efi_status
efi_status (*rt_gettime)(struct efi_tm *, struct efi_tmcap *);
efi_status (*rt_settime)(struct efi_tm *);
efi_status (*rt_getwaketime)(uint8_t *, uint8_t *,
efi_status (*rt_setwaketime)(uint8_t, struct efi_tm *);
efi_status (*rt_setvirtual)(u_long, u_long, uint32_t,
efi_status (*rt_cvtptr)(u_long, void **);
efi_status (*rt_getvar)(efi_char *, struct uuid *, uint32_t *,
efi_status (*rt_scanvar)(u_long *, efi_char *, struct uuid *);
efi_status (*rt_setvar)(efi_char *, struct uuid *, uint32_t,
efi_status (*rt_gethicnt)(uint32_t *);
efi_status (*rt_reset)(enum efi_reset, efi_status, u_long,