Re: [PATCH v2 1/2] x86/acpi: add retrieval function for rsdp address

[Andy Shevchenko]

On Thu, Feb 1, 2018 at 9:57 AM, Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:
> On Wed, Jan 31, 2018 at 4:43 PM, Andy Shevchenko
> <andy.shevchenko@xxxxxxxxx> wrote:
>> On Mon, Jan 29, 2018 at 5:02 AM, Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:
>>> On Sun, Jan 28, 2018 at 4:04 PM, Andy Shevchenko
>>> <andy.shevchenko@xxxxxxxxx> wrote:

>> Instead of declaring function as __weak, establish a new struct for
>> ACPI related stubs and incorporate it into x86_init.
>>
>> That is my proposal. I think I would go this way in my case where I
>> need to treat differently ACPI HW reduced initialization of legacy
>> devices.
>
> IOW you'd like to have a set of ACPI init callbacks that could be
> defined by an arch, right?

Correct!

And since there is another potential user (Xen) for this approach I
consider it a good chance to be chosen.
Though I have no idea if Xen can do things differently.

-- 
With Best Regards,
Andy Shevchenko