Ubuntu
libvirt package

  1. Bug #545795
  2. Comment #18

Comment 18 for bug 545795

Revision history for this message
Andreas Ntaflos (daff) wrote : Re: apparmor driver blocks access to hostdev and pcidev devices

Looks like I found it. The VM in my case is trying to access

/sys/devices/pci0000:00/0000:00:1e.0/0000:01:04.4/usb6/devnum

but the abstractions/libvirt-qemu profile only allows

  /sys/bus/usb/devices/ r,
  /sys/devices/*/*/usb[0-9]*/** r,

when it should (also) allow

  /sys/devices/*/*/*/usb[0-9]*/** r,

With this line added the guest boots fine and immediately gets access to the USB device.

I have attached a patch for this one-line fix, hope it helps.