diff options
| -rw-r--r-- | hw/timer/mc146818rtc.c | 60 |
1 files changed, 31 insertions, 29 deletions
diff --git a/hw/timer/mc146818rtc.c b/hw/timer/mc146818rtc.c index f9d6181d58..542cd09bc1 100644 --- a/hw/timer/mc146818rtc.c +++ b/hw/timer/mc146818rtc.c @@ -125,17 +125,34 @@ static void rtc_coalesced_timer_update(RTCState *s) } } +static QLIST_HEAD(, RTCState) rtc_devices = + QLIST_HEAD_INITIALIZER(rtc_devices); + #ifdef TARGET_I386 +void qmp_rtc_reset_reinjection(Error **errp) +{ + RTCState *s; + + QLIST_FOREACH(s, &rtc_devices, link) { + s->irq_coalesced = 0; + } +} + +static bool rtc_policy_slew_deliver_irq(RTCState *s) +{ + apic_reset_irq_delivered(); + qemu_irq_raise(s->irq); + return apic_get_irq_delivered(); +} + static void rtc_coalesced_timer(void *opaque) { RTCState *s = opaque; if (s->irq_coalesced != 0) { - apic_reset_irq_delivered(); s->cmos_data[RTC_REG_C] |= 0xc0; DPRINTF_C("cmos: injecting from timer\n"); - qemu_irq_raise(s->irq); - if (apic_get_irq_delivered()) { + if (rtc_policy_slew_deliver_irq(s)) { s->irq_coalesced--; DPRINTF_C("cmos: coalesced irqs decreased to %d\n", s->irq_coalesced); @@ -144,6 +161,12 @@ static void rtc_coalesced_timer(void *opaque) rtc_coalesced_timer_update(s); } +#else +static bool rtc_policy_slew_deliver_irq(RTCState *s) +{ + assert(0); + return false; +} #endif static uint32_t rtc_periodic_clock_ticks(RTCState *s) @@ -254,21 +277,17 @@ static void rtc_periodic_timer(void *opaque) s->cmos_data[RTC_REG_C] |= REG_C_PF; if (s->cmos_data[RTC_REG_B] & REG_B_PIE) { s->cmos_data[RTC_REG_C] |= REG_C_IRQF; -#ifdef TARGET_I386 if (s->lost_tick_policy == LOST_TICK_POLICY_SLEW) { if (s->irq_reinject_on_ack_count >= RTC_REINJECT_ON_ACK_COUNT) - s->irq_reinject_on_ack_count = 0; - apic_reset_irq_delivered(); - qemu_irq_raise(s->irq); - if (!apic_get_irq_delivered()) { + s->irq_reinject_on_ack_count = 0; + if (!rtc_policy_slew_deliver_irq(s)) { s->irq_coalesced++; rtc_coalesced_timer_update(s); DPRINTF_C("cmos: coalesced irqs increased to %d\n", s->irq_coalesced); } } else -#endif - qemu_irq_raise(s->irq); + qemu_irq_raise(s->irq); } } @@ -612,20 +631,6 @@ static void rtc_get_time(RTCState *s, struct tm *tm) rtc_from_bcd(s, s->cmos_data[RTC_CENTURY]) * 100 - 1900; } -static QLIST_HEAD(, RTCState) rtc_devices = - QLIST_HEAD_INITIALIZER(rtc_devices); - -#ifdef TARGET_I386 -void qmp_rtc_reset_reinjection(Error **errp) -{ - RTCState *s; - - QLIST_FOREACH(s, &rtc_devices, link) { - s->irq_coalesced = 0; - } -} -#endif - static void rtc_set_time(RTCState *s) { struct tm tm; @@ -745,22 +750,19 @@ static uint64_t cmos_ioport_read(void *opaque, hwaddr addr, if (ret & (REG_C_UF | REG_C_AF)) { check_update_timer(s); } -#ifdef TARGET_I386 + if(s->irq_coalesced && (s->cmos_data[RTC_REG_B] & REG_B_PIE) && s->irq_reinject_on_ack_count < RTC_REINJECT_ON_ACK_COUNT) { s->irq_reinject_on_ack_count++; s->cmos_data[RTC_REG_C] |= REG_C_IRQF | REG_C_PF; - apic_reset_irq_delivered(); DPRINTF_C("cmos: injecting on ack\n"); - qemu_irq_raise(s->irq); - if (apic_get_irq_delivered()) { + if (rtc_policy_slew_deliver_irq(s)) { s->irq_coalesced--; DPRINTF_C("cmos: coalesced irqs decreased to %d\n", s->irq_coalesced); } } -#endif break; default: ret = s->cmos_data[s->cmos_index]; |