Re: [Qemu-ppc] [Qemu-devel] [PATCH 0/2] Clean up the ppc default configs

[Thomas Huth]

On 15.01.2018 14:01, Peter Maydell wrote:
> On 15 January 2018 at 09:30, Thomas Huth <address@hidden> wrote:
>> (off-topic question: Do we still need a separate ppcemb-softmmu nowadays?
>> It seemed to be useful 10 years ago when everybody was doing KVM on
>> embedded PPC, but these days seem to be pretty much over now, so IMHO
>> just using ppc-softmmu for embedded should be enough nowadays? We could
>> save quite some compilation- and "make check"-time if we could finally get
>> rid of ppcemb-softmmu again...)
> 
> There are some specific differences guarded by TARGET_PPCEMB, like
> the way it has a different TARGET_PAGE_BITS value, and some code
> in target/ppc/kvm.c related to telling KVM about interrupts. You
> would need to make those all be runtime decisions I assume.

True ... but while we maybe could turn those into runtime checks, I now
rather think it's maybe better to go the other way round: Maybe we
should not include each and everything into ppc64-softmmu, but put the
embedded stuff only in ppcemb-softmmu and the 32-bit stuff only in
ppc-softmmu instead? That way we could, for example, also make the
output of "-cpu help" and "-device help" a little bit more user friendly...

 Thomas