PsIsThreadInSilo

bool __fastcall PsIsThreadInSilo(__int64 a1, __int64 a2){
  if( !a2 )
    return 1;
  if( *(_QWORD *)(a1 + 1544) == -3i64 )
    return PsIsProcessInSilo(*(_QWORD *)(a1 + 544), a2);
  return PspIsSiloInSilo(*(_EJOB **)(a1 + 1544), (_EJOB *)a2) != 0;
}

Referenced by:

VrpHandleIoctlCreateMultipleNamespaceNodes
VrpHandleIoctlCreateNamespaceNode
VrpHandleIoctlGetVirtualRootKey
VrpHandleIoctlInitializeJobForVreg
VrpHandleIoctlLoadDifferencingHive
VrpHandleIoctlUnloadDynamicallyLoadedHives