Bug 506617

Summary:	RFE: QEMU nesting: Allow nested SVM/VMX to be enabled with KVM/QEMU
Product:	[Community] Virtualization Tools	Reporter:	Aaron Kurtz <a.kurtz>
Component:	libvirt	Assignee:	Daniel Veillard <veillard>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	low
Version:	unspecified	CC:	berrange, crobinso, xen-maint
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-03-17 14:26:31 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	636033

Description Aaron Kurtz 2009-06-18 00:13:59 UTC

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.11) Gecko/2009060308 Ubuntu/9.04 (jaunty) Firefox/3.0.11

KVM has the ability to emulate AMD's virtualization opcodes, providing SVM to the guest and enabling nested virtualization.

I'd like to be able to enable this feature for libvirt-controlled guests.

Reproducible: Always




from kvm's help:

-enable-nesting enable support for running a VM inside the VM (AMD only)

Comment 1 Daniel Berrangé 2009-11-13 11:12:40 UTC

There's a thread discussing this upstream

http://www.redhat.com/archives/libvir-list/2009-November/msg00304.html

Comment 2 Daniel Berrangé 2010-09-22 12:56:44 UTC

An updated proposal based on the CPU model/features support in guest XML

http://www.redhat.com/archives/libvir-list/2010-September/msg00344.html

Comment 3 Cole Robinson 2011-03-17 14:26:31 UTC

Upstream since september:

http://libvirt.org/git/?p=libvirt.git;a=commit;h=f98a6cd6ae95291e09584d3b8853837934506d45