Rely on CPUID feature only to enable attaching. MTRR are architectural
authorkib <kib@FreeBSD.org>
Fri, 17 Feb 2017 22:50:41 +0000 (22:50 +0000)
committerkib <kib@FreeBSD.org>
Fri, 17 Feb 2017 22:50:41 +0000 (22:50 +0000)
commit964398bf59d3ca7c8ee989380840ccd9d5326873
treeaf0ec296ef8799907ca4b5b25854437a789487bd
parent98c77a0693f09441a4e2b33e7f2e77c8b7c3144d
Rely on CPUID feature only to enable attaching. MTRR are architectural
and there is no reason to check cpu family or vendor.

Noted by:   royger
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D9657
sys/x86/x86/x86_mem.c