Bug 698082

Summary:	RFE: Support VMWARE corespersocket feature.
Product:	Red Hat Enterprise Linux 6	Reporter:	Kirby Zhou <kirbyzhou>
Component:	qemu-kvm	Assignee:	Virtualization Maintenance <virt-maint>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	6.1	CC:	alex.williamson, juzhang, mkenneth, virt-maint
Target Milestone:	rc	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-05-26 20:27:07 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 Kirby Zhou 2011-04-20 06:35:06 UTC

Description of problem:

Windows XP, Windows 7 and something else only support 2 socket smp.
If I run a RHEL6 host on a 2-way SMP machine with 4 cores per socket, and allocate 4 vcpu to the guest. The guest OS will thing it obtains an 4-way SMP system with 1 core per socket. So Windows 7 and XP can only takes 2 vcpu per guest. It is very poor.

VMWare provides a parameter named 'corespersocket', it can solve the problem above. See http://kb.vmware.com/kb/1010184 for more details.

Please provide something likge 'corespersocket' to help us.

Version-Release number of selected component (if applicable):

Comment 2 Alex Williamson 2011-05-26 20:27:07 UTC

This is already supported, try something like this in your domain xml:

  <vcpu>4</vcpu>
  <cpu>
    <topology sockets='2' cores='2' threads='1'/>
  </cpu>

If that doesn't work, re-open.