[libvirt] How does libvirt access kvm infomation?

Akio Takebe takebe_akio at jp.fujitsu.com
Thu Jun 19 07:28:04 UTC 2008

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

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