In this doc:
"The DMA Protected Range (DPR) is a region of contiguous physical memory whose last byte is the byte before the start of TXT segment (TSEG), and which is protected from all DMA access. The DPR size is set and locked by BIOS. "
Where can I find information about DPR? Because it also says:
"The MLE itself may reside in the DPR as long as it does not conflict with either the SINIT or heap areas. If it does reside in the DPR then it need not be covered by the Intel VT-d Protected Memory Regions."
So naturally to make things simple on myself, I would like to not have to deal with VT-d, by just placing my MLE in the DPR. But that implies I know how to look up the range of DPR, and I have not been able to come up with anything based on googling. (Unless DPR is actually this "DMAR" I've seen other references to?)