[libvirt] How does libvirt access kvm infomation?

[Akio Takebe]

Hi, Chris

Chris Lalancette wrote:
> Akio Takebe wrote:
>   
>> Hi,
>>
>> AFAIK kvm has only an interface of qemu console when we use device
>> hotplug, migration and so on. How does libvirt access the interface
>> of qemu console?
>>     
>
> As far as I understand it (from looking at the code recently), you can tell the
> qemu monitor to open against a pty.  libvirtd does this, and holds on to the
> other end of the pty, and then issues commands through the PTY to do anything
> that you need through the monitor interface.
>
> Look at src/qemu_driver.c:qemudWaitForMonitor() (or thereabouts) for where this
> is setup while starting a domain.
>   
Thank you for your information.
I understand it. I'll ckeck around the codes.

Best Regards,

Akio Takebe