1/* $OpenBSD: efivar.h,v 1.1 2023/01/14 12:11:10 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
23struct 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 uint64_t sc_cr3;
30
31 struct todr_chip_handle sc_todr;
32};
33
34void efi_enter(struct efi_softc *);
35void efi_leave(struct efi_softc *);
36
37extern label_t efi_jmpbuf;
38
39#define efi_enter_check(sc) (setjmp(&efi_jmpbuf) ? \
40 (efi_leave(sc), EFAULT) : (efi_enter(sc), 0))
41
42#endif /* _MACHINE_EFIVAR_H_ */