[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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

  • To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: "Woller, Thomas" <thomas.woller@xxxxxxx>
  • Date: Thu, 12 Oct 2006 10:01:46 -0500
  • Delivery-date: Thu, 12 Oct 2006 08:21:06 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acbr6XXhy02v56FgQHGkVa7CShdGVgCGjN0uAAJ3lBA=
  • 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


Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.