Jarod Wilson wrote:
Clayton Rogers wrote:
Hi Jarod,
Is this guest paravirtualized or fully virtualized?
I can however see the bnx2 and e1000 modules in my Dom0.
Because with my guest I am running the following kernel:-
kernel-xenU-2.6.9-55.0.2.EL
This guest kernel does not have the e1000 and bnx2 modules (or any
others for that matter).
Ah, I thought we were talking about a rhel5 guest, based on your
question "Why aren't they [e1000/bnx2] part of a xen domU kernel in
RHEL5 ?". The kernel you're referring to above is a rhel4 kernel.
Different story, and don't know the answer there.
AFAIK, PCI passthrough support is only available in RHEL5 xen guest
kernels. Virtualized kernel for RHEL4 does not support PCI passthrough.
[EMAIL PROTECTED] wrote: -----
To: "Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list"
<[email protected]>
From: Jarod Wilson <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
Date: 06/29/2007 06:56AM
Subject: Re: [rhelv5-list] Xen Guest Kernel Modules
Stephen John Smoogen wrote:
> On 6/28/07, Clayton Rogers <[EMAIL PROTECTED]> wrote:
>> I understand this part. I am passing the pci card through to the
>> paravirtualized instance.
>>
>> Shouldn't you be able to compile and use additional devices you pass
>> through?
>>
>> Regards
>>
>>
>
> As far as I have run into.. and I am very certain I am probably wrong,
> the answer is no. Certain devices are 'special' due to other layers of
> the kernel and can not be handled in such a manner. In most cases if
> you are needing the speed/performance of a direct connection you will
> need to use a pure hardware solution. [My information is rather old
> and dealt with someone wanting to make xen snort boxes on gigabit
> networks...]
Can't say that I have any clue about passing through pci devices myself,
but something else just dawned on me... The e1000 and bnx2 modules *are*
built for kernel-xen, since its used for both dom0 and domU. This here's
from a xen guest I've got up and running:
# modinfo e1000
filename:
/lib/modules/2.6.18-32.el5xen/kernel/drivers/net/e1000/e1000.ko
version: 7.3.20-k2-NAPI
license: GPL
description: Intel(R) PRO/1000 Network Driver
author: Intel Corporation, <[EMAIL PROTECTED]>
srcversion: ADCAB2C9F5C9C78F9962FC8
[...snip...]
# modinfo bnx2
filename: /lib/modules/2.6.18-32.el5xen/kernel/drivers/net/bnx2.ko
version: 1.5.11
license: GPL
description: Broadcom NetXtreme II BCM5706/5708 Driver
author: Michael Chan <[EMAIL PROTECTED]>
srcversion: 33BED7A4FFB2AF8571C55C3
[...snip...]
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