Hi Alistair,

On 17/05/2019 23:01, Alistair Francis wrote:
On Fri, May 17, 2019 at 1:46 AM Julien Grall <julien.gr...@arm.com> wrote:



On 16/05/2019 20:30, Alistair Francis wrote:
On Thu, May 16, 2019 at 3:32 AM Jan Beulich <jbeul...@suse.com> wrote:

On 16.05.19 at 02:02, <alistair.fran...@wdc.com> wrote:
Make the asm/vpl011.h dependent on the ARM architecture.

But we only have x86 and Arm right now. A word more about
your motivation would help.

As the code currently is no one can add another architecture. This is
just a general fixup as assuming Xen will only ever support two archs
seems strange.

At which point, wouldn't it be better to avoid #ifdef ARCH in common code?
Instead, we could provide arch helper and/or more meaning CONFIG name.

I'm not sure if the arch helpers are any easier to understand. Maybe
that is worth looking into, at the moment though I still think it
makes sense to fix this #ifdef.

Well, I don't think we would want an #elseif defined(CONFIG_NEW_ARCH) for adding your new architecture specific include. This is defeating the purpose of common code.

In this case, the code using the header is protected by CONFIG_SBSA_VUART_CONSOLE. So I would use that instead of CONFIG_ARM.

Cheers,

--
Julien Grall

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