Daniel P. Berrange wrote:
On Wed, Apr 10, 2013 at 04:44:43AM +0200, Marek Marczykowski wrote:
> ---
> src/libxl/libxl_conf.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++
> src/libxl/libxl_conf.h | 2 ++
> 2 files changed, 74 insertions(+)
>
This needs todo more than just create the config. You need to use
the libvirt PCI APIs to validate that it is safe to assign the
devices requested, and track which devices are given to which
guest, to avoid concurrent assignemnt to 2 guests. Basically I'd
expect this to borrow all the code currently in the QMEU driver
related to the 'activePciHostdevs' and 'inactivePciHostdevs'
data structures.
Right. Chunyan already posted such a patch series [1], but Laine noted
that it would be useful to maintain the state of PCI device assignment
for coordination among multiple drivers. Chunyan posted a design [2]
for a "hostdev passthrough driver", and IIRC she has started coding
after receiving feedback from the list.
Regards,
Jim
[1]
https://www.redhat.com/archives/libvir-list/2013-January/msg00697.html
[2]
https://www.redhat.com/archives/libvir-list/2013-March/msg01331.html