freebsd-skq/sys/i386
kib 01b52fdebb IBRS support, AKA Spectre hardware mitigation.
It is coded according to the Intel document 336996-001, reading of the
patches posted on lkml, and some additional consultations with Intel.

For existing processors, you need a microcode update which adds IBRS
CPU features, and to manually enable it by setting the tunable/sysctl
hw.ibrs_disable to 0.  Current status can be checked in sysctl
hw.ibrs_active.  The mitigation might be inactive if the CPU feature
is not patched in, or if CPU reports that IBRS use is not required, by
IA32_ARCH_CAP_IBRS_ALL bit.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D14029
2018-01-31 14:36:27 +00:00
..
acpica Minor cleanups found while fixing a bug involving double mapping of low 2017-12-15 03:05:14 +00:00
bios inittodr(0) actually sets the time, so there's no need to call 2018-01-10 17:25:08 +00:00
cloudabi32 Use TO_PTR() to convert integers to pointers. 2017-11-26 14:45:56 +00:00
conf Enable VIMAGE in i386 GENERIC (revert r327840) 2018-01-14 16:04:51 +00:00
i386 IBRS support, AKA Spectre hardware mitigation. 2018-01-31 14:36:27 +00:00
ibcs2 Don't use an .OBJDIR for 'make sysent'. 2018-01-29 19:14:15 +00:00
include Define PHYS_TO_DMAP() and DMAP_TO_PHYS() as panics on the architectures 2018-01-19 22:17:13 +00:00
linux Don't use an .OBJDIR for 'make sysent'. 2018-01-29 19:14:15 +00:00
pci sys/i386: further adoption of SPDX licensing ID tags. 2017-11-27 15:08:52 +00:00
Makefile