[fedora-virt] Loading the KVM module (Fedora 19 on ppc64, POWER7)

Richard W.M. Jones rjones at redhat.com
Mon Sep 30 10:56:23 UTC 2013


On Mon, Sep 23, 2013 at 11:07:41AM +0200, Andrej Podzimek wrote:
> Hello,
> 
> I'm trying to run libvirtd and KVM on a POWER7 machine. For some reason, virt-manager on a client says there is no KVM support. :-( The KVM module installed on the system cannot be loaded:
> 
> 	# modprobe kvm
> 	modprobe: ERROR: could not insert 'kvm': Input/output error

Does your POWER7 machine actually support hardware virtualization?
Unfortunately our latest kernels have disabled Alex's PR KVM because
it wasn't compatible with HV KVM.  I've seen some patches floating
around (not upstream AFAIK) to fix it so both can be configured
together.

> 	kcmp(0x3, 0x1ffffff68330, 0, 0x3, 0)    = -1 EIO (Input/output error)

This could be a whole range of problems.  Probably best to dive into
the kernel code and find out what the real error is  :-(

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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