/*
* Caller must have pmap locked for both of these functions.
*/
void
ldt_alloc(struct pmap *pmap, union descriptor *ldt, size_t len)
{
int slot;
slot = gdt_get_slot1(1);
cpu_info_primary.ci_gdt[slot].ld.ld_base = (u_int32_t)ldt;
cpu_info_primary.ci_gdt[slot].ld.ld_entries =
len / sizeof(union descriptor);
pmap->pm_ldt_sel = GSEL(slot, SEL_KPL);
}
/*
* Caller must have pmap locked for both of these functions.
*/
int
ldt_alloc(union descriptor *ldtp, size_t len)
{
int slot;
#ifndef XEN
slot = gdt_get_slot();
setgdt(slot, ldtp, len - 1, SDT_SYSLDT, SEL_KPL, 0, 0);
#else
slot = gdt_get_slot1(1);
cpu_info_primary.ci_gdt[slot].ld.ld_base = (uint32_t)ldtp;
cpu_info_primary.ci_gdt[slot].ld.ld_entries =
len / sizeof(union descriptor);
#endif
return GSEL(slot, SEL_KPL);
}
int
gdt_get_slot()
{
return gdt_get_slot1(0);
}
int
gdt_get_slot(void)
{
return gdt_get_slot1(0);
}