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 /* 32 * Copyright 2018 Joyent, Inc. 33 */ 34 35 #ifndef _VMM_STAT_H_ 36 #define _VMM_STAT_H_ 37 38 #include <machine/vmm.h> 39 40 struct vm; 41 42 #ifdef __FreeBSD__ 43 #define MAX_VMM_STAT_ELEMS 64 /* arbitrary */ 44 #else 45 #define MAX_VMM_STAT_ELEMS (64 + VM_MAXCPU) /* arbitrary */ 46 #endif 47 48 enum vmm_stat_scope { 49 VMM_STAT_SCOPE_ANY, 50 VMM_STAT_SCOPE_INTEL, /* Intel VMX specific statistic */ 51 VMM_STAT_SCOPE_AMD, /* AMD SVM specific statistic */ 52 }; 53 54 struct vmm_stat_type; 55 typedef void (*vmm_stat_func_t)(struct vm *vm, int vcpu, 56 struct vmm_stat_type *stat); 57 58 struct vmm_stat_type { 59 int index; /* position in the stats buffer */ 60 int nelems; /* standalone or array */ 61 const char *desc; /* description of statistic */ 62 vmm_stat_func_t func; 63 enum vmm_stat_scope scope; 64 }; 65 66 void vmm_stat_register(void *arg); 67 68 #define VMM_STAT_FDEFINE(type, nelems, desc, func, scope) \ 69 struct vmm_stat_type type[1] = { \ 70 { -1, nelems, desc, func, scope } \ 71 }; \ 72 SYSINIT(type##_stat, SI_SUB_KLD, SI_ORDER_ANY, vmm_stat_register, type) 73 74 #define VMM_STAT_DEFINE(type, nelems, desc, scope) \ 75 VMM_STAT_FDEFINE(type, nelems, desc, NULL, scope) 76 77 #define VMM_STAT_DECLARE(type) \ 78 extern struct vmm_stat_type type[1] 79 80 #define VMM_STAT(type, desc) \ 81 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_ANY) 82 #define VMM_STAT_INTEL(type, desc) \ 83 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_INTEL) 84 #define VMM_STAT_AMD(type, desc) \ 85 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_AMD) 86 87 #define VMM_STAT_FUNC(type, desc, func) \ 88 VMM_STAT_FDEFINE(type, 1, desc, func, VMM_STAT_SCOPE_ANY) 89 90 #define VMM_STAT_ARRAY(type, nelems, desc) \ 91 VMM_STAT_DEFINE(type, nelems, desc, VMM_STAT_SCOPE_ANY) 92 93 void *vmm_stat_alloc(void); 94 void vmm_stat_init(void *vp); 95 void vmm_stat_free(void *vp); 96 97 int vmm_stat_copy(struct vm *vm, int vcpu, int index, int count, 98 int *num_stats, uint64_t *buf); 99 int vmm_stat_desc_copy(int index, char *buf, int buflen); 100 101 static __inline void 102 vmm_stat_array_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, 103 int statidx, uint64_t x) 104 { 105 #ifdef VMM_KEEP_STATS 106 uint64_t *stats; 107 108 stats = vcpu_stats(vm, vcpu); 109 110 if (vst->index >= 0 && statidx < vst->nelems) 111 stats[vst->index + statidx] += x; 112 #endif 113 } 114 115 static __inline void 116 vmm_stat_array_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, 117 int statidx, uint64_t val) 118 { 119 #ifdef VMM_KEEP_STATS 120 uint64_t *stats; 121 122 stats = vcpu_stats(vm, vcpu); 123 124 if (vst->index >= 0 && statidx < vst->nelems) 125 stats[vst->index + statidx] = val; 126 #endif 127 } 128 129 static __inline void 130 vmm_stat_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t x) 131 { 132 133 #ifdef VMM_KEEP_STATS 134 vmm_stat_array_incr(vm, vcpu, vst, 0, x); 135 #endif 136 } 137 138 static __inline void 139 vmm_stat_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t val) 140 { 141 142 #ifdef VMM_KEEP_STATS 143 vmm_stat_array_set(vm, vcpu, vst, 0, val); 144 #endif 145 } 146 147 VMM_STAT_DECLARE(VCPU_MIGRATIONS); 148 VMM_STAT_DECLARE(VMEXIT_COUNT); 149 VMM_STAT_DECLARE(VMEXIT_EXTINT); 150 VMM_STAT_DECLARE(VMEXIT_HLT); 151 VMM_STAT_DECLARE(VMEXIT_CR_ACCESS); 152 VMM_STAT_DECLARE(VMEXIT_RDMSR); 153 VMM_STAT_DECLARE(VMEXIT_WRMSR); 154 VMM_STAT_DECLARE(VMEXIT_MTRAP); 155 VMM_STAT_DECLARE(VMEXIT_PAUSE); 156 VMM_STAT_DECLARE(VMEXIT_INTR_WINDOW); 157 VMM_STAT_DECLARE(VMEXIT_NMI_WINDOW); 158 VMM_STAT_DECLARE(VMEXIT_INOUT); 159 VMM_STAT_DECLARE(VMEXIT_CPUID); 160 VMM_STAT_DECLARE(VMEXIT_NESTED_FAULT); 161 VMM_STAT_DECLARE(VMEXIT_MMIO_EMUL); 162 VMM_STAT_DECLARE(VMEXIT_UNKNOWN); 163 VMM_STAT_DECLARE(VMEXIT_ASTPENDING); 164 VMM_STAT_DECLARE(VMEXIT_EXCEPTION); 165 VMM_STAT_DECLARE(VMEXIT_REQIDLE); 166 VMM_STAT_DECLARE(VMEXIT_RUN_STATE); 167 #endif 168