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Re: [Xen-devel] Re: [PATCH 1/4] xen: Clean up build system

On 2011-06-21 15:01, Ian Jackson wrote:
> Alexander Graf writes ("[Xen-devel] Re: [PATCH 1/4] xen: Clean up build 
> system"):
>> On 21.06.2011, at 08:26, Jan Kiszka wrote:
>>> From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
>>> Introduce CONFIG_XEN_BACKEND so that this new config solely controls the
>>> target-independent backend build and CONFIG_XEN can focus on per-target
>>> building.
>> What's the incentive here? I very much doubt we'll ever want to
>> support xen on !x86. In fact, the better solution would probably be
>> to just move every build component to x86 specific code.
> In the past Xen has supported ppc too and there is a half-congealed
> arm port.  It's not a good assumption that Xen is x86-specific.

We aren't setting x86 dependency into stone here, we are just trying to
keep support for what is there today clean and simple. The build system
can become more advanced again once there is support for modern ARM or
PowerPC. But until other Xen archs materialize into a usable form, it's
futile to design for their past or possible future requirements. KVM is
also no longer considering IA64 when cleaning up.


Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux

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