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[Openstack] Create VMs with Power architecture(ppc64) on OpenStack running on x86_64 nodes??


On 2018-11-19 11:25, Yedhu Sastri wrote:

> Hello All, 
> 
> I have some use-cases which I want to test in PowerPC architecture(ppc64). As I dont have any Power machines I would like to try it with ppc64 VM's. Is it possible to run these kind of VM's on my OpenStack cluster(Queens) which runs on X86_64 architecture nodes(OS RHEL 7)??

I'm not 100% sure, but I'm 95% sure that the answer to your question is
"No."  While there's much emulation that occurs, the CPU isn't so much
emulated, but more abstracted.  Constructing and running a modern CPU in
software would be non-trivial. 

-Ken 

> I set the image property architecture=ppc64 to the ppc64 image I uploaded to glance but no success in launching VM with those images. I am using KVM as hypervisor(qemu 2.10.0) in my compute nodes and I think it is not built to support power architecture. For testing without OpenStack I manually built qemu on a x86_64 host with ppc64 support(qemu-ppc64) and then I am able to host the ppc64 VM. But I dont know how to do this on my OpenStack cluster. Whether I need to manually build qemu on compute nodes with ppc64 support or I need to add some lines in my nova.conf to do this?? Any help to solve this issue would be much appreciated.
> 
> -- 
> 
> Thank you for your time and have a nice day, 
> 
> With kind regards, Yedhu Sastri 
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