diff options
Diffstat (limited to 'sys/amd64/vmm/vmm_stat.c')
-rw-r--r-- | sys/amd64/vmm/vmm_stat.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/sys/amd64/vmm/vmm_stat.c b/sys/amd64/vmm/vmm_stat.c new file mode 100644 index 0000000..e6f5c48 --- /dev/null +++ b/sys/amd64/vmm/vmm_stat.c @@ -0,0 +1,103 @@ +/*- + * Copyright (c) 2011 NetApp, Inc. + * 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 NETAPP, INC ``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 NETAPP, INC 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. + * + * $FreeBSD$ + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/systm.h> +#include <sys/malloc.h> + +#include <machine/vmm.h> +#include "vmm_stat.h" + +static int vstnum; +static struct vmm_stat_type *vsttab[MAX_VMM_STAT_TYPES]; + +static MALLOC_DEFINE(M_VMM_STAT, "vmm stat", "vmm stat"); + +void +vmm_stat_init(void *arg) +{ + struct vmm_stat_type *vst = arg; + + /* We require all stats to identify themselves with a description */ + if (vst->desc == NULL) + return; + + if (vstnum >= MAX_VMM_STAT_TYPES) { + printf("Cannot accomodate vmm stat type \"%s\"!\n", vst->desc); + return; + } + + vst->index = vstnum; + vsttab[vstnum++] = vst; +} + +int +vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf) +{ + int i; + uint64_t *stats; + + if (vcpu < 0 || vcpu >= VM_MAXCPU) + return (EINVAL); + + stats = vcpu_stats(vm, vcpu); + for (i = 0; i < vstnum; i++) + buf[i] = stats[i]; + *num_stats = vstnum; + return (0); +} + +void * +vmm_stat_alloc(void) +{ + u_long size; + + size = vstnum * sizeof(uint64_t); + + return (malloc(size, M_VMM_STAT, M_ZERO | M_WAITOK)); +} + +void +vmm_stat_free(void *vp) +{ + free(vp, M_VMM_STAT); +} + +const char * +vmm_stat_desc(int index) +{ + + if (index >= 0 && index < vstnum) + return (vsttab[index]->desc); + else + return (NULL); +} |