Re: [PATCH] Add I/O hypercalls for i386 paravirt

[James Courtier-Dutton]

Chris Wright wrote:
> * James Courtier-Dutton (James@xxxxxxxxxxxxxx) wrote:
>> If one could directly expose a device to the guest, this feature could
>> be extremely useful for me.
>> Is it possible? How would it manage to handle the DMA bus mastering?
> 
> Yes it's possible (Xen supports pci pass through).  Without an IOMMU
> (like Intel VT-d or AMD IOMMU) it's not DMA safe.
> 
> thanks,
> -chris

Ok, so I need to get a new CPU like the Intel Core Duo that has VT
features? I have an old Pentium 4 at the moment, without any VT features.

Kind Regards

James


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/