[Gllug] Letting Bohcs, UML or vmware have direct access to a PCI card or a SCSI device (not disk).

[Ian Norton-Badrul]

On Thu, Sep 15, 2005 at 01:42:12PM +0100, Nix wrote:
> On Wed, 14 Sep 2005, Ian Norton-Badrul murmured woefully:
> > I'm looking into doing this with some hardware secuiry modules (we make
> > them here)
> 
> I hope that direct access to a SCSI device isn't possible, because given
> that it's quite easy to access *any* SCSI device on the bus, and also to
> completely violate system security (think `command a DMA into kernel
> memory').

AFAIK Direct scsi access to a device is possible if you put another
controller on the bus (bus arbitration), im talking to synchronous scsi
hardware so there would be no issues as with sharing a disk for
example.

I'm probably talking rubbish

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