From: David Edmondson <dme@sun.com>
To: "Daniel P. Berrange" <berrange@redhat.com>
Cc: xen-devel@lists.xensource.com, John Levon <levon@movementarian.org>
Subject: Re: Re: [Xen-changelog] [xen-3.1-testing] xend: fix server/netif.py so that it respects type=None.
Date: Fri, 5 Oct 2007 18:36:22 +0100 [thread overview]
Message-ID: <20071005173622.GN1326@enoexec.uk.sun.com> (raw)
In-Reply-To: <20071005173048.GA30405@redhat.com>
On Fri, Oct 05, 2007 at 06:30:48PM +0100, Daniel P. Berrange wrote:
> > The whole "PV and IOEMU" at the same time makes me uncomfortable,
> > though it looks to be more problematic with disks than network
> > devices.
>
> The key is that the Dom0 configuration of the guest should allow the
> guest kernel to choose the drivers.
Understood.
> Obviously you don't want both drivers active at once, so one idea is
> for the PV drivers to 'grab' the PCI resources associated with the
> emulated NIC.
That seems so wrong.
In Solaris drivers are loaded as a result of a mapping from the PCI ID
of the device to a driver name (I've no idea if it's the same in
Linux). What happens if the RTL8139 driver gets in first?
> So once you load the PV driver, there's no way for the RTL8139
> driver to get access to the NIC, thus ensuring only one is ever
> active at once. The same principle applies to disk adapters.
next prev parent reply other threads:[~2007-10-05 17:36 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200710041540.l94FeHjC015059@xenbits.xensource.com>
2007-10-05 0:21 ` [Xen-changelog] [xen-3.1-testing] xend: fix server/netif.py so that it respects type=None John Levon
2007-10-05 0:38 ` Daniel P. Berrange
2007-10-05 1:22 ` Daniel P. Berrange
2007-10-05 13:41 ` David Edmondson
2007-10-05 14:00 ` Keir Fraser
2007-10-05 14:33 ` David Edmondson
2007-10-05 15:29 ` Daniel P. Berrange
2007-10-05 15:31 ` David Edmondson
2007-10-05 15:56 ` Keir Fraser
2007-10-05 16:06 ` Daniel P. Berrange
2007-10-05 16:09 ` Keir Fraser
2007-10-05 16:17 ` David Edmondson
2007-10-06 6:41 ` Keir Fraser
2007-10-08 8:20 ` David Edmondson
2007-10-05 16:16 ` David Edmondson
2007-10-05 17:30 ` Daniel P. Berrange
2007-10-05 17:36 ` David Edmondson [this message]
2007-10-05 17:57 ` Daniel P. Berrange
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