1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2011 NetApp, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 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. 18 * 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 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #ifndef _VMM_STAT_H_ 35 #define _VMM_STAT_H_ 36 37 struct vm; 38 39 #define MAX_VMM_STAT_ELEMS 64 /* arbitrary */ 40 41 enum vmm_stat_scope { 42 VMM_STAT_SCOPE_ANY, 43 VMM_STAT_SCOPE_INTEL, /* Intel VMX specific statistic */ 44 VMM_STAT_SCOPE_AMD, /* AMD SVM specific statistic */ 45 }; 46 47 struct vmm_stat_type; 48 typedef void (*vmm_stat_func_t)(struct vm *vm, int vcpu, 49 struct vmm_stat_type *stat); 50 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 */ 55 vmm_stat_func_t func; 56 enum vmm_stat_scope scope; 57 }; 58 59 void vmm_stat_register(void *arg); 60 61 #define VMM_STAT_FDEFINE(type, nelems, desc, func, scope) \ 62 struct vmm_stat_type type[1] = { \ 63 { -1, nelems, desc, func, scope } \ 64 }; \ 65 SYSINIT(type##_stat, SI_SUB_KLD, SI_ORDER_ANY, vmm_stat_register, type) 66 67 #define VMM_STAT_DEFINE(type, nelems, desc, scope) \ 68 VMM_STAT_FDEFINE(type, nelems, desc, NULL, scope) 69 70 #define VMM_STAT_DECLARE(type) \ 71 extern struct vmm_stat_type type[1] 72 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) 79 80 #define VMM_STAT_FUNC(type, desc, func) \ 81 VMM_STAT_FDEFINE(type, 1, desc, func, VMM_STAT_SCOPE_ANY) 82 83 #define VMM_STAT_ARRAY(type, nelems, desc) \ 84 VMM_STAT_DEFINE(type, nelems, desc, VMM_STAT_SCOPE_ANY) 85 86 void *vmm_stat_alloc(void); 87 void vmm_stat_init(void *vp); 88 void vmm_stat_free(void *vp); 89 90 /* 91 * 'buf' should be at least fit 'MAX_VMM_STAT_TYPES' entries 92 */ 93 int vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf); 94 int vmm_stat_desc_copy(int index, char *buf, int buflen); 95 96 static void __inline 97 vmm_stat_array_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, 98 int statidx, uint64_t x) 99 { 100 #ifdef VMM_KEEP_STATS 101 uint64_t *stats; 102 103 stats = vcpu_stats(vm, vcpu); 104 105 if (vst->index >= 0 && statidx < vst->nelems) 106 stats[vst->index + statidx] += x; 107 #endif 108 } 109 110 static void __inline 111 vmm_stat_array_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, 112 int statidx, uint64_t val) 113 { 114 #ifdef VMM_KEEP_STATS 115 uint64_t *stats; 116 117 stats = vcpu_stats(vm, vcpu); 118 119 if (vst->index >= 0 && statidx < vst->nelems) 120 stats[vst->index + statidx] = val; 121 #endif 122 } 123 124 static void __inline 125 vmm_stat_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t x) 126 { 127 128 #ifdef VMM_KEEP_STATS 129 vmm_stat_array_incr(vm, vcpu, vst, 0, x); 130 #endif 131 } 132 133 static void __inline 134 vmm_stat_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t val) 135 { 136 137 #ifdef VMM_KEEP_STATS 138 vmm_stat_array_set(vm, vcpu, vst, 0, val); 139 #endif 140 } 141 142 VMM_STAT_DECLARE(VCPU_MIGRATIONS); 143 VMM_STAT_DECLARE(VMEXIT_COUNT); 144 VMM_STAT_DECLARE(VMEXIT_EXTINT); 145 VMM_STAT_DECLARE(VMEXIT_HLT); 146 VMM_STAT_DECLARE(VMEXIT_CR_ACCESS); 147 VMM_STAT_DECLARE(VMEXIT_RDMSR); 148 VMM_STAT_DECLARE(VMEXIT_WRMSR); 149 VMM_STAT_DECLARE(VMEXIT_MTRAP); 150 VMM_STAT_DECLARE(VMEXIT_PAUSE); 151 VMM_STAT_DECLARE(VMEXIT_INTR_WINDOW); 152 VMM_STAT_DECLARE(VMEXIT_NMI_WINDOW); 153 VMM_STAT_DECLARE(VMEXIT_INOUT); 154 VMM_STAT_DECLARE(VMEXIT_CPUID); 155 VMM_STAT_DECLARE(VMEXIT_NESTED_FAULT); 156 VMM_STAT_DECLARE(VMEXIT_INST_EMUL); 157 VMM_STAT_DECLARE(VMEXIT_UNKNOWN); 158 VMM_STAT_DECLARE(VMEXIT_ASTPENDING); 159 VMM_STAT_DECLARE(VMEXIT_USERSPACE); 160 VMM_STAT_DECLARE(VMEXIT_RENDEZVOUS); 161 VMM_STAT_DECLARE(VMEXIT_EXCEPTION); 162 VMM_STAT_DECLARE(VMEXIT_REQIDLE); 163 #endif 164