[Libvir] Adding devices to a vm using virsh
Hi, I need to be able to attach a PCI device to an existing machine. I know that in Xen's configuration file we need to add a line PCI=[....] The problem is that I didn't find any documentation on what the parametes are. When looking at virsh, there's an 'attach' function, but the only documented devices are disk and Ethernet card. Does anyone knows what is the format for adding a generic PCI card (or specifically, a Teradici card) using virsh attach Best Regards, Gabriel Kaufmann Software Engineer Gabriel.Kaufmann@ericom.com<mailto:Gabriel.Kaufmann@ericom.com> Ericom Software Tel (Dir): +972 2 591 1700 Ext 754 Tel (Main): +972 2 591 1700 http://www.ericom.com Access Done Right Empower Enterprise-Wide Access to Microsoft(r) Terminal Server, Virtual Desktops and Legacy Applications
On Mon, Apr 21, 2008 at 12:53:50PM +0300, Gabriel Kaufmann wrote:
I need to be able to attach a PCI device to an existing machine. I know that in Xen's configuration file we need to add a line PCI=[....] The problem is that I didn't find any documentation on what the parametes are.
When looking at virsh, there's an 'attach' function, but the only documented devices are disk and Ethernet card.
Does anyone knows what is the format for adding a generic PCI card (or specifically, a Teradici card) using virsh attach
Unfortunately I'm pretty sure we don't support adding arbitrary devices (ie. PCI pass-thru). You should be able to do this by starting the domain using an ordinary Xen configuration file. Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into Xen guests. http://et.redhat.com/~rjones/virt-p2v
On Mon, 2008-04-21 at 10:59 +0100, Richard W.M. Jones wrote:
Unfortunately I'm pretty sure we don't support adding arbitrary devices (ie. PCI pass-thru).
Rich, is this on our roadmap? If not do I need to BZ this? Aic
You should be able to do this by starting the domain using an ordinary Xen configuration file.
Rich.
On Mon, Apr 21, 2008 at 10:59:27AM +0100, Richard W.M. Jones wrote:
On Mon, Apr 21, 2008 at 12:53:50PM +0300, Gabriel Kaufmann wrote:
I need to be able to attach a PCI device to an existing machine. I know that in Xen's configuration file we need to add a line PCI=[....] The problem is that I didn't find any documentation on what the parametes are.
When looking at virsh, there's an 'attach' function, but the only documented devices are disk and Ethernet card.
Does anyone knows what is the format for adding a generic PCI card (or specifically, a Teradici card) using virsh attach
Unfortunately I'm pretty sure we don't support adding arbitrary devices (ie. PCI pass-thru).
That is correct - once the host device enumeration stuff is done we'll be in a better position to address this limitation, because we'll at least be able to figure what devices are available for passthrough. Passthrough in Xen at least is quite a complex thing requiring multiple admin steps outside the context of the guest config file which makes it rather unpleasant to deal with. I'm honestly not sure how this will map into the API, because I'd rather like this steps to not be exposed to users.
You should be able to do this by starting the domain using an ordinary Xen configuration file.
It also needs manual setup of the pciback driver & steps to hide the device from the host drivers. The Xen wiki is best place to look http://wiki.xensource.com/xenwiki/Assign_hardware_to_DomU_with_PCIBack_as_mo... Dan. -- |: Red Hat, Engineering, Boston -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
participants (4)
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Andrew Cathrow -
Daniel P. Berrange -
Gabriel Kaufmann -
Richard W.M. Jones