104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
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/*-
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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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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``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 NETAPP, INC 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <machine/vmm.h>
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#include "vmm_stat.h"
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static int vstnum;
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static struct vmm_stat_type *vsttab[MAX_VMM_STAT_TYPES];
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static MALLOC_DEFINE(M_VMM_STAT, "vmm stat", "vmm stat");
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void
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vmm_stat_init(void *arg)
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{
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struct vmm_stat_type *vst = arg;
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/* We require all stats to identify themselves with a description */
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if (vst->desc == NULL)
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return;
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if (vstnum >= MAX_VMM_STAT_TYPES) {
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printf("Cannot accomodate vmm stat type \"%s\"!\n", vst->desc);
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return;
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}
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vst->index = vstnum;
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vsttab[vstnum++] = vst;
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}
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int
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vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf)
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{
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int i;
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uint64_t *stats;
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if (vcpu < 0 || vcpu >= VM_MAXCPU)
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return (EINVAL);
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stats = vcpu_stats(vm, vcpu);
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for (i = 0; i < vstnum; i++)
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buf[i] = stats[i];
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*num_stats = vstnum;
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return (0);
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}
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void *
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vmm_stat_alloc(void)
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{
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u_long size;
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size = vstnum * sizeof(uint64_t);
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return (malloc(size, M_VMM_STAT, M_ZERO | M_WAITOK));
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}
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void
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vmm_stat_free(void *vp)
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{
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free(vp, M_VMM_STAT);
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}
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const char *
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vmm_stat_desc(int index)
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{
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if (index >= 0 && index < vstnum)
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return (vsttab[index]->desc);
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else
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return (NULL);
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}
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