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Prolog 
Control Block Contents 
   RCCBK DSECT
   RCCHMTDS DSECT
   RCCYMTDS 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.


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 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
 
 
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 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/CORE and VARY ON PROC/CORE. If the EMSBKs are cleaned up after the HCPMPCLF 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 HCPMPCLF. 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 RCCxCAPy: CPU Capability formats from STSI 1.2.2 in integer and binary floating point formats. - If the secondary value (integer or BFP) is zero, then all processors have the same capability, reflected in the primary value. - If the nominal value (integer or BFP) is zero, then processors are currently operating at their nominal capability, reflected in the primary or secondary value. - Integer values are rounded from BFP values, except that a near-zero BFP value is rounded up to integer 1. Function : In zEC12 and earlier machines, STSI 1.2.2 reports only integer values for CPU capability fields. In z13 and later machines, the CPU capability is given as an integer or as a binary floating point number. We want to store both values for all architectures for monitor and accounting records' backward compatibility. Serialized : Serialized by SYSTEM VMDBK Dispatch lock for store and none for fetch (it's just a snapshot of fields). 07F0 2032 Signed 4 RCCCCAPF CPU Capability in BFP format 07F4 2036 Signed 4 RCCCCAPI CPU Capability in integer format 07F8 2040 Signed 4 RCCSCAPF Secondary CPU Cap in BFP format 07FC 2044 Signed 4 RCCSCAPI Secondary CPU Cap in int format 0800 2048 Signed 4 RCCNCAPF Nominal CPU Cap in BFP format 0804 2052 Signed 4 RCCNCAPI Nominal CPU Cap in int format START OF MULTITHREADING CONFIGURATION DATA. Multithreading(MT) facility related fields. 0808 2056 Bitstring 1 RCCMTRSM MT not enabled reason mask 1... .... RCCMTNTI X'80' RCCMTNTI MT facility is not installed .1.. .... RCCMT390 X'40' RCCMT390 ESA/390 or GENERAL LPAR mode ..1. .... RCCMTLCP X'20' RCCMTLCP LINUX only LPAR with CP processors ...1 .... RCCMTCRF X'10' RCCMTCRF Missing corequisite facilities .... 1... RCCMTRBL X'08' RCCMTRBL SRM statement specified rebalance .... .1.. RCCMTHOR X'04' RCCMTHOR Horizontal polarization .... ..1. RCCMTHIG X'02' RCCMTHIG IPL CPU addr is too high .... ...1 RCCMTSFA X'01' RCCMTSFA SIGP failure. See RCCMTFRS. 0809 2057 Bitstring 1 * Reserved 080A 2058 Bitstring 1 RCCMTCFM Missing MT corequisite facility mask 1... .... RCCMTRF1 X'80' RCCMTRF1 Facility 1 required by MT missing .1.. .... RCCMTCSV X'40' RCCMTCSV No MT counter sets support ..1. .... RCCSCCMV X'20' RCCSCCMV Store-CPU-counter-multiple facility is not available. 080B 2059 Bitstring 1 RCCMTPMT Multithreading program-specified maximum thread ID 080C 2060 Bitstring 1 RCCMTTDW Multithreading thread id width 080D 2061 Bitstring 1 RCCMTFRS SIGP set-multithreading order failure reason code 080E 2062 Signed 2 * Reserved 0810 2064 Signed 4 RCCMTFST Detailed failure status when RCCMTFRS=1 0814 2068 Signed 4 RCCSMTSQ Multithreading config change Sequence number. Odd when a SET MT command is in progress and even otherwise. When 0, the multithreading config has not been modified by SET MT. Updates are serialized by CS. RCCSMTLK held exclusive serializes updates to all fields following the lock up to the end of the RCCSMTLK serialized data section and must be held continuously until all processing associated with changes to activated thread counts have completed. Self-consistent reads are guaranteed by holding RCCSMTLK shared. Processing of the MULTITHREADING statement during initialization occurs while the system is running uniprocessor so use of RCCSMTLK can be skipped then. Processor configuration changes needed because of changes to the Activated thread counts require the Vary Proc lock exclusive obtained while continuously holding the SMT Configuration lock exclusive. Therefore the RCCACMNT array is serialized by SMT Configuration Lock plus Vary Proc Lock. A consequence of an SMT configuration change is that the number of activated threads per core may change. Therefore functions that alter the processor configuration such as VARY CORE require protection against changes to the activated thread count while it makes the processor configuration change. Because VARY CORE operates on a single core, the Vary Processor Lock is sufficient protection because the change of the activated thread count resulting from an SMT configura- tion change is done while holding both the SMT config- uration lock and the Vary Proc Lock. However, functions like hiperdispatch that make decisions for an entire CPU type require at least a share of SMT Configuration Lock as protection. In some cases it may be sufficient to use a continuous hold of the Vary Proc Lock if the only portion of the SMT configuration data that is used is serialized by both locks. Hiperdispatch functions that do not hold the Vary Proc Lock continuously use the SMT Configuration Lock over the entire transition that requires protection from SMT configuration changes. The SMT Configuration Lock is higher in the hierarchy that the Vary Proc Lock. 0818 2072 Dbl-Word 8 RCCSMTLK (3) SMT Configuration (defer) Lock. Used to serialize the multithreading configuration data changed by SET MT command. If both this lock and HCPRCCVA are needed this lock must be acquired first if deferring on the locks. Otherwise make a conditional request and back out if it isn't acquired. START OF RCCSMTLK SERIALIZED DATA SECTION. 