Re: [PATCH 1/2] VMware detection support for x86 and x86-64

[H. Peter Anvin]

Alok kataria wrote:
> Even if there is anything on that port on native hardware it would
> work perfectly well and is _safe_.
> First let me post the code to access this backdoor port (the way it
> should really be done )
>
> So whenever we query port  0x5658 , with the GETVERSION command (which
> is the first thing we do with this port), we expect that  eax !=
> 0xFFFFFFFF   and ebx has a  VMWARE specific MAGIC value.  Please note
> that ebx has been initialized to zero in the code above.

You have no idea what you just did to a real piece of hardware.

	-hpa
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