linux-kernel - Re: [PATCH v2 0/5] Add movablecore

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Message-ID: <50B48D7C.3070706@zytor.com>
Date:	Tue, 27 Nov 2012 01:53:00 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Wen Congyang <wency@...fujitsu.com>
CC:	Tang Chen <tangchen@...fujitsu.com>, Bob Liu <lliubbo@...il.com>,
	akpm@...ux-foundation.org, rob@...dley.net,
	isimatu.yasuaki@...fujitsu.com, laijs@...fujitsu.com,
	linfeng@...fujitsu.com, jiang.liu@...wei.com, yinghai@...nel.org,
	kosaki.motohiro@...fujitsu.com, minchan.kim@...il.com,
	mgorman@...e.de, rientjes@...gle.com, rusty@...tcorp.com.au,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-doc@...r.kernel.org, "Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [PATCH v2 0/5] Add movablecore_map boot option

On 11/27/2012 01:47 AM, Wen Congyang wrote:
> At 11/27/2012 04:49 PM, H. Peter Anvin Wrote:
>> On 11/27/2012 12:29 AM, Tang Chen wrote:
>>> Another approach is like the following:
>>> movable_node = 1,3-5,8
>>> This could set all the memory on the nodes to be movable. And the rest
>>> of memory works as usual. But movablecore_map is more flexible.
>>
>> ... but *much* harder for users, so movable_node is better in most cases.
>
> But numa is initialized very later, and we need the information in SRAT...
>
> Thanks
> Wen Congyang
>

I think you need to deal with it for usability reasons, though...


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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