[Xen-devel] Fail to passthru PCI device to HVM

[Jun Koi <junkoi2004@xxxxxxxxx>]

Hi,

I am trying to passthru a PCI device to HVM. I think that I already
successfully unbind the device in Dom0, by verifying like below:

#xm pci-list-assignable-devices
0000:01:00.0

Then I put a line like below into HVM config file:

pci = ['0000:01:00.0']

But creating the HVM failed, with below error:

"Error: failed to assign device 01:00.0: maybe it has already been
assigned to other domain, or maybe it doesn't exist."

The error message seems misleading, as there is no other VM is running
(only Dom0). So how can I fix this problem?

(I am using -unstable, CS 20145:8fc927798476)

Thanks,
J

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