1 /*- 2 * Copyright (c) 2011 NetApp, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 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 vm *vm, int 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 /* 89 * 'buf' should be at least fit 'MAX_VMM_STAT_TYPES' entries 90 */ 91 int vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf); 92 int vmm_stat_desc_copy(int index, char *buf, int buflen); 93 94 static void __inline 95 vmm_stat_array_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, 96 int statidx, uint64_t x) 97 { 98 #ifdef VMM_KEEP_STATS 99 uint64_t *stats; 100 101 stats = vcpu_stats(vm, vcpu); 102 103 if (vst->index >= 0 && statidx < vst->nelems) 104 stats[vst->index + statidx] += x; 105 #endif 106 } 107 108 static void __inline 109 vmm_stat_array_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, 110 int statidx, uint64_t val) 111 { 112 #ifdef VMM_KEEP_STATS 113 uint64_t *stats; 114 115 stats = vcpu_stats(vm, vcpu); 116 117 if (vst->index >= 0 && statidx < vst->nelems) 118 stats[vst->index + statidx] = val; 119 #endif 120 } 121 122 static void __inline 123 vmm_stat_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t x) 124 { 125 126 #ifdef VMM_KEEP_STATS 127 vmm_stat_array_incr(vm, vcpu, vst, 0, x); 128 #endif 129 } 130 131 static void __inline 132 vmm_stat_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t val) 133 { 134 135 #ifdef VMM_KEEP_STATS 136 vmm_stat_array_set(vm, vcpu, vst, 0, val); 137 #endif 138 } 139 140 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 #endif 161