Re: [Qemu-devel] [RFC PATCH 05/12] ppc4xx: Split off 4xx I2C emulation from ppc405_uc to its own file

[Peter Maydell <peter.maydell@linaro.org>]

On 14 August 2017 at 12:18, BALATON Zoltan <balaton@eik.bme.hu> wrote:
> On Mon, 14 Aug 2017, Paolo Bonzini wrote:
>> Can you move it to hw/i2c while you're at it?

> I could if that's the preferred way but I've left it in hw/ppc because this
> is not a generic device but specific to PPC SoCs and it was easier
> to work with files in one dir than scattered through the tree. Should I
> still move it to hw/i2c?

Yeah, when you have a device that's both "type X" and
"architecture Y" you can't put it both in hw/Y and hw/X,
and the choice we've made is that hw/$ARCH is for:
 * board models
 * SoC container objects which just instantiate other devices
and "leaf" devices go under the relevand hw/$CATEGORY
(which may be hw/misc if nothing more appropriate exists).
It's a little bit arbitrary, but it follows a similar practice
in the Linux kernel source tree layout.

thanks
-- PMM