Message ID | 1434699936-4433-7-git-send-email-pbonzini@redhat.com |
---|---|
State | New |
Headers | show |
diff --git a/hw/timer/i8254.c b/hw/timer/i8254.c index 3450c98..9b65a33 100644 --- a/hw/timer/i8254.c +++ b/hw/timer/i8254.c @@ -196,6 +196,12 @@ static uint64_t pit_ioport_read(void *opaque, hwaddr addr, PITChannelState *s; addr &= 3; + + if (addr == 3) { + /* Mode/Command register is write only, read is ignored */ + return 0; + } + s = &pit->channels[addr]; if (s->status_latched) { s->status_latched = 0;