[RFC 0/8] Copy Offload with Peer-to-Peer PCI Memory

Stephen Bates sbates at raithlin.com
Tue Apr 25 14:23:31 PDT 2017


> My first reflex when reading this thread was to think that this whole domain
> lends it self excellently to testing via Qemu. Could it be that doing this in 
> the opposite direction might be a safer approach in the long run even though 
> (significant) more work up-front?

While the idea of QEMU for this work is attractive it will be a long time before QEMU is in a position to support this development. 

Another approach is to propose a common development platform for p2pmem work using a platform we know is going to work. This an extreme version of the whitelisting approach that was discussed on this thread. We can list a very specific set of hardware (motherboard, PCIe end-points and (possibly) PCIe switch enclosure) that has been shown to work that others can copy for their development purposes.

p2pmem.io perhaps ;-)?

Stephen




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