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Re: [Xen-devel] [PATCH] xen: remove CONFIG_XEN_DOM0 compile option

On 01/10/2012 05:44 AM, Stefano Stabellini wrote:
> On Mon, 9 Jan 2012, Andrew Jones wrote:
>> I guess if we did the s/XEN_DOM0/LOCAL_APIC && IO_APIC && ACPI/ in
>> arch/x86/pci/xen.c it would be pretty easy to review for equivalence.
>> Then keep CONFIG_PRIVILIGED, but drop XEN_DOM0 from everywhere else and
>> compile in the 3 files. I don't think it makes much sense to do it
>> though. XEN_DOM0 keeps things tidier now and might be useful later.
> we can keep things clean with the following:
> #define XEN_DOM0
> #endif
> in include/xen/xen.h.
> So in the source files we can still '#ifdef XEN_DOM0', but at the same
> time we can get rid of the build symbol: everybody wins.

No, really, I think this is silly.  This kind of dependency information
should be encoded in the Kconfig system, and not reimplemented in an
ad-hoc way.

If there were a clean way to do what Andrew wants then I'd support it,
but this thread has descended into a spiral of madness, which makes me
think its a lost cause.

If the root complaint is that "customers think that anything set in
.config is a supported feature", then the solutions are to support all
the features in .config, re-educate the customers that they're wrong, or
maintain a local patch to do this stuff.


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