKNEW X'01' RCCPKNEW New request to be processed 06C5 1733 Bitstring 3 * Reserved for IBM use 06C8 1736 Dbl-Word 8 * (0) 06C8 1736 Dbl-Word 8 RCCPKMST Mask of master CPU 06D0 1744 Dbl-Word 8 RCCUPMKS (6) Desired unpark masks 06D0 1744 Dbl-Word 8 RCCCPMK Unpark mask for CP CPUs 06D8 1752 Dbl-Word 8 * Reserved for IBM use 06E0 1760 Dbl-Word 8 RCCZAPMK Unpark mask for ZAAP CPUs 06E8 1768 Dbl-Word 8 RCCIFLMK Unpark mask for IFL CPUs 06F0 1776 Dbl-Word 8 RCCICFMK Unpark mask for ICF CPUs 06F8 1784 Dbl-Word 8 RCCZIPMK Unpark mask for ZIIP CPUs 0700 1792 Bitstring 112 RCCPKWRK Work area for HCPMPCTP 0700 1792 Dbl-Word 8 RCCWUPKS (6) Array of calculated unpark masks 0730 1840 Dbl-Word 8 RCCWPRKS (6) Array of calculated park masks 0760 1888 Dbl-Word 8 RCCWVOUP Vary-off mask of unparked procs 0768 1896 Dbl-Word 8 RCCWVOPK Vary-off mask of parked procs Other fields used for HiperDispatch. The WHIBK pointer and the WHIBK control block are serialized by restricting their use within a loop of sequential routines which execute after a timer pop. These fields are modified by HCPWHI and viewed by HCPHIC. These routines cannot be re-entered until the next timer pop because a single TRQBK is repeatedly used for this purpose and it is not re-stacked by the calling routine until all of the routines complete. 0770 1904 Signed 4 RCCWHIBK HLA pointer to the WHIBK, obtained and used by HCPWHI for white-space predictions. 0774 1908 Signed 2 RCCCPUCT (24) Array of counts of CPUs which are associated with DSVBKs, indexed first by CPU type, then by polarization. Serialized by the topology lock. Counts include dedicated CPUs. 00000030 RCCCPUCT_len *-RCCCPUCT Length of array Similar to RCCWHIBK above, RCCNUPK is serialized by being set and used in sequential routines executed after a timer pop. RCCNUPK is set in HCPHIC when the decision about which CPUs should be in the unparked state is made. RCCNUPK is later used when creating the park/unpark decision monitor event record. The timer is not restacked until after the monitor record has been generated, thus preventing HCPHIC from running again and modifying this field until it has been consumed. 07A4 1956 Signed 2 RCCNUPK (6) Array of counts of CPUs that are requested to be in the unparked state for the next interval, indexed by CPU type. RCPU side car trace table token. No serialization is needed, as the RCCTRACE field is modified only at initialization. 07B0 1968 Signed 4 RCCTRACE Token for RCPU function trace table. Similar to RCCWHIBK and RCCNUPK, RCCOSCCT is serialized by being set and used in sequential routines executed after a timer pop. RCCOSCCT is used in HCPHICCC to decide whether to leave one extra CPU unparked to avoid park/unpark oscillation. 07B4 1972 Signed 2 RCCOSCCT (6) Array of times in a row that HCPHICCC has predicted it will need exactly one less CPU than it currently has unparked. Indexed by CPU type. These arrays are allocated for two purposes: 1. When CP is running in a dedicated partition, they (RCCTUTIL and RCCTTIME) are used in calculating utilization which must be done differently when the logical processors are dedicated to physical processors. 2. Calculating a (per-CPU-type-pool) T/V ratio. That is, within a given CPU type, a ratio of non-wait execution time to guest emulation (run under SIE) time. This is used when making park/unpark decisions to gauge the potential MP overhead savings by parking a CPU. The arrays have MAXRPROC doubleword entries and are indexed by cpu address. At each interval the value of non-wait execution time in microseconds since the CPU was brought online is calculated using PFXTMSYS and PFXUTIME. HCPWHI calculates utilization for the interval as the difference from the non-wait execution time of the prior interval. The same calculation is performed for guest emulation time. 07C0 1984 Address 4 RCCTUTIL HLA pointer to the array of interval utilization in micro- seconds calculated from PFXTMSYS and PFXUTIME since the last interval. 07C4 1988 Address 4 RCCTTIME HLA pointer to the array of non-wait execution time in microseconds calculated from PFXTMSYS and PFXUTIME. 07C8 1992 Address 4 RCCVUTIL HLA pointer to the array of interval utilization in micro- seconds calculated from PFXPRBTM since the last interval. 07CC 1996 Address 4 RCCVTIME HLA pointer to the array of guest emulation time in microseconds calculated from PFXPRBTM. These fields are used to record the duration of HCPSGRSP SIGP Restarts. Monitor record MRPRCPUP (D5R16) records the duration and count in the D5R16 record. Note, however, that RCCSIGTD and RCCSIGCT include SIGP Restarts for operations unrelated to processor parking. 07D0 2000 Dbl-Word 8 RCCSIGTM Work area for timestamp used to calculate the duration of SIGP restart operations. Serialized by vary proc lock. 07D8 2008 Dbl-Word 8 RCCSIGTE Work area for timestamp used to calculate the duration of SIGP restart operations. Serialized by vary proc lock. 07E0 2016 Dbl-Word 8 RCCSIGTD Cumulative duration of time spent in SIGP restarts expressed as the sum of the TOD clock increments between the time the SIGP restart started and returned. Serialized by vary proc lock. 07E8 2024 Signed 4 RCCSIGCT Cumulative count of successful SIGP restarts. Serialized by vary proc lock. 07EC 2028 Signed 4 * Reserved for IBM use Space 1 07F0 2032 Signed 4 RCCBKEND (0) End of the RCCBK
 
