3 Replies Latest reply on Jul 26, 2013 7:55 AM by 1024945

    PCI passthrough with xen-pciback module in OVM 3.1.1


      is it possible to use xen-pciback module to assign HBAs via PCI passthrough to OVM (3.1.1) virtual machines?
      Is there a detailed description available?

      I tried the following 2 settings:

      1) /etc/modproble.conf
      options xen-pciback hide=(0000:03:00.0)(0000:03:00.1)

      2) /boot/grub/menu.lst
      title Oracle VM Server-ovs (xen-4.1.2 2.6.39-200.1.1.el5uek)
      root (hd0,0)
      kernel /xen.gz dom0_mem=964M
      module /vmlinuz-2.6.39-200.1.1.el5uek ro root=UUID=31a56ed0-d432-4efe-ad6c-80b78a68df07 xen-pciback.hide=(03:00.0)(03:00.1)
      module /initrd-2.6.39-200.1.1.el5uek.img

      After reboot I expected to see the assignable devices with follow command, but xen-pciback module is not loaded.
      # xl pci-list-assignable-devices
      libxl: error: libxl_pci.c:517:libxl_device_pci_list_assignable Looks like pciback driver not loaded

      When I load xen-pciback with modprobe, I can't see any assignable devices.