Re: [PATCH mlx5-next 2/7] vfio: Add an API to check migration state transition validity

[Jason Gunthorpe]

On Tue, Sep 28, 2021 at 01:19:58PM -0600, Alex Williamson wrote:

> In defining the device state, we tried to steer away from defining it
> in terms of the QEMU migration API, but rather as a set of controls
> that could be used to support that API to leave us some degree of
> independence that QEMU implementation might evolve.

That is certainly a different perspective, it would have been
better to not express this idea as a FSM in that case...

So each state in mlx5vf_pci_set_device_state() should call the correct
combination of (un)freeze, (un)quiesce and so on so each state
reflects a defined operation of the device?

Jason