Dear technical team:

I hope this email finds you well.i am Gary huang from China.i am reaching out to you to seek guidance on some technical matters.

Here are some questions i would like to address:

In the virtio_pci.c file,a del_vq interface is provided for modern device which is call modern_del_queue.This function writes 0 to queue enable field in PCIe bar space. However£¬according to the virtio spec£¬this field is not supposed to be written by driver.Does this behavior violate the spec?Also£¬i haven't seen this function being called by higher level logic.what's the propose of this function£¿

I would greatly appreciate it if you could spare sometime to respond to my email.

Best regards,

Gary Huang