1*7c8c0b82SPatrick Mooney /*- 2*7c8c0b82SPatrick Mooney * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3*7c8c0b82SPatrick Mooney * 4*7c8c0b82SPatrick Mooney * Copyright (c) 2011 NetApp, Inc. 5*7c8c0b82SPatrick Mooney * All rights reserved. 6*7c8c0b82SPatrick Mooney * 7*7c8c0b82SPatrick Mooney * Redistribution and use in source and binary forms, with or without 8*7c8c0b82SPatrick Mooney * modification, are permitted provided that the following conditions 9*7c8c0b82SPatrick Mooney * are met: 10*7c8c0b82SPatrick Mooney * 1. Redistributions of source code must retain the above copyright 11*7c8c0b82SPatrick Mooney * notice, this list of conditions and the following disclaimer. 12*7c8c0b82SPatrick Mooney * 2. Redistributions in binary form must reproduce the above copyright 13*7c8c0b82SPatrick Mooney * notice, this list of conditions and the following disclaimer in the 14*7c8c0b82SPatrick Mooney * documentation and/or other materials provided with the distribution. 15*7c8c0b82SPatrick Mooney * 16*7c8c0b82SPatrick Mooney * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 17*7c8c0b82SPatrick Mooney * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18*7c8c0b82SPatrick Mooney * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19*7c8c0b82SPatrick Mooney * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 20*7c8c0b82SPatrick Mooney * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21*7c8c0b82SPatrick Mooney * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22*7c8c0b82SPatrick Mooney * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23*7c8c0b82SPatrick Mooney * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24*7c8c0b82SPatrick Mooney * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25*7c8c0b82SPatrick Mooney * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26*7c8c0b82SPatrick Mooney * SUCH DAMAGE. 27*7c8c0b82SPatrick Mooney * 28*7c8c0b82SPatrick Mooney * $FreeBSD$ 29*7c8c0b82SPatrick Mooney */ 30*7c8c0b82SPatrick Mooney 31*7c8c0b82SPatrick Mooney #include <sys/cdefs.h> 32*7c8c0b82SPatrick Mooney __FBSDID("$FreeBSD$"); 33*7c8c0b82SPatrick Mooney 34*7c8c0b82SPatrick Mooney #include <sys/param.h> 35*7c8c0b82SPatrick Mooney #include <sys/kernel.h> 36*7c8c0b82SPatrick Mooney #include <sys/systm.h> 37*7c8c0b82SPatrick Mooney #include <sys/malloc.h> 38*7c8c0b82SPatrick Mooney 39*7c8c0b82SPatrick Mooney #include <machine/vmm.h> 40*7c8c0b82SPatrick Mooney #include "vmm_util.h" 41*7c8c0b82SPatrick Mooney #include "vmm_stat.h" 42*7c8c0b82SPatrick Mooney 43*7c8c0b82SPatrick Mooney /* 44*7c8c0b82SPatrick Mooney * 'vst_num_elems' is the total number of addressable statistic elements 45*7c8c0b82SPatrick Mooney * 'vst_num_types' is the number of unique statistic types 46*7c8c0b82SPatrick Mooney * 47*7c8c0b82SPatrick Mooney * It is always true that 'vst_num_elems' is greater than or equal to 48*7c8c0b82SPatrick Mooney * 'vst_num_types'. This is because a stat type may represent more than 49*7c8c0b82SPatrick Mooney * one element (for e.g. VMM_STAT_ARRAY). 