0830 2096 Signed 8 RCCSMTTM TOD value at completion of the last successful multithreading configuration change. Mask of CPU Types supported in the MULTITHREADING config statement. 00000000 RCCMTCTM PUMCP+PUMZIP+PUMIFL+PUMICF Information from MultiThreading statement in config file. If MAX is specified for any operand, the operand value will be set to X'FF' 0838 2104 Bitstring 1 RCCCOMXT Value specified on MAX_THREADS 0839 2105 Bitstring 1 RCCCOALL Value specified on type ALL This field is used only during statement processing and has no meaning during system operation 083A 2106 Signed 2 * Reserved 083C 2108 Signed 4 * Reserved for IBM use. 0840 2112 Bitstring 1 RCCCOMNT (6) Array of values specified on config statement per CPU type 0840 2112 Bitstring 1 RCCCOCP Requested threads for CP cores 0841 2113 Bitstring 1 * Reserved 0842 2114 Bitstring 1 * Reserved 0843 2115 Bitstring 1 RCCCOIFL Requested threads for IFL cores 0844 2116 Bitstring 1 RCCCOICF Requested threads for ICF cores 0845 2117 Bitstring 1 RCCCOZIP Requested threads for ZIIP cores 0846 2118 Bitstring 1 * (2) Reserved Max numbers of threads per CPU type supported by hardware 0848 2120 Bitstring 1 RCCHWMNT (6) Maximum numbers of threads per CPU type supported by hardware 0848 2120 Bitstring 1 RCCHWCP Maximum threads for CP cores 0849 2121 Bitstring 1 * Reserved 084A 2122 Bitstring 1 * Reserved 084B 2123 Bitstring 1 RCCHWIFL Maximum threads for IFL cores 084C 2124 Bitstring 1 RCCHWICF Maximum threads for ICF cores 084D 2125 Bitstring 1 RCCHWZIP Maximum threads for ZIIP cores 084E 2126 Bitstring 1 * (2) Reserved Max numbers of threads per CPU type supported by z/VM CP 0850 2128 Bitstring 1 RCCSYMNT (6) Maximum numbers of threads per CPU type supported by z/VM CP 0850 2128 Address 1 RCCSYCP Maximum threads for CP cores 0851 2129 Bitstring 1 * RESERVED 0852 2130 Bitstring 1 * RESERVED 0853 2131 Address 1 RCCSYIFL Maximum threads for IFL cores 0854 2132 Address 1 RCCSYICF Maximum threads for ICF cores 0855 2133 Address 1 RCCSYZIP Maximum threads for ZIIP cores 0856 2134 Bitstring 1 * (2) Reserved SET MULTITHREAD command information. The requested thread count fields map 1:1 to the fields for the MULTITHREADING system config file statement. The values are from the most recent successful SET MT command. Additional fields provide serialization and related information. Parameters from most recent successful SET MT command. If MAX is specified for any operand, the operand value will be set to X'FF'. If ALL was not specified, any unspecified CPU type will have a value of x'00'. All values will be zero if INITIAL was specified. RCCSMFLG is used to inform Monitor about the stage of processing to report in MRPRCSMT (D5 R21). 0858 2136 Bitstring 1 RCCSMALL Value specified on type ALL of the most recent successful SET MT command. 0859 2137 Bitstring 1 RCCSMSET SET MT flags. 1... .... RCCSMINI X'80' RCCSMINI SET MT INITIAL specified. 085A 2138 Bitstring 1 RCCSMFLG Multithreading config change flags. In MRPRCSMT (D5 R21) this flag distinguishes between the start and completion records. 00000080 RCCSMSTA X'80' RCCSMSTA Multithreading config change processing has started. 00000040 RCCSMFIN X'40' RCCSMFIN Multithreading config change processing has finished. 00000000 RCCSMINA X'00' RCCSMINA Multithreading config change processing is not active. 085B 2139 Bitstring 1 * Reserved for IBM use. 085C 2140 Signed 4 * Reserved for IBM use. 0860 2144 Bitstring 1 RCCSMMNT (6) Array of values specified on SET MT command per CPU type. 0860 2144 Bitstring 1 RCCSMCP Specified threads for CP cores. 0861 2145 Bitstring 1 * Reserved for IBM use. 0862 2146 Bitstring 1 * Reserved for IBM use. 0863 2147 Bitstring 1 RCCSMIFL Specified threads for IFL cores. 0864 2148 Bitstring 1 RCCSMICF Specified threads for ICF cores. 0865 2149 Bitstring 1 RCCSMZIP Specified threads for zIIP cores. 0866 2150 Bitstring 1 * (2) Reserved for IBM use. Resulting Requested Multithreading Configuration: These values are the same as above, but with the zeros replaced with the prior values because those CPU types are unchanged. 0868 2152 Bitstring 1 RCCCRMNT (6) Array of new multithreading configuration values. 0868 2152 Bitstring 1 RCCCRCP Requested threads for CP cores. 0869 2153 Bitstring 1 * Reserved for IBM use. 086A 2154 Bitstring 1 * Reserved for IBM use. 086B 2155 Bitstring 1 RCCCRIFL Requested threads for IFL cores. 086C 2156 Bitstring 1 RCCCRICF Requested threads for ICF cores. 086D 2157 Bitstring 1 RCCCRZIP Requested threads for zIIP cores. 086E 2158 Bitstring 1 * (2) Reserved for IBM use. Per CPU Type activated thread count transition sequence number. These values can be used to determine whether a transition is active, as well as how many transitions have occurred for each CPU type. The sequence number is incremented only if the activated thread count changes. When the sequence number is 0, there has not been a change to the activated thread count for the CPU type since IPL. If it is odd then a transition is active, and if it is even and greater than 0 the value is twice the number of transitions because the value is incremented at the start and end of the transition. 