xref: /freebsd/usr.sbin/bhyve/bootrom.h (revision 56b17de1e8360fe131d425de20b5e75ff3ea897c)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2015 Neel Natu <neel@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 
29 #ifndef	_BOOTROM_H_
30 #define	_BOOTROM_H_
31 
32 #include <stdbool.h>
33 #include <stddef.h>
34 #include <stdint.h>
35 #include <limits.h>
36 
37 #include "config.h"
38 
39 struct vmctx;
40 
41 void init_bootrom(struct vmctx *ctx);
42 enum {
43 	BOOTROM_ALLOC_TOP = 0x80,
44 	_FORCE_INT = INT_MIN,
45 };
46 int bootrom_alloc(struct vmctx *ctx, size_t len, int prot, int flags,
47     char **region_out, uint64_t *gpa_out);
48 bool bootrom_boot(void);
49 int bootrom_loadrom(struct vmctx *ctx);
50 
51 #endif
52