50*7c8c0b82SPatrick Mooney */ 51*7c8c0b82SPatrick Mooney static int vst_num_elems, vst_num_types; 52*7c8c0b82SPatrick Mooney static struct vmm_stat_type *vsttab[MAX_VMM_STAT_ELEMS]; 53*7c8c0b82SPatrick Mooney 54*7c8c0b82SPatrick Mooney static MALLOC_DEFINE(M_VMM_STAT, "vmm stat", "vmm stat"); 55*7c8c0b82SPatrick Mooney 56*7c8c0b82SPatrick Mooney #define vst_size ((size_t)vst_num_elems * sizeof (uint64_t)) 57*7c8c0b82SPatrick Mooney 58*7c8c0b82SPatrick Mooney void 59*7c8c0b82SPatrick Mooney vmm_stat_register(void *arg) 60*7c8c0b82SPatrick Mooney { 61*7c8c0b82SPatrick Mooney struct vmm_stat_type *vst = arg; 62*7c8c0b82SPatrick Mooney 63*7c8c0b82SPatrick Mooney /* We require all stats to identify themselves with a description */ 64*7c8c0b82SPatrick Mooney if (vst->desc == NULL) 65*7c8c0b82SPatrick Mooney return; 66*7c8c0b82SPatrick Mooney 67*7c8c0b82SPatrick Mooney if (vst->scope == VMM_STAT_SCOPE_INTEL && !vmm_is_intel()) 68*7c8c0b82SPatrick Mooney return; 69*7c8c0b82SPatrick Mooney 70*7c8c0b82SPatrick Mooney if (vst->scope == VMM_STAT_SCOPE_AMD && !vmm_is_svm()) 71*7c8c0b82SPatrick Mooney return; 72*7c8c0b82SPatrick Mooney 73*7c8c0b82SPatrick Mooney if (vst_num_elems + vst->nelems >= MAX_VMM_STAT_ELEMS) { 74*7c8c0b82SPatrick Mooney printf("Cannot accommodate vmm stat type \"%s\"!\n", vst->desc); 75*7c8c0b82SPatrick Mooney return; 76*7c8c0b82SPatrick Mooney } 77*7c8c0b82SPatrick Mooney 78*7c8c0b82SPatrick Mooney vst->index = vst_num_elems; 79*7c8c0b82SPatrick Mooney vst_num_elems += vst->nelems; 80*7c8c0b82SPatrick Mooney 81*7c8c0b82SPatrick Mooney vsttab[vst_num_types++] = vst; 82*7c8c0b82SPatrick Mooney } 83*7c8c0b82SPatrick Mooney 84*7c8c0b82SPatrick Mooney int 85*7c8c0b82SPatrick Mooney vmm_stat_copy(struct vm *vm, int vcpu, int *num_stats, uint64_t *buf) 86*7c8c0b82SPatrick Mooney { 87*7c8c0b82SPatrick Mooney struct vmm_stat_type *vst; 88*7c8c0b82SPatrick Mooney uint64_t *stats; 89*7c8c0b82SPatrick Mooney int i; 90*7c8c0b82SPatrick Mooney 91*7c8c0b82SPatrick Mooney if (vcpu < 0 || vcpu >= vm_get_maxcpus(vm)) 92*7c8c0b82SPatrick Mooney return (EINVAL); 93*7c8c0b82SPatrick Mooney 94*7c8c0b82SPatrick Mooney /* Let stats functions update their counters */ 95*7c8c0b82SPatrick Mooney for (i = 0; i < vst_num_types; i++) { 96*7c8c0b82SPatrick Mooney vst = vsttab[i]; 97*7c8c0b82SPatrick Mooney if (vst->func != NULL) 98*7c8c0b82SPatrick Mooney (*vst->func)(vm, vcpu, vst); 99*7c8c0b82SPatrick Mooney } 100*7c8c0b82SPatrick Mooney 101*7c8c0b82SPatrick Mooney /* Copy over the stats */ 102*7c8c0b82SPatrick Mooney stats = vcpu_stats(vm, vcpu); 103*7c8c0b82SPatrick Mooney for (i = 0; i < vst_num_elems; i++) 104*7c8c0b82SPatrick Mooney buf[i] = stats[i]; 105*7c8c0b82SPatrick Mooney *num_stats = vst_num_elems; 106*7c8c0b82SPatrick Mooney return (0); 107*7c8c0b82SPatrick Mooney } 108*7c8c0b82SPatrick Mooney 109*7c8c0b82SPatrick Mooney void * 110*7c8c0b82SPatrick Mooney vmm_stat_alloc(void) 111*7c8c0b82SPatrick Mooney { 112*7c8c0b82SPatrick Mooney 113*7c8c0b82SPatrick Mooney return (malloc(vst_size, M_VMM_STAT, M_WAITOK)); 114*7c8c0b82SPatrick Mooney } 115*7c8c0b82SPatrick Mooney 116*7c8c0b82SPatrick Mooney void 117*7c8c0b82SPatrick Mooney vmm_stat_init(void *vp) 118*7c8c0b82SPatrick Mooney { 119*7c8c0b82SPatrick Mooney 120*7c8c0b82SPatrick Mooney bzero(vp, vst_size); 121*7c8c0b82SPatrick Mooney } 122*7c8c0b82SPatrick Mooney 123*7c8c0b82SPatrick Mooney void 124*7c8c0b82SPatrick Mooney vmm_stat_free(void *vp) 125*7c8c0b82SPatrick Mooney { 126*7c8c0b82SPatrick