Re: [Qemu-devel] [PATCH 1/9] main-loop: use qemu_mutex_lock_iothread consistently

[Paolo Bonzini]

On 23/06/2015 15:49, Frederic Konrad wrote:
>>
>> Hopefully, multithreaded TCG will get rid of the whole logic to kick
>> VCPUs whenever an I/O event occurs!
> Hopefully :), this means dropping the iothread mutex as soon as possible
> and removing the iothread_requesting_mutex I guess..

Yes---running most of cpu_exec outside the BQL, like KVM.  io_read and
io_write would have to get and release the lock if necessary.

cpu_resume_from_signal also might have to release the lock.

Paolo