Re: [Xen-devel] [RFC PATCH] xen-block: introduces extra request to pass-through SCSI commands

[Juergen Gross <jgross@xxxxxxxx>]

On 01/03/16 19:08, Ian Jackson wrote:
> Bob Liu writes ("Re: [RFC PATCH] xen-block: introduces extra request to 
> pass-through SCSI commands"):
>> One thing I'm still not sure about PVSCSI is do we have the same security 
>> issue since LIO can interface to any block device.
>> E.g when using a partition /dev/sda1 as the PVSCSI-backend, but the 
>> PVSCSI-frontend may still send SCSI operates on LUN bases (the whole disk).
> 
> I don't think you can use pvscsi to passthrough a partition such as
> /dev/sda1.  Such a thing is not a SCSI command target.

It might be possible via the fileio target backend. In this case LUN
based SCSI operations are ignored/refused/emulated by LIO.


Juergen


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