vfio/migration: Add a note about migration rate limiting
commitff64e0ba817d79968bffa88d205397abf05cc6e8
authorAvihai Horon <avihaih@nvidia.com>
Mon, 4 Mar 2024 10:53:39 +0000 (4 12:53 +0200)
committerPeter Xu <peterx@redhat.com>
Mon, 11 Mar 2024 18:41:40 +0000 (11 14:41 -0400)
treec45d9cc30a4b564170f365fc643db848b0b9d08b
parent3f6ed59ec400a58646e766a323f7f8047f044b98
vfio/migration: Add a note about migration rate limiting

VFIO migration buffer size is currently limited to 1MB. Therefore, there
is no need to check if migration rate exceeded, as in the worst case it
will exceed by only 1MB.

However, if the buffer size is later changed to a bigger value,
vfio_save_iterate() should enforce migration rate (similar to migration
RAM code).

Add a note about this in vfio_save_iterate() to serve as a reminder.

Suggested-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240304105339.20713-4-avihaih@nvidia.com
Signed-off-by: Peter Xu <peterx@redhat.com>
hw/vfio/migration.c