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Re: [libvirt] [PATCH] libxl: Fix initialization of nictype in libxl_device_nic

On 01/06/2014 11:59 AM, Jim Fehlig wrote:
> As pointed out by the Xen folks [1], HVM nics should always be set
> to type LIBXL_NIC_TYPE_VIF_IOEMU unless the user explicity requests
> LIBXL_NIC_TYPE_VIF via model='netfront'.  The current logic in
> libxlMakeNic() only sets the nictype to LIBXL_NIC_TYPE_VIF_IOEMU if
> a model is specified that is not 'netfront', which breaks PXE booting
> configurations where no model is specified (i.e. use the hypervisor
> default).
>   Reported-by: Stefan Bader <stefan bader canonical com>
> [1] https://www.redhat.com/archives/libvir-list/2013-December/msg01156.html
> Signed-off-by: Jim Fehlig <jfehlig suse com>
> ---
> I toyed with detecting whether to use an IOEMU nic in libxlMakeNicList()
> and passing the bool to libxlMakeNic(), but in the end left the detection
> to libxlMakeNic().

Seems okay to me with the approach you took.

>  src/libxl/libxl_conf.c | 20 ++++++++++++++------
>  src/libxl/libxl_conf.h |  4 +++-
>  2 files changed, 17 insertions(+), 7 deletions(-)


Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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