Hi On Fri, Jul 17, 2015 at 2:57 PM, Paolo Bonzini <pbonz...@redhat.com> wrote: > LOG_FD is implemented in the kernel drivers/vhost/vhost.c. It seems to > be an eventfd-like mechanism to save on dirty bitmap scans. However, > it's not well documented how to implement it in a correct way.
and it's not used by qemu, so hard to say if it actually work well. > In any case, live migration needs a new message type (like LOG_MMAP_FD) > in the vhost-user protocol. Yes, perhaps with size and offset. I am looking at this. -- Marc-André Lureau
