On 02/20/2013 01:31 PM, Jim Fehlig wrote:
> The libxl driver was setting the backend field of libxl_device_disk
> structure to LIBXL_DISK_BACKEND_TAP when the driver element of disk
> configuration was not specified. This needlessly forces the use of
> blktap driver, which may not be loaded in dom0
>
>
https://bugzilla.redhat.com/show_bug.cgi?id=912488
>
> Ian Campbell suggested that LIBXL_DISK_BACKEND_UNKNOWN is a better
> default in this case
>
>
https://www.redhat.com/archives/libvir-list/2013-February/msg01126.html
> ---
> src/libxl/libxl_conf.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
ACK.