From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] arm: document "mach-virt" platform.
Date: Thu, 30 Jan 2014 18:28:59 +0100
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Cc: Ian Campbell <ian.campbell@citrix.com>, linux-kernel@vger.kernel.org,
        Mark Rutland <mark.rutland@arm.com>, devicetree@vger.kernel.org,
        Pawel Moll <pawel.moll@arm.com>,
        Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
        Marc Zyngier <marc.zyngier@arm.com>, Will Deacon <will.deacon@arm.com>,
        Rob Herring <robh+dt@kernel.org>, Kumar Gala <galak@codeaurora.org>,
        Olof Johansson <olof@lixom.net>
References: <1391098262-15944-1-git-send-email-ian.campbell@citrix.com>
In-Reply-To: <1391098262-15944-1-git-send-email-ian.campbell@citrix.com>
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Sender: linux-kernel-owner@vger.kernel.org

On Thursday 30 January 2014, Ian Campbell wrote:
> mach-virt has existed for a while but it is not written down what it actually
> consists of. Although it seems a bit unusual to document a binding for an
> entire platform since mach-virt is entirely virtual it is helpful to have
> something to refer to in the absence of a single concrete implementation.
> 
> I've done my best to capture the requirements based on the git log and my
> memory/understanding.
> 
> While here remove the xenvm dts example, the Xen tools will now build a
> suitable mach-virt compatible dts when launching the guest.

It might be worth noting in the changeset comment that the 'compatible'
string is actually no longer needed on newer kernels: All the members
of the machine descriptor are now the defaults (we should remove the
virt_init() function as well), and the fallback machine descriptor should
work just fine if any other string gets passed.

	Arnd
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