Re: accessing USB disk-on-key from windows (under KVM)

[Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>]

Avi Kivity wrote:
> Ian Brown wrote:
>   
>> Hello,
>> Is there a way to access a USB disk-on-key from windows which runs on
>> Linux under KVM?
>>
>>   
>>     
>
> You can add it as a regular disk (-hdb /dev/sdb or whatever it's called;
> make sure it isn't mounted in the host) or maybe via the -usbdevice
> option (don't know if/how that works at all).
>   

You have three options:

1) Expose it as -hdb /dev/sdb
2) Expose it as an emulated USB disk -usbdevice disk:/dev/sdb
3) Pass it through directly to the guest by disabling Linux from using 
the device and then passing it through with -usbdevice host:x.y

#1 will perform the best
#2 will give you the give you the most flexibility (you can remove the 
disk and insert at run time)
#3 would allow you to support exotic disks that go beyond the standard 
mass storage specification.

I'd recommend using #2.

Regards,

Anthony Liguori


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