* <https://libre-soc.org/openpower/sv/rfc/ls010/>
* <https://bugs.libre-soc.org/show_bug.cgi?id=1045>
* <https://git.openpower.foundation/isa/PowerISA/issues/64>
+* <https://git.openpower.foundation/isa/PowerISA/issues/121>
**Severity**: Major
**Notes and Observations**:
-1. TODO
+Related RFCs are [[ls008]] for the two Management instructions `setvl`
+and `svstep`, and [ls009]] for the REMAP Subsystem. Also [[ls001]] is
+a Dependency as it introduces Primary Opcode 9 64-bit encoding. An
+additional RFC [[ls005]] introduced XLEN on which SVP64 is also critically
+dependent, for Element-width Overrides.
**Changes**