[ovirt-users] hostusb hook - VM device errors in Windows VM

Michal Skrivanek michal.skrivanek at redhat.com
Tue Jul 22 08:12:15 UTC 2014


On 21 Jul 2014, at 20:54, Steve Dainard wrote:

> I should mention I can mount this usb drive in a CentOS 6.5 VM without any problems.

Hi,
there should be no difference configuration-wise. well, please compare libvirt's xml to be sure and confirm
If it's the case then it might be a problem of qemu/kvm and/or windows

Thanks,
michal

> 
> 
> On Mon, Jul 21, 2014 at 2:11 PM, Steve Dainard <sdainard at miovision.com> wrote:
> I'm using the hostusb hook on RHEV 3.4 trial.
> 
> The usb device is passed through to the VM, but I'm getting errors in a Windows VM when the device driver is loaded.
> 
> I started with a simple usb drive, on the host it is listed as:
> 
> Bus 002 Device 010: ID 05dc:c75c Lexar Media, Inc. 
> 
> Which I added as 0x05dc:0xc75c to the Windows 7 x64 VM.
> 
> In Windows I get an error in device manager:
> USB Mass Storage Device "This device cannot start. (Code 10)"
> Properties/General Tab: Device type: Universal Serial Bus Controllers, Manufacturer: Compatible USB storage device, Location: Port_#0001.Hub_#0001
> 
> Under hardware Ids: 
> USB\VID_05DC&PID_C75C&REV_0102
> USB\VID_05DC&PID_C75C
> 
> So it looks like the proper USB device ID is passed to the VM.
> 
> I don't see any error messages in event viewer, and I don't see anything in VDSM logs either.
> 
> Any help is appreciated.
> 
> Steve
> 
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