RE: [PATCH v3 2/2] mm: Introduce kernelcore=mirror option

["Izumi, Taku" <izumi.taku@jp.fujitsu.com>]

Dear Xishi,

 Sorry for late.

> -----Original Message-----
> From: Xishi Qiu [mailto:qiuxishi@huawei.com]
> Sent: Friday, December 11, 2015 6:44 PM
> To: Izumi, Taku/泉 拓
> Cc: Luck, Tony; linux-kernel@vger.kernel.org; linux-mm@kvack.org; akpm@linux-foundation.org; Kamezawa, Hiroyuki/亀澤 寛
> 之; mel@csn.ul.ie; Hansen, Dave; matt@codeblueprint.co.uk
> Subject: Re: [PATCH v3 2/2] mm: Introduce kernelcore=mirror option
> 
> On 2015/12/11 13:53, Izumi, Taku wrote:
> 
> > Dear Xishi,
> >
> >> Hi Taku,
> >>
> >> Whether it is possible that we rewrite the fallback function in buddy system
> >> when zone_movable and mirrored_kernelcore are both enabled?
> >
> >   What does "when zone_movable and mirrored_kernelcore are both enabled?" mean ?
> >
> >   My patchset just provides a new way to create ZONE_MOVABLE.
> >
> 
> Hi Taku,
> 
> I mean when zone_movable is from kernelcore=mirror, not kernelcore=nn[KMG].

  I'm not quite sure what you are saying, but if you want to screen user memory
  so that one is allocated from mirrored zone and another is from non-mirrored zone,
  I think it is possible to reuse my patchset.

  Sincerely,
  Taku Izumi

> Thanks,
> Xishi Qiu
> 
> >   Sincerely,
> >   Taku Izumi
> >>
> >> It seems something like that we add a new zone but the name is zone_movable,
> >> not zone_mirror. And the prerequisite is that we won't enable these two
> >> features(movable memory and mirrored memory) at the same time. Thus we can
> >> reuse the code of movable zone.
> >>
> >
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> >
> 
> 

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