RE: [Xen-merge] CONFIG_XEN vs. CONFIG_X86{,_64}_XEN

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

>CONFIG_XEN should be used whenever the change applies
>to Xen for all architectures.  CONFIG_X86_XEN should be used
>in generic code when a change applies only to x86.
>(There was a recent example of this... I can dig it up
>if you wish.)

It'd be interesting, if it doesn't take you too much time. I'd have
wanted to rather make this a conditional like

#if defined(CONFIG_XEN) && defined(CONFIG_X86)

as I expect this to be rare.

>If the code is clearly x86-specific
>(e.g. in arch/i386 or include/asm-x86), I agree the
>_X86_ part is superfluous.

Sure. But I'd like this to be consistent, which is why, for now, I used
CONFIG_X86_XEN everywhere.

Jan

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