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sys/arm64/vmm/vmm_stat.h
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| /* | |||||
| * Copyright (C) 2015 Mihai Carabas <mihai.carabas@gmail.com> | |||||
| * All rights reserved. | |||||
| * | |||||
| * Redistribution and use in source and binary forms, with or without | |||||
| * modification, are permitted provided that the following conditions | |||||
| * are met: | |||||
| * 1. Redistributions of source code must retain the above copyright | |||||
| * notice, this list of conditions and the following disclaimer. | |||||
| * 2. Redistributions in binary form must reproduce the above copyright | |||||
| * notice, this list of conditions and the following disclaimer in the | |||||
| * documentation and/or other materials provided with the distribution. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
| * SUCH DAMAGE. | |||||
| */ | |||||
| #ifndef _VMM_STAT_H_ | |||||
| #define _VMM_STAT_H_ | |||||
| struct vm; | |||||
| #define MAX_VMM_STAT_ELEMS 64 /* arbitrary */ | |||||
| enum vmm_stat_scope { | |||||
| VMM_STAT_SCOPE_ANY, | |||||
| VMM_STAT_SCOPE_INTEL, /* Intel VMX specific statistic */ | |||||
| VMM_STAT_SCOPE_AMD, /* AMD SVM specific statistic */ | |||||
| }; | |||||
| struct vmm_stat_type; | |||||
| typedef void (*vmm_stat_func_t)(struct vm *vm, int vcpu, | |||||
| struct vmm_stat_type *stat); | |||||
| struct vmm_stat_type { | |||||
| int index; /* position in the stats buffer */ | |||||
| int nelems; /* standalone or array */ | |||||
| const char *desc; /* description of statistic */ | |||||
| vmm_stat_func_t func; | |||||
| enum vmm_stat_scope scope; | |||||
| }; | |||||
| void vmm_stat_register(void *arg); | |||||
| #define VMM_STAT_FDEFINE(type, nelems, desc, func, scope) \ | |||||
| struct vmm_stat_type type[1] = { \ | |||||
| { -1, nelems, desc, func, scope } \ | |||||
| }; \ | |||||
| SYSINIT(type##_stat, SI_SUB_KLD, SI_ORDER_ANY, vmm_stat_register, type) | |||||
| #define VMM_STAT_DEFINE(type, nelems, desc, scope) \ | |||||
| VMM_STAT_FDEFINE(type, nelems, desc, NULL, scope) | |||||
| #define VMM_STAT_DECLARE(type) \ | |||||
| extern struct vmm_stat_type type[1] | |||||
| #define VMM_STAT(type, desc) \ | |||||
| VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_ANY) | |||||
| #define VMM_STAT_INTEL(type, desc) \ | |||||
| VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_INTEL) | |||||
| #define VMM_STAT_AMD(type, desc) \ | |||||
| VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_AMD) | |||||
| #define VMM_STAT_FUNC(type, desc, func) \ | |||||
| VMM_STAT_FDEFINE(type, 1, desc, func, VMM_STAT_SCOPE_ANY) | |||||
| #define VMM_STAT_ARRAY(type, nelems, desc) \ | |||||
| VMM_STAT_DEFINE(type, nelems, desc, VMM_STAT_SCOPE_ANY) | |||||
| void *vmm_stat_alloc(void); | |||||
| void vmm_stat_init(void *vp); | |||||
| void vmm_stat_free(void *vp); | |||||
| /* | |||||
| * 'buf' should be at least fit 'MAX_VMM_STAT_TYPES' entries | |||||
| */ | |||||
| int vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf); | |||||
| int vmm_stat_desc_copy(int index, char *buf, int buflen); | |||||
| static void __inline | |||||
| vmm_stat_array_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, | |||||
| int statidx, uint64_t x) | |||||
| { | |||||
| #ifdef VMM_KEEP_STATS | |||||
| uint64_t *stats; | |||||
| stats = vcpu_stats(vm, vcpu); | |||||
| if (vst->index >= 0 && statidx < vst->nelems) | |||||
| stats[vst->index + statidx] += x; | |||||
| #endif | |||||
| } | |||||
| static void __inline | |||||
| vmm_stat_array_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, | |||||
| int statidx, uint64_t val) | |||||
| { | |||||
| #ifdef VMM_KEEP_STATS | |||||
| uint64_t *stats; | |||||
| stats = vcpu_stats(vm, vcpu); | |||||
| if (vst->index >= 0 && statidx < vst->nelems) | |||||
| stats[vst->index + statidx] = val; | |||||
| #endif | |||||
| } | |||||
| static void __inline | |||||
| vmm_stat_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t x) | |||||
| { | |||||
| #ifdef VMM_KEEP_STATS | |||||
| vmm_stat_array_incr(vm, vcpu, vst, 0, x); | |||||
| #endif | |||||
| } | |||||
| static void __inline | |||||
| vmm_stat_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t val) | |||||
| { | |||||
| #ifdef VMM_KEEP_STATS | |||||
| vmm_stat_array_set(vm, vcpu, vst, 0, val); | |||||
| #endif | |||||
| } | |||||
| VMM_STAT_DECLARE(VCPU_MIGRATIONS); | |||||
| VMM_STAT_DECLARE(VMEXIT_COUNT); | |||||
| VMM_STAT_DECLARE(VMEXIT_EXTINT); | |||||
| VMM_STAT_DECLARE(VMEXIT_HLT); | |||||
| VMM_STAT_DECLARE(VMEXIT_CR_ACCESS); | |||||
| VMM_STAT_DECLARE(VMEXIT_RDMSR); | |||||
| VMM_STAT_DECLARE(VMEXIT_WRMSR); | |||||
| VMM_STAT_DECLARE(VMEXIT_MTRAP); | |||||
| VMM_STAT_DECLARE(VMEXIT_PAUSE); | |||||
| VMM_STAT_DECLARE(VMEXIT_INTR_WINDOW); | |||||
| VMM_STAT_DECLARE(VMEXIT_NMI_WINDOW); | |||||
| VMM_STAT_DECLARE(VMEXIT_INOUT); | |||||
| VMM_STAT_DECLARE(VMEXIT_CPUID); | |||||
| VMM_STAT_DECLARE(VMEXIT_NESTED_FAULT); | |||||
| VMM_STAT_DECLARE(VMEXIT_INST_EMUL); | |||||
| VMM_STAT_DECLARE(VMEXIT_UNKNOWN); | |||||
| VMM_STAT_DECLARE(VMEXIT_ASTPENDING); | |||||
| VMM_STAT_DECLARE(VMEXIT_USERSPACE); | |||||
| VMM_STAT_DECLARE(VMEXIT_RENDEZVOUS); | |||||
| VMM_STAT_DECLARE(VMEXIT_EXCEPTION); | |||||
| #endif | |||||