KGS_SEL
movw $KGS_SEL, %dx; \
cmpw $KGS_SEL, REGOFF_GS(%esp); \
return (KGS_SEL);
load_segment_registers((KCS_SEL | SEL_KPL), KFS_SEL, KGS_SEL, KDS_SEL);
load_segment_registers(KCS_SEL, KFS_SEL, KGS_SEL, KDS_SEL);
__set_gs(KGS_SEL);