Re: [PATCH v4 10/25] migration: Add Error** argument to qemu_savevm_state_setup()

[Cédric Le Goater]

[ ...]

> Now VFIO allows a migration to happen without this trick.  I'm wondering
> whether all relevant NICs can also support VFIO migrations in the future,
> then we can drop this tricky feature for good.

Currently, VFIO migration requires a VFIO (PCI) variant driver implementing
the specific ops for migration. Only a few NICs are supported. It's growing
though and we should expect more in the future, specially entreprise grade
NICs.

Thanks,

C.