Konstantin Belousov 319117fd57 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
..
ia32_exception.S	IBRS support, AKA Spectre hardware mitigation.	2018-01-31 14:36:27 +00:00
ia32_misc.c	sys/amd64: further adoption of SPDX licensing ID tags.	2017-11-27 15:03:07 +00:00
ia32_reg.c	sys/amd64: further adoption of SPDX licensing ID tags.	2017-11-27 15:03:07 +00:00
ia32_signal.c	Don't let cpu_set_syscall_retval() clobber exec_setregs().	2017-11-24 07:35:08 +00:00
ia32_sigtramp.S
ia32_syscall.c	PTI for amd64.	2018-01-17 11:44:21 +00:00