xref: /freebsd/usr.sbin/bhyve/mem.h (revision 4d1e669cadff30b4cfda6eaf356b325dceac6357)
1*4d1e669cSPeter Grehan /*-
2*4d1e669cSPeter Grehan  * Copyright (c) 2012 NetApp, Inc.
3*4d1e669cSPeter Grehan  * All rights reserved.
4*4d1e669cSPeter Grehan  *
5*4d1e669cSPeter Grehan  * Redistribution and use in source and binary forms, with or without
6*4d1e669cSPeter Grehan  * modification, are permitted provided that the following conditions
7*4d1e669cSPeter Grehan  * are met:
8*4d1e669cSPeter Grehan  * 1. Redistributions of source code must retain the above copyright
9*4d1e669cSPeter Grehan  *    notice, this list of conditions and the following disclaimer.
10*4d1e669cSPeter Grehan  * 2. Redistributions in binary form must reproduce the above copyright
11*4d1e669cSPeter Grehan  *    notice, this list of conditions and the following disclaimer in the
12*4d1e669cSPeter Grehan  *    documentation and/or other materials provided with the distribution.
13*4d1e669cSPeter Grehan  *
14*4d1e669cSPeter Grehan  * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
15*4d1e669cSPeter Grehan  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*4d1e669cSPeter Grehan  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*4d1e669cSPeter Grehan  * ARE DISCLAIMED.  IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
18*4d1e669cSPeter Grehan  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*4d1e669cSPeter Grehan  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*4d1e669cSPeter Grehan  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*4d1e669cSPeter Grehan  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*4d1e669cSPeter Grehan  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*4d1e669cSPeter Grehan  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*4d1e669cSPeter Grehan  * SUCH DAMAGE.
25*4d1e669cSPeter Grehan  *
26*4d1e669cSPeter Grehan  * $FreeBSD$
27*4d1e669cSPeter Grehan  */
28*4d1e669cSPeter Grehan 
29*4d1e669cSPeter Grehan #ifndef _MEM_H_
30*4d1e669cSPeter Grehan #define	_MEM_H_
31*4d1e669cSPeter Grehan 
32*4d1e669cSPeter Grehan #include <sys/linker_set.h>
33*4d1e669cSPeter Grehan 
34*4d1e669cSPeter Grehan struct vmctx;
35*4d1e669cSPeter Grehan 
36*4d1e669cSPeter Grehan typedef int (*mem_func_t)(struct vmctx *ctx, int vcpu, int dir, uint64_t addr,
37*4d1e669cSPeter Grehan 			  int size, uint64_t *val, void *arg1, long arg2);
38*4d1e669cSPeter Grehan 
39*4d1e669cSPeter Grehan struct mem_range {
40*4d1e669cSPeter Grehan 	const char 	*name;
41*4d1e669cSPeter Grehan 	int		flags;
42*4d1e669cSPeter Grehan 	mem_func_t	handler;
43*4d1e669cSPeter Grehan 	void		*arg1;
44*4d1e669cSPeter Grehan 	long		arg2;
45*4d1e669cSPeter Grehan 	uint64_t  	base;
46*4d1e669cSPeter Grehan 	uint64_t  	size;
47*4d1e669cSPeter Grehan };
48*4d1e669cSPeter Grehan #define	MEM_F_READ		0x1
49*4d1e669cSPeter Grehan #define	MEM_F_WRITE		0x2
50*4d1e669cSPeter Grehan #define	MEM_F_RW		0x3
51*4d1e669cSPeter Grehan 
52*4d1e669cSPeter Grehan void	init_mem(void);
53*4d1e669cSPeter Grehan int     emulate_mem(struct vmctx *, int vcpu, uint64_t paddr, uint64_t rip,
54*4d1e669cSPeter Grehan 		    uint64_t cr3, int mode);
55*4d1e669cSPeter Grehan 
56*4d1e669cSPeter Grehan int	register_mem(struct mem_range *memp);
57*4d1e669cSPeter Grehan 
58*4d1e669cSPeter Grehan #endif	/* _MEM_H_ */
59