On Tue, 2015-09-08 at 16:47 +0100, Daniel P. Berrange wrote: > > Or we could just query everything that looks like a QEMU > > binary and then lookup the correct one for the guest based > > on the query results, couldn't we? Again, assuming such > > interface even exists. > > I'd prefer libvirt to not have a trawl through every QEMU > binary to do this really.
AFAIK we're already querying every binary for other stuff we're interested in, so adding one more query shouldn't change anything. Or am I missing something? > > I'm not sure they're covering all possible combinations, > > though. Which is why it would be really nice to be able to > > ask this stuff to QEMU itself. > > So, I think what we need do is to just refactor the > virQEMUCapsFindBinaryForArch(), to pull out the > architecture canonocalization out into a separate > method eg virArch virQEMUCapsCanonicalSystemArch(virArch) > and then just call it from both places Sounds reasonable. Are we sure we have a complete understanding of the relationship between targets and architectures, though? For example, I don't see anything about s390, and the ARM stuff doesn't look like it covers everything. I just want to make sure we're not doing anything wrong or missing any possible combination. Cheers. -- Andrea Bolognani Software Engineer - Virtualization Team