 
  RCCBK Storage Layout Top of page
 
          
*** RCCBK - RCPU DATA AREA MAPPING
*
*     +-------------------------------------------------------+
*   0 |                       RCCURCQ                         |
*     +---------------------------+---------------------------+
*   8 |         RCCSRCQ           |          RCCSFQ           |
*     +---------------------------+---------------------------+
*  10 |         RCCRCNUM          |         RCCSVNUM          |
*     +---------------------------+---------------------------+
*  18 |                                                       |
*     =                       RCCSFQL                         =
*     |                                                       |
*     +-------------------------------------------------------+
*  48 |                       RCCICFAB                        |
*     +-------------------------------------------------------+
*  50 |                       RCCLNINT                        |
*     +---------------------------+---------------------------+
*  58 |         RCCNOINT          |         RCCMAXAV          |
*     +---------------------------+------+--------------------+
*  60 |         RCCMINSV          |:STFLG|////////////////////|
*     +---------------------------+------+--------------------+
*  68 |                       RCCMPDLY                        |
*     +-------------------------------------------------------+
*  70 |///////////////////////////////////////////////////////|
*     +------+--------------------+---------------------------+
*  78 |:MPDAC|////////////////////|         RCCMPCQ0          |
*     +------+--------------------+---------------------------+
*  80 |         RCCMPCQ1          |         RCCMPSQ0          |
*     +---------------------------+---------------------------+
*  88 |         RCCMPSQ1          |                           |
*     +---------------------------+                           |
*  90 |                                                       |
*     =                       RCCCPUAA                        =
*     |                           +---------------------------+
* 108 |                           |          RCC111           |
*     +---------------------------+---------------------------+
* 110 |          RCC122           |         RCC111NT          |
*     +---------------------------+---------------------------+
* 118 |         RCC122NT          |         RCCEMSFL          |
*     +---------------------------+---------------------------+
* 120 |         RCCEMSOF          |         RCCEMSON          |
*     +------+------+------+------+---------------------------+
* 128 |:EMSLF|:EMSFF|:EMSNF|//////|                           |
*     +------+------+------+------+                           |
* 130 |                                                       |
*     =                       RCCLFTIM                        =
*     |                           +---------------------------+
*     |                           |                           |
*     +---------------------------+                           |
* 230 |                                                       |
*     =                       RCCQCTRI                        =
*     |                           +---------------------------+
*     |                           |                           |
*     +---------------------------+                           |
* 330 |                                                       |
*     =                        RCCQSI                         =
*     |                           +---------------------------+
* 428 |                           |///////////////////////////|
*     +---------------------------+---------------------------+
* 430 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +------+------+-------------+---------------------------+
* 448 |:TOPFG|:STSIP|/////////////|         RCC151X           |
*     +------+------+-------------+---------------------------+
* 450 |         RCCTOPPL          |         RCCTOPCH          |
*     +---------------------------+---------------------------+
* 458 |         RCCDEDCT          |         RCCDSVCH          |
*     +---------------------------+---------------------------+
* 460 |                       RCCDSVTM                        |
*     +-------------------------------------------------------+
* 468 |                       RCCVALID                        |
*     +-------------------------------------------------------+
* 470 |                                                       |
*     =                       RCCTOPDA                        =
*     |                                                       |
*     +---------------------------+---------------------------+
* 670 |         RCCTOPBF          |         RCCTOPBS          |
*     +---------------------------+---------------------------+
* 678 |         RCCTOPCU          |///////////////////////////|
*     +---------------------------+---------------------------+
* 680 |                       RCCSTPST                        |
*     +-------------------------------------------------------+
* 688 |                       RCCSTPT                         |
*     +------+--------------------+---------------------------+
* 690 |:TOPDX|////////////////////|         RCCREBAL          |
*     +------+--------------------+---------------------------+
* 698 |                                                       |
*     =                       RCCVMULK                        =
*     |                                                       |
*     +---------------------------+---------------------------+
* 6B0 |         RCCVMUOA          |         RCCVMUOC          |
*     +---------------------------+---------------------------+
* 6B8 |         RCCVMUUC          |         RCCVMUUA          |
*     +---------------------------+------+--------------------+
* 6C0 |         RCCVMUPP          |:PKFLG|////////////////////|
*     +---------------------------+------+--------------------+
* 6C8 |                       RCCPKMST                        |
*     +-------------------------------------------------------+
* 6D0 |                                                       |
*     =                       RCCUPMKS                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 700
*
*** RCCBK - RCPU DATA AREA MAPPING
          
