sync vdpa code from upstream
JIRA: https://issues.redhat.com/browse/RHEL-66590
UPSTREAM status: merged
Tested by me
Signed-off-by: Houqi (Nick) Zuo hzuo@redhat.com
Edited by Houqi Zuo
JIRA: https://issues.redhat.com/browse/RHEL-66590
UPSTREAM status: merged
Tested by me
Signed-off-by: Houqi (Nick) Zuo hzuo@redhat.com