0870 2160 Signed 4 RCCATSEQ (6) Array of activated-thread-cnt transition sequence numbers. 0870 2160 Signed 4 RCCATSCP Sequence number for CP activated thread count transitions. 0874 2164 Signed 4 * Reserved for IBM use. 0878 2168 Signed 4 * Reserved for IBM use. 087C 2172 Signed 4 RCCATSIFL Sequence number for IFL activated thread count transitions. 0880 2176 Signed 4 RCCATSICF Sequence number for ICF activated thread count transitions. 0884 2180 Signed 4 RCCATSZIP Sequence number for zIIP activated thread count transitions. 0888 2184 Signed 4 * (2) Reserved for IBM use. Actual numbers of activated threads per CPU type. This array is serialized by SMT Configuration Lock (RCCSMTLK) plus Vary Proc Lock (HCPRCCVA). 0890 2192 Bitstring 1 RCCACMNT (6) Actual numbers of activated threads per CPU type 0890 2192 Address 1 RCCACCP Activated threads for CP cores 0891 2193 Bitstring 1 * RESERVED 0892 2194 Address 1 RCCACZAP Activated threads for ZAAP cores 0893 2195 Address 1 RCCACIFL Activated threads for IFL cores 0894 2196 Address 1 RCCACICF Activated threads for ICF cores 0895 2197 Address 1 RCCACZIP Activated threads for ZIIP cores 0896 2198 Bitstring 1 * (2) Reserved Per CPU Type activated processor masks are used only during the activated thread count transitions. They are used in the processing to define the desired end state. 0898 2200 Bitstring 8 RCCACTMKS (6) Desired per CPU type activated processor masks. 0898 2200 Bitstring 8 RCCACTCP Activated CP processor mask. 08A0 2208 Bitstring 1 * Reserved for IBM use. 08A8 2216 Bitstring 1 * Reserved for IBM use. 08B0 2224 Bitstring 8 RCCACTIF Activated IFL processor mask. 08B8 2232 Bitstring 8 RCCACTIC Activated ICF processor mask. 08C0 2240 Bitstring 8 RCCACTZI Activated zIIP processor mask. 08C8 2248 Bitstring 1 * (16) Reserved for IBM use. END OF RCCSMTLK SERIALIZED DATA SECTION. END OF MULTITHREADING CONFIGURATION DATA. These arrays are allocated for dedicated partition utilization calculation when multithreading is enabled. The arrays have RCCMXCOR+1 doubleword entries and are indexed by core ID. 08D8 2264 Address 4 RCCDPTUT HLA pointer to the array of interval utilization in micro- seconds calculated from CPUMF MT-1 counters and core cycle speed since the last interval 08DC 2268 Address 4 RCCDPTTM HLA pointer to the array of non-wait execution time in microseconds calculated from CPUMF MT-1 counters and core cycle speed 00000000 RCCCORLO 0 Lowest valid core ID (0). 08E0 2272 Address 2 RCCMXCOR Max core ID supported for current multithreading configuration settings. 08E2 2274 Signed 2 * Reserved for IBM use. 08E4 2276 Address 4 RCCCORET (64) Host logical addr of Core Table indexed by core ID. 09E4 2532 Address 4 RCCCORST Start address of CORBKs contiguously allocated and indexed by core ID. 09E8 2536 Signed 4 RCCSPCP CP engine speed in cycles per microsecond. 09EC 2540 Signed 4 RCCSCCP Count of speed changes for CPs. 09F0 2544 Signed 4 RCCSPSPC Specialty engine speed in cycles per microsecond. 09F4 2548 Signed 4 RCCSCSPC Count of speed changes for specialty engines. Start of HISMT related information used by the HISMT service or invokers of the service. 09F8 2552 Dbl-Word 8 RCCCTtoPC (0) CPU Type to HISMT ProcClassIndex conversion table. Used to convert from architected CPU type codes to the ProcClass values used by the HISMT service. x'FF' indicates an unsupported CPU type value. 09F8 2552 Address 4 * (0) Force a cross reference 09F8 2552 Address 1 * CP CPU Type 09F9 2553 Bitstring 1 * RESERVED FOR IBM USE. 09FA 2554 Address 1 * zAAP CPU Type 09FB 2555 Address 1 * IFL CPU Type 09FC 2556 Address 1 * ICF CPU Type 09FD 2557 Address 1 * zIIP CPU Type 09FE 2558 Bitstring 1 * RESERVED FOR IBM USE. 09FF 2559 Bitstring 1 * RESERVED FOR IBM USE. 0A00 2560 Dbl-Word 8 RCCPCtoCT (0) ProcClass to HISMT ProcClass Index conversion table. Used to convert from ProcClass values used by the HISMT service to architected CPU type codes. x'FF' indicates an unsupported CPU type value. 0A00 2560 Address 1 * CP ProcClassIndex 0A01 2561 Address 1 * zAAP ProcClassIndex 0A02 2562 Address 1 * zIIP ProcClassIndex 0A03 2563 Address 1 * ICF ProcClassIndex 0A04 2564 Address 1 * IFL ProcClassIndex 0A05 2565 Bitstring 1 * RESERVED FOR IBM USE. 0A06 2566 Bitstring 1 * RESERVED FOR IBM USE. 0A07 2567 Bitstring 1 * RESERVED FOR IBM USE. 0A08 2568 Signed 8 RCCHSTTM Time for next HISMT call for historic values. Value is in TOD units. 0A10 2576 Address 4 RCCMTCTR HCPMTC Timer Task TRQBK address used to control timing of calls for CBF and historic metric data calculations. HCPMTC function identifiers used internally to identify the specific function using the HISMT service. These equates must be assigned values corresponding to the ordering of the bits in RCCHMDIS and the entries in the RCCYMTUS array. 00000001 RCCYMTCB 1 ID for HISMT user = CBF 00000002 RCCYMTHD 2 ID for HISMT user = historic metric data. 00000003 RCCYMTMC 3 ID for HISMT user = SRXMCF. 00000004 RCCYMTIN 4 ID for HISMT user = Indicate Multithread. 00000005 RCCYMTMN 5 ID for HISMT user = MT sample data for Monitor. 00000005 RCCYMTMX RCCYMTMN Maximum function identifier. HISMT/HISYMT related data areas. These data areas contain values needed for HISMT invocations. These data areas are allocated only MT is enabled. The contents of the data area are mapped by the RCCYMTDS DSECT. Each of the data areas is serialized by the task that invokes it which are singleton tasks, each of which never executes on multiple processors concurrently. 