Re: [PATCH v2 0/5] Allocate memmap from hotadded memory

Michal Hocko
2019-07-31T12:09:03Z

On Tue 02-07-19 18:52:01, Rashmica Gupta wrote:
[...]
> > 2) Why it was designed, what is the goal of the interface?
> > 3) When it is supposed to be used?
> >
> >
> There is a hardware debugging facility (htm) on some power chips. To use
> this you need a contiguous portion of memory for the output to be dumped
> to - and we obviously don't want this memory to be simultaneously used by
> the kernel.

How much memory are we talking about here? Just curious.
--
Michal Hocko
SUSE Labs