Re: [PATCH 0/7] ACPI HMAT memory sysfs representation

[Dan Williams]

On Fri, Nov 23, 2018 at 11:21 AM Dave Hansen <dave.hansen@xxxxxxxxx> wrote:
>
> On 11/22/18 10:42 PM, Anshuman Khandual wrote:
> > Are we willing to go in the direction for inclusion of a new system
> > call, subset of it appears on sysfs etc ? My primary concern is not
> > how the attribute information appears on the sysfs but lack of it's
> > completeness.
>
> A new system call makes total sense to me.  I have the same concern
> about the completeness of what's exposed in sysfs, I just don't see a
> _route_ to completeness with sysfs itself.  Thus, the minimalist
> approach as a first step.

Outside of platform-firmware-id to Linux-numa-node-id what other
userspace API infrastructure does the kernel need to provide? It seems
userspace enumeration of memory attributes is fully enabled once the
firmware-to-Linux identification is established.