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

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Tue, 21 Jun 2011, Alexander Graf wrote:
> On 21.06.2011, at 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.
> 
> Well, is there a realistic chance that we'll ever get non-x86 Xen code into 
> upstream Qemu? I don't know how well the arm port's been doing, but the PPC 
> one is long dead and was always just a toy. I'm fairly sure nobody really 
> cares about the IA64 port either these days.

There is a realistic chance we'll get ARM Xen code into upstream Qemu.
That said, I don't think this patch would prevent it from happening.
Also I tested it and it works OK, so it is fine by me.

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