Date: Tue, 25 Aug 2015 16:37:54 +0100
From: Leif Lindholm <leif.lindholm@linaro.org>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>,
        Mark Rutland <mark.rutland@arm.com>, Dan Zhao <dan.zhao@hisilicon.com>,
        Catalin Marinas <Catalin.Marinas@arm.com>,
        Will Deacon <Will.Deacon@arm.com>,
        Jian Zhang <zhangjian001@hisilicon.com>,
        Guangyue Zeng <zengguangyue@hisilicon.com>,
        Yiping Xu <xuyiping@hisilicon.com>,
        Jassi Brar <jassisinghbrar@gmail.com>, Wei Xu <xuwei5@hisilicon.com>,
        Zhenwei Wang <Zhenwei.wang@hisilicon.com>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        Bintian Wang <bintian.wang@huawei.com>,
        Pawel Moll <Pawel.Moll@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>,
        "kongfei@hisilicon.com" <kongfei@hisilicon.com>,
        Rob Herring <robh+dt@kernel.org>, Haoju Mo <mohaoju@hisilicon.com>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        "guodong.xu@linaro.org" <guodong.xu@linaro.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "leo.yan@linaro.org" <leo.yan@linaro.org>
Subject: Re: [PATCH v1 3/3] arm64: dts: add Hi6220 mailbox node
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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
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