0A14 2580 Address 4 RCCYMTUS (5) Array of HISMT related data areas. 0A14 2580 Address 4 RCCCBYMT HISMT related data area for CBF Timer Task (HCPMTCTL). Serialized by singleton nature of CBF Timer Task. Mapped by RCCYMTDS. 0A18 2584 Address 4 RCCHDYMT HISMT related data area for historic Data requests (HCPMTCTL). Serialized by singleton nature of CBF Timer Task. Mapped by RCCYMTDS. 0A1C 2588 Address 4 RCCMCYMT HISMT related data area for SRXMCF and CoreBusyTime calculations (HCPMTCSR). Serialized by singleton nature of Hiperdispatch timer task. Mapped by RCCYMTDS. 0A20 2592 Address 4 RCCINYMT HISMT related data area for HCPSTPGS usage for Serialized by singleton nature of HCPSTPGS. Indicate Multithread. Mapped by RCCYMTDS. 0A24 2596 Address 4 RCCMNYMT HISMT related data area Monitor MT Sample data. Serialized by the Monitor command lock. Mapped by RCCYMTDS. End of HISMT/HISYMT related data areas. 0A28 2600 Signed 4 RCCHMSTA (0) HISMT usage status word. 0A28 2600 Address 1 RCCHMDIS HISMT service disabled. RCCHMDIS is used to indicate when an error was returned from a call to HISMT, or MT is not enabled so the use of the HISMT service was disabled. 1... .... RCCCBDIS X'80' RCCCBDIS CBF Task use of HISMT disabled. .1.. .... RCCHDDIS X'40' RCCHDDIS Historic data use of HISMT disabled. ..1. .... RCCMCDIS X'20' RCCMCDIS SRXMCF management and CoreBusyTime use of HISMT disabled. ...1 .... RCCINDIS X'10' RCCINDIS Indicate MT use of HISMT disabled. .... 1... RCCMNDIS X'08' RCCMNDIS Monitor data use of HISMT disabled. 1111 1... RCCALDIS RCCCBDIS+RCCHDDIS+RCCMCDIS+RCCIND IS+RCCMNDIS RCCALDIS All disabled. 0A29 2601 Bitstring 1 * Reserved for IBM use. 0A2A 2602 Address 1 RCCHMCSF HISMT Caller-specific flags. 1... .... RCCMNCS1 X'80' RCCMNCS1 Monitor has initialized HISMT but not extracted the first set of metrics, which should be discarded. 0A2B 2603 Bitstring 1 * Reserved for IBM use. 0A2C 2604 Address 4 RCCHMT Pointer to a table of HISMT data by CPU type used by HCPSTP. Rows of the table are indexed by values of PFXCPUTY. Rows of the table are mapped by the RCCHMTDS DSECT. The table is allocated during initialization by HCPIOP. Row count is RCCHMTCT. Row length is RCCHMTLN. 00000006 RCCHMTCT 6 Count of rows (CPU types) in the table. Historic HISMT metric values The historic values are kept in fullword arrays indexed by ProcClass. The arrays are only updated by the HISMT service when invoked by the MTC Timer Task. The serialization for updates to the arrays is provided implicitly by the fact that there is a single instance of the task in the system. These arrays are initialized to default values at CP initialization. The default for all values will be 1 with the scaling HISMT uses which is defined by HisMT_Entry_kMetricFactor to be 1024. 0A30 2608 Address 4 * (0) Force a cross reference 0A30 2608 Address 4 RCCHPROD (5) ProcClass historic values per ProcClass. 0A44 2628 Address 4 RCCHCAP (5) CapClass historic values per ProcClass. 0A58 2648 Address 4 RCCHMCAP (5) MaxCapClass historic values per ProcClass. 0A6C 2668 Address 4 RCCHCBF (5) CBFClass historic values per ProcClass. 0A80 2688 Signed 8 RCCSTPCR Time of second to last system timer pop interval RCCCORTY - Core CPU type byte array. This array contains one byte per core to allow an indexed lookup of CPU type using the core ID. The values are the same as CORCPUTY. Array updates are serialized by the Vary Proc Lock. The entries will be set to x'FF' for offline cores since a value of x'00' is a valid CPU type. 0A88 2696 Address 1 RCCCORTY (64) Array of core CPU types. 0AC8 2760 Signed 4 RCCBKEND (0) End of the RCCBK
 RCCHMTDS DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure RCCHMTDS RCPU DATA AREA MAPPING 0000 0 Signed 4 RCCCF Capacity factor. 0004 4 Signed 4 RCCMCF Max capacity factor. 0008 8 Signed 4 RCCUTIL Utilization 000C 12 Signed 4 RCCPROD Productivity. 0010 16 Signed 4 RCCDENS Thread Density. 0014 20 Signed 4 RCCBUSY Type busy percentage. 0018 24 Signed 4 RCCTHRCL Activated thread count. 001C 28 Bitstring 1 RCCCHANG Flag byte for nonfatal HISMT return codes 1... .... RCCSPCH X'80' RCCSPCH A speed change was detected. 001D 29 Bitstring 3 * Reserved for IBM use. 00000020 RCCHMTLN *-RCCHMTDS Length of array element. This DSECT maps the HISMT/HISYMT related data areas.
 RCCYMTDS DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure RCCYMTDS RCPU DATA AREA MAPPING 0000 0 Address 4 RCCYMTAD Address of HISYMT area. 0004 4 Signed 4 RCCYMTLN HISYMT area length in bytes. 0008 8 Signed 4 RCCYMTRC Last HISMT return code. 000C 12 Signed 4 RCCYMTRS (0) Last HISMT reason code. 000C 12 Signed 2 RCCYMTR1 Bits 0-15 undefined, but are set to zeros by HISMT MACRO. HCPMTC overlays it with the flags below after HISMT. Reason code testing should be done using RCCYMTR2. 000C 12 Bitstring 1 RCCYMTFL Copy of HisMTHdr.HisMTFlg. 000D 13 Bitstring 1 * Reserved for IBM use. 000E 14 Signed 2 RCCYMTR2 Reason code is bits 16-31. 0010 16 Dbl-Word 8 RCCYMTPL (8) HISMT parmeter list plus room for growth. 00000050 RCCYMTDL *-RCCYMTDS HISMT/HISYMT related data area length in bytes. 0000000A RCCYMTDD (RCCYMTDL+7)/8 HISMT/HISYMT related data area length in doublewords.
 
