linux-kernel - Re: [PATCH] arm: document "mach-virt" platform.

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Date:	Thu, 30 Jan 2014 18:28:59 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Ian Campbell <ian.campbell@...rix.com>,
	linux-kernel@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org, Pawel Moll <pawel.moll@....com>,
	Stefano Stabellini <stefano.stabellini@...citrix.com>,
	Marc Zyngier <marc.zyngier@....com>,
	Will Deacon <will.deacon@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Kumar Gala <galak@...eaurora.org>,
	Olof Johansson <olof@...om.net>
Subject: Re: [PATCH] arm: document "mach-virt" platform.

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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