Re: Enabling peer to peer device transactions for PCIe devices

Serguei Sagalovitch
2016-11-25T17:20:47Z

> A white list may end up being rather complicated if it has to cover
> different CPU generations and system architectures. I feel this is a
> decision user space could easily make.
>
> Logan
I agreed that it is better to leave up to user space to check what is
working
and what is not. I found that write is practically always working but
read very
often not. Also sometimes system BIOS update could fix the issue.