On Wed, Jan 13, 2021 at 02:42:51PM +0100, Helge Deller wrote: > On 1/13/21 2:09 PM, Philippe Mathieu-Daudé wrote: > > Cc'ing TCI, SH4 and PA contacts FWIW. > > > > On 1/7/21 5:06 PM, Daniel P. Berrangé wrote: > >> On Thu, Jan 07, 2021 at 04:50:36PM +0100, Paolo Bonzini wrote: > >>> On 07/01/21 16:01, Peter Maydell wrote: > >>>> On Thu, 7 Jan 2021 at 14:03, Paolo Bonzini <pbonz...@redhat.com> wrote: > >>>>> > >>>>> Make CONFIG_TCG_INTERPRETER a Meson option, and enable TCI (though with > >>>>> a warning) if the host CPU is unsupported, making it more similar to > >>>>> other --enable-* options. > >>>> > >>>> The current behaviour is kind of deliberate. Using the TCG > >>>> interpreter is a terrible idea and think it's better if we > >>>> don't let users end up using it without realising that they have. > >>>> (Personally I would vote to deprecate-and-delete TCI, and also > >>>> to just have configure error out on unknown host CPU architectures.) > >>> > >>> Fair enough, I can change this back of course. The missing targets are > >>> parisc, ia64 and sh4 I guess. > >> > >> ia64 is a dead host architecture and doesn't exist in any OS distro that > >> we target anymore, so I don't think we need to consider it. > > I have no opinion about ia64. > > >> Likewise parisc/hppa doesn't seem exist in Debian since Squeeze, so I > >> think we can rule that out too. > > Can we please keep parisc/hppa. > It's not an official platform any longer, but quite active in the > "unstable" debian-ports repository: > https://buildd.debian.org/status/architecture.php?a=hppa&suite=sid > > >> Only sh4 still seems to be supported in Debian. I expect the primary > >> need there is for sh4 guest support rather than sh4 host support. > > Same as for hppa/parisc, sh4 is in debian-ports too.
So that at least shows that we need *guest target* support hppa/sha4. The question still remains whether anyone is actually likely to be running/using QEMU on a sh4/hppa *host*, to emulate a different guest arch ? This is what that TCG interpreter provides for. eg would anyone really want to emulate aarch64 guest when runing on a hppa host ? Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|