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RE: [Xen-devel] [SVM][PATCH] Add test for SVM Disabled via BIOS

To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-devel] [SVM][PATCH] Add test for SVM Disabled via BIOS
From: "Woller, Thomas" <thomas.woller@xxxxxxx>
Date: Thu, 12 Oct 2006 10:01:46 -0500
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Thread-topic: [Xen-devel] [SVM][PATCH] Add test for SVM Disabled via BIOS
> What happens if it is disabled and we ignore the MSR? Does 
> everything just work, or does, for example, the write to 
> EFER.SVME fault?
We experienced a #GP during hv boot setting EFER.SVME.  So, the hv never
came up.  Should also get a #UD if try to execute one of the AMD-V
instructions first. 

> Does this new MSR have a name?
VM_CR (Virtual Machine Control Register in BKDG to be out in public spec
soon)

  --Tom



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