On Friday 20 May 2011 06:30 pm, Kostik Belousov wrote: > 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.
OTOH, AMD's "CPUID Specification" says "Reserved for use by hypervisor to indicate guest status". :-) Jung-uk Kim _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "[email protected]"