*** Overlay for RCCTOPDA in RCCBK
*
*     +-------------+---------------------------+-------------+
* 470 |  RCCTOPDI   |         RCCTOPDS          |  RCCTOPRS   |
*     +-------------+---------------------------+-------------+
* 478
*
*** Overlay for RCCTOPDA in RCCBK
          
*** Overlay for RCCUPMKS in RCCBK
*
*     +-------------------------------------------------------+
* 6D0 |                       RCCCPMK                         |
*     +-------------------------------------------------------+
* 6D8 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
* 6E0 |                       RCCZAPMK                        |
*     +-------------------------------------------------------+
* 6E8 |                       RCCIFLMK                        |
*     +-------------------------------------------------------+
* 6F0 |                       RCCICFMK                        |
*     +-------------------------------------------------------+
* 6F8 |                       RCCZIPMK                        |
*     +-------------------------------------------------------+
* 700 |                                                       |
*     =                       RCCPKWRK                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 770
*
*** Overlay for RCCUPMKS in RCCBK
          
*** Overlay for RCCPKWRK in RCCBK
*
*     +-------------------------------------------------------+
* 700 |                                                       |
*     =                       RCCWUPKS                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 730 |                                                       |
*     =                       RCCWPRKS                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 760 |                       RCCWVOUP                        |
*     +-------------------------------------------------------+
* 768 |                       RCCWVOPK                        |
*     +---------------------------+---------------------------+
* 770 |         RCCWHIBK          |                           |
*     +---------------------------+                           |
* 778 |                                                       |
*     =                       RCCCPUCT                        =
*     |                           +---------------------------+
* 7A0 |                           |         RCCNUPK           |
*     +---------------------------+                           |
*     |                                                       |
*     +---------------------------+---------------------------+
* 7B0 |         RCCTRACE          |         RCCOSCCT          |
*     +---------------------------+                           |
*     |                                                       |
*     +---------------------------+---------------------------+
* 7C0 |         RCCTUTIL          |         RCCTTIME          |
*     +---------------------------+---------------------------+
* 7C8 |         RCCVUTIL          |         RCCVTIME          |
*     +---------------------------+---------------------------+
* 7D0 |                       RCCSIGTM                        |
*     +-------------------------------------------------------+
* 7D8 |                       RCCSIGTE                        |
*     +-------------------------------------------------------+
* 7E0 |                       RCCSIGTD                        |
*     +---------------------------+---------------------------+
* 7E8 |         RCCSIGCT          |///////////////////////////|
*     +---------------------------+---------------------------+
*
*** Overlay for RCCPKWRK in RCCBK
 