Mooney free(vp, M_VMM_STAT); 127*7c8c0b82SPatrick Mooney } 128*7c8c0b82SPatrick Mooney 129*7c8c0b82SPatrick Mooney int 130*7c8c0b82SPatrick Mooney vmm_stat_desc_copy(int index, char *buf, int bufsize) 131*7c8c0b82SPatrick Mooney { 132*7c8c0b82SPatrick Mooney int i; 133*7c8c0b82SPatrick Mooney struct vmm_stat_type *vst; 134*7c8c0b82SPatrick Mooney 135*7c8c0b82SPatrick Mooney for (i = 0; i < vst_num_types; i++) { 136*7c8c0b82SPatrick Mooney vst = vsttab[i]; 137*7c8c0b82SPatrick Mooney if (index >= vst->index && index < vst->index + vst->nelems) { 138*7c8c0b82SPatrick Mooney if (vst->nelems > 1) { 139*7c8c0b82SPatrick Mooney snprintf(buf, bufsize, "%s[%d]", 140*7c8c0b82SPatrick Mooney vst->desc, index - vst->index); 141*7c8c0b82SPatrick Mooney } else { 142*7c8c0b82SPatrick Mooney strlcpy(buf, vst->desc, bufsize); 143*7c8c0b82SPatrick Mooney } 144*7c8c0b82SPatrick Mooney return (0); /* found it */ 145*7c8c0b82SPatrick Mooney } 146*7c8c0b82SPatrick Mooney } 147*7c8c0b82SPatrick Mooney 148*7c8c0b82SPatrick Mooney return (EINVAL); 149*7c8c0b82SPatrick Mooney } 150*7c8c0b82SPatrick Mooney 151*7c8c0b82SPatrick Mooney /* global statistics */ 152*7c8c0b82SPatrick Mooney VMM_STAT(VCPU_MIGRATIONS, "vcpu migration across host cpus"); 153*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_COUNT, "total number of vm exits"); 154*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_EXTINT, "vm exits due to external interrupt"); 155*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_HLT, "number of times hlt was intercepted"); 156*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_CR_ACCESS, "number of times %cr access was intercepted"); 157*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_RDMSR, "number of times rdmsr was intercepted"); 158*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_WRMSR, "number of times wrmsr was intercepted"); 159*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_MTRAP, "number of monitor trap exits"); 160*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_PAUSE, "number of times pause was intercepted"); 161*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_INTR_WINDOW, "vm exits due to interrupt window opening"); 162*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_NMI_WINDOW, "vm exits due to nmi window opening"); 163*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_INOUT, "number of times in/out was intercepted"); 164*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_CPUID, "number of times cpuid was intercepted"); 165*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_NESTED_FAULT, "vm exits due to nested page fault"); 166*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_MMIO_EMUL, "vm exits for mmio emulation"); 167*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_UNKNOWN, "number of vm exits for unknown reason"); 168*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_ASTPENDING, "number of times astpending at exit"); 169*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_REQIDLE, "number of times idle requested at exit"); 170*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_EXCEPTION, "number of vm exits due to exceptions"); 171*7c8c0b82SPatrick Mooney VMM_STAT(VMEXIT_RUN_STATE, "number of vm exits due to run_state change"); 172