af28682757
Before memory is ready, this sample produces one VTd engine.
After memory and silicon is initialized, this sample produces
both IGD VTd engine and all-rest VTd engine by reinstall the
FV_INFO_PPI.
This update is to demonstrate how to support pre-mem VTd usage.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
(cherry picked from commit af807bb986)