Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
$SIEBK
Control Block Contents
$SIEBK DSECT
Cross Reference (Contains links to field and bit definitions)
$SIEBK Prolog
NAME : LGRSIEBK DESCRIPTION: Relocation mapping for HCPSIEBK DSECT : $SIEBK FUNCTION : LGRSIEBK describes those fields of the SIEBK that will be migrated to the destination system during guest relocation. LOCATED BY : This is a mapping of the RDODATA area within the RDOBK during guest relocation. RELOCATION CONSIDERATIONS : This control block is used during live guest relocation. It is used to relocate a control block defined in a corresponding HCP COPY file. Any fields or bits defined in HCPSIEBK which are required on the destination system must be defined here, and code must be added to migrate the field or bit during a relocation.
$SIEBK Control Block Content
$SIEBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure $SIEBK Relocation mapping for HCPSIEBK 00000001 $SIE_VER 1 Mapping version number 0000 0 Signed 2 $SIE_HDRL Header length (in bytes) 0002 2 Signed 2 $SIE_BITL Length of mapped bits (in bytes) 0004 4 Signed 4 * Reserved for future use 00000008 $SIE_HDLN *-$SIEBK Length of header (bytes) Bit map: Contains the SIEBK flags that are subject to relocation. These bits are defined sequentially, regardless of how they are defined in HCPSIEBK. 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 $SIE_BITS (0) Bit map area 0008 8 Bitstring 1 $SIE0 1... .... $SIEESAME X'80' $SIEESAME SIEMODEX .1.. .... $SIEXA X'40' $SIEXA SIEMODE ..1. .... $SIEECMVP X'20' $SIEECMVP SIEECA0 00000001 $SIE_BLEN *-$SIE_BITS Length of bit map area Data: Contains all HCPSIEBK 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. 0009 9 Bitstring 1 $SIE_DATA (0) Start of data map 0009 9 Bitstring 4 $SIEPREFX Guest prefix register value 000D 13 Bitstring 8 $SIECPUTM Guest CPU timer value 0015 21 Bitstring 8 $SIECKC Guest clock comparator value 001D 29 Bitstring 8 $SIEEPOCH Guest time-of-day epoch 0025 37 Bitstring 2 $SIEICPUA Virtual CPU address (bits 10-15) 0027 39 Bitstring 1 $SIEICODE Interception event code 0028 40 Bitstring 4 $SIETODPR TOD programmable register 002C 44 Bitstring 8 $SIEGMSLM Guest real main storage limit 0034 52 Bitstring 16 $SIEGPSW Guest PSW (31-bit and 64-bit) 0044 68 Bitstring 52 $SIEUZP0 Guest prefix page values 0078 120 Bitstring 128 $SIEGCRS Guest control registers 0-15 00F8 248 Bitstring 8 $SIEBEAR Breaking-event-address register 00000100 $SIE_LEN *-$SIEBK Total length, in bytes 00000020 $SIE_SZ ($SIE_LEN+7)/8 Size in doublewords
$SIEBK Storage Layout
*** $SIEBK - Relocation mapping for HCPSIEBK * * +-------------+-------------+---------------------------+ * 0 | $SIE_HDRL | $SIE_BITL |///////////////////////////| * +------+------+-------------+------+--------------------+ * 8 |$SIE0 | $SIEPREFX | (00D)- | * +------+---------------------------+--------------------+ * 10 | -$SIECPUTM | (015)- | * +----------------------------------+--------------------+ * 18 | -$SIECKC | (01D)- | * +----------------------------------+-------------+------+ * 20 | -$SIEEPOCH | $SIEICPUA |(027) | * +---------------------------+------+-------------+------+ * 28 | $SIETODPR | $SIEGMSLM- | * +---------------------------+---------------------------+ * 30 | -(02C) | | * +---------------------------+ | * | $SIEGPSW | * | +---------------------------+ * | | | * +---------------------------+ | * 48 | | * = $SIEUZP0 = * | | * +-------------------------------------------------------+ * 78 | | * = $SIEGCRS = * | | * +-------------------------------------------------------+ * F8 | $SIEBEAR | * +-------------------------------------------------------+ * 100 * *** $SIEBK - Relocation mapping for HCPSIEBK
$SIEBK Cross Reference
Symbol Dspl Value -------------- ---- ----- $SIE_BITL 0002 $SIE_BITS 0008 $SIE_BLEN 0008 00000001 $SIE_DATA 0009 $SIE_HDLN 0004 00000008 $SIE_HDRL 0000 $SIE_LEN 00F8 00000100 $SIE_SZ 00F8 00000020 $SIE_VER 0000 00000001 $SIEBEAR 00F8 $SIECKC 0015 $SIECPUTM 000D $SIEECMVP 0008 20 $SIEEPOCH 001D $SIEESAME 0008 80 $SIEGCRS 0078 $SIEGMSLM 002C $SIEGPSW 0034 $SIEICODE 0027 $SIEICPUA 0025 $SIEPREFX 0009 $SIETODPR 0028 $SIEUZP0 0044 $SIEXA 0008 40 $SIE0 0008
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