I believe XenServer exposes everything you need in the VGPU_type class:
# xe vgpu-type-list params=all
uuid ( RO) : 6e175f2c-e8f1-2dce-aadf-8a8962b6f0e8
vendor-name ( RO): NVIDIA Corporation
model-name ( RO): GRID K260Q
framebuffer-size ( RO): 2013265920
max-heads ( RO): 4
max-resolution ( RO): 2560x1600
supported-on-PGPUs ( RO): b3fcca33-5fd6-9c44-70ac-c873f967d152;
8a436468-546b-ae69-2ab5-4e1d66d1a0eb; 37fbb55a-edf6-1aff-b80c-4f45ad46fc58;
6be9966b-f8bd-157a-5274-e927e57c28dd
enabled-on-PGPUs ( RO): b3fcca33-5fd6-9c44-70ac-c873f967d152;
8a436468-546b-ae69-2ab5-4e1d66d1a0eb; 37fbb55a-edf6-1aff-b80c-4f45ad46fc58;
6be9966b-f8bd-157a-5274-e927e57c28dd
supported-on-GPU-groups ( RO): 41c93ffe-23fe-2c50-674e-a8640e53b64f
enabled-on-GPU-groups ( RO): 41c93ffe-23fe-2c50-674e-a8640e53b64f
VGPU-uuids ( RO):
framebuffer-size is the video RAM.
The number of vGPUs of a particularly type that can be supported on a pGPU (the
fraction of the GPU you get, if you like to think of it that way), is in the
GPU class as supported_VGPU_max_capacities.
XenCenter has none of this knowledge hard coded, so anything visible in
XenCenter comes from XenServer over the XenAPI.
--
Stephen Turner
-----Original Message-----
From: Ram Ganesh [mailto:ram.gan...@citrix.com]
Sent: 13 March 2014 09:55
To: dev@cloudstack.apache.org
Cc: Sanjay Tripathi; Sateesh Chodapuneedi
Subject: RE: Review Request 17889: CLOUDSTACK-4762: Enabling vGPU support for
XenServer.
If we look at [1] section "Interoperability and compatibility requirements"
each of the cards supports certain profiles which has underpinning to Video RAM
it supports, no of vGPUs that can be supported on one physical GPU. These
mapping are maintained in CS. This mapping is required for the planner to pick
a host which has the required resources to deploy a VM. Currently XenServer
does not expose the Video RAM that each profile supports. Once we have that and
all other loose ends around resources available vs used are taken care of then
we can try to dynamically learn the lists from the hosts.
[1]
https://cwiki.apache.org/confluence/display/CLOUDSTACK/GPU+and+vGPU+support+for+CloudStack+Guest+VMs
