[Gllug] performance of xen dom0 vs native linux

[Nix]

On 16 May 2009, Richard Jones said:

> On Tue, May 12, 2009 at 08:38:54PM +0100, Nix wrote:
>> Bah, guests can often command bus-mastered DMA transfers to anywhere in
>> RAM. Forget *rebooting*, we can root you on the fly!
>
> Don't want to get too picky here, but VT-d can stop this.  VT-d is

Ooo! Nice.

> partly a function of the Northbridge, so it can remap DMA transfers to
> DRAM based on the PCI device requesting it.

Nifty.
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