freebsd-dev/sys/arm64/include/efi.h
Greg V a29bff7a52 smbios: support getting address from EFI
On some systems (e.g. Lenovo ThinkPad X240, Apple MacBookPro12,1)
the SMBIOS entry point is not found in the <0xFFFFF space.

Follow the SMBIOS spec and use the EFI Configuration Table for
locating the entry point on EFI systems.

Reviewed by:	rpokala, dab
MFC after:	1 week
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D29276
2021-04-07 14:46:29 -05:00

61 lines
2.0 KiB
C

/*-
* Copyright (c) 2017 Andrew Turner
* All rights reserved.
*
* This software was developed by SRI International and the University of
* Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
* ("CTSRD"), as part of the DARPA CRASH research programme.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef __ARM64_INCLUDE_EFI_H_
#define __ARM64_INCLUDE_EFI_H_
#define EFIABI_ATTR
#ifdef _KERNEL
#define ARCH_MAY_USE_EFI
#define EFI_TIME_LOCK()
#define EFI_TIME_UNLOCK()
#define EFI_TIME_OWNED()
#define EFI_RT_HANDLE_FAULTS_DEFAULT 0
#endif
struct efirt_callinfo {
const char *ec_name;
register_t ec_efi_status;
register_t ec_fptr;
register_t ec_argcnt;
register_t ec_arg1;
register_t ec_arg2;
register_t ec_arg3;
register_t ec_arg4;
register_t ec_arg5;
};
#endif /* __ARM64_INCLUDE_EFI_H_ */