2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2011 NetApp, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 #define MAX_VMM_STAT_ELEMS 64 /* arbitrary */
43 VMM_STAT_SCOPE_INTEL, /* Intel VMX specific statistic */
44 VMM_STAT_SCOPE_AMD, /* AMD SVM specific statistic */
48 typedef void (*vmm_stat_func_t)(struct vm *vm, int vcpu,
49 struct vmm_stat_type *stat);
51 struct vmm_stat_type {
52 int index; /* position in the stats buffer */
53 int nelems; /* standalone or array */
54 const char *desc; /* description of statistic */
56 enum vmm_stat_scope scope;
59 void vmm_stat_register(void *arg);
61 #define VMM_STAT_FDEFINE(type, nelems, desc, func, scope) \
62 struct vmm_stat_type type[1] = { \
63 { -1, nelems, desc, func, scope } \
65 SYSINIT(type##_stat, SI_SUB_KLD, SI_ORDER_ANY, vmm_stat_register, type)
67 #define VMM_STAT_DEFINE(type, nelems, desc, scope) \
68 VMM_STAT_FDEFINE(type, nelems, desc, NULL, scope)
70 #define VMM_STAT_DECLARE(type) \
71 extern struct vmm_stat_type type[1]
73 #define VMM_STAT(type, desc) \
74 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_ANY)
75 #define VMM_STAT_INTEL(type, desc) \
76 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_INTEL)
77 #define VMM_STAT_AMD(type, desc) \
78 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_AMD)
80 #define VMM_STAT_FUNC(type, desc, func) \
81 VMM_STAT_FDEFINE(type, 1, desc, func, VMM_STAT_SCOPE_ANY)
83 #define VMM_STAT_ARRAY(type, nelems, desc) \
84 VMM_STAT_DEFINE(type, nelems, desc, VMM_STAT_SCOPE_ANY)
86 void *vmm_stat_alloc(void);
87 void vmm_stat_init(void *vp);
88 void vmm_stat_free(void *vp);
90 int vmm_stat_copy(struct vm *vm, int vcpu, int index, int count,
91 int *num_stats, uint64_t *buf);
92 int vmm_stat_desc_copy(int index, char *buf, int buflen);
95 vmm_stat_array_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst,
96 int statidx, uint64_t x)
101 stats = vcpu_stats(vm, vcpu);
103 if (vst->index >= 0 && statidx < vst->nelems)
104 stats[vst->index + statidx] += x;
109 vmm_stat_array_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst,
110 int statidx, uint64_t val)
112 #ifdef VMM_KEEP_STATS
115 stats = vcpu_stats(vm, vcpu);
117 if (vst->index >= 0 && statidx < vst->nelems)
118 stats[vst->index + statidx] = val;
123 vmm_stat_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t x)
126 #ifdef VMM_KEEP_STATS
127 vmm_stat_array_incr(vm, vcpu, vst, 0, x);
132 vmm_stat_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t val)
135 #ifdef VMM_KEEP_STATS
136 vmm_stat_array_set(vm, vcpu, vst, 0, val);
140 VMM_STAT_DECLARE(VCPU_MIGRATIONS);
141 VMM_STAT_DECLARE(VMEXIT_COUNT);
142 VMM_STAT_DECLARE(VMEXIT_EXTINT);
143 VMM_STAT_DECLARE(VMEXIT_HLT);
144 VMM_STAT_DECLARE(VMEXIT_CR_ACCESS);
145 VMM_STAT_DECLARE(VMEXIT_RDMSR);
146 VMM_STAT_DECLARE(VMEXIT_WRMSR);
147 VMM_STAT_DECLARE(VMEXIT_MTRAP);
148 VMM_STAT_DECLARE(VMEXIT_PAUSE);
149 VMM_STAT_DECLARE(VMEXIT_INTR_WINDOW);
150 VMM_STAT_DECLARE(VMEXIT_NMI_WINDOW);
151 VMM_STAT_DECLARE(VMEXIT_INOUT);
152 VMM_STAT_DECLARE(VMEXIT_CPUID);
153 VMM_STAT_DECLARE(VMEXIT_NESTED_FAULT);
154 VMM_STAT_DECLARE(VMEXIT_INST_EMUL);
155 VMM_STAT_DECLARE(VMEXIT_UNKNOWN);
156 VMM_STAT_DECLARE(VMEXIT_ASTPENDING);
157 VMM_STAT_DECLARE(VMEXIT_USERSPACE);
158 VMM_STAT_DECLARE(VMEXIT_RENDEZVOUS);
159 VMM_STAT_DECLARE(VMEXIT_EXCEPTION);
160 VMM_STAT_DECLARE(VMEXIT_REQIDLE);