CP_DEFAULT
#define CPTOPS(cpid) ((psetid_t)((cpid) == CP_DEFAULT ? PS_NONE : (cpid)))
if (psid == CP_DEFAULT)
cp_default.cp_id = CP_DEFAULT;
cp_id_next = CP_DEFAULT + 1;
#define PSTOCP(psid) ((cpupartid_t)((psid) == PS_NONE ? CP_DEFAULT : (psid)))