summaryrefslogtreecommitdiffstats
path: root/sys/amd64/vmm/vmm_stat.h
blob: c69584090264bb640cd6fb5ccdb2914269671566 (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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
/*-
 * 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.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS 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 _VMM_STAT_H_
#define	_VMM_STAT_H_

struct vm;

#define	MAX_VMM_STAT_ELEMS	64		/* arbitrary */

enum vmm_stat_scope {
	VMM_STAT_SCOPE_ANY,
	VMM_STAT_SCOPE_INTEL,		/* Intel VMX specific statistic */
	VMM_STAT_SCOPE_AMD,		/* AMD SVM specific statistic */
};

struct vmm_stat_type;
typedef void (*vmm_stat_func_t)(struct vm *vm, int vcpu,
    struct vmm_stat_type *stat);

struct vmm_stat_type {
	int	index;			/* position in the stats buffer */
	int	nelems;			/* standalone or array */
	const char *desc;		/* description of statistic */
	vmm_stat_func_t func;
	enum vmm_stat_scope scope;
};

void	vmm_stat_register(void *arg);

#define	VMM_STAT_FDEFINE(type, nelems, desc, func, scope)		\
	struct vmm_stat_type type[1] = {				\
		{ -1, nelems, desc, func, scope }			\
	};								\
	SYSINIT(type##_stat, SI_SUB_KLD, SI_ORDER_ANY, vmm_stat_register, type)

#define VMM_STAT_DEFINE(type, nelems, desc, scope) 			\
	VMM_STAT_FDEFINE(type, nelems, desc, NULL, scope)

#define	VMM_STAT_DECLARE(type)						\
	extern struct vmm_stat_type type[1]

#define	VMM_STAT(type, desc)		\
	VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_ANY)
#define	VMM_STAT_INTEL(type, desc)	\
	VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_INTEL)
#define	VMM_STAT_AMD(type, desc)	\
	VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_AMD)

#define	VMM_STAT_FUNC(type, desc, func)	\
	VMM_STAT_FDEFINE(type, 1, desc, func, VMM_STAT_SCOPE_ANY)

#define	VMM_STAT_ARRAY(type, nelems, desc)	\
	VMM_STAT_DEFINE(type, nelems, desc, VMM_STAT_SCOPE_ANY)

void	*vmm_stat_alloc(void);
void	vmm_stat_init(void *vp);
void 	vmm_stat_free(void *vp);

/*
 * 'buf' should be at least fit 'MAX_VMM_STAT_TYPES' entries
 */
int	vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf);
int	vmm_stat_desc_copy(int index, char *buf, int buflen);

static void __inline
vmm_stat_array_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst,
		    int statidx, uint64_t x)
{
#ifdef VMM_KEEP_STATS
	uint64_t *stats;
	
	stats = vcpu_stats(vm, vcpu);

	if (vst->index >= 0 && statidx < vst->nelems)
		stats[vst->index + statidx] += x;
#endif
}

static void __inline
vmm_stat_array_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst,
		   int statidx, uint64_t val)
{
#ifdef VMM_KEEP_STATS
	uint64_t *stats;
	
	stats = vcpu_stats(vm, vcpu);

	if (vst->index >= 0 && statidx < vst->nelems)
		stats[vst->index + statidx] = val;
#endif
}
		   
static void __inline
vmm_stat_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t x)
{

#ifdef VMM_KEEP_STATS
	vmm_stat_array_incr(vm, vcpu, vst, 0, x);
#endif
}

static void __inline
vmm_stat_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t val)
{

#ifdef VMM_KEEP_STATS
	vmm_stat_array_set(vm, vcpu, vst, 0, val);
#endif
}

VMM_STAT_DECLARE(VCPU_MIGRATIONS);
VMM_STAT_DECLARE(VMEXIT_COUNT);
VMM_STAT_DECLARE(VMEXIT_EXTINT);
VMM_STAT_DECLARE(VMEXIT_HLT);
VMM_STAT_DECLARE(VMEXIT_CR_ACCESS);
VMM_STAT_DECLARE(VMEXIT_RDMSR);
VMM_STAT_DECLARE(VMEXIT_WRMSR);
VMM_STAT_DECLARE(VMEXIT_MTRAP);
VMM_STAT_DECLARE(VMEXIT_PAUSE);
VMM_STAT_DECLARE(VMEXIT_INTR_WINDOW);
VMM_STAT_DECLARE(VMEXIT_NMI_WINDOW);
VMM_STAT_DECLARE(VMEXIT_INOUT);
VMM_STAT_DECLARE(VMEXIT_CPUID);
VMM_STAT_DECLARE(VMEXIT_NESTED_FAULT);
VMM_STAT_DECLARE(VMEXIT_INST_EMUL);
VMM_STAT_DECLARE(VMEXIT_UNKNOWN);
VMM_STAT_DECLARE(VMEXIT_ASTPENDING);
VMM_STAT_DECLARE(VMEXIT_USERSPACE);
VMM_STAT_DECLARE(VMEXIT_RENDEZVOUS);
VMM_STAT_DECLARE(VMEXIT_EXCEPTION);
VMM_STAT_DECLARE(VMEXIT_REQIDLE);
#endif
OpenPOWER on IntegriCloud