tree fe84425001df1425d37b0754e21f706ed9687052
parent e6a5652fd156a286faadbf7a4062b5354d4e346e
author H. Peter Anvin <hpa@zytor.com> 1218839791 -0700
committer H. Peter Anvin <hpa@zytor.com> 1220656424 -0700

x86: boot: stub out unimplemented CPU feature words

The CPU feature detection code in the boot code is somewhat minimal,
and doesn't include all possible CPUID words.  In particular, it
doesn't contain the code for CPU feature words 2 (Transmeta),
3 (Linux-specific), 5 (VIA), or 7 (scattered).  Zero them out, so we
can still set those bits as known at compile time; in particular, this
allows creating a Linux-specific NOPL flag and have it required (and
therefore resolvable at compile time) in 64-bit mode.

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