Re: [PATCH v5 0/5] Add movablecore_map boot option

[Andrew Morton]

On Wed, 16 Jan 2013 15:25:44 +0900
Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx> wrote:

> >
> > Things I'm wondering:
> >
> > - is there *really* a case for retaining the boot option if/when
> >    SRAT support is available?
> 
> Yes. If SRAT support is available, all memory which enabled hotpluggable
> bit are managed by ZONEMOVABLE. But performance degradation may
> occur by NUMA because we can only allocate anonymous page and page-cache
> from these memory.
> 
> In this case, if user cannot change SRAT information, user needs a way to
> select/set removable memory manually.

If I understand this correctly you mean that once SRAT parsing is
implemented, the user can use movablecore_map to override that SRAT
parsing, yes?  That movablecore_map will take precedence over SRAT?

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