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xen-users
Re: [Xen-users] no pci support in xen-3.0.1 with gentoo?
Petersson, Mats wrote:
-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
Bobber Cheng
Sent: 10 February 2006 11:27
To: Kneschke.Lars
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] no pci support in xen-3.0.1 with gentoo?
Kneschke.Lars wrote:
Bobber Cheng <bobber.cheng@xxxxxxxxx> schrieb:
Any suggestion?
The virtual machine has no PCI devices, until you assign some PCI
slots to this machine.
And the assignment of PCI slots is also not working in 3.0.1
So you mean I could not use pci devices such as ethernet
device with xen 3.0.1? if it's true, that's too bad cause a
Linux without network function is nothing.
You can certainly get network functionality in DomU - you just can't get
directly to the actual physical PCI device.
Generally, the DomU is linked to the rest of the world through a
"bridge" device - which is just a piece of software that transfers the
data to Dom0, where Dom0 decides whether it's going to send it to the
Ethernet card or just transfer it to another domain - or perhaps answer
itself (in case you ping dom0 for instance).
Could you tell me how to use bridge with xen?
But if you really want to have direct access to the real hardware from a
DomU, then you need to use either Xen 2.0.x, or wait for the PCI
assignment feature in 3.0 to appear - I did see some patches a few days
ago, but I'm not sure if they are applied to unstable or not. There were
several comments and a bit of toing and froing on the patch, IIRC.
--
Mats
Bests,
Bobber
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