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xen-devel
RE: [Xen-devel] can several guest OS be bound to their own ports on mult
Apart from Brian's reply
Any n-port driver supported by Linux *should* also work with Xen.
If you want to assign different ports to different VMs these ports need
to appear as separate PCI devices (have a unique ID). The you should be
able to hide these ports from dom 0 and assign them individually to a
VM.
Also you need to make sure that you will be able to assign different
ports on each card to different IRQs because otherwise performance won't
be very good. In fact, I don't think shared interrupts between different
VMs has been particularly stress tested...it probably works ok but there
might be corner cases...
Rolf
> -----Original Message-----
> From: xen-devel-admin@xxxxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Igor Mendelev
> Sent: 06 December 2004 08:09
> To: xen-devel@xxxxxxxxxxxxxxxxxxxxx
> Subject: [Xen-devel] can several guest OS be bound to their own ports
on
> multiport Ethernet NIC?
>
> [basic architecture question from a Xen newbiew; sorry if it's too
basic]
>
> I'm looking into running 10-15 guest OS (XenoLinux) on a single box
where
> each guest OS will need separate physical Ethernet connection (with
it's
> own
> MAC address etc).
> Assuming I'll be using 2 or 4-port NICs (due to limited # of PCI
slots),
> can each of the
> 4 guest OS be bound to it's own port on such NIC?
> Which 4-port NICs (if any) are suppported now? Are any more
> planned/expected
> to be supported for Xen 3.0 (as this plan depends on using AMD64
anyway)?
>
> Thanks.
> Igor
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