1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*-
* Copyright (c) 2011 NetApp, Inc.
* All rights reserved.
*
* 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 NETAPP, INC ``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 NETAPP, INC 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 _INOUT_H_
#define _INOUT_H_
#include <sys/linker_set.h>
struct vmctx;
struct vm_exit;
/*
* inout emulation handlers return 0 on success and -1 on failure.
*/
typedef int (*inout_func_t)(struct vmctx *ctx, int vcpu, int in, int port,
int bytes, uint32_t *eax, void *arg);
struct inout_port {
const char *name;
int port;
int size;
int flags;
inout_func_t handler;
void *arg;
};
#define IOPORT_F_IN 0x1
#define IOPORT_F_OUT 0x2
#define IOPORT_F_INOUT (IOPORT_F_IN | IOPORT_F_OUT)
/*
* The following flags are used internally and must not be used by
* device models.
*/
#define IOPORT_F_DEFAULT 0x80000000 /* claimed by default handler */
#define INOUT_PORT(name, port, flags, handler) \
static struct inout_port __CONCAT(__inout_port, __LINE__) = { \
#name, \
(port), \
1, \
(flags), \
(handler), \
0 \
}; \
DATA_SET(inout_port_set, __CONCAT(__inout_port, __LINE__))
void init_inout(void);
int emulate_inout(struct vmctx *, int vcpu, struct vm_exit *vmexit,
int strict);
int register_inout(struct inout_port *iop);
int unregister_inout(struct inout_port *iop);
void init_bvmcons(void);
#endif /* _INOUT_H_ */
|
