H. Peter Anvin b6734c35af x86: add NOPL as a synthetic CPU feature bit ...

The long noops ("NOPL") are supposed to be detected by family >= 6.
Unfortunately, several non-Intel x86 implementations, both hardware
and software, don't obey this dictum.  Instead, probe for NOPL
directly by executing a NOPL instruction and see if we get #UD.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

2008-09-05 16:13:52 -07:00

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