fbbd9655e5
Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
162 lines
4.9 KiB
C
162 lines
4.9 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _VMM_STAT_H_
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#define _VMM_STAT_H_
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struct vm;
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#define MAX_VMM_STAT_ELEMS 64 /* arbitrary */
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enum vmm_stat_scope {
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VMM_STAT_SCOPE_ANY,
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VMM_STAT_SCOPE_INTEL, /* Intel VMX specific statistic */
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VMM_STAT_SCOPE_AMD, /* AMD SVM specific statistic */
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};
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struct vmm_stat_type;
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typedef void (*vmm_stat_func_t)(struct vm *vm, int vcpu,
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struct vmm_stat_type *stat);
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struct vmm_stat_type {
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int index; /* position in the stats buffer */
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int nelems; /* standalone or array */
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const char *desc; /* description of statistic */
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vmm_stat_func_t func;
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enum vmm_stat_scope scope;
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};
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void vmm_stat_register(void *arg);
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#define VMM_STAT_FDEFINE(type, nelems, desc, func, scope) \
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struct vmm_stat_type type[1] = { \
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{ -1, nelems, desc, func, scope } \
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}; \
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SYSINIT(type##_stat, SI_SUB_KLD, SI_ORDER_ANY, vmm_stat_register, type)
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#define VMM_STAT_DEFINE(type, nelems, desc, scope) \
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VMM_STAT_FDEFINE(type, nelems, desc, NULL, scope)
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#define VMM_STAT_DECLARE(type) \
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extern struct vmm_stat_type type[1]
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#define VMM_STAT(type, desc) \
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VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_ANY)
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#define VMM_STAT_INTEL(type, desc) \
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VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_INTEL)
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#define VMM_STAT_AMD(type, desc) \
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VMM_STAT_DEFINE(type, 1, desc, VMM_STAT_SCOPE_AMD)
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#define VMM_STAT_FUNC(type, desc, func) \
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VMM_STAT_FDEFINE(type, 1, desc, func, VMM_STAT_SCOPE_ANY)
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#define VMM_STAT_ARRAY(type, nelems, desc) \
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VMM_STAT_DEFINE(type, nelems, desc, VMM_STAT_SCOPE_ANY)
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void *vmm_stat_alloc(void);
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void vmm_stat_init(void *vp);
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void vmm_stat_free(void *vp);
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/*
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* 'buf' should be at least fit 'MAX_VMM_STAT_TYPES' entries
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*/
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int vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf);
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int vmm_stat_desc_copy(int index, char *buf, int buflen);
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static void __inline
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vmm_stat_array_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst,
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int statidx, uint64_t x)
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{
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#ifdef VMM_KEEP_STATS
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uint64_t *stats;
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stats = vcpu_stats(vm, vcpu);
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if (vst->index >= 0 && statidx < vst->nelems)
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stats[vst->index + statidx] += x;
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#endif
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}
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static void __inline
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vmm_stat_array_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst,
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int statidx, uint64_t val)
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{
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#ifdef VMM_KEEP_STATS
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uint64_t *stats;
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stats = vcpu_stats(vm, vcpu);
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if (vst->index >= 0 && statidx < vst->nelems)
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stats[vst->index + statidx] = val;
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#endif
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}
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static void __inline
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vmm_stat_incr(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t x)
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{
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#ifdef VMM_KEEP_STATS
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vmm_stat_array_incr(vm, vcpu, vst, 0, x);
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#endif
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}
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static void __inline
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vmm_stat_set(struct vm *vm, int vcpu, struct vmm_stat_type *vst, uint64_t val)
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{
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#ifdef VMM_KEEP_STATS
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vmm_stat_array_set(vm, vcpu, vst, 0, val);
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#endif
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}
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VMM_STAT_DECLARE(VCPU_MIGRATIONS);
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VMM_STAT_DECLARE(VMEXIT_COUNT);
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VMM_STAT_DECLARE(VMEXIT_EXTINT);
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VMM_STAT_DECLARE(VMEXIT_HLT);
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VMM_STAT_DECLARE(VMEXIT_CR_ACCESS);
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VMM_STAT_DECLARE(VMEXIT_RDMSR);
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VMM_STAT_DECLARE(VMEXIT_WRMSR);
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VMM_STAT_DECLARE(VMEXIT_MTRAP);
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VMM_STAT_DECLARE(VMEXIT_PAUSE);
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VMM_STAT_DECLARE(VMEXIT_INTR_WINDOW);
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VMM_STAT_DECLARE(VMEXIT_NMI_WINDOW);
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VMM_STAT_DECLARE(VMEXIT_INOUT);
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VMM_STAT_DECLARE(VMEXIT_CPUID);
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VMM_STAT_DECLARE(VMEXIT_NESTED_FAULT);
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VMM_STAT_DECLARE(VMEXIT_INST_EMUL);
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VMM_STAT_DECLARE(VMEXIT_UNKNOWN);
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VMM_STAT_DECLARE(VMEXIT_ASTPENDING);
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VMM_STAT_DECLARE(VMEXIT_USERSPACE);
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VMM_STAT_DECLARE(VMEXIT_RENDEZVOUS);
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VMM_STAT_DECLARE(VMEXIT_EXCEPTION);
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VMM_STAT_DECLARE(VMEXIT_REQIDLE);
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#endif
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