Bug 1041040

Summary: [RFE][nova]: Implement PCI passthrough for xenapi driver.
Product: Red Hat OpenStack Reporter: RHOS Integration <rhos-integ>
Component: openstack-novaAssignee: RHOS Maint <rhos-maint>
Status: CLOSED UPSTREAM QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: hateya, markmc, ndipanov, sgordon, yeylon
Target Milestone: Upstream M3Keywords: FutureFeature
Target Release: 5.0 (RHEL 7)   
Hardware: Unspecified   
OS: Unspecified   
URL: https://blueprints.launchpad.net/nova/+spec/pci-passthrough-xenapi
Whiteboard: upstream_milestone_icehouse-3 upstream_status_implemented upstream_definition_approved
Fixed In Version: Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-12-12 21:31:50 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description RHOS Integration 2013-12-12 13:28:40 UTC 
Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/pci-passthrough-xenapi.

Description:

We will add the support for updating the status of the host by adding a plugin which uses the "pciback" driver in dom0 to list the PCI devices we can pass through.

We will add the mechanism to attach a pci device to a VM when booting. The attachement of PCI devices will be one of the steps in creating the VM. We won't support hot-plugging of PCI devices.

To list the devices, we will need an additional xenapi plugin, as xenapi does not allow us to list all PCI devices yet, it only lets us attach them.

This will simply piggy-back the support that the libvirt driver currently has, so we don't expect and changes above the driver level as part of this blueprint, and we don't expect any new configuration settings.

Specification URL (additional information):

https://etherpad.openstack.org/p/pci-passthrough-xenapi
Comment 2 Stephen Gordon 2013-12-12 21:31:50 UTC 
Xen is not formally supported in RHELOSP at this time.