On Thu, Mar 19, 2015 at 06:12:44AM -0400, Martin Polednik wrote:
Hello,
according to libvirt documentation, when using hostdev with USB device
...the user is responsible to call virNodeDeviceDettach (or virsh
nodedev-detach)
before starting the guest In libvirt-1.2.13-1.el7.x86_64, this leads to
virsh nodedev-detach usb_usb1
error: Failed to detach device usb_usb1
error: invalid argument: device usb_usb1 is not a PCI device
The failure is most probably caused in qemuNodeDeviceDeta where
qemuNodeDeviceGetPCIInfo
is called. Is it a bug, or usb hostdev can be done without
detaching/reattaching?
USB devices do not need to be detached/reattached explicitly, it's all
automatic.
And since qemuNodeDeviceDettach has always required a PCI device (see
commit 34d23b0), I think this is a documentation bug, introduced by
commit 10d3272.
Jan
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