Am 10.11.2010 schrieb "Keir Fraser <keir@xxxxxxx>":
> On 10/11/2010 13:27, "Dietmar Hahn" <dietmar.hahn@xxxxxxxxxxxxxx> wrote:
> > The Intel VTd-spec writes in chapter 8.3. "DMA Remapping Hardware Unit
> > Definition Structure" that the "Segment Number" is the PCI Segment associated
> > with this unit.
> > So what is a PCI Segment here?
> PCI segments/domains are groupings of PCI buses. So they're a further step
> up the hierarchy from bus-dev-fn. Very few x86 systems have multiple
> segments, so it's almost certain that segment=0 is correct for all PCI
> devices in your system.
Thanks, now I know what the first part of "0000:10:00.0" in
/sys/bus/pci/devices is for ;-)
Company details: http://ts.fujitsu.com/imprint.html