Re: [PATCH] maintainers: claim responsability for xen

On Fri, Feb 17, 2017 at 5:07 PM, Konrad Rzeszutek Wilk
[off-list ref] wrote:

On Thu, Feb 16, 2017 at 10:51:44PM +0100, Vincent JARDIN wrote:

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Le 16/02/2017 à 14:36, Konrad Rzeszutek Wilk a écrit :

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Is it time now to officially remove Dom0 support?

So we do have an prototype implementation of netback but it is waiting
for review of xen-devel to the spec.

And I believe the implementation does utilize some of the dom0
parts of code in DPDK.

Please, do you have URLs/pointers about it? It would be interesting to share
it with DPDK community too.

Joao, would it be possible to include an tarball of the patches? I know
they are no in the right state with the review of the staging
grants API - they are incompatible, but it may help folks to get
a feel for what DPDK APIs you used?

Staging grants API:
https://lists.xenproject.org/archives/html/xen-devel/2016-12/msg01878.html

The topic of the grants API is unrelated to the dom0 memory pool. The
memory pool which uses xen_create_contiguous_region() is used in cases
we know that there are no hugepages available.

Joao and I met in Dublin and I whined about not being able to call
into the grants API from userspace and instead need to kick a kernel
driver to do the work for every burst. It would be great if that could
change in the future.