Re: [PATCH] Add support of NVDIMM memory error notification in ACPI 6.2

[Dan Williams]

On Thu, Jun 8, 2017 at 10:30 AM, Linda Knippers <linda.knippers@xxxxxxx> wrote:
[..]
> Wasn't Dan concerned about how the OS can know whether the FW supports
> that bit in the Start ARS?
>
> The Query ARS Capabilities DSM has a bit that tells the OS whether the
> platform supports the notification and the point of the notification was
> to tell the OS it could do a Start ARS with bit 1 set.  Of course, if
> you get the notification then that means the platform has the capability
> to deliver it, but it might not hurt to check the flag from the Query
> Capabilities bit.

Good point, yes, I think it is safe to assume that a BIOS that claims
to support un-correctable error notification also supports this Start
ARS flag.