/* This function is called when the watchdog expires. Note that
* the hardware has two timers, and so expiry happens in two stages.
* If d->stage == 1 then we perform the first stage action (usually,
* sending an interrupt) and then restart the timer again for the
* second stage. If the second stage expires then the watchdog
* really has run out.
*/
static void i6300esb_timer_expired(void *vp)
{
I6300State *d = vp;
i6300esb_debug("stage %d\n", d->stage);
if (d->stage == 1) {
/* What to do at the end of stage 1? */
switch (d->int_type) {
case INT_TYPE_IRQ:
fprintf(stderr, "i6300esb_timer_expired: I would send APIC 1 INT 10 here if I knew how (XXX)\n");
break;
case INT_TYPE_SMI:
fprintf(stderr, "i6300esb_timer_expired: I would send SMI here if I knew how (XXX)\n");
break;
}
/* Start the second stage. */
i6300esb_restart_timer(d, 2);
} else {
/* Second stage expired, reboot for real. */
if (d->reboot_enabled) {
d->previous_reboot_flag = 1;
watchdog_perform_action(); /* This reboots, exits, etc */
i6300esb_reset(&d->dev.qdev);
}
/* In "free running mode" we start stage 1 again. */
if (d->free_run)
i6300esb_restart_timer(d, 1);
}
}
static void tco_timer_expired(void *opaque)
{
TCOIORegs *tr = opaque;
ICH9LPCPMRegs *pm = container_of(tr, ICH9LPCPMRegs, tco_regs);
ICH9LPCState *lpc = container_of(pm, ICH9LPCState, pm);
uint32_t gcs = pci_get_long(lpc->chip_config + ICH9_CC_GCS);
tr->tco.rld = 0;
tr->tco.sts1 |= TCO_TIMEOUT;
if (++tr->timeouts_no == 2) {
tr->tco.sts2 |= TCO_SECOND_TO_STS;
tr->tco.sts2 |= TCO_BOOT_STS;
tr->timeouts_no = 0;
if (!lpc->pin_strap.spkr_hi && !(gcs & ICH9_CC_GCS_NO_REBOOT)) {
watchdog_perform_action();
tco_timer_stop(tr);
return;
}
}
if (pm->smi_en & ICH9_PMIO_SMI_EN_TCO_EN) {
ich9_generate_smi();
} else {
ich9_generate_nmi();
}
tr->tco.rld = tr->tco.tmr;
tco_timer_reload(tr);
}
static void aspeed_wdt_timer_expired(void *dev)
{
AspeedWDTState *s = ASPEED_WDT(dev);
qemu_log_mask(CPU_LOG_RESET, "Watchdog timer expired.\n");
watchdog_perform_action();
timer_del(s->timer);
}
/* This is called when the watchdog expires. */
static void ib700_timer_expired(void *vp)
{
IB700State *s = vp;
ib700_debug("watchdog expired\n");
watchdog_perform_action();
qemu_del_timer(s->timer);
}
static void diag288_timer_expired(void *dev)
{
qemu_log_mask(CPU_LOG_RESET, "Watchdog timer expired.\n");
watchdog_perform_action();
/* Reset the watchdog only if the guest was notified about expiry. */
switch (get_watchdog_action()) {
case WDT_DEBUG:
case WDT_NONE:
case WDT_PAUSE:
return;
}
wdt_diag288_reset(dev);
}
static void diag288_timer_expired(void *dev)
{
qemu_log_mask(CPU_LOG_RESET, "Watchdog timer expired.\n");
watchdog_perform_action();
wdt_diag288_reset(dev);
}