From: Arnd Bergmann <arnd@arndb.de>
To: Chris Metcalf <cmetcalf@tilera.com>
Subject: Re: [PATCH 7/7] [v4] drivers/virt: introduce Freescale hypervisor management driver
Date: Fri, 10 Jun 2011 17:36:14 +0200
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Cc: linuxppc-dev@lists.ozlabs.org,
        Linux Virtualization <virtualization@lists.linux-foundation.org>,
        Randy Dunlap <randy.dunlap@oracle.com>,
        Timur Tabi <timur@freescale.com>, konrad.wilk@oracle.com,
        kumar.gala@freescale.com, linux-kernel@vger.kernel.org,
        akpm@kernel.org, dsaxena@linaro.org, linux-console@vger.kernel.org,
        greg@kroah.com, alan@lxorguk.ukuu.org.uk
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On Friday 10 June 2011, Chris Metcalf wrote:
> This still leaves open the question of what really should go in this new
> directory. Is it just for drivers that manage/control the hypervisor?  Or
> is it also for drivers that just use the hypervisor to do I/O of some kind,
> but aren't related to any other "family" of drivers, i.e., a driver that
> would have been dumped in drivers/char or drivers/misc in the old days?
> 
> My specific interest at the moment is the proposed tile-srom.c driver
> (https://patchwork.kernel.org/patch/843892/), which uses a simple
> hypervisor read/write API to access the portion of the SPI ROM used to hold
> the boot stream for a TILE processor.

I'd still put that driver in drivers/char for now, because it already contains
similar drivers. We can probaby group them in a subdirectory of drivers/char
at some point or move them out to a new directory.

For your raw hcall passthrough driver, that would be something that should
go into drivers/virt/ IMHO.

	Arnd
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