On Thu, Nov 02, 2017 at 12:19:00PM +1100, Alexey Kardashevskiy wrote: > On 28/10/17 19:25, Paolo Bonzini wrote: > > On 28/10/2017 08:57, Alexey Kardashevskiy wrote: > >> On 27/10/17 18:12, Jeff Cody wrote: > >>> VHDX does not support migration (VMDK fails the same way). > >> > >> Probably a very ignorant question but how can an image format not support > >> migration at all? Is not it simple writing blocks, one-by-one? Thanks. > > > > VHDX does not implement bdrv_invalidate_cache. If you add that > > callback, it can support migration. > > > I could give it a try but is there a demand for it really? >
I don't think there is much demand for it, which is why we use the migration-blocker for it still. VHDX is a compatibility format, and as such I don't imagine many people using it as a primary format during runtime.
