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 * Copyright 2018 Joyent, Inc. 35 */ 36 37 #ifndef _VMM_STAT_H_ 38 #define _VMM_STAT_H_ 39 40 #include <machine/vmm.h> 41 42 struct vm; 43 44 #ifdef __FreeBSD__ 45 #define MAX_VMM_STAT_ELEMS 64 /* arbitrary */ 46 #else 47 #define MAX_VMM_STAT_ELEMS (64 + VM_MAXCPU) /* arbitrary */ 48 #endif 49 50 enum vmm_stat_scope { 51 VMM_STAT_SCOPE_ANY, 52 VMM_STAT_SCOPE_INTEL, /* Intel VMX specific statistic */ 53 VMM_STAT_SCOPE_AMD, /* AMD SVM specific statistic */ 54 }; 55 56 struct vmm_stat_type; 57 typedef void (*vmm_stat_func_t)(struct vm *vm, int vcpu, 58 struct vmm_stat_type *stat); 59 60 struct vmm_stat_type { 61 int index; /* position in the stats buffer */ 62 int nelems; /* standalone or array */ 63 const char *desc; /* description of statistic */ 64 vmm_stat_func_t func; 65 enum vmm_stat_scope scope; 66 }; 67 68 void vmm_stat_register(void *arg); 69 70 #define VMM_STAT_FDEFINE(type, nelems, desc, func, scope) \ 71 struct vmm_stat_type type[1] = { \ 72 { -1, nelems, desc, func, scope } \ 73 }; \ 74 SYSINIT(type##_stat, SI_SUB_KLD, SI_ORDER_ANY, vmm_stat_register, type) 75 76 #define VMM_STAT_DEFINE(type, nelems, desc, scope) \ 77 VMM_STAT_FDEFINE(type, nelems, desc, NULL, scope) 78 79 #define VMM_STAT_DECLARE(type) \ 80 extern struct vmm_stat_type type[1] 81 82 #define VMM_STAT(type, desc) \ 83 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_ANY) 84 #define VMM_STAT_INTEL(type, desc) \ 85 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_INTEL) 86 #define VMM_STAT_AMD(type, desc) \ 87 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_AMD) 88 89 #define VMM_STAT_FUNC(type, desc, func) \ 90 VMM_STAT_FDEFINE(type, 1, desc, func, VMM_STAT_SCOPE_ANY) 91 92 #define VMM_STAT_ARRAY(type, nelems, desc) \ 93 VMM_STAT_DEFINE(type, nelems, desc, VMM_STAT_SCOPE_ANY) 94 95 void *vmm_stat_alloc(void); 96 void vmm_stat_init(void *vp); 97 void vmm_stat_free(void *vp); 98 99 /* 100 * 'buf' should be at least fit 'MAX_VMM_STAT_TYPES' entries 101 */ 102 int vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf); 103 int vmm_stat_desc_copy(int index, char *buf, int buflen); 104 105 static __inline void 106 vmm_stat_array_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, 107 int statidx, uint64_t x) 108 { 109 #ifdef VMM_KEEP_STATS 110 uint64_t *stats; 111 112 stats = vcpu_stats(vm, vcpu); 113 114 if (vst->index >= 0 && statidx < vst->nelems) 115 stats[vst->index + statidx] += x; 116 #endif 117 } 118 119 static __inline void 120 vmm_stat_array_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, 121 int statidx, uint64_t val) 122 { 123 #ifdef VMM_KEEP_STATS 124 uint64_t *stats; 125 126 stats = vcpu_stats(vm, vcpu); 127 128 if (vst->index >= 0 && statidx < vst->nelems) 129 stats[vst->index + statidx] = val; 130 #endif 131 } 132 133 static __inline void 134 vmm_stat_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t x) 135 { 136 137 #ifdef VMM_KEEP_STATS 138 vmm_stat_array_incr(vm, vcpu, vst, 0, x); 139 #endif 140 } 141 142 static __inline void 143 vmm_stat_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t val) 144 { 145 146 #ifdef VMM_KEEP_STATS 147 vmm_stat_array_set(vm, vcpu, vst, 0, val); 148 #endif 149 } 150 151 VMM_STAT_DECLARE(VCPU_MIGRATIONS); 152 VMM_STAT_DECLARE(VMEXIT_COUNT); 153 VMM_STAT_DECLARE(VMEXIT_EXTINT); 154 VMM_STAT_DECLARE(VMEXIT_HLT); 155 VMM_STAT_DECLARE(VMEXIT_CR_ACCESS); 156 VMM_STAT_DECLARE(VMEXIT_RDMSR); 157 VMM_STAT_DECLARE(VMEXIT_WRMSR); 158 VMM_STAT_DECLARE(VMEXIT_MTRAP); 159 VMM_STAT_DECLARE(VMEXIT_PAUSE); 160 VMM_STAT_DECLARE(VMEXIT_INTR_WINDOW); 161 VMM_STAT_DECLARE(VMEXIT_NMI_WINDOW); 162 VMM_STAT_DECLARE(VMEXIT_INOUT); 163 VMM_STAT_DECLARE(VMEXIT_CPUID); 164 VMM_STAT_DECLARE(VMEXIT_NESTED_FAULT); 165 VMM_STAT_DECLARE(VMEXIT_MMIO_EMUL); 166 VMM_STAT_DECLARE(VMEXIT_UNKNOWN); 167 VMM_STAT_DECLARE(VMEXIT_ASTPENDING); 168 VMM_STAT_DECLARE(VMEXIT_EXCEPTION); 169 VMM_STAT_DECLARE(VMEXIT_REQIDLE); 170 VMM_STAT_DECLARE(VMEXIT_RUN_STATE); 171 #endif 172