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Date: Fri, 17 Feb 2012 17:35:45 +0800
From: Wen Congyang <wency@cn.fujitsu.com>
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Subject: Re: [Qemu-devel] [RFC][PATCH 09/16 v6] introduce a new monitor
 command 'dump' to dump guest's memory
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To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Eric Blake <eblake@redhat.com>, HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>, Dave Anderson <anderson@redhat.com>, qemu-devel <qemu-devel@nongnu.org>, Luiz Capitulino <lcapitulino@redhat.com>

At 02/17/2012 05:26 PM, Jan Kiszka Wrote:
> On 2012-02-17 09:52, Wen Congyang wrote:
>>>> +static DumpState *dump_init(int fd, Error **errp)
>>>> +{
>>>> +    CPUState *env;
>>>> +    DumpState *s = dump_get_current();
>>>> +    int ret;
>>>> +
>>>> +    vm_stop(RUN_STATE_PAUSED);
>>>
>>> I would save the current vm state first and restore it when finished.
>>
>> There is no API to get current vm state. If you want this feature, I will
>> add API to get it.
> 
> You are looking for runstate_is_running().

Yes. vm_stop() stops the vcpu only when runstate_is_running(). So I think
you need to resume all vcpu after dumping is finished.

Thanks
Wen Congyang

> 
> Jan
>