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On 8/7/2018 8:54 AM, Chris Apsey wrote:
> We don't actually have any non-x86 hardware at the moment - we're just 
> looking to run certain workloads in qemu full emulation mode sans KVM 
> extensions (we know there is a huge performance hit - it's just for a 
> few very specific things).  The hosts I'm talking about are normal 
> intel-based compute nodes with several different qemu packages installed 
> (arm, ppc, mips, x86_64 w/ kvm extensions, etc.).
> 
> Is nova designed to work in this kind of scenario?  It seems like many 
> pieces are there, but they're just not quite tied together quite right, 
> or there is some config option I'm missing.

As far as I know, nova doesn't make anything arch-specific for QEMU. 
Nova will execute some qemu commands like qemu-img but as far as the 
virt driver, it goes through the libvirt-python API bindings which wrap 
over libvirtd which interfaces with QEMU. I would expect that if you're 
on an x86_64 arch host, that you can't have non-x86_64 packages 
installed on there (or they are noarch packages). Like, I don't know how 
your packaging works (are these rpms or debs, or other?) but how do you 
have ppc packages installed on an x86 system?

-- 

Thanks,

Matt