[libvirt] [RFC PATCH v2 14.5/18] qemu: Bump the memory locking limit for mdevs as well

[Erik Skultety]

> > Nice!  For series:
> > 
> > Tested-by: Alex Williamson <alex.williamson at redhat.com>
> > 
> > (with KVMGT vGPU mdev)
> 

Thank you very much for the effort Alex. Given its current state, I'm glad
KVMGT was testable with my patches :).

> Nit, if I configure a VM for an invalid mdev uuid, I get the following
> error message:
> 
> Error starting domain: Requested operation is not valid: mediated devices are not supported by this kernel
> 
> Traceback (most recent call last):
>   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 88, in cb_wrapper
>     callback(asyncjob, *args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 124, in tmpcb
>     callback(*args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 83, in newfn
>     ret = fn(self, *args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/domain.py", line 1404, in startup
>     self._backend.create()
>   File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1035, in create
>     if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
> libvirtError: Requested operation is not valid: mediated devices are not supported by this kernel
> 
> In this case it should really just be a device not found error, the
> speculation that the kernel doesn't support mediated devices is
> incorrect.  Thanks,
> 

Noted, I'll address this as part of, presumably, v3 when I get a patch
review.

Thanks,
Erik