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[Xen-users] 'lowest common denominator' cpuid feature set


  • To: "Xen Users" <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
  • Date: Wed, 18 Nov 2009 09:56:53 +1100
  • Delivery-date: Tue, 17 Nov 2009 14:57:49 -0800
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: Acpn2UFUDwSy+u8hSPKwDdonfbpbag==
  • Thread-topic: 'lowest common denominator' cpuid feature set

I want to be able to test live migration... I have an intel box and an
amd box, so live migration between them won't 'just work'. From what
I've read though, I should be able to use cpuid to turn off all the cpu
features which might be different between them. Is this do-able? I'm
willing to accept any resulting loss of performance etc.

James

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