| vmm_stat.c (248935) | vmm_stat.c (250427) |
|---|---|
| 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 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 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 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/sys/amd64/vmm/vmm_stat.c 248935 2013-03-30 17:46:03Z neel $ | 26 * $FreeBSD: head/sys/amd64/vmm/vmm_stat.c 250427 2013-05-10 02:59:49Z neel $ |
| 27 */ 28 29#include <sys/cdefs.h> | 27 */ 28 29#include <sys/cdefs.h> |
| 30__FBSDID("$FreeBSD: head/sys/amd64/vmm/vmm_stat.c 248935 2013-03-30 17:46:03Z neel $"); | 30__FBSDID("$FreeBSD: head/sys/amd64/vmm/vmm_stat.c 250427 2013-05-10 02:59:49Z neel $"); |
| 31 32#include <sys/param.h> 33#include <sys/kernel.h> 34#include <sys/systm.h> 35#include <sys/malloc.h> 36#include <sys/smp.h> 37 38#include <machine/vmm.h> 39#include "vmm_util.h" 40#include "vmm_stat.h" 41 | 31 32#include <sys/param.h> 33#include <sys/kernel.h> 34#include <sys/systm.h> 35#include <sys/malloc.h> 36#include <sys/smp.h> 37 38#include <machine/vmm.h> 39#include "vmm_util.h" 40#include "vmm_stat.h" 41 |
| 42static int vstnum; 43static struct vmm_stat_type *vsttab[MAX_VMM_STAT_TYPES]; | 42/* 43 * 'vst_num_elems' is the total number of addressable statistic elements 44 * 'vst_num_types' is the number of unique statistic types 45 * 46 * It is always true that 'vst_num_elems' is greater than or equal to 47 * 'vst_num_types'. This is because a stat type may represent more than 48 * one element (for e.g. VMM_STAT_ARRAY). 49 */ 50static int vst_num_elems, vst_num_types; 51static struct vmm_stat_type *vsttab[MAX_VMM_STAT_ELEMS]; |
| 44 45static MALLOC_DEFINE(M_VMM_STAT, "vmm stat", "vmm stat"); 46 47void 48vmm_stat_init(void *arg) 49{ 50 struct vmm_stat_type *vst = arg; 51 52 /* We require all stats to identify themselves with a description */ 53 if (vst->desc == NULL) 54 return; 55 56 if (vst->scope == VMM_STAT_SCOPE_INTEL && !vmm_is_intel()) 57 return; 58 59 if (vst->scope == VMM_STAT_SCOPE_AMD && !vmm_is_amd()) 60 return; 61 | 52 53static MALLOC_DEFINE(M_VMM_STAT, "vmm stat", "vmm stat"); 54 55void 56vmm_stat_init(void *arg) 57{ 58 struct vmm_stat_type *vst = arg; 59 60 /* We require all stats to identify themselves with a description */ 61 if (vst->desc == NULL) 62 return; 63 64 if (vst->scope == VMM_STAT_SCOPE_INTEL && !vmm_is_intel()) 65 return; 66 67 if (vst->scope == VMM_STAT_SCOPE_AMD && !vmm_is_amd()) 68 return; 69 |
| 62 if (vstnum >= MAX_VMM_STAT_TYPES) { | 70 if (vst_num_elems + vst->nelems >= MAX_VMM_STAT_ELEMS) { |
| 63 printf("Cannot accomodate vmm stat type \"%s\"!\n", vst->desc); 64 return; 65 } 66 | 71 printf("Cannot accomodate vmm stat type \"%s\"!\n", vst->desc); 72 return; 73 } 74 |
| 67 vst->index = vstnum; 68 vsttab[vstnum++] = vst; | 75 vst->index = vst_num_elems; 76 vst_num_elems += vst->nelems; 77 78 vsttab[vst_num_types++] = vst; |
| 69} 70 71int 72vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf) 73{ 74 int i; 75 uint64_t *stats; 76 77 if (vcpu < 0 || vcpu >= VM_MAXCPU) 78 return (EINVAL); 79 80 stats = vcpu_stats(vm, vcpu); | 79} 80 81int 82vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf) 83{ 84 int i; 85 uint64_t *stats; 86 87 if (vcpu < 0 || vcpu >= VM_MAXCPU) 88 return (EINVAL); 89 90 stats = vcpu_stats(vm, vcpu); |
| 81 for (i = 0; i < vstnum; i++) | 91 for (i = 0; i < vst_num_elems; i++) |
| 82 buf[i] = stats[i]; | 92 buf[i] = stats[i]; |
| 83 *num_stats = vstnum; | 93 *num_stats = vst_num_elems; |
| 84 return (0); 85} 86 87void * 88vmm_stat_alloc(void) 89{ 90 u_long size; 91 | 94 return (0); 95} 96 97void * 98vmm_stat_alloc(void) 99{ 100 u_long size; 101 |
| 92 size = vstnum * sizeof(uint64_t); | 102 size = vst_num_elems * sizeof(uint64_t); |
| 93 94 return (malloc(size, M_VMM_STAT, M_ZERO | M_WAITOK)); 95} 96 97void 98vmm_stat_free(void *vp) 99{ 100 free(vp, M_VMM_STAT); 101} 102 | 103 104 return (malloc(size, M_VMM_STAT, M_ZERO | M_WAITOK)); 105} 106 107void 108vmm_stat_free(void *vp) 109{ 110 free(vp, M_VMM_STAT); 111} 112 |
| 103const char * 104vmm_stat_desc(int index) | 113int 114vmm_stat_desc_copy(int index, char *buf, int bufsize) |
| 105{ | 115{ |
| 116 int i; 117 struct vmm_stat_type *vst; |
|
| 106 | 118 |
| 107 if (index >= 0 && index < vstnum) 108 return (vsttab[index]->desc); 109 else 110 return (NULL); | 119 for (i = 0; i < vst_num_types; i++) { 120 vst = vsttab[i]; 121 if (index >= vst->index && index < vst->index + vst->nelems) { 122 if (vst->nelems > 1) { 123 snprintf(buf, bufsize, "%s[%d]", 124 vst->desc, index - vst->index); 125 } else { 126 strlcpy(buf, vst->desc, bufsize); 127 } 128 return (0); /* found it */ 129 } 130 } 131 132 return (EINVAL); |
| 111} 112 113/* global statistics */ 114VMM_STAT(VCPU_MIGRATIONS, "vcpu migration across host cpus"); 115VMM_STAT(VMEXIT_COUNT, "total number of vm exits"); 116VMM_STAT(VMEXIT_EXTINT, "vm exits due to external interrupt"); 117VMM_STAT(VMEXIT_HLT, "number of times hlt was intercepted"); 118VMM_STAT(VMEXIT_CR_ACCESS, "number of times %cr access was intercepted"); --- 12 unchanged lines hidden --- | 133} 134 135/* global statistics */ 136VMM_STAT(VCPU_MIGRATIONS, "vcpu migration across host cpus"); 137VMM_STAT(VMEXIT_COUNT, "total number of vm exits"); 138VMM_STAT(VMEXIT_EXTINT, "vm exits due to external interrupt"); 139VMM_STAT(VMEXIT_HLT, "number of times hlt was intercepted"); 140VMM_STAT(VMEXIT_CR_ACCESS, "number of times %cr access was intercepted"); --- 12 unchanged lines hidden --- |