Re: [Qemu-devel] [PATCH v2 01/15] configure: add the disable-tcg option

[Daniel P. Berrange]

On Mon, Jul 03, 2017 at 12:55:04PM +0200, Paolo Bonzini wrote:
> 
> 
> On 03/07/2017 12:33, Daniel P. Berrange wrote:
> >> i386-softmmu and x86_64-softmmu are singled out here, because they're
> >> the only targets where --disable-tcg compiles.  For the others, more
> >> work is needed (see patches 6-15 in Yang Zhong's series).
> >
> > Even with that, you still can't disable TCG if building on a non-x86
> > host, since that'd leave you with no available CPU at all. So the
> > code still needs refactoring to check architectures properly.
> 
> It would leave you with a tools-only build; whether that's a good idea,
> it's another story.  I think it's acceptable, but others may disagree.

If you do 'configure --target-list=x86_64-softmmu --disable-tcg' on a
non-x86 host I would be surprised to find  x86_64-softmmu not built.
IMHO if you explicitly request system emulators and its not posisble
to build then, an error should be report, rather than silently ignoring
the request.


Regards,
Daniel
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