diff options
Diffstat (limited to 'hw/intc/apic_common.c')
-rw-r--r-- | hw/intc/apic_common.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/hw/intc/apic_common.c b/hw/intc/apic_common.c index dc07034..81addd6 100644 --- a/hw/intc/apic_common.c +++ b/hw/intc/apic_common.c @@ -189,6 +189,25 @@ bool apic_next_timer(APICCommonState *s, int64_t current_time) return true; } +uint32_t apic_get_current_count(APICCommonState *s) +{ + int64_t d; + uint32_t val; + d = (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - s->initial_count_load_time) >> + s->count_shift; + if (s->lvt[APIC_LVT_TIMER] & APIC_LVT_TIMER_PERIODIC) { + /* periodic */ + val = s->initial_count - (d % ((uint64_t)s->initial_count + 1)); + } else { + if (d >= s->initial_count) { + val = 0; + } else { + val = s->initial_count - d; + } + } + return val; +} + void apic_init_reset(DeviceState *dev) { APICCommonState *s; |