> 在 2016年6月2日，03:44，Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk> 写道：
>
>> On 01/06/16 08:58, xiaoqiang zhao wrote:
>>
>> The previous commit e7c9136977cb99c6eb52c9139f7b8d8b5fa87db9
>> (hw/char: QOM'ify escc.c) cause qemu-system-ppc/ppc64
>> OpenBIOS to freeze on startup, this commit fix it.
>>
>> Signed-off-by: xiaoqiang zhao <zxq_yx_...@163.com>
>> ---
>> hw/char/escc.c | 12 +++++++-----
>> 1 file changed, 7 insertions(+), 5 deletions(-)
>>
>> diff --git a/hw/char/escc.c b/hw/char/escc.c
>> index 8e6a7df..31a5f90 100644
>> --- a/hw/char/escc.c
>> +++ b/hw/char/escc.c
>> @@ -989,18 +989,13 @@ static void escc_init1(Object *obj)
>> SysBusDevice *dev = SYS_BUS_DEVICE(obj);
>> unsigned int i;
>>
>> - s->chn[0].disabled = s->disabled;
>> - s->chn[1].disabled = s->disabled;
>> for (i = 0; i < 2; i++) {
>> sysbus_init_irq(dev, &s->chn[i].irq);
>> s->chn[i].chn = 1 - i;
>> - s->chn[i].clock = s->frequency / 2;
>> }
>> s->chn[0].otherchn = &s->chn[1];
>> s->chn[1].otherchn = &s->chn[0];
>>
>> - memory_region_init_io(&s->mmio, obj, &escc_mem_ops, s, "escc",
>> - ESCC_SIZE << s->it_shift);
>> sysbus_init_mmio(dev, &s->mmio);
>> }
>>
>> @@ -1009,8 +1004,15 @@ static void escc_realize(DeviceState *dev, Error
>> **errp)
>> ESCCState *s = ESCC(dev);
>> unsigned int i;
>>
>> + s->chn[0].disabled = s->disabled;
>> + s->chn[1].disabled = s->disabled;
>> +
>> + memory_region_init_io(&s->mmio, OBJECT(dev), &escc_mem_ops, s, "escc",
>> + ESCC_SIZE << s->it_shift);
>> +
>> for (i = 0; i < 2; i++) {
>> if (s->chn[i].chr) {
>> + s->chn[i].clock = s->frequency / 2;
>> qemu_chr_add_handlers(s->chn[i].chr, serial_can_receive,
>> serial_receive1, serial_event, &s->chn[i]);
>> }
>
> Thanks a lot for this patch, I can confirm that it fixes the problem
> under qemu-system-ppc for me:
>
> Tested-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
>
>
> ATB,
>
> Mark.
>
>
That's OK :-)
