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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure $CRWBK Relocation mapping for HCPCRWBK
00000001 $CRW_VER 1 Mapping version number for this
DSECT. Version is independent of
the CP level and need only be
changed when this DSECT is
changed. The convention is to
increment by 1.
0000 0 Signed 2 $CRW_HDRL Header length (in bytes)
0002 2 Signed 2 $CRW_BITL Length of mapped bits (in bytes)
0004 4 Signed 4 * Reserved for future use
00000008 $CRW_HDLN *-$CRWBK Length of header (bytes)
Bit map: Contains the CRWBK flags that are subject to
relocation. These bits are defined sequentially,
regardless of how they are defined in HCPCRWBK.
This yields a consistent mapping that ensures
compatibility when a guest is relocated between
systems at differing service levels.
Names in the comments column indicate the control
block byte which contains the flag. This name is
subject to change if the flag definition changes.
====> NEVER change bits which already exist here.
====> NEVER change the order of bits in this section.
====> ALWAYS add new bits at the end of this section,
together with new flag bytes as required.
0008 8 Signed 2 $CRW_BITS (0) Bit map area
00000000 $CRW_BLEN *-$CRW_BITS Length of bit map
area
Data: Contains all HCPCRWBK data that is subject to
relocation, except for flag bits, which are
handled separately.
All fields are defined as XLnn to avoid alignment
warnings and to pack the data efficiently.
====> NEVER change fields which already exist here.
====> NEVER change the order of fields in this section.
====> ALWAYS add new fields at the end of this section.
together with new flag bytes as required.
0008 8 Bitstring 1 $CRW_DATA (0) Start of data map
0008 8 Bitstring 1 $CRWFLAGS Channel report codes
0009 9 Bitstring 1 $CRWEFLD CRW Error Recovery Information
000A 10 Bitstring 2 $CRWRSID Resource ID Code
000C 12 Bitstring 4 $CRWNEXT Next CRW pointer
00000010 $CRW_LEN *-$CRWBK Total length, in bytes
00000002 $CRW_SZ ($CRW_LEN+7)/8 Size in
doublewords
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