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 int index; /* position in the stats buffer */ 47 int nelems; /* standalone or array */ 48 const char *desc; /* description of statistic */ 49 enum vmm_stat_scope scope; 50 }; 51 52 void vmm_stat_init(void *arg); 53 54 #define VMM_STAT_DEFINE(type, nelems, desc, scope) \ 55 struct vmm_stat_type type[1] = { \ 56 { -1, nelems, desc, scope } \ 57 }; \ 58 SYSINIT(type##_stat, SI_SUB_KLD, SI_ORDER_ANY, vmm_stat_init, type) 59 60 #define VMM_STAT_DECLARE(type) \ 61 extern struct vmm_stat_type type[1] 62 63 #define VMM_STAT(type, desc) \ 64 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_ANY) 65 #define VMM_STAT_INTEL(type, desc) \ 66 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_INTEL) 67 #define VMM_STAT_AMD(type, desc) \ 68 VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_AMD) 69 70 #define VMM_STAT_ARRAY(type, nelems, desc) \ 71 VMM_STAT_DEFINE(type, nelems, desc, VMM_STAT_SCOPE_ANY) 72 73 void *vmm_stat_alloc(void); 74 void vmm_stat_free(void *vp); 75 76 /* 77 * 'buf' should be at least fit 'MAX_VMM_STAT_TYPES' entries 78 */ 79 int vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf); 80 int vmm_stat_desc_copy(int index, char *buf, int buflen); 81 82 static void __inline 83 vmm_stat_array_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, 84 int statidx, uint64_t x) 85 { 86 #ifdef VMM_KEEP_STATS 87 uint64_t *stats; 88 89 stats = vcpu_stats(vm, vcpu); 90 91 if (vst->index >= 0 && statidx < vst->nelems) 92 stats[vst->index + statidx] += x; 93 #endif 94 } 95 96 97 static void __inline 98 vmm_stat_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t x) 99 { 100 101 #ifdef VMM_KEEP_STATS 102 vmm_stat_array_incr(vm, vcpu, vst, 0, x); 103 #endif 104 } 105 106 VMM_STAT_DECLARE(VCPU_MIGRATIONS); 107 VMM_STAT_DECLARE(VMEXIT_COUNT); 108 VMM_STAT_DECLARE(VMEXIT_EXTINT); 109 VMM_STAT_DECLARE(VMEXIT_HLT); 110 VMM_STAT_DECLARE(VMEXIT_CR_ACCESS); 111 VMM_STAT_DECLARE(VMEXIT_RDMSR); 112 VMM_STAT_DECLARE(VMEXIT_WRMSR); 113 VMM_STAT_DECLARE(VMEXIT_MTRAP); 114 VMM_STAT_DECLARE(VMEXIT_PAUSE); 115 VMM_STAT_DECLARE(VMEXIT_INTR_WINDOW); 116 VMM_STAT_DECLARE(VMEXIT_NMI_WINDOW); 117 VMM_STAT_DECLARE(VMEXIT_INOUT); 118 VMM_STAT_DECLARE(VMEXIT_CPUID); 119 VMM_STAT_DECLARE(VMEXIT_EPT_FAULT); 120 VMM_STAT_DECLARE(VMEXIT_UNKNOWN); 121 VMM_STAT_DECLARE(VMEXIT_ASTPENDING); 122 VMM_STAT_DECLARE(VMEXIT_USERSPACE); 123 #endif 124