tree 1c2d4059264b71b36d00dcc96c333a47e28ae18a
parent e88a0faae5baaaa3bdc6f23a55ad6bc7a7b4aa77
author H. Peter Anvin <hpa@zytor.com> 1232991658 -0800
committer H. Peter Anvin <hpa@zytor.com> 1232991658 -0800

x86: correct the CPUID pattern for MSR_IA32_MISC_ENABLE availability

Impact: re-enable CPUID unmasking on affected processors

As far as I am capable of discerning from the documentation,
MSR_IA32_MISC_ENABLE should be available for all family 0xf CPUs, as
well as family 6 for model >= 0xd (newer Pentium M).

The documentation on this isn't ideal, so we need to be on the lookout
for errors, still.

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