Re: [Qemu-devel] [vfio-users] [PATCH v2 1/3] input: add qemu_input_qcode_to_linux + qemu_input_linux_to_qcode

[Jonathan Scruggs <j.scruggs@gmail.com>]

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Hi,

Thanks for the reply.

I changed the conf to:
cgroup_controllers = [ "cpu", "memory", "cpuset", "cpuacct" ]
Also, cgroups are not mounted at /dev/cgroup
I don't have selinux or apparmor.

However, I still get this:
Error starting domain: internal error: early end of file from monitor,
possible problem: 2016-01-04T13:07:17.889701Z qemu-system-x86_64:
-input-linux
/dev/input/by-path/pci-0000:00:14.0-usb-0:12:1.0-event-kbd,grab-all=on:
Could not open '/dev/input/by-path/pci-0000:00:14.0-usb-0:12:1.0-event-kbd'

Thanks,
Jon

On 4 January 2016 at 11:56, Gerd Hoffmann <kraxel@redhat.com> wrote:

> On Mo, 2016-01-04 at 10:10 +0000, Jonathan Scruggs wrote:
> > Hi,
> >
> >
> > I tried these patches with qemu 2.5.0 on Gentoo and libvirt. I get the
> > following error:
> > Error starting domain: internal error: early end of file from monitor:
> > possible problem:
> > 2015-12-22T21:51:20.659520Z qemu-system-x86_64:
> > -input-linux
> /dev/input/by-path/pci-0000:00:14.0-usb-0:12:1.0-event-kbd,grab-all=on:
> Could not open '/dev/input/by-path/pci-0000:00:14.0-usb-0:12:1.0-event-kbd'
> >
> >
> > I also tried setting /dev/input/event9 to permissions of 666 to see if
> > it was a permission error, but the same thing happened. Any help would
> > be appreciated.
>
> libvirt uses cgroups to restrict qemu.  You can tweak cgroup_controllers
> in /etc/libvirt/qemu.conf, when you remove "devices" controller it
> should work (unless something else like selinux or apparmor applies
> additional restrictions).
>
> HTH,
>   Gerd
>
>

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