linux-kernel - Re: [PATCH v1 3/3] arm64: dts: add Hi6220 mailbox node

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Date:	Wed, 26 Aug 2015 10:41:52 +0800
From:	Haojian Zhuang <haojian.zhuang@...aro.org>
To:	Leif Lindholm <leif.lindholm@...aro.org>
Cc:	Ard Biesheuvel <ard.biesheuvel@...aro.org>,
	Mark Rutland <mark.rutland@....com>,
	Dan Zhao <dan.zhao@...ilicon.com>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Will Deacon <Will.Deacon@....com>,
	Jian Zhang <zhangjian001@...ilicon.com>,
	Guangyue Zeng <zengguangyue@...ilicon.com>,
	Yiping Xu <xuyiping@...ilicon.com>,
	Jassi Brar <jassisinghbrar@...il.com>,
	Wei Xu <xuwei5@...ilicon.com>,
	Zhenwei Wang <Zhenwei.wang@...ilicon.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Bintian Wang <bintian.wang@...wei.com>,
	Pawel Moll <Pawel.Moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"kongfei@...ilicon.com" <kongfei@...ilicon.com>,
	Rob Herring <robh+dt@...nel.org>,
	Haoju Mo <mohaoju@...ilicon.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"guodong.xu@...aro.org" <guodong.xu@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"leo.yan@...aro.org" <leo.yan@...aro.org>
Subject: Re: [PATCH v1 3/3] arm64: dts: add Hi6220 mailbox node

On Tue, 2015-08-25 at 16:37 +0100, Leif Lindholm wrote:
> On Tue, Aug 25, 2015 at 04:51:22PM +0200, Ard Biesheuvel wrote:
> > >>    Arm kernel should either fetch memory information from
> > >>    efi or DT.
> > >
> > > Absolutely.
> > >
> > >>    Currently arm kernel fetch both efi memory information and
> > >>    reserved buffer from DTB at the same time.
> > >
> > > No, it does not.
> > 
> > It should not, but it does. Due to an oversight, the stub removes
> > /memreserve/ entries but ignores the reserved-memory node completely.
> 
> Urgh.
> 
> > This was reported here in fact
> > 
> > http://thread.gmane.org/gmane.linux.kernel.efi/5736/focus=5742
> > 
> > but there has not been a followup to this series.
> 
> Are all of those patches still relevant, or did some of them go in
> already?
> 
> Haojian: can you give that patch a spin and see if it does what you
> need, combined with adding the reserved areas to the UEFI memory map?
> 
> /
>     Leif

It's so nice. This patch is what I need.

Thanks
Haojian

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