Re: Question on skip_emulated_instructions()

[Avi Kivity <avi@redhat.com>]

On 04/08/2010 12:14 PM, Yoshiaki Tamura wrote:
>> I don't think you can in the general case. But if you gate output at the
>> device level, instead of the instruction level, the problem goes 
>> away, no?
>
> Yes, it should.
> To implement this, we need to make No.3 to be called asynchronously.  
> If qemu is already handling I/O asynchronously, it would be relatively 
> easy to make this.

Yes, you can release the I/O from the iothread instead of the vcpu 
thread.  You can make virtio_net_handle_tx() disable virtio 
notifications and initiate state sync and return, when state sync 
continues you can call the original virtio_net_handle_tx().  If the 
secondary takes over, it needs to call the original 
virtio_net_handle_tx() as well.

-- 
error compiling committee.c: too many arguments to function