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