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Konstantin Belousov 17edf152e5 Control for Special Register Buffer Data Sampling mitigation. 
New microcode update for Intel enables mitigation for SRBDS, which
slows down RDSEED and related instructions.  The update also provides
a control to limit the mitigation to SGX enclaves, which should
restore the speed of random generator by the cost of potential
cross-core bufer sampling.

See https://software.intel.com/security-software-guidance/insights/deep-dive-special-register-buffer-data-sampling

GIve the user control over it.

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25221
2020-06-12 22:14:45 +00:00
..
colldef Add ga_IE.UTF-8 locale. 2018-11-26 19:39:49 +00:00
ctypedef Mark "private use area" characters as printable. 2019-10-05 22:17:54 +00:00
dict
doc Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
dtrace
examples -F is GNU diff specific, not implemented in BSD diff. 2020-03-18 08:00:46 +00:00
i18n
keys pkgbase: Add the pkg trusted keys to the FreeBSD-utilities package 2019-09-05 19:17:17 +00:00
man Control for Special Register Buffer Data Sampling mitigation. 2020-06-12 22:14:45 +00:00
misc Add myself (gbe) to committers-doc.dot and calendar.freebsd 2020-06-12 09:34:10 +00:00
mk Retire BINUTILS and BINUTILS_BOOTSTRAP options 2020-06-07 00:07:21 +00:00
monetdef Add ga_IE.UTF-8 locale. 2018-11-26 19:39:49 +00:00
msgdef Add ga_IE.UTF-8 locale. 2018-11-26 19:39:49 +00:00
numericdef Add ga_IE.UTF-8 locale. 2018-11-26 19:39:49 +00:00
security
sendmail
skel Make sh(1) support \u in PS1. This removes one fork/exec on interactive 2019-01-24 11:59:46 +00:00
snmp
syscons - sort according to scan code 2020-03-22 21:41:32 +00:00
tabset
termcap Update the screen termcap entries 2020-05-07 12:43:28 +00:00
tests
timedef Finsh readding Big5 in r317204, which was reverting r315568. This commit 2019-06-20 07:17:16 +00:00
vt vt: fix duplicate keymap descriptions 2020-05-20 20:24:37 +00:00
zoneinfo Always install backward compatibility timezones, as they are installed 2020-04-09 05:11:18 +00:00
Makefile
Makefile.inc