linux-kernel - Re: [PATCH v5 0/5] Add movablecore

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Message-ID: <50F85ED5.3010003@jp.fujitsu.com>
Date:	Thu, 17 Jan 2013 15:28:05 -0500
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	tony.luck@...el.com
CC:	hpa@...or.com, isimatu.yasuaki@...fujitsu.com,
	akpm@...ux-foundation.org, tangchen@...fujitsu.com,
	jiang.liu@...wei.com, wujianguo@...wei.com, wency@...fujitsu.com,
	laijs@...fujitsu.com, linfeng@...fujitsu.com, yinghai@...nel.org,
	rob@...dley.net, kosaki.motohiro@...fujitsu.com,
	minchan.kim@...il.com, mgorman@...e.de, rientjes@...gle.com,
	guz.fnst@...fujitsu.com, rusty@...tcorp.com.au, lliubbo@...il.com,
	jaegeuk.hanse@...il.com, glommer@...allels.com,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v5 0/5] Add movablecore_map boot option

On 1/17/2013 11:30 AM, Luck, Tony wrote:
>> 2. If the user *does* care which nodes are movable, then the user needs 
>> to be able to specify that *in a way that makes sense to the user*. 
>> This may mean involving the DMI information as well as SRAT in order to 
>> get "silk screen" type information out.
> 
> One reason they might care would be which I/O devices are connected
> to each node.  DMI might be a good way to get an invariant name for the
> node, but they might also want to specify in terms of what they actually
> want. E.g. "eth0 and eth4 are a redundant bonded pair of NICs - don't
> mark both these nodes as removable".  Though this is almost certainly not
> a job for kernel options, but for some user configuration tool that would
> spit out the DMI names.

I agree DMI parsing should be done in userland if we really need DMI parsing.


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