Bug 885400

Summary:	report if host supports vt-d/amd-vi in capabilities output
Product:	[Community] Virtualization Tools	Reporter:	Cole Robinson <crobinso>
Component:	libvirt	Assignee:	Libvirt Maintainers <libvirt-maint>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	acathrow
Target Milestone:	---
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Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-11-17 20:33:22 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Cole Robinson 2012-12-09 02:48:17 UTC

I don't know how realistic this is, but it would be cool if libvirt could report in <capabilities> output if the host supports vt-d/amd-vi == pci passthrough. That way apps could have a bit of a chance letting users know if it will even work.

Also according to this:

http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM

Plain PCI devices (vs. PCI-e) kinda suck for passthrough, as do devices that don't support MSI. If there was some way to report that in <nodedev> output that would be cool too (though probably material for another bug report).

Comment 1 Cole Robinson 2013-11-17 20:33:22 UTC


*** This bug has been marked as a duplicate of bug 967231 ***