1 /* $OpenBSD: efivar.h,v 1.2 2024/07/10 10:53:55 kettenis Exp $ */ 2 /* 3 * Copyright (c) 2022 Mark Kettenis <kettenis@openbsd.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #ifndef _MACHINE_EFIVAR_H_ 19 #define _MACHINE_EFIVAR_H_ 20 21 #include <dev/clock_subr.h> 22 23 struct efi_softc { 24 struct device sc_dev; 25 struct pmap *sc_pm; 26 EFI_RUNTIME_SERVICES *sc_rs; 27 EFI_SYSTEM_RESOURCE_TABLE *sc_esrt; 28 u_long sc_psw; 29 30 struct todr_chip_handle sc_todr; 31 }; 32 33 34 extern EFI_GET_VARIABLE efi_get_variable; 35 extern EFI_SET_VARIABLE efi_set_variable; 36 extern EFI_GET_NEXT_VARIABLE_NAME efi_get_next_variable_name; 37 38 void efi_enter(struct efi_softc *); 39 void efi_leave(struct efi_softc *); 40 41 extern label_t efi_jmpbuf; 42 43 #define efi_enter_check(sc) (setjmp(&efi_jmpbuf) ? \ 44 (efi_leave(sc), EFAULT) : (efi_enter(sc), 0)) 45 46 #endif /* _MACHINE_EFIVAR_H_ */ 47