[virt-tools-list] Emulating raspberry pi (arm1136-r2) in virt-manager?

[Leonardo Augusto Guimarães Garcia]

On 02/15/2013 05:47 PM, Simon Lambourn wrote:
>
> This is looking a bit more complicated than I thought... I now 
> understand that I can't simply define the ARM machine in xml and 
> define it using virsh, as the CPU type (arm1136-r2) is rejected by 
> libvirt which can't test if it's valid or not.
>
> So I think what Cole and Martin are suggesting is that I define a 
> dummy emulator (the wrapper script) which plays with the arguments 
> passed by libvirt and then calls the real emulator qemu-system-arm. I 
> had a quick go at this but I couldn't work out where to put the 
> wrapper script.  I tried putting a wrapper (qemu-system-pi - written 
> in python) in /usr/bin, but virsh define couldn't find it.
You should put the whole path for the script in your xml. Instead of:

<emulator>/usr/libexec/qemu-kvm</emulator>

or something like the above, you should put the path to your wrapper-script.

If your system has selinux enabled, you might need to properly set 
selinux context of the wrapper script so that it works.

Best regards,

Leonardo Garcia
>
> I also get the impression that libvirt calls the wrapper during 
> define, to validate the arguments?   So these calls also have to be 
> caught and passed to the real emulator.
>
> Overall I am tempted to stick with my original method of simply 
> issuing the qemu-system-arm command directly from a script, but if 
> anyone can suggest how I can get the wrapper to be found - or point me 
> to an example of one - then I will keep trying.  Thanks for all the 
> help and encouragement so far.
>
> Simon
>
> _______________________________________________
> virt-tools-list mailing list
> virt-tools-list at redhat.com
> https://www.redhat.com/mailman/listinfo/virt-tools-list
>