On Fri, May 20, 2011 at 10:22:56PM +0000, Jung-uk Kim wrote: > Author: jkim > Date: Fri May 20 22:22:56 2011 > New Revision: 222150 > URL: http://svn.freebsd.org/changeset/base/222150 > > Log: > MFC: r221188 > > Define "Hypervisor Present" bit. This bit is used by several hypervisors to > identify CPUs running under emulation.
In the latest revision of the Software Developer's Manual, Intel stated that bit 31 is always 0 for the real CPUs. So it is as much official as it can be.
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