> > > > But ,I would like understand one more thing. > > In the following mail, it seems that e820 bus will be used for fake DAX. > > > > https://lists.01.org/pipermail/linux-nvdimm/2018-January/013926.html > > > > Could you tell me what is relationship between "fake DAX" in this mail > > and Guest DAX? > > Why e820 is necessary for this case? > > > > It was proposed as a starting template for writing a new nvdimm bus > driver. All we need is a way to communicate both the address range and > the flush interface. This could be done with a new SPA Range GUID with > the NFIT, or a custom virtio-pci device that registers a special > nvdimm region with this property. My preference is whichever approach > minimizes the code duplication, because the pmem driver should be > re-used as much as possible.
Ok, I see. Thank you very much for your explanation. Bye, --- Yasunori Goto
