Symbol: SEGBASE_GS_USER_SEL
usr/src/uts/intel/os/desctbls.c
631
xen_set_segment_base(SEGBASE_GS_USER_SEL, 0);
usr/src/uts/intel/os/sundep.c
527
if (HYPERVISOR_set_segment_base(SEGBASE_GS_USER_SEL,