xref: /illumos-gate/usr/src/cmd/bhyve/fwctl.h (revision 4c87aefe)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2015  Peter Grehan <grehan@freebsd.org>
5  * All rights reserved.
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 ``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  * $FreeBSD$
29  */
30 
31 #ifndef _FWCTL_H_
32 #define _FWCTL_H_
33 
34 #include <sys/linker_set.h>
35 
36 /*
37  * Linker set api for export of information to guest firmware via
38  * a sysctl-like OID interface
39  */
40 struct ctl {
41 	const char *c_oid;
42 	const void *c_data;
43 	const int c_len;
44 };
45 
46 #define CTL_NODE(oid, data, len)				\
47 	static struct ctl __CONCAT(__ctl, __LINE__) = {		\
48 		oid,						\
49 		(data),						\
50 		(len),						\
51 	};							\
52 	DATA_SET(ctl_set, __CONCAT(__ctl, __LINE__))
53 
54 void	fwctl_init(void);
55 
56 #endif /* _FWCTL_H_ */
57