[pve-devel] [RFC qemu-server 1/1] partially fix #4501: migration: start vm: move port reservation and usage closer together

[Fiona Ebner]

Am 15.11.23 um 11:12 schrieb Wolfgang Bumiller:
>
> What about adding an option to `next_migrate_port()` to actually return
> the open socket to keep the reservation?
> 
> Also, did we consider passing the file descriptor through to qemu via
> `-incoming fd:$number`?
> 

Sounds promising :) We do invoke QEMU after forking. Is there any
pitfall with that and passing the fd? Or is it enough if we simply don't
touch it or close it in the parent?