1/*-
2 * Copyright (c) 2016 The FreeBSD Foundation
3 *
4 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
5 * under sponsorship from the FreeBSD Foundation.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef __AMD64_INCLUDE_EFI_H_
30#define __AMD64_INCLUDE_EFI_H_
31
32#include <sys/types.h>
33
34/*
35 * XXX: from gcc 6.2 manual:
36 * Note, the ms_abi attribute for Microsoft Windows 64-bit targets
37 * currently requires the -maccumulate-outgoing-args option.
38 *
39 * Avoid EFIABI_ATTR declarations for compilers that don't support it.
40 * GCC support began in version 4.4.
41 */
42#if defined(__clang__) || defined(__GNUC__) && \
43 (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 4)
44#define EFIABI_ATTR __attribute__((ms_abi))
45#endif
46
47#ifdef _KERNEL
48#include <isa/rtc.h>
49#define ARCH_MAY_USE_EFI
50
51#define EFI_TIME_LOCK() mtx_lock(&atrtc_time_lock)
52#define EFI_TIME_UNLOCK() mtx_unlock(&atrtc_time_lock)
53#define EFI_TIME_OWNED() mtx_assert(&atrtc_time_lock, MA_OWNED)
54
55#define EFI_RT_HANDLE_FAULTS_DEFAULT 1
56
57#define EFI_MAP_BOOTTYPE_ALLOWED(type) (((efi_map_regs >> (type)) & 1) != 0)
58
59extern uint32_t efi_map_regs;
60#endif
61
62struct efirt_callinfo {
63 const char *ec_name;
64 register_t ec_efi_status;
65 register_t ec_fptr;
66 register_t ec_argcnt;
67 register_t ec_arg1;
68 register_t ec_arg2;
69 register_t ec_arg3;
70 register_t ec_arg4;
71 register_t ec_arg5;
72 register_t ec_rbx;
73 register_t ec_rsp;
74 register_t ec_rbp;
75 register_t ec_r12;
76 register_t ec_r13;
77 register_t ec_r14;
78 register_t ec_r15;
79 register_t ec_rflags;
80};
81
82#endif /* __AMD64_INCLUDE_EFI_H_ */