[Xen-devel] VT-x and frontend/backend drivers

[Mark Ryden <markryde@xxxxxxxxx>]

Hello,

  As I saw in this mailing list, there should be some
        emulation solution for drivers when using VT-x processors.
        
See for example :
http://lists.xensource.com/archives/html/xen-devel/2005-12/msg00763.html
        
My question is this;
        
  As I understand, the VMX support in the new  VT-x processors
enables us to prevent Guest OSs from performing
unwanted instructions (HLT , for example). This is
done by using the root and non-root VMX operation.
 Thus , we don't use paravirtualization and we
can run unmodified guest.
  Is there a possibility or any intention of using the
backend-frontend solution of Xen (maybe with some fixes) when using
VT-x processors ? wouldn't it be much better in terms of
performance than using hardware emulation (based on QEMU maybe)?
        
Regards,
        --MR

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