/* Reconfigure and restart event timers after configuration changes. */
static void
cpu_restartclocks(void)
{
/* Stop all event timers. */
timertest = 0;
if (timer1hz) {
timer1hz = 0;
configtimer(0);
}
if (timer[1] && timer2hz) {
timer2hz = 0;
configtimer(1);
}
/* Calculate new event timers parameters. */
if (timer[1] == NULL) {
timer1hz = hz * singlemul;
while (timer1hz < (profiling_on ? profhz : stathz))
timer1hz += hz;
timer2hz = 0;
} else {
timer1hz = hz;
timer2hz = profiling_on ? profhz : stathz;
timer2hz = round_freq(timer[1], timer2hz);
}
timer1hz = round_freq(timer[0], timer1hz);
printf("Starting kernel event timers: %s @ %dHz, %s @ %dHz\n",
timer[0]->et_name, timer1hz,
timer[1] ? timer[1]->et_name : "NONE", timer2hz);
/* Restart event timers. */
FREQ2BT(timer1hz, &timerperiod[0]);
configtimer(0);
if (timer[1]) {
timerticks[0] = 0;
timerticks[1] = 0;
FREQ2BT(timer2hz, &timerperiod[1]);
configtimer(1);
timertest = 1;
}
}
struct vpmtmr *
vpmtmr_init(struct vm *vm)
{
struct vpmtmr *vpmtmr;
struct bintime bt;
vpmtmr = malloc(sizeof(struct vpmtmr), M_VPMTMR, M_WAITOK | M_ZERO);
vpmtmr->baseuptime = sbinuptime();
vpmtmr->baseval = 0;
FREQ2BT(PMTMR_FREQ, &bt);
vpmtmr->freq_sbt = bttosbt(bt);
return (vpmtmr);
}
struct vpmtmr *
vpmtmr_init(UNUSED struct vm *vm)
{
struct vpmtmr *vpmtmr;
struct bintime bt;
vpmtmr = malloc(sizeof(struct vpmtmr));
assert(vpmtmr);
bzero(vpmtmr, sizeof(struct vpmtmr));
vpmtmr->baseuptime = sbinuptime();
vpmtmr->baseval = 0;
FREQ2BT(PMTMR_FREQ, &bt);
vpmtmr->freq_sbt = bttosbt(bt);
return (vpmtmr);
}
