Re: [RFC] [PATCH] Power Managed memory base enabling

KAMEZAWA Hiroyuki
2007-03-06T01:26:28Z

On Mon, 5 Mar 2007 10:18:26 -0800
Mark Gross <mgross@linux.intel.com> wrote:

> It implements a convention on the 4 bytes of "Proximity Domain ID"
> within the SRAT memory affinity structure as defined in ACPI3.0a. If
> bit 31 is set, then the memory range represented by that PXM is assumed
> to be power managed. We are working on defining a "standard" for
> identifying such memory areas as power manageable and progress committee
> based.
>

This usage of bit 31 surprized me ;)
I think some vendor(sgi?) now using 4byte pxm...
no problem ? and othre OSs will handle this ?

-Kame