Hi Andrea, You are right: the feature is currently restricted to a single GPU per VM. You could try manually passing through the PCI devices of multiple GPUs using “other-config:pci”.
I don’t think there are any plans to change this at the moment. Could you explain why passing through multiple GPUs to a single VM would be useful for you? Cheers, Rob From: xen-api-boun...@lists.xen.org [mailto:xen-api-boun...@lists.xen.org] On Behalf Of Andrea Curtoni Sent: 11 July 2013 4:36 PM To: xen-api@lists.xen.org Subject: [Xen-API] GPU passthrough: multiple vGPUs on the same VM Hello, it looks like it is currently not possible to attach multiple vGPUs to the same VM. I tried with XenServer 6.2 and suspect the same happens with XCP 1.6. I'm successfully using an NVIDIA card in GPU passthrough from a VM but when I try to attach a second vGPU I get the following error: [root@xenserver ~]# xe vgpu-create vm-uuid=... gpu-group-uuid=... A device with the name given already exists on the selected VM device: 0 Trying to specify a different device did not help: [root@xenserver ~]# xe vgpu-create vm-uuid=... gpu-group-uuid=... device=1 The device name is invalid device: 1 I think the support for multiple vGPUs on a single VM is not implemented at the moment, I'd like to understand the following: 1) is it possible to workaround this limitation? 2) are there any plans to introduce this support in the future? Thanks in advance, Andrea
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