Implement namespace in black box mode about femu HOT 1 CLOSED

Thank you Jongin for your great work :)

According to Nvme Spec 2.0, new structure called NVMe subsystem contains endurance group and endurance group can have multiple NVM Sets (and NVM Sets can have multiple namespaces)
We are currently working on upgrading FEMU aligned with NVMe Spec 2.0 including all subsystem features.

For your question, I think it is better to implement attach/detach concept for the future FEMU.
Qemu recently update NVMe spec v2.0 in their main line and I'm also looking into it.

For attaching ns, you may want to look 'name_ns_attachment' in qemu
(https://github.com/qemu/qemu/blob/master/hw/nvme/ctrl.c#L6358)

For reporting regards to NVM SET, you may want to look endurance group reporting 'nvme_endgrp_info'
(https://github.com/qemu/qemu/blob/master/hw/nvme/ctrl.c#L4775)

Thank you for your contribution and hope this information helps you.

from femu.