On 3/14/22 08:13, Oscar Salvador wrote: > On Mon, Mar 14, 2022 at 09:03:59AM +0800, Huang, Ying wrote: >> Oscar Salvador <osalvador@xxxxxxx> writes: >> On host machine, PMEM is always exposed via memory hotplug. But later >> on, we found that for guest system it's possible for PMEM to be exposed >> as normal memory. > Could you please elaborate on that? How is it done? I would love to hear the > details. Qemu, for instance, has a "mem-path" argument. It's typically used for using hugetlbfs as guest memory. But, there's nothing stopping you from pointing it to a DAX device or a file on a DAX filesystem that's backed by pmem.
