Re: [Xen-users] virtual gigabit

To:	"Daniel Kao" <dkao@xxxxxxxxxxxx>
Subject:	Re: [Xen-users] virtual gigabit
From:	"Emre ERENOGLU" <erenoglu@xxxxxxxxx>
Date:	Mon, 7 Apr 2008 23:25:32 +0200
Cc:	"xen-users@xxxxxxxxxxxxxxxxxxx >> Xen-user List" <xen-users@xxxxxxxxxxxxxxxxxxx>
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Hi,

If you have either:
- a HVM Linux Guest with unmodified_drivers (pv drivers for hvm)
or
- a HVM Windows guest running on top of a commercial Xen product with PV drivers installed

you can obtain gigabit speeds. James Harper is working on a set of PV drivers (GPL) which can run on the open source XEN, but not reaching gigabit speeds yet.

Emre

On Mon, Apr 7, 2008 at 9:31 PM, Daniel Kao <dkao@xxxxxxxxxxxx> wrote:

Gordon,

AFAIK, and someone please correct me if I'm wrong, but GbE is only available to PV's and not HVM's if you're bridging interfaces into a guest domain. Otherwise, HVM's are limited to Fast-Ethernet when bridged.

Only other option is to get a dedicated GbE NIC for an HVM and do a PCI passthru for it.

Gordon McLellan wrote:
Is there anyway to get gigabit networking for a fully virtualized
guest?  I've tried searching for this one, but all I get are results
about gigabit networking for the host / dom0, nothing for domU.

Thanks,
Gordon
  
-- 
Daniel Kao
Übermind, Inc.
dkao@xxxxxxxxxxxx
Seattle, WA, U.S.A.
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Emre Erenoglu
erenoglu@xxxxxxxxx

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Re: [Xen-users] virtual gigabit