Ubuntu
libvirt package

  1. Bug #545795
  2. Comment #23

Comment 23 for bug 545795

Revision history for this message
James Neave (roboj1m) wrote : Re: apparmor driver blocks access to hostdev and pcidev devices

Hi,

I think I may also be having this problem, I'm trying to pass through a PCI WinTV NOVA T 500.
It's actually a pair of USB DVB-T tuners on a PCI card so it needed the 'three stars' in the /sys path in the apparmour profile.

I appended the improved solution:

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

But in the qemu log file I get:

husb: open device 10.2
husb: config #1 need -1
husb: 1 interfaces claimed for configuration 1
husb: grabbed usb device 10.2
usb_linux_update_endp_table: Cannot send after transport endpoint shutdown

Is this the same problem or have I found a new one? Googeling for that last line finds nothing!

I also had to add this to get past the permission denied error:

 /dev/bus/usb/** rw,

Would the output of 'find /sys/devices' be of any use?

Regards,

James.