 
  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          |///////////////////////////|
*     +---------------------------+---------------------------+
* 7F0 |         RCCCCAPF          |         RCCCCAPI          |
*     +---------------------------+---------------------------+
* 7F8 |         RCCSCAPF          |         RCCSCAPI          |
*     +---------------------------+---------------------------+
* 800 |         RCCNCAPF          |         RCCNCAPI          |
*     +------+------+------+------+------+------+-------------+
* 808 |:MTRSM|//////|:MTCFM|:MTPMT|:MTTDW|:MTFRS|/////////////|
*     +------+------+------+------+------+------+-------------+
* 810 |         RCCMTFST          |         RCCSMTSQ          |
*     +---------------------------+---------------------------+
* 818 |                                                       |
*     =                       RCCSMTLK                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 830 |                       RCCSMTTM                        |
*     +------+------+-------------+---------------------------+
* 838 |:COMXT|:COALL|/////////////|///////////////////////////|
*     +------+------+-------------+-------------+-------------+
* 840 |                RCCCOMNT                 | 846
*     +-----------------------------------------+
*
*** Overlay for RCCPKWRK in RCCBK
 
*** Overlay for RCCCOMNT in RCCBK
*
*     +------+------+------+------+------+------+-------------+
* 840 |:COCP |//////|//////|:COIFL|:COICF|:COZIP|/////////////|
*     +------+------+------+------+------+------+-------------+
* 848 |                RCCHWMNT                 | 84E
*     +-----------------------------------------+
*
*** Overlay for RCCCOMNT in RCCBK
 
