qemu no-shutdown behavior in libvirt

[Peter Krempa]

On Mon, Nov 30, 2020 at 15:49:06 +0000, Luna Xu Yamada wrote:

Firstly, please don't use HTML-only mails on this mailing list.

> <div class="socmaildefaultfont" dir="ltr" style="font-family:Arial, Helvetica, sans-serif;font-size:10pt" ><div dir="ltr" >Hi libvirt maintainers,</div>
> <div dir="ltr" > </div>
> <div dir="ltr" >Thank you for maintaining such a great tool. I'm new to this area and I have a question when using libvirt with qemu. </div>
> <div dir="ltr" > </div>
> <div dir="ltr" >When I start a VM with qemu process I can specify -no-shutdown flag so that my qemu process is not shutdown even if I shutdown the VM from the inside (issue shutdown or halt command inside VM). The reason I want to do this is I can continue my jobs for example backup (drive-backup) after VM gets shutdown by the user, and I'm able to check the status of the job through qmp commands. I'm moving to libvirt from qemu to manage my VM, and I'm struggling with how to do the same thing through virsh. I'm able to pass the -no-shutdown flag into qemu but it behaves differently in virsh when I shutdown the VM. Much appreciated if someone could give me a hint.</div>

What you want to achieve would be the equivalent if the
<on_poweroff>pause</on_poweroff> option existed. Unfortunately it does
not exist, and thus it's not possible to achieve what you want.

You are welcome to implement the feature and/or submit an issue in the
issue tracker with a justification of how it would be useful. Note that
submitting the issue doesn't necessarily guarantee that anybody will
pick up the work though.