Rather than replicating the maths from the kernel, use the value the kernel calculated directly as we already read it with struct vnet.  This will make kvm_vnet.c more resilent in case of possible kernel changes.
Rather than replicating the maths from the kernel, use the
value the kernel calculated directly as we already read it
with struct vnet.  This will make kvm_vnet.c more resilent
in case of possible kernel changes.

Reviewed by:	rwatson
Approved by:	re (kib)

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