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Re: [Xen-devel] [PATCH 4/6] arm: add a small kconfig for Renesas RCar H3

On 19/04/18 10:06, Andrew Cooper wrote:
> On 18/04/2018 23:15, Stefano Stabellini wrote:
>>  xen/arch/arm/configs/renesas.config | 80 
>> +++++++++++++++++++++++++++++++++++++
>>  1 file changed, 80 insertions(+)
>>  create mode 100644 xen/arch/arm/configs/renesas.config
>> diff --git a/xen/arch/arm/configs/renesas.config 
>> b/xen/arch/arm/configs/renesas.config
>> new file mode 100644
>> index 0000000..7ad3f1c
>> --- /dev/null
>> +++ b/xen/arch/arm/configs/renesas.config
>> @@ -0,0 +1,80 @@
>> +#
>> +# Automatically generated file; DO NOT EDIT.
>> +# Xen/arm 4.11-unstable Configuration
>> +#
> This is now the second Kconfig file we've got added into the tree.  As
> with the PV-shim config, keeping it up to date is going to be a little
> tricky.
> I think we either need a script to keep all of the embedded configs up
> to date, or switch to a model (similar to the travis randconfig target)
> where it becomes a `make defaultconfig` with certain specific options
> forced one way or another (similar to `make {tiny,kvm,xen}config` in
> Linux).  The latter means that we only store the specific delta
> applicable for purpose, and it will probably change less frequently.

I think the easiest way would be to have a config file with only the
required non-default options being specified and then run
"make olddefconfig" against that (or better: a copy of that in order
to avoid modifying a source from git).

I'm just writing a patch to do that for the shim config as it is nasty
to remove shim.config from my patches in case it has been modified by
the build (again) and STGit has picked it up.


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