*** Overlay for RCCHWMNT in RCCBK
*
*     +------+------+------+------+------+------+-------------+
* 848 |:HWCP |//////|//////|:HWIFL|:HWICF|:HWZIP|/////////////|
*     +------+------+------+------+------+------+-------------+
* 850 |                RCCSYMNT                 | 856
*     +-----------------------------------------+
*
*** Overlay for RCCHWMNT in RCCBK
 
*** Overlay for RCCSYMNT in RCCBK
*
*     +------+------+------+------+------+------+-------------+
* 850 |:SYCP |//////|//////|:SYIFL|:SYICF|:SYZIP|/////////////|
*     +------+------+------+------+------+------+-------------+
* 858 |:SMALL|:SMSET|:SMFLG|//////|///////////////////////////|
*     +------+------+------+------+-------------+-------------+
* 860 |                RCCSMMNT                 | 866
*     +-----------------------------------------+
*
*** Overlay for RCCSYMNT in RCCBK
 
*** Overlay for RCCSMMNT in RCCBK
*
*     +------+------+------+------+------+------+-------------+
* 860 |:SMCP |//////|//////|:SMIFL|:SMICF|:SMZIP|/////////////|
*     +------+------+------+------+------+------+-------------+
* 868 |                RCCCRMNT                 | 86E
*     +-----------------------------------------+
*
*** Overlay for RCCSMMNT in RCCBK
 
*** Overlay for RCCCRMNT in RCCBK
*
*     +------+------+------+------+------+------+-------------+
* 868 |:CRCP |//////|//////|:CRIFL|:CRICF|:CRZIP|/////////////|
*     +------+------+------+------+------+------+-------------+
* 870 |                                                       |
*     =                       RCCATSEQ                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 888
*
*** Overlay for RCCCRMNT in RCCBK
 
*** Overlay for RCCATSEQ in RCCBK
*
*     +---------------------------+---------------------------+
* 870 |         RCCATSCP          |///////////////////////////|
*     +---------------------------+---------------------------+
* 878 |///////////////////////////|        RCCATSIFL          |
*     +---------------------------+---------------------------+
* 880 |        RCCATSICF          |        RCCATSZIP          |
*     +---------------------------+---------------------------+
* 888 |///////////////////////////////////////////////////////|
*     +-----------------------------------------+-------------+
* 890 |                RCCACMNT                 | 896
*     +-----------------------------------------+
*
*** Overlay for RCCATSEQ in RCCBK
 
*** Overlay for RCCACMNT in RCCBK
*
*     +------+------+------+------+------+------+-------------+
* 890 |:ACCP |//////|:ACZAP|:ACIFL|:ACICF|:ACZIP|/////////////|
*     +------+------+------+------+------+------+-------------+
* 898 |                                                       |
*     =                      RCCACTMKS                        =
*     |                                                       |
*     +-------------------------------------------------------+
* 8C8
*
*** Overlay for RCCACMNT in RCCBK
 
*** Overlay for RCCACTMKS in RCCBK
*
*     +-------------------------------------------------------+
* 898 |                       RCCACTCP                        |
*     +------+------------------------------------------------+
* 8A0 |//////|////////////////////////////////////////////////|
*     +------+------------------------------------------------+
* 8A8 |//////|////////////////////////////////////////////////|
*     +------+------------------------------------------------+
* 8B0 |                       RCCACTIF                        |
*     +-------------------------------------------------------+
* 8B8 |                       RCCACTIC                        |
*     +-------------------------------------------------------+
* 8C0 |                       RCCACTZI                        |
*     +-------------------------------------------------------+
* 8C8 |///////////////////////////////////////////////////////|
*     |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
* 8D8 |         RCCDPTUT          |         RCCDPTTM          |
*     +-------------+-------------+---------------------------+
* 8E0 |  RCCMXCOR   |/////////////|                           |
*     +-------------+-------------+                           |
* 8E8 |                                                       |
*     =                       RCCCORET                        =
*     |                           +---------------------------+
* 9E0 |                           |         RCCCORST          |
*     +---------------------------+---------------------------+
* 9E8 |         RCCSPCP           |         RCCSCCP           |
*     +---------------------------+---------------------------+
* 9F0 |         RCCSPSPC          |         RCCSCSPC          |
*     +------+------+------+------+------+------+------+------+
* 9F8 |//////|//////|//////|//////|//////|//////|//////|//////|
*     +------+------+------+------+------+------+------+------+
* A00 |//////|//////|//////|//////|//////|//////|//////|//////|
*     +------+------+------+------+------+------+------+------+
* A08 |                       RCCHSTTM                        |
*     +---------------------------+---------------------------+
* A10 |         RCCMTCTR          |                           |
*     +---------------------------+                           |
*     |                       RCCYMTUS                        |
*     |                                                       |
*     +-------------------------------------------------------+
* A28
*
*** Overlay for RCCACTMKS in RCCBK
 