 
  RCCBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
RCCBKEND       07F0
RCCCPMK        06D0
RCCCPUAA       008C
RCCCPUCT       0774
RCCCPUCT_len   0774 00000030
RCCDEDCT       0458
RCCDSVCH       045C
RCCDSVTM       0460
RCCEMSAR       0128 80
RCCEMSAR       0129 80
RCCEMSAR       012A 80
RCCEMSFF       0129
RCCEMSFL       011C
RCCEMSFS       0128
RCCEMSLC       0128 20
RCCEMSLC       0129 20
RCCEMSLC       012A 20
RCCEMSLF       0128
RCCEMSNC       0128 10
RCCEMSNC       0129 10
RCCEMSNC       012A 10
RCCEMSNF       012A
RCCEMSOF       0120
RCCEMSON       0124
RCCEMSSM       0128 40
RCCEMSSM       0129 40
RCCEMSSM       012A 40
RCCICFAB       0048
RCCICFMK       06F0
RCCIFLMK       06E8
RCCLFTIM       012C
RCCLNINT       0050
RCCMAXAV       005C
RCCMINSV       0060
RCCMNEST       0449 07
RCCMPCQ0       007C
RCCMPCQ1       0080
RCCMPDAC       0078
RCCMPDLY       0068
RCCMPSQ0       0084
RCCMPSQ1       0088
RCCMXAVS       0058 08
RCCNOINT       0058
RCCNUPK        07A4
RCCOSCCT       07B4
RCCPKFLG       06C4
RCCPKMST       06C8
RCCPKNEW       06C4 01
RCCPKWRK       0700
RCCQCTRI       022C
RCCQSI         032C
RCCRCNUM       0010
RCCREBAL       0694
RCCSAVL        0064 80
RCCSFQ         000C
RCCSFQL        0018
RCCSIGCT       07E8
RCCSIGTD       07E0
RCCSIGTE       07D8
RCCSIGTM       07D0
RCCSRCQ        0008
RCCSTFLG       0064
RCCSTPST       0680
RCCSTPT        0688
RCCSTSIP       0449
RCCSVNUM       0014
RCCTOPBF       0670
RCCTOPBS       0674
RCCTOPCH       0454
RCCTOPCU       0678
RCCTOPDA       0470
RCCTOPDI       0470
RCCTOPDS       0472
RCCTOPDX       0690
RCCTOPFG       0448
RCCTOPPL       0450
RCCTOPRS       0476
RCCTOPSP       0448 80
RCCTRACE       07B0
RCCTTIME       07C4
RCCTUTIL       07C0
RCCUPMKS       06D0
RCCURCQ        0000
RCCVALID       0468
RCCVMULK       0698
RCCVMUOA       06B0
RCCVMUOC       06B4
RCCVMUPC       0698 00000100
RCCVMUPP       06C0
RCCVMUUA       06BC
RCCVMUUC       06B8
RCCVTIME       07CC
RCCVUTIL       07C8
RCCWHIBK       0770
RCCWPRKS       0730
RCCWUPKS       0700
RCCWVOPK       0768
RCCWVOUP       0760
RCCZAPMK       06E0
RCCZIPMK       06F8
RCC111         010C
RCC111NT       0114
RCC122         0110
RCC122NT       0118
RCC151x        044C
 
This information is based on z/VM 6.3.0 Last updated on 22 May 2013 at 13:55:25 EDT.
Copyright IBM Corporation, 1990, 2013