Re: [Xen-devel] [PATCHv6] 01/28] build: import Kbuild/Kconfig from Linux 4.2

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 01.12.15 at 21:04, <cardoe@xxxxxxxxxx> wrote:
> On 11/30/15 11:19 AM, Ian Campbell wrote:
>> On Mon, 2015-11-30 at 11:00 -0600, Doug Goldstein wrote:
>>> Since there is a request to have KEXEC and the UARTs
>>> configurable by the user
>> 
>> Who asked for this?
>> 
>> I have quite a strong preference for not adding _any_ new[*] user
>> configurable options in this first pass, since I think those need to be
>> considered quite carefully whereas this first series should be largely
>> about the mechanics of introducing Kconfig files.
>> 
>> Ian.
>> 
>> [*] i.e. anything which is not already controllable by the current .config
>> driven thing.
>> 
> 
> The ARM UARTs are the take away I had from conversations with Julien
> Grall and reading past comments on the ML how people can change the ARM
> UARTs. Obviously if that's not desired I can drop that. I originally had
> them enabled as they are in config/arm{32,64}.mk and changed them to be
> user configurable later in the series.
> 
> As far as KEXEC goes, its a user configurable option now in Rules.mk.
> You can build "make kexec=n" and it will disable it. I chose that one as
> an original example in v1 of how a user configurable option would look
> in this scheme.

And note how Ian said "_any_ new".

In fact as a follow-up we should convert other command line driven
overrides to config options (debug, perfc, bigmem, shadow) imo.

Jan


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