Re: [PATCH] memory: add kernelcore_max_addr boot option

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On Fri, 11 May 2012 13:46:04 +0800
Lai Jiangshan <laijs@xxxxxxxxxxxxxx> wrote:

> Current ZONE_MOVABLE (kernelcore=) setting policy with boot option doesn't meet
> our requirement. We need something like kernelcore_max_addr= boot option
> to limit the kernelcore upper address.

Why do you need this?  Please fully describe the requirement/use case.

> The memory with higher address will be migratable(movable) and they
> are easier to be offline(always ready to be offline when the system don't require
> so much memory).
> 
> All kernelcore_max_addr=, kernelcore= and movablecore= can be safely specified
> at the same time(or any 2 of them).

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