On Fri, 2023-12-08 at 12:36 +0100, David Hildenbrand wrote:
> On 07.12.23 05:36, Vishal Verma wrote:
[..]
> >
> > +
> > +What: /sys/bus/dax/devices/daxX.Y/memmap_on_memory
> > +Date: October, 2023
> > +KernelVersion: v6.8
> > +Contact: nvd...@lists.linux.dev
> > +Description:
> > + (RW) Control the memmap_on_memory setting if the dax device
> > + were to be hotplugged as system memory. This determines
> > whether
> > + the 'altmap' for the hotplugged memory will be placed on the
> > + device being hotplugged (memmap_on+memory=1) or if it will
> > be
> > + placed on regular memory (memmap_on_memory=0). This
> > attribute
> > + must be set before the device is handed over to the 'kmem'
> > + driver (i.e. hotplugged into system-ram).
> >
>
> Should we note the dependency on other factors as given in
> mhp_supports_memmap_on_memory(), especially, the system-wide setting and
> some weird kernel configurations?
>
Yep good idea, I'll make a note of those for v3.
