sys/platform/pc64/include/efi.h

   1 /*-
   2  * Copyright (c) 2016 The FreeBSD Foundation
   3  * All rights reserved.
   4  *
   5  * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
   6  * under sponsorship from the FreeBSD Foundation.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $FreeBSD: head/sys/amd64/include/efi.h 306209 2016-09-22 19:04:51Z imp $
  30  */
  31
  32 #ifndef __AMD64_INCLUDE_EFI_H_
  33 #define __AMD64_INCLUDE_EFI_H_
  34
  35 /*
  36  * XXX: from gcc 6.2 manual:
  37  * Note, the ms_abi attribute for Microsoft Windows 64-bit targets
  38  * currently requires the -maccumulate-outgoing-args option.
  39  */
  40 #define EFIABI_ATTR     __attribute__((ms_abi))
  41
  42 #ifdef _KERNEL
  43 struct uuid;
  44 struct efi_tm;
  45
  46 int efi_get_table(struct uuid *uuid, void **ptr);
  47 int efi_get_time(struct efi_tm *tm);
  48 int efi_get_time_locked(struct efi_tm *tm);
  49 int efi_reset_system(void);
  50 int efi_set_time(struct efi_tm *tm);
  51 int efi_set_time_locked(struct efi_tm *tm);
  52 int efi_var_get(uint16_t *name, struct uuid *vendor, uint32_t *attrib,
  53     size_t *datasize, void *data);
  54 int efi_var_nextname(size_t *namesize, uint16_t *name, struct uuid *vendor);
  55 int efi_var_set(uint16_t *name, struct uuid *vendor, uint32_t attrib,
  56     size_t datasize, void *data);
  57 #endif
  58
  59 #endif /* __AMD64_INCLUDE_EFI_H_ */