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(parent: 0fb3499) | patch
cpucontrol: improve Intel microcode revision check
authorEd Maste <emaste@FreeBSD.org>
Sat, 12 May 2018 15:34:35 +0000 (15:34 +0000)
committerEd Maste <emaste@FreeBSD.org>
Sat, 12 May 2018 15:34:35 +0000 (15:34 +0000)
commit09e24fbe184ce8416d467bd2dd7ef246fa09897c
tree2caaeea92c92d5cab02ba3a055cb3fe7fec20307tree | snapshot
parent0fb349906ef68608577702ca46e86aafdd7456b2commit | diff
cpucontrol: improve Intel microcode revision check

According to the Intel SDM (Volme 3, 9.11.7) the BIOS signature MSR
should be zeroed before executing cpuid (although in practice it does
not seem to matter).

PR: 192487
Submitted by: Dan Lukes
Reported by: Henrique de Moraes Holschuh
MFC after: 3 days
usr.sbin/cpucontrol/intel.c diff | blob | history
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