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Re: [Xen-users] Re: AMD-V or VT

To: "Brian P. Martin" <Brian@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-users] Re: AMD-V or VT
From: Jan Bakuwel <jan.bakuwel@xxxxxxxxx>
Date: Sun, 09 Aug 2009 20:36:54 +1200
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Hi Brian,

For what its worth see if there are "parallel network servers". These
exist for USB and serial ports.


Brian P. Martin wrote:
>>> It's exactly the other way around, you'll need VT-d (which is a chipset
>> feature, NOT a cpu feature) to passthrough PCI(e) device to HVM guests.
>> For PV guests VT-d is not needed (not even VT for that matter)...
> Just to make sure I'm clear on this ... you're saying that unless I have
> VT-d, there is no way I'm going to give a fully virtualized guest direct
> access to a parallel port of any kind (either on the mobo or on a PCI card).
> Do I have that right?
> In a separate thread I've been trying to figure out why my fully virtualized
> guest can't access a license dongle on a parallel port, and if this is
> correct it sounds like the answer is "You can't."
>         -Brian M.
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