[pve-devel] [PATCH qemu-server 0/2] set write threshold logic

[Joao Sousa]

On 8/4/25 10:14 AM, Fiona Ebner wrote:
> blockdev_add()/Blockdev::attach() are only called for hot-plugged disks,
> not disks already present at start-up time. You either need to set the
> threshold as part of the blockdev options in the generate_*_blockdev()
> functions (if that is possible, would be preferred) or issue the QMP
> commands for the initially present disks right after VM start (in
> vm_start_nolock(), we already do something similar for ballooning).

AFAIK the write threshold cannot be set when the blockdev is created, at 
least for now. As you suggested, I was able to loop over every volume in 
vm_start_lock() and the threshold is being set correctly.

Thanks!

Best regards,

Tiago