*** Overlay for RCCYMTUS in RCCBK
*
*                                 +---------------------------+
* A10 ...                     A14 |         RCCCBYMT          |
*     +---------------------------+---------------------------+
* A18 |         RCCHDYMT          |         RCCMCYMT          |
*     +---------------------------+---------------------------+
* A20 |         RCCINYMT          |         RCCMNYMT          |
*     +------+------+------+------+---------------------------+
* A28 |:HMDIS|//////|:HMCSF|//////|          RCCHMT           |
*     +------+------+------+------+---------------------------+
* A30 |                                                       |
*     =                       RCCHPROD                        =
*     |                           +---------------------------+
* A40 |                           |                           |
*     +---------------------------+                           |
*     |                       RCCHCAP                         |
*     |                                                       |
*     +-------------------------------------------------------+
* A58 |                                                       |
*     =                       RCCHMCAP                        =
*     |                           +---------------------------+
* A68 |                           |                           |
*     +---------------------------+                           |
*     |                       RCCHCBF                         |
*     |                                                       |
*     +-------------------------------------------------------+
* A80 |                       RCCSTPCR                        |
*     +-------------------------------------------------------+
* A88 |                                                       |
*     =                       RCCCORTY                        =
*     |                                                       |
*     +-------------------------------------------------------+
*
*** Overlay for RCCYMTUS in RCCBK
 
*** RCCHMTDS - RCPU DATA AREA MAPPING
*
*     +---------------------------+---------------------------+
*   0 |          RCCCF            |          RCCMCF           |
*     +---------------------------+---------------------------+
*   8 |         RCCUTIL           |         RCCPROD           |
*     +---------------------------+---------------------------+
*  10 |         RCCDENS           |         RCCBUSY           |
*     +---------------------------+------+--------------------+
*  18 |         RCCTHRCL          |:CHANG|////////////////////|
*     +---------------------------+------+--------------------+
*  20
*
*** RCCHMTDS - RCPU DATA AREA MAPPING
 
*** RCCYMTDS - RCPU DATA AREA MAPPING
*
*     +---------------------------+---------------------------+
*   0 |         RCCYMTAD          |         RCCYMTLN          |
*     +---------------------------+-------------+-------------+
*   8 |         RCCYMTRC          |  RCCYMTR1   | E
*     +---------------------------+-------------+
*
*** RCCYMTDS - RCPU DATA AREA MAPPING
 
*** Overlay for RCCYMTR1 in RCCYMTDS
*
*                                 +------+------+-------------+
*   8 ...                       C |:YMTFL|//////|  RCCYMTR2   |
*     +---------------------------+------+------+-------------+
*  10 |                                                       |
*     =                       RCCYMTPL                        =
*     |                                                       |
*     +-------------------------------------------------------+
*  50
*
*** Overlay for RCCYMTR1 in RCCYMTDS
 
