aboutsummaryrefslogtreecommitdiff
path: root/hw/net/vmware_utils.h
blob: 5307e2ccc9a33a116b3e2825776d7cb891f95447 (plain)
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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/*
 * QEMU VMWARE paravirtual devices - auxiliary code
 *
 * Copyright (c) 2012 Ravello Systems LTD (http://ravellosystems.com)
 *
 * Developed by Daynix Computing LTD (http://www.daynix.com)
 *
 * Authors:
 * Dmitry Fleytman <dmitry@daynix.com>
 * Yan Vugenfirer <yan@daynix.com>
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 *
 */

#ifndef VMWARE_UTILS_H
#define VMWARE_UTILS_H

#include "qemu/range.h"

#ifndef VMW_SHPRN
#define VMW_SHPRN(fmt, ...) do {} while (0)
#endif

/*
 * Shared memory access functions with byte swap support
 * Each function contains printout for reverse-engineering needs
 *
 */
static inline void
vmw_shmem_read(hwaddr addr, void *buf, int len)
{
    VMW_SHPRN("SHMEM r: %" PRIx64 ", len: %d to %p", addr, len, buf);
    cpu_physical_memory_read(addr, buf, len);
}

static inline void
vmw_shmem_write(hwaddr addr, void *buf, int len)
{
    VMW_SHPRN("SHMEM w: %" PRIx64 ", len: %d to %p", addr, len, buf);
    cpu_physical_memory_write(addr, buf, len);
}

static inline void
vmw_shmem_rw(hwaddr addr, void *buf, int len, int is_write)
{
    VMW_SHPRN("SHMEM r/w: %" PRIx64 ", len: %d (to %p), is write: %d",
              addr, len, buf, is_write);

    cpu_physical_memory_rw(addr, buf, len, is_write);
}

static inline void
vmw_shmem_set(hwaddr addr, uint8 val, int len)
{
    int i;
    VMW_SHPRN("SHMEM set: %" PRIx64 ", len: %d (value 0x%X)", addr, len, val);

    for (i = 0; i < len; i++) {
        cpu_physical_memory_write(addr + i, &val, 1);
    }
}

static inline uint32_t
vmw_shmem_ld8(hwaddr addr)
{
    uint8_t res = ldub_phys(addr);
    VMW_SHPRN("SHMEM load8: %" PRIx64 " (value 0x%X)", addr, res);
    return res;
}

static inline void
vmw_shmem_st8(hwaddr addr, uint8_t value)
{
    VMW_SHPRN("SHMEM store8: %" PRIx64 " (value 0x%X)", addr, value);
    stb_phys(addr, value);
}

static inline uint32_t
vmw_shmem_ld16(hwaddr addr)
{
    uint16_t res = lduw_le_phys(addr);
    VMW_SHPRN("SHMEM load16: %" PRIx64 " (value 0x%X)", addr, res);
    return res;
}

static inline void
vmw_shmem_st16(hwaddr addr, uint16_t value)
{
    VMW_SHPRN("SHMEM store16: %" PRIx64 " (value 0x%X)", addr, value);
    stw_le_phys(addr, value);
}

static inline uint32_t
vmw_shmem_ld32(hwaddr addr)
{
    uint32_t res = ldl_le_phys(addr);
    VMW_SHPRN("SHMEM load32: %" PRIx64 " (value 0x%X)", addr, res);
    return res;
}

static inline void
vmw_shmem_st32(hwaddr addr, uint32_t value)
{
    VMW_SHPRN("SHMEM store32: %" PRIx64 " (value 0x%X)", addr, value);
    stl_le_phys(addr, value);
}

static inline uint64_t
vmw_shmem_ld64(hwaddr addr)
{
    uint64_t res = ldq_le_phys(addr);
    VMW_SHPRN("SHMEM load64: %" PRIx64 " (value %" PRIx64 ")", addr, res);
    return res;
}

static inline void
vmw_shmem_st64(hwaddr addr, uint64_t value)
{
    VMW_SHPRN("SHMEM store64: %" PRIx64 " (value %" PRIx64 ")", addr, value);
    stq_le_phys(addr, value);
}

/* Macros for simplification of operations on array-style registers */

/*
 * Whether <addr> lies inside of array-style register defined by <base>,
 * number of elements (<cnt>) and element size (<regsize>)
 *
*/
#define VMW_IS_MULTIREG_ADDR(addr, base, cnt, regsize)                 \
    range_covers_byte(base, cnt * regsize, addr)

/*
 * Returns index of given register (<addr>) in array-style register defined by
 * <base> and element size (<regsize>)
 *
*/
#define VMW_MULTIREG_IDX_BY_ADDR(addr, base, regsize)                  \
    (((addr) - (base)) / (regsize))

#endif