sync vdpa with upstream
Hi All:
This series tries to sync vDPA with upstream. Please review.
Brew Build:https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=49959035
Upstream Status: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2158700
Test status: Tested by me
Signed-off-by: Cindy Lu lulu@redhat.com
Edited by Cindy Lu