 
  RCCBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
RCCACCP        0890
RCCACICF       0894
RCCACIFL       0893
RCCACMNT       0890
RCCACTCP       0898
RCCACTIC       08B8
RCCACTIF       08B0
RCCACTMKS      0898
RCCACTZI       08C0
RCCACZAP       0892
RCCACZIP       0895
RCCALDIS       0A28 F8
RCCATSCP       0870
RCCATSEQ       0870
RCCATSICF      0880
RCCATSIFL      087C
RCCATSZIP      0884
RCCBKEND       0AC8
RCCBUSY        0014
RCCCBDIS       0A28 80
RCCCBYMT       0A14
RCCCCAPF       07F0
RCCCCAPI       07F4
RCCCF          0000
RCCCHANG       001C
RCCCOALL       0839
RCCCOCP        0840
RCCCOICF       0844
RCCCOIFL       0843
RCCCOMNT       0840
RCCCOMXT       0838
RCCCORET       08E4
RCCCORLO       08DC 00000000
RCCCORST       09E4
RCCCORTY       0A88
RCCCOZIP       0845
RCCCPMK        06D0
RCCCPUAA       008C
RCCCPUCT       0774
RCCCPUCT_len   0774 00000030
RCCCRCP        0868
RCCCRICF       086C
RCCCRIFL       086B
RCCCRMNT       0868
RCCCRZIP       086D
RCCCTtoPC      09F8
RCCDEDCT       0458
RCCDENS        0010
RCCDPTTM       08DC
RCCDPTUT       08D8
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
RCCHCAP        0A44
RCCHCBF        0A6C
RCCHDDIS       0A28 40
RCCHDYMT       0A18
RCCHMCAP       0A58
RCCHMCSF       0A2A
RCCHMDIS       0A28
RCCHMSTA       0A28
RCCHMT         0A2C
RCCHMTCT       0A2C 00000006
RCCHMTLN       001D 00000020
RCCHPROD       0A30
RCCHSTTM       0A08
RCCHWCP        0848
RCCHWICF       084C
RCCHWIFL       084B
RCCHWMNT       0848
RCCHWZIP       084D
RCCICFAB       0048
RCCICFMK       06F0
RCCIFLMK       06E8
RCCINDIS       0A28 10
RCCINYMT       0A20
RCCLFTIM       012C
RCCLNINT       0050
RCCMAXAV       005C
RCCMCDIS       0A28 20
RCCMCF         0004
RCCMCYMT       0A1C
RCCMINSV       0060
RCCMNCS1       0A2A 80
RCCMNDIS       0A28 08
RCCMNEST       0449 07
RCCMNYMT       0A24
RCCMPCQ0       007C
RCCMPCQ1       0080
RCCMPDAC       0078
RCCMPDLY       0068
RCCMPSQ0       0084
RCCMPSQ1       0088
RCCMTCFM       080A
RCCMTCRF       0808 10
RCCMTCSV       080A 40
RCCMTCTM       0830 00000000
RCCMTCTR       0A10
RCCMTFRS       080D
RCCMTFST       0810
RCCMTHIG       0808 02
RCCMTHOR       0808 04
RCCMTLCP       0808 20
RCCMTNTI       0808 80
RCCMTPMT       080B
RCCMTRBL       0808 08
RCCMTRF1       080A 80
RCCMTRSM       0808
RCCMTSFA       0808 01
RCCMTTDW       080C
RCCMT390       0808 40
RCCMXAVS       0058 08
RCCMXCOR       08E0
RCCNCAPF       0800
RCCNCAPI       0804
RCCNOINT       0058
RCCNUPK        07A4
RCCOSCCT       07B4
RCCPCtoCT      0A00
RCCPKFLG       06C4
RCCPKMST       06C8
RCCPKNEW       06C4 01
RCCPKWRK       0700
RCCPROD        000C
RCCQCTRI       022C
RCCQSI         032C
RCCRCNUM       0010
RCCREBAL       0694
RCCSAVL        0064 80
RCCSCAPF       07F8
RCCSCAPI       07FC
RCCSCCMV       080A 20
RCCSCCP        09EC
RCCSCSPC       09F4
RCCSFQ         000C
RCCSFQL        0018
RCCSIGCT       07E8
RCCSIGTD       07E0
RCCSIGTE       07D8
RCCSIGTM       07D0
RCCSMALL       0858
RCCSMCP        0860
RCCSMFIN       085A 00000040
RCCSMFLG       085A
RCCSMICF       0864
RCCSMIFL       0863
RCCSMINA       085A 00000000
RCCSMINI       0859 80
RCCSMMNT       0860
RCCSMSET       0859
RCCSMSTA       085A 00000080
RCCSMTLK       0818
RCCSMTSQ       0814
RCCSMTTM       0830
RCCSMZIP       0865
RCCSPCH        001C 80
RCCSPCP        09E8
RCCSPSPC       09F0
RCCSRCQ        0008
RCCSTFLG       0064
RCCSTPCR       0A80
RCCSTPST       0680
RCCSTPT        0688
RCCSTSIP       0449
RCCSVNUM       0014
RCCSYCP        0850
RCCSYICF       0854
RCCSYIFL       0853
RCCSYMNT       0850
RCCSYZIP       0855
RCCTHRCL       0018
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
RCCUTIL        0008
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
RCCYMTAD       0000
RCCYMTCB       0A10 00000001
RCCYMTDD       0010 0000000A
RCCYMTDL       0010 00000050
RCCYMTFL       000C
RCCYMTHD       0A10 00000002
RCCYMTIN       0A10 00000004
RCCYMTLN       0004
RCCYMTMC       0A10 00000003
RCCYMTMN       0A10 00000005
RCCYMTMX       0A10 00000005
RCCYMTPL       0010
RCCYMTRC       0008
RCCYMTRS       000C
RCCYMTR1       000C
RCCYMTR2       000E
RCCYMTUS       0A14
RCCZAPMK       06E0
RCCZIPMK       06F8
RCC111         010C
RCC111NT       0114
RCC122         0110
RCC122NT       0118
RCC151x        044C
 
This information is based on z/VM 6.4.0 Last updated on 24 Aug 2016 at 09:42:37 EDT.
Copyright IBM Corporation, 1990, 2016