Gilboa Davara wrote:
On Tue, 2006-06-20 at 09:19 -0700, list user wrote:
Gilboa Davara wrote:
Hello all,
I'm installing Xen on a machine with multiple Gbps NICs that I'm using
for driver development.
Is there a way to give the guest complete control over a number of these
NICs without having the host to route/bridge the traffic to the guest?
Yes.
1) use "lspci" to determine which PCI slots the network cards occupy
2) Hide them from dom0: in dom0's grub.conf add "pciback.hide(xx:yy.z)"
to the kernel boot parameters. e.g.
"module /vmlinuz-2.6.16-xen ro root=/dev/vg0/fc4 \
"pciback.hide=(aa:aa.a)(bb:bb.b)"
Multiple slots may be hidden by adding additional parentheticized
slot info. *Don't use quotes* inside the parens.
3) give the selected pci slots to the domU by adding a corresponding
line to its config file: e.g into /etc/xen/vm1 add:
"pci = ['aa:aa.a','bb:bb.b']"
Multiple slots are given within the brackets, *separated by commas*,
*quotes are required* within the brackets.
As of 3.0.2 exported pci slots crash domUs when when trying to
automagically save/restore domUs using xendomains or the other tools.
They will require clean boots.
Hope that helps.
Thanks!
Should I assume I expect near-native performance, right?
AFAIK
I'll give it a try later this week.
Gilboa
